This is a note to let you know that I've just added the patch titled
drm/radeon/dpm: fix 120hz handling harder
to the 3.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-dpm-fix-120hz-handling-harder.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3899ca844b82fb201fb764f56eec483acb59a29c Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Wed, 18 Mar 2015 17:05:10 -0400
Subject: drm/radeon/dpm: fix 120hz handling harder
From: Alex Deucher <[email protected]>
commit 3899ca844b82fb201fb764f56eec483acb59a29c upstream.
Need to expand the check to handle short circuiting
if the selected state is the same as current state.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=87796
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/radeon.h | 1 +
drivers/gpu/drm/radeon/radeon_pm.c | 22 +++++++++++++++++-----
2 files changed, 18 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1565,6 +1565,7 @@ struct radeon_dpm {
int new_active_crtc_count;
u32 current_active_crtcs;
int current_active_crtc_count;
+ bool single_display;
struct radeon_dpm_dynamic_state dyn_state;
struct radeon_dpm_fan fan;
u32 tdp_limit;
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -704,12 +704,8 @@ static void radeon_dpm_thermal_work_hand
radeon_pm_compute_clocks(rdev);
}
-static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device
*rdev,
- enum radeon_pm_state_type
dpm_state)
+static bool radeon_dpm_single_display(struct radeon_device *rdev)
{
- int i;
- struct radeon_ps *ps;
- u32 ui_class;
bool single_display = (rdev->pm.dpm.new_active_crtc_count < 2) ?
true : false;
@@ -719,6 +715,17 @@ static struct radeon_ps *radeon_dpm_pick
single_display = false;
}
+ return single_display;
+}
+
+static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device
*rdev,
+ enum radeon_pm_state_type
dpm_state)
+{
+ int i;
+ struct radeon_ps *ps;
+ u32 ui_class;
+ bool single_display = radeon_dpm_single_display(rdev);
+
/* certain older asics have a separare 3D performance state,
* so try that first if the user selected performance
*/
@@ -844,6 +851,7 @@ static void radeon_dpm_change_power_stat
struct radeon_ps *ps;
enum radeon_pm_state_type dpm_state;
int ret;
+ bool single_display = radeon_dpm_single_display(rdev);
/* if dpm init failed */
if (!rdev->pm.dpm_enabled)
@@ -868,6 +876,9 @@ static void radeon_dpm_change_power_stat
/* vce just modifies an existing state so force a change */
if (ps->vce_active != rdev->pm.dpm.vce_active)
goto force;
+ /* user has made a display change (such as timing) */
+ if (rdev->pm.dpm.single_display != single_display)
+ goto force;
if ((rdev->family < CHIP_BARTS) || (rdev->flags &
RADEON_IS_IGP)) {
/* for pre-BTC and APUs if the num crtcs changed but
state is the same,
* all we need to do is update the display
configuration.
@@ -930,6 +941,7 @@ force:
rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
rdev->pm.dpm.current_active_crtc_count =
rdev->pm.dpm.new_active_crtc_count;
+ rdev->pm.dpm.single_display = single_display;
/* wait for the rings to drain */
for (i = 0; i < RADEON_NUM_RINGS; i++) {
Patches currently in stable-queue which might be from [email protected]
are
queue-3.19/drm-radeon-dpm-fix-120hz-handling-harder.patch
queue-3.19/drm-radeon-fix-wait-in-radeon_mn_invalidate_range_start.patch
queue-3.19/drm-radeon-add-extra-check-in-radeon_ttm_tt_unpin_userptr.patch
--
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