This is a note to let you know that I've just added the patch titled
drm/radeon: don't reset dma on r6xx-evergreen init
to the 3.14-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-don-t-reset-dma-on-r6xx-evergreen-init.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c1789a2e66a4209fe5035eca11fdd729b2ffdd82 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Thu, 18 Sep 2014 10:23:04 -0400
Subject: drm/radeon: don't reset dma on r6xx-evergreen init
MIME-Version: 1.0
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From: Alex Deucher <alexander.deucher@xxxxxxx>
commit c1789a2e66a4209fe5035eca11fdd729b2ffdd82 upstream.
Otherwise we may lose the DMA golden settings which can
lead to hangs, etc.
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/r600_dma.c | 9 ---------
1 file changed, 9 deletions(-)
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -124,15 +124,6 @@ int r600_dma_resume(struct radeon_device
u32 rb_bufsz;
int r;
- /* Reset dma */
- if (rdev->family >= CHIP_RV770)
- WREG32(SRBM_SOFT_RESET, RV770_SOFT_RESET_DMA);
- else
- WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA);
- RREG32(SRBM_SOFT_RESET);
- udelay(50);
- WREG32(SRBM_SOFT_RESET, 0);
-
WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL, 0);
WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL, 0);
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-3.14/drm-radeon-tweak-accel_working2-query-for-hawaii.patch
queue-3.14/drm-radeon-atom-add-new-voltage-fetch-function-for-hawaii.patch
queue-3.14/drm-radeon-don-t-reset-dma-on-ni-si-init.patch
queue-3.14/drm-radeon-don-t-reset-sdma-on-cik-init.patch
queue-3.14/drm-radeon-enable-bapm-by-default-on-desktop-tn-rl-boards.patch
queue-3.14/drm-radeon-fix-pm-handling-in-radeon_gpu_reset.patch
queue-3.14/drm-radeon-fix-semaphore-value-init.patch
queue-3.14/drm-radeon-add-missing-lines-to-ci_set_thermal_temperature_range.patch
queue-3.14/drm-radeon-dpm-handle-voltage-info-fetching-on-hawaii.patch
queue-3.14/drm-radeon-re-enable-dpm-by-default-on-btc.patch
queue-3.14/drm-radeon-tn-only-enable-bapm-on-msi-systems.patch
queue-3.14/drm-radeon-re-enable-dpm-by-default-on-cayman.patch
queue-3.14/drm-radeon-set-vm-base-addr-using-the-pfp-v2.patch
queue-3.14/drm-radeon-add-connector-quirk-for-fujitsu-board.patch
queue-3.14/drm-radeon-add-ability-to-get-and-change-dpm-state-when-radeon-px-card-is-turned-off.patch
queue-3.14/drm-radeon-cik-use-a-separate-counter-for-cp-init-timeout.patch
queue-3.14/drm-radeon-load-the-lm63-driver-for-an-lm64-thermal-chip.patch
queue-3.14/drm-radeon-dpm-set-the-thermal-type-properly-for-special-configs.patch
queue-3.14/drm-radeon-don-t-reset-dma-on-r6xx-evergreen-init.patch
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