[PATCH] drm/radeon: Only flush HDP cache for indirect buffers from userspace

18 Aug 2014

From: Michel Dänzer michel.daenzer@amd.com
It isn't necessary for command streams generated by the kernel (at least
not while we aren't storing ring or indirect buffers in VRAM).
Signed-off-by: Michel Dänzer michel.daenzer@amd.com
---
 drivers/gpu/drm/radeon/cik.c              |  8 ++++----
 drivers/gpu/drm/radeon/cik_sdma.c         |  6 +++---
 drivers/gpu/drm/radeon/evergreen.c        |  4 ++--
 drivers/gpu/drm/radeon/evergreen_dma.c    |  2 +-
 drivers/gpu/drm/radeon/ni.c               |  4 ++--
 drivers/gpu/drm/radeon/r100.c             |  8 ++++----
 drivers/gpu/drm/radeon/r200.c             |  2 +-
 drivers/gpu/drm/radeon/r300.c             |  2 +-
 drivers/gpu/drm/radeon/r420.c             |  4 ++--
 drivers/gpu/drm/radeon/r600.c             |  8 ++++----
 drivers/gpu/drm/radeon/r600_dma.c         |  6 +++---
 drivers/gpu/drm/radeon/radeon.h           |  8 +++++---
 drivers/gpu/drm/radeon/radeon_cs.c        |  6 +++---
 drivers/gpu/drm/radeon/radeon_ib.c        |  5 +++--
 drivers/gpu/drm/radeon/radeon_ring.c      | 16 ++++++++++------
 drivers/gpu/drm/radeon/radeon_semaphore.c |  2 +-
 drivers/gpu/drm/radeon/radeon_test.c      | 18 +++++++++---------
 drivers/gpu/drm/radeon/radeon_uvd.c       |  2 +-
 drivers/gpu/drm/radeon/radeon_vce.c       |  6 +++---
 drivers/gpu/drm/radeon/radeon_vm.c        |  6 +++---
 drivers/gpu/drm/radeon/rv515.c            |  2 +-
 drivers/gpu/drm/radeon/rv770_dma.c        |  2 +-
 drivers/gpu/drm/radeon/si.c               |  6 +++---
 drivers/gpu/drm/radeon/si_dma.c           |  2 +-
 drivers/gpu/drm/radeon/uvd_v1_0.c         |  4 ++--
 25 files changed, 73 insertions(+), 66 deletions(-)

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index b625646..81d07e6 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3801,7 +3801,7 @@ int cik_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
    radeon_ring_write(ring, PACKET3(PACKET3_SET_UCONFIG_REG, 1));
    radeon_ring_write(ring, ((scratch - PACKET3_SET_UCONFIG_REG_START) >> 2));
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
for (i = 0; i < rdev->usec_timeout; i++) {
    	tmp = RREG32(scratch);
@@ -4004,7 +4004,7 @@ int cik_copy_cpdma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
@@ -4103,7 +4103,7 @@ int cik_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
    ib.ptr[1] = ((scratch - PACKET3_SET_UCONFIG_REG_START) >> 2);
    ib.ptr[2] = 0xDEADBEEF;
    ib.length_dw = 3;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
    	radeon_scratch_free(rdev, scratch);
    	radeon_ib_free(rdev, &ib);
@@ -4324,7 +4324,7 @@ static int cik_cp_gfx_start(struct radeon_device *rdev)
    radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
    radeon_ring_write(ring, 0x00000010); /* VGT_OUT_DEALLOC_CNTL */
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
return 0;
 }
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c
index bcf4805..192278b 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -596,7 +596,7 @@ int cik_copy_dma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
@@ -638,7 +638,7 @@ int cik_sdma_ring_test(struct radeon_device *rdev,
    radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr));
    radeon_ring_write(ring, 1); /* number of DWs to follow */
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
for (i = 0; i < rdev->usec_timeout; i++) {
    	tmp = readl(ptr);
@@ -695,7 +695,7 @@ int cik_sdma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
    ib.ptr[4] = 0xDEADBEEF;
    ib.length_dw = 5;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
    	radeon_ib_free(rdev, &ib);
    	DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 4fedd14..dbca60c 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2869,7 +2869,7 @@ static int evergreen_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
    radeon_ring_write(ring, 0);
    radeon_ring_write(ring, 0);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
cp_me = 0xff;
    WREG32(CP_ME_CNTL, cp_me);
@@ -2912,7 +2912,7 @@ static int evergreen_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
    radeon_ring_write(ring, 0x00000010); /*  */
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
return 0;
 }
diff --git a/drivers/gpu/drm/radeon/evergreen_dma.c b/drivers/gpu/drm/radeon/evergreen_dma.c
index 478caef..afaba38 100644
--- a/drivers/gpu/drm/radeon/evergreen_dma.c
+++ b/drivers/gpu/drm/radeon/evergreen_dma.c
@@ -155,7 +155,7 @@ int evergreen_copy_dma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 327b85f..ba89375 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1505,7 +1505,7 @@ static int cayman_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
    radeon_ring_write(ring, 0);
    radeon_ring_write(ring, 0);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
cayman_cp_enable(rdev, true);
@@ -1547,7 +1547,7 @@ static int cayman_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
    radeon_ring_write(ring, 0x00000010); /*  */
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
/* XXX init other rings */
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 04b5940..4c5ec44 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -925,7 +925,7 @@ int r100_copy_blit(struct radeon_device *rdev,
    if (fence) {
    	r = radeon_fence_emit(rdev, fence, RADEON_RING_TYPE_GFX_INDEX);
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    return r;
 }
@@ -958,7 +958,7 @@ void r100_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
    		  RADEON_ISYNC_ANY3D_IDLE2D |
    		  RADEON_ISYNC_WAIT_IDLEGUI |
    		  RADEON_ISYNC_CPSCRATCH_IDLEGUI);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
 }
@@ -3638,7 +3638,7 @@ int r100_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
    }
    radeon_ring_write(ring, PACKET0(scratch, 0));
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    for (i = 0; i < rdev->usec_timeout; i++) {
    	tmp = RREG32(scratch);
    	if (tmp == 0xDEADBEEF) {
@@ -3700,7 +3700,7 @@ int r100_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
    ib.ptr[6] = PACKET2(0);
    ib.ptr[7] = PACKET2(0);
    ib.length_dw = 8;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
    	DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
    	goto free_ib;
diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c
index 58f0473..6778037 100644
--- a/drivers/gpu/drm/radeon/r200.c
+++ b/drivers/gpu/drm/radeon/r200.c
@@ -121,7 +121,7 @@ int r200_copy_dma(struct radeon_device *rdev,
    if (fence) {
    	r = radeon_fence_emit(rdev, fence, RADEON_RING_TYPE_GFX_INDEX);
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    return r;
 }
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 75b3033..1bc4704 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -295,7 +295,7 @@ void r300_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
    radeon_ring_write(ring,
    		  R300_GEOMETRY_ROUND_NEAREST |
    		  R300_COLOR_ROUND_NEAREST);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
 }
static void r300_errata(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 802b192..2828605 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -219,7 +219,7 @@ static void r420_cp_errata_init(struct radeon_device *rdev)
    radeon_ring_write(ring, PACKET0(R300_CP_RESYNC_ADDR, 1));
    radeon_ring_write(ring, rdev->config.r300.resync_scratch);
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
 }
static void r420_cp_errata_fini(struct radeon_device *rdev)
@@ -232,7 +232,7 @@ static void r420_cp_errata_fini(struct radeon_device *rdev)
    radeon_ring_lock(rdev, ring, 8);
    radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
    radeon_ring_write(ring, R300_RB3D_DC_FINISH);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_scratch_free(rdev, rdev->config.r300.resync_scratch);
 }
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index c70a504..1e47701 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2547,7 +2547,7 @@ int r600_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
    radeon_ring_write(ring, 0);
    radeon_ring_write(ring, 0);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
cp_me = 0xff;
    WREG32(R_0086D8_CP_ME_CNTL, cp_me);
@@ -2683,7 +2683,7 @@ int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
    radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
    radeon_ring_write(ring, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    for (i = 0; i < rdev->usec_timeout; i++) {
    	tmp = RREG32(scratch);
    	if (tmp == 0xDEADBEEF)
@@ -2845,7 +2845,7 @@ int r600_copy_cpdma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
@@ -3165,7 +3165,7 @@ int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
    ib.ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
    ib.ptr[2] = 0xDEADBEEF;
    ib.length_dw = 3;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
    	DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
    	goto free_ib;
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c
index 4969cef..51fd985 100644
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -261,7 +261,7 @@ int r600_dma_ring_test(struct radeon_device *rdev,
    radeon_ring_write(ring, rdev->vram_scratch.gpu_addr & 0xfffffffc);
    radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff);
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
for (i = 0; i < rdev->usec_timeout; i++) {
    	tmp = readl(ptr);
@@ -368,7 +368,7 @@ int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
    ib.ptr[3] = 0xDEADBEEF;
    ib.length_dw = 4;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
    	radeon_ib_free(rdev, &ib);
    	DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
@@ -493,7 +493,7 @@ int r600_copy_dma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 9e1732e..706c69a 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -967,7 +967,7 @@ int radeon_ib_get(struct radeon_device *rdev, int ring,
    	  unsigned size);
 void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib);
 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
-		       struct radeon_ib *const_ib);
+		       struct radeon_ib *const_ib, bool hdp_flush);
 int radeon_ib_pool_init(struct radeon_device *rdev);
 void radeon_ib_pool_fini(struct radeon_device *rdev);
 int radeon_ib_ring_tests(struct radeon_device *rdev);
@@ -977,8 +977,10 @@ bool radeon_ring_supports_scratch_reg(struct radeon_device *rdev,
 void radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *cp);
 int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ndw);
 int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ndw);
-void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *cp);
-void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *cp);
+void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *cp,
+			bool hdp_flush);
+void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *cp,
+			       bool hdp_flush);
 void radeon_ring_undo(struct radeon_ring *ring);
 void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *cp);
 int radeon_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index ee712c1..7a1ea99 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -450,7 +450,7 @@ static int radeon_cs_ib_chunk(struct radeon_device *rdev,
    	radeon_vce_note_usage(rdev);
radeon_cs_sync_rings(parser);
-	r = radeon_ib_schedule(rdev, &parser->ib, NULL);
+	r = radeon_ib_schedule(rdev, &parser->ib, NULL, true);
    if (r) {
    	DRM_ERROR("Failed to schedule IB !\n");
    }
@@ -541,9 +541,9 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
if ((rdev->family >= CHIP_TAHITI) &&
        (parser->chunk_const_ib_idx != -1)) {
-		r = radeon_ib_schedule(rdev, &parser->ib, &parser->const_ib);
+		r = radeon_ib_schedule(rdev, &parser->ib, &parser->const_ib, true);
    } else {
-		r = radeon_ib_schedule(rdev, &parser->ib, NULL);
+		r = radeon_ib_schedule(rdev, &parser->ib, NULL, true);
    }
out:
diff --git a/drivers/gpu/drm/radeon/radeon_ib.c b/drivers/gpu/drm/radeon/radeon_ib.c
index 65b0c21..5bf2c0a 100644
--- a/drivers/gpu/drm/radeon/radeon_ib.c
+++ b/drivers/gpu/drm/radeon/radeon_ib.c
@@ -107,6 +107,7 @@ void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib)
  * @rdev: radeon_device pointer
  * @ib: IB object to schedule
  * @const_ib: Const IB to schedule (SI only)
+ * @hdp_flush: Whether or not to perform an HDP cache flush
  *
  * Schedule an IB on the associated ring (all asics).
  * Returns 0 on success, error on failure.
@@ -122,7 +123,7 @@ void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib)
  * to SI there was just a DE IB.
  */
 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
-		       struct radeon_ib *const_ib)
+		       struct radeon_ib *const_ib, bool hdp_flush)
 {
    struct radeon_ring *ring = &rdev->ring[ib->ring];
    int r = 0;
@@ -176,7 +177,7 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
    if (ib->vm)
    	radeon_vm_fence(rdev, ib->vm, ib->fence);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, hdp_flush);
    return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 5b4e0cf..0678998 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -177,16 +177,18 @@ int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *ring, unsig
  *
  * @rdev: radeon_device pointer
  * @ring: radeon_ring structure holding ring information
+ * @hdp_flush: Whether or not to perform an HDP cache flush
  *
  * Update the wptr (write pointer) to tell the GPU to
  * execute new commands on the ring buffer (all asics).
  */
-void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring)
+void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring,
+			bool hdp_flush)
 {
    /* If we are emitting the HDP flush via the ring buffer, we need to
     * do it before padding.
     */
-	if (rdev->asic->ring[ring->idx]->hdp_flush)
+	if (hdp_flush && rdev->asic->ring[ring->idx]->hdp_flush)
    	rdev->asic->ring[ring->idx]->hdp_flush(rdev, ring);
    /* We pad to match fetch size */
    while (ring->wptr & ring->align_mask) {
@@ -196,7 +198,7 @@ void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring)
    /* If we are emitting the HDP flush via MMIO, we need to do it after
     * all CPU writes to VRAM finished.
     */
-	if (rdev->asic->mmio_hdp_flush)
+	if (hdp_flush && rdev->asic->mmio_hdp_flush)
    	rdev->asic->mmio_hdp_flush(rdev);
    radeon_ring_set_wptr(rdev, ring);
 }
@@ -207,12 +209,14 @@ void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring)
  *
  * @rdev: radeon_device pointer
  * @ring: radeon_ring structure holding ring information
+ * @hdp_flush: Whether or not to perform an HDP cache flush
  *
  * Call radeon_ring_commit() then unlock the ring (all asics).
  */
-void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *ring)
+void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *ring,
+			       bool hdp_flush)
 {
-	radeon_ring_commit(rdev, ring);
+	radeon_ring_commit(rdev, ring, hdp_flush);
    mutex_unlock(&rdev->ring_lock);
 }
@@ -372,7 +376,7 @@ int radeon_ring_restore(struct radeon_device *rdev, struct radeon_ring *ring,
    	radeon_ring_write(ring, data[i]);
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    kfree(data);
    return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
index dbd6bcd..56d9fd6 100644
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -179,7 +179,7 @@ int radeon_semaphore_sync_rings(struct radeon_device *rdev,
    		continue;
    	}
-		radeon_ring_commit(rdev, &rdev->ring[i]);
+		radeon_ring_commit(rdev, &rdev->ring[i], false);
    	radeon_fence_note_sync(fence, ring);
semaphore->gpu_addr += 8;
diff --git a/drivers/gpu/drm/radeon/radeon_test.c b/drivers/gpu/drm/radeon/radeon_test.c
index 5adf420..17bc3dc 100644
--- a/drivers/gpu/drm/radeon/radeon_test.c
+++ b/drivers/gpu/drm/radeon/radeon_test.c
@@ -288,7 +288,7 @@ static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
    		return r;
    	}
    	radeon_fence_emit(rdev, fence, ring->idx);
-		radeon_ring_unlock_commit(rdev, ring);
+		radeon_ring_unlock_commit(rdev, ring, false);
    }
    return 0;
 }
@@ -313,7 +313,7 @@ void radeon_test_ring_sync(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringA);
+	radeon_ring_unlock_commit(rdev, ringA, false);
r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
    if (r)
@@ -325,7 +325,7 @@ void radeon_test_ring_sync(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringA);
+	radeon_ring_unlock_commit(rdev, ringA, false);
r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
    if (r)
@@ -344,7 +344,7 @@ void radeon_test_ring_sync(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringB);
+	radeon_ring_unlock_commit(rdev, ringB, false);
r = radeon_fence_wait(fence1, false);
    if (r) {
@@ -365,7 +365,7 @@ void radeon_test_ring_sync(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringB);
+	radeon_ring_unlock_commit(rdev, ringB, false);
r = radeon_fence_wait(fence2, false);
    if (r) {
@@ -408,7 +408,7 @@ static void radeon_test_ring_sync2(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringA);
+	radeon_ring_unlock_commit(rdev, ringA, false);
r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
    if (r)
@@ -420,7 +420,7 @@ static void radeon_test_ring_sync2(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringB);
+	radeon_ring_unlock_commit(rdev, ringB, false);
    r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
    if (r)
    	goto out_cleanup;
@@ -442,7 +442,7 @@ static void radeon_test_ring_sync2(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringC);
+	radeon_ring_unlock_commit(rdev, ringC, false);
for (i = 0; i < 30; ++i) {
    	mdelay(100);
@@ -468,7 +468,7 @@ static void radeon_test_ring_sync2(struct radeon_device *rdev,
    	goto out_cleanup;
    }
    radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
-	radeon_ring_unlock_commit(rdev, ringC);
+	radeon_ring_unlock_commit(rdev, ringC, false);
mdelay(1000);
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 6bf55ec..341848a 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -646,7 +646,7 @@ static int radeon_uvd_send_msg(struct radeon_device *rdev,
    	ib.ptr[i] = PACKET2(0);
    ib.length_dw = 16;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r)
    	goto err;
    ttm_eu_fence_buffer_objects(&ticket, &head, ib.fence);
diff --git a/drivers/gpu/drm/radeon/radeon_vce.c b/drivers/gpu/drm/radeon/radeon_vce.c
index f9b70a4..c7190aa 100644
--- a/drivers/gpu/drm/radeon/radeon_vce.c
+++ b/drivers/gpu/drm/radeon/radeon_vce.c
@@ -368,7 +368,7 @@ int radeon_vce_get_create_msg(struct radeon_device *rdev, int ring,
    for (i = ib.length_dw; i < ib_size_dw; ++i)
    	ib.ptr[i] = 0x0;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
            DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
    }
@@ -425,7 +425,7 @@ int radeon_vce_get_destroy_msg(struct radeon_device *rdev, int ring,
    for (i = ib.length_dw; i < ib_size_dw; ++i)
    	ib.ptr[i] = 0x0;
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
            DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
    }
@@ -715,7 +715,7 @@ int radeon_vce_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
    	return r;
    }
    radeon_ring_write(ring, VCE_CMD_END);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
for (i = 0; i < rdev->usec_timeout; i++) {
            if (vce_v1_0_get_rptr(rdev, ring) != rptr)
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index 898cbb7..95da3fe 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -422,7 +422,7 @@ static int radeon_vm_clear_bo(struct radeon_device *rdev,
    radeon_asic_vm_pad_ib(rdev, &ib);
    WARN_ON(ib.length_dw > 64);
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r)
                 goto error;
@@ -695,7 +695,7 @@ int radeon_vm_update_page_directory(struct radeon_device *rdev,
    	radeon_semaphore_sync_to(ib.semaphore, pd->tbo.sync_obj);
    	radeon_semaphore_sync_to(ib.semaphore, vm->last_id_use);
    	WARN_ON(ib.length_dw > ndw);
-		r = radeon_ib_schedule(rdev, &ib, NULL);
+		r = radeon_ib_schedule(rdev, &ib, NULL, false);
    	if (r) {
    		radeon_ib_free(rdev, &ib);
    		return r;
@@ -959,7 +959,7 @@ int radeon_vm_bo_update(struct radeon_device *rdev,
    WARN_ON(ib.length_dw > ndw);
radeon_semaphore_sync_to(ib.semaphore, vm->fence);
-	r = radeon_ib_schedule(rdev, &ib, NULL);
+	r = radeon_ib_schedule(rdev, &ib, NULL, false);
    if (r) {
    	radeon_ib_free(rdev, &ib);
    	return r;
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 3e21e86..8a477bf 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -124,7 +124,7 @@ void rv515_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
    radeon_ring_write(ring, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
    radeon_ring_write(ring, PACKET0(0x20C8, 0));
    radeon_ring_write(ring, 0);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
 }
int rv515_mc_wait_for_idle(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/rv770_dma.c b/drivers/gpu/drm/radeon/rv770_dma.c
index bbf2e07..74426ac 100644
--- a/drivers/gpu/drm/radeon/rv770_dma.c
+++ b/drivers/gpu/drm/radeon/rv770_dma.c
@@ -90,7 +90,7 @@ int rv770_copy_dma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 011779b..e18f579 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -3541,7 +3541,7 @@ static int si_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, PACKET3_BASE_INDEX(CE_PARTITION_BASE));
    radeon_ring_write(ring, 0xc000);
    radeon_ring_write(ring, 0xe000);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
si_cp_enable(rdev, true);
@@ -3570,7 +3570,7 @@ static int si_cp_start(struct radeon_device *rdev)
    radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
    radeon_ring_write(ring, 0x00000010); /* VGT_OUT_DEALLOC_CNTL */
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
for (i = RADEON_RING_TYPE_GFX_INDEX; i <= CAYMAN_RING_TYPE_CP2_INDEX; ++i) {
    	ring = &rdev->ring[i];
@@ -3580,7 +3580,7 @@ static int si_cp_start(struct radeon_device *rdev)
    	radeon_ring_write(ring, PACKET3_COMPUTE(PACKET3_CLEAR_STATE, 0));
    	radeon_ring_write(ring, 0);
-		radeon_ring_unlock_commit(rdev, ring);
+		radeon_ring_unlock_commit(rdev, ring, false);
    }
return 0;
diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c
index 7165051..7c22baa 100644
--- a/drivers/gpu/drm/radeon/si_dma.c
+++ b/drivers/gpu/drm/radeon/si_dma.c
@@ -275,7 +275,7 @@ int si_copy_dma(struct radeon_device *rdev,
    	return r;
    }
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    radeon_semaphore_free(rdev, &sem, *fence);
return r;
diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c
index be42c81..cda3913 100644
--- a/drivers/gpu/drm/radeon/uvd_v1_0.c
+++ b/drivers/gpu/drm/radeon/uvd_v1_0.c
@@ -124,7 +124,7 @@ int uvd_v1_0_init(struct radeon_device *rdev)
    radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));
    radeon_ring_write(ring, 3);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
done:
    /* lower clocks again */
@@ -331,7 +331,7 @@ int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
    }
    radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));
    radeon_ring_write(ring, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev, ring);
+	radeon_ring_unlock_commit(rdev, ring, false);
    for (i = 0; i < rdev->usec_timeout; i++) {
    	tmp = RREG32(UVD_CONTEXT_ID);
    	if (tmp == 0xDEADBEEF)
-- 
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[PATCH] drm/radeon: Only flush HDP cache for indirect buffers from userspace