I found an OOPS when I used the mainline kernel for graphical tests in Hisilicon D05, I do not know how to solve this problem until I saw your discussion on this issue a month ago:
https://lists.freedesktop.org/archives/dri-devel/2017-November/159046.html And my problem can be solved perfectly by your solution. This is important for me, I want to solve this problem as soon as possible. So I follow the result of your discussion, make and send these patches below. If anything is not good, please point it out, thanks. Change logs of v2: * add new function to instead of ttm_bo_default_io_mem_pfn() and do some cleanup. Tan Xiaojun (12): drm/ttm: add ttm_bo_io_mem_pfn to check io_mem_pfn drm/ast: remove the default io_mem_pfn set drm/bochs: remove the default io_mem_pfn set drm/cirrus: remove the default io_mem_pfn set drm/mgag200: remove the default io_mem_pfn set drm/nouveau: remove the default io_mem_pfn set drm/qxl: remove the default io_mem_pfn set drm/radeon: remove the default io_mem_pfn set drm/virtio: remove the default io_mem_pfn set drm/vmwgfx: remove the default io_mem_pfn set staging: remove the default io_mem_pfn set drm/ttm: remove ttm_bo_default_io_mem_pfn drivers/gpu/drm/ast/ast_ttm.c | 1 - drivers/gpu/drm/bochs/bochs_mm.c | 1 - drivers/gpu/drm/cirrus/cirrus_ttm.c | 1 - drivers/gpu/drm/mgag200/mgag200_ttm.c | 1 - drivers/gpu/drm/nouveau/nouveau_bo.c | 1 - drivers/gpu/drm/qxl/qxl_ttm.c | 1 - drivers/gpu/drm/radeon/radeon_ttm.c | 1 - drivers/gpu/drm/ttm/ttm_bo_vm.c | 22 +++++++++++++--------- drivers/gpu/drm/virtio/virtgpu_ttm.c | 1 - drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c | 1 - drivers/staging/vboxvideo/vbox_ttm.c | 1 - include/drm/ttm/ttm_bo_api.h | 11 ----------- 12 files changed, 13 insertions(+), 30 deletions(-) -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
