[PATCH 2/2] drm/amdgpu: Show vram vendor only if available

[Zhang, Hawking]

[AMD Official Use Only - General]

Series is

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Lazar, Lijo <Lijo.Lazar at amd.com>
Sent: Saturday, January 20, 2024 18:19
To: amd-gfx at lists.freedesktop.org
Cc: Zhang, Hawking <Hawking.Zhang at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: [PATCH 2/2] drm/amdgpu: Show vram vendor only if available

Ony if vram vendor info is available, show in sysfs.

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 08916538a615..8db880244324 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -221,8 +221,23 @@ static struct attribute *amdgpu_vram_mgr_attributes[] = {
        NULL
 };

+static umode_t amdgpu_vram_attrs_is_visible(struct kobject *kobj,
+                                           struct attribute *attr, int i) {
+       struct device *dev = kobj_to_dev(kobj);
+       struct drm_device *ddev = dev_get_drvdata(dev);
+       struct amdgpu_device *adev = drm_to_adev(ddev);
+
+       if (attr == &dev_attr_mem_info_vram_vendor.attr &&
+           !adev->gmc.vram_vendor)
+               return 0;
+
+       return attr->mode;
+}
+
 const struct attribute_group amdgpu_vram_mgr_attr_group = {
-       .attrs = amdgpu_vram_mgr_attributes
+       .attrs = amdgpu_vram_mgr_attributes,
+       .is_visible = amdgpu_vram_attrs_is_visible
 };

 /**
--
2.25.1