drm/i915: sprite support for ValleyView v4

No constant alpha yet though, that needs a new ioctl and/or property to
get/set.

v2: use drm_plane_format_cpp (Ville)
    fix up vlv_disable_plane, remove IVB bits (Ville)
    remove error path rework (Ville)
    fix component order confusion (Ville)
    clean up platform init (Ville)
    use compute_offset_xtiled (Ville)
v3: fix up more format confusion (Ville)
    update to new page offset function (Ville)
v4: remove incorrect formats from framebuffer_init (Ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_dma.c

@@ -1630,6 +1630,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	mutex_init(&dev_priv->rps.hw_lock);
 	mutex_init(&dev_priv->modeset_restore_lock);
 
+	dev_priv->num_plane = 1;
+	if (IS_VALLEYVIEW(dev))
+		dev_priv->num_plane = 2;
+
 	ret = drm_vblank_init(dev, INTEL_INFO(dev)->num_pipes);
 	if (ret)
 		goto out_gem_unload;

drivers/gpu/drm/i915/i915_drv.h

@@ -926,6 +926,7 @@ typedef struct drm_i915_private {
 	bool enable_hotplug_processing;
 
 	int num_pch_pll;
+	int num_plane;
 
 	unsigned long cfb_size;
 	unsigned int cfb_fb;

drivers/gpu/drm/i915/i915_reg.h

@@ -3288,6 +3288,63 @@
 #define SPRGAMC(pipe) _PIPE(pipe, _SPRA_GAMC, _SPRB_GAMC)
 #define SPRSURFLIVE(pipe) _PIPE(pipe, _SPRA_SURFLIVE, _SPRB_SURFLIVE)
 
+#define _SPACNTR		0x72180
+#define   SP_ENABLE			(1<<31)
+#define   SP_GEAMMA_ENABLE		(1<<30)
+#define   SP_PIXFORMAT_MASK		(0xf<<26)
+#define   SP_FORMAT_YUV422		(0<<26)
+#define   SP_FORMAT_BGR565		(5<<26)
+#define   SP_FORMAT_BGRX8888		(6<<26)
+#define   SP_FORMAT_BGRA8888		(7<<26)
+#define   SP_FORMAT_RGBX1010102		(8<<26)
+#define   SP_FORMAT_RGBA1010102		(9<<26)
+#define   SP_FORMAT_RGBX8888		(0xe<<26)
+#define   SP_FORMAT_RGBA8888		(0xf<<26)
+#define   SP_SOURCE_KEY			(1<<22)
+#define   SP_YUV_BYTE_ORDER_MASK	(3<<16)
+#define   SP_YUV_ORDER_YUYV		(0<<16)
+#define   SP_YUV_ORDER_UYVY		(1<<16)
+#define   SP_YUV_ORDER_YVYU		(2<<16)
+#define   SP_YUV_ORDER_VYUY		(3<<16)
+#define   SP_TILED			(1<<10)
+#define _SPALINOFF		0x72184
+#define _SPASTRIDE		0x72188
+#define _SPAPOS			0x7218c
+#define _SPASIZE		0x72190
+#define _SPAKEYMINVAL		0x72194
+#define _SPAKEYMSK		0x72198
+#define _SPASURF		0x7219c
+#define _SPAKEYMAXVAL		0x721a0
+#define _SPATILEOFF		0x721a4
+#define _SPACONSTALPHA		0x721a8
+#define _SPAGAMC		0x721f4
+
+#define _SPBCNTR		0x72280
+#define _SPBLINOFF		0x72284
+#define _SPBSTRIDE		0x72288
+#define _SPBPOS			0x7228c
+#define _SPBSIZE		0x72290
+#define _SPBKEYMINVAL		0x72294
+#define _SPBKEYMSK		0x72298
+#define _SPBSURF		0x7229c
+#define _SPBKEYMAXVAL		0x722a0
+#define _SPBTILEOFF		0x722a4
+#define _SPBCONSTALPHA		0x722a8
+#define _SPBGAMC		0x722f4
+
+#define SPCNTR(pipe, plane) _PIPE(pipe * 2 + plane, _SPACNTR, _SPBCNTR)
+#define SPLINOFF(pipe, plane) _PIPE(pipe * 2 + plane, _SPALINOFF, _SPBLINOFF)
+#define SPSTRIDE(pipe, plane) _PIPE(pipe * 2 + plane, _SPASTRIDE, _SPBSTRIDE)
+#define SPPOS(pipe, plane) _PIPE(pipe * 2 + plane, _SPAPOS, _SPBPOS)
+#define SPSIZE(pipe, plane) _PIPE(pipe * 2 + plane, _SPASIZE, _SPBSIZE)
+#define SPKEYMINVAL(pipe, plane) _PIPE(pipe * 2 + plane, _SPAKEYMINVAL, _SPBKEYMINVAL)
+#define SPKEYMSK(pipe, plane) _PIPE(pipe * 2 + plane, _SPAKEYMSK, _SPBKEYMSK)
+#define SPSURF(pipe, plane) _PIPE(pipe * 2 + plane, _SPASURF, _SPBSURF)
+#define SPKEYMAXVAL(pipe, plane) _PIPE(pipe * 2 + plane, _SPAKEYMAXVAL, _SPBKEYMAXVAL)
+#define SPTILEOFF(pipe, plane) _PIPE(pipe * 2 + plane, _SPATILEOFF, _SPBTILEOFF)
+#define SPCONSTALPHA(pipe, plane) _PIPE(pipe * 2 + plane, _SPACONSTALPHA, _SPBCONSTALPHA)
+#define SPGAMC(pipe, plane) _PIPE(pipe * 2 + plane, _SPAGAMC, _SPBGAMC)
+
 /* VBIOS regs */
 #define VGACNTRL		0x71400
 # define VGA_DISP_DISABLE			(1 << 31)

drivers/gpu/drm/i915/intel_display.c

@@ -8867,7 +8867,7 @@ void intel_modeset_init_hw(struct drm_device *dev)
 void intel_modeset_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	int i, ret;
+	int i, j, ret;
 
 	drm_mode_config_init(dev);
 
@@ -8903,9 +8903,12 @@ void intel_modeset_init(struct drm_device *dev)
 
 	for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) {
 		intel_crtc_init(dev, i);
-		ret = intel_plane_init(dev, i);
-		if (ret)
-			DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret);
+		for (j = 0; j < dev_priv->num_plane; j++) {
+			ret = intel_plane_init(dev, i, j);
+			if (ret)
+				DRM_DEBUG_KMS("pipe %d plane %d init failed: %d\n",
+					      i, j, ret);
+		}
 	}
 
 	intel_cpu_pll_init(dev);

drivers/gpu/drm/i915/intel_drv.h

@@ -241,6 +241,7 @@ struct intel_crtc {
 
 struct intel_plane {
 	struct drm_plane base;
+	int plane;
 	enum pipe pipe;
 	struct drm_i915_gem_object *obj;
 	bool can_scale;
@@ -489,7 +490,7 @@ extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
 extern int intel_edp_target_clock(struct intel_encoder *,
 				  struct drm_display_mode *mode);
 extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
-extern int intel_plane_init(struct drm_device *dev, enum pipe pipe);
+extern int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
 extern void intel_flush_display_plane(struct drm_i915_private *dev_priv,
 				      enum plane plane);
 

drivers/gpu/drm/i915/intel_sprite.c

@@ -36,6 +36,174 @@
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
+static void
+vlv_update_plane(struct drm_plane *dplane, struct drm_framebuffer *fb,
+		 struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
+		 unsigned int crtc_w, unsigned int crtc_h,
+		 uint32_t x, uint32_t y,
+		 uint32_t src_w, uint32_t src_h)
+{
+	struct drm_device *dev = dplane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(dplane);
+	int pipe = intel_plane->pipe;
+	int plane = intel_plane->plane;
+	u32 sprctl;
+	unsigned long sprsurf_offset, linear_offset;
+	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
+
+	sprctl = I915_READ(SPCNTR(pipe, plane));
+
+	/* Mask out pixel format bits in case we change it */
+	sprctl &= ~SP_PIXFORMAT_MASK;
+	sprctl &= ~SP_YUV_BYTE_ORDER_MASK;
+	sprctl &= ~SP_TILED;
+
+	switch (fb->pixel_format) {
+	case DRM_FORMAT_YUYV:
+		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
+		break;
+	case DRM_FORMAT_YVYU:
+		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
+		break;
+	case DRM_FORMAT_UYVY:
+		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
+		break;
+	case DRM_FORMAT_VYUY:
+		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
+		break;
+	case DRM_FORMAT_RGB565:
+		sprctl |= SP_FORMAT_BGR565;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		sprctl |= SP_FORMAT_BGRX8888;
+		break;
+	case DRM_FORMAT_ARGB8888:
+		sprctl |= SP_FORMAT_BGRA8888;
+		break;
+	case DRM_FORMAT_XBGR2101010:
+		sprctl |= SP_FORMAT_RGBX1010102;
+		break;
+	case DRM_FORMAT_ABGR2101010:
+		sprctl |= SP_FORMAT_RGBA1010102;
+		break;
+	case DRM_FORMAT_XBGR8888:
+		sprctl |= SP_FORMAT_RGBX8888;
+		break;
+	case DRM_FORMAT_ABGR8888:
+		sprctl |= SP_FORMAT_RGBA8888;
+		break;
+	default:
+		/*
+		 * If we get here one of the upper layers failed to filter
+		 * out the unsupported plane formats
+		 */
+		BUG();
+		break;
+	}
+
+	if (obj->tiling_mode != I915_TILING_NONE)
+		sprctl |= SP_TILED;
+
+	sprctl |= SP_ENABLE;
+
+	/* Sizes are 0 based */
+	src_w--;
+	src_h--;
+	crtc_w--;
+	crtc_h--;
+
+	intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
+
+	I915_WRITE(SPSTRIDE(pipe, plane), fb->pitches[0]);
+	I915_WRITE(SPPOS(pipe, plane), (crtc_y << 16) | crtc_x);
+
+	linear_offset = y * fb->pitches[0] + x * pixel_size;
+	sprsurf_offset = intel_gen4_compute_page_offset(&x, &y,
+							obj->tiling_mode,
+							pixel_size,
+							fb->pitches[0]);
+	linear_offset -= sprsurf_offset;
+
+	if (obj->tiling_mode != I915_TILING_NONE)
+		I915_WRITE(SPTILEOFF(pipe, plane), (y << 16) | x);
+	else
+		I915_WRITE(SPLINOFF(pipe, plane), linear_offset);
+
+	I915_WRITE(SPSIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(SPCNTR(pipe, plane), sprctl);
+	I915_MODIFY_DISPBASE(SPSURF(pipe, plane), obj->gtt_offset +
+			     sprsurf_offset);
+	POSTING_READ(SPSURF(pipe, plane));
+}
+
+static void
+vlv_disable_plane(struct drm_plane *dplane)
+{
+	struct drm_device *dev = dplane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(dplane);
+	int pipe = intel_plane->pipe;
+	int plane = intel_plane->plane;
+
+	I915_WRITE(SPCNTR(pipe, plane), I915_READ(SPCNTR(pipe, plane)) &
+		   ~SP_ENABLE);
+	/* Activate double buffered register update */
+	I915_MODIFY_DISPBASE(SPSURF(pipe, plane), 0);
+	POSTING_READ(SPSURF(pipe, plane));
+}
+
+static int
+vlv_update_colorkey(struct drm_plane *dplane,
+		    struct drm_intel_sprite_colorkey *key)
+{
+	struct drm_device *dev = dplane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(dplane);
+	int pipe = intel_plane->pipe;
+	int plane = intel_plane->plane;
+	u32 sprctl;
+
+	if (key->flags & I915_SET_COLORKEY_DESTINATION)
+		return -EINVAL;
+
+	I915_WRITE(SPKEYMINVAL(pipe, plane), key->min_value);
+	I915_WRITE(SPKEYMAXVAL(pipe, plane), key->max_value);
+	I915_WRITE(SPKEYMSK(pipe, plane), key->channel_mask);
+
+	sprctl = I915_READ(SPCNTR(pipe, plane));
+	sprctl &= ~SP_SOURCE_KEY;
+	if (key->flags & I915_SET_COLORKEY_SOURCE)
+		sprctl |= SP_SOURCE_KEY;
+	I915_WRITE(SPCNTR(pipe, plane), sprctl);
+
+	POSTING_READ(SPKEYMSK(pipe, plane));
+
+	return 0;
+}
+
+static void
+vlv_get_colorkey(struct drm_plane *dplane,
+		 struct drm_intel_sprite_colorkey *key)
+{
+	struct drm_device *dev = dplane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(dplane);
+	int pipe = intel_plane->pipe;
+	int plane = intel_plane->plane;
+	u32 sprctl;
+
+	key->min_value = I915_READ(SPKEYMINVAL(pipe, plane));
+	key->max_value = I915_READ(SPKEYMAXVAL(pipe, plane));
+	key->channel_mask = I915_READ(SPKEYMSK(pipe, plane));
+
+	sprctl = I915_READ(SPCNTR(pipe, plane));
+	if (sprctl & SP_SOURCE_KEY)
+		key->flags = I915_SET_COLORKEY_SOURCE;
+	else
+		key->flags = I915_SET_COLORKEY_NONE;
+}
+
 static void
 ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
 		 struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
@@ -700,8 +868,22 @@ static uint32_t snb_plane_formats[] = {
 	DRM_FORMAT_VYUY,
 };
 
+static uint32_t vlv_plane_formats[] = {
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_XBGR2101010,
+	DRM_FORMAT_ABGR2101010,
+	DRM_FORMAT_YUYV,
+	DRM_FORMAT_YVYU,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_VYUY,
+};
+
 int
-intel_plane_init(struct drm_device *dev, enum pipe pipe)
+intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 {
 	struct intel_plane *intel_plane;
 	unsigned long possible_crtcs;
@@ -740,14 +922,26 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe)
 			intel_plane->can_scale = false;
 		else
 			intel_plane->can_scale = true;
-		intel_plane->max_downscale = 2;
-		intel_plane->update_plane = ivb_update_plane;
-		intel_plane->disable_plane = ivb_disable_plane;
-		intel_plane->update_colorkey = ivb_update_colorkey;
-		intel_plane->get_colorkey = ivb_get_colorkey;
-
-		plane_formats = snb_plane_formats;
-		num_plane_formats = ARRAY_SIZE(snb_plane_formats);
+
+		if (IS_VALLEYVIEW(dev)) {
+			intel_plane->max_downscale = 1;
+			intel_plane->update_plane = vlv_update_plane;
+			intel_plane->disable_plane = vlv_disable_plane;
+			intel_plane->update_colorkey = vlv_update_colorkey;
+			intel_plane->get_colorkey = vlv_get_colorkey;
+
+			plane_formats = vlv_plane_formats;
+			num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
+		} else {
+			intel_plane->max_downscale = 2;
+			intel_plane->update_plane = ivb_update_plane;
+			intel_plane->disable_plane = ivb_disable_plane;
+			intel_plane->update_colorkey = ivb_update_colorkey;
+			intel_plane->get_colorkey = ivb_get_colorkey;
+
+			plane_formats = snb_plane_formats;
+			num_plane_formats = ARRAY_SIZE(snb_plane_formats);
+		}
 		break;
 
 	default:
@@ -756,6 +950,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe)
 	}
 
 	intel_plane->pipe = pipe;
+	intel_plane->plane = plane;
 	possible_crtcs = (1 << pipe);
 	ret = drm_plane_init(dev, &intel_plane->base, possible_crtcs,
 			     &intel_plane_funcs,