[PATCH] drm/amdgpu: replace iova debugfs file with iomem (v3)

This allows access to pages allocated through the driver with optional IOMMU mapping. v2: Fix number of bytes copied and add write method v3: drop check for kmap return Original-by: Christian König Signed-off-by: Tom St Denis --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 102 ++

[PATCH] drm/amdgpu: replace iova debugfs file with iomem (v3)

From: Christian König This allows access to pages allocated through the driver with optional IOMMU mapping. v2: Fix number of bytes copied and add write method v3: drop check for kmap return Original-by: Christian König Signed-off-by: Tom St Denis --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c