Commit 365048ff authored by Michel Dänzer's avatar Michel Dänzer Committed by Dave Airlie
Browse files

drm/radeon: AGP memory is only I/O if the aperture can be mapped by the CPU.

Fixes AGP initialization failure with Apple UniNorth bridges due to trying to
ioremap() normal RAM.

Signed-off-by: default avatarMichel Dänzer <>
Signed-off-by: default avatarDave Airlie <>
parent 45737447
......@@ -451,7 +451,7 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
/* RADEON_IS_AGP is set only if AGP is active */
mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
mem->bus.base = rdev->mc.agp_base;
mem->bus.is_iomem = true;
mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
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