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drm/amd/powerplay: revise reading/writing pptable on Polaris10
Change the way we store pptables in the driver to better facilitate eventual runtime updates for debugging. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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92dea67dd6
commit
a72d5604ea
2 changed files with 30 additions and 4 deletions
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@ -2560,6 +2560,13 @@ int polaris10_reset_asic_tasks(struct pp_hwmgr *hwmgr)
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int polaris10_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
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{
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struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
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if (data->soft_pp_table) {
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kfree(data->soft_pp_table);
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data->soft_pp_table = NULL;
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}
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return phm_hwmgr_backend_fini(hwmgr);
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}
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@ -4750,18 +4757,34 @@ static int polaris10_get_pp_table(struct pp_hwmgr *hwmgr, char **table)
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{
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struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
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*table = (char *)&data->smc_state_table;
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if (!data->soft_pp_table) {
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data->soft_pp_table = kzalloc(hwmgr->soft_pp_table_size, GFP_KERNEL);
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if (!data->soft_pp_table)
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return -ENOMEM;
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memcpy(data->soft_pp_table, hwmgr->soft_pp_table,
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hwmgr->soft_pp_table_size);
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}
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return sizeof(struct SMU74_Discrete_DpmTable);
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*table = (char *)&data->soft_pp_table;
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return hwmgr->soft_pp_table_size;
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}
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static int polaris10_set_pp_table(struct pp_hwmgr *hwmgr, const char *buf, size_t size)
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{
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struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
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void *table = (void *)&data->smc_state_table;
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if (!data->soft_pp_table) {
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data->soft_pp_table = kzalloc(hwmgr->soft_pp_table_size, GFP_KERNEL);
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if (!data->soft_pp_table)
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return -ENOMEM;
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}
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memcpy(table, buf, size);
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memcpy(data->soft_pp_table, buf, size);
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hwmgr->soft_pp_table = data->soft_pp_table;
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/* TODO: re-init powerplay to implement modified pptable */
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return 0;
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}
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@ -309,6 +309,9 @@ struct polaris10_hwmgr {
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uint32_t up_hyst;
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uint32_t disable_dpm_mask;
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bool apply_optimized_settings;
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/* soft pptable for re-uploading into smu */
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void *soft_pp_table;
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};
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/* To convert to Q8.8 format for firmware */
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