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drm/amd/powerplay: revise reading/writing pptable on Polaris10

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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>
This commit is contained in:
Eric Huang 2016-04-15 17:23:14 -04:00 committed by Alex Deucher
parent 92dea67dd6
commit a72d5604ea
2 changed files with 30 additions and 4 deletions
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31
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
View file

@ -2560,6 +2560,13 @@ int polaris10_reset_asic_tasks(struct pp_hwmgr *hwmgr)
int polaris10_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
{
struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
if (data->soft_pp_table) {
kfree(data->soft_pp_table);
data->soft_pp_table = NULL;
}
return phm_hwmgr_backend_fini(hwmgr);
}
@ -4750,18 +4757,34 @@ static int polaris10_get_pp_table(struct pp_hwmgr *hwmgr, char **table)
{
struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
*table = (char *)&data->smc_state_table;
if (!data->soft_pp_table) {
data->soft_pp_table = kzalloc(hwmgr->soft_pp_table_size, GFP_KERNEL);
if (!data->soft_pp_table)
return -ENOMEM;
memcpy(data->soft_pp_table, hwmgr->soft_pp_table,
hwmgr->soft_pp_table_size);
}
return sizeof(struct SMU74_Discrete_DpmTable);
*table = (char *)&data->soft_pp_table;
return hwmgr->soft_pp_table_size;
}
static int polaris10_set_pp_table(struct pp_hwmgr *hwmgr, const char *buf, size_t size)
{
struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
void *table = (void *)&data->smc_state_table;
if (!data->soft_pp_table) {
data->soft_pp_table = kzalloc(hwmgr->soft_pp_table_size, GFP_KERNEL);
if (!data->soft_pp_table)
return -ENOMEM;
}
memcpy(table, buf, size);
memcpy(data->soft_pp_table, buf, size);
hwmgr->soft_pp_table = data->soft_pp_table;
/* TODO: re-init powerplay to implement modified pptable */
return 0;
}

3
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.h
View file

@ -309,6 +309,9 @@ struct polaris10_hwmgr {
uint32_t up_hyst;
uint32_t disable_dpm_mask;
bool apply_optimized_settings;
/* soft pptable for re-uploading into smu */
void *soft_pp_table;
};
/* To convert to Q8.8 format for firmware */