From: Lizhi Hou <lizhi.hou@amd.com>
Date: Wed, 8 Oct 2025 04:53:24 +0000 (-0700)
Subject: accel/amdxdna: Resume power for creating and destroying hardware context
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e00f78679f5a3d98b650fc9397c4d358ab570725;p=thirdparty%2Fkernel%2Flinux.git

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 691fdb3b008ff..ab4d66f1325df 100644
--- 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: