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authorDavid Yat Sin <David.YatSin@amd.com>2025-02-25 18:08:02 -0500
committerAlex Deucher <alexander.deucher@amd.com>2025-02-27 16:50:04 -0500
commite90711946b53590371ecce32e8fcc381a99d6333 (patch)
tree11b90403e5d6b98c28329073edd8efd197ccaef2 /include
parentdrm/amdgpu: Create a debug option to disable ring reset (diff)
downloadlinux-e90711946b53590371ecce32e8fcc381a99d6333.tar.gz
linux-e90711946b53590371ecce32e8fcc381a99d6333.zip
drm/amdkfd: clamp queue size to minimum
If queue size is less than minimum, clamp it to minimum to prevent underflow when writing queue mqd. Signed-off-by: David Yat Sin <David.YatSin@amd.com> Reviewed-by: Jay Cornwall <jay.cornwall@amd.com> Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/kfd_ioctl.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index fa9f9846b88e..b0160b09987c 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -62,6 +62,8 @@ struct kfd_ioctl_get_version_args {
#define KFD_MAX_QUEUE_PERCENTAGE 100
#define KFD_MAX_QUEUE_PRIORITY 15
+#define KFD_MIN_QUEUE_RING_SIZE 1024
+
struct kfd_ioctl_create_queue_args {
__u64 ring_base_address; /* to KFD */
__u64 write_pointer_address; /* from KFD */