diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreend.h | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index c20eac3379e..864e853cc0e 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1578,7 +1578,7 @@ static void evergreen_gpu_init(struct radeon_device *rdev) u32 sq_stack_resource_mgmt_2; u32 sq_stack_resource_mgmt_3; u32 vgt_cache_invalidation; - u32 hdp_host_path_cntl; + u32 hdp_host_path_cntl, tmp; int i, j, num_shader_engines, ps_thread_count; switch (rdev->family) { @@ -2138,6 +2138,10 @@ static void evergreen_gpu_init(struct radeon_device *rdev) for (i = SQ_ALU_CONST_BUFFER_SIZE_HS_0; i < 0x29000; i += 4) WREG32(i, 0); + tmp = RREG32(HDP_MISC_CNTL); + tmp |= HDP_FLUSH_INVALIDATE_CACHE; + WREG32(HDP_MISC_CNTL, tmp); + hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL); WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl); diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 94533849927..75b57e394f2 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -64,6 +64,8 @@ #define GB_BACKEND_MAP 0x98FC #define DMIF_ADDR_CONFIG 0xBD4 #define HDP_ADDR_CONFIG 0x2F48 +#define HDP_MISC_CNTL 0x2F4C +#define HDP_FLUSH_INVALIDATE_CACHE (1 << 0) #define CC_SYS_RB_BACKEND_DISABLE 0x3F88 #define GC_USER_RB_BACKEND_DISABLE 0x9B7C |