FAILED: patch "[PATCH] drm/amd/pm: populate unique ID for smu 13.0.7" failed to apply to 6.18-stable tree

[Sasha Levin <sashal@kernel.org>]

The patch below does not apply to the 6.18-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.18.y
git checkout FETCH_HEAD
git cherry-pick -x 079f9103d9cde68fb2ccc414e94520f43ee102de
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '20261109200544-failed-6.18-079f9103d9cd@kernel.org' --subject-prefix 'PATCH 6.18.y' 'HEAD^..'

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From 079f9103d9cde68fb2ccc414e94520f43ee102de Mon Sep 17 00:00:00 2001
From: Kevin Wang <kevin.wang@amd.com>
Date: Thu, 29 Oct 2026 11:50:31 +0800
Subject: [PATCH] drm/amd/pm: populate unique ID for smu 13.0.7

The smu 13.0.7 backend does not register get_unique_id, leaving
adev->unique_id at zero and KFD topology without the stable GPU
identifier consumed by HIP.

The failure is observed at:
    auto ierr = hipDeviceGetUuid(&uuid, 0);

Fixes: 113cc31dde66 ("drm/amd/pm: add SMU_13_0_7 ppt_funcs for SMU_13_0_7")
Signed-off-by: Kevin Wang <kevin.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5e2585daaf8336d9ce1bf52e55a9b7a8cdbf625b)
Cc: stable@vger.kernel.org
---
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c  | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
index 8285d4a91589a..13e7e33fa0eb2 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
@@ -2912,6 +2912,25 @@ static int smu_v13_0_7_mode1_reset(struct smu_context *smu)
    return ret;
 }
 
+static void smu_v13_0_7_get_unique_id(struct smu_context *smu)
+{
+	SmuMetricsExternal_t metrics_external;
+	SmuMetrics_t *metrics = &metrics_external.SmuMetrics;
+	struct amdgpu_device *adev = smu->adev;
+	u32 upper32 = 0, lower32 = 0;
+	int ret;
+
+	ret = smu_cmn_get_metrics_table(smu, &metrics_external, false);
+	if (ret)
+		goto out;
+
+	upper32 = metrics->PublicSerialNumberUpper;
+	lower32 = metrics->PublicSerialNumberLower;
+
+out:
+	adev->unique_id = ((u64)upper32 << 32) | lower32;
+}
+
 static void smu_v13_0_7_init_msg_ctl(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
@@ -2995,6 +3014,7 @@ static const struct pptable_funcs smu_v13_0_7_ppt_funcs = {
 	.enable_uclk_shadow = smu_v13_0_enable_uclk_shadow,
 	.set_wbrf_exclusion_ranges = smu_v13_0_set_wbrf_exclusion_ranges,
 	.interrupt_work = smu_v13_0_interrupt_work,
+	.get_unique_id = smu_v13_0_7_get_unique_id,
 };
 
 void smu_v13_0_7_set_ppt_funcs(struct smu_context *smu)
-- 
2.53.0