drm/radeon/kms: fix vram setup on rs600
also fix up rs690 mem width.
should fix fdo bug 25408
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index e7a5f87..81b8efc 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -131,19 +131,13 @@
void rs690_vram_info(struct radeon_device *rdev)
{
- uint32_t tmp;
fixed20_12 a;
rs400_gart_adjust_size(rdev);
/* DDR for all card after R300 & IGP */
rdev->mc.vram_is_ddr = true;
- /* FIXME: is this correct for RS690/RS740 ? */
- tmp = RREG32(RADEON_MEM_CNTL);
- if (tmp & R300_MEM_NUM_CHANNELS_MASK) {
- rdev->mc.vram_width = 128;
- } else {
- rdev->mc.vram_width = 64;
- }
+ rdev->mc.vram_width = 128;
+
rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
rdev->mc.mc_vram_size = rdev->mc.real_vram_size;