diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2615-drm-amdgpu-enable-PCIE-atomics-ops-support.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2615-drm-amdgpu-enable-PCIE-atomics-ops-support.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2615-drm-amdgpu-enable-PCIE-atomics-ops-support.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2615-drm-amdgpu-enable-PCIE-atomics-ops-support.patch new file mode 100644 index 00000000..804cffc0 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2615-drm-amdgpu-enable-PCIE-atomics-ops-support.patch @@ -0,0 +1,40 @@ +From 3e0a43d9fc5236d2b946e0e6bf089565daffc5be Mon Sep 17 00:00:00 2001 +From: Jack Xiao <Jack.Xiao@amd.com> +Date: Fri, 24 May 2019 00:13:14 +0800 +Subject: [PATCH 2615/2940] drm/amdgpu: enable PCIE atomics ops support + +GPU atomics operation depends on PCIE atomics support. +Always enable PCIE atomics ops support in case that +it hasn't been enabled. + +Signed-off-by: Jack Xiao <Jack.Xiao@amd.com> +Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +index 6a87bafbe2f2..4a76f062906e 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +@@ -2589,6 +2589,17 @@ int amdgpu_device_init(struct amdgpu_device *adev, + if (adev->rio_mem == NULL) + DRM_INFO("PCI I/O BAR is not found.\n"); + ++ /* enable PCIE atomic ops */ ++ r = pci_enable_atomic_ops_to_root(adev->pdev, ++ PCI_EXP_DEVCAP2_ATOMIC_COMP32 | ++ PCI_EXP_DEVCAP2_ATOMIC_COMP64); ++ if (r) { ++ adev->have_atomics_support = false; ++ DRM_INFO("PCIE atomic ops is not supported\n"); ++ } else { ++ adev->have_atomics_support = true; ++ } ++ + amdgpu_device_get_pcie_info(adev); + + if (amdgpu_mcbp) +-- +2.17.1 + |