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drm/radeon/dpm: implement UVD powergating for KB/KV

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Powergate the UVD block when not in use to save power.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Esse commit está contido em:
Alex Deucher
2013-08-09 10:02:40 -04:00
pai 5e884f606c
commit 77df508a98
4 arquivos alterados com 19 adições e 9 exclusões
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22
drivers/gpu/drm/radeon/kv_dpm.c
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@@ -49,7 +49,7 @@ static int kv_set_thermal_temperature_range(struct radeon_device *rdev,
int min_temp, int max_temp);
static int kv_init_fps_limits(struct radeon_device *rdev);
static void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate);
void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate);
static void kv_dpm_powergate_vce(struct radeon_device *rdev, bool gate);
static void kv_dpm_powergate_samu(struct radeon_device *rdev, bool gate);
static void kv_dpm_powergate_acp(struct radeon_device *rdev, bool gate);
@@ -59,6 +59,10 @@ extern void cik_exit_rlc_safe_mode(struct radeon_device *rdev);
extern void cik_update_cg(struct radeon_device *rdev,
u32 block, bool enable);
extern void cik_uvd_resume(struct radeon_device *rdev);
extern int r600_uvd_init(struct radeon_device *rdev, bool ring_test);
extern void r600_do_uvd_stop(struct radeon_device *rdev);
static const struct kv_lcac_config_values sx_local_cac_cfg_kv[] =
{
{ 0, 4, 1 },
@@ -1201,6 +1205,7 @@ int kv_dpm_enable(struct radeon_device *rdev)
kv_dpm_powergate_acp(rdev, true);
kv_dpm_powergate_samu(rdev, true);
kv_dpm_powergate_vce(rdev, true);
kv_dpm_powergate_uvd(rdev, true);
kv_update_current_ps(rdev, rdev->pm.dpm.boot_ps);
@@ -1458,7 +1463,7 @@ static int kv_update_acp_dpm(struct radeon_device *rdev, bool gate)
return kv_enable_acp_dpm(rdev, !gate);
}
static void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate)
void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate)
{
struct kv_power_info *pi = kv_get_pi(rdev);
@@ -1468,13 +1473,18 @@ static void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate)
pi->uvd_power_gated = gate;
if (gate) {
kv_update_uvd_dpm(rdev, true);
r600_do_uvd_stop(rdev);
cik_update_cg(rdev, RADEON_CG_BLOCK_UVD, false);
kv_update_uvd_dpm(rdev, gate);
if (pi->caps_uvd_pg)
kv_notify_message_to_smu(rdev, PPSMC_MSG_UVDPowerOFF);
} else {
if (pi->caps_uvd_pg)
kv_notify_message_to_smu(rdev, PPSMC_MSG_UVDPowerON);
kv_update_uvd_dpm(rdev, false);
cik_uvd_resume(rdev);
r600_uvd_init(rdev, false);
cik_update_cg(rdev, RADEON_CG_BLOCK_UVD, true);
kv_update_uvd_dpm(rdev, gate);
}
}
@@ -1714,7 +1724,6 @@ int kv_dpm_set_power_state(struct radeon_device *rdev)
return ret;
}
#endif
kv_update_uvd_dpm(rdev, false);
kv_update_sclk_t(rdev);
}
} else {
@@ -1740,7 +1749,6 @@ int kv_dpm_set_power_state(struct radeon_device *rdev)
return ret;
}
#endif
kv_update_uvd_dpm(rdev, false);
kv_update_sclk_t(rdev);
kv_enable_nb_dpm(rdev);
}
@@ -2502,7 +2510,7 @@ int kv_dpm_init(struct radeon_device *rdev)
pi->voltage_drop_t = 0;
pi->caps_sclk_throttle_low_notification = false;
pi->caps_fps = false; /* true? */
pi->caps_uvd_pg = false; /* XXX */
pi->caps_uvd_pg = true;
pi->caps_uvd_dpm = true;
pi->caps_vce_pg = false;
pi->caps_samu_pg = false;