xiaomi-sm8450/android_kernel_xiaomi_sm8450
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drm/i915: add fence register management to execbuf

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Adds code to set up fence registers at execbuf time on pre-965 chips as
necessary.  Also fixes up a few bugs in the pre-965 tile register support
(get_order != ffs).  The number of fences available to the kernel defaults
to the hw limit minus 3 (for legacy X front/back/depth), but a new parameter
allows userspace to override that as needed.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Jesse Barnes
2009-01-26 17:10:45 -08:00
committad av Dave Airlie
förälder d9ddcb96e0
incheckning 0f973f2788
6 ändrade filer med 146 tillägg och 20 borttagningar
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4
drivers/gpu/drm/i915/i915_reg.h
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@@ -186,12 +186,12 @@
#define FENCE_REG_830_0 0x2000
#define I830_FENCE_START_MASK 0x07f80000
#define I830_FENCE_TILING_Y_SHIFT 12
#define I830_FENCE_SIZE_BITS(size) ((get_order(size >> 19) - 1) << 8)
#define I830_FENCE_SIZE_BITS(size) ((ffs((size) >> 19) - 1) << 8)
#define I830_FENCE_PITCH_SHIFT 4
#define I830_FENCE_REG_VALID (1<<0)
#define I915_FENCE_START_MASK 0x0ff00000
#define I915_FENCE_SIZE_BITS(size) ((get_order(size >> 20) - 1) << 8)
#define I915_FENCE_SIZE_BITS(size) ((ffs((size) >> 20) - 1) << 8)
#define FENCE_REG_965_0 0x03000
#define I965_FENCE_PITCH_SHIFT 2