diff options
| author | Likun Gao <Likun.Gao@amd.com> | 2022-05-05 15:45:06 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-05-10 17:53:10 -0400 |
| commit | dfc53681de592d31a6de894c9b9afb14634ec6aa (patch) | |
| tree | 78029c8e7a5760014bafc7b212dfcc5e84330842 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | |
| parent | 8424f2ccb3c0dd43369288a47d15c980136c3bd5 (diff) | |
drm/amdgpu: add sysfs to shows psp vbflash status
Add new sysfs interface to shows the status of psp vbflash status.
V2: rename the sysfs interface, and set more return value.
(0: not start; 1: in progress; MBX115 value when vbflash finish)
V3: warning fixes
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 78320f2566e5..d01050808626 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -3453,6 +3453,8 @@ static ssize_t amdgpu_psp_vbflash_write(struct file *filp, struct kobject *kobj, struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = drm_to_adev(ddev); + adev->psp.vbflash_done = false; + /* Safeguard against memory drain */ if (adev->psp.vbflash_image_size > AMD_VBIOS_FILE_MAX_SIZE_B) { dev_err(adev->dev, "File size cannot exceed %u", AMD_VBIOS_FILE_MAX_SIZE_B); @@ -3524,6 +3526,23 @@ rel_buf: return 0; } +static ssize_t amdgpu_psp_vbflash_status(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = drm_to_adev(ddev); + uint32_t vbflash_status; + + vbflash_status = psp_vbflash_status(&adev->psp); + if (!adev->psp.vbflash_done) + vbflash_status = 0; + else if (adev->psp.vbflash_done && !(vbflash_status & 0x80000000)) + vbflash_status = 1; + + return sysfs_emit(buf, "0x%x\n", vbflash_status); +} + static const struct bin_attribute psp_vbflash_bin_attr = { .attr = {.name = "psp_vbflash", .mode = 0664}, .size = 0, @@ -3531,6 +3550,8 @@ static const struct bin_attribute psp_vbflash_bin_attr = { .read = amdgpu_psp_vbflash_read, }; +static DEVICE_ATTR(psp_vbflash_status, 0444, amdgpu_psp_vbflash_status, NULL); + int amdgpu_psp_sysfs_init(struct amdgpu_device *adev) { int ret = 0; @@ -3549,6 +3570,9 @@ int amdgpu_psp_sysfs_init(struct amdgpu_device *adev) ret = sysfs_create_bin_file(&adev->dev->kobj, &psp_vbflash_bin_attr); if (ret) dev_err(adev->dev, "Failed to create device file psp_vbflash"); + ret = device_create_file(adev->dev, &dev_attr_psp_vbflash_status); + if (ret) + dev_err(adev->dev, "Failed to create device file psp_vbflash_status"); return ret; default: return 0; @@ -3586,6 +3610,7 @@ static int psp_sysfs_init(struct amdgpu_device *adev) void amdgpu_psp_sysfs_fini(struct amdgpu_device *adev) { sysfs_remove_bin_file(&adev->dev->kobj, &psp_vbflash_bin_attr); + device_remove_file(adev->dev, &dev_attr_psp_vbflash_status); } static void psp_sysfs_fini(struct amdgpu_device *adev) |