From 134ee531e7d3cdba4071d9f1bda7273cd75af2a1 Mon Sep 17 00:00:00 2001
From: Lang Yu <lang.yu@amd.com>
Date: Fri, 3 Dec 2021 14:30:16 +0800
Subject: drm/amdgpu: only hw fini SMU fisrt for ASICs need that
Git-commit: 613aa3ea74ae012d4ff7a6e6ed6d288b6212e4f1
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
We found some headaches on ASICs don't need that,
so remove that for them.
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: Kevin Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 47 +++++++++++++++-------
1 file changed, 32 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 8f9c991a8f50..6102d1ac248c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2657,6 +2657,36 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
return 0;
}
+/**
+ * amdgpu_device_smu_fini_early - smu hw_fini wrapper
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * For ASICs need to disable SMC first
+ */
+static void amdgpu_device_smu_fini_early(struct amdgpu_device *adev)
+{
+ int i, r;
+
+ if (adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0))
+ return;
+
+ for (i = 0; i < adev->num_ip_blocks; i++) {
+ if (!adev->ip_blocks[i].status.hw)
+ continue;
+ if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
+ r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
+ /* XXX handle errors */
+ if (r) {
+ DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
+ adev->ip_blocks[i].version->funcs->name, r);
+ }
+ adev->ip_blocks[i].status.hw = false;
+ break;
+ }
+ }
+}
+
static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev)
{
int i, r;
@@ -2677,21 +2707,8 @@ static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev)
amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
- /* need to disable SMC first */
- for (i = 0; i < adev->num_ip_blocks; i++) {
- if (!adev->ip_blocks[i].status.hw)
- continue;
- if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
- r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
- /* XXX handle errors */
- if (r) {
- DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
- adev->ip_blocks[i].version->funcs->name, r);
- }
- adev->ip_blocks[i].status.hw = false;
- break;
- }
- }
+ /* Workaroud for ASICs need to disable SMC first */
+ amdgpu_device_smu_fini_early(adev);
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
if (!adev->ip_blocks[i].status.hw)
--
2.38.1