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drm/amd/pm: Add interface to get FW private buffer

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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>
This commit is contained in:
Lijo Lazar 2021-04-15 15:22:28 +08:00 committed by Alex Deucher
parent bdd2465730
commit b8c78bdb0b
3 changed files with 43 additions and 0 deletions
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1
drivers/gpu/drm/amd/include/kgd_pp_interface.h
View File

@ -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 {

21
drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
View File

@ -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,
};

21
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@ -2933,6 +2933,26 @@ 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 */
@ -2984,6 +3004,7 @@ 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,