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drm/amdgpu: fix TC cache flushing 

TC_WB_ACTION must be set according to the docs

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2016-04-28 14:32:44 +02:00 committed by Alex Deucher
parent b4eeed590d
commit f84e63f2ff
2 changed files with 4 additions and 1 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -50,9 +50,11 @@
* KMS wrapper.
* - 3.0.0 - initial driver
* - 3.1.0 - allow reading more status registers (GRBM, SRBM, SDMA, CP)
* - 3.2.0 - GFX8: Uses EOP_TC_WB_ACTION_EN, so UMDs don't have to do the same
* at the end of IBs.
*/
#define KMS_DRIVER_MAJOR 3
#define KMS_DRIVER_MINOR 1
#define KMS_DRIVER_MINOR 2
#define KMS_DRIVER_PATCHLEVEL 0
int amdgpu_vram_limit = 0;

1
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View File

@ -5725,6 +5725,7 @@ static void gfx_v8_0_ring_emit_fence_gfx(struct amdgpu_ring *ring, u64 addr,
amdgpu_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
amdgpu_ring_write(ring, (EOP_TCL1_ACTION_EN |
EOP_TC_ACTION_EN |
EOP_TC_WB_ACTION_EN |
EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) |
EVENT_INDEX(5)));
amdgpu_ring_write(ring, addr & 0xfffffffc);