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authorAlex Deucher <alexander.deucher@amd.com>2014-09-15 10:15:04 +0400
committerAlex Deucher <alexander.deucher@amd.com>2014-11-20 21:00:10 +0300
commit0e4ed1c1908e48ee66d9e955ce824bc1f34d103e (patch)
tree4f51335567b77e2af114c6e48d06b64c04cbb31c /drivers
parente03cea367f992e683435c41344197cd7b223b62c (diff)
downloadlinux-0e4ed1c1908e48ee66d9e955ce824bc1f34d103e.tar.xz
drm/radeon/dpm: add thermal dpm support for CI
Not currently used. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/ci_dpm.c27
-rw-r--r--drivers/gpu/drm/radeon/ci_dpm.h1
-rw-r--r--drivers/gpu/drm/radeon/ppsmc.h3
3 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index 4581d6cf90e8..83121403ce3b 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -714,6 +714,25 @@ static int ci_enable_smc_cac(struct radeon_device *rdev, bool enable)
return ret;
}
+static int ci_enable_thermal_based_sclk_dpm(struct radeon_device *rdev,
+ bool enable)
+{
+ struct ci_power_info *pi = ci_get_pi(rdev);
+ PPSMC_Result smc_result = PPSMC_Result_OK;
+
+ if (pi->thermal_sclk_dpm_enabled) {
+ if (enable)
+ smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_ENABLE_THERMAL_DPM);
+ else
+ smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_DISABLE_THERMAL_DPM);
+ }
+
+ if (smc_result == PPSMC_Result_OK)
+ return 0;
+ else
+ return -EINVAL;
+}
+
static int ci_power_control_set_level(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
@@ -5177,6 +5196,12 @@ int ci_dpm_enable(struct radeon_device *rdev)
ci_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
+ ret = ci_enable_thermal_based_sclk_dpm(rdev, true);
+ if (ret) {
+ DRM_ERROR("ci_enable_thermal_based_sclk_dpm failed\n");
+ return ret;
+ }
+
ci_thermal_start_thermal_controller(rdev);
ci_update_current_ps(rdev, boot_ps);
@@ -5240,6 +5265,7 @@ void ci_dpm_disable(struct radeon_device *rdev)
ci_reset_to_default(rdev);
ci_dpm_stop_smc(rdev);
ci_force_switch_to_arb_f0(rdev);
+ ci_enable_thermal_based_sclk_dpm(rdev, false);
ci_update_current_ps(rdev, boot_ps);
}
@@ -5639,6 +5665,7 @@ int ci_dpm_init(struct radeon_device *rdev)
pi->sclk_dpm_key_disabled = 0;
pi->mclk_dpm_key_disabled = 0;
pi->pcie_dpm_key_disabled = 0;
+ pi->thermal_sclk_dpm_enabled = 0;
/* mclk dpm is unstable on some R7 260X cards with the old mc ucode */
if ((rdev->pdev->device == 0x6658) &&
diff --git a/drivers/gpu/drm/radeon/ci_dpm.h b/drivers/gpu/drm/radeon/ci_dpm.h
index bb19fbf3ab8a..84e3d3bcf9f3 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.h
+++ b/drivers/gpu/drm/radeon/ci_dpm.h
@@ -239,6 +239,7 @@ struct ci_power_info {
u32 sclk_dpm_key_disabled;
u32 mclk_dpm_key_disabled;
u32 pcie_dpm_key_disabled;
+ u32 thermal_sclk_dpm_enabled;
struct ci_pcie_perf_range pcie_gen_performance;
struct ci_pcie_perf_range pcie_lane_performance;
struct ci_pcie_perf_range pcie_gen_powersaving;
diff --git a/drivers/gpu/drm/radeon/ppsmc.h b/drivers/gpu/drm/radeon/ppsmc.h
index ff698b05bdf5..7e5724a12f8b 100644
--- a/drivers/gpu/drm/radeon/ppsmc.h
+++ b/drivers/gpu/drm/radeon/ppsmc.h
@@ -162,6 +162,9 @@ typedef uint8_t PPSMC_Result;
#define PPSMC_MSG_Remove_DC_Clamp ((uint16_t) 0x191)
#define PPSMC_MSG_SetFanPwmMax ((uint16_t) 0x19A)
+#define PPSMC_MSG_ENABLE_THERMAL_DPM ((uint16_t) 0x19C)
+#define PPSMC_MSG_DISABLE_THERMAL_DPM ((uint16_t) 0x19D)
+
#define PPSMC_MSG_API_GetSclkFrequency ((uint16_t) 0x200)
#define PPSMC_MSG_API_GetMclkFrequency ((uint16_t) 0x201)