Attachment 51806 Details for Bug 40103 – workaround debugged on my caicos

[patch] workaround debugged on my caicos

0001-drm-radeon-kms-allow-KMS-to-start-on-CAICOS-chipset.patch (text/plain), 1.11 KB, created by Dave Airlie on 2011-09-30 12:14:21 UTC

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Creator: Dave Airlie

Created: 2011-09-30 12:14:21 UTC

Size: 1.11 KB

patch

obsolete

>From d1d0d9a0b6377fed5bd789af184c2ea905d06d5e Mon Sep 17 00:00:00 2001
>From: Dave Airlie <airlied@redhat.com>
>Date: Fri, 30 Sep 2011 20:07:55 +0100
>Subject: [PATCH] drm/radeon/kms: allow KMS to start on CAICOS chipset.
>
>I bisected this by loading fglrx + then radeon and removing large chunks of
>gpu init. This allows my CAICOS to start here, maybe AMD can track down
>what changed where.
>
>Signed-off-by: Dave Airlie <airlied@redhat.com>
>---
> drivers/gpu/drm/radeon/evergreen.c |    3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
>index e8a7467..b123b3b 100644
>--- a/drivers/gpu/drm/radeon/evergreen.c
>+++ b/drivers/gpu/drm/radeon/evergreen.c
>@@ -1629,7 +1629,8 @@ static void evergreen_program_channel_remap(struct radeon_device *rdev)
> 
> 	WREG32(TCP_CHAN_STEER_LO, tcp_chan_steer_lo);
> 	WREG32(TCP_CHAN_STEER_HI, tcp_chan_steer_hi);
>-	WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
>+	if (rdev->family != CHIP_CAICOS)
>+		WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
> }
> 
> static void evergreen_gpu_init(struct radeon_device *rdev)
>-- 
>1.7.6.2
>

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