[ 3.5.y.z extended stable ] Patch "drm/radeon/dce6: add missing display reg for tiling setup" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    drm/radeon/dce6: add missing display reg for tiling setup

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 1ac357caff63f0134e22263eb6f73f725012ba34 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher at amd.com>
Date: Fri, 5 Apr 2013 10:28:08 -0400
Subject: [PATCH] drm/radeon/dce6: add missing display reg for tiling setup

commit 7c1c7c18fc752b2a1d07597286467ef186312463 upstream.

A new tiling config register for the display blocks was
added on DCE6.

May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=62889
https://bugs.freedesktop.org/show_bug.cgi?id=57919

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
[ luis: adjust context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/gpu/drm/radeon/ni.c  | 2 ++
 drivers/gpu/drm/radeon/nid.h | 4 ++++
 drivers/gpu/drm/radeon/si.c  | 1 +
 drivers/gpu/drm/radeon/sid.h | 2 ++
 4 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 0aa705e..09853ac 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -619,6 +619,8 @@ static void cayman_gpu_init(struct radeon_device *rdev)

 	WREG32(GB_ADDR_CONFIG, gb_addr_config);
 	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
+	if (ASIC_IS_DCE6(rdev))
+		WREG32(DMIF_ADDR_CALC, gb_addr_config);
 	WREG32(HDP_ADDR_CONFIG, gb_addr_config);

 	if ((rdev->config.cayman.max_backends_per_se == 1) &&
diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index 5e76c2f5..dd334a2 100644
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -45,6 +45,10 @@
 #define ARUBA_GB_ADDR_CONFIG_GOLDEN        0x12010001

 #define DMIF_ADDR_CONFIG  				0xBD4
+
+/* DCE6 only */
+#define DMIF_ADDR_CALC  				0xC00
+
 #define	SRBM_GFX_CNTL				        0x0E44
 #define		RINGID(x)					(((x) & 0x3) << 0)
 #define		VMID(x)						(((x) & 0x7) << 0)
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 29e42de..bc044f5 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1659,6 +1659,7 @@ static void si_gpu_init(struct radeon_device *rdev)

 	WREG32(GB_ADDR_CONFIG, gb_addr_config);
 	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
+	WREG32(DMIF_ADDR_CALC, gb_addr_config);
 	WREG32(HDP_ADDR_CONFIG, gb_addr_config);

 	si_tiling_mode_table_init(rdev);
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 06b17e6..916e13f 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -60,6 +60,8 @@

 #define DMIF_ADDR_CONFIG  				0xBD4

+#define DMIF_ADDR_CALC  				0xC00
+
 #define	SRBM_STATUS				        0xE50

 #define	CC_SYS_RB_BACKEND_DISABLE			0xe80
--
1.8.1.2