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radeon: set the address to access the GART table on the CPU side correctly

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This code relied on the CPU and GPU address for the aperture being the same,
On some r5xx hardware I was playing with I noticed that this isn't always true.
This fixes issues seen on some r400 cards. (bugs.freedesktop.org 9957)

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2007-11-05 10:45:27 +10:00
parent 5da0c7aad6
commit 7fc86860cf
2 changed files with 4 additions and 2 deletions
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5
drivers/char/drm/radeon_cp.c
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@ -1679,7 +1679,7 @@ static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init)
dev_priv->gart_info.bus_addr =
dev_priv->pcigart_offset + dev_priv->fb_location;
dev_priv->gart_info.mapping.offset =
dev_priv->gart_info.bus_addr;
dev_priv->pcigart_offset + dev_priv->fb_aper_offset;
dev_priv->gart_info.mapping.size =
dev_priv->gart_info.table_size;
@ -2275,7 +2275,8 @@ int radeon_driver_firstopen(struct drm_device *dev)
if (ret != 0)
return ret;
ret = drm_addmap(dev, drm_get_resource_start(dev, 0),
dev_priv->fb_aper_offset = drm_get_resource_start(dev, 0);
ret = drm_addmap(dev, dev_priv->fb_aper_offset,
drm_get_resource_len(dev, 0), _DRM_FRAME_BUFFER,
_DRM_WRITE_COMBINING, &map);
if (ret != 0)

1
drivers/char/drm/radeon_drv.h
View file

@ -293,6 +293,7 @@ typedef struct drm_radeon_private {
/* starting from here on, data is preserved accross an open */
uint32_t flags; /* see radeon_chip_flags */
unsigned long fb_aper_offset;
} drm_radeon_private_t;
typedef struct drm_radeon_buf_priv {