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WSL2-Linux-Kernel
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drm/i915: Use 1/2 compression ratio limit for 16bpp on FBC2 

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-01-23 16:49:12 +02:00 коммит произвёл Daniel Vetter
Родитель 7f2cf220b8
Коммит 3fa2e0eec7
1 изменённых файлов: 19 добавлений и 5 удалений
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24
drivers/gpu/drm/i915/intel_pm.c
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@ -155,7 +155,11 @@ static void g4x_enable_fbc(struct drm_crtc *crtc)
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
u32 dpfc_ctl;
dpfc_ctl = DPFC_CTL_PLANE(intel_crtc->plane) | DPFC_SR_EN | DPFC_CTL_LIMIT_1X;
dpfc_ctl = DPFC_CTL_PLANE(intel_crtc->plane) | DPFC_SR_EN;
if (drm_format_plane_cpp(fb->pixel_format, 0) == 2)
dpfc_ctl |= DPFC_CTL_LIMIT_2X;
else
dpfc_ctl |= DPFC_CTL_LIMIT_1X;
dpfc_ctl |= DPFC_CTL_FENCE_EN | obj->fence_reg;
I915_WRITE(DPFC_FENCE_YOFF, crtc->y);
@ -225,7 +229,11 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc)
dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
dpfc_ctl &= DPFC_RESERVED;
dpfc_ctl |= DPFC_CTL_PLANE(intel_crtc->plane) | DPFC_CTL_LIMIT_1X;
dpfc_ctl |= DPFC_CTL_PLANE(intel_crtc->plane);
if (drm_format_plane_cpp(fb->pixel_format, 0) == 2)
dpfc_ctl |= DPFC_CTL_LIMIT_2X;
else
dpfc_ctl |= DPFC_CTL_LIMIT_1X;
dpfc_ctl |= DPFC_CTL_FENCE_EN;
if (IS_GEN5(dev))
dpfc_ctl |= obj->fence_reg;
@ -275,10 +283,16 @@ static void gen7_enable_fbc(struct drm_crtc *crtc)
struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
u32 dpfc_ctl;
I915_WRITE(ILK_DPFC_CONTROL, DPFC_CTL_EN | DPFC_CTL_LIMIT_1X |
IVB_DPFC_CTL_FENCE_EN |
IVB_DPFC_CTL_PLANE(intel_crtc->plane));
dpfc_ctl = IVB_DPFC_CTL_PLANE(intel_crtc->plane);
if (drm_format_plane_cpp(fb->pixel_format, 0) == 2)
dpfc_ctl |= DPFC_CTL_LIMIT_2X;
else
dpfc_ctl |= DPFC_CTL_LIMIT_1X;
dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;
I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);
if (IS_IVYBRIDGE(dev)) {
/* WaFbcAsynchFlipDisableFbcQueue:ivb */