From 521289d2a279b2fbea0450d5e8e6a01cf70a80b3 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Mon, 26 Jun 2023 10:04:04 -0500 Subject: drm/amd: Use attribute groups for PSP flashing attributes Individually creating attributes can be racy, instead make attributes using attribute groups and control their visibility with an is_visible callback to only show when using appropriate products. v2: squash in fix for PSP 13.0.10 Signed-off-by: Mario Limonciello Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 10 ------ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 51 +++++++++++++++--------------- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 2 -- 5 files changed, 28 insertions(+), 38 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 2f9c14aca73c..41b3f20729bc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1034,7 +1034,6 @@ struct amdgpu_device { bool has_pr3; bool ucode_sysfs_en; - bool psp_sysfs_en; /* Chip product information */ char product_number[20]; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index a92c6189b4b6..7f069e1731fe 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4050,14 +4050,6 @@ fence_driver_init: } else adev->ucode_sysfs_en = true; - r = amdgpu_psp_sysfs_init(adev); - if (r) { - adev->psp_sysfs_en = false; - if (!amdgpu_sriov_vf(adev)) - DRM_ERROR("Creating psp sysfs failed\n"); - } else - adev->psp_sysfs_en = true; - /* * Register gpu instance before amdgpu_device_enable_mgpu_fan_boost. * Otherwise the mgpu fan boost feature will be skipped due to the @@ -4207,8 +4199,6 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev) amdgpu_pm_sysfs_fini(adev); if (adev->ucode_sysfs_en) amdgpu_ucode_sysfs_fini(adev); - if (adev->psp_sysfs_en) - amdgpu_psp_sysfs_fini(adev); sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes); /* disable ras feature must before hw fini */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 0593ef8fe0a6..ae1369c01029 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2899,10 +2899,12 @@ static struct pci_error_handlers amdgpu_pci_err_handler = { extern const struct attribute_group amdgpu_vram_mgr_attr_group; extern const struct attribute_group amdgpu_gtt_mgr_attr_group; +extern const struct attribute_group amdgpu_flash_attr_group; static const struct attribute_group *amdgpu_sysfs_groups[] = { &amdgpu_vram_mgr_attr_group, &amdgpu_gtt_mgr_attr_group, + &amdgpu_flash_attr_group, NULL, }; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 6d676bdd1505..8753e1376e47 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -202,7 +202,6 @@ static int psp_early_init(void *handle) case IP_VERSION(13, 0, 3): case IP_VERSION(13, 0, 5): case IP_VERSION(13, 0, 8): - case IP_VERSION(13, 0, 10): case IP_VERSION(13, 0, 11): psp_v13_0_set_psp_funcs(psp); psp->autoload_supported = true; @@ -215,6 +214,7 @@ static int psp_early_init(void *handle) break; case IP_VERSION(13, 0, 0): case IP_VERSION(13, 0, 7): + case IP_VERSION(13, 0, 10): psp_v13_0_set_psp_funcs(psp); psp->autoload_supported = true; break; @@ -3677,6 +3677,13 @@ rel_buf: return 0; } +static struct bin_attribute psp_vbflash_bin_attr = { + .attr = {.name = "psp_vbflash", .mode = 0660}, + .size = 0, + .write = amdgpu_psp_vbflash_write, + .read = amdgpu_psp_vbflash_read, +}; + static ssize_t amdgpu_psp_vbflash_status(struct device *dev, struct device_attribute *attr, char *buf) @@ -3693,39 +3700,39 @@ static ssize_t amdgpu_psp_vbflash_status(struct device *dev, return sysfs_emit(buf, "0x%x\n", vbflash_status); } +static DEVICE_ATTR(psp_vbflash_status, 0440, amdgpu_psp_vbflash_status, NULL); -static const struct bin_attribute psp_vbflash_bin_attr = { - .attr = {.name = "psp_vbflash", .mode = 0660}, - .size = 0, - .write = amdgpu_psp_vbflash_write, - .read = amdgpu_psp_vbflash_read, +static struct attribute *flash_attrs[] = { + &dev_attr_psp_vbflash_status.attr, + &psp_vbflash_bin_attr.attr, + NULL }; -static DEVICE_ATTR(psp_vbflash_status, 0440, amdgpu_psp_vbflash_status, NULL); - -int amdgpu_psp_sysfs_init(struct amdgpu_device *adev) +static umode_t amdgpu_flash_attr_is_visible(struct kobject *kobj, struct attribute *attr, int idx) { - int ret = 0; + struct device *dev = kobj_to_dev(kobj); + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = drm_to_adev(ddev); if (amdgpu_sriov_vf(adev)) - return -EINVAL; + return 0; switch (adev->ip_versions[MP0_HWIP][0]) { case IP_VERSION(13, 0, 0): case IP_VERSION(13, 0, 7): - case IP_VERSION(13, 0, 10): - 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; + if (attr == &psp_vbflash_bin_attr.attr) + return 0660; + return 0440; default: return 0; } } +const struct attribute_group amdgpu_flash_attr_group = { + .attrs = flash_attrs, + .is_visible = amdgpu_flash_attr_is_visible, +}; + const struct amd_ip_funcs psp_ip_funcs = { .name = "psp", .early_init = psp_early_init, @@ -3754,12 +3761,6 @@ static int psp_sysfs_init(struct amdgpu_device *adev) return ret; } -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) { device_remove_file(adev->dev, &dev_attr_usbc_pd_fw); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index 2cae0b1a0b8a..4847aacdf9dc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -525,6 +525,4 @@ int psp_spatial_partition(struct psp_context *psp, int mode); int is_psp_fw_valid(struct psp_bin_desc bin); -int amdgpu_psp_sysfs_init(struct amdgpu_device *adev); -void amdgpu_psp_sysfs_fini(struct amdgpu_device *adev); #endif -- cgit v1.2.3