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

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 17:14:53 -04:00 committed by Alex Deucher
parent 65ba4f227c
commit 92dea67dd6
2 changed files with 28 additions and 13 deletions
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39
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
View File

@ -4443,17 +4443,14 @@ int tonga_reset_asic_tasks(struct pp_hwmgr *hwmgr)
int tonga_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
{
if (NULL != hwmgr->dyn_state.vddc_dep_on_dal_pwrl) {
kfree(hwmgr->dyn_state.vddc_dep_on_dal_pwrl);
hwmgr->dyn_state.vddc_dep_on_dal_pwrl = NULL;
struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
if (data->soft_pp_table) {
kfree(data->soft_pp_table);
data->soft_pp_table = NULL;
}
if (NULL != hwmgr->backend) {
kfree(hwmgr->backend);
hwmgr->backend = NULL;
}
return 0;
return phm_hwmgr_backend_fini(hwmgr);
}
/**
@ -6058,18 +6055,34 @@ static int tonga_get_pp_table(struct pp_hwmgr *hwmgr, char **table)
{
struct tonga_hwmgr *data = (struct tonga_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 SMU72_Discrete_DpmTable);
*table = (char *)&data->soft_pp_table;
return hwmgr->soft_pp_table_size;
}
static int tonga_set_pp_table(struct pp_hwmgr *hwmgr, const char *buf, size_t size)
{
struct tonga_hwmgr *data = (struct tonga_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;
}

2
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.h
View File

@ -353,6 +353,8 @@ struct tonga_hwmgr {
bool acp_power_gated; /* 1: gated, 0:not gated */
bool pg_acp_init;
/* soft pptable for re-uploading into smu */
void *soft_pp_table;
};
typedef struct tonga_hwmgr tonga_hwmgr;