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drm/radeon/kms/pm: rework power management

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- 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>
This commit is contained in:
Alex Deucher
2010-05-07 15:10:16 -04:00
committed by Dave Airlie
parent d7311171c4
commit ce8f53709b
19 changed files with 787 additions and 516 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
drivers/gpu/drm/radeon/radeon.h
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@@ -89,7 +89,6 @@ extern int radeon_testing;
extern int radeon_connector_table;
extern int radeon_tv;
extern int radeon_new_pll;
extern int radeon_dynpm;
extern int radeon_audio;
extern int radeon_disp_priority;
extern int radeon_hw_i2c;
@@ -173,11 +172,10 @@ struct radeon_clock {
int radeon_pm_init(struct radeon_device *rdev);
void radeon_pm_fini(struct radeon_device *rdev);
void radeon_pm_compute_clocks(struct radeon_device *rdev);
void radeon_pm_suspend(struct radeon_device *rdev);
void radeon_pm_resume(struct radeon_device *rdev);
void radeon_combios_get_power_modes(struct radeon_device *rdev);
void radeon_atombios_get_power_modes(struct radeon_device *rdev);
bool radeon_pm_in_vbl(struct radeon_device *rdev);
bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish);
void radeon_sync_with_vblank(struct radeon_device *rdev);
/*
* Fences.
@@ -608,18 +606,24 @@ struct radeon_wb {
* Equation between gpu/memory clock and available bandwidth is hw dependent
* (type of memory, bus size, efficiency, ...)
*/
enum radeon_pm_state {
PM_STATE_DISABLED,
PM_STATE_MINIMUM,
PM_STATE_PAUSED,
PM_STATE_ACTIVE
enum radeon_pm_method {
PM_METHOD_PROFILE,
PM_METHOD_DYNPM,
};
enum radeon_pm_action {
PM_ACTION_NONE,
PM_ACTION_MINIMUM,
PM_ACTION_DOWNCLOCK,
PM_ACTION_UPCLOCK,
PM_ACTION_DEFAULT
enum radeon_dynpm_state {
DYNPM_STATE_DISABLED,
DYNPM_STATE_MINIMUM,
DYNPM_STATE_PAUSED,
DYNPM_STATE_ACTIVE
};
enum radeon_dynpm_action {
DYNPM_ACTION_NONE,
DYNPM_ACTION_MINIMUM,
DYNPM_ACTION_DOWNCLOCK,
DYNPM_ACTION_UPCLOCK,
DYNPM_ACTION_DEFAULT
};
enum radeon_voltage_type {
@@ -637,11 +641,25 @@ enum radeon_pm_state_type {
POWER_STATE_TYPE_PERFORMANCE,
};
enum radeon_pm_clock_mode_type {
POWER_MODE_TYPE_DEFAULT,
POWER_MODE_TYPE_LOW,
POWER_MODE_TYPE_MID,
POWER_MODE_TYPE_HIGH,
enum radeon_pm_profile_type {
PM_PROFILE_DEFAULT,
PM_PROFILE_AUTO,
PM_PROFILE_LOW,
PM_PROFILE_HIGH,
};
#define PM_PROFILE_DEFAULT_IDX 0
#define PM_PROFILE_LOW_SH_IDX 1
#define PM_PROFILE_HIGH_SH_IDX 2
#define PM_PROFILE_LOW_MH_IDX 3
#define PM_PROFILE_HIGH_MH_IDX 4
#define PM_PROFILE_MAX 5
struct radeon_pm_profile {
int dpms_off_ps_idx;
int dpms_on_ps_idx;
int dpms_off_cm_idx;
int dpms_on_cm_idx;
};
struct radeon_voltage {
@@ -696,12 +714,6 @@ struct radeon_power_state {
struct radeon_pm {
struct mutex mutex;
struct delayed_work idle_work;
enum radeon_pm_state state;
enum radeon_pm_action planned_action;
unsigned long action_timeout;
bool can_upclock;
bool can_downclock;
u32 active_crtcs;
int active_crtc_count;
int req_vblank;
@@ -731,6 +743,19 @@ struct radeon_pm {
u32 current_sclk;
u32 current_mclk;
struct radeon_i2c_chan *i2c_bus;
/* selected pm method */
enum radeon_pm_method pm_method;
/* dynpm power management */
struct delayed_work dynpm_idle_work;
enum radeon_dynpm_state dynpm_state;
enum radeon_dynpm_action dynpm_planned_action;
unsigned long dynpm_action_timeout;
bool dynpm_can_upclock;
bool dynpm_can_downclock;
/* profile-based power management */
enum radeon_pm_profile_type profile;
int profile_index;
struct radeon_pm_profile profiles[PM_PROFILE_MAX];
};
@@ -819,11 +844,12 @@ struct radeon_asic {
*/
void (*ioctl_wait_idle)(struct radeon_device *rdev, struct radeon_bo *bo);
bool (*gui_idle)(struct radeon_device *rdev);
void (*get_power_state)(struct radeon_device *rdev, enum radeon_pm_action action);
void (*set_power_state)(struct radeon_device *rdev, bool static_switch);
/* power management */
void (*pm_misc)(struct radeon_device *rdev);
void (*pm_prepare)(struct radeon_device *rdev);
void (*pm_finish)(struct radeon_device *rdev);
void (*pm_init_profile)(struct radeon_device *rdev);
void (*pm_get_dynpm_state)(struct radeon_device *rdev);
};
/*
@@ -1041,6 +1067,7 @@ struct radeon_device {
uint8_t audio_category_code;
bool powered_down;
struct notifier_block acpi_nb;
};
int radeon_device_init(struct radeon_device *rdev,
@@ -1232,11 +1259,11 @@ static inline void radeon_ring_write(struct radeon_device *rdev, uint32_t v)
#define radeon_hpd_sense(rdev, hpd) (rdev)->asic->hpd_sense((rdev), (hpd))
#define radeon_hpd_set_polarity(rdev, hpd) (rdev)->asic->hpd_set_polarity((rdev), (hpd))
#define radeon_gui_idle(rdev) (rdev)->asic->gui_idle((rdev))
#define radeon_get_power_state(rdev, a) (rdev)->asic->get_power_state((rdev), (a))
#define radeon_set_power_state(rdev, s) (rdev)->asic->set_power_state((rdev), (s))
#define radeon_pm_misc(rdev) (rdev)->asic->pm_misc((rdev))
#define radeon_pm_prepare(rdev) (rdev)->asic->pm_prepare((rdev))
#define radeon_pm_finish(rdev) (rdev)->asic->pm_finish((rdev))
#define radeon_pm_init_profile(rdev) (rdev)->asic->pm_init_profile((rdev))
#define radeon_pm_get_dynpm_state(rdev) (rdev)->asic->pm_get_dynpm_state((rdev))
/* Common functions */
/* AGP */