From b27cf30995e05da11e827ec41060051673336a7b Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 5 Jun 2012 17:29:56 +0100 Subject: xserver/config: add udev/drm hotplug callbacks. (v2) This adds callbacks into the ddx for udev gpu hotplug. v2: fix some strncmp returns. Reviewed-by: Keith Packard Signed-off-by: Dave Airlie --- config/udev.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'config') diff --git a/config/udev.c b/config/udev.c index efa8d3257..5297b9009 100644 --- a/config/udev.c +++ b/config/udev.c @@ -52,6 +52,12 @@ static struct udev_monitor *udev_monitor; +#ifdef CONFIG_UDEV_KMS +static Bool +config_udev_odev_setup_attribs(const char *path, const char *syspath, + config_odev_probe_proc_ptr probe_callback); +#endif + static void device_added(struct udev_device *udev_device) { @@ -85,6 +91,20 @@ device_added(struct udev_device *udev_device) if (!SeatId && strcmp(dev_seat, "seat0")) return; +#ifdef CONFIG_UDEV_KMS + if (!strcmp(udev_device_get_subsystem(udev_device), "drm")) { + const char *sysname = udev_device_get_sysname(udev_device); + + if (strncmp(sysname, "card", 4) != 0) + return; + + LogMessage(X_INFO, "config/udev: Adding drm device (%s)\n", path); + + config_udev_odev_setup_attribs(path, syspath, NewGPUDeviceRequest); + return; + } +#endif + if (!udev_device_get_property_value(udev_device, "ID_INPUT")) { LogMessageVerb(X_INFO, 10, "config/udev: ignoring device %s without " @@ -240,6 +260,22 @@ device_removed(struct udev_device *device) char *value; const char *syspath = udev_device_get_syspath(device); +#ifdef CONFIG_UDEV_KMS + if (!strcmp(udev_device_get_subsystem(device), "drm")) { + const char *sysname = udev_device_get_sysname(device); + const char *path = udev_device_get_devnode(device); + + if (strncmp(sysname,"card", 4) != 0) + return; + ErrorF("removing GPU device %s %d\n", syspath, path); + if (!path) + return; + + config_udev_odev_setup_attribs(path, syspath, DeleteGPUDeviceRequest); + return; + } +#endif + if (asprintf(&value, "udev:%s", syspath) == -1) return; @@ -296,6 +332,9 @@ config_udev_pre_init(void) udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "input", NULL); udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL); /* For Wacom serial devices */ +#ifdef CONFIG_UDEV_KMS + udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "drm", NULL); /* For output GPU devices */ +#endif #ifdef HAVE_UDEV_MONITOR_FILTER_ADD_MATCH_TAG if (SeatId && strcmp(SeatId, "seat0")) @@ -322,6 +361,9 @@ config_udev_init(void) udev_enumerate_add_match_subsystem(enumerate, "input"); udev_enumerate_add_match_subsystem(enumerate, "tty"); +#ifdef CONFIG_UDEV_KMS + udev_enumerate_add_match_subsystem(enumerate, "drm"); +#endif #ifdef HAVE_UDEV_ENUMERATE_ADD_MATCH_TAG if (SeatId && strcmp(SeatId, "seat0")) -- cgit v1.2.3