[PATCH 108/165] drm/radeon/dpm: add pre/post_set_power_state callback (cayman)
alexdeucher at gmail.com
alexdeucher at gmail.com
Wed Jun 26 06:23:08 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/ni_dpm.c | 65 ++++++++++++++++++++++++++++------
drivers/gpu/drm/radeon/ni_dpm.h | 3 +-
drivers/gpu/drm/radeon/radeon_asic.c | 2 +
drivers/gpu/drm/radeon/radeon_asic.h | 2 +
4 files changed, 60 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index ebc9837..01ecb80 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -791,7 +791,6 @@ static void ni_calculate_leakage_for_v_and_t(struct radeon_device *rdev,
static void ni_apply_state_adjust_rules(struct radeon_device *rdev,
struct radeon_ps *rps)
{
- struct ni_power_info *ni_pi = ni_get_pi(rdev);
struct ni_ps *ps = ni_get_ps(rps);
struct radeon_clock_and_voltage_limits *max_limits;
bool disable_mclk_switching;
@@ -799,11 +798,6 @@ static void ni_apply_state_adjust_rules(struct radeon_device *rdev,
u16 vddc, vddci;
int i;
- /* point to the hw copy since this function will modify the ps */
- ni_pi->hw_ps = *ps;
- rdev->pm.dpm.hw_ps.ps_priv = &ni_pi->hw_ps;
- ps = &ni_pi->hw_ps;
-
if (rdev->pm.dpm.new_active_crtc_count > 1)
disable_mclk_switching = true;
else
@@ -3502,6 +3496,30 @@ void ni_dpm_setup_asic(struct radeon_device *rdev)
rv770_enable_acpi_pm(rdev);
}
+static void ni_update_current_ps(struct radeon_device *rdev,
+ struct radeon_ps *rps)
+{
+ struct ni_ps *new_ps = ni_get_ps(rps);
+ struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+ struct ni_power_info *ni_pi = ni_get_pi(rdev);
+
+ eg_pi->current_rps = *rps;
+ ni_pi->current_ps = *new_ps;
+ eg_pi->current_rps.ps_priv = &ni_pi->current_ps;
+}
+
+static void ni_update_requested_ps(struct radeon_device *rdev,
+ struct radeon_ps *rps)
+{
+ struct ni_ps *new_ps = ni_get_ps(rps);
+ struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+ struct ni_power_info *ni_pi = ni_get_pi(rdev);
+
+ eg_pi->requested_rps = *rps;
+ ni_pi->requested_ps = *new_ps;
+ eg_pi->requested_rps.ps_priv = &ni_pi->requested_ps;
+}
+
int ni_dpm_enable(struct radeon_device *rdev)
{
struct rv7xx_power_info *pi = rv770_get_pi(rdev);
@@ -3576,6 +3594,8 @@ int ni_dpm_enable(struct radeon_device *rdev)
rv770_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
+ ni_update_current_ps(rdev, boot_ps);
+
return 0;
}
@@ -3613,6 +3633,8 @@ void ni_dpm_disable(struct radeon_device *rdev)
btc_reset_to_default(rdev);
ni_stop_smc(rdev);
ni_force_switch_to_arb_f0(rdev);
+
+ ni_update_current_ps(rdev, boot_ps);
}
int ni_power_control_set_level(struct radeon_device *rdev)
@@ -3628,14 +3650,25 @@ int ni_power_control_set_level(struct radeon_device *rdev)
return 0;
}
+int ni_dpm_pre_set_power_state(struct radeon_device *rdev)
+{
+ struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+ struct radeon_ps requested_ps = *rdev->pm.dpm.requested_ps;
+ struct radeon_ps *new_ps = &requested_ps;
+
+ ni_update_requested_ps(rdev, new_ps);
+
+ ni_apply_state_adjust_rules(rdev, &eg_pi->requested_rps);
+
+ return 0;
+}
+
int ni_dpm_set_power_state(struct radeon_device *rdev)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
- struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps;
+ struct radeon_ps *new_ps = &eg_pi->requested_rps;
int ret;
- ni_apply_state_adjust_rules(rdev, new_ps);
-
ni_restrict_performance_levels_before_switch(rdev);
ni_enable_power_containment(rdev, new_ps, false);
ni_enable_smc_cac(rdev, new_ps, false);
@@ -3657,6 +3690,14 @@ int ni_dpm_set_power_state(struct radeon_device *rdev)
return 0;
}
+void ni_dpm_post_set_power_state(struct radeon_device *rdev)
+{
+ struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+ struct radeon_ps *new_ps = &eg_pi->requested_rps;
+
+ ni_update_current_ps(rdev, new_ps);
+}
+
void ni_dpm_reset_asic(struct radeon_device *rdev)
{
ni_restrict_performance_levels_before_switch(rdev);
@@ -4078,7 +4119,8 @@ void ni_dpm_print_power_state(struct radeon_device *rdev,
u32 ni_dpm_get_sclk(struct radeon_device *rdev, bool low)
{
- struct ni_ps *requested_state = ni_get_ps(rdev->pm.dpm.requested_ps);
+ struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+ struct ni_ps *requested_state = ni_get_ps(&eg_pi->requested_rps);
if (low)
return requested_state->performance_levels[0].sclk;
@@ -4088,7 +4130,8 @@ u32 ni_dpm_get_sclk(struct radeon_device *rdev, bool low)
u32 ni_dpm_get_mclk(struct radeon_device *rdev, bool low)
{
- struct ni_ps *requested_state = ni_get_ps(rdev->pm.dpm.requested_ps);
+ struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+ struct ni_ps *requested_state = ni_get_ps(&eg_pi->requested_rps);
if (low)
return requested_state->performance_levels[0].mclk;
diff --git a/drivers/gpu/drm/radeon/ni_dpm.h b/drivers/gpu/drm/radeon/ni_dpm.h
index e10f747..59c1692 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.h
+++ b/drivers/gpu/drm/radeon/ni_dpm.h
@@ -202,7 +202,8 @@ struct ni_power_info {
const struct ni_cac_weights *cac_weights;
u8 lta_window_size;
u8 lts_truncate;
- struct ni_ps hw_ps;
+ struct ni_ps current_ps;
+ struct ni_ps requested_ps;
/* scratch structs */
SMC_NIslands_MCRegisters smc_mc_reg_table;
NISLANDS_SMC_STATETABLE smc_statetable;
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 25eeaa4..e7162b1 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1821,7 +1821,9 @@ static struct radeon_asic cayman_asic = {
.setup_asic = &ni_dpm_setup_asic,
.enable = &ni_dpm_enable,
.disable = &ni_dpm_disable,
+ .pre_set_power_state = &ni_dpm_pre_set_power_state,
.set_power_state = &ni_dpm_set_power_state,
+ .post_set_power_state = &ni_dpm_post_set_power_state,
.display_configuration_changed = &cypress_dpm_display_configuration_changed,
.fini = &ni_dpm_fini,
.get_sclk = &ni_dpm_get_sclk,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 696d6e9..7b898bc 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -593,7 +593,9 @@ int ni_dpm_init(struct radeon_device *rdev);
void ni_dpm_setup_asic(struct radeon_device *rdev);
int ni_dpm_enable(struct radeon_device *rdev);
void ni_dpm_disable(struct radeon_device *rdev);
+int ni_dpm_pre_set_power_state(struct radeon_device *rdev);
int ni_dpm_set_power_state(struct radeon_device *rdev);
+void ni_dpm_post_set_power_state(struct radeon_device *rdev);
void ni_dpm_fini(struct radeon_device *rdev);
u32 ni_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 ni_dpm_get_mclk(struct radeon_device *rdev, bool low);
--
1.7.7.5
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