git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-23 08:55:56 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: fix mqd corruption for gfx12

Browse Source 
1. restore mqd from backup while resuming
2. use copy_toio and copy_fromio while mqd in vram

Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Frank Min
2024-04-30 21:37:45 +08:00
committed by Alex Deucher
parent ef168e6de9
commit b61467778e
1 changed files with 8 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
View File

@@ -2691,17 +2691,15 @@ static int gfx_v12_0_gfx_init_queue(struct amdgpu_ring *ring)
soc24_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
if (adev->gfx.me.mqd_backup[mqd_idx])
memcpy(adev->gfx.me.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
} else if (amdgpu_in_reset(adev)) {
/* reset mqd with the backup copy */
memcpy_fromio(adev->gfx.me.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
} else {
/* restore mqd with the backup copy */
if (adev->gfx.me.mqd_backup[mqd_idx])
memcpy(mqd, adev->gfx.me.mqd_backup[mqd_idx], sizeof(*mqd));
memcpy_toio(mqd, adev->gfx.me.mqd_backup[mqd_idx], sizeof(*mqd));
/* reset the ring */
ring->wptr = 0;
*ring->wptr_cpu_addr = 0;
amdgpu_ring_clear_ring(ring);
} else {
amdgpu_ring_clear_ring(ring);
}
return 0;
@@ -3040,18 +3038,15 @@ static int gfx_v12_0_kcq_init_queue(struct amdgpu_ring *ring)
mutex_unlock(&adev->srbm_mutex);
if (adev->gfx.mec.mqd_backup[mqd_idx])
memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
} else if (amdgpu_in_reset(adev)) { /* for GPU_RESET case */
/* reset MQD to a clean status */
memcpy_fromio(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
} else {
/* restore MQD to a clean status */
if (adev->gfx.mec.mqd_backup[mqd_idx])
memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
memcpy_toio(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
/* reset ring buffer */
ring->wptr = 0;
atomic64_set((atomic64_t *)ring->wptr_cpu_addr, 0);
amdgpu_ring_clear_ring(ring);
} else {
amdgpu_ring_clear_ring(ring);
}
return 0;