diff options
Diffstat (limited to 'drivers/fpga/dfl-fme-pr.c')
| -rw-r--r-- | drivers/fpga/dfl-fme-pr.c | 118 |
1 files changed, 59 insertions, 59 deletions
diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c index d9ca9554844a..b878b260af38 100644 --- a/drivers/fpga/dfl-fme-pr.c +++ b/drivers/fpga/dfl-fme-pr.c @@ -65,7 +65,7 @@ static struct fpga_region *dfl_fme_region_find(struct dfl_fme *fme, int port_id) static int fme_pr(struct platform_device *pdev, unsigned long arg) { - struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct dfl_feature_dev_data *fdata = to_dfl_feature_dev_data(&pdev->dev); void __user *argp = (void __user *)arg; struct dfl_fpga_fme_port_pr port_pr; struct fpga_image_info *info; @@ -74,6 +74,7 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) struct dfl_fme *fme; unsigned long minsz; void *buf = NULL; + size_t length; int ret = 0; u64 v; @@ -85,12 +86,8 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) if (port_pr.argsz < minsz || port_pr.flags) return -EINVAL; - if (!IS_ALIGNED(port_pr.buffer_size, 4)) - return -EINVAL; - /* get fme header region */ - fme_hdr = dfl_get_feature_ioaddr_by_id(&pdev->dev, - FME_FEATURE_ID_HEADER); + fme_hdr = dfl_get_feature_ioaddr_by_id(fdata, FME_FEATURE_ID_HEADER); /* check port id */ v = readq(fme_hdr + FME_HDR_CAP); @@ -99,11 +96,13 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) return -EINVAL; } - if (!access_ok((void __user *)(unsigned long)port_pr.buffer_address, - port_pr.buffer_size)) - return -EFAULT; + /* + * align PR buffer per PR bandwidth, as HW ignores the extra padding + * data automatically. + */ + length = ALIGN(port_pr.buffer_size, 4); - buf = vmalloc(port_pr.buffer_size); + buf = vmalloc(length); if (!buf) return -ENOMEM; @@ -123,8 +122,8 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) info->flags |= FPGA_MGR_PARTIAL_RECONFIG; - mutex_lock(&pdata->lock); - fme = dfl_fpga_pdata_get_private(pdata); + mutex_lock(&fdata->lock); + fme = dfl_fpga_fdata_get_private(fdata); /* fme device has been unregistered. */ if (!fme) { ret = -EINVAL; @@ -140,7 +139,7 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) fpga_image_info_free(region->info); info->buf = buf; - info->count = port_pr.buffer_size; + info->count = length; info->region_id = port_pr.port_id; region->info = info; @@ -148,7 +147,7 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) /* * it allows userspace to reset the PR region's logic by disabling and - * reenabling the bridge to clear things out between accleration runs. + * reenabling the bridge to clear things out between acceleration runs. * so no need to hold the bridges after partial reconfiguration. */ if (region->get_bridges) @@ -156,27 +155,24 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg) put_device(®ion->dev); unlock_exit: - mutex_unlock(&pdata->lock); + mutex_unlock(&fdata->lock); free_exit: vfree(buf); - if (copy_to_user((void __user *)arg, &port_pr, minsz)) - return -EFAULT; - return ret; } /** * dfl_fme_create_mgr - create fpga mgr platform device as child device - * - * @pdata: fme platform_device's pdata + * @fdata: fme feature dev data + * @feature: sub feature info * * Return: mgr platform device if successful, and error code otherwise. */ static struct platform_device * -dfl_fme_create_mgr(struct dfl_feature_platform_data *pdata, +dfl_fme_create_mgr(struct dfl_feature_dev_data *fdata, struct dfl_feature *feature) { - struct platform_device *mgr, *fme = pdata->dev; + struct platform_device *mgr, *fme = fdata->dev; struct dfl_fme_mgr_pdata mgr_pdata; int ret = -ENOMEM; @@ -212,11 +208,11 @@ create_mgr_err: /** * dfl_fme_destroy_mgr - destroy fpga mgr platform device - * @pdata: fme platform device's pdata + * @fdata: fme feature dev data */ -static void dfl_fme_destroy_mgr(struct dfl_feature_platform_data *pdata) +static void dfl_fme_destroy_mgr(struct dfl_feature_dev_data *fdata) { - struct dfl_fme *priv = dfl_fpga_pdata_get_private(pdata); + struct dfl_fme *priv = dfl_fpga_fdata_get_private(fdata); platform_device_unregister(priv->mgr); } @@ -224,15 +220,15 @@ static void dfl_fme_destroy_mgr(struct dfl_feature_platform_data *pdata) /** * dfl_fme_create_bridge - create fme fpga bridge platform device as child * - * @pdata: fme platform device's pdata + * @fdata: fme feature dev data * @port_id: port id for the bridge to be created. * * Return: bridge platform device if successful, and error code otherwise. */ static struct dfl_fme_bridge * -dfl_fme_create_bridge(struct dfl_feature_platform_data *pdata, int port_id) +dfl_fme_create_bridge(struct dfl_feature_dev_data *fdata, int port_id) { - struct device *dev = &pdata->dev->dev; + struct device *dev = &fdata->dev->dev; struct dfl_fme_br_pdata br_pdata; struct dfl_fme_bridge *fme_br; int ret = -ENOMEM; @@ -241,7 +237,7 @@ dfl_fme_create_bridge(struct dfl_feature_platform_data *pdata, int port_id) if (!fme_br) return ERR_PTR(ret); - br_pdata.cdev = pdata->dfl_cdev; + br_pdata.cdev = fdata->dfl_cdev; br_pdata.port_id = port_id; fme_br->br = platform_device_alloc(DFL_FPGA_FME_BRIDGE, @@ -276,12 +272,12 @@ static void dfl_fme_destroy_bridge(struct dfl_fme_bridge *fme_br) } /** - * dfl_fme_destroy_bridge - destroy all fpga bridge platform device - * @pdata: fme platform device's pdata + * dfl_fme_destroy_bridges - destroy all fpga bridge platform device + * @fdata: fme feature dev data */ -static void dfl_fme_destroy_bridges(struct dfl_feature_platform_data *pdata) +static void dfl_fme_destroy_bridges(struct dfl_feature_dev_data *fdata) { - struct dfl_fme *priv = dfl_fpga_pdata_get_private(pdata); + struct dfl_fme *priv = dfl_fpga_fdata_get_private(fdata); struct dfl_fme_bridge *fbridge, *tmp; list_for_each_entry_safe(fbridge, tmp, &priv->bridge_list, node) { @@ -293,7 +289,7 @@ static void dfl_fme_destroy_bridges(struct dfl_feature_platform_data *pdata) /** * dfl_fme_create_region - create fpga region platform device as child * - * @pdata: fme platform device's pdata + * @fdata: fme feature dev data * @mgr: mgr platform device needed for region * @br: br platform device needed for region * @port_id: port id @@ -301,12 +297,12 @@ static void dfl_fme_destroy_bridges(struct dfl_feature_platform_data *pdata) * Return: fme region if successful, and error code otherwise. */ static struct dfl_fme_region * -dfl_fme_create_region(struct dfl_feature_platform_data *pdata, +dfl_fme_create_region(struct dfl_feature_dev_data *fdata, struct platform_device *mgr, struct platform_device *br, int port_id) { struct dfl_fme_region_pdata region_pdata; - struct device *dev = &pdata->dev->dev; + struct device *dev = &fdata->dev->dev; struct dfl_fme_region *fme_region; int ret = -ENOMEM; @@ -356,11 +352,11 @@ static void dfl_fme_destroy_region(struct dfl_fme_region *fme_region) /** * dfl_fme_destroy_regions - destroy all fme regions - * @pdata: fme platform device's pdata + * @fdata: fme feature dev data */ -static void dfl_fme_destroy_regions(struct dfl_feature_platform_data *pdata) +static void dfl_fme_destroy_regions(struct dfl_feature_dev_data *fdata) { - struct dfl_fme *priv = dfl_fpga_pdata_get_private(pdata); + struct dfl_fme *priv = dfl_fpga_fdata_get_private(fdata); struct dfl_fme_region *fme_region, *tmp; list_for_each_entry_safe(fme_region, tmp, &priv->region_list, node) { @@ -372,7 +368,7 @@ static void dfl_fme_destroy_regions(struct dfl_feature_platform_data *pdata) static int pr_mgmt_init(struct platform_device *pdev, struct dfl_feature *feature) { - struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct dfl_feature_dev_data *fdata = to_dfl_feature_dev_data(&pdev->dev); struct dfl_fme_region *fme_region; struct dfl_fme_bridge *fme_br; struct platform_device *mgr; @@ -381,18 +377,17 @@ static int pr_mgmt_init(struct platform_device *pdev, int ret = -ENODEV, i = 0; u64 fme_cap, port_offset; - fme_hdr = dfl_get_feature_ioaddr_by_id(&pdev->dev, - FME_FEATURE_ID_HEADER); + fme_hdr = dfl_get_feature_ioaddr_by_id(fdata, FME_FEATURE_ID_HEADER); - mutex_lock(&pdata->lock); - priv = dfl_fpga_pdata_get_private(pdata); + mutex_lock(&fdata->lock); + priv = dfl_fpga_fdata_get_private(fdata); /* Initialize the region and bridge sub device list */ INIT_LIST_HEAD(&priv->region_list); INIT_LIST_HEAD(&priv->bridge_list); /* Create fpga mgr platform device */ - mgr = dfl_fme_create_mgr(pdata, feature); + mgr = dfl_fme_create_mgr(fdata, feature); if (IS_ERR(mgr)) { dev_err(&pdev->dev, "fail to create fpga mgr pdev\n"); goto unlock; @@ -408,7 +403,7 @@ static int pr_mgmt_init(struct platform_device *pdev, continue; /* Create bridge for each port */ - fme_br = dfl_fme_create_bridge(pdata, i); + fme_br = dfl_fme_create_bridge(fdata, i); if (IS_ERR(fme_br)) { ret = PTR_ERR(fme_br); goto destroy_region; @@ -417,7 +412,7 @@ static int pr_mgmt_init(struct platform_device *pdev, list_add(&fme_br->node, &priv->bridge_list); /* Create region for each port */ - fme_region = dfl_fme_create_region(pdata, mgr, + fme_region = dfl_fme_create_region(fdata, mgr, fme_br->br, i); if (IS_ERR(fme_region)) { ret = PTR_ERR(fme_region); @@ -426,30 +421,30 @@ static int pr_mgmt_init(struct platform_device *pdev, list_add(&fme_region->node, &priv->region_list); } - mutex_unlock(&pdata->lock); + mutex_unlock(&fdata->lock); return 0; destroy_region: - dfl_fme_destroy_regions(pdata); - dfl_fme_destroy_bridges(pdata); - dfl_fme_destroy_mgr(pdata); + dfl_fme_destroy_regions(fdata); + dfl_fme_destroy_bridges(fdata); + dfl_fme_destroy_mgr(fdata); unlock: - mutex_unlock(&pdata->lock); + mutex_unlock(&fdata->lock); return ret; } static void pr_mgmt_uinit(struct platform_device *pdev, struct dfl_feature *feature) { - struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct dfl_feature_dev_data *fdata = to_dfl_feature_dev_data(&pdev->dev); - mutex_lock(&pdata->lock); + mutex_lock(&fdata->lock); - dfl_fme_destroy_regions(pdata); - dfl_fme_destroy_bridges(pdata); - dfl_fme_destroy_mgr(pdata); - mutex_unlock(&pdata->lock); + dfl_fme_destroy_regions(fdata); + dfl_fme_destroy_bridges(fdata); + dfl_fme_destroy_mgr(fdata); + mutex_unlock(&fdata->lock); } static long fme_pr_ioctl(struct platform_device *pdev, @@ -469,7 +464,12 @@ static long fme_pr_ioctl(struct platform_device *pdev, return ret; } -const struct dfl_feature_ops pr_mgmt_ops = { +const struct dfl_feature_id fme_pr_mgmt_id_table[] = { + {.id = FME_FEATURE_ID_PR_MGMT,}, + {0} +}; + +const struct dfl_feature_ops fme_pr_mgmt_ops = { .init = pr_mgmt_init, .uinit = pr_mgmt_uinit, .ioctl = fme_pr_ioctl, |