From: Lijo Lazar <lijo.lazar@amd.com>
Date: Thu, 29 May 2025 07:19:30 +0000 (+0530)
Subject: drm/amdgpu: Check pcie replays reporting support
X-Git-Tag: v6.17-rc1~110^2~13^2~162
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=196aefea44aa3f7f2dc93df637bc319139eea713;p=thirdparty%2Fkernel%2Flinux.git

drm/amdgpu: Check pcie replays reporting support

Check if pcie replay count reporting is supported before creating sysfs
attribute.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Mangesh Gadre <Mangesh.Gadre@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 6715d76ad03a7..13708dc7706a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -232,7 +232,7 @@ static int amdgpu_device_attr_sysfs_init(struct amdgpu_device *adev)
 {
 	int ret = 0;
 
-	if (!amdgpu_sriov_vf(adev))
+	if (amdgpu_nbio_is_replay_cnt_supported(adev))
 		ret = sysfs_create_file(&adev->dev->kobj,
 					&dev_attr_pcie_replay_count.attr);
 
@@ -241,7 +241,7 @@ static int amdgpu_device_attr_sysfs_init(struct amdgpu_device *adev)
 
 static void amdgpu_device_attr_sysfs_fini(struct amdgpu_device *adev)
 {
-	if (!amdgpu_sriov_vf(adev))
+	if (amdgpu_nbio_is_replay_cnt_supported(adev))
 		sysfs_remove_file(&adev->dev->kobj,
 				  &dev_attr_pcie_replay_count.attr);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c
index d085687a47ea1..e56ba93a8df64 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c
@@ -53,6 +53,15 @@ u64 amdgpu_nbio_get_pcie_replay_count(struct amdgpu_device *adev)
 	return 0;
 }
 
+bool amdgpu_nbio_is_replay_cnt_supported(struct amdgpu_device *adev)
+{
+	if (amdgpu_sriov_vf(adev) || !adev->asic_funcs->get_pcie_replay_count ||
+	    (!adev->nbio.funcs || !adev->nbio.funcs->get_pcie_replay_count))
+		return false;
+
+	return true;
+}
+
 int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block)
 {
 	int r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
index 79c2f807b9fe8..b528de6a01f6d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
@@ -119,4 +119,6 @@ int amdgpu_nbio_ras_sw_init(struct amdgpu_device *adev);
 int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block);
 u64 amdgpu_nbio_get_pcie_replay_count(struct amdgpu_device *adev);
 
+bool amdgpu_nbio_is_replay_cnt_supported(struct amdgpu_device *adev);
+
 #endif