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drm/radeon/dpm: add debugfs support for RS780/RS880 (v3)

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This allows you to look at the current DPM state via
debugfs.

Due to the way the hardware works on these asics, there's
no way to look up exactly what power state we are in, so
we make the best guess we can based on the current sclk.

v2: Anthoine's version
v3: fix ref div

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-07-02 13:05:23 -04:00
parent f90555cbe6
commit 444bddc4b9
4 changed files with 31 additions and 0 deletions
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2
drivers/gpu/drm/radeon/radeon_asic.h
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@@ -433,6 +433,8 @@ u32 rs780_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low);
void rs780_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
/* uvd */
int r600_uvd_init(struct radeon_device *rdev);