accel/amdxdna: Resume power for creating and destroying hardware context

When the hardware is powered down by auto-suspend, creating or destroying
a hardware context without resuming power will fail.
Call amdxdna_pm_resume_get() before requesting the hardware to create or
destroy a hardware context.

Fixes: 063db451832b ("accel/amdxdna: Enhance runtime power management")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/r/20251008045324.4171807-1-lizhi.hou@amd.com

diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
index 691fdb3b008ff31733f18707ce54a94534f9b843..ab4d66f1325dfacb48304891c51226dfb48b0950 100644 (file)
--- a/drivers/accel/amdxdna/aie2_ctx.c
+++ b/drivers/accel/amdxdna/aie2_ctx.c
@@ -610,10 +610,14 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
                goto free_entity;
        }
 
+       ret = amdxdna_pm_resume_get(xdna);
+       if (ret)
+               goto free_col_list;
+
        ret = aie2_alloc_resource(hwctx);
        if (ret) {
                XDNA_ERR(xdna, "Alloc hw resource failed, ret %d", ret);
-               goto free_col_list;
+               goto suspend_put;
        }
 
        ret = aie2_map_host_buf(xdna->dev_handle, hwctx->fw_ctx_id,
@@ -628,6 +632,7 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
                XDNA_ERR(xdna, "Create syncobj failed, ret %d", ret);
                goto release_resource;
        }
+       amdxdna_pm_suspend_put(xdna);
 
        hwctx->status = HWCTX_STAT_INIT;
        ndev = xdna->dev_handle;
@@ -640,6 +645,8 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
 
 release_resource:
        aie2_release_resource(hwctx);
+suspend_put:
+       amdxdna_pm_suspend_put(xdna);
 free_col_list:
        kfree(hwctx->col_list);
 free_entity: