diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1624-drm-amdgpu-more-descriptive-message-if-HMM-not-enabl.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1624-drm-amdgpu-more-descriptive-message-if-HMM-not-enabl.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1624-drm-amdgpu-more-descriptive-message-if-HMM-not-enabl.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1624-drm-amdgpu-more-descriptive-message-if-HMM-not-enabl.patch new file mode 100644 index 00000000..410b3586 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1624-drm-amdgpu-more-descriptive-message-if-HMM-not-enabl.patch @@ -0,0 +1,40 @@ +From d8226875c11385248e158b88ebd123391b0c3d30 Mon Sep 17 00:00:00 2001 +From: Philip Yang <Philip.Yang@amd.com> +Date: Mon, 4 Mar 2019 10:37:55 -0500 +Subject: [PATCH 1624/2940] drm/amdgpu: more descriptive message if HMM not + enabled +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +If using old kernel config file, CONFIG_ZONE_DEVICE is not selected, +so CONFIG_HMM and CONFIG_HMM_MIRROR is not enabled, the current driver +error message "Failed to register MMU notifier" is not clear. Inform +user with more descriptive message on how to fix the missing kernel +config option. + +Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109808 + +Change-Id: Idfebaeababa4c37c1ef093c2b91a26910a167585 +Signed-off-by: Philip Yang <Philip.Yang@amd.com> +Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h +index 4803e216e174..f5b67c63ed6b 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h +@@ -53,6 +53,8 @@ static inline struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev, + } + static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) + { ++ DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, " ++ "add CONFIG_ZONE_DEVICE=y in config file to fix this\n"); + return -ENODEV; + } + static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {} +-- +2.17.1 + |