diff options
author | Lijo Lazar <lijo.lazar@amd.com> | 2021-04-15 10:22:28 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2021-05-11 01:06:45 +0300 |
commit | b8c78bdb0bc68eb5e681e60b0aa54dd23c5d7d01 (patch) | |
tree | a64381f0b3eb7b859ffc1bd51cd6082c4b9e1193 /drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c | |
parent | bdd2465730a3ad62aec8ad47a59a9d36ffdebf37 (diff) | |
download | linux-b8c78bdb0bc68eb5e681e60b0aa54dd23c5d7d01.tar.xz |
drm/amd/pm: Add interface to get FW private buffer
v1: Add new interface to get FW private buffer details
v2: Drop domain check
v3: Use amdgpu_bo_kmap to get cpu address
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c')
-rw-r--r-- | drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c index ee6340c6f921..c73504e998e5 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c @@ -1651,6 +1651,26 @@ static int pp_gfx_state_change_set(void *handle, uint32_t state) return 0; } +static int pp_get_prv_buffer_details(void *handle, void **addr, size_t *size) +{ + struct pp_hwmgr *hwmgr = handle; + struct amdgpu_device *adev = hwmgr->adev; + + if (!addr || !size) + return -EINVAL; + + *addr = NULL; + *size = 0; + mutex_lock(&hwmgr->smu_lock); + if (adev->pm.smu_prv_buffer) { + amdgpu_bo_kmap(adev->pm.smu_prv_buffer, addr); + *size = adev->pm.smu_prv_buffer_size; + } + mutex_unlock(&hwmgr->smu_lock); + + return 0; +} + static const struct amd_pm_funcs pp_dpm_funcs = { .load_firmware = pp_dpm_load_fw, .wait_for_fw_loading_complete = pp_dpm_fw_loading_complete, @@ -1714,4 +1734,5 @@ static const struct amd_pm_funcs pp_dpm_funcs = { .set_xgmi_pstate = pp_set_xgmi_pstate, .get_gpu_metrics = pp_get_gpu_metrics, .gfx_state_change_set = pp_gfx_state_change_set, + .get_smu_prv_buf_details = pp_get_prv_buffer_details, }; |