Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
  powerpc/44x: Update ppc44x_defconfig
  powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option
  fsl_rio: Add comments for sRIO registers.
  powerpc/fsl-booke: Add e55xx (64-bit) smp defconfig
  powerpc/fsl-booke: Add p5020 DS board support
  powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips
  powerpc/fsl-booke: Add support for FSL Arch v1.0 MMU in setup_page_sizes
  powerpc/fsl-booke: Add support for FSL 64-bit e5500 core
  powerpc/85xx: add cache-sram support
  powerpc/85xx: add ngPIXIS FPGA device tree node to the P1022DS board
  powerpc: Fix compile error with paca code on ppc64e
  powerpc/fsl-booke: Add p3041 DS board support
  oprofile/fsl emb: Don't set MSR[PMM] until after clearing the interrupt.
  powerpc/fsl-booke: Add PCI device ids for P2040/P3041/P5010/P5020 QoirQ chips
  powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers
  powerpc/fsl_booke: Add support to boot from core other than 0
  powerpc/p1022: Add probing for individual DMA channels
  powerpc/fsl_soc: Search all global-utilities nodes for rstccr
  powerpc: Fix invalid page flags in create TLB CAM path for PTE_64BIT
  powerpc/mpc83xx: Support for MPC8308 P1M board
  ...

Fix up conflict with the generic irq_work changes in arch/powerpc/kernel/time.c

arch/powerpc/boot/addnote.c

@@ -20,7 +20,7 @@
 #include <string.h>
 
 /* CHRP note section */
-char arch[] = "PowerPC";
+static const char arch[] = "PowerPC";
 
 #define N_DESCR	6
 unsigned int descr[N_DESCR] = {
@@ -33,7 +33,7 @@ unsigned int descr[N_DESCR] = {
 };
 
 /* RPA note section */
-char rpaname[] = "IBM,RPA-Client-Config";
+static const char rpaname[] = "IBM,RPA-Client-Config";
 
 /*
  * Note: setting ignore_my_client_config *should* mean that OF ignores

arch/powerpc/boot/dts/bluestone.dts

@@ -0,0 +1,254 @@
+/*
+ * Device Tree for Bluestone (APM821xx) board.
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@apm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+/dts-v1/;
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <1>;
+	model = "apm,bluestone";
+	compatible = "apm,bluestone";
+	dcr-parent = <&{/cpus/cpu@0}>;
+
+	aliases {
+		ethernet0 = &EMAC0;
+		serial0 = &UART0;
+		serial1 = &UART1;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			model = "PowerPC,apm821xx";
+			reg = <0x00000000>;
+			clock-frequency = <0>; /* Filled in by U-Boot */
+			timebase-frequency = <0>; /* Filled in by U-Boot */
+			i-cache-line-size = <32>;
+			d-cache-line-size = <32>;
+			i-cache-size = <32768>;
+			d-cache-size = <32768>;
+			dcr-controller;
+			dcr-access-method = "native";
+			next-level-cache = <&L2C0>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x00000000>; /* Filled in by U-Boot */
+	};
+
+	UIC0: interrupt-controller0 {
+		compatible = "ibm,uic";
+		interrupt-controller;
+		cell-index = <0>;
+		dcr-reg = <0x0c0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+	};
+
+	UIC1: interrupt-controller1 {
+		compatible = "ibm,uic";
+		interrupt-controller;
+		cell-index = <1>;
+		dcr-reg = <0x0d0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	UIC2: interrupt-controller2 {
+		compatible = "ibm,uic";
+		interrupt-controller;
+		cell-index = <2>;
+		dcr-reg = <0x0e0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <0xa 0x4 0xb 0x4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	UIC3: interrupt-controller3 {
+		compatible = "ibm,uic";
+		interrupt-controller;
+		cell-index = <3>;
+		dcr-reg = <0x0f0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <0x10 0x4 0x11 0x4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	SDR0: sdr {
+		compatible = "ibm,sdr-apm821xx";
+		dcr-reg = <0x00e 0x002>;
+	};
+
+	CPR0: cpr {
+		compatible = "ibm,cpr-apm821xx";
+		dcr-reg = <0x00c 0x002>;
+	};
+
+	plb {
+		compatible = "ibm,plb4";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges;
+		clock-frequency = <0>; /* Filled in by U-Boot */
+
+		SDRAM0: sdram {
+			compatible = "ibm,sdram-apm821xx";
+			dcr-reg = <0x010 0x002>;
+		};
+
+		MAL0: mcmal {
+			compatible = "ibm,mcmal2";
+			descriptor-memory = "ocm";
+			dcr-reg = <0x180 0x062>;
+			num-tx-chans = <1>;
+			num-rx-chans = <1>;
+			#address-cells = <0>;
+			#size-cells = <0>;
+			interrupt-parent = <&UIC2>;
+			interrupts = <	/*TXEOB*/ 0x6 0x4
+					/*RXEOB*/ 0x7 0x4
+					/*SERR*/  0x3 0x4
+					/*TXDE*/  0x4 0x4
+					/*RXDE*/  0x5 0x4
+		};
+
+		POB0: opb {
+			compatible = "ibm,opb";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0xb0000000 0x00000004 0xb0000000 0x50000000>;
+			clock-frequency = <0>; /* Filled in by U-Boot */
+
+			EBC0: ebc {
+				compatible = "ibm,ebc";
+				dcr-reg = <0x012 0x002>;
+				#address-cells = <2>;
+				#size-cells = <1>;
+				clock-frequency = <0>; /* Filled in by U-Boot */
+				/* ranges property is supplied by U-Boot */
+				ranges = < 0x00000003 0x00000000 0xe0000000 0x8000000>;
+				interrupts = <0x6 0x4>;
+				interrupt-parent = <&UIC1>;
+
+				nor_flash@0,0 {
+					compatible = "amd,s29gl512n", "cfi-flash";
+					bank-width = <2>;
+					reg = <0x00000000 0x00000000 0x00400000>;
+					#address-cells = <1>;
+					#size-cells = <1>;
+					partition@0 {
+						label = "kernel";
+						reg = <0x00000000 0x00180000>;
+					};
+					partition@180000 {
+						label = "env";
+						reg = <0x00180000 0x00020000>;
+					};
+					partition@1a0000 {
+						label = "u-boot";
+						reg = <0x001a0000 0x00060000>;
+					};
+				};
+			}
+
+			UART0: serial@ef600300 {
+				device_type = "serial";
+				compatible = "ns16550";
+				reg = <0xef600300 0x00000008>;
+				virtual-reg = <0xef600300>;
+				clock-frequency = <0>; /* Filled in by U-Boot */
+				current-speed = <0>; /* Filled in by U-Boot */
+				interrupt-parent = <&UIC1>;
+				interrupts = <0x1 0x4>;
+			};
+
+			IIC0: i2c@ef600700 {
+				compatible = "ibm,iic";
+				reg = <0xef600700 0x00000014>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <0x2 0x4>;
+			};
+
+			IIC1: i2c@ef600800 {
+				compatible = "ibm,iic";
+				reg = <0xef600800 0x00000014>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <0x3 0x4>;
+			};
+
+			RGMII0: emac-rgmii@ef601500 {
+				compatible = "ibm,rgmii";
+				reg = <0xef601500 0x00000008>;
+				has-mdio;
+			};
+
+			TAH0: emac-tah@ef601350 {
+				compatible = "ibm,tah";
+				reg = <0xef601350 0x00000030>;
+			};
+
+			EMAC0: ethernet@ef600c00 {
+				device_type = "network";
+				compatible = "ibm,emac4sync";
+				interrupt-parent = <&EMAC0>;
+				interrupts = <0x0 0x1>;
+				#interrupt-cells = <1>;
+				#address-cells = <0>;
+				#size-cells = <0>;
+				interrupt-map = </*Status*/ 0x0 &UIC2 0x10 0x4
+						 /*Wake*/   0x1 &UIC2 0x14 0x4>;
+				reg = <0xef600c00 0x000000c4>;
+				local-mac-address = [000000000000]; /* Filled in by U-Boot */
+				mal-device = <&MAL0>;
+				mal-tx-channel = <0>;
+				mal-rx-channel = <0>;
+				cell-index = <0>;
+				max-frame-size = <9000>;
+				rx-fifo-size = <16384>;
+				tx-fifo-size = <2048>;
+				phy-mode = "rgmii";
+				phy-map = <0x00000000>;
+				rgmii-device = <&RGMII0>;
+				rgmii-channel = <0>;
+				tah-device = <&TAH0>;
+				tah-channel = <0>;
+				has-inverted-stacr-oc;
+				has-new-stacr-staopc;
+			};
+		};
+
+	};
+};

arch/powerpc/boot/dts/mpc8308_p1m.dts

@@ -0,0 +1,332 @@
+/*
+ * mpc8308_p1m Device Tree Source
+ *
+ * Copyright 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "denx,mpc8308_p1m";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	aliases {
+		ethernet0 = &enet0;
+		ethernet1 = &enet1;
+		serial0 = &serial0;
+		serial1 = &serial1;
+		pci0 = &pci0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		PowerPC,8308@0 {
+			device_type = "cpu";
+			reg = <0x0>;
+			d-cache-line-size = <32>;
+			i-cache-line-size = <32>;
+			d-cache-size = <16384>;
+			i-cache-size = <16384>;
+			timebase-frequency = <0>;	// from bootloader
+			bus-frequency = <0>;		// from bootloader
+			clock-frequency = <0>;		// from bootloader
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x08000000>;	// 128MB at 0
+	};
+
+	localbus@e0005000 {
+		#address-cells = <2>;
+		#size-cells = <1>;
+		compatible = "fsl,mpc8315-elbc", "fsl,elbc", "simple-bus";
+		reg = <0xe0005000 0x1000>;
+		interrupts = <77 0x8>;
+		interrupt-parent = <&ipic>;
+
+		ranges = <0x0 0x0 0xfc000000 0x04000000
+		          0x1 0x0 0xfbff0000 0x00008000
+		          0x2 0x0 0xfbff8000 0x00008000>;
+
+		flash@0,0 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "cfi-flash";
+			reg = <0x0 0x0 0x4000000>;
+			bank-width = <2>;
+			device-width = <1>;
+
+			u-boot@0 {
+				reg = <0x0 0x60000>;
+				read-only;
+			};
+			env@60000 {
+				reg = <0x60000 0x20000>;
+			};
+			env1@80000 {
+				reg = <0x80000 0x20000>;
+			};
+			kernel@a0000 {
+				reg = <0xa0000 0x200000>;
+			};
+			dtb@2a0000 {
+				reg = <0x2a0000 0x20000>;
+			};
+			ramdisk@2c0000 {
+				reg = <0x2c0000 0x640000>;
+			};
+			user@700000 {
+				reg = <0x700000 0x3900000>;
+			};
+		};
+
+		can@1,0 {
+			compatible = "nxp,sja1000";
+			reg = <0x1 0x0 0x80>;
+			interrupts = <18 0x8>;
+			interrups-parent = <&ipic>;
+		};
+
+		cpld@2,0 {
+			compatible = "denx,mpc8308_p1m-cpld";
+			reg = <0x2 0x0 0x8>;
+			interrupts = <48 0x8>;
+			interrups-parent = <&ipic>;
+		};
+	};
+
+	immr@e0000000 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		device_type = "soc";
+		compatible = "fsl,mpc8308-immr", "simple-bus";
+		ranges = <0 0xe0000000 0x00100000>;
+		reg = <0xe0000000 0x00000200>;
+		bus-frequency = <0>;
+
+		i2c@3000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "fsl-i2c";
+			reg = <0x3000 0x100>;
+			interrupts = <14 0x8>;
+			interrupt-parent = <&ipic>;
+			dfsrr;
+			fram@50 {
+				compatible = "ramtron,24c64";
+				reg = <0x50>;
+			};
+		};
+
+		i2c@3100 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "fsl-i2c";
+			reg = <0x3100 0x100>;
+			interrupts = <15 0x8>;
+			interrupt-parent = <&ipic>;
+			dfsrr;
+			pwm@28 {
+				compatible = "maxim,ds1050";
+				reg = <0x28>;
+			};
+			sensor@48 {
+				compatible = "maxim,max6625";
+				reg = <0x48>;
+			};
+			sensor@49 {
+				compatible = "maxim,max6625";
+				reg = <0x49>;
+			};
+			sensor@4b {
+				compatible = "maxim,max6625";
+				reg = <0x4b>;
+			};
+		};
+
+		usb@23000 {
+			compatible = "fsl-usb2-dr";
+			reg = <0x23000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupt-parent = <&ipic>;
+			interrupts = <38 0x8>;
+			dr_mode = "peripheral";
+			phy_type = "ulpi";
+		};
+
+		enet0: ethernet@24000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x24000 0x1000>;
+
+			cell-index = <0>;
+			device_type = "network";
+			model = "eTSEC";
+			compatible = "gianfar";
+			reg = <0x24000 0x1000>;
+			local-mac-address = [ 00 00 00 00 00 00 ];
+			interrupts = <32 0x8 33 0x8 34 0x8>;
+			interrupt-parent = <&ipic>;
+			phy-handle = < &phy1 >;
+
+			mdio@520 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "fsl,gianfar-mdio";
+				reg = <0x520 0x20>;
+				phy1: ethernet-phy@1 {
+					interrupt-parent = <&ipic>;
+					interrupts = <17 0x8>;
+					reg = <0x1>;
+					device_type = "ethernet-phy";
+				};
+				phy2: ethernet-phy@2 {
+					interrupt-parent = <&ipic>;
+					interrupts = <19 0x8>;
+					reg = <0x2>;
+					device_type = "ethernet-phy";
+				};
+				tbi0: tbi-phy@11 {
+					reg = <0x11>;
+					device_type = "tbi-phy";
+				};
+			};
+		};
+
+		enet1: ethernet@25000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			cell-index = <1>;
+			device_type = "network";
+			model = "eTSEC";
+			compatible = "gianfar";
+			reg = <0x25000 0x1000>;
+			ranges = <0x0 0x25000 0x1000>;
+			local-mac-address = [ 00 00 00 00 00 00 ];
+			interrupts = <35 0x8 36 0x8 37 0x8>;
+			interrupt-parent = <&ipic>;
+			phy-handle = < &phy2 >;
+
+			mdio@520 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "fsl,gianfar-tbi";
+				reg = <0x520 0x20>;
+				tbi1: tbi-phy@11 {
+					reg = <0x11>;
+					device_type = "tbi-phy";
+				};
+			};
+		};
+
+		serial0: serial@4500 {
+			cell-index = <0>;
+			device_type = "serial";
+			compatible = "ns16550";
+			reg = <0x4500 0x100>;
+			clock-frequency = <133333333>;
+			interrupts = <9 0x8>;
+			interrupt-parent = <&ipic>;
+		};
+
+		serial1: serial@4600 {
+			cell-index = <1>;
+			device_type = "serial";
+			compatible = "ns16550";
+			reg = <0x4600 0x100>;
+			clock-frequency = <133333333>;
+			interrupts = <10 0x8>;
+			interrupt-parent = <&ipic>;
+		};
+
+		gpio@c00 {
+			#gpio-cells = <2>;
+			compatible = "fsl,mpc8308-gpio", "fsl,mpc8349-gpio";
+			reg = <0xc00 0x18>;
+			interrupts = <74 0x8>;
+			interrupt-parent = <&ipic>;
+			gpio-controller;
+		};
+
+		timer@500 {
+			compatible = "fsl,mpc8308-gtm", "fsl,gtm";
+			reg = <0x500 0x100>;
+			interrupts = <90 8 78 8 84 8 72 8>;
+			interrupt-parent = <&ipic>;
+			clock-frequency = <133333333>;
+		};
+
+		/* IPIC
+		 * interrupts cell = <intr #, sense>
+		 * sense values match linux IORESOURCE_IRQ_* defines:
+		 * sense == 8: Level, low assertion
+		 * sense == 2: Edge, high-to-low change
+		 */
+		ipic: interrupt-controller@700 {
+			compatible = "fsl,ipic";
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <2>;
+			reg = <0x700 0x100>;
+			device_type = "ipic";
+		};
+
+		ipic-msi@7c0 {
+			compatible = "fsl,ipic-msi";
+			reg = <0x7c0 0x40>;
+			msi-available-ranges = <0x0 0x100>;
+			interrupts = < 0x43 0x8
+					0x4  0x8
+					0x51 0x8
+					0x52 0x8
+					0x56 0x8
+					0x57 0x8
+					0x58 0x8
+					0x59 0x8 >;
+			interrupt-parent = < &ipic >;
+		};
+
+	};
+
+	pci0: pcie@e0009000 {
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+		device_type = "pci";
+		compatible = "fsl,mpc8308-pcie", "fsl,mpc8314-pcie";
+		reg = <0xe0009000 0x00001000
+			0xb0000000 0x01000000>;
+		ranges = <0x02000000 0 0xa0000000 0xa0000000 0 0x10000000
+		          0x01000000 0 0x00000000 0xb1000000 0 0x00800000>;
+		bus-range = <0 0>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &ipic 1 8>;
+		interrupts = <0x1 0x8>;
+		interrupt-parent = <&ipic>;
+		clock-frequency = <0>;
+
+		pcie@0 {
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			reg = <0 0 0 0 0>;
+			ranges = <0x02000000 0 0xa0000000
+				  0x02000000 0 0xa0000000
+				  0 0x10000000
+				  0x01000000 0 0x00000000
+				  0x01000000 0 0x00000000
+				  0 0x00800000>;
+		};
+	};
+};

arch/powerpc/boot/dts/p1022ds.dts

@@ -148,6 +148,17 @@
 				label = "reserved-nand";
 			};
 		};
+
+		board-control@3,0 {
+			compatible = "fsl,p1022ds-pixis";
+			reg = <3 0 0x30>;
+			interrupt-parent = <&mpic>;
+			/*
+			 * IRQ8 is generated if the "EVENT" switch is pressed
+			 * and PX_CTL[EVESEL] is set to 00.
+			 */
+			interrupts = <8 8>;
+		};
 	};
 
 	soc@fffe00000 {

arch/powerpc/configs/44x/bluestone_defconfig

@@ -0,0 +1,68 @@
+CONFIG_44x=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_PCI_QUIRKS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_BLUESTONE=y
+# CONFIG_EBONY is not set
+# CONFIG_KVM_GUEST is not set
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_OF_PARTS=y
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=35000
+CONFIG_NETDEVICES=y
+CONFIG_NET_ETHERNET=y
+CONFIG_IBM_NEW_EMAC=y
+CONFIG_IBM_NEW_EMAC_RXB=256
+CONFIG_IBM_NEW_EMAC_TXB=256
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_RUNTIME_UARTS=2
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_IBM_IIC=y
+CONFIG_SENSORS_AD7414=y
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_M41T80=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_CRAMFS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_ROOT_NFS=y
+CONFIG_NLS=y

arch/powerpc/configs/e55xx_smp_defconfig

@@ -0,0 +1,84 @@
+CONFIG_PPC64=y
+CONFIG_PPC_BOOK3E_64=y
+# CONFIG_VIRT_CPU_ACCOUNTING is not set
+CONFIG_SMP=y
+CONFIG_NR_CPUS=2
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_SYSFS_DEPRECATED_V2=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_EMBEDDED=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_P5020_DS=y
+# CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BINFMT_MISC=m
+CONFIG_SPARSE_IRQ=y
+# CONFIG_PCI is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_PROC_DEVICETREE=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=131072
+CONFIG_EEPROM_LEGACY=y
+CONFIG_INPUT_FF_MEMLESS=m
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_DETECT_IRQ=y
+CONFIG_SERIAL_8250_RSA=y
+CONFIG_I2C=y
+# CONFIG_HWMON is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_DMADEVICES=y
+CONFIG_FSL_DMA=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_MAC_PARTITION=y
+CONFIG_NLS=y
+CONFIG_NLS_UTF8=m
+CONFIG_CRC_T10DIF=y
+CONFIG_CRC_ITU_T=m
+CONFIG_LIBCRC32C=m
+CONFIG_FRAME_WARN=1024
+CONFIG_DEBUG_FS=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DETECT_HUNG_TASK=y
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_DEBUG_INFO=y
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+CONFIG_VIRQ_DEBUG=y
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_SHA1=m
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRYPTO_DEV_TALITOS=y

arch/powerpc/configs/ppc44x_defconfig

@@ -12,6 +12,7 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_BAMBOO=y
+CONFIG_BLUESTONE=y
 CONFIG_SAM440EP=y
 CONFIG_SEQUOIA=y
 CONFIG_TAISHAN=y
@@ -97,14 +98,17 @@ CONFIG_USB_STORAGE=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=m
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_INOTIFY=y
 CONFIG_VFAT_FS=m
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_JFFS2_FS=y
 CONFIG_UBIFS_FS=m
 CONFIG_UBIFS_FS_XATTR=y
+CONFIG_LOGFS=m
 CONFIG_CRAMFS=y
+CONFIG_SQUASHFS=m
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZO=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
@@ -116,11 +120,8 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_DETECT_HUNG_TASK=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_SYSCTL_SYSCALL_CHECK=y
-CONFIG_CRYPTO_CBC=y
 CONFIG_CRYPTO_ECB=y
 CONFIG_CRYPTO_PCBC=y
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
 CONFIG_VIRTUALIZATION=y

arch/powerpc/configs/ppc64e_defconfig

@@ -18,6 +18,7 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_P5020_DS=y
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
@@ -256,7 +257,6 @@ CONFIG_HID_ZEROPLUS=y
 CONFIG_USB=y
 CONFIG_USB_DEVICEFS=y
 CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_EHCI_TT_NEWSCHED=y
 # CONFIG_USB_EHCI_HCD_PPC_OF is not set
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_STORAGE=m
@@ -290,7 +290,6 @@ CONFIG_JFS_POSIX_ACL=y
 CONFIG_JFS_SECURITY=y
 CONFIG_XFS_FS=m
 CONFIG_XFS_POSIX_ACL=y
-CONFIG_INOTIFY=y
 CONFIG_AUTOFS4_FS=m
 CONFIG_ISO9660_FS=y
 CONFIG_UDF_FS=m
@@ -384,7 +383,6 @@ CONFIG_CRYPTO_TGR192=m
 CONFIG_CRYPTO_WP512=m
 CONFIG_CRYPTO_AES=m
 CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_CAST6=m
 CONFIG_CRYPTO_KHAZAD=m

arch/powerpc/include/asm/checksum.h

@@ -52,12 +52,22 @@ extern __wsum csum_partial(const void *buff, int len, __wsum sum);
 extern __wsum csum_partial_copy_generic(const void *src, void *dst,
 					      int len, __wsum sum,
 					      int *src_err, int *dst_err);
+
+#ifdef __powerpc64__
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+extern __wsum csum_and_copy_from_user(const void __user *src, void *dst,
+				      int len, __wsum sum, int *err_ptr);
+#define HAVE_CSUM_COPY_USER
+extern __wsum csum_and_copy_to_user(const void *src, void __user *dst,
+				    int len, __wsum sum, int *err_ptr);
+#else
 /*
  * the same as csum_partial, but copies from src to dst while it
  * checksums.
  */
 #define csum_partial_copy_from_user(src, dst, len, sum, errp)   \
         csum_partial_copy_generic((__force const void *)(src), (dst), (len), (sum), (errp), NULL)
+#endif
 
 #define csum_partial_copy_nocheck(src, dst, len, sum)   \
         csum_partial_copy_generic((src), (dst), (len), (sum), NULL, NULL)

arch/powerpc/include/asm/compat.h

@@ -143,7 +143,7 @@ static inline void __user *arch_compat_alloc_user_space(long len)
 	 * We cant access below the stack pointer in the 32bit ABI and
 	 * can access 288 bytes in the 64bit ABI
 	 */
-	if (!(test_thread_flag(TIF_32BIT)))
+	if (!is_32bit_task())
 		usp -= 288;
 
 	return (void __user *) (usp - len);
@@ -213,7 +213,7 @@ struct compat_shmid64_ds {
 
 static inline int is_compat_task(void)
 {
-	return test_thread_flag(TIF_32BIT);
+	return is_32bit_task();
 }
 
 #endif /* __KERNEL__ */

arch/powerpc/include/asm/cputable.h

@@ -198,6 +198,7 @@ extern const char *powerpc_base_platform;
 #define CPU_FTR_CP_USE_DCBTZ		LONG_ASM_CONST(0x0040000000000000)
 #define CPU_FTR_UNALIGNED_LD_STD	LONG_ASM_CONST(0x0080000000000000)
 #define CPU_FTR_ASYM_SMT		LONG_ASM_CONST(0x0100000000000000)
+#define CPU_FTR_STCX_CHECKS_ADDRESS	LONG_ASM_CONST(0x0200000000000000)
 
 #ifndef __ASSEMBLY__
 
@@ -392,28 +393,31 @@ extern const char *powerpc_base_platform;
 	    CPU_FTR_MMCRA | CPU_FTR_CTRL)
 #define CPU_FTRS_POWER4	(CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
-	    CPU_FTR_MMCRA | CPU_FTR_CP_USE_DCBTZ)
+	    CPU_FTR_MMCRA | CPU_FTR_CP_USE_DCBTZ | \
+	    CPU_FTR_STCX_CHECKS_ADDRESS)
 #define CPU_FTRS_PPC970	(CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP | CPU_FTR_MMCRA | \
-	    CPU_FTR_CP_USE_DCBTZ)
+	    CPU_FTR_CP_USE_DCBTZ | CPU_FTR_STCX_CHECKS_ADDRESS)
 #define CPU_FTRS_POWER5	(CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
-	    CPU_FTR_PURR)
+	    CPU_FTR_PURR | CPU_FTR_STCX_CHECKS_ADDRESS)
 #define CPU_FTRS_POWER6 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
 	    CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
-	    CPU_FTR_DSCR | CPU_FTR_UNALIGNED_LD_STD)
+	    CPU_FTR_DSCR | CPU_FTR_UNALIGNED_LD_STD | \
+	    CPU_FTR_STCX_CHECKS_ADDRESS)
 #define CPU_FTRS_POWER7 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
 	    CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
-	    CPU_FTR_DSCR | CPU_FTR_SAO  | CPU_FTR_ASYM_SMT)
+	    CPU_FTR_DSCR | CPU_FTR_SAO  | CPU_FTR_ASYM_SMT | \
+	    CPU_FTR_STCX_CHECKS_ADDRESS)
 #define CPU_FTRS_CELL	(CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \

arch/powerpc/include/asm/dma-mapping.h

@@ -127,19 +127,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
 	return dma_ops->dma_supported(dev, mask);
 }
 
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-	if (unlikely(dma_ops == NULL))
-		return -EIO;
-	if (dma_ops->set_dma_mask != NULL)
-		return dma_ops->set_dma_mask(dev, dma_mask);
-	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
-		return -EIO;
-	*dev->dma_mask = dma_mask;
-	return 0;
-}
+extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
 static inline void *dma_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag)

arch/powerpc/include/asm/elf.h

@@ -250,7 +250,7 @@ do {								\
  * the 64bit ABI has never had these issues dont enable the workaround
  * even if we have an executable stack.
  */
-# define elf_read_implies_exec(ex, exec_stk) (test_thread_flag(TIF_32BIT) ? \
+# define elf_read_implies_exec(ex, exec_stk) (is_32bit_task() ? \
 		(exec_stk == EXSTACK_DEFAULT) : 0)
 #else 
 # define SET_PERSONALITY(ex) \

arch/powerpc/include/asm/exception-64s.h

@@ -137,7 +137,8 @@
 	li	r10,0;							   \
 	ld	r11,exception_marker@toc(r2);				   \
 	std	r10,RESULT(r1);		/* clear regs->result		*/ \
-	std	r11,STACK_FRAME_OVERHEAD-16(r1); /* mark the frame	*/
+	std	r11,STACK_FRAME_OVERHEAD-16(r1); /* mark the frame	*/ \
+	ACCOUNT_STOLEN_TIME
 
 /*
  * Exception vectors.

arch/powerpc/include/asm/fsl_85xx_cache_sram.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * Cache SRAM handling for QorIQ platform
+ *
+ * Author: Vivek Mahajan <vivek.mahajan@freescale.com>
+
+ * This file is derived from the original work done
+ * by Sylvain Munaut for the Bestcomm SRAM allocator.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_POWERPC_FSL_85XX_CACHE_SRAM_H__
+#define __ASM_POWERPC_FSL_85XX_CACHE_SRAM_H__
+
+#include <asm/rheap.h>
+#include <linux/spinlock.h>
+
+/*
+ * Cache-SRAM
+ */
+
+struct mpc85xx_cache_sram {
+	phys_addr_t base_phys;
+	void *base_virt;
+	unsigned int size;
+	rh_info_t *rh;
+	spinlock_t lock;
+};
+
+extern void mpc85xx_cache_sram_free(void *ptr);
+extern void *mpc85xx_cache_sram_alloc(unsigned int size,
+				  phys_addr_t *phys, unsigned int align);
+
+#endif /* __AMS_POWERPC_FSL_85XX_CACHE_SRAM_H__ */

arch/powerpc/include/asm/kexec.h

@@ -91,6 +91,7 @@ extern void machine_kexec_simple(struct kimage *image);
 extern void crash_kexec_secondary(struct pt_regs *regs);
 extern int overlaps_crashkernel(unsigned long start, unsigned long size);
 extern void reserve_crashkernel(void);
+extern void machine_kexec_mask_interrupts(void);
 
 #else /* !CONFIG_KEXEC */
 static inline int kexec_sr_activated(int cpu) { return 0; }

arch/powerpc/include/asm/kvm_fpu.h

@@ -82,7 +82,7 @@ FPD_THREE_IN(fmadd)
 FPD_THREE_IN(fnmsub)
 FPD_THREE_IN(fnmadd)
 
-extern void kvm_cvt_fd(u32 *from, u64 *to, u64 *fpscr);
-extern void kvm_cvt_df(u64 *from, u32 *to, u64 *fpscr);
+extern void kvm_cvt_fd(u32 *from, u64 *to);
+extern void kvm_cvt_df(u64 *from, u32 *to);
 
 #endif

arch/powerpc/include/asm/lppaca.h

@@ -153,6 +153,8 @@ struct lppaca {
 
 extern struct lppaca lppaca[];
 
+#define lppaca_of(cpu)	(*paca[cpu].lppaca_ptr)
+
 /*
  * SLB shadow buffer structure as defined in the PAPR.  The save_area
  * contains adjacent ESID and VSID pairs for each shadowed SLB.  The
@@ -170,6 +172,33 @@ struct slb_shadow {
 
 extern struct slb_shadow slb_shadow[];
 
+/*
+ * Layout of entries in the hypervisor's dispatch trace log buffer.
+ */
+struct dtl_entry {
+	u8	dispatch_reason;
+	u8	preempt_reason;
+	u16	processor_id;
+	u32	enqueue_to_dispatch_time;
+	u32	ready_to_enqueue_time;
+	u32	waiting_to_ready_time;
+	u64	timebase;
+	u64	fault_addr;
+	u64	srr0;
+	u64	srr1;
+};
+
+#define DISPATCH_LOG_BYTES	4096	/* bytes per cpu */
+#define N_DISPATCH_LOG		(DISPATCH_LOG_BYTES / sizeof(struct dtl_entry))
+
+/*
+ * When CONFIG_VIRT_CPU_ACCOUNTING = y, the cpu accounting code controls
+ * reading from the dispatch trace log.  If other code wants to consume
+ * DTL entries, it can set this pointer to a function that will get
+ * called once for each DTL entry that gets processed.
+ */
+extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index);
+
 #endif /* CONFIG_PPC_BOOK3S */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_LPPACA_H */

arch/powerpc/include/asm/machdep.h

@@ -102,6 +102,9 @@ struct machdep_calls {
 	void		(*pci_dma_dev_setup)(struct pci_dev *dev);
 	void		(*pci_dma_bus_setup)(struct pci_bus *bus);
 
+	/* Platform set_dma_mask override */
+	int		(*dma_set_mask)(struct device *dev, u64 dma_mask);
+
 	int		(*probe)(void);
 	void		(*setup_arch)(void); /* Optional, may be NULL */
 	void		(*init_early)(void);

arch/powerpc/include/asm/mmu-book3e.h

@@ -114,6 +114,17 @@
 
 #define MAS7_RPN		0xFFFFFFFF
 
+/* Bit definitions for MMUCFG */
+#define MMUCFG_MAVN	0x00000003	/* MMU Architecture Version Number */
+#define MMUCFG_MAVN_V1	0x00000000	/* v1.0 */
+#define MMUCFG_MAVN_V2	0x00000001	/* v2.0 */
+#define MMUCFG_NTLBS	0x0000000c	/* Number of TLBs */
+#define MMUCFG_PIDSIZE	0x000007c0	/* PID Reg Size */
+#define MMUCFG_TWC	0x00008000	/* TLB Write Conditional (v2.0) */
+#define MMUCFG_LRAT	0x00010000	/* LRAT Supported (v2.0) */
+#define MMUCFG_RASIZE	0x00fe0000	/* Real Addr Size */
+#define MMUCFG_LPIDSIZE	0x0f000000	/* LPID Reg Size */
+
 /* Bit definitions for MMUCSR0 */
 #define MMUCSR0_TLB1FI	0x00000002	/* TLB1 Flash invalidate */
 #define MMUCSR0_TLB0FI	0x00000004	/* TLB0 Flash invalidate */
@@ -133,6 +144,10 @@
 #define TLBnCFG_GTWE		0x00010000	/* Guest can write */
 #define TLBnCFG_IND		0x00020000	/* IND entries supported */
 #define TLBnCFG_PT		0x00040000	/* Can load from page table */
+#define TLBnCFG_MINSIZE		0x00f00000	/* Minimum Page Size (v1.0) */
+#define TLBnCFG_MINSIZE_SHIFT	20
+#define TLBnCFG_MAXSIZE		0x000f0000	/* Maximum Page Size (v1.0) */
+#define TLBnCFG_MAXSIZE_SHIFT	16
 #define TLBnCFG_ASSOC		0xff000000	/* Associativity */
 
 /* TLBnPS encoding */

arch/powerpc/include/asm/paca.h

@@ -85,6 +85,8 @@ struct paca_struct {
 	u8 kexec_state;		/* set when kexec down has irqs off */
 #ifdef CONFIG_PPC_STD_MMU_64
 	struct slb_shadow *slb_shadow_ptr;
+	struct dtl_entry *dispatch_log;
+	struct dtl_entry *dispatch_log_end;
 
 	/*
 	 * Now, starting in cacheline 2, the exception save areas
@@ -134,8 +136,14 @@ struct paca_struct {
 	/* Stuff for accurate time accounting */
 	u64 user_time;			/* accumulated usermode TB ticks */
 	u64 system_time;		/* accumulated system TB ticks */
-	u64 startpurr;			/* PURR/TB value snapshot */
+	u64 user_time_scaled;		/* accumulated usermode SPURR ticks */
+	u64 starttime;			/* TB value snapshot */
+	u64 starttime_user;		/* TB value on exit to usermode */
 	u64 startspurr;			/* SPURR value snapshot */
+	u64 utime_sspurr;		/* ->user_time when ->startspurr set */
+	u64 stolen_time;		/* TB ticks taken by hypervisor */
+	u64 dtl_ridx;			/* read index in dispatch log */
+	struct dtl_entry *dtl_curr;	/* pointer corresponding to dtl_ridx */
 
 #ifdef CONFIG_KVM_BOOK3S_HANDLER
 	/* We use this to store guest state in */

arch/powerpc/include/asm/page_64.h

@@ -163,7 +163,7 @@ do {						\
 #endif /* !CONFIG_HUGETLB_PAGE */
 
 #define VM_DATA_DEFAULT_FLAGS \
-	(test_thread_flag(TIF_32BIT) ? \
+	(is_32bit_task() ? \
 	 VM_DATA_DEFAULT_FLAGS32 : VM_DATA_DEFAULT_FLAGS64)
 
 /*
@@ -179,7 +179,7 @@ do {						\
 					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
 #define VM_STACK_DEFAULT_FLAGS \
-	(test_thread_flag(TIF_32BIT) ? \
+	(is_32bit_task() ? \
 	 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
 
 #include <asm-generic/getorder.h>

arch/powerpc/include/asm/ppc-pci.h

@@ -28,8 +28,8 @@ extern void find_and_init_phbs(void);
 extern struct pci_dev *isa_bridge_pcidev;	/* may be NULL if no ISA bus */
 
 /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
-#define BUID_HI(buid) ((buid) >> 32)
-#define BUID_LO(buid) ((buid) & 0xffffffff)
+#define BUID_HI(buid) upper_32_bits(buid)
+#define BUID_LO(buid) lower_32_bits(buid)
 
 /* PCI device_node operations */
 struct device_node;

arch/powerpc/include/asm/ppc_asm.h

@@ -9,6 +9,7 @@
 #include <asm/asm-compat.h>
 #include <asm/processor.h>
 #include <asm/ppc-opcode.h>
+#include <asm/firmware.h>
 
 #ifndef __ASSEMBLY__
 #error __FILE__ should only be used in assembler files
@@ -26,17 +27,13 @@
 #ifndef CONFIG_VIRT_CPU_ACCOUNTING
 #define ACCOUNT_CPU_USER_ENTRY(ra, rb)
 #define ACCOUNT_CPU_USER_EXIT(ra, rb)
+#define ACCOUNT_STOLEN_TIME
 #else
 #define ACCOUNT_CPU_USER_ENTRY(ra, rb)					\
 	beq	2f;			/* if from kernel mode */	\
-BEGIN_FTR_SECTION;							\
-	mfspr	ra,SPRN_PURR;		/* get processor util. reg */	\
-END_FTR_SECTION_IFSET(CPU_FTR_PURR);					\
-BEGIN_FTR_SECTION;							\
-	MFTB(ra);			/* or get TB if no PURR */	\
-END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
-	ld	rb,PACA_STARTPURR(r13);					\
-	std	ra,PACA_STARTPURR(r13);					\
+	MFTB(ra);			/* get timebase */		\
+	ld	rb,PACA_STARTTIME_USER(r13);				\
+	std	ra,PACA_STARTTIME(r13);					\
 	subf	rb,rb,ra;		/* subtract start value */	\
 	ld	ra,PACA_USER_TIME(r13);					\
 	add	ra,ra,rb;		/* add on to user time */	\
@@ -44,19 +41,34 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
 2:
 
 #define ACCOUNT_CPU_USER_EXIT(ra, rb)					\
-BEGIN_FTR_SECTION;							\
-	mfspr	ra,SPRN_PURR;		/* get processor util. reg */	\
-END_FTR_SECTION_IFSET(CPU_FTR_PURR);					\
-BEGIN_FTR_SECTION;							\
-	MFTB(ra);			/* or get TB if no PURR */	\
-END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
-	ld	rb,PACA_STARTPURR(r13);					\
-	std	ra,PACA_STARTPURR(r13);					\
+	MFTB(ra);			/* get timebase */		\
+	ld	rb,PACA_STARTTIME(r13);					\
+	std	ra,PACA_STARTTIME_USER(r13);				\
 	subf	rb,rb,ra;		/* subtract start value */	\
 	ld	ra,PACA_SYSTEM_TIME(r13);				\
-	add	ra,ra,rb;		/* add on to user time */	\
-	std	ra,PACA_SYSTEM_TIME(r13);
-#endif
+	add	ra,ra,rb;		/* add on to system time */	\
+	std	ra,PACA_SYSTEM_TIME(r13)
+
+#ifdef CONFIG_PPC_SPLPAR
+#define ACCOUNT_STOLEN_TIME						\
+BEGIN_FW_FTR_SECTION;							\
+	beq	33f;							\
+	/* from user - see if there are any DTL entries to process */	\
+	ld	r10,PACALPPACAPTR(r13);	/* get ptr to VPA */		\
+	ld	r11,PACA_DTL_RIDX(r13);	/* get log read index */	\
+	ld	r10,LPPACA_DTLIDX(r10);	/* get log write index */	\
+	cmpd	cr1,r11,r10;						\
+	beq+	cr1,33f;						\
+	bl	.accumulate_stolen_time;				\
+33:									\
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
+
+#else  /* CONFIG_PPC_SPLPAR */
+#define ACCOUNT_STOLEN_TIME
+
+#endif /* CONFIG_PPC_SPLPAR */
+
+#endif /* CONFIG_VIRT_CPU_ACCOUNTING */
 
 /*
  * Macros for storing registers into and loading registers from

arch/powerpc/include/asm/processor.h

@@ -118,7 +118,7 @@ extern struct task_struct *last_task_used_spe;
 #define TASK_UNMAPPED_BASE_USER32 (PAGE_ALIGN(TASK_SIZE_USER32 / 4))
 #define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(TASK_SIZE_USER64 / 4))
 
-#define TASK_UNMAPPED_BASE ((test_thread_flag(TIF_32BIT)) ? \
+#define TASK_UNMAPPED_BASE ((is_32bit_task()) ? \
 		TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 )
 #endif
 
@@ -128,7 +128,7 @@ extern struct task_struct *last_task_used_spe;
 #define STACK_TOP_USER64 TASK_SIZE_USER64
 #define STACK_TOP_USER32 TASK_SIZE_USER32
 
-#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
+#define STACK_TOP (is_32bit_task() ? \
 		   STACK_TOP_USER32 : STACK_TOP_USER64)
 
 #define STACK_TOP_MAX STACK_TOP_USER64

arch/powerpc/include/asm/pte-common.h

@@ -171,6 +171,13 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
 /* Make modules code happy. We don't set RO yet */
 #define PAGE_KERNEL_EXEC	PAGE_KERNEL_X
 
+/*
+ * Don't just check for any non zero bits in __PAGE_USER, since for book3e
+ * and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
+ * _PAGE_USER.  Need to explictly match _PAGE_BAP_UR bit in that case too.
+ */
+#define pte_user(val)		((val & _PAGE_USER) == _PAGE_USER)
+
 /* Advertise special mapping type for AGP */
 #define PAGE_AGP		(PAGE_KERNEL_NC)
 #define HAVE_PAGE_AGP

arch/powerpc/include/asm/rtas.h

@@ -187,6 +187,7 @@ extern void rtas_progress(char *s, unsigned short hex);
 extern void rtas_initialize(void);
 extern int rtas_suspend_cpu(struct rtas_suspend_me_data *data);
 extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data);
+extern int rtas_ibm_suspend_me(struct rtas_args *);
 
 struct rtc_time;
 extern unsigned long rtas_get_boot_time(void);

arch/powerpc/include/asm/systbl.h

@@ -329,3 +329,22 @@ COMPAT_SYS(rt_tgsigqueueinfo)
 SYSCALL(fanotify_init)
 COMPAT_SYS(fanotify_mark)
 SYSCALL_SPU(prlimit64)
+SYSCALL_SPU(socket)
+SYSCALL_SPU(bind)
+SYSCALL_SPU(connect)
+SYSCALL_SPU(listen)
+SYSCALL_SPU(accept)
+SYSCALL_SPU(getsockname)
+SYSCALL_SPU(getpeername)
+SYSCALL_SPU(socketpair)
+SYSCALL_SPU(send)
+SYSCALL_SPU(sendto)
+COMPAT_SYS_SPU(recv)
+COMPAT_SYS_SPU(recvfrom)
+SYSCALL_SPU(shutdown)
+COMPAT_SYS_SPU(setsockopt)
+COMPAT_SYS_SPU(getsockopt)
+COMPAT_SYS_SPU(sendmsg)
+COMPAT_SYS_SPU(recvmsg)
+COMPAT_SYS_SPU(recvmmsg)
+SYSCALL_SPU(accept4)

arch/powerpc/include/asm/system.h

@@ -154,8 +154,8 @@ extern void enable_kernel_spe(void);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
 extern int fix_alignment(struct pt_regs *);
-extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
-extern void cvt_df(double *from, float *to, struct thread_struct *thread);
+extern void cvt_fd(float *from, double *to);
+extern void cvt_df(double *from, float *to);
 
 #ifndef CONFIG_SMP
 extern void discard_lazy_cpu_state(void);

arch/powerpc/include/asm/time.h

@@ -34,7 +34,6 @@ extern void to_tm(int tim, struct rtc_time * tm);
 extern void GregorianDay(struct rtc_time *tm);
 
 extern void generic_calibrate_decr(void);
-extern void snapshot_timebase(void);
 
 extern void set_dec_cpu6(unsigned int val);
 
@@ -212,12 +211,8 @@ struct cpu_usage {
 DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array);
 
 #if defined(CONFIG_VIRT_CPU_ACCOUNTING)
-extern void calculate_steal_time(void);
-extern void snapshot_timebases(void);
 #define account_process_vtime(tsk)		account_process_tick(tsk, 0)
 #else
-#define calculate_steal_time()			do { } while (0)
-#define snapshot_timebases()			do { } while (0)
 #define account_process_vtime(tsk)		do { } while (0)
 #endif
 

arch/powerpc/include/asm/unistd.h

@@ -348,10 +348,29 @@
 #define __NR_fanotify_init	323
 #define __NR_fanotify_mark	324
 #define __NR_prlimit64		325
+#define __NR_socket		326
+#define __NR_bind		327
+#define __NR_connect		328
+#define __NR_listen		329
+#define __NR_accept		330
+#define __NR_getsockname	331
+#define __NR_getpeername	332
+#define __NR_socketpair		333
+#define __NR_send		334
+#define __NR_sendto		335
+#define __NR_recv		336
+#define __NR_recvfrom		337
+#define __NR_shutdown		338
+#define __NR_setsockopt		339
+#define __NR_getsockopt		340
+#define __NR_sendmsg		341
+#define __NR_recvmsg		342
+#define __NR_recvmmsg		343
+#define __NR_accept4		344
 
 #ifdef __KERNEL__
 
-#define __NR_syscalls		326
+#define __NR_syscalls		345
 
 #define __NR__exit __NR_exit
 #define NR_syscalls	__NR_syscalls

arch/powerpc/kernel/Makefile

@@ -55,7 +55,9 @@ obj-$(CONFIG_IBMVIO)		+= vio.o
 obj-$(CONFIG_IBMEBUS)           += ibmebus.o
 obj-$(CONFIG_GENERIC_TBSYNC)	+= smp-tbsync.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
+ifeq ($(CONFIG_PPC32),y)
 obj-$(CONFIG_E500)		+= idle_e500.o
+endif
 obj-$(CONFIG_6xx)		+= idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
 obj-$(CONFIG_TAU)		+= tau_6xx.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o suspend.o
@@ -67,7 +69,7 @@ endif
 obj64-$(CONFIG_HIBERNATION)	+= swsusp_asm64.o
 obj-$(CONFIG_MODULES)		+= module.o module_$(CONFIG_WORD_SIZE).o
 obj-$(CONFIG_44x)		+= cpu_setup_44x.o
-obj-$(CONFIG_FSL_BOOKE)		+= cpu_setup_fsl_booke.o dbell.o
+obj-$(CONFIG_PPC_FSL_BOOK3E)	+= cpu_setup_fsl_booke.o dbell.o
 obj-$(CONFIG_PPC_BOOK3E_64)	+= dbell.o
 
 extra-y				:= head_$(CONFIG_WORD_SIZE).o

arch/powerpc/kernel/align.c

@@ -889,7 +889,7 @@ int fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
 			preempt_disable();
 			enable_kernel_fp();
-			cvt_df(&data.dd, (float *)&data.v[4], &current->thread);
+			cvt_df(&data.dd, (float *)&data.v[4]);
 			preempt_enable();
 #else
 			return 0;
@@ -933,7 +933,7 @@ int fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
 		preempt_disable();
 		enable_kernel_fp();
-		cvt_fd((float *)&data.v[4], &data.dd, &current->thread);
+		cvt_fd((float *)&data.v[4], &data.dd);
 		preempt_enable();
 #else
 		return 0;

arch/powerpc/kernel/asm-offsets.c

@@ -61,7 +61,7 @@
 #endif
 #endif
 
-#if defined(CONFIG_FSL_BOOKE)
+#if defined(CONFIG_PPC_FSL_BOOK3E)
 #include "../mm/mmu_decl.h"
 #endif
 
@@ -181,17 +181,19 @@ int main(void)
 	       offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].vsid));
 	DEFINE(SLBSHADOW_STACKESID,
 	       offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].esid));
+	DEFINE(SLBSHADOW_SAVEAREA, offsetof(struct slb_shadow, save_area));
 	DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
 	DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
 	DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
 	DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
-	DEFINE(SLBSHADOW_SAVEAREA, offsetof(struct slb_shadow, save_area));
+	DEFINE(LPPACA_DTLIDX, offsetof(struct lppaca, dtl_idx));
+	DEFINE(PACA_DTL_RIDX, offsetof(struct paca_struct, dtl_ridx));
 #endif /* CONFIG_PPC_STD_MMU_64 */
 	DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
 	DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
 	DEFINE(PACAKEXECSTATE, offsetof(struct paca_struct, kexec_state));
-	DEFINE(PACA_STARTPURR, offsetof(struct paca_struct, startpurr));
-	DEFINE(PACA_STARTSPURR, offsetof(struct paca_struct, startspurr));
+	DEFINE(PACA_STARTTIME, offsetof(struct paca_struct, starttime));
+	DEFINE(PACA_STARTTIME_USER, offsetof(struct paca_struct, starttime_user));
 	DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time));
 	DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time));
 	DEFINE(PACA_TRAP_SAVE, offsetof(struct paca_struct, trap_save));
@@ -468,7 +470,7 @@ int main(void)
 	DEFINE(PGD_T_LOG2, PGD_T_LOG2);
 	DEFINE(PTE_T_LOG2, PTE_T_LOG2);
 #endif
-#ifdef CONFIG_FSL_BOOKE
+#ifdef CONFIG_PPC_FSL_BOOK3E
 	DEFINE(TLBCAM_SIZE, sizeof(struct tlbcam));
 	DEFINE(TLBCAM_MAS0, offsetof(struct tlbcam, MAS0));
 	DEFINE(TLBCAM_MAS1, offsetof(struct tlbcam, MAS1));

arch/powerpc/kernel/cpu_setup_44x.S

@@ -35,6 +35,7 @@ _GLOBAL(__setup_cpu_440grx)
 _GLOBAL(__setup_cpu_460ex)
 _GLOBAL(__setup_cpu_460gt)
 _GLOBAL(__setup_cpu_460sx)
+_GLOBAL(__setup_cpu_apm821xx)
 	mflr	r4
 	bl	__init_fpu_44x
 	bl	__fixup_440A_mcheck

arch/powerpc/kernel/cpu_setup_fsl_booke.S

@@ -51,6 +51,7 @@ _GLOBAL(__e500_dcache_setup)
 	isync
 	blr
 
+#ifdef CONFIG_PPC32
 _GLOBAL(__setup_cpu_e200)
 	/* enable dedicated debug exception handling resources (Debug APU) */
 	mfspr	r3,SPRN_HID0
@@ -72,3 +73,17 @@ _GLOBAL(__setup_cpu_e500mc)
 	bl	__setup_e500mc_ivors
 	mtlr	r4
 	blr
+#endif
+/* Right now, restore and setup are the same thing */
+_GLOBAL(__restore_cpu_e5500)
+_GLOBAL(__setup_cpu_e5500)
+	mflr	r4
+	bl	__e500_icache_setup
+	bl	__e500_dcache_setup
+#ifdef CONFIG_PPC_BOOK3E_64
+	bl	.__setup_base_ivors
+#else
+	bl	__setup_e500mc_ivors
+#endif
+	mtlr	r4
+	blr

arch/powerpc/kernel/cputable.c

@@ -48,6 +48,7 @@ extern void __setup_cpu_440x5(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460ex(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460gt(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460sx(unsigned long offset, struct cpu_spec *spec);
+extern void __setup_cpu_apm821xx(unsigned long offset, struct cpu_spec *spec);
 extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
@@ -66,6 +67,10 @@ extern void __restore_cpu_ppc970(void);
 extern void __setup_cpu_power7(unsigned long offset, struct cpu_spec* spec);
 extern void __restore_cpu_power7(void);
 #endif /* CONFIG_PPC64 */
+#if defined(CONFIG_E500)
+extern void __setup_cpu_e5500(unsigned long offset, struct cpu_spec* spec);
+extern void __restore_cpu_e5500(void);
+#endif /* CONFIG_E500 */
 
 /* This table only contains "desktop" CPUs, it need to be filled with embedded
  * ones as well...
@@ -1805,6 +1810,20 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_440A,
 		.platform		= "ppc440",
 	},
+	{ /* 464 in APM821xx */
+		.pvr_mask		= 0xffffff00,
+		.pvr_value		= 0x12C41C80,
+		.cpu_name		= "APM821XX",
+		.cpu_features		= CPU_FTRS_44X,
+		.cpu_user_features	= COMMON_USER_BOOKE |
+			PPC_FEATURE_HAS_FPU,
+		.mmu_features		= MMU_FTR_TYPE_44x,
+		.icache_bsize		= 32,
+		.dcache_bsize		= 32,
+		.cpu_setup		= __setup_cpu_apm821xx,
+		.machine_check		= machine_check_440A,
+		.platform		= "ppc440",
+	},
 	{ /* 476 core */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x11a50000,
@@ -1891,7 +1910,9 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.platform		= "ppc5554",
 	}
 #endif /* CONFIG_E200 */
+#endif /* CONFIG_PPC32 */
 #ifdef CONFIG_E500
+#ifdef CONFIG_PPC32
 	{	/* e500 */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x80200000,
@@ -1946,6 +1967,26 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_e500mc,
 		.platform		= "ppce500mc",
 	},
+#endif /* CONFIG_PPC32 */
+	{	/* e5500 */
+		.pvr_mask		= 0xffff0000,
+		.pvr_value		= 0x80240000,
+		.cpu_name		= "e5500",
+		.cpu_features		= CPU_FTRS_E500MC,
+		.cpu_user_features	= COMMON_USER_BOOKE,
+		.mmu_features		= MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS |
+			MMU_FTR_USE_TLBILX,
+		.icache_bsize		= 64,
+		.dcache_bsize		= 64,
+		.num_pmcs		= 4,
+		.oprofile_cpu_type	= "ppc/e500mc",
+		.oprofile_type		= PPC_OPROFILE_FSL_EMB,
+		.cpu_setup		= __setup_cpu_e5500,
+		.cpu_restore		= __restore_cpu_e5500,
+		.machine_check		= machine_check_e500mc,
+		.platform		= "ppce5500",
+	},
+#ifdef CONFIG_PPC32
 	{	/* default match */
 		.pvr_mask		= 0x00000000,
 		.pvr_value		= 0x00000000,
@@ -1960,8 +2001,8 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_e500,
 		.platform		= "powerpc",
 	}
-#endif /* CONFIG_E500 */
 #endif /* CONFIG_PPC32 */
+#endif /* CONFIG_E500 */
 
 #ifdef CONFIG_PPC_BOOK3E_64
 	{	/* This is a default entry to get going, to be replaced by

arch/powerpc/kernel/crash.c

@@ -414,18 +414,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 	crash_kexec_wait_realmode(crashing_cpu);
 #endif
 
-	for_each_irq(i) {
-		struct irq_desc *desc = irq_to_desc(i);
-
-		if (!desc || !desc->chip || !desc->chip->eoi)
-			continue;
-
-		if (desc->status & IRQ_INPROGRESS)
-			desc->chip->eoi(i);
-
-		if (!(desc->status & IRQ_DISABLED))
-			desc->chip->shutdown(i);
-	}
+	machine_kexec_mask_interrupts();
 
 	/*
 	 * Call registered shutdown routines savely.  Swap out

arch/powerpc/kernel/dma-iommu.c

@@ -74,16 +74,17 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
 {
 	struct iommu_table *tbl = get_iommu_table_base(dev);
 
-	if (!tbl || tbl->it_offset > mask) {
-		printk(KERN_INFO
-		       "Warning: IOMMU offset too big for device mask\n");
-		if (tbl)
-			printk(KERN_INFO
-			       "mask: 0x%08llx, table offset: 0x%08lx\n",
-				mask, tbl->it_offset);
-		else
-			printk(KERN_INFO "mask: 0x%08llx, table unavailable\n",
-				mask);
+	if (!tbl) {
+		dev_info(dev, "Warning: IOMMU dma not supported: mask 0x%08llx"
+			", table unavailable\n", mask);
+		return 0;
+	}
+
+	if ((tbl->it_offset + tbl->it_size) > (mask >> IOMMU_PAGE_SHIFT)) {
+		dev_info(dev, "Warning: IOMMU window too big for device mask\n");
+		dev_info(dev, "mask: 0x%08llx, table end: 0x%08lx\n",
+				mask, (tbl->it_offset + tbl->it_size) <<
+				IOMMU_PAGE_SHIFT);
 		return 0;
 	} else
 		return 1;

arch/powerpc/kernel/dma.c

@@ -12,6 +12,7 @@
 #include <linux/memblock.h>
 #include <asm/bug.h>
 #include <asm/abs_addr.h>
+#include <asm/machdep.h>
 
 /*
  * Generic direct DMA implementation
@@ -89,7 +90,7 @@ static int dma_direct_dma_supported(struct device *dev, u64 mask)
 	/* Could be improved so platforms can set the limit in case
 	 * they have limited DMA windows
 	 */
-	return mask >= (memblock_end_of_DRAM() - 1);
+	return mask >= get_dma_offset(dev) + (memblock_end_of_DRAM() - 1);
 #else
 	return 1;
 #endif
@@ -154,6 +155,23 @@ EXPORT_SYMBOL(dma_direct_ops);
 
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
 
+int dma_set_mask(struct device *dev, u64 dma_mask)
+{
+	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+
+	if (ppc_md.dma_set_mask)
+		return ppc_md.dma_set_mask(dev, dma_mask);
+	if (unlikely(dma_ops == NULL))
+		return -EIO;
+	if (dma_ops->set_dma_mask != NULL)
+		return dma_ops->set_dma_mask(dev, dma_mask);
+	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
+		return -EIO;
+	*dev->dma_mask = dma_mask;
+	return 0;
+}
+EXPORT_SYMBOL(dma_set_mask);
+
 static int __init dma_init(void)
 {
        dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);

arch/powerpc/kernel/entry_64.S

@@ -97,6 +97,24 @@ system_call_common:
 	addi	r9,r1,STACK_FRAME_OVERHEAD
 	ld	r11,exception_marker@toc(r2)
 	std	r11,-16(r9)		/* "regshere" marker */
+#if defined(CONFIG_VIRT_CPU_ACCOUNTING) && defined(CONFIG_PPC_SPLPAR)
+BEGIN_FW_FTR_SECTION
+	beq	33f
+	/* if from user, see if there are any DTL entries to process */
+	ld	r10,PACALPPACAPTR(r13)	/* get ptr to VPA */
+	ld	r11,PACA_DTL_RIDX(r13)	/* get log read index */
+	ld	r10,LPPACA_DTLIDX(r10)	/* get log write index */
+	cmpd	cr1,r11,r10
+	beq+	cr1,33f
+	bl	.accumulate_stolen_time
+	REST_GPR(0,r1)
+	REST_4GPRS(3,r1)
+	REST_2GPRS(7,r1)
+	addi	r9,r1,STACK_FRAME_OVERHEAD
+33:
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
+#endif /* CONFIG_VIRT_CPU_ACCOUNTING && CONFIG_PPC_SPLPAR */
+
 #ifdef CONFIG_TRACE_IRQFLAGS
 	bl	.trace_hardirqs_on
 	REST_GPR(0,r1)
@@ -202,7 +220,9 @@ syscall_exit:
 	bge-	syscall_error
 syscall_error_cont:
 	ld	r7,_NIP(r1)
+BEGIN_FTR_SECTION
 	stdcx.	r0,0,r1			/* to clear the reservation */
+END_FTR_SECTION_IFCLR(CPU_FTR_STCX_CHECKS_ADDRESS)
 	andi.	r6,r8,MSR_PR
 	ld	r4,_LINK(r1)
 	/*
@@ -419,6 +439,17 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	sync
 #endif /* CONFIG_SMP */
 
+	/*
+	 * If we optimise away the clear of the reservation in system
+	 * calls because we know the CPU tracks the address of the
+	 * reservation, then we need to clear it here to cover the
+	 * case that the kernel context switch path has no larx
+	 * instructions.
+	 */
+BEGIN_FTR_SECTION
+	ldarx	r6,0,r1
+END_FTR_SECTION_IFSET(CPU_FTR_STCX_CHECKS_ADDRESS)
+
 	addi	r6,r4,-THREAD	/* Convert THREAD to 'current' */
 	std	r6,PACACURRENT(r13)	/* Set new 'current' */
 
@@ -576,7 +607,16 @@ ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
 	andi.	r0,r3,MSR_RI
 	beq-	unrecov_restore
 
+	/*
+	 * Clear the reservation. If we know the CPU tracks the address of
+	 * the reservation then we can potentially save some cycles and use
+	 * a larx. On POWER6 and POWER7 this is significantly faster.
+	 */
+BEGIN_FTR_SECTION
 	stdcx.	r0,0,r1		/* to clear the reservation */
+FTR_SECTION_ELSE
+	ldarx	r4,0,r1
+ALT_FTR_SECTION_END_IFCLR(CPU_FTR_STCX_CHECKS_ADDRESS)
 
 	/*
 	 * Clear RI before restoring r13.  If we are returning to

arch/powerpc/kernel/fpu.S

@@ -163,24 +163,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 /*
  * These are used in the alignment trap handler when emulating
  * single-precision loads and stores.
- * We restore and save the fpscr so the task gets the same result
- * and exceptions as if the cpu had performed the load or store.
  */
 
 _GLOBAL(cvt_fd)
-	lfd	0,THREAD_FPSCR(r5)	/* load up fpscr value */
-	MTFSF_L(0)
 	lfs	0,0(r3)
 	stfd	0,0(r4)
-	mffs	0
-	stfd	0,THREAD_FPSCR(r5)	/* save new fpscr value */
 	blr
 
 _GLOBAL(cvt_df)
-	lfd	0,THREAD_FPSCR(r5)	/* load up fpscr value */
-	MTFSF_L(0)
 	lfd	0,0(r3)
 	stfs	0,0(r4)
-	mffs	0
-	stfd	0,THREAD_FPSCR(r5)	/* save new fpscr value */
 	blr

arch/powerpc/kernel/head_fsl_booke.S

@@ -152,8 +152,11 @@ _ENTRY(__early_start)
 	/* Check to see if we're the second processor, and jump
 	 * to the secondary_start code if so
 	 */
-	mfspr	r24,SPRN_PIR
-	cmpwi	r24,0
+	lis	r24, boot_cpuid@h
+	ori	r24, r24, boot_cpuid@l
+	lwz	r24, 0(r24)
+	cmpwi	r24, -1
+	mfspr   r24,SPRN_PIR
 	bne	__secondary_start
 #endif
 
@@ -175,6 +178,9 @@ _ENTRY(__early_start)
 	li	r0,0
 	stwu	r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
 
+	rlwinm  r22,r1,0,0,31-THREAD_SHIFT      /* current thread_info */
+	stw	r24, TI_CPU(r22)
+
 	bl	early_init
 
 #ifdef CONFIG_RELOCATABLE

arch/powerpc/kernel/irq.c

@@ -587,8 +587,10 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
 			 * this will be fixed once slab is made available early
 			 * instead of the current cruft
 			 */
-			if (mem_init_done)
+			if (mem_init_done) {
+				of_node_put(host->of_node);
 				kfree(host);
+			}
 			return NULL;
 		}
 		irq_map[0].host = host;
@@ -1143,7 +1145,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
 	unsigned long flags;
 	struct irq_desc *desc;
 	const char *p;
-	char none[] = "none";
+	static const char none[] = "none";
 	int i;
 
 	seq_printf(m, "%-5s  %-7s  %-15s  %s\n", "virq", "hwirq",

arch/powerpc/kernel/lparcfg.c

@@ -56,7 +56,7 @@ static unsigned long get_purr(void)
 
 	for_each_possible_cpu(cpu) {
 		if (firmware_has_feature(FW_FEATURE_ISERIES))
-			sum_purr += lppaca[cpu].emulated_time_base;
+			sum_purr += lppaca_of(cpu).emulated_time_base;
 		else {
 			struct cpu_usage *cu;
 
@@ -263,7 +263,7 @@ static void parse_ppp_data(struct seq_file *m)
 	           ppp_data.active_system_procs);
 
 	/* pool related entries are apropriate for shared configs */
-	if (lppaca[0].shared_proc) {
+	if (lppaca_of(0).shared_proc) {
 		unsigned long pool_idle_time, pool_procs;
 
 		seq_printf(m, "pool=%d\n", ppp_data.pool_num);
@@ -460,8 +460,8 @@ static void pseries_cmo_data(struct seq_file *m)
 		return;
 
 	for_each_possible_cpu(cpu) {
-		cmo_faults += lppaca[cpu].cmo_faults;
-		cmo_fault_time += lppaca[cpu].cmo_fault_time;
+		cmo_faults += lppaca_of(cpu).cmo_faults;
+		cmo_fault_time += lppaca_of(cpu).cmo_fault_time;
 	}
 
 	seq_printf(m, "cmo_faults=%lu\n", cmo_faults);
@@ -479,8 +479,8 @@ static void splpar_dispatch_data(struct seq_file *m)
 	unsigned long dispatch_dispersions = 0;
 
 	for_each_possible_cpu(cpu) {
-		dispatches += lppaca[cpu].yield_count;
-		dispatch_dispersions += lppaca[cpu].dispersion_count;
+		dispatches += lppaca_of(cpu).yield_count;
+		dispatch_dispersions += lppaca_of(cpu).dispersion_count;
 	}
 
 	seq_printf(m, "dispatches=%lu\n", dispatches);
@@ -545,7 +545,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v)
 	seq_printf(m, "partition_potential_processors=%d\n",
 		   partition_potential_processors);
 
-	seq_printf(m, "shared_processor_mode=%d\n", lppaca[0].shared_proc);
+	seq_printf(m, "shared_processor_mode=%d\n", lppaca_of(0).shared_proc);
 
 	seq_printf(m, "slb_size=%d\n", mmu_slb_size);
 

arch/powerpc/kernel/machine_kexec.c

@@ -14,10 +14,34 @@
 #include <linux/threads.h>
 #include <linux/memblock.h>
 #include <linux/of.h>
+#include <linux/irq.h>
+
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/sections.h>
 
+void machine_kexec_mask_interrupts(void) {
+	unsigned int i;
+
+	for_each_irq(i) {
+		struct irq_desc *desc = irq_to_desc(i);
+
+		if (!desc || !desc->chip)
+			continue;
+
+		if (desc->chip->eoi &&
+		    desc->status & IRQ_INPROGRESS)
+			desc->chip->eoi(i);
+
+		if (desc->chip->mask)
+			desc->chip->mask(i);
+
+		if (desc->chip->disable &&
+		    !(desc->status & IRQ_DISABLED))
+			desc->chip->disable(i);
+	}
+}
+
 void machine_crash_shutdown(struct pt_regs *regs)
 {
 	if (ppc_md.machine_crash_shutdown)

arch/powerpc/kernel/machine_kexec_32.c

@@ -39,6 +39,10 @@ void default_machine_kexec(struct kimage *image)
 	/* Interrupts aren't acceptable while we reboot */
 	local_irq_disable();
 
+	/* mask each interrupt so we are in a more sane state for the
+	 * kexec kernel */
+	machine_kexec_mask_interrupts();
+
 	page_list = image->head;
 
 	/* we need both effective and real address here */

arch/powerpc/kernel/paca.c

@@ -26,6 +26,20 @@ extern unsigned long __toc_start;
 
 #ifdef CONFIG_PPC_BOOK3S
 
+/*
+ * We only have to have statically allocated lppaca structs on
+ * legacy iSeries, which supports at most 64 cpus.
+ */
+#ifdef CONFIG_PPC_ISERIES
+#if NR_CPUS < 64
+#define NR_LPPACAS	NR_CPUS
+#else
+#define NR_LPPACAS	64
+#endif
+#else /* not iSeries */
+#define NR_LPPACAS	1
+#endif
+
 /*
  * The structure which the hypervisor knows about - this structure
  * should not cross a page boundary.  The vpa_init/register_vpa call
@@ -36,7 +50,7 @@ extern unsigned long __toc_start;
  * will suffice to ensure that it doesn't cross a page boundary.
  */
 struct lppaca lppaca[] = {
-	[0 ... (NR_CPUS-1)] = {
+	[0 ... (NR_LPPACAS-1)] = {
 		.desc = 0xd397d781,	/* "LpPa" */
 		.size = sizeof(struct lppaca),
 		.dyn_proc_status = 2,
@@ -49,6 +63,54 @@ struct lppaca lppaca[] = {
 	},
 };
 
+static struct lppaca *extra_lppacas;
+static long __initdata lppaca_size;
+
+static void allocate_lppacas(int nr_cpus, unsigned long limit)
+{
+	if (nr_cpus <= NR_LPPACAS)
+		return;
+
+	lppaca_size = PAGE_ALIGN(sizeof(struct lppaca) *
+				 (nr_cpus - NR_LPPACAS));
+	extra_lppacas = __va(memblock_alloc_base(lppaca_size,
+						 PAGE_SIZE, limit));
+}
+
+static struct lppaca *new_lppaca(int cpu)
+{
+	struct lppaca *lp;
+
+	if (cpu < NR_LPPACAS)
+		return &lppaca[cpu];
+
+	lp = extra_lppacas + (cpu - NR_LPPACAS);
+	*lp = lppaca[0];
+
+	return lp;
+}
+
+static void free_lppacas(void)
+{
+	long new_size = 0, nr;
+
+	if (!lppaca_size)
+		return;
+	nr = num_possible_cpus() - NR_LPPACAS;
+	if (nr > 0)
+		new_size = PAGE_ALIGN(nr * sizeof(struct lppaca));
+	if (new_size >= lppaca_size)
+		return;
+
+	memblock_free(__pa(extra_lppacas) + new_size, lppaca_size - new_size);
+	lppaca_size = new_size;
+}
+
+#else
+
+static inline void allocate_lppacas(int nr_cpus, unsigned long limit) { }
+static inline void free_lppacas(void) { }
+
 #endif /* CONFIG_PPC_BOOK3S */
 
 #ifdef CONFIG_PPC_STD_MMU_64
@@ -88,7 +150,7 @@ void __init initialise_paca(struct paca_struct *new_paca, int cpu)
 	unsigned long kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL;
 
 #ifdef CONFIG_PPC_BOOK3S
-	new_paca->lppaca_ptr = &lppaca[cpu];
+	new_paca->lppaca_ptr = new_lppaca(cpu);
 #else
 	new_paca->kernel_pgd = swapper_pg_dir;
 #endif
@@ -144,6 +206,8 @@ void __init allocate_pacas(void)
 	printk(KERN_DEBUG "Allocated %u bytes for %d pacas at %p\n",
 		paca_size, nr_cpus, paca);
 
+	allocate_lppacas(nr_cpus, limit);
+
 	/* Can't use for_each_*_cpu, as they aren't functional yet */
 	for (cpu = 0; cpu < nr_cpus; cpu++)
 		initialise_paca(&paca[cpu], cpu);
@@ -164,4 +228,6 @@ void __init free_unused_pacas(void)
 		paca_size - new_size);
 
 	paca_size = new_size;
+
+	free_lppacas();
 }

arch/powerpc/kernel/pci-common.c

@@ -1090,8 +1090,6 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus)
 		 bus->number, bus->self ? pci_name(bus->self) : "PHB");
 
 	list_for_each_entry(dev, &bus->devices, bus_list) {
-		struct dev_archdata *sd = &dev->dev.archdata;
-
 		/* Cardbus can call us to add new devices to a bus, so ignore
 		 * those who are already fully discovered
 		 */
@@ -1107,7 +1105,7 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus)
 		set_dev_node(&dev->dev, pcibus_to_node(dev->bus));
 
 		/* Hook up default DMA ops */
-		sd->dma_ops = pci_dma_ops;
+		set_dma_ops(&dev->dev, pci_dma_ops);
 		set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
 
 		/* Additional platform DMA/iommu setup */

arch/powerpc/kernel/ppc970-pmu.c

@@ -169,9 +169,11 @@ static int p970_marked_instr_event(u64 event)
 	switch (unit) {
 	case PM_VPU:
 		mask = 0x4c;		/* byte 0 bits 2,3,6 */
+		break;
 	case PM_LSU0:
 		/* byte 2 bits 0,2,3,4,6; all of byte 1 */
 		mask = 0x085dff00;
+		break;
 	case PM_LSU1L:
 		mask = 0x50 << 24;	/* byte 3 bits 4,6 */
 		break;

arch/powerpc/kernel/process.c

@@ -517,7 +517,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
 
 	account_system_vtime(current);
 	account_process_vtime(current);
-	calculate_steal_time();
 
 	/*
 	 * We can't take a PMU exception inside _switch() since there is a
@@ -1298,14 +1297,3 @@ unsigned long randomize_et_dyn(unsigned long base)
 
 	return ret;
 }
-
-#ifdef CONFIG_SMP
-int arch_sd_sibling_asym_packing(void)
-{
-	if (cpu_has_feature(CPU_FTR_ASYM_SMT)) {
-		printk_once(KERN_INFO "Enabling Asymmetric SMT scheduling\n");
-		return SD_ASYM_PACKING;
-	}
-	return 0;
-}
-#endif

arch/powerpc/kernel/ptrace.c

@@ -1681,7 +1681,7 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 
 	if (unlikely(current->audit_context)) {
 #ifdef CONFIG_PPC64
-		if (!test_thread_flag(TIF_32BIT))
+		if (!is_32bit_task())
 			audit_syscall_entry(AUDIT_ARCH_PPC64,
 					    regs->gpr[0],
 					    regs->gpr[3], regs->gpr[4],

arch/powerpc/kernel/rtas.c

@@ -805,7 +805,7 @@ static void rtas_percpu_suspend_me(void *info)
 	__rtas_suspend_cpu((struct rtas_suspend_me_data *)info, 1);
 }
 
-static int rtas_ibm_suspend_me(struct rtas_args *args)
+int rtas_ibm_suspend_me(struct rtas_args *args)
 {
 	long state;
 	long rc;
@@ -855,7 +855,7 @@ static int rtas_ibm_suspend_me(struct rtas_args *args)
 	return atomic_read(&data.error);
 }
 #else /* CONFIG_PPC_PSERIES */
-static int rtas_ibm_suspend_me(struct rtas_args *args)
+int rtas_ibm_suspend_me(struct rtas_args *args)
 {
 	return -ENOSYS;
 }

arch/powerpc/kernel/setup_32.c

@@ -46,7 +46,7 @@
 
 extern void bootx_init(unsigned long r4, unsigned long phys);
 
-int boot_cpuid;
+int boot_cpuid = -1;
 EXPORT_SYMBOL_GPL(boot_cpuid);
 int boot_cpuid_phys;
 

arch/powerpc/kernel/smp.c

@@ -508,9 +508,6 @@ int __devinit start_secondary(void *unused)
 	if (smp_ops->take_timebase)
 		smp_ops->take_timebase();
 
-	if (system_state > SYSTEM_BOOTING)
-		snapshot_timebase();
-
 	secondary_cpu_time_init();
 
 	ipi_call_lock();
@@ -575,11 +572,18 @@ void __init smp_cpus_done(unsigned int max_cpus)
 
 	free_cpumask_var(old_mask);
 
-	snapshot_timebases();
-
 	dump_numa_cpu_topology();
 }
 
+int arch_sd_sibling_asym_packing(void)
+{
+	if (cpu_has_feature(CPU_FTR_ASYM_SMT)) {
+		printk_once(KERN_INFO "Enabling Asymmetric SMT scheduling\n");
+		return SD_ASYM_PACKING;
+	}
+	return 0;
+}
+
 #ifdef CONFIG_HOTPLUG_CPU
 int __cpu_disable(void)
 {

arch/powerpc/kernel/time.c

@@ -161,10 +161,9 @@ extern struct timezone sys_tz;
 static long timezone_offset;
 
 unsigned long ppc_proc_freq;
-EXPORT_SYMBOL(ppc_proc_freq);
+EXPORT_SYMBOL_GPL(ppc_proc_freq);
 unsigned long ppc_tb_freq;
-
-static DEFINE_PER_CPU(u64, last_jiffy);
+EXPORT_SYMBOL_GPL(ppc_tb_freq);
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 /*
@@ -185,6 +184,8 @@ DEFINE_PER_CPU(unsigned long, cputime_scaled_last_delta);
 
 cputime_t cputime_one_jiffy;
 
+void (*dtl_consumer)(struct dtl_entry *, u64);
+
 static void calc_cputime_factors(void)
 {
 	struct div_result res;
@@ -200,62 +201,153 @@ static void calc_cputime_factors(void)
 }
 
 /*
- * Read the PURR on systems that have it, otherwise the timebase.
+ * Read the SPURR on systems that have it, otherwise the PURR,
+ * or if that doesn't exist return the timebase value passed in.
  */
-static u64 read_purr(void)
+static u64 read_spurr(u64 tb)
 {
+	if (cpu_has_feature(CPU_FTR_SPURR))
+		return mfspr(SPRN_SPURR);
 	if (cpu_has_feature(CPU_FTR_PURR))
 		return mfspr(SPRN_PURR);
-	return mftb();
+	return tb;
 }
 
+#ifdef CONFIG_PPC_SPLPAR
+
 /*
- * Read the SPURR on systems that have it, otherwise the purr
+ * Scan the dispatch trace log and count up the stolen time.
+ * Should be called with interrupts disabled.
  */
-static u64 read_spurr(u64 purr)
+static u64 scan_dispatch_log(u64 stop_tb)
 {
-	/*
-	 * cpus without PURR won't have a SPURR
-	 * We already know the former when we use this, so tell gcc
-	 */
-	if (cpu_has_feature(CPU_FTR_PURR) && cpu_has_feature(CPU_FTR_SPURR))
-		return mfspr(SPRN_SPURR);
-	return purr;
+	u64 i = local_paca->dtl_ridx;
+	struct dtl_entry *dtl = local_paca->dtl_curr;
+	struct dtl_entry *dtl_end = local_paca->dispatch_log_end;
+	struct lppaca *vpa = local_paca->lppaca_ptr;
+	u64 tb_delta;
+	u64 stolen = 0;
+	u64 dtb;
+
+	if (i == vpa->dtl_idx)
+		return 0;
+	while (i < vpa->dtl_idx) {
+		if (dtl_consumer)
+			dtl_consumer(dtl, i);
+		dtb = dtl->timebase;
+		tb_delta = dtl->enqueue_to_dispatch_time +
+			dtl->ready_to_enqueue_time;
+		barrier();
+		if (i + N_DISPATCH_LOG < vpa->dtl_idx) {
+			/* buffer has overflowed */
+			i = vpa->dtl_idx - N_DISPATCH_LOG;
+			dtl = local_paca->dispatch_log + (i % N_DISPATCH_LOG);
+			continue;
+		}
+		if (dtb > stop_tb)
+			break;
+		stolen += tb_delta;
+		++i;
+		++dtl;
+		if (dtl == dtl_end)
+			dtl = local_paca->dispatch_log;
+	}
+	local_paca->dtl_ridx = i;
+	local_paca->dtl_curr = dtl;
+	return stolen;
 }
 
+/*
+ * Accumulate stolen time by scanning the dispatch trace log.
+ * Called on entry from user mode.
+ */
+void accumulate_stolen_time(void)
+{
+	u64 sst, ust;
+
+	sst = scan_dispatch_log(get_paca()->starttime_user);
+	ust = scan_dispatch_log(get_paca()->starttime);
+	get_paca()->system_time -= sst;
+	get_paca()->user_time -= ust;
+	get_paca()->stolen_time += ust + sst;
+}
+
+static inline u64 calculate_stolen_time(u64 stop_tb)
+{
+	u64 stolen = 0;
+
+	if (get_paca()->dtl_ridx != get_paca()->lppaca_ptr->dtl_idx) {
+		stolen = scan_dispatch_log(stop_tb);
+		get_paca()->system_time -= stolen;
+	}
+
+	stolen += get_paca()->stolen_time;
+	get_paca()->stolen_time = 0;
+	return stolen;
+}
+
+#else /* CONFIG_PPC_SPLPAR */
+static inline u64 calculate_stolen_time(u64 stop_tb)
+{
+	return 0;
+}
+
+#endif /* CONFIG_PPC_SPLPAR */
+
 /*
  * Account time for a transition between system, hard irq
  * or soft irq state.
  */
 void account_system_vtime(struct task_struct *tsk)
 {
-	u64 now, nowscaled, delta, deltascaled, sys_time;
+	u64 now, nowscaled, delta, deltascaled;
 	unsigned long flags;
+	u64 stolen, udelta, sys_scaled, user_scaled;
 
 	local_irq_save(flags);
-	now = read_purr();
+	now = mftb();
 	nowscaled = read_spurr(now);
-	delta = now - get_paca()->startpurr;
+	get_paca()->system_time += now - get_paca()->starttime;
+	get_paca()->starttime = now;
 	deltascaled = nowscaled - get_paca()->startspurr;
-	get_paca()->startpurr = now;
 	get_paca()->startspurr = nowscaled;
-	if (!in_interrupt()) {
-		/* deltascaled includes both user and system time.
-		 * Hence scale it based on the purr ratio to estimate
-		 * the system time */
-		sys_time = get_paca()->system_time;
-		if (get_paca()->user_time)
-			deltascaled = deltascaled * sys_time /
-			     (sys_time + get_paca()->user_time);
-		delta += sys_time;
-		get_paca()->system_time = 0;
+
+	stolen = calculate_stolen_time(now);
+
+	delta = get_paca()->system_time;
+	get_paca()->system_time = 0;
+	udelta = get_paca()->user_time - get_paca()->utime_sspurr;
+	get_paca()->utime_sspurr = get_paca()->user_time;
+
+	/*
+	 * Because we don't read the SPURR on every kernel entry/exit,
+	 * deltascaled includes both user and system SPURR ticks.
+	 * Apportion these ticks to system SPURR ticks and user
+	 * SPURR ticks in the same ratio as the system time (delta)
+	 * and user time (udelta) values obtained from the timebase
+	 * over the same interval.  The system ticks get accounted here;
+	 * the user ticks get saved up in paca->user_time_scaled to be
+	 * used by account_process_tick.
+	 */
+	sys_scaled = delta;
+	user_scaled = udelta;
+	if (deltascaled != delta + udelta) {
+		if (udelta) {
+			sys_scaled = deltascaled * delta / (delta + udelta);
+			user_scaled = deltascaled - sys_scaled;
+		} else {
+			sys_scaled = deltascaled;
+		}
+	}
+	get_paca()->user_time_scaled += user_scaled;
+
+	if (in_irq() || idle_task(smp_processor_id()) != tsk) {
+		account_system_time(tsk, 0, delta, sys_scaled);
+		if (stolen)
+			account_steal_time(stolen);
+	} else {
+		account_idle_time(delta + stolen);
 	}
-	if (in_irq() || idle_task(smp_processor_id()) != tsk)
-		account_system_time(tsk, 0, delta, deltascaled);
-	else
-		account_idle_time(delta);
-	__get_cpu_var(cputime_last_delta) = delta;
-	__get_cpu_var(cputime_scaled_last_delta) = deltascaled;
 	local_irq_restore(flags);
 }
 EXPORT_SYMBOL_GPL(account_system_vtime);
@@ -265,125 +357,26 @@ EXPORT_SYMBOL_GPL(account_system_vtime);
  * by the exception entry and exit code to the generic process
  * user and system time records.
  * Must be called with interrupts disabled.
+ * Assumes that account_system_vtime() has been called recently
+ * (i.e. since the last entry from usermode) so that
+ * get_paca()->user_time_scaled is up to date.
  */
 void account_process_tick(struct task_struct *tsk, int user_tick)
 {
 	cputime_t utime, utimescaled;
 
 	utime = get_paca()->user_time;
+	utimescaled = get_paca()->user_time_scaled;
 	get_paca()->user_time = 0;
-	utimescaled = cputime_to_scaled(utime);
+	get_paca()->user_time_scaled = 0;
+	get_paca()->utime_sspurr = 0;
 	account_user_time(tsk, utime, utimescaled);
 }
 
-/*
- * Stuff for accounting stolen time.
- */
-struct cpu_purr_data {
-	int	initialized;			/* thread is running */
-	u64	tb;			/* last TB value read */
-	u64	purr;			/* last PURR value read */
-	u64	spurr;			/* last SPURR value read */
-};
-
-/*
- * Each entry in the cpu_purr_data array is manipulated only by its
- * "owner" cpu -- usually in the timer interrupt but also occasionally
- * in process context for cpu online.  As long as cpus do not touch
- * each others' cpu_purr_data, disabling local interrupts is
- * sufficient to serialize accesses.
- */
-static DEFINE_PER_CPU(struct cpu_purr_data, cpu_purr_data);
-
-static void snapshot_tb_and_purr(void *data)
-{
-	unsigned long flags;
-	struct cpu_purr_data *p = &__get_cpu_var(cpu_purr_data);
-
-	local_irq_save(flags);
-	p->tb = get_tb_or_rtc();
-	p->purr = mfspr(SPRN_PURR);
-	wmb();
-	p->initialized = 1;
-	local_irq_restore(flags);
-}
-
-/*
- * Called during boot when all cpus have come up.
- */
-void snapshot_timebases(void)
-{
-	if (!cpu_has_feature(CPU_FTR_PURR))
-		return;
-	on_each_cpu(snapshot_tb_and_purr, NULL, 1);
-}
-
-/*
- * Must be called with interrupts disabled.
- */
-void calculate_steal_time(void)
-{
-	u64 tb, purr;
-	s64 stolen;
-	struct cpu_purr_data *pme;
-
-	pme = &__get_cpu_var(cpu_purr_data);
-	if (!pme->initialized)
-		return;		/* !CPU_FTR_PURR or early in early boot */
-	tb = mftb();
-	purr = mfspr(SPRN_PURR);
-	stolen = (tb - pme->tb) - (purr - pme->purr);
-	if (stolen > 0) {
-		if (idle_task(smp_processor_id()) != current)
-			account_steal_time(stolen);
-		else
-			account_idle_time(stolen);
-	}
-	pme->tb = tb;
-	pme->purr = purr;
-}
-
-#ifdef CONFIG_PPC_SPLPAR
-/*
- * Must be called before the cpu is added to the online map when
- * a cpu is being brought up at runtime.
- */
-static void snapshot_purr(void)
-{
-	struct cpu_purr_data *pme;
-	unsigned long flags;
-
-	if (!cpu_has_feature(CPU_FTR_PURR))
-		return;
-	local_irq_save(flags);
-	pme = &__get_cpu_var(cpu_purr_data);
-	pme->tb = mftb();
-	pme->purr = mfspr(SPRN_PURR);
-	pme->initialized = 1;
-	local_irq_restore(flags);
-}
-
-#endif /* CONFIG_PPC_SPLPAR */
-
 #else /* ! CONFIG_VIRT_CPU_ACCOUNTING */
 #define calc_cputime_factors()
-#define calculate_steal_time()		do { } while (0)
 #endif
 
-#if !(defined(CONFIG_VIRT_CPU_ACCOUNTING) && defined(CONFIG_PPC_SPLPAR))
-#define snapshot_purr()			do { } while (0)
-#endif
-
-/*
- * Called when a cpu comes up after the system has finished booting,
- * i.e. as a result of a hotplug cpu action.
- */
-void snapshot_timebase(void)
-{
-	__get_cpu_var(last_jiffy) = get_tb_or_rtc();
-	snapshot_purr();
-}
-
 void __delay(unsigned long loops)
 {
 	unsigned long start;
@@ -585,8 +578,6 @@ void timer_interrupt(struct pt_regs * regs)
 	old_regs = set_irq_regs(regs);
 	irq_enter();
 
-	calculate_steal_time();
-
 	if (test_irq_work_pending()) {
 		clear_irq_work_pending();
 		irq_work_run();

arch/powerpc/kernel/traps.c

@@ -538,6 +538,11 @@ int machine_check_e500(struct pt_regs *regs)
 
 	return 0;
 }
+
+int machine_check_generic(struct pt_regs *regs)
+{
+	return 0;
+}
 #elif defined(CONFIG_E200)
 int machine_check_e200(struct pt_regs *regs)
 {

arch/powerpc/kernel/vdso.c

@@ -159,7 +159,7 @@ static void dump_vdso_pages(struct vm_area_struct * vma)
 {
 	int i;
 
-	if (!vma || test_thread_flag(TIF_32BIT)) {
+	if (!vma || is_32bit_task()) {
 		printk("vDSO32 @ %016lx:\n", (unsigned long)vdso32_kbase);
 		for (i=0; i<vdso32_pages; i++) {
 			struct page *pg = virt_to_page(vdso32_kbase +
@@ -170,7 +170,7 @@ static void dump_vdso_pages(struct vm_area_struct * vma)
 			dump_one_vdso_page(pg, upg);
 		}
 	}
-	if (!vma || !test_thread_flag(TIF_32BIT)) {
+	if (!vma || !is_32bit_task()) {
 		printk("vDSO64 @ %016lx:\n", (unsigned long)vdso64_kbase);
 		for (i=0; i<vdso64_pages; i++) {
 			struct page *pg = virt_to_page(vdso64_kbase +
@@ -200,7 +200,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 		return 0;
 
 #ifdef CONFIG_PPC64
-	if (test_thread_flag(TIF_32BIT)) {
+	if (is_32bit_task()) {
 		vdso_pagelist = vdso32_pagelist;
 		vdso_pages = vdso32_pages;
 		vdso_base = VDSO32_MBASE;

arch/powerpc/kernel/vdso32/Makefile

@@ -14,10 +14,10 @@ obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
 
 GCOV_PROFILE := n
 
-EXTRA_CFLAGS := -shared -fno-common -fno-builtin
-EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
+ccflags-y := -shared -fno-common -fno-builtin
+ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
 		$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
-EXTRA_AFLAGS := -D__VDSO32__ -s
+asflags-y := -D__VDSO32__ -s
 
 obj-y += vdso32_wrapper.o
 extra-y += vdso32.lds

arch/powerpc/kernel/vdso64/Makefile

@@ -9,10 +9,10 @@ obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
 
 GCOV_PROFILE := n
 
-EXTRA_CFLAGS := -shared -fno-common -fno-builtin
-EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
+ccflags-y := -shared -fno-common -fno-builtin
+ccflags-y += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
 		$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
-EXTRA_AFLAGS := -D__VDSO64__ -s
+asflags-y := -D__VDSO64__ -s
 
 obj-y += vdso64_wrapper.o
 extra-y += vdso64.lds

arch/powerpc/kernel/vio.c

@@ -1184,7 +1184,12 @@ EXPORT_SYMBOL(vio_unregister_driver);
 /* vio_dev refcount hit 0 */
 static void __devinit vio_dev_release(struct device *dev)
 {
-	/* XXX should free TCE table */
+	struct iommu_table *tbl = get_iommu_table_base(dev);
+
+	/* iSeries uses a common table for all vio devices */
+	if (!firmware_has_feature(FW_FEATURE_ISERIES) && tbl)
+		iommu_free_table(tbl, dev->of_node ?
+			dev->of_node->full_name : dev_name(dev));
 	of_node_put(dev->of_node);
 	kfree(to_vio_dev(dev));
 }
@@ -1254,8 +1259,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 	if (device_register(&viodev->dev)) {
 		printk(KERN_ERR "%s: failed to register device %s\n",
 				__func__, dev_name(&viodev->dev));
-		/* XXX free TCE table */
-		kfree(viodev);
+		put_device(&viodev->dev);
 		return NULL;
 	}
 

arch/powerpc/kvm/Makefile

@@ -4,7 +4,7 @@
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
-EXTRA_CFLAGS += -Ivirt/kvm -Iarch/powerpc/kvm
+ccflags-y := -Ivirt/kvm -Iarch/powerpc/kvm
 
 common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o)
 

arch/powerpc/kvm/book3s_paired_singles.c

@@ -159,7 +159,7 @@
 
 static inline void kvmppc_sync_qpr(struct kvm_vcpu *vcpu, int rt)
 {
-	kvm_cvt_df(&vcpu->arch.fpr[rt], &vcpu->arch.qpr[rt], &vcpu->arch.fpscr);
+	kvm_cvt_df(&vcpu->arch.fpr[rt], &vcpu->arch.qpr[rt]);
 }
 
 static void kvmppc_inject_pf(struct kvm_vcpu *vcpu, ulong eaddr, bool is_store)
@@ -204,7 +204,7 @@ static int kvmppc_emulate_fpr_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	/* put in registers */
 	switch (ls_type) {
 	case FPU_LS_SINGLE:
-		kvm_cvt_fd((u32*)tmp, &vcpu->arch.fpr[rs], &vcpu->arch.fpscr);
+		kvm_cvt_fd((u32*)tmp, &vcpu->arch.fpr[rs]);
 		vcpu->arch.qpr[rs] = *((u32*)tmp);
 		break;
 	case FPU_LS_DOUBLE:
@@ -230,7 +230,7 @@ static int kvmppc_emulate_fpr_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 	switch (ls_type) {
 	case FPU_LS_SINGLE:
-		kvm_cvt_df(&vcpu->arch.fpr[rs], (u32*)tmp, &vcpu->arch.fpscr);
+		kvm_cvt_df(&vcpu->arch.fpr[rs], (u32*)tmp);
 		val = *((u32*)tmp);
 		len = sizeof(u32);
 		break;
@@ -296,7 +296,7 @@ static int kvmppc_emulate_psq_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	emulated = EMULATE_DONE;
 
 	/* put in registers */
-	kvm_cvt_fd(&tmp[0], &vcpu->arch.fpr[rs], &vcpu->arch.fpscr);
+	kvm_cvt_fd(&tmp[0], &vcpu->arch.fpr[rs]);
 	vcpu->arch.qpr[rs] = tmp[1];
 
 	dprintk(KERN_INFO "KVM: PSQ_LD [0x%x, 0x%x] at 0x%lx (%d)\n", tmp[0],
@@ -314,7 +314,7 @@ static int kvmppc_emulate_psq_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	u32 tmp[2];
 	int len = w ? sizeof(u32) : sizeof(u64);
 
-	kvm_cvt_df(&vcpu->arch.fpr[rs], &tmp[0], &vcpu->arch.fpscr);
+	kvm_cvt_df(&vcpu->arch.fpr[rs], &tmp[0]);
 	tmp[1] = vcpu->arch.qpr[rs];
 
 	r = kvmppc_st(vcpu, &addr, len, tmp, true);
@@ -516,9 +516,9 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
 	WARN_ON(rc);
 
 	/* PS0 */
-	kvm_cvt_df(&fpr[reg_in1], &ps0_in1, &vcpu->arch.fpscr);
-	kvm_cvt_df(&fpr[reg_in2], &ps0_in2, &vcpu->arch.fpscr);
-	kvm_cvt_df(&fpr[reg_in3], &ps0_in3, &vcpu->arch.fpscr);
+	kvm_cvt_df(&fpr[reg_in1], &ps0_in1);
+	kvm_cvt_df(&fpr[reg_in2], &ps0_in2);
+	kvm_cvt_df(&fpr[reg_in3], &ps0_in3);
 
 	if (scalar & SCALAR_LOW)
 		ps0_in2 = qpr[reg_in2];
@@ -529,7 +529,7 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
 			  ps0_in1, ps0_in2, ps0_in3, ps0_out);
 
 	if (!(scalar & SCALAR_NO_PS0))
-		kvm_cvt_fd(&ps0_out, &fpr[reg_out], &vcpu->arch.fpscr);
+		kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
 
 	/* PS1 */
 	ps1_in1 = qpr[reg_in1];
@@ -566,12 +566,12 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
 	WARN_ON(rc);
 
 	/* PS0 */
-	kvm_cvt_df(&fpr[reg_in1], &ps0_in1, &vcpu->arch.fpscr);
+	kvm_cvt_df(&fpr[reg_in1], &ps0_in1);
 
 	if (scalar & SCALAR_LOW)
 		ps0_in2 = qpr[reg_in2];
 	else
-		kvm_cvt_df(&fpr[reg_in2], &ps0_in2, &vcpu->arch.fpscr);
+		kvm_cvt_df(&fpr[reg_in2], &ps0_in2);
 
 	func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2);
 
@@ -579,7 +579,7 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
 		dprintk(KERN_INFO "PS2 ps0 -> f(0x%x, 0x%x) = 0x%x\n",
 				  ps0_in1, ps0_in2, ps0_out);
 
-		kvm_cvt_fd(&ps0_out, &fpr[reg_out], &vcpu->arch.fpscr);
+		kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
 	}
 
 	/* PS1 */
@@ -615,13 +615,13 @@ static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc,
 	WARN_ON(rc);
 
 	/* PS0 */
-	kvm_cvt_df(&fpr[reg_in], &ps0_in, &vcpu->arch.fpscr);
+	kvm_cvt_df(&fpr[reg_in], &ps0_in);
 	func(&vcpu->arch.fpscr, &ps0_out, &ps0_in);
 
 	dprintk(KERN_INFO "PS1 ps0 -> f(0x%x) = 0x%x\n",
 			  ps0_in, ps0_out);
 
-	kvm_cvt_fd(&ps0_out, &fpr[reg_out], &vcpu->arch.fpscr);
+	kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
 
 	/* PS1 */
 	ps1_in = qpr[reg_in];
@@ -671,7 +671,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
 #ifdef DEBUG
 	for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
 		u32 f;
-		kvm_cvt_df(&vcpu->arch.fpr[i], &f, &vcpu->arch.fpscr);
+		kvm_cvt_df(&vcpu->arch.fpr[i], &f);
 		dprintk(KERN_INFO "FPR[%d] = 0x%x / 0x%llx    QPR[%d] = 0x%x\n",
 			i, f, vcpu->arch.fpr[i], i, vcpu->arch.qpr[i]);
 	}
@@ -796,8 +796,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
 			vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra];
 			/* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
 			kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
-				   &vcpu->arch.qpr[ax_rd],
-				   &vcpu->arch.fpscr);
+				   &vcpu->arch.qpr[ax_rd]);
 			break;
 		case OP_4X_PS_MERGE01:
 			WARN_ON(rcomp);
@@ -808,19 +807,16 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
 			WARN_ON(rcomp);
 			/* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
 			kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
-				   &vcpu->arch.fpr[ax_rd],
-				   &vcpu->arch.fpscr);
+				   &vcpu->arch.fpr[ax_rd]);
 			/* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
 			kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
-				   &vcpu->arch.qpr[ax_rd],
-				   &vcpu->arch.fpscr);
+				   &vcpu->arch.qpr[ax_rd]);
 			break;
 		case OP_4X_PS_MERGE11:
 			WARN_ON(rcomp);
 			/* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
 			kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
-				   &vcpu->arch.fpr[ax_rd],
-				   &vcpu->arch.fpscr);
+				   &vcpu->arch.fpr[ax_rd]);
 			vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
 			break;
 		}
@@ -1255,7 +1251,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
 #ifdef DEBUG
 	for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
 		u32 f;
-		kvm_cvt_df(&vcpu->arch.fpr[i], &f, &vcpu->arch.fpscr);
+		kvm_cvt_df(&vcpu->arch.fpr[i], &f);
 		dprintk(KERN_INFO "FPR[%d] = 0x%x\n", i, f);
 	}
 #endif

arch/powerpc/kvm/emulate.c

@@ -145,7 +145,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	/* this default type might be overwritten by subcategories */
 	kvmppc_set_exit_type(vcpu, EMULATED_INST_EXITS);
 
-	pr_debug(KERN_INFO "Emulating opcode %d / %d\n", get_op(inst), get_xop(inst));
+	pr_debug("Emulating opcode %d / %d\n", get_op(inst), get_xop(inst));
 
 	switch (get_op(inst)) {
 	case OP_TRAP:
@@ -275,7 +275,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 			{
 				u64 jd = get_tb() - vcpu->arch.dec_jiffies;
 				kvmppc_set_gpr(vcpu, rt, vcpu->arch.dec - jd);
-				pr_debug(KERN_INFO "mfDEC: %x - %llx = %lx\n",
+				pr_debug("mfDEC: %x - %llx = %lx\n",
 					 vcpu->arch.dec, jd,
 					 kvmppc_get_gpr(vcpu, rt));
 				break;

arch/powerpc/kvm/fpu.S

@@ -273,19 +273,11 @@ FPD_THREE_IN(fnmsub)
 FPD_THREE_IN(fnmadd)
 
 _GLOBAL(kvm_cvt_fd)
-	lfd	0,0(r5)			/* load up fpscr value */
-	MTFSF_L(0)
 	lfs	0,0(r3)
 	stfd	0,0(r4)
-	mffs	0
-	stfd	0,0(r5)			/* save new fpscr value */
 	blr
 
 _GLOBAL(kvm_cvt_df)
-	lfd	0,0(r5)			/* load up fpscr value */
-	MTFSF_L(0)
 	lfd	0,0(r3)
 	stfs	0,0(r4)
-	mffs	0
-	stfd	0,0(r5)			/* save new fpscr value */
 	blr

arch/powerpc/lib/Makefile

@@ -4,9 +4,7 @@
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
-ifeq ($(CONFIG_PPC64),y)
-EXTRA_CFLAGS		+= -mno-minimal-toc
-endif
+ccflags-$(CONFIG_PPC64)	:= -mno-minimal-toc
 
 CFLAGS_REMOVE_code-patching.o = -pg
 CFLAGS_REMOVE_feature-fixups.o = -pg
@@ -17,7 +15,8 @@ obj-$(CONFIG_PPC32)	+= div64.o copy_32.o
 obj-$(CONFIG_HAS_IOMEM)	+= devres.o
 
 obj-$(CONFIG_PPC64)	+= copypage_64.o copyuser_64.o \
-			   memcpy_64.o usercopy_64.o mem_64.o string.o
+			   memcpy_64.o usercopy_64.o mem_64.o string.o \
+			   checksum_wrappers_64.o
 obj-$(CONFIG_XMON)	+= sstep.o ldstfp.o
 obj-$(CONFIG_KPROBES)	+= sstep.o ldstfp.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)	+= sstep.o ldstfp.o

arch/powerpc/lib/checksum_64.S

@@ -65,165 +65,393 @@ _GLOBAL(csum_tcpudp_magic)
 	srwi	r3,r3,16
 	blr
 
+#define STACKFRAMESIZE 256
+#define STK_REG(i)	(112 + ((i)-14)*8)
+
 /*
  * Computes the checksum of a memory block at buff, length len,
  * and adds in "sum" (32-bit).
  *
- * This code assumes at least halfword alignment, though the length
- * can be any number of bytes.  The sum is accumulated in r5.
- *
  * csum_partial(r3=buff, r4=len, r5=sum)
  */
 _GLOBAL(csum_partial)
-        subi	r3,r3,8		/* we'll offset by 8 for the loads */
-        srdi.	r6,r4,3         /* divide by 8 for doubleword count */
-        addic   r5,r5,0         /* clear carry */
-        beq	3f              /* if we're doing < 8 bytes */
-        andi.	r0,r3,2         /* aligned on a word boundary already? */
-        beq+	1f
-        lhz     r6,8(r3)        /* do 2 bytes to get aligned */
-        addi    r3,r3,2
-        subi    r4,r4,2
-        addc    r5,r5,r6
-        srdi.   r6,r4,3         /* recompute number of doublewords */
-        beq     3f              /* any left? */
-1:      mtctr   r6
-2:      ldu     r6,8(r3)        /* main sum loop */
-        adde    r5,r5,r6
-        bdnz    2b
-        andi.	r4,r4,7         /* compute bytes left to sum after doublewords */
-3:	cmpwi	0,r4,4		/* is at least a full word left? */
-	blt	4f
-	lwz	r6,8(r3)	/* sum this word */
+	addic	r0,r5,0			/* clear carry */
+
+	srdi.	r6,r4,3			/* less than 8 bytes? */
+	beq	.Lcsum_tail_word
+
+	/*
+	 * If only halfword aligned, align to a double word. Since odd
+	 * aligned addresses should be rare and they would require more
+	 * work to calculate the correct checksum, we ignore that case
+	 * and take the potential slowdown of unaligned loads.
+	 */
+	rldicl. r6,r3,64-1,64-2		/* r6 = (r3 & 0x3) >> 1 */
+	beq	.Lcsum_aligned
+
+	li	r7,4
+	sub	r6,r7,r6
+	mtctr	r6
+
+1:
+	lhz	r6,0(r3)		/* align to doubleword */
+	subi	r4,r4,2
+	addi	r3,r3,2
+	adde	r0,r0,r6
+	bdnz	1b
+
+.Lcsum_aligned:
+	/*
+	 * We unroll the loop such that each iteration is 64 bytes with an
+	 * entry and exit limb of 64 bytes, meaning a minimum size of
+	 * 128 bytes.
+	 */
+	srdi.	r6,r4,7
+	beq	.Lcsum_tail_doublewords		/* len < 128 */
+
+	srdi	r6,r4,6
+	subi	r6,r6,1
+	mtctr	r6
+
+	stdu	r1,-STACKFRAMESIZE(r1)
+	std	r14,STK_REG(r14)(r1)
+	std	r15,STK_REG(r15)(r1)
+	std	r16,STK_REG(r16)(r1)
+
+	ld	r6,0(r3)
+	ld	r9,8(r3)
+
+	ld	r10,16(r3)
+	ld	r11,24(r3)
+
+	/*
+	 * On POWER6 and POWER7 back to back addes take 2 cycles because of
+	 * the XER dependency. This means the fastest this loop can go is
+	 * 16 cycles per iteration. The scheduling of the loop below has
+	 * been shown to hit this on both POWER6 and POWER7.
+	 */
+	.align 5
+2:
+	adde	r0,r0,r6
+	ld	r12,32(r3)
+	ld	r14,40(r3)
+
+	adde	r0,r0,r9
+	ld	r15,48(r3)
+	ld	r16,56(r3)
+	addi	r3,r3,64
+
+	adde	r0,r0,r10
+
+	adde	r0,r0,r11
+
+	adde	r0,r0,r12
+
+	adde	r0,r0,r14
+
+	adde	r0,r0,r15
+	ld	r6,0(r3)
+	ld	r9,8(r3)
+
+	adde	r0,r0,r16
+	ld	r10,16(r3)
+	ld	r11,24(r3)
+	bdnz	2b
+
+
+	adde	r0,r0,r6
+	ld	r12,32(r3)
+	ld	r14,40(r3)
+
+	adde	r0,r0,r9
+	ld	r15,48(r3)
+	ld	r16,56(r3)
+	addi	r3,r3,64
+
+	adde	r0,r0,r10
+	adde	r0,r0,r11
+	adde	r0,r0,r12
+	adde	r0,r0,r14
+	adde	r0,r0,r15
+	adde	r0,r0,r16
+
+	ld	r14,STK_REG(r14)(r1)
+	ld	r15,STK_REG(r15)(r1)
+	ld	r16,STK_REG(r16)(r1)
+	addi	r1,r1,STACKFRAMESIZE
+
+	andi.	r4,r4,63
+
+.Lcsum_tail_doublewords:		/* Up to 127 bytes to go */
+	srdi.	r6,r4,3
+	beq	.Lcsum_tail_word
+
+	mtctr	r6
+3:
+	ld	r6,0(r3)
+	addi	r3,r3,8
+	adde	r0,r0,r6
+	bdnz	3b
+
+	andi.	r4,r4,7
+
+.Lcsum_tail_word:			/* Up to 7 bytes to go */
+	srdi.	r6,r4,2
+	beq	.Lcsum_tail_halfword
+
+	lwz	r6,0(r3)
 	addi	r3,r3,4
+	adde	r0,r0,r6
 	subi	r4,r4,4
-	adde	r5,r5,r6
-4:	cmpwi	0,r4,2		/* is at least a halfword left? */
-        blt+	5f
-        lhz     r6,8(r3)        /* sum this halfword */
-        addi    r3,r3,2
-        subi    r4,r4,2
-        adde    r5,r5,r6
-5:	cmpwi	0,r4,1		/* is at least a byte left? */
-        bne+    6f
-        lbz     r6,8(r3)        /* sum this byte */
-        slwi    r6,r6,8         /* this byte is assumed to be the upper byte of a halfword */
-        adde    r5,r5,r6
-6:      addze	r5,r5		/* add in final carry */
-	rldicl  r4,r5,32,0      /* fold two 32-bit halves together */
-        add     r3,r4,r5
-        srdi    r3,r3,32
-        blr
+
+.Lcsum_tail_halfword:			/* Up to 3 bytes to go */
+	srdi.	r6,r4,1
+	beq	.Lcsum_tail_byte
+
+	lhz	r6,0(r3)
+	addi	r3,r3,2
+	adde	r0,r0,r6
+	subi	r4,r4,2
+
+.Lcsum_tail_byte:			/* Up to 1 byte to go */
+	andi.	r6,r4,1
+	beq	.Lcsum_finish
+
+	lbz	r6,0(r3)
+	sldi	r9,r6,8			/* Pad the byte out to 16 bits */
+	adde	r0,r0,r9
+
+.Lcsum_finish:
+	addze	r0,r0			/* add in final carry */
+	rldicl	r4,r0,32,0		/* fold two 32 bit halves together */
+	add	r3,r4,r0
+	srdi	r3,r3,32
+	blr
+
+
+	.macro source
+100:
+	.section __ex_table,"a"
+	.align 3
+	.llong 100b,.Lsrc_error
+	.previous
+	.endm
+
+	.macro dest
+200:
+	.section __ex_table,"a"
+	.align 3
+	.llong 200b,.Ldest_error
+	.previous
+	.endm
 
 /*
  * Computes the checksum of a memory block at src, length len,
  * and adds in "sum" (32-bit), while copying the block to dst.
  * If an access exception occurs on src or dst, it stores -EFAULT
- * to *src_err or *dst_err respectively, and (for an error on
- * src) zeroes the rest of dst.
- *
- * This code needs to be reworked to take advantage of 64 bit sum+copy.
- * However, due to tokenring halfword alignment problems this will be very
- * tricky.  For now we'll leave it until we instrument it somehow.
+ * to *src_err or *dst_err respectively. The caller must take any action
+ * required in this case (zeroing memory, recalculating partial checksum etc).
  *
  * csum_partial_copy_generic(r3=src, r4=dst, r5=len, r6=sum, r7=src_err, r8=dst_err)
  */
 _GLOBAL(csum_partial_copy_generic)
-	addic	r0,r6,0
-	subi	r3,r3,4
-	subi	r4,r4,4
-	srwi.	r6,r5,2
-	beq	3f		/* if we're doing < 4 bytes */
-	andi.	r9,r4,2		/* Align dst to longword boundary */
-	beq+	1f
-81:	lhz	r6,4(r3)	/* do 2 bytes to get aligned */
-	addi	r3,r3,2
+	addic	r0,r6,0			/* clear carry */
+
+	srdi.	r6,r5,3			/* less than 8 bytes? */
+	beq	.Lcopy_tail_word
+
+	/*
+	 * If only halfword aligned, align to a double word. Since odd
+	 * aligned addresses should be rare and they would require more
+	 * work to calculate the correct checksum, we ignore that case
+	 * and take the potential slowdown of unaligned loads.
+	 *
+	 * If the source and destination are relatively unaligned we only
+	 * align the source. This keeps things simple.
+	 */
+	rldicl. r6,r3,64-1,64-2		/* r6 = (r3 & 0x3) >> 1 */
+	beq	.Lcopy_aligned
+
+	li	r7,4
+	sub	r6,r7,r6
+	mtctr	r6
+
+1:
+source;	lhz	r6,0(r3)		/* align to doubleword */
 	subi	r5,r5,2
-91:	sth	r6,4(r4)
-	addi	r4,r4,2
-	addc	r0,r0,r6
-	srwi.	r6,r5,2		/* # words to do */
-	beq	3f
-1:	mtctr	r6
-82:	lwzu	r6,4(r3)	/* the bdnz has zero overhead, so it should */
-92:	stwu	r6,4(r4)	/* be unnecessary to unroll this loop */
-	adde	r0,r0,r6
-	bdnz	82b
-	andi.	r5,r5,3
-3:	cmpwi	0,r5,2
-	blt+	4f
-83:	lhz	r6,4(r3)
 	addi	r3,r3,2
-	subi	r5,r5,2
-93:	sth	r6,4(r4)
+	adde	r0,r0,r6
+dest;	sth	r6,0(r4)
 	addi	r4,r4,2
+	bdnz	1b
+
+.Lcopy_aligned:
+	/*
+	 * We unroll the loop such that each iteration is 64 bytes with an
+	 * entry and exit limb of 64 bytes, meaning a minimum size of
+	 * 128 bytes.
+	 */
+	srdi.	r6,r5,7
+	beq	.Lcopy_tail_doublewords		/* len < 128 */
+
+	srdi	r6,r5,6
+	subi	r6,r6,1
+	mtctr	r6
+
+	stdu	r1,-STACKFRAMESIZE(r1)
+	std	r14,STK_REG(r14)(r1)
+	std	r15,STK_REG(r15)(r1)
+	std	r16,STK_REG(r16)(r1)
+
+source;	ld	r6,0(r3)
+source;	ld	r9,8(r3)
+
+source;	ld	r10,16(r3)
+source;	ld	r11,24(r3)
+
+	/*
+	 * On POWER6 and POWER7 back to back addes take 2 cycles because of
+	 * the XER dependency. This means the fastest this loop can go is
+	 * 16 cycles per iteration. The scheduling of the loop below has
+	 * been shown to hit this on both POWER6 and POWER7.
+	 */
+	.align 5
+2:
 	adde	r0,r0,r6
-4:	cmpwi	0,r5,1
-	bne+	5f
-84:	lbz	r6,4(r3)
-94:	stb	r6,4(r4)
-	slwi	r6,r6,8		/* Upper byte of word */
+source;	ld	r12,32(r3)
+source;	ld	r14,40(r3)
+
+	adde	r0,r0,r9
+source;	ld	r15,48(r3)
+source;	ld	r16,56(r3)
+	addi	r3,r3,64
+
+	adde	r0,r0,r10
+dest;	std	r6,0(r4)
+dest;	std	r9,8(r4)
+
+	adde	r0,r0,r11
+dest;	std	r10,16(r4)
+dest;	std	r11,24(r4)
+
+	adde	r0,r0,r12
+dest;	std	r12,32(r4)
+dest;	std	r14,40(r4)
+
+	adde	r0,r0,r14
+dest;	std	r15,48(r4)
+dest;	std	r16,56(r4)
+	addi	r4,r4,64
+
+	adde	r0,r0,r15
+source;	ld	r6,0(r3)
+source;	ld	r9,8(r3)
+
+	adde	r0,r0,r16
+source;	ld	r10,16(r3)
+source;	ld	r11,24(r3)
+	bdnz	2b
+
+
 	adde	r0,r0,r6
-5:	addze	r3,r0		/* add in final carry (unlikely with 64-bit regs) */
-        rldicl  r4,r3,32,0      /* fold 64 bit value */
-        add     r3,r4,r3
-        srdi    r3,r3,32
-	blr
+source;	ld	r12,32(r3)
+source;	ld	r14,40(r3)
 
-/* These shouldn't go in the fixup section, since that would
-   cause the ex_table addresses to get out of order. */
+	adde	r0,r0,r9
+source;	ld	r15,48(r3)
+source;	ld	r16,56(r3)
+	addi	r3,r3,64
+
+	adde	r0,r0,r10
+dest;	std	r6,0(r4)
+dest;	std	r9,8(r4)
+
+	adde	r0,r0,r11
+dest;	std	r10,16(r4)
+dest;	std	r11,24(r4)
+
+	adde	r0,r0,r12
+dest;	std	r12,32(r4)
+dest;	std	r14,40(r4)
+
+	adde	r0,r0,r14
+dest;	std	r15,48(r4)
+dest;	std	r16,56(r4)
+	addi	r4,r4,64
+
+	adde	r0,r0,r15
+	adde	r0,r0,r16
+
+	ld	r14,STK_REG(r14)(r1)
+	ld	r15,STK_REG(r15)(r1)
+	ld	r16,STK_REG(r16)(r1)
+	addi	r1,r1,STACKFRAMESIZE
+
+	andi.	r5,r5,63
+
+.Lcopy_tail_doublewords:		/* Up to 127 bytes to go */
+	srdi.	r6,r5,3
+	beq	.Lcopy_tail_word
 
-	.globl src_error_1
-src_error_1:
-	li	r6,0
-	subi	r5,r5,2
-95:	sth	r6,4(r4)
-	addi	r4,r4,2
-	srwi.	r6,r5,2
-	beq	3f
 	mtctr	r6
-	.globl src_error_2
-src_error_2:
-	li	r6,0
-96:	stwu	r6,4(r4)
-	bdnz	96b
-3:	andi.	r5,r5,3
-	beq	src_error
-	.globl src_error_3
-src_error_3:
-	li	r6,0
-	mtctr	r5
-	addi	r4,r4,3
-97:	stbu	r6,1(r4)
-	bdnz	97b
-	.globl src_error
-src_error:
+3:
+source;	ld	r6,0(r3)
+	addi	r3,r3,8
+	adde	r0,r0,r6
+dest;	std	r6,0(r4)
+	addi	r4,r4,8
+	bdnz	3b
+
+	andi.	r5,r5,7
+
+.Lcopy_tail_word:			/* Up to 7 bytes to go */
+	srdi.	r6,r5,2
+	beq	.Lcopy_tail_halfword
+
+source;	lwz	r6,0(r3)
+	addi	r3,r3,4
+	adde	r0,r0,r6
+dest;	stw	r6,0(r4)
+	addi	r4,r4,4
+	subi	r5,r5,4
+
+.Lcopy_tail_halfword:			/* Up to 3 bytes to go */
+	srdi.	r6,r5,1
+	beq	.Lcopy_tail_byte
+
+source;	lhz	r6,0(r3)
+	addi	r3,r3,2
+	adde	r0,r0,r6
+dest;	sth	r6,0(r4)
+	addi	r4,r4,2
+	subi	r5,r5,2
+
+.Lcopy_tail_byte:			/* Up to 1 byte to go */
+	andi.	r6,r5,1
+	beq	.Lcopy_finish
+
+source;	lbz	r6,0(r3)
+	sldi	r9,r6,8			/* Pad the byte out to 16 bits */
+	adde	r0,r0,r9
+dest;	stb	r6,0(r4)
+
+.Lcopy_finish:
+	addze	r0,r0			/* add in final carry */
+	rldicl	r4,r0,32,0		/* fold two 32 bit halves together */
+	add	r3,r4,r0
+	srdi	r3,r3,32
+	blr
+
+.Lsrc_error:
 	cmpdi	0,r7,0
-	beq	1f
+	beqlr
 	li	r6,-EFAULT
 	stw	r6,0(r7)
-1:	addze	r3,r0
 	blr
 
-	.globl dst_error
-dst_error:
+.Ldest_error:
 	cmpdi	0,r8,0
-	beq	1f
+	beqlr
 	li	r6,-EFAULT
 	stw	r6,0(r8)
-1:	addze	r3,r0
 	blr
-
-.section __ex_table,"a"
-	.align  3
-	.llong	81b,src_error_1
-	.llong	91b,dst_error
-	.llong	82b,src_error_2
-	.llong	92b,dst_error
-	.llong	83b,src_error_3
-	.llong	93b,dst_error
-	.llong	84b,src_error_3
-	.llong	94b,dst_error
-	.llong	95b,dst_error
-	.llong	96b,dst_error
-	.llong	97b,dst_error

arch/powerpc/lib/checksum_wrappers_64.c

@@ -0,0 +1,102 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2010
+ *
+ * Author: Anton Blanchard <anton@au.ibm.com>
+ */
+#include <linux/module.h>
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <asm/checksum.h>
+#include <asm/uaccess.h>
+
+__wsum csum_and_copy_from_user(const void __user *src, void *dst,
+			       int len, __wsum sum, int *err_ptr)
+{
+	unsigned int csum;
+
+	might_sleep();
+
+	*err_ptr = 0;
+
+	if (!len) {
+		csum = 0;
+		goto out;
+	}
+
+	if (unlikely((len < 0) || !access_ok(VERIFY_READ, src, len))) {
+		*err_ptr = -EFAULT;
+		csum = (__force unsigned int)sum;
+		goto out;
+	}
+
+	csum = csum_partial_copy_generic((void __force *)src, dst,
+					 len, sum, err_ptr, NULL);
+
+	if (unlikely(*err_ptr)) {
+		int missing = __copy_from_user(dst, src, len);
+
+		if (missing) {
+			memset(dst + len - missing, 0, missing);
+			*err_ptr = -EFAULT;
+		} else {
+			*err_ptr = 0;
+		}
+
+		csum = csum_partial(dst, len, sum);
+	}
+
+out:
+	return (__force __wsum)csum;
+}
+EXPORT_SYMBOL(csum_and_copy_from_user);
+
+__wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
+			     __wsum sum, int *err_ptr)
+{
+	unsigned int csum;
+
+	might_sleep();
+
+	*err_ptr = 0;
+
+	if (!len) {
+		csum = 0;
+		goto out;
+	}
+
+	if (unlikely((len < 0) || !access_ok(VERIFY_WRITE, dst, len))) {
+		*err_ptr = -EFAULT;
+		csum = -1; /* invalid checksum */
+		goto out;
+	}
+
+	csum = csum_partial_copy_generic(src, (void __force *)dst,
+					 len, sum, NULL, err_ptr);
+
+	if (unlikely(*err_ptr)) {
+		csum = csum_partial(src, len, sum);
+
+		if (copy_to_user(dst, src, len)) {
+			*err_ptr = -EFAULT;
+			csum = -1; /* invalid checksum */
+		}
+	}
+
+out:
+	return (__force __wsum)csum;
+}
+EXPORT_SYMBOL(csum_and_copy_to_user);

arch/powerpc/lib/copy_32.S

@@ -62,7 +62,7 @@
 
 	.text
 	.stabs	"arch/powerpc/lib/",N_SO,0,0,0f
-	.stabs	"copy32.S",N_SO,0,0,0f
+	.stabs	"copy_32.S",N_SO,0,0,0f
 0:
 
 CACHELINE_BYTES = L1_CACHE_BYTES

arch/powerpc/lib/ldstfp.S

@@ -17,6 +17,8 @@
 #include <asm/asm-offsets.h>
 #include <linux/errno.h>
 
+#ifdef CONFIG_PPC_FPU
+
 #define STKFRM	(PPC_MIN_STKFRM + 16)
 
 	.macro	extab	instr,handler
@@ -81,7 +83,7 @@ _GLOBAL(do_lfs)
 	mfmsr	r6
 	ori	r7,r6,MSR_FP
 	cmpwi	cr7,r3,0
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	stfd	fr0,STKFRM-16(r1)
@@ -93,7 +95,7 @@ _GLOBAL(do_lfs)
 	lfd	fr0,STKFRM-16(r1)
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -108,7 +110,7 @@ _GLOBAL(do_lfd)
 	mfmsr	r6
 	ori	r7,r6,MSR_FP
 	cmpwi	cr7,r3,0
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	stfd	fr0,STKFRM-16(r1)
@@ -120,7 +122,7 @@ _GLOBAL(do_lfd)
 	lfd	fr0,STKFRM-16(r1)
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -135,7 +137,7 @@ _GLOBAL(do_stfs)
 	mfmsr	r6
 	ori	r7,r6,MSR_FP
 	cmpwi	cr7,r3,0
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	stfd	fr0,STKFRM-16(r1)
@@ -147,7 +149,7 @@ _GLOBAL(do_stfs)
 	lfd	fr0,STKFRM-16(r1)
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -162,7 +164,7 @@ _GLOBAL(do_stfd)
 	mfmsr	r6
 	ori	r7,r6,MSR_FP
 	cmpwi	cr7,r3,0
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	stfd	fr0,STKFRM-16(r1)
@@ -174,7 +176,7 @@ _GLOBAL(do_stfd)
 	lfd	fr0,STKFRM-16(r1)
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -229,7 +231,7 @@ _GLOBAL(do_lvx)
 	oris	r7,r6,MSR_VEC@h
 	cmpwi	cr7,r3,0
 	li	r8,STKFRM-16
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	stvx	vr0,r1,r8
@@ -241,7 +243,7 @@ _GLOBAL(do_lvx)
 	lvx	vr0,r1,r8
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -257,7 +259,7 @@ _GLOBAL(do_stvx)
 	oris	r7,r6,MSR_VEC@h
 	cmpwi	cr7,r3,0
 	li	r8,STKFRM-16
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	stvx	vr0,r1,r8
@@ -269,7 +271,7 @@ _GLOBAL(do_stvx)
 	lvx	vr0,r1,r8
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -325,7 +327,7 @@ _GLOBAL(do_lxvd2x)
 	oris	r7,r6,MSR_VSX@h
 	cmpwi	cr7,r3,0
 	li	r8,STKFRM-16
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	STXVD2X(0,r1,r8)
@@ -337,7 +339,7 @@ _GLOBAL(do_lxvd2x)
 	LXVD2X(0,r1,r8)
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -353,7 +355,7 @@ _GLOBAL(do_stxvd2x)
 	oris	r7,r6,MSR_VSX@h
 	cmpwi	cr7,r3,0
 	li	r8,STKFRM-16
-	mtmsrd	r7
+	MTMSRD(r7)
 	isync
 	beq	cr7,1f
 	STXVD2X(0,r1,r8)
@@ -365,7 +367,7 @@ _GLOBAL(do_stxvd2x)
 	LXVD2X(0,r1,r8)
 4:	PPC_LL	r0,STKFRM+PPC_LR_STKOFF(r1)
 	mtlr	r0
-	mtmsrd	r6
+	MTMSRD(r6)
 	isync
 	mr	r3,r9
 	addi	r1,r1,STKFRM
@@ -373,3 +375,5 @@ _GLOBAL(do_stxvd2x)
 	extab	2b,3b
 
 #endif /* CONFIG_VSX */
+
+#endif	/* CONFIG_PPC_FPU */

arch/powerpc/lib/locks.c

@@ -34,7 +34,7 @@ void __spin_yield(arch_spinlock_t *lock)
 		return;
 	holder_cpu = lock_value & 0xffff;
 	BUG_ON(holder_cpu >= NR_CPUS);
-	yield_count = lppaca[holder_cpu].yield_count;
+	yield_count = lppaca_of(holder_cpu).yield_count;
 	if ((yield_count & 1) == 0)
 		return;		/* virtual cpu is currently running */
 	rmb();
@@ -65,7 +65,7 @@ void __rw_yield(arch_rwlock_t *rw)
 		return;		/* no write lock at present */
 	holder_cpu = lock_value & 0xffff;
 	BUG_ON(holder_cpu >= NR_CPUS);
-	yield_count = lppaca[holder_cpu].yield_count;
+	yield_count = lppaca_of(holder_cpu).yield_count;
 	if ((yield_count & 1) == 0)
 		return;		/* virtual cpu is currently running */
 	rmb();

arch/powerpc/lib/sstep.c

@@ -30,6 +30,7 @@ extern char system_call_common[];
 #define XER_OV		0x40000000U
 #define XER_CA		0x20000000U
 
+#ifdef CONFIG_PPC_FPU
 /*
  * Functions in ldstfp.S
  */
@@ -41,6 +42,7 @@ extern int do_lvx(int rn, unsigned long ea);
 extern int do_stvx(int rn, unsigned long ea);
 extern int do_lxvd2x(int rn, unsigned long ea);
 extern int do_stxvd2x(int rn, unsigned long ea);
+#endif
 
 /*
  * Determine whether a conditional branch instruction would branch.
@@ -290,6 +292,7 @@ static int __kprobes write_mem(unsigned long val, unsigned long ea, int nb,
 	return write_mem_unaligned(val, ea, nb, regs);
 }
 
+#ifdef CONFIG_PPC_FPU
 /*
  * Check the address and alignment, and call func to do the actual
  * load or store.
@@ -351,6 +354,7 @@ static int __kprobes do_fp_store(int rn, int (*func)(int, unsigned long),
 	}
 	return err;
 }
+#endif
 
 #ifdef CONFIG_ALTIVEC
 /* For Altivec/VMX, no need to worry about alignment */
@@ -1393,6 +1397,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 				regs->gpr[rd] = byterev_4(val);
 			goto ldst_done;
 
+#ifdef CONFIG_PPC_CPU
 		case 535:	/* lfsx */
 		case 567:	/* lfsux */
 			if (!(regs->msr & MSR_FP))
@@ -1424,6 +1429,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 			ea = xform_ea(instr, regs, u);
 			err = do_fp_store(rd, do_stfd, ea, 8, regs);
 			goto ldst_done;
+#endif
 
 #ifdef __powerpc64__
 		case 660:	/* stdbrx */
@@ -1534,6 +1540,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 		} while (++rd < 32);
 		goto instr_done;
 
+#ifdef CONFIG_PPC_FPU
 	case 48:	/* lfs */
 	case 49:	/* lfsu */
 		if (!(regs->msr & MSR_FP))
@@ -1565,6 +1572,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 		ea = dform_ea(instr, regs);
 		err = do_fp_store(rd, do_stfd, ea, 8, regs);
 		goto ldst_done;
+#endif
 
 #ifdef __powerpc64__
 	case 58:	/* ld[u], lwa */

arch/powerpc/math-emu/Makefile

@@ -15,4 +15,4 @@ obj-$(CONFIG_SPE)		+= math_efp.o
 CFLAGS_fabs.o = -fno-builtin-fabs
 CFLAGS_math.o = -fno-builtin-fabs
 
-EXTRA_CFLAGS = -I. -Iinclude/math-emu -w
+ccflags-y = -I. -Iinclude/math-emu -w

arch/powerpc/mm/Makefile

@@ -4,9 +4,7 @@
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
-ifeq ($(CONFIG_PPC64),y)
-EXTRA_CFLAGS	+= -mno-minimal-toc
-endif
+ccflags-$(CONFIG_PPC64)	:= -mno-minimal-toc
 
 obj-y				:= fault.o mem.o pgtable.o gup.o \
 				   init_$(CONFIG_WORD_SIZE).o \
@@ -25,7 +23,7 @@ obj-$(CONFIG_PPC_STD_MMU)	+= hash_low_$(CONFIG_WORD_SIZE).o \
 				   mmu_context_hash$(CONFIG_WORD_SIZE).o
 obj-$(CONFIG_40x)		+= 40x_mmu.o
 obj-$(CONFIG_44x)		+= 44x_mmu.o
-obj-$(CONFIG_FSL_BOOKE)		+= fsl_booke_mmu.o
+obj-$(CONFIG_PPC_FSL_BOOK3E)	+= fsl_booke_mmu.o
 obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o
 obj-$(CONFIG_PPC_MM_SLICES)	+= slice.o
 ifeq ($(CONFIG_HUGETLB_PAGE),y)

arch/powerpc/mm/fault.c

@@ -30,6 +30,7 @@
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
 #include <linux/perf_event.h>
+#include <linux/magic.h>
 
 #include <asm/firmware.h>
 #include <asm/page.h>
@@ -385,6 +386,7 @@ do_sigbus:
 void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
 {
 	const struct exception_table_entry *entry;
+	unsigned long *stackend;
 
 	/* Are we prepared to handle this fault?  */
 	if ((entry = search_exception_tables(regs->nip)) != NULL) {
@@ -413,5 +415,9 @@ void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
 	printk(KERN_ALERT "Faulting instruction address: 0x%08lx\n",
 		regs->nip);
 
+	stackend = end_of_stack(current);
+	if (current != &init_task && *stackend != STACK_END_MAGIC)
+		printk(KERN_ALERT "Thread overran stack, or stack corrupted\n");
+
 	die("Kernel access of bad area", regs, sig);
 }

arch/powerpc/mm/fsl_booke_mmu.c

@@ -57,11 +57,6 @@
 
 unsigned int tlbcam_index;
 
-
-#if defined(CONFIG_LOWMEM_CAM_NUM_BOOL) && (CONFIG_LOWMEM_CAM_NUM >= NUM_TLBCAMS)
-#error "LOWMEM_CAM_NUM must be less than NUM_TLBCAMS"
-#endif
-
 #define NUM_TLBCAMS	(64)
 struct tlbcam TLBCAM[NUM_TLBCAMS];
 
@@ -138,7 +133,8 @@ static void settlbcam(int index, unsigned long virt, phys_addr_t phys,
 	if (mmu_has_feature(MMU_FTR_BIG_PHYS))
 		TLBCAM[index].MAS7 = (u64)phys >> 32;
 
-	if (flags & _PAGE_USER) {
+	/* Below is unlikely -- only for large user pages or similar */
+	if (pte_user(flags)) {
 	   TLBCAM[index].MAS3 |= MAS3_UX | MAS3_UR;
 	   TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_UW : 0);
 	}
@@ -185,6 +181,12 @@ unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx)
 	return amount_mapped;
 }
 
+#ifdef CONFIG_PPC32
+
+#if defined(CONFIG_LOWMEM_CAM_NUM_BOOL) && (CONFIG_LOWMEM_CAM_NUM >= NUM_TLBCAMS)
+#error "LOWMEM_CAM_NUM must be less than NUM_TLBCAMS"
+#endif
+
 unsigned long __init mmu_mapin_ram(unsigned long top)
 {
 	return tlbcam_addrs[tlbcam_index - 1].limit - PAGE_OFFSET + 1;
@@ -225,3 +227,4 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
 	/* 64M mapped initially according to head_fsl_booke.S */
 	memblock_set_current_limit(min_t(u64, limit, 0x04000000));
 }
+#endif

arch/powerpc/mm/mmu_context_nohash.c

@@ -334,7 +334,7 @@ static int __cpuinit mmu_context_cpu_notify(struct notifier_block *self,
 	/* We don't touch CPU 0 map, it's allocated at aboot and kept
 	 * around forever
 	 */
-	if (cpu == 0)
+	if (cpu == boot_cpuid)
 		return NOTIFY_OK;
 
 	switch (action) {
@@ -420,9 +420,11 @@ void __init mmu_context_init(void)
 	 */
 	context_map = alloc_bootmem(CTX_MAP_SIZE);
 	context_mm = alloc_bootmem(sizeof(void *) * (last_context + 1));
+#ifndef CONFIG_SMP
 	stale_map[0] = alloc_bootmem(CTX_MAP_SIZE);
+#else
+	stale_map[boot_cpuid] = alloc_bootmem(CTX_MAP_SIZE);
 
-#ifdef CONFIG_SMP
 	register_cpu_notifier(&mmu_context_cpu_nb);
 #endif
 

arch/powerpc/mm/mmu_decl.h

@@ -140,10 +140,13 @@ extern void wii_memory_fixups(void);
 extern void MMU_init_hw(void);
 extern unsigned long mmu_mapin_ram(unsigned long top);
 
-#elif defined(CONFIG_FSL_BOOKE)
+#elif defined(CONFIG_PPC_FSL_BOOK3E)
+extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx);
+#ifdef CONFIG_PPC32
 extern void MMU_init_hw(void);
 extern unsigned long mmu_mapin_ram(unsigned long top);
 extern void adjust_total_lowmem(void);
+#endif
 extern void loadcam_entry(unsigned int index);
 
 struct tlbcam {

arch/powerpc/mm/tlb_nohash.c

@@ -349,11 +349,47 @@ void tlb_flush_pgtable(struct mmu_gather *tlb, unsigned long address)
 
 static void setup_page_sizes(void)
 {
-	unsigned int tlb0cfg = mfspr(SPRN_TLB0CFG);
-	unsigned int tlb0ps = mfspr(SPRN_TLB0PS);
-	unsigned int eptcfg = mfspr(SPRN_EPTCFG);
+	unsigned int tlb0cfg;
+	unsigned int tlb0ps;
+	unsigned int eptcfg;
 	int i, psize;
 
+#ifdef CONFIG_PPC_FSL_BOOK3E
+	unsigned int mmucfg = mfspr(SPRN_MMUCFG);
+
+	if (((mmucfg & MMUCFG_MAVN) == MMUCFG_MAVN_V1) &&
+		(mmu_has_feature(MMU_FTR_TYPE_FSL_E))) {
+		unsigned int tlb1cfg = mfspr(SPRN_TLB1CFG);
+		unsigned int min_pg, max_pg;
+
+		min_pg = (tlb1cfg & TLBnCFG_MINSIZE) >> TLBnCFG_MINSIZE_SHIFT;
+		max_pg = (tlb1cfg & TLBnCFG_MAXSIZE) >> TLBnCFG_MAXSIZE_SHIFT;
+
+		for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
+			struct mmu_psize_def *def;
+			unsigned int shift;
+
+			def = &mmu_psize_defs[psize];
+			shift = def->shift;
+
+			if (shift == 0)
+				continue;
+
+			/* adjust to be in terms of 4^shift Kb */
+			shift = (shift - 10) >> 1;
+
+			if ((shift >= min_pg) && (shift <= max_pg))
+				def->flags |= MMU_PAGE_SIZE_DIRECT;
+		}
+
+		goto no_indirect;
+	}
+#endif
+
+	tlb0cfg = mfspr(SPRN_TLB0CFG);
+	tlb0ps = mfspr(SPRN_TLB0PS);
+	eptcfg = mfspr(SPRN_EPTCFG);
+
 	/* Look for supported direct sizes */
 	for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
 		struct mmu_psize_def *def = &mmu_psize_defs[psize];
@@ -505,6 +541,20 @@ static void __early_init_mmu(int boot_cpu)
 	 */
 	linear_map_top = memblock_end_of_DRAM();
 
+#ifdef CONFIG_PPC_FSL_BOOK3E
+	if (mmu_has_feature(MMU_FTR_TYPE_FSL_E)) {
+		unsigned int num_cams;
+
+		/* use a quarter of the TLBCAM for bolted linear map */
+		num_cams = (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) / 4;
+		linear_map_top = map_mem_in_cams(linear_map_top, num_cams);
+
+		/* limit memory so we dont have linear faults */
+		memblock_enforce_memory_limit(linear_map_top);
+		memblock_analyze();
+	}
+#endif
+
 	/* A sync won't hurt us after mucking around with
 	 * the MMU configuration
 	 */

arch/powerpc/mm/tlb_nohash_low.S

@@ -367,7 +367,7 @@ _GLOBAL(set_context)
 #error Unsupported processor type !
 #endif
 
-#if defined(CONFIG_FSL_BOOKE)
+#if defined(CONFIG_PPC_FSL_BOOK3E)
 /*
  * extern void loadcam_entry(unsigned int index)
  *

arch/powerpc/oprofile/Makefile

@@ -1,8 +1,6 @@
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
-ifeq ($(CONFIG_PPC64),y)
-EXTRA_CFLAGS	+= -mno-minimal-toc
-endif
+ccflags-$(CONFIG_PPC64)	:= -mno-minimal-toc
 
 obj-$(CONFIG_OPROFILE) += oprofile.o
 

arch/powerpc/oprofile/backtrace.c

@@ -105,7 +105,7 @@ void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth)
 		}
 	} else {
 #ifdef CONFIG_PPC64
-		if (!test_thread_flag(TIF_32BIT)) {
+		if (!is_32bit_task()) {
 			while (depth--) {
 				sp = user_getsp64(sp, first_frame);
 				if (!sp)

arch/powerpc/oprofile/op_model_fsl_emb.c

@@ -2,7 +2,7 @@
  * Freescale Embedded oprofile support, based on ppc64 oprofile support
  * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
  *
- * Copyright (c) 2004 Freescale Semiconductor, Inc
+ * Copyright (c) 2004, 2010 Freescale Semiconductor, Inc
  *
  * Author: Andy Fleming
  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
@@ -321,9 +321,6 @@ static void fsl_emb_handle_interrupt(struct pt_regs *regs,
 	int val;
 	int i;
 
-	/* set the PMM bit (see comment below) */
-	mtmsr(mfmsr() | MSR_PMM);
-
 	pc = regs->nip;
 	is_kernel = is_kernel_addr(pc);
 
@@ -340,9 +337,13 @@ static void fsl_emb_handle_interrupt(struct pt_regs *regs,
 	}
 
 	/* The freeze bit was set by the interrupt. */
-	/* Clear the freeze bit, and reenable the interrupt.
-	 * The counters won't actually start until the rfi clears
-	 * the PMM bit */
+	/* Clear the freeze bit, and reenable the interrupt.  The
+	 * counters won't actually start until the rfi clears the PMM
+	 * bit.  The PMM bit should not be set until after the interrupt
+	 * is cleared to avoid it getting lost in some hypervisor
+	 * environments.
+	 */
+	mtmsr(mfmsr() | MSR_PMM);
 	pmc_start_ctrs(1);
 }
 

arch/powerpc/platforms/44x/Kconfig

@@ -17,6 +17,16 @@ config BAMBOO
 	help
 	  This option enables support for the IBM PPC440EP evaluation board.
 
+config BLUESTONE
+	bool "Bluestone"
+	depends on 44x
+	default n
+	select PPC44x_SIMPLE
+	select APM821xx
+	select IBM_NEW_EMAC_RGMII
+	help
+	  This option enables support for the APM APM821xx Evaluation board.
+
 config EBONY
 	bool "Ebony"
 	depends on 44x
@@ -293,6 +303,12 @@ config 460SX
 	select IBM_NEW_EMAC_ZMII
 	select IBM_NEW_EMAC_TAH
 
+config APM821xx
+	bool
+	select PPC_FPU
+	select IBM_NEW_EMAC_EMAC4
+	select IBM_NEW_EMAC_TAH
+
 # 44x errata/workaround config symbols, selected by the CPU models above
 config IBM440EP_ERR42
 	bool

arch/powerpc/platforms/44x/ppc44x_simple.c

@@ -52,6 +52,7 @@ machine_device_initcall(ppc44x_simple, ppc44x_device_probe);
 static char *board[] __initdata = {
 	"amcc,arches",
 	"amcc,bamboo",
+	"amcc,bluestone",
 	"amcc,canyonlands",
 	"amcc,glacier",
 	"ibm,ebony",

arch/powerpc/platforms/83xx/Kconfig

@@ -10,12 +10,12 @@ menuconfig PPC_83xx
 if PPC_83xx
 
 config MPC830x_RDB
-	bool "Freescale MPC830x RDB"
+	bool "Freescale MPC830x RDB and derivatives"
 	select DEFAULT_UIMAGE
 	select PPC_MPC831x
 	select FSL_GTM
 	help
-	  This option enables support for the MPC8308 RDB board.
+	  This option enables support for the MPC8308 RDB and MPC8308 P1M boards.
 
 config MPC831x_RDB
 	bool "Freescale MPC831x RDB"

arch/powerpc/platforms/83xx/mpc830x_rdb.c

@@ -65,7 +65,8 @@ static int __init mpc830x_rdb_probe(void)
 	unsigned long root = of_get_flat_dt_root();
 
 	return of_flat_dt_is_compatible(root, "MPC8308RDB") ||
-	       of_flat_dt_is_compatible(root, "fsl,mpc8308rdb");
+	       of_flat_dt_is_compatible(root, "fsl,mpc8308rdb") ||
+	       of_flat_dt_is_compatible(root, "denx,mpc8308_p1m");
 }
 
 static struct of_device_id __initdata of_bus_ids[] = {

arch/powerpc/platforms/85xx/Kconfig

@@ -11,6 +11,8 @@ menuconfig FSL_SOC_BOOKE
 
 if FSL_SOC_BOOKE
 
+if PPC32
+
 config MPC8540_ADS
 	bool "Freescale MPC8540 ADS"
 	select DEFAULT_UIMAGE
@@ -153,10 +155,20 @@ config SBC8560
 	help
 	  This option enables support for the Wind River SBC8560 board
 
+config P3041_DS
+	bool "Freescale P3041 DS"
+	select DEFAULT_UIMAGE
+	select PPC_E500MC
+	select PHYS_64BIT
+	select SWIOTLB
+	select MPC8xxx_GPIO
+	select HAS_RAPIDIO
+	help
+	  This option enables support for the P3041 DS board
+
 config P4080_DS
 	bool "Freescale P4080 DS"
 	select DEFAULT_UIMAGE
-	select PPC_FSL_BOOK3E
 	select PPC_E500MC
 	select PHYS_64BIT
 	select SWIOTLB
@@ -165,6 +177,20 @@ config P4080_DS
 	help
 	  This option enables support for the P4080 DS board
 
+endif # PPC32
+
+config P5020_DS
+	bool "Freescale P5020 DS"
+	select DEFAULT_UIMAGE
+	select E500
+	select PPC_E500MC
+	select PHYS_64BIT
+	select SWIOTLB
+	select MPC8xxx_GPIO
+	select HAS_RAPIDIO
+	help
+	  This option enables support for the P5020 DS board
+
 endif # FSL_SOC_BOOKE
 
 config TQM85xx

arch/powerpc/platforms/85xx/Makefile

@@ -11,7 +11,9 @@ obj-$(CONFIG_MPC85xx_DS)  += mpc85xx_ds.o
 obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
 obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o
 obj-$(CONFIG_P1022_DS)    += p1022_ds.o
+obj-$(CONFIG_P3041_DS)    += p3041_ds.o corenet_ds.o
 obj-$(CONFIG_P4080_DS)    += p4080_ds.o corenet_ds.o
+obj-$(CONFIG_P5020_DS)    += p5020_ds.o corenet_ds.o
 obj-$(CONFIG_STX_GP3)	  += stx_gp3.o
 obj-$(CONFIG_TQM85xx)	  += tqm85xx.o
 obj-$(CONFIG_SBC8560)     += sbc8560.o

arch/powerpc/platforms/85xx/p1022_ds.c

@@ -112,6 +112,8 @@ static struct of_device_id __initdata p1022_ds_ids[] = {
 	{ .compatible = "soc", },
 	{ .compatible = "simple-bus", },
 	{ .compatible = "gianfar", },
+	/* So that the DMA channel nodes can be probed individually: */
+	{ .compatible = "fsl,eloplus-dma", },
 	{},
 };
 

arch/powerpc/platforms/85xx/p3041_ds.c

@@ -0,0 +1,64 @@
+/*
+ * P3041 DS Setup
+ *
+ * Maintained by Kumar Gala (see MAINTAINERS for contact information)
+ *
+ * Copyright 2009-2010 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/phy.h>
+
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <linux/of_platform.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+#include "corenet_ds.h"
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init p3041_ds_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	return of_flat_dt_is_compatible(root, "fsl,P3041DS");
+}
+
+define_machine(p3041_ds) {
+	.name			= "P3041 DS",
+	.probe			= p3041_ds_probe,
+	.setup_arch		= corenet_ds_setup_arch,
+	.init_IRQ		= corenet_ds_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+#endif
+	.get_irq		= mpic_get_coreint_irq,
+	.restart		= fsl_rstcr_restart,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};
+
+machine_device_initcall(p3041_ds, corenet_ds_publish_devices);
+
+#ifdef CONFIG_SWIOTLB
+machine_arch_initcall(p3041_ds, swiotlb_setup_bus_notifier);
+#endif

arch/powerpc/platforms/85xx/p5020_ds.c

@@ -0,0 +1,69 @@
+/*
+ * P5020 DS Setup
+ *
+ * Maintained by Kumar Gala (see MAINTAINERS for contact information)
+ *
+ * Copyright 2009-2010 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/phy.h>
+
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <linux/of_platform.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+#include "corenet_ds.h"
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init p5020_ds_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	return of_flat_dt_is_compatible(root, "fsl,P5020DS");
+}
+
+define_machine(p5020_ds) {
+	.name			= "P5020 DS",
+	.probe			= p5020_ds_probe,
+	.setup_arch		= corenet_ds_setup_arch,
+	.init_IRQ		= corenet_ds_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+#endif
+/* coreint doesn't play nice with lazy EE, use legacy mpic for now */
+#ifdef CONFIG_PPC64
+	.get_irq		= mpic_get_irq,
+#else
+	.get_irq		= mpic_get_coreint_irq,
+#endif
+	.restart		= fsl_rstcr_restart,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};
+
+machine_device_initcall(p5020_ds, corenet_ds_publish_devices);
+
+#ifdef CONFIG_SWIOTLB
+machine_arch_initcall(p5020_ds, swiotlb_setup_bus_notifier);
+#endif

arch/powerpc/platforms/85xx/smp.c

@@ -16,6 +16,7 @@
 #include <linux/delay.h>
 #include <linux/of.h>
 #include <linux/kexec.h>
+#include <linux/highmem.h>
 
 #include <asm/machdep.h>
 #include <asm/pgtable.h>
@@ -79,6 +80,7 @@ smp_85xx_kick_cpu(int nr)
 	local_irq_save(flags);
 
 	out_be32(bptr_vaddr + BOOT_ENTRY_PIR, nr);
+#ifdef CONFIG_PPC32
 	out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start));
 
 	if (!ioremappable)
@@ -88,6 +90,12 @@ smp_85xx_kick_cpu(int nr)
 	/* Wait a bit for the CPU to ack. */
 	while ((__secondary_hold_acknowledge != nr) && (++n < 1000))
 		mdelay(1);
+#else
+	out_be64((u64 *)(bptr_vaddr + BOOT_ENTRY_ADDR_UPPER),
+		__pa((u64)*((unsigned long long *) generic_secondary_smp_init)));
+
+	smp_generic_kick_cpu(nr);
+#endif
 
 	local_irq_restore(flags);
 
@@ -114,19 +122,15 @@ struct smp_ops_t smp_85xx_ops = {
 };
 
 #ifdef CONFIG_KEXEC
-static int kexec_down_cpus = 0;
+atomic_t kexec_down_cpus = ATOMIC_INIT(0);
 
 void mpc85xx_smp_kexec_cpu_down(int crash_shutdown, int secondary)
 {
-	mpic_teardown_this_cpu(1);
-
-	/* When crashing, this gets called on all CPU's we only
-	 * take down the non-boot cpus */
-	if (smp_processor_id() != boot_cpuid)
-	{
-		local_irq_disable();
-		kexec_down_cpus++;
+	local_irq_disable();
 
+	if (secondary) {
+		atomic_inc(&kexec_down_cpus);
+		/* loop forever */
 		while (1);
 	}
 }
@@ -137,16 +141,65 @@ static void mpc85xx_smp_kexec_down(void *arg)
 		ppc_md.kexec_cpu_down(0,1);
 }
 
-static void mpc85xx_smp_machine_kexec(struct kimage *image)
+static void map_and_flush(unsigned long paddr)
 {
-	int timeout = 2000;
+	struct page *page = pfn_to_page(paddr >> PAGE_SHIFT);
+	unsigned long kaddr  = (unsigned long)kmap(page);
+
+	flush_dcache_range(kaddr, kaddr + PAGE_SIZE);
+	kunmap(page);
+}
+
+/**
+ * Before we reset the other cores, we need to flush relevant cache
+ * out to memory so we don't get anything corrupted, some of these flushes
+ * are performed out of an overabundance of caution as interrupts are not
+ * disabled yet and we can switch cores
+ */
+static void mpc85xx_smp_flush_dcache_kexec(struct kimage *image)
+{
+	kimage_entry_t *ptr, entry;
+	unsigned long paddr;
 	int i;
 
-	set_cpus_allowed(current, cpumask_of_cpu(boot_cpuid));
+	if (image->type == KEXEC_TYPE_DEFAULT) {
+		/* normal kexec images are stored in temporary pages */
+		for (ptr = &image->head; (entry = *ptr) && !(entry & IND_DONE);
+		     ptr = (entry & IND_INDIRECTION) ?
+				phys_to_virt(entry & PAGE_MASK) : ptr + 1) {
+			if (!(entry & IND_DESTINATION)) {
+				map_and_flush(entry);
+			}
+		}
+		/* flush out last IND_DONE page */
+		map_and_flush(entry);
+	} else {
+		/* crash type kexec images are copied to the crash region */
+		for (i = 0; i < image->nr_segments; i++) {
+			struct kexec_segment *seg = &image->segment[i];
+			for (paddr = seg->mem; paddr < seg->mem + seg->memsz;
+			     paddr += PAGE_SIZE) {
+				map_and_flush(paddr);
+			}
+		}
+	}
+
+	/* also flush the kimage struct to be passed in as well */
+	flush_dcache_range((unsigned long)image,
+			   (unsigned long)image + sizeof(*image));
+}
+
+static void mpc85xx_smp_machine_kexec(struct kimage *image)
+{
+	int timeout = INT_MAX;
+	int i, num_cpus = num_present_cpus();
+
+	mpc85xx_smp_flush_dcache_kexec(image);
 
-	smp_call_function(mpc85xx_smp_kexec_down, NULL, 0);
+	if (image->type == KEXEC_TYPE_DEFAULT)
+		smp_call_function(mpc85xx_smp_kexec_down, NULL, 0);
 
-	while ( (kexec_down_cpus != (num_online_cpus() - 1)) &&
+	while ( (atomic_read(&kexec_down_cpus) != (num_cpus - 1)) &&
 		( timeout > 0 ) )
 	{
 		timeout--;
@@ -155,7 +208,7 @@ static void mpc85xx_smp_machine_kexec(struct kimage *image)
 	if ( !timeout )
 		printk(KERN_ERR "Unable to bring down secondary cpu(s)");
 
-	for (i = 0; i < num_present_cpus(); i++)
+	for (i = 0; i < num_cpus; i++)
 	{
 		if ( i == smp_processor_id() ) continue;
 		mpic_reset_core(i);

arch/powerpc/platforms/Kconfig.cputype

@@ -125,6 +125,7 @@ config 8xx
 
 config E500
 	select FSL_EMB_PERFMON
+	select PPC_FSL_BOOK3E
 	bool
 
 config PPC_E500MC
@@ -166,9 +167,14 @@ config BOOKE
 
 config FSL_BOOKE
 	bool
-	depends on E200 || E500
+	depends on (E200 || E500) && PPC32
 	default y
 
+# this is for common code between PPC32 & PPC64 FSL BOOKE
+config PPC_FSL_BOOK3E
+	bool
+	select FSL_EMB_PERFMON
+	default y if FSL_BOOKE
 
 config PTE_64BIT
 	bool

arch/powerpc/platforms/cell/ras.c

@@ -173,8 +173,10 @@ static int __init cbe_ptcal_enable(void)
 		return -ENODEV;
 
 	size = of_get_property(np, "ibm,cbe-ptcal-size", NULL);
-	if (!size)
+	if (!size) {
+		of_node_put(np);
 		return -ENODEV;
+	}
 
 	pr_debug("%s: enabling PTCAL, size = 0x%x\n", __func__, *size);
 	order = get_order(*size);

arch/powerpc/platforms/cell/spider-pic.c

@@ -258,8 +258,10 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 		return NO_IRQ;
 	imap += intsize + 1;
 	tmp = of_get_property(iic, "#interrupt-cells", NULL);
-	if (tmp == NULL)
+	if (tmp == NULL) {
+		of_node_put(iic);
 		return NO_IRQ;
+	}
 	intsize = *tmp;
 	/* Assume unit is last entry of interrupt specifier */
 	unit = imap[intsize - 1];

arch/powerpc/platforms/cell/spufs/file.c

@@ -154,6 +154,7 @@ static const struct file_operations __fops = {				\
 	.release = spufs_attr_release,					\
 	.read	 = spufs_attr_read,					\
 	.write	 = spufs_attr_write,					\
+	.llseek  = generic_file_llseek,					\
 };
 
 
@@ -521,6 +522,7 @@ static const struct file_operations spufs_cntl_fops = {
 	.release = spufs_cntl_release,
 	.read = simple_attr_read,
 	.write = simple_attr_write,
+	.llseek	= generic_file_llseek,
 	.mmap = spufs_cntl_mmap,
 };
 
@@ -714,6 +716,7 @@ static ssize_t spufs_mbox_read(struct file *file, char __user *buf,
 static const struct file_operations spufs_mbox_fops = {
 	.open	= spufs_pipe_open,
 	.read	= spufs_mbox_read,
+	.llseek	= no_llseek,
 };
 
 static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf,
@@ -743,6 +746,7 @@ static ssize_t spufs_mbox_stat_read(struct file *file, char __user *buf,
 static const struct file_operations spufs_mbox_stat_fops = {
 	.open	= spufs_pipe_open,
 	.read	= spufs_mbox_stat_read,
+	.llseek = no_llseek,
 };
 
 /* low-level ibox access function */
@@ -863,6 +867,7 @@ static const struct file_operations spufs_ibox_fops = {
 	.read	= spufs_ibox_read,
 	.poll	= spufs_ibox_poll,
 	.fasync	= spufs_ibox_fasync,
+	.llseek = no_llseek,
 };
 
 static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf,
@@ -890,6 +895,7 @@ static ssize_t spufs_ibox_stat_read(struct file *file, char __user *buf,
 static const struct file_operations spufs_ibox_stat_fops = {
 	.open	= spufs_pipe_open,
 	.read	= spufs_ibox_stat_read,
+	.llseek = no_llseek,
 };
 
 /* low-level mailbox write */
@@ -1011,6 +1017,7 @@ static const struct file_operations spufs_wbox_fops = {
 	.write	= spufs_wbox_write,
 	.poll	= spufs_wbox_poll,
 	.fasync	= spufs_wbox_fasync,
+	.llseek = no_llseek,
 };
 
 static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf,
@@ -1038,6 +1045,7 @@ static ssize_t spufs_wbox_stat_read(struct file *file, char __user *buf,
 static const struct file_operations spufs_wbox_stat_fops = {
 	.open	= spufs_pipe_open,
 	.read	= spufs_wbox_stat_read,
+	.llseek = no_llseek,
 };
 
 static int spufs_signal1_open(struct inode *inode, struct file *file)
@@ -1166,6 +1174,7 @@ static const struct file_operations spufs_signal1_fops = {
 	.read = spufs_signal1_read,
 	.write = spufs_signal1_write,
 	.mmap = spufs_signal1_mmap,
+	.llseek = no_llseek,
 };
 
 static const struct file_operations spufs_signal1_nosched_fops = {
@@ -1173,6 +1182,7 @@ static const struct file_operations spufs_signal1_nosched_fops = {
 	.release = spufs_signal1_release,
 	.write = spufs_signal1_write,
 	.mmap = spufs_signal1_mmap,
+	.llseek = no_llseek,
 };
 
 static int spufs_signal2_open(struct inode *inode, struct file *file)
@@ -1305,6 +1315,7 @@ static const struct file_operations spufs_signal2_fops = {
 	.read = spufs_signal2_read,
 	.write = spufs_signal2_write,
 	.mmap = spufs_signal2_mmap,
+	.llseek = no_llseek,
 };
 
 static const struct file_operations spufs_signal2_nosched_fops = {
@@ -1312,6 +1323,7 @@ static const struct file_operations spufs_signal2_nosched_fops = {
 	.release = spufs_signal2_release,
 	.write = spufs_signal2_write,
 	.mmap = spufs_signal2_mmap,
+	.llseek = no_llseek,
 };
 
 /*
@@ -1451,6 +1463,7 @@ static const struct file_operations spufs_mss_fops = {
 	.open	 = spufs_mss_open,
 	.release = spufs_mss_release,
 	.mmap	 = spufs_mss_mmap,
+	.llseek  = no_llseek,
 };
 
 static int
@@ -1508,6 +1521,7 @@ static const struct file_operations spufs_psmap_fops = {
 	.open	 = spufs_psmap_open,
 	.release = spufs_psmap_release,
 	.mmap	 = spufs_psmap_mmap,
+	.llseek  = no_llseek,
 };
 
 
@@ -1871,6 +1885,7 @@ static const struct file_operations spufs_mfc_fops = {
 	.fsync	 = spufs_mfc_fsync,
 	.fasync	 = spufs_mfc_fasync,
 	.mmap	 = spufs_mfc_mmap,
+	.llseek  = no_llseek,
 };
 
 static int spufs_npc_set(void *data, u64 val)
@@ -2246,6 +2261,7 @@ static ssize_t spufs_dma_info_read(struct file *file, char __user *buf,
 static const struct file_operations spufs_dma_info_fops = {
 	.open = spufs_info_open,
 	.read = spufs_dma_info_read,
+	.llseek = no_llseek,
 };
 
 static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx,
@@ -2299,6 +2315,7 @@ static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf,
 static const struct file_operations spufs_proxydma_info_fops = {
 	.open = spufs_info_open,
 	.read = spufs_proxydma_info_read,
+	.llseek = no_llseek,
 };
 
 static int spufs_show_tid(struct seq_file *s, void *private)
@@ -2585,6 +2602,7 @@ static const struct file_operations spufs_switch_log_fops = {
 	.read		= spufs_switch_log_read,
 	.poll		= spufs_switch_log_poll,
 	.release	= spufs_switch_log_release,
+	.llseek		= no_llseek,
 };
 
 /**

arch/powerpc/platforms/chrp/nvram.c

@@ -74,8 +74,10 @@ void __init chrp_nvram_init(void)
 		return;
 
 	nbytes_p = of_get_property(nvram, "#bytes", &proplen);
-	if (nbytes_p == NULL || proplen != sizeof(unsigned int))
+	if (nbytes_p == NULL || proplen != sizeof(unsigned int)) {
+		of_node_put(nvram);
 		return;
+	}
 
 	nvram_size = *nbytes_p;
 

arch/powerpc/platforms/iseries/Makefile

@@ -1,4 +1,4 @@
-EXTRA_CFLAGS	+= -mno-minimal-toc
+ccflags-y	:= -mno-minimal-toc
 
 obj-y += exception.o
 obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o dt.o mf.o lpevents.o \

arch/powerpc/platforms/iseries/dt.c

@@ -243,7 +243,7 @@ static void __init dt_cpus(struct iseries_flat_dt *dt)
 	pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
 
 	for (i = 0; i < NR_CPUS; i++) {
-		if (lppaca[i].dyn_proc_status >= 2)
+		if (lppaca_of(i).dyn_proc_status >= 2)
 			continue;
 
 		snprintf(p, 32 - (p - buf), "@%d", i);
@@ -251,7 +251,7 @@ static void __init dt_cpus(struct iseries_flat_dt *dt)
 
 		dt_prop_str(dt, "device_type", device_type_cpu);
 
-		index = lppaca[i].dyn_hv_phys_proc_index;
+		index = lppaca_of(i).dyn_hv_phys_proc_index;
 		d = &xIoHriProcessorVpd[index];
 
 		dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);