From 9b8d5a124f133fe9a75397d20b874844a2e3d7e9 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 7 Feb 2009 11:15:41 +1000 Subject: [PATCH] drm/radeon: fix ioremap conflict with AGP mappings this solves a regression from http://bugzilla.kernel.org/show_bug.cgi?id=12441 Reported-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_memory.c | 7 ++++++- drivers/gpu/drm/radeon/radeon_cp.c | 6 +++--- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c index 803bc9e7ce3c..bcc869bc4092 100644 --- a/drivers/gpu/drm/drm_memory.c +++ b/drivers/gpu/drm/drm_memory.c @@ -171,9 +171,14 @@ EXPORT_SYMBOL(drm_core_ioremap); void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev) { - map->handle = ioremap_wc(map->offset, map->size); + if (drm_core_has_AGP(dev) && + dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) + map->handle = agp_remap(map->offset, map->size, dev); + else + map->handle = ioremap_wc(map->offset, map->size); } EXPORT_SYMBOL(drm_core_ioremap_wc); + void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev) { if (!map->handle || !map->size) diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c index 63212d7bbc28..df4cf97e5d97 100644 --- a/drivers/gpu/drm/radeon/radeon_cp.c +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -1039,9 +1039,9 @@ static int radeon_do_init_cp(struct drm_device *dev, drm_radeon_init_t *init, #if __OS_HAS_AGP if (dev_priv->flags & RADEON_IS_AGP) { - drm_core_ioremap(dev_priv->cp_ring, dev); - drm_core_ioremap(dev_priv->ring_rptr, dev); - drm_core_ioremap(dev->agp_buffer_map, dev); + drm_core_ioremap_wc(dev_priv->cp_ring, dev); + drm_core_ioremap_wc(dev_priv->ring_rptr, dev); + drm_core_ioremap_wc(dev->agp_buffer_map, dev); if (!dev_priv->cp_ring->handle || !dev_priv->ring_rptr->handle || !dev->agp_buffer_map->handle) { -- 2.30.2