From d76856beb4a4a6c42244054cd780c00f2d33de4e Mon Sep 17 00:00:00 2001 From: Max Zhen Date: Fri, 20 Mar 2026 14:06:14 -0700 Subject: accel/amdxdna: Refactor GEM BO handling and add helper APIs for address retrieval Refactor amdxdna GEM buffer object (BO) handling to simplify address management and unify BO type semantics. Introduce helper APIs to retrieve commonly used BO addresses: - User virtual address (UVA) - Kernel virtual address (KVA) - Device address (IOVA/PA) These helpers centralize address lookup logic and avoid duplicating BO-specific handling across submission and execution paths. This also improves readability and reduces the risk of inconsistent address handling in future changes. As part of the refactor: - Rename SHMEM BO type to SHARE to better reflect its usage. - Merge CMD BO handling into SHARE, removing special-case logic for command buffers. - Consolidate BO type handling paths to reduce code duplication and simplify maintenance. No functional change is intended. The refactor prepares the driver for future enhancements by providing a cleaner abstraction for BO address management. Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Max Zhen Signed-off-by: Lizhi Hou Link: https://patch.msgid.link/20260320210615.1973016-1-lizhi.hou@amd.com --- include/uapi/drm/amdxdna_accel.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_accel.h index 5bd13f4435f5..bddaaaf945cf 100644 --- a/include/uapi/drm/amdxdna_accel.h +++ b/include/uapi/drm/amdxdna_accel.h @@ -156,10 +156,11 @@ struct amdxdna_drm_config_hwctx { enum amdxdna_bo_type { AMDXDNA_BO_INVALID = 0, - AMDXDNA_BO_SHMEM, - AMDXDNA_BO_DEV_HEAP, - AMDXDNA_BO_DEV, - AMDXDNA_BO_CMD, + AMDXDNA_BO_SHMEM = 1, /* Be compatible with legacy application code. */ + AMDXDNA_BO_SHARE = 1, + AMDXDNA_BO_DEV_HEAP = 2, + AMDXDNA_BO_DEV = 3, + AMDXDNA_BO_CMD = 4, }; /** -- cgit v1.2.3