Some commands and workarounds require stores to occur to function correctly, so add some scratch space to the HWS page to accommodate them. Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org> --- drivers/gpu/drm/i915/intel_ringbuffer.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 2ea7a31..ef85742 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -181,6 +181,7 @@ intel_read_status_page(struct intel_ring_buffer *ring, * The area from dword 0x20 to 0x3ff is available for driver usage. */ #define I915_GEM_HWS_INDEX 0x20 +#define I915_GEM_SCRATCH_INDEX 0x28 /* Some commands need a scratch store */ void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring); -- 1.7.9.5
