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diff --git a/sys/compat/linsysfs/linsysfs.c b/sys/compat/linsysfs/linsysfs.c
--- a/sys/compat/linsysfs/linsysfs.c
+++ b/sys/compat/linsysfs/linsysfs.c
@@ -200,6 +200,9 @@
return (0);
}
+/* Linux DRM render nodes start at minor 128 (see include/drm/drm_file.h). */
+#define DRM_RENDER_MINOR_BASE 128
+
/*
* Filler function for drm uevent file
*/
@@ -217,6 +220,19 @@
return (0);
}
+static int
+linsysfs_fill_uevent_drm_render(PFS_FILL_ARGS)
+{
+ device_t dev;
+ int unit;
+
+ dev = (device_t)pn->pn_data;
+ unit = device_get_unit(dev);
+ sbuf_printf(sb, "MAJOR=226\nMINOR=%d\nDEVNAME=dri/renderD%d\n",
+ unit + DRM_RENDER_MINOR_BASE, unit + DRM_RENDER_MINOR_BASE);
+ return (0);
+}
+
static char *
get_full_pfs_path(struct pfs_node *cur)
{
@@ -259,7 +275,7 @@
struct pfs_node *chardev, struct pfs_node *drm, char *path, char *prefix)
{
struct scsi_host_queue *scsi_host;
- struct pfs_node *sub_dir, *cur_file;
+ struct pfs_node *sub_dir, *cur_file, *drm_dir, *drm_minor;
int i, nchildren, error;
device_t *children, parent;
devclass_t devclass;
@@ -378,7 +394,7 @@
device_get_unit(dev) >= 0) {
dinfo = device_get_ivars(parent);
if (dinfo != NULL && dinfo->cfg.baseclass == PCIC_DISPLAY) {
- pfs_create_dir(dir, NULL, "drm", NULL, NULL,
+ pfs_create_dir(dir, &drm_dir, "drm", NULL, NULL,
NULL, 0);
sprintf(devname, "226:%d",
device_get_unit(dev));
@@ -400,6 +416,44 @@
&linsysfs_fill_vgapci, NULL, NULL, NULL,
PFS_RD);
cur_file->pn_data = (void*)dir;
+
+ pfs_create_dir(drm_dir, &drm_minor, devname,
+ NULL, NULL, NULL, 0);
+ pfs_create_file(drm_minor, &cur_file, "uevent",
+ &linsysfs_fill_uevent_drm, NULL, NULL, NULL,
+ PFS_RD);
+ cur_file->pn_data = (void *)dev;
+
+ sprintf(devname, "226:%d",
+ device_get_unit(dev) +
+ DRM_RENDER_MINOR_BASE);
+ pfs_create_dir(chardev, &sub_dir, devname, NULL,
+ NULL, NULL, 0);
+ pfs_create_link(sub_dir, &cur_file, "device",
+ &linsysfs_fill_vgapci, NULL, NULL, NULL,
+ PFS_RD);
+ cur_file->pn_data = (void *)dir;
+ pfs_create_file(sub_dir, &cur_file, "uevent",
+ &linsysfs_fill_uevent_drm_render, NULL,
+ NULL, NULL, PFS_RD);
+ cur_file->pn_data = (void *)dev;
+
+ sprintf(devname, "renderD%d",
+ device_get_unit(dev) +
+ DRM_RENDER_MINOR_BASE);
+ pfs_create_dir(drm, &sub_dir, devname, NULL,
+ NULL, NULL, 0);
+ pfs_create_link(sub_dir, &cur_file, "device",
+ &linsysfs_fill_vgapci, NULL, NULL, NULL,
+ PFS_RD);
+ cur_file->pn_data = (void *)dir;
+
+ pfs_create_dir(drm_dir, &drm_minor, devname,
+ NULL, NULL, NULL, 0);
+ pfs_create_file(drm_minor, &cur_file, "uevent",
+ &linsysfs_fill_uevent_drm_render, NULL,
+ NULL, NULL, PFS_RD);
+ cur_file->pn_data = (void *)dev;
}
}
}

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