AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-25 09:10:55 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/radeon/kms: add info query for max pipes

Browse Source 
The maximum number of pipes is needed by the user space compute
driver to calculate the number of wavefronts per thread group.

Signed-off-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Tom Stellard 2012-03-20 17:17:55 -04:00 committed by Dave Airlie
parent da0df92b57
commit 609c1e15a4
3 changed files with 17 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/radeon/radeon_drv.c
View File

@ -56,9 +56,10 @@
* 2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
* 2.13.0 - virtual memory support, streamout
* 2.14.0 - add evergreen tiling informations
* 2.15.0 - add max_pipes query
*/
#define KMS_DRIVER_MAJOR 2
#define KMS_DRIVER_MINOR 14
#define KMS_DRIVER_MINOR 15
#define KMS_DRIVER_PATCHLEVEL 0
int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
int radeon_driver_unload_kms(struct drm_device *dev);

13
drivers/gpu/drm/radeon/radeon_kms.c
View File

@ -264,6 +264,19 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
return -EINVAL;
value = RADEON_IB_VM_MAX_SIZE;
break;
case RADEON_INFO_MAX_PIPES:
if (rdev->family >= CHIP_CAYMAN)
value = rdev->config.cayman.max_pipes_per_simd;
else if (rdev->family >= CHIP_CEDAR)
value = rdev->config.evergreen.max_pipes;
else if (rdev->family >= CHIP_RV770)
value = rdev->config.rv770.max_pipes;
else if (rdev->family >= CHIP_R600)
value = rdev->config.r600.max_pipes;
else {
return -EINVAL;
}
break;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->request);
return -EINVAL;

2
include/drm/radeon_drm.h
View File

@ -962,6 +962,8 @@ struct drm_radeon_cs {
#define RADEON_INFO_VA_START 0x0e
/* maximum size of ib using the virtual memory cs */
#define RADEON_INFO_IB_VM_MAX_SIZE 0x0f
/* max pipes - needed for compute shaders */
#define RADEON_INFO_MAX_PIPES 0x10
struct drm_radeon_info {
uint32_t request;