diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2023-08-25 12:06:58 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-09-06 21:36:44 +0300 |
| commit | b93fb0fe24990f29a2da01abfcc0fd27cad7ff5b (patch) | |
| tree | 908d7493910592401b622257240eead05293f9bc /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | |
| parent | d519072d26949f9a00a679e112b0297306960696 (diff) | |
| download | linux-b93fb0fe24990f29a2da01abfcc0fd27cad7ff5b.tar.xz | |
drm/amdgpu: Add only valid firmware version nodes
Show only firmware version attributes that have valid version. Hide
others.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c index eecb0efeb15f..5aff383473f2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c @@ -679,15 +679,25 @@ const char *amdgpu_ucode_name(enum AMDGPU_UCODE_ID ucode_id) } } +static inline int amdgpu_ucode_is_valid(uint32_t fw_version) +{ + if (!fw_version) + return -EINVAL; + + return 0; +} + #define FW_VERSION_ATTR(name, mode, field) \ static ssize_t show_##name(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ + struct device_attribute *attr, char *buf) \ { \ struct drm_device *ddev = dev_get_drvdata(dev); \ struct amdgpu_device *adev = drm_to_adev(ddev); \ \ - return sysfs_emit(buf, "0x%08x\n", adev->field); \ + if (!buf) \ + return amdgpu_ucode_is_valid(adev->field); \ + \ + return sysfs_emit(buf, "0x%08x\n", adev->field); \ } \ static DEVICE_ATTR(name, mode, show_##name, NULL) @@ -732,9 +742,24 @@ static struct attribute *fw_attrs[] = { NULL }; +#define to_dev_attr(x) container_of(x, struct device_attribute, attr) + +static umode_t amdgpu_ucode_sys_visible(struct kobject *kobj, + struct attribute *attr, int idx) +{ + struct device_attribute *dev_attr = to_dev_attr(attr); + struct device *dev = kobj_to_dev(kobj); + + if (dev_attr->show(dev, dev_attr, NULL) == -EINVAL) + return 0; + + return attr->mode; +} + static const struct attribute_group fw_attr_group = { .name = "fw_version", - .attrs = fw_attrs + .attrs = fw_attrs, + .is_visible = amdgpu_ucode_sys_visible }; int amdgpu_ucode_sysfs_init(struct amdgpu_device *adev) |