[AMD Public Use] 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 <[email protected]> Suggested-by: Alex Deucher <[email protected]> Reviewed-by: Christian König <[email protected]> Reviewed-by: Kevin Wang <[email protected]> --- .../gpu/drm/amd/include/kgd_pp_interface.h | 1 + .../gpu/drm/amd/pm/powerplay/amd_powerplay.c | 21 +++++++++++++++++++ drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 21 +++++++++++++++++++ 3 files changed, 43 insertions(+) diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h index 353468667036..abd5a9d41d4c 100644 --- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h @@ -350,6 +350,7 @@ struct amd_pm_funcs { unsigned int *num_states); int (*get_dpm_clock_table)(void *handle, struct dpm_clocks *clock_table); + int (*get_smu_prv_buf_details)(void *handle, void **addr, size_t *size); }; struct metrics_table_header { 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, }; diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index e0eb7ca112e2..849a85ea84b9 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2932,6 +2932,26 @@ int smu_set_light_sbr(struct smu_context *smu, bool enable) return ret; } +static int smu_get_prv_buffer_details(void *handle, void **addr, size_t *size) +{ + struct smu_context *smu = handle; + struct smu_table_context *smu_table = &smu->smu_table; + struct smu_table *memory_pool = &smu_table->memory_pool; + + if (!addr || !size) + return -EINVAL; + + *addr = NULL; + *size = 0; + mutex_lock(&smu->mutex); + if (memory_pool->bo) { + *addr = memory_pool->cpu_addr; + *size = memory_pool->size; + } + mutex_unlock(&smu->mutex); + + return 0; +} static const struct amd_pm_funcs swsmu_pm_funcs = { /* export for sysfs */ @@ -2983,6 +3003,7 @@ static const struct amd_pm_funcs swsmu_pm_funcs = { .get_max_sustainable_clocks_by_dc = smu_get_max_sustainable_clocks_by_dc, .load_firmware = smu_load_microcode, .gfx_state_change_set = smu_gfx_state_change_set, + .get_smu_prv_buf_details = smu_get_prv_buffer_details, }; int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event, -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
