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authorMarek Olšák <marek.olsak@amd.com>2018-05-02 18:27:18 -0400
committerMarek Olšák <marek.olsak@amd.com>2018-05-10 18:39:47 -0400
commitb81149e258a492ed0c81058fb535f6bfdacb36da (patch)
treed7c2da10d3fa6f9c0af31da01c560f721b1a9e34
parenta969f184cf3e8f2d9089fc4df424fa590f967983 (diff)
ac/gpu_info: add kernel_flushes_hdp_before_ib
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
-rw-r--r--src/amd/common/ac_gpu_info.c2
-rw-r--r--src/amd/common/ac_gpu_info.h1
-rw-r--r--src/gallium/drivers/radeonsi/si_buffer.c6
-rw-r--r--src/gallium/winsys/radeon/drm/radeon_drm_winsys.c1
4 files changed, 6 insertions, 4 deletions
diff --git a/src/amd/common/ac_gpu_info.c b/src/amd/common/ac_gpu_info.c
index 1725bb0486..5b72d4985b 100644
--- a/src/amd/common/ac_gpu_info.c
+++ b/src/amd/common/ac_gpu_info.c
@@ -316,6 +316,7 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
/* TODO: Enable this once the kernel handles it efficiently. */
info->has_local_buffers = info->drm_minor >= 20 &&
!info->has_dedicated_vram;
+ info->kernel_flushes_hdp_before_ib = true;
info->num_render_backends = amdinfo->rb_pipes;
/* The value returned by the kernel driver was wrong. */
@@ -463,6 +464,7 @@ void ac_print_gpu_info(struct radeon_info *info)
printf(" has_fence_to_handle = %u\n", info->has_fence_to_handle);
printf(" has_ctx_priority = %u\n", info->has_ctx_priority);
printf(" has_local_buffers = %u\n", info->has_local_buffers);
+ printf(" kernel_flushes_hdp_before_ib = %u\n", info->kernel_flushes_hdp_before_ib);
printf("Shader core info:\n");
printf(" max_shader_clock = %i\n", info->max_shader_clock);
diff --git a/src/amd/common/ac_gpu_info.h b/src/amd/common/ac_gpu_info.h
index 7af6fbfca9..8a9721750a 100644
--- a/src/amd/common/ac_gpu_info.h
+++ b/src/amd/common/ac_gpu_info.h
@@ -96,6 +96,7 @@ struct radeon_info {
bool has_fence_to_handle;
bool has_ctx_priority;
bool has_local_buffers;
+ bool kernel_flushes_hdp_before_ib;
/* Shader cores. */
uint32_t r600_max_quad_pipes; /* wave size / 16 */
diff --git a/src/gallium/drivers/radeonsi/si_buffer.c b/src/gallium/drivers/radeonsi/si_buffer.c
index 504e0c723d..2d68edc340 100644
--- a/src/gallium/drivers/radeonsi/si_buffer.c
+++ b/src/gallium/drivers/radeonsi/si_buffer.c
@@ -125,8 +125,7 @@ void si_init_resource_fields(struct si_screen *sscreen,
/* Older kernels didn't always flush the HDP cache before
* CS execution
*/
- if (sscreen->info.drm_major == 2 &&
- sscreen->info.drm_minor < 40) {
+ if (!sscreen->info.kernel_flushes_hdp_before_ib) {
res->domains = RADEON_DOMAIN_GTT;
res->flags |= RADEON_FLAG_GTT_WC;
break;
@@ -153,8 +152,7 @@ void si_init_resource_fields(struct si_screen *sscreen,
* ensures all CPU writes finish before the GPU
* executes a command stream.
*/
- if (sscreen->info.drm_major == 2 &&
- sscreen->info.drm_minor < 40)
+ if (!sscreen->info.kernel_flushes_hdp_before_ib)
res->domains = RADEON_DOMAIN_GTT;
}
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index 253dd4e2eb..6e3162d1cf 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -528,6 +528,7 @@ static bool do_winsys_init(struct radeon_drm_winsys *ws)
ws->accel_working2 < 3);
ws->info.tcc_cache_line_size = 64; /* TC L2 line size on GCN */
ws->info.ib_start_alignment = 4096;
+ ws->info.kernel_flushes_hdp_before_ib = ws->info.drm_minor >= 40;
ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL;