From: Alex Deucher Date: Wed, 3 Jul 2013 19:07:28 +0000 (-0400) Subject: drm/radeon/sumo: disable PG when changing UVD clocks X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2b90eddcd7091dd631ead1d79e28e79ad589bb8d;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/radeon/sumo: disable PG when changing UVD clocks Causes hangs for some people. Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c index bf187a5b3d58..b13448f13ee8 100644 --- a/drivers/gpu/drm/radeon/sumo_dpm.c +++ b/drivers/gpu/drm/radeon/sumo_dpm.c @@ -811,6 +811,23 @@ static void sumo_program_bootup_state(struct radeon_device *rdev) sumo_power_level_enable(rdev, i, false); } +static void sumo_setup_uvd_clocks(struct radeon_device *rdev, + struct radeon_ps *new_rps, + struct radeon_ps *old_rps) +{ + struct sumo_power_info *pi = sumo_get_pi(rdev); + + if (pi->enable_gfx_power_gating) { + sumo_gfx_powergating_enable(rdev, false); + } + + radeon_set_uvd_clocks(rdev, new_rps->vclk, new_rps->dclk); + + if (pi->enable_gfx_power_gating) { + sumo_gfx_powergating_enable(rdev, true); + } +} + static void sumo_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev, struct radeon_ps *new_rps, struct radeon_ps *old_rps) @@ -826,7 +843,7 @@ static void sumo_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev, current_ps->levels[current_ps->num_levels - 1].sclk) return; - radeon_set_uvd_clocks(rdev, new_rps->vclk, new_rps->dclk); + sumo_setup_uvd_clocks(rdev, new_rps, old_rps); } static void sumo_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev, @@ -844,7 +861,7 @@ static void sumo_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev, current_ps->levels[current_ps->num_levels - 1].sclk) return; - radeon_set_uvd_clocks(rdev, new_rps->vclk, new_rps->dclk); + sumo_setup_uvd_clocks(rdev, new_rps, old_rps); } void sumo_take_smu_control(struct radeon_device *rdev, bool enable)