user/sven/linux.git/drivers/gpu/drm, branch v4.4.162

drm/amdgpu: Fix SDMA HQD destroy error on gfx_v7

2018-10-20T07:52:33Z

[ Upstream commit caaa4c8a6be2a275bd14f2369ee364978ff74704 ] A wrong register bit was examinated for checking SDMA status so it reports false failures. This typo only appears on gfx_v7. gfx_v8 checks the correct bit. Acked-by: Alex Deucher Signed-off-by: Amber Lin Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS

2018-10-10T06:52:12Z

[ Upstream commit 0a6986c6595e9afd20ff7280dab36431c1e467f8 ] This Falcon application doesn't appear to be present on some newer systems, so let's not fail init if we can't find it. TBD: is there a way to determine whether it *should* be there? Signed-off-by: Ben Skeggs Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()

2018-09-29T10:08:53Z

commit 6833fb1ec120bf078e1a527c573a09d4de286224 upstream. It's true we can't resume the device from poll workers in nouveau_connector_detect(). We can however, prevent the autosuspend timer from elapsing immediately if it hasn't already without risking any sort of deadlock with the runtime suspend/resume operations. So do that instead of entirely avoiding grabbing a power reference. Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: stable@vger.kernel.org Cc: Lukas Wunner Signed-off-by: Ben Skeggs Signed-off-by: Greg Kroah-Hartman

drm/panel: type promotion bug in s6e8aa0_read_mtp_id()

2018-09-26T06:35:10Z

[ Upstream commit cd0e0ca69109d025b1a1b6609f70682db62138b0 ] The ARRAY_SIZE() macro is type size_t. If s6e8aa0_dcs_read() returns a negative error code, then "ret < ARRAY_SIZE(id)" is false because the negative error code is type promoted to a high positive value. Fixes: 02051ca06371 ("drm/panel: add S6E8AA0 driver") Signed-off-by: Dan Carpenter Reviewed-by: Andrzej Hajda Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20180704093807.s3lqsb2v6dg2k43d@kili.mountain Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/amdkfd: Fix error codes in kfd_get_process

2018-09-26T06:35:09Z

[ Upstream commit e47cb828eb3fca3e8999a0b9aa053dda18552071 ] Return ERR_PTR(-EINVAL) if kfd_get_process fails to find the process. This fixes kernel oopses when a child process calls KFD ioctls with a file descriptor inherited from the parent process. Signed-off-by: Wei Lu Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Acked-by: Christian König Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping

2018-09-26T06:35:09Z

[ Upstream commit b59fb482b52269977ee5de205308e5b236a03917 ] Depending on the kernel configuration, early ARM architecture setup code may have attached the GPU to a DMA/IOMMU mapping that transparently uses the IOMMU to back the DMA API. Tegra requires special handling for IOMMU backed buffers (a special bit in the GPU's MMU page tables indicates the memory path to take: via the SMMU or directly to the memory controller). Transparently backing DMA memory with an IOMMU prevents Nouveau from properly handling such memory accesses and causes memory access faults. As a side-note: buffers other than those allocated in instance memory don't need to be physically contiguous from the GPU's perspective since the GPU can map them into contiguous buffers using its own MMU. Mapping these buffers through the IOMMU is unnecessary and will even lead to performance degradation because of the additional translation. One exception to this are compressible buffers which need large pages. In order to enable these large pages, multiple small pages will have to be combined into one large (I/O virtually contiguous) mapping via the IOMMU. However, that is a topic outside the scope of this fix and isn't currently supported. An implementation will want to explicitly create these large pages in the Nouveau driver, so detaching from a DMA/IOMMU mapping would still be required. Signed-off-by: Thierry Reding Acked-by: Christoph Hellwig Reviewed-by: Robin Murphy Tested-by: Nicolas Chauvet Signed-off-by: Ben Skeggs Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/drivers: add support for using the arch wc mapping API.

2018-09-09T18:04:36Z

commit 7cf321d118a825c1541b43ca45294126fd474efa upstream. This fixes a regression in all these drivers since the cache mode tracking was fixed for mixed mappings. It uses the new arch API to add the VRAM range to the PAT mapping tracking tables. Fixes: 87744ab3832 (mm: fix cache mode tracking in vm_insert_mixed()) Reviewed-by: Christian König . Signed-off-by: Dave Airlie Cc: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

drm/i915/userptr: reject zero user_size

2018-09-09T18:04:32Z

commit c11c7bfd213495784b22ef82a69b6489f8d0092f upstream. Operating on a zero sized GEM userptr object will lead to explosions. Fixes: 5cc9ed4b9a7a ("drm/i915: Introduce mapping of user pages into video memory (userptr) ioctl") Testcase: igt/gem_userptr_blits/input-checking Signed-off-by: Matthew Auld Cc: Chris Wilson Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20180502195021.30900-1-matthew.auld@intel.com Cc: Loic Signed-off-by: Greg Kroah-Hartman

udl-kms: fix crash due to uninitialized memory

2018-09-05T07:18:39Z

commit 09a00abe3a9941c2715ca83eb88172cd2f54d8fd upstream. We must use kzalloc when allocating the fb_deferred_io structure. Otherwise, the field first_io is undefined and it causes a crash. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman

udl-kms: handle allocation failure

2018-09-05T07:18:39Z

commit 542bb9788a1f485eb1a2229178f665d8ea166156 upstream. Allocations larger than PAGE_ALLOC_COSTLY_ORDER are unreliable and they may fail anytime. This patch fixes the udl kms driver so that when a large alloactions fails, it tries to do multiple smaller allocations. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman