From: Alexandre Courbot Date: Thu, 3 Mar 2016 07:03:02 +0000 (+0900) Subject: drm/nouveau/device/pci: set as non-CPU-coherent on ARM64 X-Git-Tag: v5.15~13791^2~2^2~53 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1733a2ad36741b1812cf8b3f3037c28d0af53f50;p=platform%2Fkernel%2Flinux-starfive.git drm/nouveau/device/pci: set as non-CPU-coherent on ARM64 Without this buffer inconsistencies may appear between the CPU and GPU when using a PCI GPU on an ARM64 board. Signed-off-by: Alexandre Courbot Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c index 62ad030..18fab397 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c @@ -1614,7 +1614,7 @@ nvkm_device_pci_func = { .fini = nvkm_device_pci_fini, .resource_addr = nvkm_device_pci_resource_addr, .resource_size = nvkm_device_pci_resource_size, - .cpu_coherent = !IS_ENABLED(CONFIG_ARM), + .cpu_coherent = !IS_ENABLED(CONFIG_ARM) && !IS_ENABLED(CONFIG_ARM64), }; int