. with the exception that we do not handle the AGP case. We only deal with PCIe cards such as ATI ES1000 or HD3200 that have been detected to only do DMA up to 32-bits.
Note: If the ttm.no_dma is set, this operation will not override the TTM page pool to use the DMA one.
CC: Dave Airlie airlied@redhat.com CC: Alex Deucher alexdeucher@gmail.com Signed-off-by: Konrad Rzeszutek Wilk konrad.wilk@oracle.com --- drivers/gpu/drm/radeon/radeon_ttm.c | 19 +++++++++++++++---- 1 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 60125dd..2e7419f 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -761,6 +761,10 @@ struct ttm_backend *radeon_ttm_backend_create(struct radeon_device *rdev) gtt->backend.bdev = &rdev->mman.bdev; gtt->backend.flags = 0; gtt->backend.func = &radeon_backend_func; + if (rdev->need_dma32) { + if (ttm_dma_override(gtt->backend.func)) + gtt->backend.dev = rdev->dev; + } gtt->rdev = rdev; gtt->pages = NULL; gtt->num_pages = 0; @@ -792,8 +796,8 @@ static int radeon_mm_dump_table(struct seq_file *m, void *data) static int radeon_ttm_debugfs_init(struct radeon_device *rdev) { #if defined(CONFIG_DEBUG_FS) - static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+1]; - static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+1][32]; + static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+2]; + static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+2][32]; unsigned i;
for (i = 0; i < RADEON_DEBUGFS_MEM_TYPES; i++) { @@ -815,8 +819,15 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev) radeon_mem_types_list[i].name = radeon_mem_types_names[i]; radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs; radeon_mem_types_list[i].driver_features = 0; - radeon_mem_types_list[i].data = NULL; - return radeon_debugfs_add_files(rdev, radeon_mem_types_list, RADEON_DEBUGFS_MEM_TYPES+1); + radeon_mem_types_list[i++].data = NULL; + if (rdev->need_dma32) { + sprintf(radeon_mem_types_names[i], "ttm_dma_page_pool"); + radeon_mem_types_list[i].name = radeon_mem_types_names[i]; + radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs; + radeon_mem_types_list[i].driver_features = 0; + radeon_mem_types_list[i++].data = NULL; + } + return radeon_debugfs_add_files(rdev, radeon_mem_types_list, i);
#endif return 0;