drm/radeon/kms/pm: rework power management

- Separate dynpm and profile based power management methods.  You can select the pm method
  by echoing the selected method ("dynpm" or "profile") to power_method in sysfs.
- Expose basic 4 profile in profile method
  "default" - default clocks
  "auto" - select between low and high based on ac/dc state
  "low" - DC, low power mode
  "high" - AC, performance mode
  The current base profile is "default", but it should switched to "auto" once we've tested
  on more systems.  Switching the state is a matter of echoing the requested profile to
  power_profile in sysfs.  The lowest power states are selected automatically when dpms turns
  the monitors off in all states but default.
- Remove dynamic fence-based reclocking for the moment.  We can revisit this later once we
  have basic pm in.
- Move pm init/fini to modesetting path.  pm is tightly coupled with display state.  Make sure
  display side is initialized before pm.
- Add pm suspend/resume functions to make sure pm state is properly reinitialized on resume.
- Remove dynpm module option.  It's now selectable via sysfs.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 28 insertions, 28 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 1e6f17b..e57df08 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -166,11 +166,11 @@ static struct radeon_asic r100_asic = {
 	.hpd_set_polarity = &r100_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &r100_pm_misc,
 	.pm_prepare = &r100_pm_prepare,
 	.pm_finish = &r100_pm_finish,
+	.pm_init_profile = &r100_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic r200_asic = {
@@ -210,11 +210,11 @@ static struct radeon_asic r200_asic = {
 	.hpd_set_polarity = &r100_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &r100_pm_misc,
 	.pm_prepare = &r100_pm_prepare,
 	.pm_finish = &r100_pm_finish,
+	.pm_init_profile = &r100_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic r300_asic = {
@@ -255,11 +255,11 @@ static struct radeon_asic r300_asic = {
 	.hpd_set_polarity = &r100_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &r100_pm_misc,
 	.pm_prepare = &r100_pm_prepare,
 	.pm_finish = &r100_pm_finish,
+	.pm_init_profile = &r100_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic r300_asic_pcie = {
@@ -299,11 +299,11 @@ static struct radeon_asic r300_asic_pcie = {
 	.hpd_set_polarity = &r100_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &r100_pm_misc,
 	.pm_prepare = &r100_pm_prepare,
 	.pm_finish = &r100_pm_finish,
+	.pm_init_profile = &r100_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic r420_asic = {
@@ -344,11 +344,11 @@ static struct radeon_asic r420_asic = {
 	.hpd_set_polarity = &r100_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &r100_pm_misc,
 	.pm_prepare = &r100_pm_prepare,
 	.pm_finish = &r100_pm_finish,
+	.pm_init_profile = &r420_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic rs400_asic = {
@@ -389,11 +389,11 @@ static struct radeon_asic rs400_asic = {
 	.hpd_set_polarity = &r100_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &r100_pm_misc,
 	.pm_prepare = &r100_pm_prepare,
 	.pm_finish = &r100_pm_finish,
+	.pm_init_profile = &r100_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic rs600_asic = {
@@ -434,11 +434,11 @@ static struct radeon_asic rs600_asic = {
 	.hpd_set_polarity = &rs600_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &rs600_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &r420_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic rs690_asic = {
@@ -479,11 +479,11 @@ static struct radeon_asic rs690_asic = {
 	.hpd_set_polarity = &rs600_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &rs600_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &r420_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic rv515_asic = {
@@ -524,11 +524,11 @@ static struct radeon_asic rv515_asic = {
 	.hpd_set_polarity = &rs600_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &rs600_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &r420_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic r520_asic = {
@@ -569,11 +569,11 @@ static struct radeon_asic r520_asic = {
 	.hpd_set_polarity = &rs600_hpd_set_polarity,
 	.ioctl_wait_idle = NULL,
 	.gui_idle = &r100_gui_idle,
-	.get_power_state = &r100_get_power_state,
-	.set_power_state = &r100_set_power_state,
 	.pm_misc = &rs600_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &r420_pm_init_profile,
+	.pm_get_dynpm_state = &r100_pm_get_dynpm_state,
 };
 
 static struct radeon_asic r600_asic = {
@@ -613,11 +613,11 @@ static struct radeon_asic r600_asic = {
 	.hpd_set_polarity = &r600_hpd_set_polarity,
 	.ioctl_wait_idle = r600_ioctl_wait_idle,
 	.gui_idle = &r600_gui_idle,
-	.get_power_state = &r600_get_power_state,
-	.set_power_state = &r600_set_power_state,
 	.pm_misc = &r600_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &r600_pm_init_profile,
+	.pm_get_dynpm_state = &r600_pm_get_dynpm_state,
 };
 
 static struct radeon_asic rs780_asic = {
@@ -657,11 +657,11 @@ static struct radeon_asic rs780_asic = {
 	.hpd_set_polarity = &r600_hpd_set_polarity,
 	.ioctl_wait_idle = r600_ioctl_wait_idle,
 	.gui_idle = &r600_gui_idle,
-	.get_power_state = &r600_get_power_state,
-	.set_power_state = &r600_set_power_state,
 	.pm_misc = &r600_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &rs780_pm_init_profile,
+	.pm_get_dynpm_state = &r600_pm_get_dynpm_state,
 };
 
 static struct radeon_asic rv770_asic = {
@@ -701,11 +701,11 @@ static struct radeon_asic rv770_asic = {
 	.hpd_set_polarity = &r600_hpd_set_polarity,
 	.ioctl_wait_idle = r600_ioctl_wait_idle,
 	.gui_idle = &r600_gui_idle,
-	.get_power_state = &r600_get_power_state,
-	.set_power_state = &r600_set_power_state,
 	.pm_misc = &rv770_pm_misc,
 	.pm_prepare = &rs600_pm_prepare,
 	.pm_finish = &rs600_pm_finish,
+	.pm_init_profile = &r600_pm_init_profile,
+	.pm_get_dynpm_state = &r600_pm_get_dynpm_state,
 };
 
 static struct radeon_asic evergreen_asic = {
@@ -743,11 +743,11 @@ static struct radeon_asic evergreen_asic = {
 	.hpd_sense = &evergreen_hpd_sense,
 	.hpd_set_polarity = &evergreen_hpd_set_polarity,
 	.gui_idle = &r600_gui_idle,
-	.get_power_state = &r600_get_power_state,
-	.set_power_state = &r600_set_power_state,
 	.pm_misc = &evergreen_pm_misc,
 	.pm_prepare = &evergreen_pm_prepare,
 	.pm_finish = &evergreen_pm_finish,
+	.pm_init_profile = &r600_pm_init_profile,
+	.pm_get_dynpm_state = &r600_pm_get_dynpm_state,
 };
 
 int radeon_asic_init(struct radeon_device *rdev)