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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-07-03 02:38:02 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-07-06 02:09:19 +0400 |
| commit | 70d01a5ee29fcb23a6b5948227b1aee212922ade (patch) | |
| tree | f2087b3fa9b4c6942686367c4390b4a04b6904c4 /drivers/gpu/drm/radeon/radeon.h | |
| parent | 67d5ced503db5b44cb82f378c9cb3f0e77a94e7f (diff) | |
| download | linux-70d01a5ee29fcb23a6b5948227b1aee212922ade.tar.xz | |
drm/radeon/dpm: add infrastructure to force performance levels
This allows you to force specific power levels within a power
state. Due to hardware restrictions between generations, the
interface is limited to the following 3 selections:
auto: all levels enabled
low: forced to the lowest power level
high: forced to the highest power level
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 08cececb376d..b4681313646c 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -1335,6 +1335,12 @@ enum radeon_pcie_gen { RADEON_PCIE_GEN_INVALID = 0xffff }; +enum radeon_dpm_forced_level { + RADEON_DPM_FORCED_LEVEL_AUTO = 0, + RADEON_DPM_FORCED_LEVEL_LOW = 1, + RADEON_DPM_FORCED_LEVEL_HIGH = 2, +}; + struct radeon_dpm { struct radeon_ps *ps; /* number of valid power states */ @@ -1374,6 +1380,8 @@ struct radeon_dpm { bool uvd_active; /* thermal handling */ struct radeon_dpm_thermal thermal; + /* forced levels */ + enum radeon_dpm_forced_level forced_level; }; void radeon_dpm_enable_power_state(struct radeon_device *rdev, @@ -1669,6 +1677,7 @@ struct radeon_asic { u32 (*get_mclk)(struct radeon_device *rdev, bool low); void (*print_power_state)(struct radeon_device *rdev, struct radeon_ps *ps); void (*debugfs_print_current_performance_level)(struct radeon_device *rdev, struct seq_file *m); + int (*force_performance_level)(struct radeon_device *rdev, enum radeon_dpm_forced_level level); } dpm; /* pageflipping */ struct { @@ -2436,6 +2445,7 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v); #define radeon_dpm_get_mclk(rdev, l) rdev->asic->dpm.get_mclk((rdev), (l)) #define radeon_dpm_print_power_state(rdev, ps) rdev->asic->dpm.print_power_state((rdev), (ps)) #define radeon_dpm_debugfs_print_current_performance_level(rdev, m) rdev->asic->dpm.debugfs_print_current_performance_level((rdev), (m)) +#define radeon_dpm_force_performance_level(rdev, l) rdev->asic->dpm.force_performance_level((rdev), (l)) /* Common functions */ /* AGP */ |