diff options
| author | Amber Lin <Amber.Lin@amd.com> | 2025-04-29 16:11:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-05-16 13:37:29 -0400 |
| commit | e3d0870a90a8e3f63c486438ac6a77ab828f8d8d (patch) | |
| tree | 193f29bf607acb6671f0d12eadbfb491d03a904e /drivers/gpu/drm/amd/amdgpu | |
| parent | drm/radeon/cik: Clean up doorbells (diff) | |
| download | linux-e3d0870a90a8e3f63c486438ac6a77ab828f8d8d.tar.gz linux-e3d0870a90a8e3f63c486438ac6a77ab828f8d8d.zip | |
drm/amdkfd: Support chain runlists of XNACK+/XNACK-
If the MEC firmware supports chaining runlists of XNACK+/XNACK-
processes, set SQ_CONFIG1 chicken bit and SET_RESOURCES bit 28.
When the MEC/HWS supports it, KFD checks the XNACK+/XNACK- processes mix
happens or not. If it does, enter over-subscription.
Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 31 |
2 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index bd7fc123b8f9..80fa29c26e9e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -62,6 +62,9 @@ */ #define AMDGPU_GMC_FAULT_TIMEOUT 5000ULL +/* XNACK flags */ +#define AMDGPU_GMC_XNACK_FLAG_CHAIN BIT(0) + struct firmware; enum amdgpu_memory_partition { @@ -301,6 +304,7 @@ struct amdgpu_gmc { struct amdgpu_xgmi xgmi; struct amdgpu_irq_src ecc_irq; int noretry; + uint32_t xnack_flags; uint32_t vmid0_page_table_block_size; uint32_t vmid0_page_table_depth; diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c index e6d516b1efd9..c233edf60569 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c @@ -1273,6 +1273,22 @@ static void gfx_v9_4_3_xcc_init_gds_vmid(struct amdgpu_device *adev, int xcc_id) } } +/* For ASICs that needs xnack chain and MEC version supports, set SG_CONFIG1 + * DISABLE_XNACK_CHECK_IN_RETRY_DISABLE bit and inform KFD to set xnack_chain + * bit in SET_RESOURCES + */ +static void gfx_v9_4_3_xcc_init_sq(struct amdgpu_device *adev, int xcc_id) +{ + uint32_t data; + + if (!(adev->gmc.xnack_flags & AMDGPU_GMC_XNACK_FLAG_CHAIN)) + return; + + data = RREG32_SOC15(GC, GET_INST(GC, xcc_id), regSQ_CONFIG1); + data = REG_SET_FIELD(data, SQ_CONFIG1, DISABLE_XNACK_CHECK_IN_RETRY_DISABLE, 1); + WREG32_SOC15(GC, xcc_id, regSQ_CONFIG1, data); +} + static void gfx_v9_4_3_xcc_constants_init(struct amdgpu_device *adev, int xcc_id) { @@ -1317,6 +1333,7 @@ static void gfx_v9_4_3_xcc_constants_init(struct amdgpu_device *adev, gfx_v9_4_3_xcc_init_compute_vmid(adev, xcc_id); gfx_v9_4_3_xcc_init_gds_vmid(adev, xcc_id); + gfx_v9_4_3_xcc_init_sq(adev, xcc_id); } static void gfx_v9_4_3_constants_init(struct amdgpu_device *adev) @@ -1329,6 +1346,20 @@ static void gfx_v9_4_3_constants_init(struct amdgpu_device *adev) adev->gfx.config.db_debug2 = RREG32_SOC15(GC, GET_INST(GC, 0), regDB_DEBUG2); + switch (amdgpu_ip_version(adev, GC_HWIP, 0)) { + /* ToDo: GC 9.4.4 */ + case IP_VERSION(9, 4, 3): + if (adev->gfx.mec_fw_version >= 184) + adev->gmc.xnack_flags |= AMDGPU_GMC_XNACK_FLAG_CHAIN; + break; + case IP_VERSION(9, 5, 0): + if (adev->gfx.mec_fw_version >= 23) + adev->gmc.xnack_flags |= AMDGPU_GMC_XNACK_FLAG_CHAIN; + break; + default: + break; + } + for (i = 0; i < num_xcc; i++) gfx_v9_4_3_xcc_constants_init(adev, i); } |