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Merge pull request #3307 from stefansaraev/uvd

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linux: revert "drm/radeon: use variable UVD clocks"
This commit is contained in:
Stefan Saraev 2014-06-07 15:39:35 +03:00
commit 59a8919892
1 changed files with 74 additions and 0 deletions
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packages/linux/patches/3.15-rc8/linux-999.05-revert-drm-radeon-use-variable-UVD-clocks.patch Normal file
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@ -0,0 +1,74 @@
From 51e32a86c64021b370d621a8bdf2369303af6e65 Mon Sep 17 00:00:00 2001
From: Stefan Saraev <stefan@saraev.ca>
Date: Sat, 7 Jun 2014 15:27:20 +0300
Subject: [PATCH] revert "drm/radeon: use variable UVD clocks"
this reverts upstream commit 14a9579, reported to cause
UVD performance regression.
original commit:
> From 14a9579ddbf15dd1992a9481a4ec80b0b91656d5 Mon Sep 17 00:00:00 2001
> From: Alex Deucher <alexdeucher@gmail.com>
> Date: Fri, 21 Feb 2014 11:34:35 -0500
> Subject: drm/radeon: use variable UVD clocks
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> Now that Christian fixed the performance problems with
> the feedback buffer in mesa, we can enable variable UVD
> clocks. There are multiple UVD power states associated
> with different types and numbers of streams. This uses
> the appropriate state based on that information rather
> than always using the fastest UVD clocks which saves some
> power. One possible downside is that this may adversely
> affect decode benchmarks since these power states target
> specific playback requirements rather than maximum
> performance. If that becomes an issue, we can add a
> sysfs attribute to force the max UVD state.
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> Reviewed-by: Christian K?nig <christian.koenig@amd.com>
---
drivers/gpu/drm/radeon/radeon_pm.c | 3 +++
drivers/gpu/drm/radeon/radeon_uvd.c | 3 ++-
2 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 53d6e1b..1d01a07 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -984,6 +984,8 @@ void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
if (enable) {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.uvd_active = true;
+ /* disable this for now */
+#if 0
if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD;
else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0))
@@ -993,6 +995,7 @@ void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2;
else
+#endif
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD;
rdev->pm.dpm.state = dpm_state;
mutex_unlock(&rdev->pm.mutex);
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 1b65ae2..a4ad270 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -812,7 +812,8 @@ void radeon_uvd_note_usage(struct radeon_device *rdev)
(rdev->pm.dpm.hd != hd)) {
rdev->pm.dpm.sd = sd;
rdev->pm.dpm.hd = hd;
- streams_changed = true;
+ /* disable this for now */
+ /*streams_changed = true;*/
}
}
--
1.7.2.5