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authorLinus Torvalds <torvalds@g5.osdl.org>2005-12-29 13:01:54 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-12-29 13:01:54 -0800
commit392c14beaca2ee85a98d0c6b453501be67423a20 (patch)
tree0cde7d5f7022c7ca05e3adf82749bbb9f593e998
parentbc781aa93e6dfa85aa251c8898f831031db55c49 (diff)
downloadlinux-linaro-stable-392c14beaca2ee85a98d0c6b453501be67423a20.tar.gz
Revert radeon AGP aperture offset changes
This reverts the series of commits 67dbb4ea33731415fe09c62149a34f472719ac1d 281ab031a8c9e5b593142eb4ec59a87faae8676a 47807ce381acc34a7ffee2b42e35e96c0f322e52 that changed the GART VM start offset. It fixed some machines, but seems to continually interact badly with some X versions. Quoth Ben Herrenschmidt: "So I think at this point, the best is that we keep the old bogus code that at least is consistent with the bug in the server. I'm working on a big patch to X that reworks the memory map stuff completely and fixes those issues on the server side, I'll do a DRM patch matching this X fix as well so that the memory map is only ever set in one place and with what I hope is a correct algorithm..." Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/char/drm/radeon_cp.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index b517ae515801..342302d46743 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -1312,8 +1312,6 @@ static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
- unsigned int mem_size, aper_size;
-
DRM_DEBUG("\n");
dev_priv->is_pci = init->is_pci;
@@ -1523,13 +1521,8 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
+ dev_priv->fb_location) >> 10));
dev_priv->gart_size = init->gart_size;
-
- mem_size = RADEON_READ(RADEON_CONFIG_MEMSIZE);
- if (mem_size == 0)
- mem_size = 0x800000;
- aper_size = max(RADEON_READ(RADEON_CONFIG_APER_SIZE), mem_size);
-
- dev_priv->gart_vm_start = dev_priv->fb_location + aper_size;
+ dev_priv->gart_vm_start = dev_priv->fb_location
+ + RADEON_READ(RADEON_CONFIG_APER_SIZE);
#if __OS_HAS_AGP
if (!dev_priv->is_pci)