drm/radeon: fixup tiling group size and backendmap on r6xx-r9xx (v4)

Tiling group size is always 256bits on r6xx/r7xx/r8xx/9xx. Also fix and
simplify render backend map. This now properly sets up the backend map
on r6xx-9xx which should improve 3D performance.

Vadim benchmarked also:
Some benchmarks on juniper (5750), fullscreen 1920x1080,
first result - kernel 3.4.0+ (fb21affa), second - with these patches:

Lightsmark:   91 fps => 123 fps    +35%
Doom3:        74 fps => 101 fps    +36%

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index 3dd43e760362..2773039b4902 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -37,6 +37,15 @@
 #define EVERGREEN_MAX_PIPES_MASK        0xFF
 #define EVERGREEN_MAX_LDS_NUM           0xFFFF
 
+#define CYPRESS_GB_ADDR_CONFIG_GOLDEN        0x02011003
+#define BARTS_GB_ADDR_CONFIG_GOLDEN          0x02011003
+#define CAYMAN_GB_ADDR_CONFIG_GOLDEN         0x02011003
+#define JUNIPER_GB_ADDR_CONFIG_GOLDEN        0x02010002
+#define REDWOOD_GB_ADDR_CONFIG_GOLDEN        0x02010002
+#define TURKS_GB_ADDR_CONFIG_GOLDEN          0x02010002
+#define CEDAR_GB_ADDR_CONFIG_GOLDEN          0x02010001
+#define CAICOS_GB_ADDR_CONFIG_GOLDEN         0x02010001
+
 /* Registers */
 
 #define RCU_IND_INDEX                                   0x100
@@ -54,6 +63,7 @@
 #define         BACKEND_DISABLE(x)                      ((x) << 16)
 #define GB_ADDR_CONFIG                                  0x98F8
 #define         NUM_PIPES(x)                            ((x) << 0)
+#define         NUM_PIPES_MASK                          0x0000000f
 #define         PIPE_INTERLEAVE_SIZE(x)                 ((x) << 4)
 #define         BANK_INTERLEAVE_SIZE(x)                 ((x) << 8)
 #define         NUM_SHADER_ENGINES(x)                   ((x) << 12)