This is a note to let you know that I've just added the patch titled
drm/radeon: fix backend map setup on 1 RB sumo boards
to the 3.7-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-fix-backend-map-setup-on-1-rb-sumo-boards.patch
and it can be found in the queue-3.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From f7eb97300832f4fe5fe916c5d84cd2e25169330e Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Wed, 30 Jan 2013 13:57:40 -0500
Subject: drm/radeon: fix backend map setup on 1 RB sumo boards
From: Alex Deucher <[email protected]>
commit f7eb97300832f4fe5fe916c5d84cd2e25169330e upstream.
Need to adjust the backend map depending on which
RB is enabled.
Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=892233
Reported-by: Mikko Tiihonen <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/evergreen.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2045,9 +2045,20 @@ static void evergreen_gpu_init(struct ra
WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
WREG32(HDP_ADDR_CONFIG, gb_addr_config);
- tmp = gb_addr_config & NUM_PIPES_MASK;
- tmp = r6xx_remap_render_backend(rdev, tmp,
rdev->config.evergreen.max_backends,
- EVERGREEN_MAX_BACKENDS,
disabled_rb_mask);
+ if ((rdev->config.evergreen.max_backends == 1) &&
+ (rdev->flags & RADEON_IS_IGP)) {
+ if ((disabled_rb_mask & 3) == 1) {
+ /* RB0 disabled, RB1 enabled */
+ tmp = 0x11111111;
+ } else {
+ /* RB1 disabled, RB0 enabled */
+ tmp = 0x00000000;
+ }
+ } else {
+ tmp = gb_addr_config & NUM_PIPES_MASK;
+ tmp = r6xx_remap_render_backend(rdev, tmp,
rdev->config.evergreen.max_backends,
+ EVERGREEN_MAX_BACKENDS,
disabled_rb_mask);
+ }
WREG32(GB_BACKEND_MAP, tmp);
WREG32(CGTS_SYS_TCC_DISABLE, 0);
Patches currently in stable-queue which might be from [email protected]
are
queue-3.7/drm-radeon-fix-backend-map-setup-on-1-rb-sumo-boards.patch
queue-3.7/drm-radeon-protect-against-div-by-0-in-backend-setup.patch
queue-3.7/drm-radeon-fix-mc-blackout-on-evergreen.patch
queue-3.7/drm-radeon-add-quirk-for-rv100-board.patch
queue-3.7/drm-radeon-calling-object_unrefer-when-creating-fb-failure.patch
queue-3.7/drm-radeon-evergreen-wait-for-the-mc-to-settle-after-mc-blackout.patch
queue-3.7/drm-radeon-prevent-crash-in-the-ring-space-allocation.patch
queue-3.7/drm-radeon-add-wait_until-to-the-non-vm-safe-regs-list-for-cayman-tn.patch
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