From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130518021700.265508105@goodmis.org> Date: Fri, 17 May 2013 22:17:53 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Alex Deucher Subject: [ 116/136 ] drm/radeon: dont use get_engine_clock() on APUs References: <20130518021557.139113314@goodmis.org> Content-Disposition: inline; filename=0116-drm-radeon-don-t-use-get_engine_clock-on-APUs.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.4 stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher [ Upstream commit bf05d9985111f85ed6922c134567b96eb789283b ] 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 Cc: stable@vger.kernel.org Signed-off-by: Steven Rostedt --- drivers/gpu/drm/radeon/radeon_pm.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 395d7e0..8c89481 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -856,7 +856,11 @@ 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)); -- 1.7.10.4