diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2220-drm-amdgpu-align-GTT-start-to-4GB-v2.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2220-drm-amdgpu-align-GTT-start-to-4GB-v2.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2220-drm-amdgpu-align-GTT-start-to-4GB-v2.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2220-drm-amdgpu-align-GTT-start-to-4GB-v2.patch new file mode 100644 index 00000000..7c93dc1a --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2220-drm-amdgpu-align-GTT-start-to-4GB-v2.patch @@ -0,0 +1,38 @@ +From 8224e35e359ccac5154f05f9f1fe4cfcafed61c5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com> +Date: Thu, 16 Nov 2017 20:12:51 +0100 +Subject: [PATCH 2220/4131] drm/amdgpu: align GTT start to 4GB v2 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +For VCE to work properly the start of the GTT space must be aligned to a +4GB boundary. + +v2: add comment why we do this + +Signed-off-by: Christian König <christian.koenig@amd.com> +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +index 3b653ed..ddb2716 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +@@ -619,7 +619,10 @@ void amdgpu_gart_location(struct amdgpu_device *adev, struct amdgpu_mc *mc) + dev_warn(adev->dev, "limiting GTT\n"); + mc->gart_size = size_af; + } +- mc->gart_start = mc->vram_end + 1; ++ /* VCE doesn't like it when BOs cross a 4GB segment, so align ++ * the GART base on a 4GB boundary as well. ++ */ ++ mc->gart_start = ALIGN(mc->vram_end + 1, 0x100000000ULL); + } + mc->gart_end = mc->gart_start + mc->gart_size - 1; + dev_info(adev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n", +-- +2.7.4 + |