diff options
| author | Shiwu Zhang <shiwu.zhang@amd.com> | 2021-12-17 11:27:53 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:40:32 -0400 |
| commit | 0fa49d108386c201b5c2cce68066a9b8f66883a5 (patch) | |
| tree | 8bc51c1e1eb1f368e9bb9c1dfef5b4ef58e13ab1 /drivers/gpu | |
| parent | 99951878b048e39278bb05d96831353eca23b75f (diff) | |
drm/amdgpu: override partition mode through module parameter
Add a module parameter to override the partition mode.
Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 25 |
3 files changed, 38 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0f163d266812..a277bdc86057 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -242,6 +242,8 @@ extern int amdgpu_num_kcq; extern int amdgpu_vcnfw_log; extern int amdgpu_sg_display; +extern uint amdgpu_user_partt_mode; + #define AMDGPU_VM_MAX_NUM_CTX 4096 #define AMDGPU_SG_THRESHOLD (256*1024*1024) #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000 diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 45544ebe576e..9e9da2ac5c82 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -193,6 +193,7 @@ int amdgpu_smartshift_bias; int amdgpu_use_xgmi_p2p = 1; int amdgpu_vcnfw_log; int amdgpu_sg_display = -1; /* auto */ +uint amdgpu_user_partt_mode; static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work); @@ -950,6 +951,18 @@ MODULE_PARM_DESC(smu_pptable_id, "specify pptable id to be used (-1 = auto(default) value, 0 = use pptable from vbios, > 0 = soft pptable id)"); module_param_named(smu_pptable_id, amdgpu_smu_pptable_id, int, 0444); +/** + * DOC: partition_mode (int) + * Used to override the default SPX mode. + */ +MODULE_PARM_DESC(user_partt_mode, + "specify partition mode to be used (0 = AMDGPU_SPX_PARTITION_MODE(default value), \ + 1 = AMDGPU_DPX_PARTITION_MODE, \ + 2 = AMDGPU_TPX_PARTITION_MODE, \ + 3 = AMDGPU_QPX_PARTITION_MODE, \ + 4 = AMDGPU_CPX_PARTITION_MODE)"); +module_param_named(user_partt_mode, amdgpu_user_partt_mode, uint, 0444); + /* These devices are not supported by amdgpu. * They are supported by the mach64, r128, radeon drivers */ 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 1d15db9423c9..2676a185c232 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c @@ -2162,8 +2162,29 @@ static int gfx_v9_4_3_early_init(void *handle) /* hardcode in emulation phase */ adev->gfx.num_xcd = 1; - adev->gfx.num_xcc_per_xcp = 1; - adev->gfx.partition_mode = AMDGPU_SPX_PARTITION_MODE; + + adev->gfx.partition_mode = amdgpu_user_partt_mode; + /* calculate the num_xcc_in_xcp for the partition mode*/ + switch (amdgpu_user_partt_mode) { + case AMDGPU_SPX_PARTITION_MODE: + adev->gfx.num_xcc_per_xcp = adev->gfx.num_xcd; + break; + case AMDGPU_DPX_PARTITION_MODE: + adev->gfx.num_xcc_per_xcp = adev->gfx.num_xcd / 2; + break; + case AMDGPU_TPX_PARTITION_MODE: + adev->gfx.num_xcc_per_xcp = adev->gfx.num_xcd / 3; + break; + case AMDGPU_QPX_PARTITION_MODE: + adev->gfx.num_xcc_per_xcp = adev->gfx.num_xcd / 4; + break; + case AMDGPU_CPX_PARTITION_MODE: + adev->gfx.num_xcc_per_xcp = 1; + break; + default: + adev->gfx.num_xcc_per_xcp = adev->gfx.num_xcd; + break; + } adev->gfx.num_compute_rings = min(amdgpu_gfx_get_num_kcq(adev), AMDGPU_MAX_COMPUTE_RINGS); |