Adds support for executing the resource streamer on BDW
Signed-off-by: Abdiel Janulgue <abdiel.janul...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_ringbuffer.c | 3 ++-
drivers/gpu/drm/i915/intel_ringbuffer.h | 1 +
3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0eff337..2d5d0ab 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -286,6 +286,7 @@
#define MI_BATCH_NON_SECURE_HSW (1<<13)
#define MI_BATCH_BUFFER_START MI_INSTR(0x31, 0)
#define MI_BATCH_GTT (2<<6) /* aliased with (1<<7) on gen4 */
+#define MI_BATCH_RESOURCE_STREAMER (1<<10)
#define MI_BATCH_BUFFER_START_GEN8 MI_INSTR(0x31, 1)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 40a7aa4..cc0110c 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1810,7 +1810,8 @@ gen8_ring_dispatch_execbuffer(struct intel_ring_buffer
*ring,
return ret;
/* FIXME(BDW): Address space and security selectors. */
- intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8 | (ppgtt<<8));
+ intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8 | (ppgtt<<8) |
+ (flags & I915_DISPATCH_RS ? MI_BATCH_RESOURCE_STREAMER
: 0));
intel_ring_emit(ring, lower_32_bits(offset));
intel_ring_emit(ring, upper_32_bits(offset));
intel_ring_emit(ring, MI_NOOP);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h
b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 72c3c15..cf9e259 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -116,6 +116,7 @@ struct intel_ring_buffer {
unsigned flags);
#define I915_DISPATCH_SECURE 0x1
#define I915_DISPATCH_PINNED 0x2
+#define I915_DISPATCH_RS 0x4
void (*cleanup)(struct intel_ring_buffer *ring);
struct {
--
1.7.9.5
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