git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-18 06:33:43 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdkfd: Add support for doorbell BOs

Browse Source 
This allows user mode to map doorbell pages into GPUVM address space.
That way GPUs can submit to user mode queues (self-dispatch).

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Felix Kuehling
2018-11-20 21:44:27 -05:00
committed by Alex Deucher
parent 1dde0ea95b
commit b408a54884
3 changed files with 62 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/include/kgd_kfd_interface.h
View File

@@ -188,8 +188,8 @@ struct tile_config {
*/
#define ALLOC_MEM_FLAGS_VRAM (1 << 0)
#define ALLOC_MEM_FLAGS_GTT (1 << 1)
#define ALLOC_MEM_FLAGS_USERPTR (1 << 2) /* TODO */
#define ALLOC_MEM_FLAGS_DOORBELL (1 << 3) /* TODO */
#define ALLOC_MEM_FLAGS_USERPTR (1 << 2)
#define ALLOC_MEM_FLAGS_DOORBELL (1 << 3)
/*
* Allocation flags attributes/access options.