[PATCH 106/165] drm/radeon/dpm: add pre/post_set_power_state callback (TN)
alexdeucher at gmail.com
alexdeucher at gmail.com
Wed Jun 26 06:23:06 PDT 2013
From: Alex Deucher <alexander.deucher at amd.com>
This properly implemented dynamic state adjustment by
using a working copy of the requested and current
power states.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/radeon/radeon_asic.c | 2 +
drivers/gpu/drm/radeon/radeon_asic.h | 2 +
drivers/gpu/drm/radeon/trinity_dpm.c | 73 ++++++++++++++++++++++++---------
drivers/gpu/drm/radeon/trinity_dpm.h | 6 ++-
4 files changed, 61 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index c5d70da..c78519c 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1971,7 +1971,9 @@ static struct radeon_asic trinity_asic = {
.setup_asic = &trinity_dpm_setup_asic,
.enable = &trinity_dpm_enable,
.disable = &trinity_dpm_disable,
+ .pre_set_power_state = &trinity_dpm_pre_set_power_state,
.set_power_state = &trinity_dpm_set_power_state,
+ .post_set_power_state = &trinity_dpm_post_set_power_state,
.display_configuration_changed = &trinity_dpm_display_configuration_changed,
.fini = &trinity_dpm_fini,
.get_sclk = &trinity_dpm_get_sclk,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 817fc26..14d992d 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -598,7 +598,9 @@ void ni_dpm_print_power_state(struct radeon_device *rdev,
int trinity_dpm_init(struct radeon_device *rdev);
int trinity_dpm_enable(struct radeon_device *rdev);
void trinity_dpm_disable(struct radeon_device *rdev);
+int trinity_dpm_pre_set_power_state(struct radeon_device *rdev);
int trinity_dpm_set_power_state(struct radeon_device *rdev);
+void trinity_dpm_post_set_power_state(struct radeon_device *rdev);
void trinity_dpm_setup_asic(struct radeon_device *rdev);
void trinity_dpm_display_configuration_changed(struct radeon_device *rdev);
void trinity_dpm_fini(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c
index 103efbc..1699e93 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -832,15 +832,6 @@ static void trinity_unforce_levels(struct radeon_device *rdev)
trinity_dpm_no_forced_level(rdev);
}
-static void trinity_update_current_power_levels(struct radeon_device *rdev,
- struct radeon_ps *rps)
-{
- struct trinity_ps *new_ps = trinity_get_ps(rps);
- struct trinity_power_info *pi = trinity_get_pi(rdev);
-
- pi->current_ps = *new_ps;
-}
-
static void trinity_program_power_levels_0_to_n(struct radeon_device *rdev,
struct radeon_ps *new_rps,
struct radeon_ps *old_rps)
@@ -1046,6 +1037,28 @@ static int trinity_set_thermal_temperature_range(struct radeon_device *rdev,
return 0;
}
+static void trinity_update_current_ps(struct radeon_device *rdev,
+ struct radeon_ps *rps)
+{
+ struct trinity_ps *new_ps = trinity_get_ps(rps);
+ struct trinity_power_info *pi = trinity_get_pi(rdev);
+
+ pi->current_rps = *rps;
+ pi->current_ps = *new_ps;
+ pi->current_rps.ps_priv = &pi->current_ps;
+}
+
+static void trinity_update_requested_ps(struct radeon_device *rdev,
+ struct radeon_ps *rps)
+{
+ struct trinity_ps *new_ps = trinity_get_ps(rps);
+ struct trinity_power_info *pi = trinity_get_pi(rdev);
+
+ pi->requested_rps = *rps;
+ pi->requested_ps = *new_ps;
+ pi->requested_rps.ps_priv = &pi->requested_ps;
+}
+
int trinity_dpm_enable(struct radeon_device *rdev)
{
struct trinity_power_info *pi = trinity_get_pi(rdev);
@@ -1077,6 +1090,8 @@ int trinity_dpm_enable(struct radeon_device *rdev)
radeon_irq_set(rdev);
}
+ trinity_update_current_ps(rdev, rdev->pm.dpm.boot_ps);
+
return 0;
}
@@ -1099,6 +1114,8 @@ void trinity_dpm_disable(struct radeon_device *rdev)
rdev->irq.dpm_thermal = false;
radeon_irq_set(rdev);
}
+
+ trinity_update_current_ps(rdev, rdev->pm.dpm.boot_ps);
}
static void trinity_get_min_sclk_divider(struct radeon_device *rdev)
@@ -1127,14 +1144,26 @@ static void trinity_setup_nbp_sim(struct radeon_device *rdev,
}
}
-int trinity_dpm_set_power_state(struct radeon_device *rdev)
+int trinity_dpm_pre_set_power_state(struct radeon_device *rdev)
{
struct trinity_power_info *pi = trinity_get_pi(rdev);
- struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps;
- struct radeon_ps *old_ps = rdev->pm.dpm.current_ps;
+ struct radeon_ps requested_ps = *rdev->pm.dpm.requested_ps;
+ struct radeon_ps *new_ps = &requested_ps;
+
+ trinity_update_requested_ps(rdev, new_ps);
- trinity_apply_state_adjust_rules(rdev, new_ps, old_ps);
- trinity_update_current_power_levels(rdev, new_ps);
+ trinity_apply_state_adjust_rules(rdev,
+ &pi->requested_rps,
+ &pi->current_rps);
+
+ return 0;
+}
+
+int trinity_dpm_set_power_state(struct radeon_device *rdev)
+{
+ struct trinity_power_info *pi = trinity_get_pi(rdev);
+ struct radeon_ps *new_ps = &pi->requested_rps;
+ struct radeon_ps *old_ps = &pi->current_rps;
trinity_acquire_mutex(rdev);
if (pi->enable_dpm) {
@@ -1153,6 +1182,14 @@ int trinity_dpm_set_power_state(struct radeon_device *rdev)
return 0;
}
+void trinity_dpm_post_set_power_state(struct radeon_device *rdev)
+{
+ struct trinity_power_info *pi = trinity_get_pi(rdev);
+ struct radeon_ps *new_ps = &pi->requested_rps;
+
+ trinity_update_current_ps(rdev, new_ps);
+}
+
void trinity_dpm_setup_asic(struct radeon_device *rdev)
{
trinity_acquire_mutex(rdev);
@@ -1390,11 +1427,6 @@ static void trinity_apply_state_adjust_rules(struct radeon_device *rdev,
bool force_high;
u32 num_active_displays = rdev->pm.dpm.new_active_crtc_count;
- /* point to the hw copy since this function will modify the ps */
- pi->hw_ps = *ps;
- rdev->pm.dpm.hw_ps.ps_priv = &pi->hw_ps;
- ps = &pi->hw_ps;
-
if (new_rps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
return trinity_patch_thermal_state(rdev, ps, current_ps);
@@ -1833,7 +1865,8 @@ void trinity_dpm_fini(struct radeon_device *rdev)
u32 trinity_dpm_get_sclk(struct radeon_device *rdev, bool low)
{
- struct trinity_ps *requested_state = trinity_get_ps(rdev->pm.dpm.requested_ps);
+ struct trinity_power_info *pi = trinity_get_pi(rdev);
+ struct trinity_ps *requested_state = trinity_get_ps(&pi->requested_rps);
if (low)
return requested_state->levels[0].sclk;
diff --git a/drivers/gpu/drm/radeon/trinity_dpm.h b/drivers/gpu/drm/radeon/trinity_dpm.h
index c663aed..c621b84 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.h
+++ b/drivers/gpu/drm/radeon/trinity_dpm.h
@@ -97,7 +97,6 @@ struct trinity_power_info {
u32 thermal_auto_throttling;
struct trinity_sys_info sys_info;
struct trinity_pl boot_pl;
- struct trinity_ps current_ps;
u32 min_sclk_did;
bool enable_nbps_policy;
bool voltage_drop_in_dce;
@@ -110,7 +109,10 @@ struct trinity_power_info {
bool enable_dpm;
bool enable_sclk_ds;
bool uvd_dpm;
- struct trinity_ps hw_ps;
+ struct radeon_ps current_rps;
+ struct trinity_ps current_ps;
+ struct radeon_ps requested_rps;
+ struct trinity_ps requested_ps;
};
#define TRINITY_AT_DFLT 30
--
1.7.7.5
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