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authorAlex Deucher <alexander.deucher@amd.com>2013-03-18 17:12:50 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-11 13:48:11 -0700
commitff52cbbb96647ae7f0d94f061698303d1b43f1fb (patch)
tree2f62cf85d8e567873020740eced9875406d31dee /drivers/gpu/drm
parent32b9dc07fb1684d49e851921354010f995a08023 (diff)
drm/radeon: don't use get_engine_clock() on APUs
commit bf05d9985111f85ed6922c134567b96eb789283b upstream. It doesn't work reliably. Just report back the currently selected engine clock. Partially fixes: https://bugs.freedesktop.org/show_bug.cgi?id=62493 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index b8459bdce42..bf6ca2d8a28 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -872,7 +872,11 @@ static int radeon_debugfs_pm_info(struct seq_file *m, void *data)
struct radeon_device *rdev = dev->dev_private;
seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk);
- seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev));
+ /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */
+ if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP))
+ seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk);
+ else
+ seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev));
seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk);
if (rdev->asic->pm.get_memory_clock)
seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev));