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drm/radeon/sumo: implement get_current_sclk/mclk

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Will be used for exposing current clocks via INFO ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2014-09-30 10:58:22 -04:00
parent dbbd3c81b0
commit 2f8e1eb7d6
3 changed files with 32 additions and 0 deletions
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28
drivers/gpu/drm/radeon/sumo_dpm.c
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@@ -1837,6 +1837,34 @@ void sumo_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev
}
}
u32 sumo_dpm_get_current_sclk(struct radeon_device *rdev)
{
struct sumo_power_info *pi = sumo_get_pi(rdev);
struct radeon_ps *rps = &pi->current_rps;
struct sumo_ps *ps = sumo_get_ps(rps);
struct sumo_pl *pl;
u32 current_index =
(RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_INDEX_MASK) >>
CURR_INDEX_SHIFT;
if (current_index == BOOST_DPM_LEVEL) {
pl = &pi->boost_pl;
return pl->sclk;
} else if (current_index >= ps->num_levels) {
return 0;
} else {
pl = &ps->levels[current_index];
return pl->sclk;
}
}
u32 sumo_dpm_get_current_mclk(struct radeon_device *rdev)
{
struct sumo_power_info *pi = sumo_get_pi(rdev);
return pi->sys_info.bootup_uma_clk;
}
void sumo_dpm_fini(struct radeon_device *rdev)
{
int i;