/**
- * \file xf86drm.c
+ * \file xf86drm.c
* User-level interface to DRM device
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
* DEALINGS IN THE SOFTWARE.
*/
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <stdarg.h>
-#ifdef HAVE_SYS_MKDEV_H
-# include <sys/mkdev.h> /* defines major(), minor(), and makedev() on Solaris */
+#ifdef MAJOR_IN_MKDEV
+#include <sys/mkdev.h>
+#endif
+#ifdef MAJOR_IN_SYSMACROS
+#include <sys/sysmacros.h>
+#endif
+#if HAVE_SYS_SYSCTL_H
+#include <sys/sysctl.h>
#endif
#include <math.h>
+#if defined(__FreeBSD__)
+#include <sys/param.h>
+#include <sys/pciio.h>
+#endif
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
/* Not all systems have MAP_FAILED defined */
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#include "util_math.h"
-#ifdef __OpenBSD__
-#define DRM_PRIMARY_MINOR_NAME "drm"
-#define DRM_CONTROL_MINOR_NAME "drmC"
-#define DRM_RENDER_MINOR_NAME "drmR"
-#else
-#define DRM_PRIMARY_MINOR_NAME "card"
-#define DRM_CONTROL_MINOR_NAME "controlD"
-#define DRM_RENDER_MINOR_NAME "renderD"
-#endif
-
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+#ifdef __DragonFly__
#define DRM_MAJOR 145
#endif
#endif /* __OpenBSD__ */
#ifndef DRM_MAJOR
-#define DRM_MAJOR 226 /* Linux */
+#define DRM_MAJOR 226 /* Linux */
+#endif
+
+#if defined(__OpenBSD__) || defined(__DragonFly__)
+struct drm_pciinfo {
+ uint16_t domain;
+ uint8_t bus;
+ uint8_t dev;
+ uint8_t func;
+ uint16_t vendor_id;
+ uint16_t device_id;
+ uint16_t subvendor_id;
+ uint16_t subdevice_id;
+ uint8_t revision_id;
+};
+
+#define DRM_IOCTL_GET_PCIINFO DRM_IOR(0x15, struct drm_pciinfo)
#endif
#define DRM_MSG_VERBOSITY 3
static drmServerInfoPtr drm_server_info;
-void drmSetServerInfo(drmServerInfoPtr info)
+static bool drmNodeIsDRM(int maj, int min);
+static char *drmGetMinorNameForFD(int fd, int type);
+
+static unsigned log2_int(unsigned x)
+{
+ unsigned l;
+
+ if (x < 2) {
+ return 0;
+ }
+ for (l = 2; ; l++) {
+ if ((unsigned)(1 << l) > x) {
+ return l - 1;
+ }
+ }
+ return 0;
+}
+
+
+drm_public void drmSetServerInfo(drmServerInfoPtr info)
{
drm_server_info = info;
}
return vfprintf(stderr, format, ap);
}
-void
+drm_public void
drmMsg(const char *format, ...)
{
- va_list ap;
+ va_list ap;
const char *env;
if (((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) ||
(drm_server_info && drm_server_info->debug_print))
{
- va_start(ap, format);
- if (drm_server_info) {
- drm_server_info->debug_print(format,ap);
- } else {
- drmDebugPrint(format, ap);
- }
- va_end(ap);
+ va_start(ap, format);
+ if (drm_server_info) {
+ drm_server_info->debug_print(format,ap);
+ } else {
+ drmDebugPrint(format, ap);
+ }
+ va_end(ap);
}
}
static void *drmHashTable = NULL; /* Context switch callbacks */
-void *drmGetHashTable(void)
+drm_public void *drmGetHashTable(void)
{
return drmHashTable;
}
-void *drmMalloc(int size)
+drm_public void *drmMalloc(int size)
{
return calloc(1, size);
}
-void drmFree(void *pt)
+drm_public void drmFree(void *pt)
{
free(pt);
}
/**
- * Call ioctl, restarting if it is interupted
+ * Call ioctl, restarting if it is interrupted
*/
-int
+drm_public int
drmIoctl(int fd, unsigned long request, void *arg)
{
- int ret;
+ int ret;
do {
- ret = ioctl(fd, request, arg);
+ ret = ioctl(fd, request, arg);
} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
return ret;
}
return st.st_rdev;
}
-drmHashEntry *drmGetEntry(int fd)
+drm_public drmHashEntry *drmGetEntry(int fd)
{
unsigned long key = drmGetKeyFromFd(fd);
void *value;
drmHashEntry *entry;
if (!drmHashTable)
- drmHashTable = drmHashCreate();
+ drmHashTable = drmHashCreate();
if (drmHashLookup(drmHashTable, key, &value)) {
- entry = drmMalloc(sizeof(*entry));
- entry->fd = fd;
- entry->f = NULL;
- entry->tagTable = drmHashCreate();
- drmHashInsert(drmHashTable, key, entry);
+ entry = drmMalloc(sizeof(*entry));
+ entry->fd = fd;
+ entry->f = NULL;
+ entry->tagTable = drmHashCreate();
+ drmHashInsert(drmHashTable, key, entry);
} else {
- entry = value;
+ entry = value;
}
return entry;
}
{
/* First, check if the IDs are exactly the same */
if (strcasecmp(id1, id2) == 0)
- return 1;
+ return 1;
/* Try to match old/new-style PCI bus IDs. */
if (strncasecmp(id1, "pci", 3) == 0) {
- unsigned int o1, b1, d1, f1;
- unsigned int o2, b2, d2, f2;
- int ret;
-
- ret = sscanf(id1, "pci:%04x:%02x:%02x.%u", &o1, &b1, &d1, &f1);
- if (ret != 4) {
- o1 = 0;
- ret = sscanf(id1, "PCI:%u:%u:%u", &b1, &d1, &f1);
- if (ret != 3)
- return 0;
- }
+ unsigned int o1, b1, d1, f1;
+ unsigned int o2, b2, d2, f2;
+ int ret;
+
+ ret = sscanf(id1, "pci:%04x:%02x:%02x.%u", &o1, &b1, &d1, &f1);
+ if (ret != 4) {
+ o1 = 0;
+ ret = sscanf(id1, "PCI:%u:%u:%u", &b1, &d1, &f1);
+ if (ret != 3)
+ return 0;
+ }
- ret = sscanf(id2, "pci:%04x:%02x:%02x.%u", &o2, &b2, &d2, &f2);
- if (ret != 4) {
- o2 = 0;
- ret = sscanf(id2, "PCI:%u:%u:%u", &b2, &d2, &f2);
- if (ret != 3)
- return 0;
- }
+ ret = sscanf(id2, "pci:%04x:%02x:%02x.%u", &o2, &b2, &d2, &f2);
+ if (ret != 4) {
+ o2 = 0;
+ ret = sscanf(id2, "PCI:%u:%u:%u", &b2, &d2, &f2);
+ if (ret != 3)
+ return 0;
+ }
- /* If domains aren't properly supported by the kernel interface,
- * just ignore them, which sucks less than picking a totally random
- * card with "open by name"
- */
- if (!pci_domain_ok)
- o1 = o2 = 0;
+ /* If domains aren't properly supported by the kernel interface,
+ * just ignore them, which sucks less than picking a totally random
+ * card with "open by name"
+ */
+ if (!pci_domain_ok)
+ o1 = o2 = 0;
- if ((o1 != o2) || (b1 != b2) || (d1 != d2) || (f1 != f2))
- return 0;
- else
- return 1;
+ if ((o1 != o2) || (b1 != b2) || (d1 != d2) || (f1 != f2))
+ return 0;
+ else
+ return 1;
}
return 0;
}
*
* \internal
* Checks for failure. If failure was caused by signal call chown again.
- * If any other failure happened then it will output error mesage using
+ * If any other failure happened then it will output error message using
* drmMsg() call.
*/
-#if !defined(UDEV)
+#if !UDEV
static int chown_check_return(const char *path, uid_t owner, gid_t group)
{
- int rv;
+ int rv;
- do {
- rv = chown(path, owner, group);
- } while (rv != 0 && errno == EINTR);
+ do {
+ rv = chown(path, owner, group);
+ } while (rv != 0 && errno == EINTR);
- if (rv == 0)
- return 0;
+ if (rv == 0)
+ return 0;
- drmMsg("Failed to change owner or group for file %s! %d: %s\n",
- path, errno, strerror(errno));
- return -1;
+ drmMsg("Failed to change owner or group for file %s! %d: %s\n",
+ path, errno, strerror(errno));
+ return -1;
}
#endif
+static const char *drmGetDeviceName(int type)
+{
+ switch (type) {
+ case DRM_NODE_PRIMARY:
+ return DRM_DEV_NAME;
+ case DRM_NODE_CONTROL:
+ return DRM_CONTROL_DEV_NAME;
+ case DRM_NODE_RENDER:
+ return DRM_RENDER_DEV_NAME;
+ }
+ return NULL;
+}
+
/**
* Open the DRM device, creating it if necessary.
*
* \param dev major and minor numbers of the device.
* \param minor minor number of the device.
- *
+ *
* \return a file descriptor on success, or a negative value on error.
*
* \internal
static int drmOpenDevice(dev_t dev, int minor, int type)
{
stat_t st;
- const char *dev_name;
- char buf[64];
+ const char *dev_name = drmGetDeviceName(type);
+ char buf[DRM_NODE_NAME_MAX];
int fd;
mode_t devmode = DRM_DEV_MODE, serv_mode;
gid_t serv_group;
-#if !defined(UDEV)
+#if !UDEV
int isroot = !geteuid();
uid_t user = DRM_DEV_UID;
gid_t group = DRM_DEV_GID;
#endif
- switch (type) {
- case DRM_NODE_PRIMARY:
- dev_name = DRM_DEV_NAME;
- break;
- case DRM_NODE_CONTROL:
- dev_name = DRM_CONTROL_DEV_NAME;
- break;
- case DRM_NODE_RENDER:
- dev_name = DRM_RENDER_DEV_NAME;
- break;
- default:
- return -EINVAL;
- };
+ if (!dev_name)
+ return -EINVAL;
sprintf(buf, dev_name, DRM_DIR_NAME, minor);
drmMsg("drmOpenDevice: node name is %s\n", buf);
if (drm_server_info && drm_server_info->get_perms) {
- drm_server_info->get_perms(&serv_group, &serv_mode);
- devmode = serv_mode ? serv_mode : DRM_DEV_MODE;
- devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH);
+ drm_server_info->get_perms(&serv_group, &serv_mode);
+ devmode = serv_mode ? serv_mode : DRM_DEV_MODE;
+ devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH);
}
-#if !defined(UDEV)
+#if !UDEV
if (stat(DRM_DIR_NAME, &st)) {
- if (!isroot)
- return DRM_ERR_NOT_ROOT;
- mkdir(DRM_DIR_NAME, DRM_DEV_DIRMODE);
- chown_check_return(DRM_DIR_NAME, 0, 0); /* root:root */
- chmod(DRM_DIR_NAME, DRM_DEV_DIRMODE);
+ if (!isroot)
+ return DRM_ERR_NOT_ROOT;
+ mkdir(DRM_DIR_NAME, DRM_DEV_DIRMODE);
+ chown_check_return(DRM_DIR_NAME, 0, 0); /* root:root */
+ chmod(DRM_DIR_NAME, DRM_DEV_DIRMODE);
}
/* Check if the device node exists and create it if necessary. */
if (stat(buf, &st)) {
- if (!isroot)
- return DRM_ERR_NOT_ROOT;
- remove(buf);
- mknod(buf, S_IFCHR | devmode, dev);
+ if (!isroot)
+ return DRM_ERR_NOT_ROOT;
+ remove(buf);
+ mknod(buf, S_IFCHR | devmode, dev);
}
if (drm_server_info && drm_server_info->get_perms) {
- group = ((int)serv_group >= 0) ? serv_group : DRM_DEV_GID;
- chown_check_return(buf, user, group);
- chmod(buf, devmode);
+ group = ((int)serv_group >= 0) ? serv_group : DRM_DEV_GID;
+ chown_check_return(buf, user, group);
+ chmod(buf, devmode);
}
#else
/* if we modprobed then wait for udev */
{
- int udev_count = 0;
+ int udev_count = 0;
wait_for_udev:
if (stat(DRM_DIR_NAME, &st)) {
- usleep(20);
- udev_count++;
+ usleep(20);
+ udev_count++;
- if (udev_count == 50)
- return -1;
- goto wait_for_udev;
- }
+ if (udev_count == 50)
+ return -1;
+ goto wait_for_udev;
+ }
- if (stat(buf, &st)) {
- usleep(20);
- udev_count++;
+ if (stat(buf, &st)) {
+ usleep(20);
+ udev_count++;
- if (udev_count == 50)
- return -1;
- goto wait_for_udev;
- }
+ if (udev_count == 50)
+ return -1;
+ goto wait_for_udev;
+ }
}
#endif
- fd = open(buf, O_RDWR, 0);
+ fd = open(buf, O_RDWR | O_CLOEXEC, 0);
drmMsg("drmOpenDevice: open result is %d, (%s)\n",
- fd, fd < 0 ? strerror(errno) : "OK");
+ fd, fd < 0 ? strerror(errno) : "OK");
if (fd >= 0)
- return fd;
+ return fd;
-#if !defined(UDEV)
+#if !UDEV
/* Check if the device node is not what we expect it to be, and recreate it
* and try again if so.
*/
if (st.st_rdev != dev) {
- if (!isroot)
- return DRM_ERR_NOT_ROOT;
- remove(buf);
- mknod(buf, S_IFCHR | devmode, dev);
- if (drm_server_info && drm_server_info->get_perms) {
- chown_check_return(buf, user, group);
- chmod(buf, devmode);
- }
- }
- fd = open(buf, O_RDWR, 0);
+ if (!isroot)
+ return DRM_ERR_NOT_ROOT;
+ remove(buf);
+ mknod(buf, S_IFCHR | devmode, dev);
+ if (drm_server_info && drm_server_info->get_perms) {
+ chown_check_return(buf, user, group);
+ chmod(buf, devmode);
+ }
+ }
+ fd = open(buf, O_RDWR | O_CLOEXEC, 0);
drmMsg("drmOpenDevice: open result is %d, (%s)\n",
- fd, fd < 0 ? strerror(errno) : "OK");
+ fd, fd < 0 ? strerror(errno) : "OK");
if (fd >= 0)
- return fd;
+ return fd;
drmMsg("drmOpenDevice: Open failed\n");
remove(buf);
* \param create allow to create the device if set.
*
* \return a file descriptor on success, or a negative value on error.
- *
+ *
* \internal
* Calls drmOpenDevice() if \p create is set, otherwise assembles the device
* name from \p minor and opens it.
static int drmOpenMinor(int minor, int create, int type)
{
int fd;
- char buf[64];
- const char *dev_name;
-
+ char buf[DRM_NODE_NAME_MAX];
+ const char *dev_name = drmGetDeviceName(type);
+
if (create)
- return drmOpenDevice(makedev(DRM_MAJOR, minor), minor, type);
-
- switch (type) {
- case DRM_NODE_PRIMARY:
- dev_name = DRM_DEV_NAME;
- break;
- case DRM_NODE_CONTROL:
- dev_name = DRM_CONTROL_DEV_NAME;
- break;
- case DRM_NODE_RENDER:
- dev_name = DRM_RENDER_DEV_NAME;
- break;
- default:
- return -EINVAL;
- };
+ return drmOpenDevice(makedev(DRM_MAJOR, minor), minor, type);
+
+ if (!dev_name)
+ return -EINVAL;
sprintf(buf, dev_name, DRM_DIR_NAME, minor);
- if ((fd = open(buf, O_RDWR, 0)) >= 0)
- return fd;
+ if ((fd = open(buf, O_RDWR | O_CLOEXEC, 0)) >= 0)
+ return fd;
return -errno;
}
/**
* Determine whether the DRM kernel driver has been loaded.
- *
+ *
* \return 1 if the DRM driver is loaded, 0 otherwise.
*
- * \internal
+ * \internal
* Determine the presence of the kernel driver by attempting to open the 0
* minor and get version information. For backward compatibility with older
* Linux implementations, /proc/dri is also checked.
*/
-int drmAvailable(void)
+drm_public int drmAvailable(void)
{
drmVersionPtr version;
int retval = 0;
if ((fd = drmOpenMinor(0, 1, DRM_NODE_PRIMARY)) < 0) {
#ifdef __linux__
- /* Try proc for backward Linux compatibility */
- if (!access("/proc/dri/0", R_OK))
- return 1;
+ /* Try proc for backward Linux compatibility */
+ if (!access("/proc/dri/0", R_OK))
+ return 1;
#endif
- return 0;
+ return 0;
}
-
+
if ((version = drmGetVersion(fd))) {
- retval = 1;
- drmFreeVersion(version);
+ retval = 1;
+ drmFreeVersion(version);
}
close(fd);
};
}
-static int drmGetMinorType(int minor)
+static int drmGetMinorType(int major, int minor)
{
+#ifdef __FreeBSD__
+ char name[SPECNAMELEN];
+ int id;
+
+ if (!devname_r(makedev(major, minor), S_IFCHR, name, sizeof(name)))
+ return -1;
+
+ if (sscanf(name, "drm/%d", &id) != 1) {
+ // If not in /dev/drm/ we have the type in the name
+ if (sscanf(name, "dri/card%d\n", &id) >= 1)
+ return DRM_NODE_PRIMARY;
+ else if (sscanf(name, "dri/control%d\n", &id) >= 1)
+ return DRM_NODE_CONTROL;
+ else if (sscanf(name, "dri/renderD%d\n", &id) >= 1)
+ return DRM_NODE_RENDER;
+ return -1;
+ }
+
+ minor = id;
+#endif
int type = minor >> 6;
if (minor < 0)
drmMsg("drmOpenByBusid: Searching for BusID %s\n", busid);
for (i = base; i < base + DRM_MAX_MINOR; i++) {
- fd = drmOpenMinor(i, 1, type);
- drmMsg("drmOpenByBusid: drmOpenMinor returns %d\n", fd);
- if (fd >= 0) {
- /* We need to try for 1.4 first for proper PCI domain support
- * and if that fails, we know the kernel is busted
- */
- sv.drm_di_major = 1;
- sv.drm_di_minor = 4;
- sv.drm_dd_major = -1; /* Don't care */
- sv.drm_dd_minor = -1; /* Don't care */
- if (drmSetInterfaceVersion(fd, &sv)) {
+ fd = drmOpenMinor(i, 1, type);
+ drmMsg("drmOpenByBusid: drmOpenMinor returns %d\n", fd);
+ if (fd >= 0) {
+ /* We need to try for 1.4 first for proper PCI domain support
+ * and if that fails, we know the kernel is busted
+ */
+ sv.drm_di_major = 1;
+ sv.drm_di_minor = 4;
+ sv.drm_dd_major = -1; /* Don't care */
+ sv.drm_dd_minor = -1; /* Don't care */
+ if (drmSetInterfaceVersion(fd, &sv)) {
#ifndef __alpha__
- pci_domain_ok = 0;
+ pci_domain_ok = 0;
#endif
- sv.drm_di_major = 1;
- sv.drm_di_minor = 1;
- sv.drm_dd_major = -1; /* Don't care */
- sv.drm_dd_minor = -1; /* Don't care */
- drmMsg("drmOpenByBusid: Interface 1.4 failed, trying 1.1\n");
- drmSetInterfaceVersion(fd, &sv);
- }
- buf = drmGetBusid(fd);
- drmMsg("drmOpenByBusid: drmGetBusid reports %s\n", buf);
- if (buf && drmMatchBusID(buf, busid, pci_domain_ok)) {
- drmFreeBusid(buf);
- return fd;
- }
- if (buf)
- drmFreeBusid(buf);
- close(fd);
- }
+ sv.drm_di_major = 1;
+ sv.drm_di_minor = 1;
+ sv.drm_dd_major = -1; /* Don't care */
+ sv.drm_dd_minor = -1; /* Don't care */
+ drmMsg("drmOpenByBusid: Interface 1.4 failed, trying 1.1\n");
+ drmSetInterfaceVersion(fd, &sv);
+ }
+ buf = drmGetBusid(fd);
+ drmMsg("drmOpenByBusid: drmGetBusid reports %s\n", buf);
+ if (buf && drmMatchBusID(buf, busid, pci_domain_ok)) {
+ drmFreeBusid(buf);
+ return fd;
+ }
+ if (buf)
+ drmFreeBusid(buf);
+ close(fd);
+ }
}
return -1;
}
*
* \param name driver name.
* \param type the device node type.
- *
+ *
* \return a file descriptor on success, or a negative value on error.
- *
+ *
* \internal
* This function opens the first minor number that matches the driver name and
* isn't already in use. If it's in use it then it will already have a bus ID
* assigned.
- *
+ *
* \sa drmOpenMinor(), drmGetVersion() and drmGetBusid().
*/
static int drmOpenByName(const char *name, int type)
* already in use. If it's in use it will have a busid assigned already.
*/
for (i = base; i < base + DRM_MAX_MINOR; i++) {
- if ((fd = drmOpenMinor(i, 1, type)) >= 0) {
- if ((version = drmGetVersion(fd))) {
- if (!strcmp(version->name, name)) {
- drmFreeVersion(version);
- id = drmGetBusid(fd);
- drmMsg("drmGetBusid returned '%s'\n", id ? id : "NULL");
- if (!id || !*id) {
- if (id)
- drmFreeBusid(id);
- return fd;
- } else {
- drmFreeBusid(id);
- }
- } else {
- drmFreeVersion(version);
- }
- }
- close(fd);
- }
+ if ((fd = drmOpenMinor(i, 1, type)) >= 0) {
+ if ((version = drmGetVersion(fd))) {
+ if (!strcmp(version->name, name)) {
+ drmFreeVersion(version);
+ id = drmGetBusid(fd);
+ drmMsg("drmGetBusid returned '%s'\n", id ? id : "NULL");
+ if (!id || !*id) {
+ if (id)
+ drmFreeBusid(id);
+ return fd;
+ } else {
+ drmFreeBusid(id);
+ }
+ } else {
+ drmFreeVersion(version);
+ }
+ }
+ close(fd);
+ }
}
#ifdef __linux__
/* Backward-compatibility /proc support */
for (i = 0; i < 8; i++) {
- char proc_name[64], buf[512];
- char *driver, *pt, *devstring;
- int retcode;
-
- sprintf(proc_name, "/proc/dri/%d/name", i);
- if ((fd = open(proc_name, 0, 0)) >= 0) {
- retcode = read(fd, buf, sizeof(buf)-1);
- close(fd);
- if (retcode) {
- buf[retcode-1] = '\0';
- for (driver = pt = buf; *pt && *pt != ' '; ++pt)
- ;
- if (*pt) { /* Device is next */
- *pt = '\0';
- if (!strcmp(driver, name)) { /* Match */
- for (devstring = ++pt; *pt && *pt != ' '; ++pt)
- ;
- if (*pt) { /* Found busid */
- return drmOpenByBusid(++pt, type);
- } else { /* No busid */
- return drmOpenDevice(strtol(devstring, NULL, 0),i, type);
- }
- }
- }
- }
- }
+ char proc_name[64], buf[512];
+ char *driver, *pt, *devstring;
+ int retcode;
+
+ sprintf(proc_name, "/proc/dri/%d/name", i);
+ if ((fd = open(proc_name, O_RDONLY, 0)) >= 0) {
+ retcode = read(fd, buf, sizeof(buf)-1);
+ close(fd);
+ if (retcode) {
+ buf[retcode-1] = '\0';
+ for (driver = pt = buf; *pt && *pt != ' '; ++pt)
+ ;
+ if (*pt) { /* Device is next */
+ *pt = '\0';
+ if (!strcmp(driver, name)) { /* Match */
+ for (devstring = ++pt; *pt && *pt != ' '; ++pt)
+ ;
+ if (*pt) { /* Found busid */
+ return drmOpenByBusid(++pt, type);
+ } else { /* No busid */
+ return drmOpenDevice(strtol(devstring, NULL, 0),i, type);
+ }
+ }
+ }
+ }
+ }
}
#endif
*
* \param name driver name. Not referenced if bus ID is supplied.
* \param busid bus ID. Zero if not known.
- *
+ *
* \return a file descriptor on success, or a negative value on error.
- *
+ *
* \internal
* It calls drmOpenByBusid() if \p busid is specified or drmOpenByName()
* otherwise.
*/
-int drmOpen(const char *name, const char *busid)
+drm_public int drmOpen(const char *name, const char *busid)
{
return drmOpenWithType(name, busid, DRM_NODE_PRIMARY);
}
* It calls drmOpenByBusid() if \p busid is specified or drmOpenByName()
* otherwise.
*/
-int drmOpenWithType(const char *name, const char *busid, int type)
+drm_public int drmOpenWithType(const char *name, const char *busid, int type)
{
- if (!drmAvailable() && name != NULL && drm_server_info &&
- drm_server_info->load_module) {
- /* try to load the kernel module */
- if (!drm_server_info->load_module(name)) {
- drmMsg("[drm] failed to load kernel module \"%s\"\n", name);
- return -1;
- }
+ if (name != NULL && drm_server_info &&
+ drm_server_info->load_module && !drmAvailable()) {
+ /* try to load the kernel module */
+ if (!drm_server_info->load_module(name)) {
+ drmMsg("[drm] failed to load kernel module \"%s\"\n", name);
+ return -1;
+ }
}
if (busid) {
- int fd = drmOpenByBusid(busid, type);
- if (fd >= 0)
- return fd;
+ int fd = drmOpenByBusid(busid, type);
+ if (fd >= 0)
+ return fd;
}
-
+
if (name)
- return drmOpenByName(name, type);
+ return drmOpenByName(name, type);
return -1;
}
-int drmOpenControl(int minor)
+drm_public int drmOpenControl(int minor)
{
return drmOpenMinor(minor, 0, DRM_NODE_CONTROL);
}
-int drmOpenRender(int minor)
+drm_public int drmOpenRender(int minor)
{
return drmOpenMinor(minor, 0, DRM_NODE_RENDER);
}
* It frees the memory pointed by \p %v as well as all the non-null strings
* pointers in it.
*/
-void drmFreeVersion(drmVersionPtr v)
+drm_public void drmFreeVersion(drmVersionPtr v)
{
if (!v)
- return;
+ return;
drmFree(v->name);
drmFree(v->date);
drmFree(v->desc);
static void drmFreeKernelVersion(drm_version_t *v)
{
if (!v)
- return;
+ return;
drmFree(v->name);
drmFree(v->date);
drmFree(v->desc);
/**
* Copy version information.
- *
+ *
* \param d destination pointer.
* \param s source pointer.
- *
+ *
* \internal
* Used by drmGetVersion() to translate the information returned by the ioctl
* interface in a private structure into the public structure counterpart.
* Query the driver version information.
*
* \param fd file descriptor.
- *
+ *
* \return pointer to a drmVersion structure which should be freed with
* drmFreeVersion().
- *
+ *
* \note Similar information is available via /proc/dri.
- *
+ *
* \internal
* It gets the version information via successive DRM_IOCTL_VERSION ioctls,
* first with zeros to get the string lengths, and then the actually strings.
* It also null-terminates them since they might not be already.
*/
-drmVersionPtr drmGetVersion(int fd)
+drm_public drmVersionPtr drmGetVersion(int fd)
{
drmVersionPtr retval;
drm_version_t *version = drmMalloc(sizeof(*version));
- memclear(*version);
-
if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) {
- drmFreeKernelVersion(version);
- return NULL;
+ drmFreeKernelVersion(version);
+ return NULL;
}
if (version->name_len)
- version->name = drmMalloc(version->name_len + 1);
+ version->name = drmMalloc(version->name_len + 1);
if (version->date_len)
- version->date = drmMalloc(version->date_len + 1);
+ version->date = drmMalloc(version->date_len + 1);
if (version->desc_len)
- version->desc = drmMalloc(version->desc_len + 1);
+ version->desc = drmMalloc(version->desc_len + 1);
if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) {
- drmMsg("DRM_IOCTL_VERSION: %s\n", strerror(errno));
- drmFreeKernelVersion(version);
- return NULL;
+ drmMsg("DRM_IOCTL_VERSION: %s\n", strerror(errno));
+ drmFreeKernelVersion(version);
+ return NULL;
}
/* The results might not be null-terminated strings, so terminate them. */
/**
* Get version information for the DRM user space library.
- *
+ *
* This version number is driver independent.
- *
+ *
* \param fd file descriptor.
*
* \return version information.
- *
+ *
* \internal
* This function allocates and fills a drm_version structure with a hard coded
* version number.
*/
-drmVersionPtr drmGetLibVersion(int fd)
+drm_public drmVersionPtr drmGetLibVersion(int fd)
{
drm_version_t *version = drmMalloc(sizeof(*version));
return (drmVersionPtr)version;
}
-int drmGetCap(int fd, uint64_t capability, uint64_t *value)
+drm_public int drmGetCap(int fd, uint64_t capability, uint64_t *value)
{
- struct drm_get_cap cap;
- int ret;
+ struct drm_get_cap cap;
+ int ret;
- memclear(cap);
- cap.capability = capability;
+ memclear(cap);
+ cap.capability = capability;
- ret = drmIoctl(fd, DRM_IOCTL_GET_CAP, &cap);
- if (ret)
- return ret;
+ ret = drmIoctl(fd, DRM_IOCTL_GET_CAP, &cap);
+ if (ret)
+ return ret;
- *value = cap.value;
- return 0;
+ *value = cap.value;
+ return 0;
}
-int drmSetClientCap(int fd, uint64_t capability, uint64_t value)
+drm_public int drmSetClientCap(int fd, uint64_t capability, uint64_t value)
{
- struct drm_set_client_cap cap;
+ struct drm_set_client_cap cap;
- memclear(cap);
- cap.capability = capability;
- cap.value = value;
+ memclear(cap);
+ cap.capability = capability;
+ cap.value = value;
- return drmIoctl(fd, DRM_IOCTL_SET_CLIENT_CAP, &cap);
+ return drmIoctl(fd, DRM_IOCTL_SET_CLIENT_CAP, &cap);
}
/**
* \internal
* This function is just frees the memory pointed by \p busid.
*/
-void drmFreeBusid(const char *busid)
+drm_public void drmFreeBusid(const char *busid)
{
drmFree((void *)busid);
}
* get the string length and data, passing the arguments in a drm_unique
* structure.
*/
-char *drmGetBusid(int fd)
+drm_public char *drmGetBusid(int fd)
{
drm_unique_t u;
memclear(u);
if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u))
- return NULL;
+ return NULL;
u.unique = drmMalloc(u.unique_len + 1);
- if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u))
- return NULL;
+ if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) {
+ drmFree(u.unique);
+ return NULL;
+ }
u.unique[u.unique_len] = '\0';
return u.unique;
* This function is a wrapper around the DRM_IOCTL_SET_UNIQUE ioctl, passing
* the arguments in a drm_unique structure.
*/
-int drmSetBusid(int fd, const char *busid)
+drm_public int drmSetBusid(int fd, const char *busid)
{
drm_unique_t u;
u.unique_len = strlen(busid);
if (drmIoctl(fd, DRM_IOCTL_SET_UNIQUE, &u)) {
- return -errno;
+ return -errno;
}
return 0;
}
-int drmGetMagic(int fd, drm_magic_t * magic)
+drm_public int drmGetMagic(int fd, drm_magic_t * magic)
{
drm_auth_t auth;
*magic = 0;
if (drmIoctl(fd, DRM_IOCTL_GET_MAGIC, &auth))
- return -errno;
+ return -errno;
*magic = auth.magic;
return 0;
}
-int drmAuthMagic(int fd, drm_magic_t magic)
+drm_public int drmAuthMagic(int fd, drm_magic_t magic)
{
drm_auth_t auth;
memclear(auth);
auth.magic = magic;
if (drmIoctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth))
- return -errno;
+ return -errno;
return 0;
}
* \param flags combination of several flags to modify the function actions.
* \param handle will be set to a value that may be used as the offset
* parameter for mmap().
- *
+ *
* \return zero on success or a negative value on error.
*
* \par Mapping the frame buffer
*
* \par
* The area mapped will be uncached. If MTRR support is available in the
- * kernel, the frame buffer area will be set to write combining.
+ * kernel, the frame buffer area will be set to write combining.
*
* \par Mapping the MMIO register area
* For the MMIO register area,
* - \p size will be the size of the register area bytes, and
* - \p type will be DRM_REGISTERS.
* \par
- * The area mapped will be uncached.
- *
+ * The area mapped will be uncached.
+ *
* \par Mapping the SAREA
* For the SAREA,
* - \p offset will be ignored and should be set to zero,
* - \p size will be the desired size of the SAREA in bytes,
* - \p type will be DRM_SHM.
- *
+ *
* \par
* A shared memory area of the requested size will be created and locked in
* kernel memory. This area may be mapped into client-space by using the handle
- * returned.
- *
+ * returned.
+ *
* \note May only be called by root.
*
* \internal
* This function is a wrapper around the DRM_IOCTL_ADD_MAP ioctl, passing
* the arguments in a drm_map structure.
*/
-int drmAddMap(int fd, drm_handle_t offset, drmSize size, drmMapType type,
- drmMapFlags flags, drm_handle_t *handle)
+drm_public int drmAddMap(int fd, drm_handle_t offset, drmSize size, drmMapType type,
+ drmMapFlags flags, drm_handle_t *handle)
{
drm_map_t map;
map.type = type;
map.flags = flags;
if (drmIoctl(fd, DRM_IOCTL_ADD_MAP, &map))
- return -errno;
+ return -errno;
if (handle)
- *handle = (drm_handle_t)(uintptr_t)map.handle;
+ *handle = (drm_handle_t)(uintptr_t)map.handle;
return 0;
}
-int drmRmMap(int fd, drm_handle_t handle)
+drm_public int drmRmMap(int fd, drm_handle_t handle)
{
drm_map_t map;
map.handle = (void *)(uintptr_t)handle;
if(drmIoctl(fd, DRM_IOCTL_RM_MAP, &map))
- return -errno;
+ return -errno;
return 0;
}
/**
* Make buffers available for DMA transfers.
- *
+ *
* \param fd file descriptor.
* \param count number of buffers.
* \param size size of each buffer.
* \param flags buffer allocation flags.
- * \param agp_offset offset in the AGP aperture
+ * \param agp_offset offset in the AGP aperture
*
* \return number of buffers allocated, negative on error.
*
*
* \sa drm_buf_desc.
*/
-int drmAddBufs(int fd, int count, int size, drmBufDescFlags flags,
- int agp_offset)
+drm_public int drmAddBufs(int fd, int count, int size, drmBufDescFlags flags,
+ int agp_offset)
{
drm_buf_desc_t request;
request.agp_start = agp_offset;
if (drmIoctl(fd, DRM_IOCTL_ADD_BUFS, &request))
- return -errno;
+ return -errno;
return request.count;
}
-int drmMarkBufs(int fd, double low, double high)
+drm_public int drmMarkBufs(int fd, double low, double high)
{
drm_buf_info_t info;
int i;
memclear(info);
if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info))
- return -EINVAL;
+ return -EINVAL;
if (!info.count)
- return -EINVAL;
+ return -EINVAL;
if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
- return -ENOMEM;
+ return -ENOMEM;
if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) {
- int retval = -errno;
- drmFree(info.list);
- return retval;
+ int retval = -errno;
+ drmFree(info.list);
+ return retval;
}
for (i = 0; i < info.count; i++) {
- info.list[i].low_mark = low * info.list[i].count;
- info.list[i].high_mark = high * info.list[i].count;
- if (drmIoctl(fd, DRM_IOCTL_MARK_BUFS, &info.list[i])) {
- int retval = -errno;
- drmFree(info.list);
- return retval;
- }
+ info.list[i].low_mark = low * info.list[i].count;
+ info.list[i].high_mark = high * info.list[i].count;
+ if (drmIoctl(fd, DRM_IOCTL_MARK_BUFS, &info.list[i])) {
+ int retval = -errno;
+ drmFree(info.list);
+ return retval;
+ }
}
drmFree(info.list);
* \param list list of buffers to be freed.
*
* \return zero on success, or a negative value on failure.
- *
+ *
* \note This function is primarily used for debugging.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_FREE_BUFS ioctl, passing
* the arguments in a drm_buf_free structure.
*/
-int drmFreeBufs(int fd, int count, int *list)
+drm_public int drmFreeBufs(int fd, int count, int *list)
{
drm_buf_free_t request;
request.count = count;
request.list = list;
if (drmIoctl(fd, DRM_IOCTL_FREE_BUFS, &request))
- return -errno;
+ return -errno;
return 0;
}
* \internal
* This function closes the file descriptor.
*/
-int drmClose(int fd)
+drm_public int drmClose(int fd)
{
unsigned long key = drmGetKeyFromFd(fd);
drmHashEntry *entry = drmGetEntry(fd);
* begins.
*
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper for mmap().
*/
-int drmMap(int fd, drm_handle_t handle, drmSize size, drmAddressPtr address)
+drm_public int drmMap(int fd, drm_handle_t handle, drmSize size,
+ drmAddressPtr address)
{
static unsigned long pagesize_mask = 0;
if (fd < 0)
- return -EINVAL;
+ return -EINVAL;
if (!pagesize_mask)
- pagesize_mask = getpagesize() - 1;
+ pagesize_mask = getpagesize() - 1;
size = (size + pagesize_mask) & ~pagesize_mask;
*address = drm_mmap(0, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, handle);
if (*address == MAP_FAILED)
- return -errno;
+ return -errno;
return 0;
}
*
* \param address address as given by drmMap().
* \param size size in bytes. Must match the size used by drmMap().
- *
+ *
* \return zero on success, or a negative value on failure.
*
* \internal
* This function is a wrapper for munmap().
*/
-int drmUnmap(drmAddress address, drmSize size)
+drm_public int drmUnmap(drmAddress address, drmSize size)
{
return drm_munmap(address, size);
}
-drmBufInfoPtr drmGetBufInfo(int fd)
+drm_public drmBufInfoPtr drmGetBufInfo(int fd)
{
drm_buf_info_t info;
drmBufInfoPtr retval;
memclear(info);
if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info))
- return NULL;
+ return NULL;
if (info.count) {
- if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
- return NULL;
-
- if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) {
- drmFree(info.list);
- return NULL;
- }
-
- retval = drmMalloc(sizeof(*retval));
- retval->count = info.count;
- retval->list = drmMalloc(info.count * sizeof(*retval->list));
- for (i = 0; i < info.count; i++) {
- retval->list[i].count = info.list[i].count;
- retval->list[i].size = info.list[i].size;
- retval->list[i].low_mark = info.list[i].low_mark;
- retval->list[i].high_mark = info.list[i].high_mark;
- }
- drmFree(info.list);
- return retval;
+ if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
+ return NULL;
+
+ if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) {
+ drmFree(info.list);
+ return NULL;
+ }
+
+ retval = drmMalloc(sizeof(*retval));
+ retval->count = info.count;
+ retval->list = drmMalloc(info.count * sizeof(*retval->list));
+ for (i = 0; i < info.count; i++) {
+ retval->list[i].count = info.list[i].count;
+ retval->list[i].size = info.list[i].size;
+ retval->list[i].low_mark = info.list[i].low_mark;
+ retval->list[i].high_mark = info.list[i].high_mark;
+ }
+ drmFree(info.list);
+ return retval;
}
return NULL;
}
*
* \note The client may not use these buffers until obtaining buffer indices
* with drmDMA().
- *
+ *
* \internal
* This function calls the DRM_IOCTL_MAP_BUFS ioctl and copies the returned
* information about the buffers in a drm_buf_map structure into the
* client-visible data structures.
- */
-drmBufMapPtr drmMapBufs(int fd)
+ */
+drm_public drmBufMapPtr drmMapBufs(int fd)
{
drm_buf_map_t bufs;
drmBufMapPtr retval;
memclear(bufs);
if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs))
- return NULL;
+ return NULL;
if (!bufs.count)
- return NULL;
+ return NULL;
- if (!(bufs.list = drmMalloc(bufs.count * sizeof(*bufs.list))))
- return NULL;
+ if (!(bufs.list = drmMalloc(bufs.count * sizeof(*bufs.list))))
+ return NULL;
- if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) {
- drmFree(bufs.list);
- return NULL;
- }
+ if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) {
+ drmFree(bufs.list);
+ return NULL;
+ }
- retval = drmMalloc(sizeof(*retval));
- retval->count = bufs.count;
- retval->list = drmMalloc(bufs.count * sizeof(*retval->list));
- for (i = 0; i < bufs.count; i++) {
- retval->list[i].idx = bufs.list[i].idx;
- retval->list[i].total = bufs.list[i].total;
- retval->list[i].used = 0;
- retval->list[i].address = bufs.list[i].address;
- }
+ retval = drmMalloc(sizeof(*retval));
+ retval->count = bufs.count;
+ retval->list = drmMalloc(bufs.count * sizeof(*retval->list));
+ for (i = 0; i < bufs.count; i++) {
+ retval->list[i].idx = bufs.list[i].idx;
+ retval->list[i].total = bufs.list[i].total;
+ retval->list[i].used = 0;
+ retval->list[i].address = bufs.list[i].address;
+ }
- drmFree(bufs.list);
-
- return retval;
+ drmFree(bufs.list);
+ return retval;
}
* Calls munmap() for every buffer stored in \p bufs and frees the
* memory allocated by drmMapBufs().
*/
-int drmUnmapBufs(drmBufMapPtr bufs)
+drm_public int drmUnmapBufs(drmBufMapPtr bufs)
{
int i;
for (i = 0; i < bufs->count; i++) {
- drm_munmap(bufs->list[i].address, bufs->list[i].total);
+ drm_munmap(bufs->list[i].address, bufs->list[i].total);
}
drmFree(bufs->list);
drmFree(bufs);
-
return 0;
}
-#define DRM_DMA_RETRY 16
+#define DRM_DMA_RETRY 16
/**
* Reserve DMA buffers.
*
* \param fd file descriptor.
- * \param request
- *
+ * \param request
+ *
* \return zero on success, or a negative value on failure.
*
* \internal
* Assemble the arguments into a drm_dma structure and keeps issuing the
* DRM_IOCTL_DMA ioctl until success or until maximum number of retries.
*/
-int drmDMA(int fd, drmDMAReqPtr request)
+drm_public int drmDMA(int fd, drmDMAReqPtr request)
{
drm_dma_t dma;
int ret, i = 0;
dma.granted_count = 0;
do {
- ret = ioctl( fd, DRM_IOCTL_DMA, &dma );
+ ret = ioctl( fd, DRM_IOCTL_DMA, &dma );
} while ( ret && errno == EAGAIN && i++ < DRM_DMA_RETRY );
if ( ret == 0 ) {
- request->granted_count = dma.granted_count;
- return 0;
+ request->granted_count = dma.granted_count;
+ return 0;
} else {
- return -errno;
+ return -errno;
}
}
*
* \param fd file descriptor.
* \param context context.
- * \param flags flags that determine the sate of the hardware when the function
+ * \param flags flags that determine the state of the hardware when the function
* returns.
- *
+ *
* \return always zero.
- *
+ *
* \internal
* This function translates the arguments into a drm_lock structure and issue
* the DRM_IOCTL_LOCK ioctl until the lock is successfully acquired.
*/
-int drmGetLock(int fd, drm_context_t context, drmLockFlags flags)
+drm_public int drmGetLock(int fd, drm_context_t context, drmLockFlags flags)
{
drm_lock_t lock;
if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES;
while (drmIoctl(fd, DRM_IOCTL_LOCK, &lock))
- ;
+ ;
return 0;
}
*
* \param fd file descriptor.
* \param context context.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_UNLOCK ioctl, passing the
* argument in a drm_lock structure.
*/
-int drmUnlock(int fd, drm_context_t context)
+drm_public int drmUnlock(int fd, drm_context_t context)
{
drm_lock_t lock;
return drmIoctl(fd, DRM_IOCTL_UNLOCK, &lock);
}
-drm_context_t *drmGetReservedContextList(int fd, int *count)
+drm_public drm_context_t *drmGetReservedContextList(int fd, int *count)
{
drm_ctx_res_t res;
drm_ctx_t *list;
memclear(res);
if (drmIoctl(fd, DRM_IOCTL_RES_CTX, &res))
- return NULL;
+ return NULL;
if (!res.count)
- return NULL;
+ return NULL;
if (!(list = drmMalloc(res.count * sizeof(*list))))
- return NULL;
- if (!(retval = drmMalloc(res.count * sizeof(*retval)))) {
- drmFree(list);
- return NULL;
- }
+ return NULL;
+ if (!(retval = drmMalloc(res.count * sizeof(*retval))))
+ goto err_free_list;
res.contexts = list;
if (drmIoctl(fd, DRM_IOCTL_RES_CTX, &res))
- return NULL;
+ goto err_free_context;
for (i = 0; i < res.count; i++)
- retval[i] = list[i].handle;
+ retval[i] = list[i].handle;
drmFree(list);
*count = res.count;
return retval;
+
+err_free_list:
+ drmFree(list);
+err_free_context:
+ drmFree(retval);
+ return NULL;
}
-void drmFreeReservedContextList(drm_context_t *pt)
+drm_public void drmFreeReservedContextList(drm_context_t *pt)
{
drmFree(pt);
}
* \param fd file descriptor.
* \param handle is set on success. To be used by the client when requesting DMA
* dispatch with drmDMA().
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \note May only be called by root.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_ADD_CTX ioctl, passing the
* argument in a drm_ctx structure.
*/
-int drmCreateContext(int fd, drm_context_t *handle)
+drm_public int drmCreateContext(int fd, drm_context_t *handle)
{
drm_ctx_t ctx;
memclear(ctx);
if (drmIoctl(fd, DRM_IOCTL_ADD_CTX, &ctx))
- return -errno;
+ return -errno;
*handle = ctx.handle;
return 0;
}
-int drmSwitchToContext(int fd, drm_context_t context)
+drm_public int drmSwitchToContext(int fd, drm_context_t context)
{
drm_ctx_t ctx;
memclear(ctx);
ctx.handle = context;
if (drmIoctl(fd, DRM_IOCTL_SWITCH_CTX, &ctx))
- return -errno;
+ return -errno;
return 0;
}
-int drmSetContextFlags(int fd, drm_context_t context, drm_context_tFlags flags)
+drm_public int drmSetContextFlags(int fd, drm_context_t context,
+ drm_context_tFlags flags)
{
drm_ctx_t ctx;
memclear(ctx);
ctx.handle = context;
if (flags & DRM_CONTEXT_PRESERVED)
- ctx.flags |= _DRM_CONTEXT_PRESERVED;
+ ctx.flags |= _DRM_CONTEXT_PRESERVED;
if (flags & DRM_CONTEXT_2DONLY)
- ctx.flags |= _DRM_CONTEXT_2DONLY;
+ ctx.flags |= _DRM_CONTEXT_2DONLY;
if (drmIoctl(fd, DRM_IOCTL_MOD_CTX, &ctx))
- return -errno;
+ return -errno;
return 0;
}
-int drmGetContextFlags(int fd, drm_context_t context,
- drm_context_tFlagsPtr flags)
+drm_public int drmGetContextFlags(int fd, drm_context_t context,
+ drm_context_tFlagsPtr flags)
{
drm_ctx_t ctx;
memclear(ctx);
ctx.handle = context;
if (drmIoctl(fd, DRM_IOCTL_GET_CTX, &ctx))
- return -errno;
+ return -errno;
*flags = 0;
if (ctx.flags & _DRM_CONTEXT_PRESERVED)
- *flags |= DRM_CONTEXT_PRESERVED;
+ *flags |= DRM_CONTEXT_PRESERVED;
if (ctx.flags & _DRM_CONTEXT_2DONLY)
- *flags |= DRM_CONTEXT_2DONLY;
+ *flags |= DRM_CONTEXT_2DONLY;
return 0;
}
*
* Free any kernel-level resources allocated with drmCreateContext() associated
* with the context.
- *
+ *
* \param fd file descriptor.
* \param handle handle given by drmCreateContext().
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \note May only be called by root.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_RM_CTX ioctl, passing the
* argument in a drm_ctx structure.
*/
-int drmDestroyContext(int fd, drm_context_t handle)
+drm_public int drmDestroyContext(int fd, drm_context_t handle)
{
drm_ctx_t ctx;
memclear(ctx);
ctx.handle = handle;
if (drmIoctl(fd, DRM_IOCTL_RM_CTX, &ctx))
- return -errno;
+ return -errno;
return 0;
}
-int drmCreateDrawable(int fd, drm_drawable_t *handle)
+drm_public int drmCreateDrawable(int fd, drm_drawable_t *handle)
{
drm_draw_t draw;
memclear(draw);
if (drmIoctl(fd, DRM_IOCTL_ADD_DRAW, &draw))
- return -errno;
+ return -errno;
*handle = draw.handle;
return 0;
}
-int drmDestroyDrawable(int fd, drm_drawable_t handle)
+drm_public int drmDestroyDrawable(int fd, drm_drawable_t handle)
{
drm_draw_t draw;
memclear(draw);
draw.handle = handle;
if (drmIoctl(fd, DRM_IOCTL_RM_DRAW, &draw))
- return -errno;
+ return -errno;
return 0;
}
-int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
- drm_drawable_info_type_t type, unsigned int num,
- void *data)
+drm_public int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
+ drm_drawable_info_type_t type,
+ unsigned int num, void *data)
{
drm_update_draw_t update;
update.data = (unsigned long long)(unsigned long)data;
if (drmIoctl(fd, DRM_IOCTL_UPDATE_DRAW, &update))
- return -errno;
+ return -errno;
+
+ return 0;
+}
+drm_public int drmCrtcGetSequence(int fd, uint32_t crtcId, uint64_t *sequence,
+ uint64_t *ns)
+{
+ struct drm_crtc_get_sequence get_seq;
+ int ret;
+
+ memclear(get_seq);
+ get_seq.crtc_id = crtcId;
+ ret = drmIoctl(fd, DRM_IOCTL_CRTC_GET_SEQUENCE, &get_seq);
+ if (ret)
+ return ret;
+
+ if (sequence)
+ *sequence = get_seq.sequence;
+ if (ns)
+ *ns = get_seq.sequence_ns;
return 0;
}
+drm_public int drmCrtcQueueSequence(int fd, uint32_t crtcId, uint32_t flags,
+ uint64_t sequence,
+ uint64_t *sequence_queued,
+ uint64_t user_data)
+{
+ struct drm_crtc_queue_sequence queue_seq;
+ int ret;
+
+ memclear(queue_seq);
+ queue_seq.crtc_id = crtcId;
+ queue_seq.flags = flags;
+ queue_seq.sequence = sequence;
+ queue_seq.user_data = user_data;
+
+ ret = drmIoctl(fd, DRM_IOCTL_CRTC_QUEUE_SEQUENCE, &queue_seq);
+ if (ret == 0 && sequence_queued)
+ *sequence_queued = queue_seq.sequence;
+
+ return ret;
+}
+
/**
* Acquire the AGP device.
*
* Must be called before any of the other AGP related calls.
*
* \param fd file descriptor.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_ACQUIRE ioctl.
*/
-int drmAgpAcquire(int fd)
+drm_public int drmAgpAcquire(int fd)
{
if (drmIoctl(fd, DRM_IOCTL_AGP_ACQUIRE, NULL))
- return -errno;
+ return -errno;
return 0;
}
* Release the AGP device.
*
* \param fd file descriptor.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_RELEASE ioctl.
*/
-int drmAgpRelease(int fd)
+drm_public int drmAgpRelease(int fd)
{
if (drmIoctl(fd, DRM_IOCTL_AGP_RELEASE, NULL))
- return -errno;
+ return -errno;
return 0;
}
*
* \param fd file descriptor.
* \param mode AGP mode.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_ENABLE ioctl, passing the
* argument in a drm_agp_mode structure.
*/
-int drmAgpEnable(int fd, unsigned long mode)
+drm_public int drmAgpEnable(int fd, unsigned long mode)
{
drm_agp_mode_t m;
memclear(m);
m.mode = mode;
if (drmIoctl(fd, DRM_IOCTL_AGP_ENABLE, &m))
- return -errno;
+ return -errno;
return 0;
}
* \param address if not zero, will be set to the physical address of the
* allocated memory.
* \param handle on success will be set to a handle of the allocated memory.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_ALLOC ioctl, passing the
* arguments in a drm_agp_buffer structure.
*/
-int drmAgpAlloc(int fd, unsigned long size, unsigned long type,
- unsigned long *address, drm_handle_t *handle)
+drm_public int drmAgpAlloc(int fd, unsigned long size, unsigned long type,
+ unsigned long *address, drm_handle_t *handle)
{
drm_agp_buffer_t b;
b.size = size;
b.type = type;
if (drmIoctl(fd, DRM_IOCTL_AGP_ALLOC, &b))
- return -errno;
+ return -errno;
if (address != 0UL)
- *address = b.physical;
+ *address = b.physical;
*handle = b.handle;
return 0;
}
*
* \param fd file descriptor.
* \param handle handle to the allocated memory, as given by drmAgpAllocate().
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_FREE ioctl, passing the
* argument in a drm_agp_buffer structure.
*/
-int drmAgpFree(int fd, drm_handle_t handle)
+drm_public int drmAgpFree(int fd, drm_handle_t handle)
{
drm_agp_buffer_t b;
memclear(b);
b.handle = handle;
if (drmIoctl(fd, DRM_IOCTL_AGP_FREE, &b))
- return -errno;
+ return -errno;
return 0;
}
* \param fd file descriptor.
* \param handle handle to the allocated memory, as given by drmAgpAllocate().
* \param offset offset in bytes. It will round to page boundary.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_BIND ioctl, passing the
* argument in a drm_agp_binding structure.
*/
-int drmAgpBind(int fd, drm_handle_t handle, unsigned long offset)
+drm_public int drmAgpBind(int fd, drm_handle_t handle, unsigned long offset)
{
drm_agp_binding_t b;
b.handle = handle;
b.offset = offset;
if (drmIoctl(fd, DRM_IOCTL_AGP_BIND, &b))
- return -errno;
+ return -errno;
return 0;
}
*
* \param fd file descriptor.
* \param handle handle to the allocated memory, as given by drmAgpAllocate().
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_UNBIND ioctl, passing
* the argument in a drm_agp_binding structure.
*/
-int drmAgpUnbind(int fd, drm_handle_t handle)
+drm_public int drmAgpUnbind(int fd, drm_handle_t handle)
{
drm_agp_binding_t b;
memclear(b);
b.handle = handle;
if (drmIoctl(fd, DRM_IOCTL_AGP_UNBIND, &b))
- return -errno;
+ return -errno;
return 0;
}
* Get AGP driver major version number.
*
* \param fd file descriptor.
- *
+ *
* \return major version number on success, or a negative value on failure..
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-int drmAgpVersionMajor(int fd)
+drm_public int drmAgpVersionMajor(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return -errno;
+ return -errno;
return i.agp_version_major;
}
* Get AGP driver minor version number.
*
* \param fd file descriptor.
- *
+ *
* \return minor version number on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-int drmAgpVersionMinor(int fd)
+drm_public int drmAgpVersionMinor(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return -errno;
+ return -errno;
return i.agp_version_minor;
}
* Get AGP mode.
*
* \param fd file descriptor.
- *
+ *
* \return mode on success, or zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned long drmAgpGetMode(int fd)
+drm_public unsigned long drmAgpGetMode(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.mode;
}
* Get AGP aperture base.
*
* \param fd file descriptor.
- *
+ *
* \return aperture base on success, zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned long drmAgpBase(int fd)
+drm_public unsigned long drmAgpBase(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.aperture_base;
}
* Get AGP aperture size.
*
* \param fd file descriptor.
- *
+ *
* \return aperture size on success, zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned long drmAgpSize(int fd)
+drm_public unsigned long drmAgpSize(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.aperture_size;
}
* Get used AGP memory.
*
* \param fd file descriptor.
- *
+ *
* \return memory used on success, or zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned long drmAgpMemoryUsed(int fd)
+drm_public unsigned long drmAgpMemoryUsed(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.memory_used;
}
* Get available AGP memory.
*
* \param fd file descriptor.
- *
+ *
* \return memory available on success, or zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned long drmAgpMemoryAvail(int fd)
+drm_public unsigned long drmAgpMemoryAvail(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.memory_allowed;
}
* Get hardware vendor ID.
*
* \param fd file descriptor.
- *
+ *
* \return vendor ID on success, or zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned int drmAgpVendorId(int fd)
+drm_public unsigned int drmAgpVendorId(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.id_vendor;
}
* Get hardware device ID.
*
* \param fd file descriptor.
- *
+ *
* \return zero on success, or zero on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the
* necessary information in a drm_agp_info structure.
*/
-unsigned int drmAgpDeviceId(int fd)
+drm_public unsigned int drmAgpDeviceId(int fd)
{
drm_agp_info_t i;
memclear(i);
if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i))
- return 0;
+ return 0;
return i.id_device;
}
-int drmScatterGatherAlloc(int fd, unsigned long size, drm_handle_t *handle)
+drm_public int drmScatterGatherAlloc(int fd, unsigned long size,
+ drm_handle_t *handle)
{
drm_scatter_gather_t sg;
*handle = 0;
sg.size = size;
if (drmIoctl(fd, DRM_IOCTL_SG_ALLOC, &sg))
- return -errno;
+ return -errno;
*handle = sg.handle;
return 0;
}
-int drmScatterGatherFree(int fd, drm_handle_t handle)
+drm_public int drmScatterGatherFree(int fd, drm_handle_t handle)
{
drm_scatter_gather_t sg;
memclear(sg);
sg.handle = handle;
if (drmIoctl(fd, DRM_IOCTL_SG_FREE, &sg))
- return -errno;
+ return -errno;
return 0;
}
*
* \param fd file descriptor.
* \param vbl pointer to a drmVBlank structure.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_WAIT_VBLANK ioctl.
*/
-int drmWaitVBlank(int fd, drmVBlankPtr vbl)
+drm_public int drmWaitVBlank(int fd, drmVBlankPtr vbl)
{
struct timespec timeout, cur;
int ret;
ret = clock_gettime(CLOCK_MONOTONIC, &timeout);
if (ret < 0) {
- fprintf(stderr, "clock_gettime failed: %s\n", strerror(errno));
- goto out;
+ fprintf(stderr, "clock_gettime failed: %s\n", strerror(errno));
+ goto out;
}
timeout.tv_sec++;
ret = ioctl(fd, DRM_IOCTL_WAIT_VBLANK, vbl);
vbl->request.type &= ~DRM_VBLANK_RELATIVE;
if (ret && errno == EINTR) {
- clock_gettime(CLOCK_MONOTONIC, &cur);
- /* Timeout after 1s */
- if (cur.tv_sec > timeout.tv_sec + 1 ||
- (cur.tv_sec == timeout.tv_sec && cur.tv_nsec >=
- timeout.tv_nsec)) {
- errno = EBUSY;
- ret = -1;
- break;
- }
+ clock_gettime(CLOCK_MONOTONIC, &cur);
+ /* Timeout after 1s */
+ if (cur.tv_sec > timeout.tv_sec + 1 ||
+ (cur.tv_sec == timeout.tv_sec && cur.tv_nsec >=
+ timeout.tv_nsec)) {
+ errno = EBUSY;
+ ret = -1;
+ break;
+ }
}
} while (ret && errno == EINTR);
return ret;
}
-int drmError(int err, const char *label)
+drm_public int drmError(int err, const char *label)
{
switch (err) {
case DRM_ERR_NO_DEVICE:
- fprintf(stderr, "%s: no device\n", label);
- break;
+ fprintf(stderr, "%s: no device\n", label);
+ break;
case DRM_ERR_NO_ACCESS:
- fprintf(stderr, "%s: no access\n", label);
- break;
+ fprintf(stderr, "%s: no access\n", label);
+ break;
case DRM_ERR_NOT_ROOT:
- fprintf(stderr, "%s: not root\n", label);
- break;
+ fprintf(stderr, "%s: not root\n", label);
+ break;
case DRM_ERR_INVALID:
- fprintf(stderr, "%s: invalid args\n", label);
- break;
+ fprintf(stderr, "%s: invalid args\n", label);
+ break;
default:
- if (err < 0)
- err = -err;
- fprintf( stderr, "%s: error %d (%s)\n", label, err, strerror(err) );
- break;
+ if (err < 0)
+ err = -err;
+ fprintf( stderr, "%s: error %d (%s)\n", label, err, strerror(err) );
+ break;
}
return 1;
*
* \param fd file descriptor.
* \param irq IRQ number.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_CONTROL ioctl, passing the
* argument in a drm_control structure.
*/
-int drmCtlInstHandler(int fd, int irq)
+drm_public int drmCtlInstHandler(int fd, int irq)
{
drm_control_t ctl;
ctl.func = DRM_INST_HANDLER;
ctl.irq = irq;
if (drmIoctl(fd, DRM_IOCTL_CONTROL, &ctl))
- return -errno;
+ return -errno;
return 0;
}
* Uninstall IRQ handler.
*
* \param fd file descriptor.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_CONTROL ioctl, passing the
* argument in a drm_control structure.
*/
-int drmCtlUninstHandler(int fd)
+drm_public int drmCtlUninstHandler(int fd)
{
drm_control_t ctl;
ctl.func = DRM_UNINST_HANDLER;
ctl.irq = 0;
if (drmIoctl(fd, DRM_IOCTL_CONTROL, &ctl))
- return -errno;
+ return -errno;
return 0;
}
-int drmFinish(int fd, int context, drmLockFlags flags)
+drm_public int drmFinish(int fd, int context, drmLockFlags flags)
{
drm_lock_t lock;
if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES;
if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES;
if (drmIoctl(fd, DRM_IOCTL_FINISH, &lock))
- return -errno;
+ return -errno;
return 0;
}
* \param busnum bus number.
* \param devnum device number.
* \param funcnum function number.
- *
+ *
* \return IRQ number on success, or a negative value on failure.
- *
+ *
* \internal
* This function is a wrapper around the DRM_IOCTL_IRQ_BUSID ioctl, passing the
* arguments in a drm_irq_busid structure.
*/
-int drmGetInterruptFromBusID(int fd, int busnum, int devnum, int funcnum)
+drm_public int drmGetInterruptFromBusID(int fd, int busnum, int devnum,
+ int funcnum)
{
drm_irq_busid_t p;
p.devnum = devnum;
p.funcnum = funcnum;
if (drmIoctl(fd, DRM_IOCTL_IRQ_BUSID, &p))
- return -errno;
+ return -errno;
return p.irq;
}
-int drmAddContextTag(int fd, drm_context_t context, void *tag)
+drm_public int drmAddContextTag(int fd, drm_context_t context, void *tag)
{
drmHashEntry *entry = drmGetEntry(fd);
if (drmHashInsert(entry->tagTable, context, tag)) {
- drmHashDelete(entry->tagTable, context);
- drmHashInsert(entry->tagTable, context, tag);
+ drmHashDelete(entry->tagTable, context);
+ drmHashInsert(entry->tagTable, context, tag);
}
return 0;
}
-int drmDelContextTag(int fd, drm_context_t context)
+drm_public int drmDelContextTag(int fd, drm_context_t context)
{
drmHashEntry *entry = drmGetEntry(fd);
return drmHashDelete(entry->tagTable, context);
}
-void *drmGetContextTag(int fd, drm_context_t context)
+drm_public void *drmGetContextTag(int fd, drm_context_t context)
{
drmHashEntry *entry = drmGetEntry(fd);
void *value;
if (drmHashLookup(entry->tagTable, context, &value))
- return NULL;
+ return NULL;
return value;
}
-int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id,
- drm_handle_t handle)
+drm_public int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id,
+ drm_handle_t handle)
{
drm_ctx_priv_map_t map;
map.handle = (void *)(uintptr_t)handle;
if (drmIoctl(fd, DRM_IOCTL_SET_SAREA_CTX, &map))
- return -errno;
+ return -errno;
return 0;
}
-int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id,
- drm_handle_t *handle)
+drm_public int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id,
+ drm_handle_t *handle)
{
drm_ctx_priv_map_t map;
map.ctx_id = ctx_id;
if (drmIoctl(fd, DRM_IOCTL_GET_SAREA_CTX, &map))
- return -errno;
+ return -errno;
if (handle)
- *handle = (drm_handle_t)(uintptr_t)map.handle;
+ *handle = (drm_handle_t)(uintptr_t)map.handle;
return 0;
}
-int drmGetMap(int fd, int idx, drm_handle_t *offset, drmSize *size,
- drmMapType *type, drmMapFlags *flags, drm_handle_t *handle,
- int *mtrr)
+drm_public int drmGetMap(int fd, int idx, drm_handle_t *offset, drmSize *size,
+ drmMapType *type, drmMapFlags *flags,
+ drm_handle_t *handle, int *mtrr)
{
drm_map_t map;
memclear(map);
map.offset = idx;
if (drmIoctl(fd, DRM_IOCTL_GET_MAP, &map))
- return -errno;
+ return -errno;
*offset = map.offset;
*size = map.size;
*type = map.type;
return 0;
}
-int drmGetClient(int fd, int idx, int *auth, int *pid, int *uid,
- unsigned long *magic, unsigned long *iocs)
+drm_public int drmGetClient(int fd, int idx, int *auth, int *pid, int *uid,
+ unsigned long *magic, unsigned long *iocs)
{
drm_client_t client;
memclear(client);
client.idx = idx;
if (drmIoctl(fd, DRM_IOCTL_GET_CLIENT, &client))
- return -errno;
+ return -errno;
*auth = client.auth;
*pid = client.pid;
*uid = client.uid;
return 0;
}
-int drmGetStats(int fd, drmStatsT *stats)
+drm_public int drmGetStats(int fd, drmStatsT *stats)
{
drm_stats_t s;
unsigned i;
memclear(s);
if (drmIoctl(fd, DRM_IOCTL_GET_STATS, &s))
- return -errno;
+ return -errno;
stats->count = 0;
memset(stats, 0, sizeof(*stats));
if (s.count > sizeof(stats->data)/sizeof(stats->data[0]))
- return -1;
+ return -1;
#define SET_VALUE \
stats->data[i].long_format = "%-20.20s"; \
stats->count = s.count;
for (i = 0; i < s.count; i++) {
- stats->data[i].value = s.data[i].value;
- switch (s.data[i].type) {
- case _DRM_STAT_LOCK:
- stats->data[i].long_name = "Lock";
- stats->data[i].rate_name = "Lock";
- SET_VALUE;
- break;
- case _DRM_STAT_OPENS:
- stats->data[i].long_name = "Opens";
- stats->data[i].rate_name = "O";
- SET_COUNT;
- stats->data[i].verbose = 1;
- break;
- case _DRM_STAT_CLOSES:
- stats->data[i].long_name = "Closes";
- stats->data[i].rate_name = "Lock";
- SET_COUNT;
- stats->data[i].verbose = 1;
- break;
- case _DRM_STAT_IOCTLS:
- stats->data[i].long_name = "Ioctls";
- stats->data[i].rate_name = "Ioc/s";
- SET_COUNT;
- break;
- case _DRM_STAT_LOCKS:
- stats->data[i].long_name = "Locks";
- stats->data[i].rate_name = "Lck/s";
- SET_COUNT;
- break;
- case _DRM_STAT_UNLOCKS:
- stats->data[i].long_name = "Unlocks";
- stats->data[i].rate_name = "Unl/s";
- SET_COUNT;
- break;
- case _DRM_STAT_IRQ:
- stats->data[i].long_name = "IRQs";
- stats->data[i].rate_name = "IRQ/s";
- SET_COUNT;
- break;
- case _DRM_STAT_PRIMARY:
- stats->data[i].long_name = "Primary Bytes";
- stats->data[i].rate_name = "PB/s";
- SET_BYTE;
- break;
- case _DRM_STAT_SECONDARY:
- stats->data[i].long_name = "Secondary Bytes";
- stats->data[i].rate_name = "SB/s";
- SET_BYTE;
- break;
- case _DRM_STAT_DMA:
- stats->data[i].long_name = "DMA";
- stats->data[i].rate_name = "DMA/s";
- SET_COUNT;
- break;
- case _DRM_STAT_SPECIAL:
- stats->data[i].long_name = "Special DMA";
- stats->data[i].rate_name = "dma/s";
- SET_COUNT;
- break;
- case _DRM_STAT_MISSED:
- stats->data[i].long_name = "Miss";
- stats->data[i].rate_name = "Ms/s";
- SET_COUNT;
- break;
- case _DRM_STAT_VALUE:
- stats->data[i].long_name = "Value";
- stats->data[i].rate_name = "Value";
- SET_VALUE;
- break;
- case _DRM_STAT_BYTE:
- stats->data[i].long_name = "Bytes";
- stats->data[i].rate_name = "B/s";
- SET_BYTE;
- break;
- case _DRM_STAT_COUNT:
- default:
- stats->data[i].long_name = "Count";
- stats->data[i].rate_name = "Cnt/s";
- SET_COUNT;
- break;
- }
+ stats->data[i].value = s.data[i].value;
+ switch (s.data[i].type) {
+ case _DRM_STAT_LOCK:
+ stats->data[i].long_name = "Lock";
+ stats->data[i].rate_name = "Lock";
+ SET_VALUE;
+ break;
+ case _DRM_STAT_OPENS:
+ stats->data[i].long_name = "Opens";
+ stats->data[i].rate_name = "O";
+ SET_COUNT;
+ stats->data[i].verbose = 1;
+ break;
+ case _DRM_STAT_CLOSES:
+ stats->data[i].long_name = "Closes";
+ stats->data[i].rate_name = "Lock";
+ SET_COUNT;
+ stats->data[i].verbose = 1;
+ break;
+ case _DRM_STAT_IOCTLS:
+ stats->data[i].long_name = "Ioctls";
+ stats->data[i].rate_name = "Ioc/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_LOCKS:
+ stats->data[i].long_name = "Locks";
+ stats->data[i].rate_name = "Lck/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_UNLOCKS:
+ stats->data[i].long_name = "Unlocks";
+ stats->data[i].rate_name = "Unl/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_IRQ:
+ stats->data[i].long_name = "IRQs";
+ stats->data[i].rate_name = "IRQ/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_PRIMARY:
+ stats->data[i].long_name = "Primary Bytes";
+ stats->data[i].rate_name = "PB/s";
+ SET_BYTE;
+ break;
+ case _DRM_STAT_SECONDARY:
+ stats->data[i].long_name = "Secondary Bytes";
+ stats->data[i].rate_name = "SB/s";
+ SET_BYTE;
+ break;
+ case _DRM_STAT_DMA:
+ stats->data[i].long_name = "DMA";
+ stats->data[i].rate_name = "DMA/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_SPECIAL:
+ stats->data[i].long_name = "Special DMA";
+ stats->data[i].rate_name = "dma/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_MISSED:
+ stats->data[i].long_name = "Miss";
+ stats->data[i].rate_name = "Ms/s";
+ SET_COUNT;
+ break;
+ case _DRM_STAT_VALUE:
+ stats->data[i].long_name = "Value";
+ stats->data[i].rate_name = "Value";
+ SET_VALUE;
+ break;
+ case _DRM_STAT_BYTE:
+ stats->data[i].long_name = "Bytes";
+ stats->data[i].rate_name = "B/s";
+ SET_BYTE;
+ break;
+ case _DRM_STAT_COUNT:
+ default:
+ stats->data[i].long_name = "Count";
+ stats->data[i].rate_name = "Cnt/s";
+ SET_COUNT;
+ break;
+ }
}
return 0;
}
* Issue a set-version ioctl.
*
* \param fd file descriptor.
- * \param drmCommandIndex command index
+ * \param drmCommandIndex command index
* \param data source pointer of the data to be read and written.
* \param size size of the data to be read and written.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
- * It issues a read-write ioctl given by
+ * It issues a read-write ioctl given by
* \code DRM_COMMAND_BASE + drmCommandIndex \endcode.
*/
-int drmSetInterfaceVersion(int fd, drmSetVersion *version)
+drm_public int drmSetInterfaceVersion(int fd, drmSetVersion *version)
{
int retcode = 0;
drm_set_version_t sv;
sv.drm_dd_minor = version->drm_dd_minor;
if (drmIoctl(fd, DRM_IOCTL_SET_VERSION, &sv)) {
- retcode = -errno;
+ retcode = -errno;
}
version->drm_di_major = sv.drm_di_major;
* Send a device-specific command.
*
* \param fd file descriptor.
- * \param drmCommandIndex command index
- *
+ * \param drmCommandIndex command index
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
- * It issues a ioctl given by
+ * It issues a ioctl given by
* \code DRM_COMMAND_BASE + drmCommandIndex \endcode.
*/
-int drmCommandNone(int fd, unsigned long drmCommandIndex)
+drm_public int drmCommandNone(int fd, unsigned long drmCommandIndex)
{
unsigned long request;
request = DRM_IO( DRM_COMMAND_BASE + drmCommandIndex);
if (drmIoctl(fd, request, NULL)) {
- return -errno;
+ return -errno;
}
return 0;
}
* Send a device-specific read command.
*
* \param fd file descriptor.
- * \param drmCommandIndex command index
+ * \param drmCommandIndex command index
* \param data destination pointer of the data to be read.
* \param size size of the data to be read.
- *
+ *
* \return zero on success, or a negative value on failure.
*
* \internal
- * It issues a read ioctl given by
+ * It issues a read ioctl given by
* \code DRM_COMMAND_BASE + drmCommandIndex \endcode.
*/
-int drmCommandRead(int fd, unsigned long drmCommandIndex, void *data,
- unsigned long size)
+drm_public int drmCommandRead(int fd, unsigned long drmCommandIndex,
+ void *data, unsigned long size)
{
unsigned long request;
- request = DRM_IOC( DRM_IOC_READ, DRM_IOCTL_BASE,
- DRM_COMMAND_BASE + drmCommandIndex, size);
+ request = DRM_IOC( DRM_IOC_READ, DRM_IOCTL_BASE,
+ DRM_COMMAND_BASE + drmCommandIndex, size);
if (drmIoctl(fd, request, data)) {
- return -errno;
+ return -errno;
}
return 0;
}
* Send a device-specific write command.
*
* \param fd file descriptor.
- * \param drmCommandIndex command index
+ * \param drmCommandIndex command index
* \param data source pointer of the data to be written.
* \param size size of the data to be written.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
- * It issues a write ioctl given by
+ * It issues a write ioctl given by
* \code DRM_COMMAND_BASE + drmCommandIndex \endcode.
*/
-int drmCommandWrite(int fd, unsigned long drmCommandIndex, void *data,
- unsigned long size)
+drm_public int drmCommandWrite(int fd, unsigned long drmCommandIndex,
+ void *data, unsigned long size)
{
unsigned long request;
- request = DRM_IOC( DRM_IOC_WRITE, DRM_IOCTL_BASE,
- DRM_COMMAND_BASE + drmCommandIndex, size);
+ request = DRM_IOC( DRM_IOC_WRITE, DRM_IOCTL_BASE,
+ DRM_COMMAND_BASE + drmCommandIndex, size);
if (drmIoctl(fd, request, data)) {
- return -errno;
+ return -errno;
}
return 0;
}
* Send a device-specific read-write command.
*
* \param fd file descriptor.
- * \param drmCommandIndex command index
+ * \param drmCommandIndex command index
* \param data source pointer of the data to be read and written.
* \param size size of the data to be read and written.
- *
+ *
* \return zero on success, or a negative value on failure.
- *
+ *
* \internal
- * It issues a read-write ioctl given by
+ * It issues a read-write ioctl given by
* \code DRM_COMMAND_BASE + drmCommandIndex \endcode.
*/
-int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, void *data,
- unsigned long size)
+drm_public int drmCommandWriteRead(int fd, unsigned long drmCommandIndex,
+ void *data, unsigned long size)
{
unsigned long request;
- request = DRM_IOC( DRM_IOC_READ|DRM_IOC_WRITE, DRM_IOCTL_BASE,
- DRM_COMMAND_BASE + drmCommandIndex, size);
+ request = DRM_IOC( DRM_IOC_READ|DRM_IOC_WRITE, DRM_IOCTL_BASE,
+ DRM_COMMAND_BASE + drmCommandIndex, size);
if (drmIoctl(fd, request, data))
- return -errno;
+ return -errno;
return 0;
}
static int nr_fds = 0;
-int drmOpenOnce(void *unused,
- const char *BusID,
- int *newlyopened)
+drm_public int drmOpenOnce(void *unused, const char *BusID, int *newlyopened)
{
return drmOpenOnceWithType(BusID, newlyopened, DRM_NODE_PRIMARY);
}
-int drmOpenOnceWithType(const char *BusID, int *newlyopened, int type)
+drm_public int drmOpenOnceWithType(const char *BusID, int *newlyopened,
+ int type)
{
int i;
int fd;
-
+
for (i = 0; i < nr_fds; i++)
- if ((strcmp(BusID, connection[i].BusID) == 0) &&
- (connection[i].type == type)) {
- connection[i].refcount++;
- *newlyopened = 0;
- return connection[i].fd;
- }
+ if ((strcmp(BusID, connection[i].BusID) == 0) &&
+ (connection[i].type == type)) {
+ connection[i].refcount++;
+ *newlyopened = 0;
+ return connection[i].fd;
+ }
fd = drmOpenWithType(NULL, BusID, type);
if (fd < 0 || nr_fds == DRM_MAX_FDS)
- return fd;
-
+ return fd;
+
connection[nr_fds].BusID = strdup(BusID);
connection[nr_fds].fd = fd;
connection[nr_fds].refcount = 1;
*newlyopened = 1;
if (0)
- fprintf(stderr, "saved connection %d for %s %d\n",
- nr_fds, connection[nr_fds].BusID,
- strcmp(BusID, connection[nr_fds].BusID));
+ fprintf(stderr, "saved connection %d for %s %d\n",
+ nr_fds, connection[nr_fds].BusID,
+ strcmp(BusID, connection[nr_fds].BusID));
nr_fds++;
return fd;
}
-void drmCloseOnce(int fd)
+drm_public void drmCloseOnce(int fd)
{
int i;
for (i = 0; i < nr_fds; i++) {
- if (fd == connection[i].fd) {
- if (--connection[i].refcount == 0) {
- drmClose(connection[i].fd);
- free(connection[i].BusID);
-
- if (i < --nr_fds)
- connection[i] = connection[nr_fds];
+ if (fd == connection[i].fd) {
+ if (--connection[i].refcount == 0) {
+ drmClose(connection[i].fd);
+ free(connection[i].BusID);
- return;
- }
- }
+ if (i < --nr_fds)
+ connection[i] = connection[nr_fds];
+
+ return;
+ }
+ }
}
}
-int drmSetMaster(int fd)
+drm_public int drmSetMaster(int fd)
+{
+ return drmIoctl(fd, DRM_IOCTL_SET_MASTER, NULL);
+}
+
+drm_public int drmDropMaster(int fd)
{
- return drmIoctl(fd, DRM_IOCTL_SET_MASTER, NULL);
+ return drmIoctl(fd, DRM_IOCTL_DROP_MASTER, NULL);
}
-int drmDropMaster(int fd)
+drm_public int drmIsMaster(int fd)
{
- return drmIoctl(fd, DRM_IOCTL_DROP_MASTER, NULL);
+ /* Detect master by attempting something that requires master.
+ *
+ * Authenticating magic tokens requires master and 0 is an
+ * internal kernel detail which we could use. Attempting this on
+ * a master fd would fail therefore fail with EINVAL because 0
+ * is invalid.
+ *
+ * A non-master fd will fail with EACCES, as the kernel checks
+ * for master before attempting to do anything else.
+ *
+ * Since we don't want to leak implementation details, use
+ * EACCES.
+ */
+ return drmAuthMagic(fd, 0) != -EACCES;
}
-char *drmGetDeviceNameFromFd(int fd)
+drm_public char *drmGetDeviceNameFromFd(int fd)
{
- char name[128];
- struct stat sbuf;
- dev_t d;
- int i;
+#ifdef __FreeBSD__
+ struct stat sbuf;
+ int maj, min;
+ int nodetype;
- /* The whole drmOpen thing is a fiasco and we need to find a way
- * back to just using open(2). For now, however, lets just make
- * things worse with even more ad hoc directory walking code to
- * discover the device file name. */
+ if (fstat(fd, &sbuf))
+ return NULL;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+ nodetype = drmGetMinorType(maj, min);
+ return drmGetMinorNameForFD(fd, nodetype);
+#else
+ char name[128];
+ struct stat sbuf;
+ dev_t d;
+ int i;
- fstat(fd, &sbuf);
- d = sbuf.st_rdev;
+ /* The whole drmOpen thing is a fiasco and we need to find a way
+ * back to just using open(2). For now, however, lets just make
+ * things worse with even more ad hoc directory walking code to
+ * discover the device file name. */
+
+ fstat(fd, &sbuf);
+ d = sbuf.st_rdev;
+
+ for (i = 0; i < DRM_MAX_MINOR; i++) {
+ snprintf(name, sizeof name, DRM_DEV_NAME, DRM_DIR_NAME, i);
+ if (stat(name, &sbuf) == 0 && sbuf.st_rdev == d)
+ break;
+ }
+ if (i == DRM_MAX_MINOR)
+ return NULL;
+
+ return strdup(name);
+#endif
+}
- for (i = 0; i < DRM_MAX_MINOR; i++) {
- snprintf(name, sizeof name, DRM_DEV_NAME, DRM_DIR_NAME, i);
- if (stat(name, &sbuf) == 0 && sbuf.st_rdev == d)
- break;
- }
- if (i == DRM_MAX_MINOR)
- return NULL;
+static bool drmNodeIsDRM(int maj, int min)
+{
+#ifdef __linux__
+ char path[64];
+ struct stat sbuf;
- return strdup(name);
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device/drm",
+ maj, min);
+ return stat(path, &sbuf) == 0;
+#elif defined(__FreeBSD__)
+ char name[SPECNAMELEN];
+
+ if (!devname_r(makedev(maj, min), S_IFCHR, name, sizeof(name)))
+ return 0;
+ /* Handle drm/ and dri/ as both are present in different FreeBSD version
+ * FreeBSD on amd64/i386/powerpc external kernel modules create node in
+ * in /dev/drm/ and links in /dev/dri while a WIP in kernel driver creates
+ * only device nodes in /dev/dri/ */
+ return (!strncmp(name, "drm/", 4) || !strncmp(name, "dri/", 4));
+#else
+ return maj == DRM_MAJOR;
+#endif
}
-int drmGetNodeTypeFromFd(int fd)
+drm_public int drmGetNodeTypeFromFd(int fd)
{
- struct stat sbuf;
- int maj, min, type;
+ struct stat sbuf;
+ int maj, min, type;
- if (fstat(fd, &sbuf))
- return -1;
+ if (fstat(fd, &sbuf))
+ return -1;
- maj = major(sbuf.st_rdev);
- min = minor(sbuf.st_rdev);
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
- if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) {
- errno = EINVAL;
- return -1;
- }
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode)) {
+ errno = EINVAL;
+ return -1;
+ }
- type = drmGetMinorType(min);
- if (type == -1)
- errno = ENODEV;
- return type;
+ type = drmGetMinorType(maj, min);
+ if (type == -1)
+ errno = ENODEV;
+ return type;
}
-int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd)
+drm_public int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags,
+ int *prime_fd)
{
- struct drm_prime_handle args;
- int ret;
+ struct drm_prime_handle args;
+ int ret;
- memclear(args);
- args.fd = -1;
- args.handle = handle;
- args.flags = flags;
- ret = drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
- if (ret)
- return ret;
+ memclear(args);
+ args.fd = -1;
+ args.handle = handle;
+ args.flags = flags;
+ ret = drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
+ if (ret)
+ return ret;
- *prime_fd = args.fd;
- return 0;
+ *prime_fd = args.fd;
+ return 0;
}
-int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle)
+drm_public int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle)
{
- struct drm_prime_handle args;
- int ret;
+ struct drm_prime_handle args;
+ int ret;
- memclear(args);
- args.fd = prime_fd;
- ret = drmIoctl(fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &args);
- if (ret)
- return ret;
+ memclear(args);
+ args.fd = prime_fd;
+ ret = drmIoctl(fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &args);
+ if (ret)
+ return ret;
- *handle = args.handle;
- return 0;
+ *handle = args.handle;
+ return 0;
}
static char *drmGetMinorNameForFD(int fd, int type)
{
#ifdef __linux__
- DIR *sysdir;
- struct dirent *pent, *ent;
- struct stat sbuf;
- const char *name = drmGetMinorName(type);
- int len;
- char dev_name[64], buf[64];
- long name_max;
- int maj, min;
+ DIR *sysdir;
+ struct dirent *ent;
+ struct stat sbuf;
+ const char *name = drmGetMinorName(type);
+ int len;
+ char dev_name[64], buf[64];
+ int maj, min;
+
+ if (!name)
+ return NULL;
+
+ len = strlen(name);
+
+ if (fstat(fd, &sbuf))
+ return NULL;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
- if (!name)
- return NULL;
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return NULL;
+
+ snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/device/drm", maj, min);
- len = strlen(name);
+ sysdir = opendir(buf);
+ if (!sysdir)
+ return NULL;
- if (fstat(fd, &sbuf))
- return NULL;
+ while ((ent = readdir(sysdir))) {
+ if (strncmp(ent->d_name, name, len) == 0) {
+ snprintf(dev_name, sizeof(dev_name), DRM_DIR_NAME "/%s",
+ ent->d_name);
- maj = major(sbuf.st_rdev);
- min = minor(sbuf.st_rdev);
+ closedir(sysdir);
+ return strdup(dev_name);
+ }
+ }
- if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode))
- return NULL;
+ closedir(sysdir);
+ return NULL;
+#elif defined(__FreeBSD__)
+ struct stat sbuf;
+ char dname[SPECNAMELEN];
+ const char *mname;
+ char name[SPECNAMELEN];
+ int id, maj, min, nodetype, i;
- snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/device/drm", maj, min);
+ if (fstat(fd, &sbuf))
+ return NULL;
- sysdir = opendir(buf);
- if (!sysdir)
- return NULL;
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
- name_max = fpathconf(dirfd(sysdir), _PC_NAME_MAX);
- if (name_max == -1)
- goto out_close_dir;
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return NULL;
- pent = malloc(offsetof(struct dirent, d_name) + name_max + 1);
- if (pent == NULL)
- goto out_close_dir;
+ if (!devname_r(sbuf.st_rdev, S_IFCHR, dname, sizeof(dname)))
+ return NULL;
- while (readdir_r(sysdir, pent, &ent) == 0 && ent != NULL) {
- if (strncmp(ent->d_name, name, len) == 0) {
- snprintf(dev_name, sizeof(dev_name), DRM_DIR_NAME "/%s",
- ent->d_name);
+ /* Handle both /dev/drm and /dev/dri
+ * FreeBSD on amd64/i386/powerpc external kernel modules create node in
+ * in /dev/drm/ and links in /dev/dri while a WIP in kernel driver creates
+ * only device nodes in /dev/dri/ */
- free(pent);
- closedir(sysdir);
+ /* Get the node type represented by fd so we can deduce the target name */
+ nodetype = drmGetMinorType(maj, min);
+ if (nodetype == -1)
+ return (NULL);
+ mname = drmGetMinorName(type);
- return strdup(dev_name);
- }
- }
+ for (i = 0; i < SPECNAMELEN; i++) {
+ if (isalpha(dname[i]) == 0 && dname[i] != '/')
+ break;
+ }
+ if (dname[i] == '\0')
+ return (NULL);
- free(pent);
+ id = (int)strtol(&dname[i], NULL, 10);
+ id -= drmGetMinorBase(nodetype);
+ snprintf(name, sizeof(name), DRM_DIR_NAME "/%s%d", mname,
+ id + drmGetMinorBase(type));
-out_close_dir:
- closedir(sysdir);
+ return strdup(name);
#else
-#warning "Missing implementation of drmGetMinorNameForFD"
+ struct stat sbuf;
+ char buf[PATH_MAX + 1];
+ const char *dev_name = drmGetDeviceName(type);
+ unsigned int maj, min;
+ int n;
+
+ if (fstat(fd, &sbuf))
+ return NULL;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return NULL;
+
+ if (!dev_name)
+ return NULL;
+
+ n = snprintf(buf, sizeof(buf), dev_name, DRM_DIR_NAME, min);
+ if (n == -1 || n >= sizeof(buf))
+ return NULL;
+
+ return strdup(buf);
#endif
- return NULL;
}
-char *drmGetPrimaryDeviceNameFromFd(int fd)
+drm_public char *drmGetPrimaryDeviceNameFromFd(int fd)
{
- return drmGetMinorNameForFD(fd, DRM_NODE_PRIMARY);
+ return drmGetMinorNameForFD(fd, DRM_NODE_PRIMARY);
}
-char *drmGetRenderDeviceNameFromFd(int fd)
+drm_public char *drmGetRenderDeviceNameFromFd(int fd)
{
- return drmGetMinorNameForFD(fd, DRM_NODE_RENDER);
+ return drmGetMinorNameForFD(fd, DRM_NODE_RENDER);
}
-static int drmParseSubsystemType(int maj, int min)
+#ifdef __linux__
+static char * DRM_PRINTFLIKE(2, 3)
+sysfs_uevent_get(const char *path, const char *fmt, ...)
{
+ char filename[PATH_MAX + 1], *key, *line = NULL, *value = NULL;
+ size_t size = 0, len;
+ ssize_t num;
+ va_list ap;
+ FILE *fp;
+
+ va_start(ap, fmt);
+ num = vasprintf(&key, fmt, ap);
+ va_end(ap);
+ len = num;
+
+ snprintf(filename, sizeof(filename), "%s/uevent", path);
+
+ fp = fopen(filename, "r");
+ if (!fp) {
+ free(key);
+ return NULL;
+ }
+
+ while ((num = getline(&line, &size, fp)) >= 0) {
+ if ((strncmp(line, key, len) == 0) && (line[len] == '=')) {
+ char *start = line + len + 1, *end = line + num - 1;
+
+ if (*end != '\n')
+ end++;
+
+ value = strndup(start, end - start);
+ break;
+ }
+ }
+
+ free(line);
+ fclose(fp);
+
+ free(key);
+
+ return value;
+}
+#endif
+
+/* Little white lie to avoid major rework of the existing code */
+#define DRM_BUS_VIRTIO 0x10
+
#ifdef __linux__
- char path[PATH_MAX + 1];
+static int get_subsystem_type(const char *device_path)
+{
+ char path[PATH_MAX + 1] = "";
char link[PATH_MAX + 1] = "";
char *name;
+ struct {
+ const char *name;
+ int bus_type;
+ } bus_types[] = {
+ { "/pci", DRM_BUS_PCI },
+ { "/usb", DRM_BUS_USB },
+ { "/platform", DRM_BUS_PLATFORM },
+ { "/spi", DRM_BUS_PLATFORM },
+ { "/host1x", DRM_BUS_HOST1X },
+ { "/virtio", DRM_BUS_VIRTIO },
+ };
- snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device/subsystem",
- maj, min);
+ strncpy(path, device_path, PATH_MAX);
+ strncat(path, "/subsystem", PATH_MAX);
if (readlink(path, link, PATH_MAX) < 0)
return -errno;
if (!name)
return -EINVAL;
- if (strncmp(name, "/pci", 4) == 0)
- return DRM_BUS_PCI;
+ for (unsigned i = 0; i < ARRAY_SIZE(bus_types); i++) {
+ if (strncmp(name, bus_types[i].name, strlen(bus_types[i].name)) == 0)
+ return bus_types[i].bus_type;
+ }
return -EINVAL;
+}
+#endif
+
+static int drmParseSubsystemType(int maj, int min)
+{
+#ifdef __linux__
+ char path[PATH_MAX + 1] = "";
+ char real_path[PATH_MAX + 1] = "";
+ int subsystem_type;
+
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
+
+ subsystem_type = get_subsystem_type(path);
+ /* Try to get the parent (underlying) device type */
+ if (subsystem_type == DRM_BUS_VIRTIO) {
+ /* Assume virtio-pci on error */
+ if (!realpath(path, real_path))
+ return DRM_BUS_VIRTIO;
+ strncat(path, "/..", PATH_MAX);
+ subsystem_type = get_subsystem_type(path);
+ if (subsystem_type < 0)
+ return DRM_BUS_VIRTIO;
+ }
+ return subsystem_type;
+#elif defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD__)
+ return DRM_BUS_PCI;
#else
#warning "Missing implementation of drmParseSubsystemType"
return -EINVAL;
#endif
}
+#ifdef __linux__
+static void
+get_pci_path(int maj, int min, char *pci_path)
+{
+ char path[PATH_MAX + 1], *term;
+
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
+ if (!realpath(path, pci_path)) {
+ strcpy(pci_path, path);
+ return;
+ }
+
+ term = strrchr(pci_path, '/');
+ if (term && strncmp(term, "/virtio", 7) == 0)
+ *term = 0;
+}
+#endif
+
+#ifdef __FreeBSD__
+static int get_sysctl_pci_bus_info(int maj, int min, drmPciBusInfoPtr info)
+{
+ char dname[SPECNAMELEN];
+ char sysctl_name[16];
+ char sysctl_val[256];
+ size_t sysctl_len;
+ int id, type, nelem;
+ unsigned int rdev, majmin, domain, bus, dev, func;
+
+ rdev = makedev(maj, min);
+ if (!devname_r(rdev, S_IFCHR, dname, sizeof(dname)))
+ return -EINVAL;
+
+ if (sscanf(dname, "drm/%d\n", &id) != 1)
+ return -EINVAL;
+ type = drmGetMinorType(maj, min);
+ if (type == -1)
+ return -EINVAL;
+
+ /* BUG: This above section is iffy, since it mandates that a driver will
+ * create both card and render node.
+ * If it does not, the next DRM device will create card#X and
+ * renderD#(128+X)-1.
+ * This is a possibility in FreeBSD but for now there is no good way for
+ * obtaining the info.
+ */
+ switch (type) {
+ case DRM_NODE_PRIMARY:
+ break;
+ case DRM_NODE_CONTROL:
+ id -= 64;
+ break;
+ case DRM_NODE_RENDER:
+ id -= 128;
+ break;
+ }
+ if (id < 0)
+ return -EINVAL;
+
+ if (snprintf(sysctl_name, sizeof(sysctl_name), "hw.dri.%d.busid", id) <= 0)
+ return -EINVAL;
+ sysctl_len = sizeof(sysctl_val);
+ if (sysctlbyname(sysctl_name, sysctl_val, &sysctl_len, NULL, 0))
+ return -EINVAL;
+
+ #define bus_fmt "pci:%04x:%02x:%02x.%u"
+
+ nelem = sscanf(sysctl_val, bus_fmt, &domain, &bus, &dev, &func);
+ if (nelem != 4)
+ return -EINVAL;
+ info->domain = domain;
+ info->bus = bus;
+ info->dev = dev;
+ info->func = func;
+
+ return 0;
+}
+#endif
+
static int drmParsePciBusInfo(int maj, int min, drmPciBusInfoPtr info)
{
#ifdef __linux__
- char path[PATH_MAX + 1];
- char data[128 + 1];
- char *str;
- int domain, bus, dev, func;
- int fd, ret;
+ unsigned int domain, bus, dev, func;
+ char pci_path[PATH_MAX + 1], *value;
+ int num;
- snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device/uevent", maj, min);
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return -errno;
+ get_pci_path(maj, min, pci_path);
- ret = read(fd, data, sizeof(data));
- data[128] = '\0';
- close(fd);
- if (ret < 0)
- return -errno;
+ value = sysfs_uevent_get(pci_path, "PCI_SLOT_NAME");
+ if (!value)
+ return -ENOENT;
-#define TAG "PCI_SLOT_NAME="
- str = strstr(data, TAG);
- if (str == NULL)
- return -EINVAL;
+ num = sscanf(value, "%04x:%02x:%02x.%1u", &domain, &bus, &dev, &func);
+ free(value);
- if (sscanf(str, TAG "%04x:%02x:%02x.%1u",
- &domain, &bus, &dev, &func) != 4)
+ if (num != 4)
return -EINVAL;
-#undef TAG
info->domain = domain;
info->bus = bus;
info->func = func;
return 0;
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
+ struct drm_pciinfo pinfo;
+ int fd, type;
+
+ type = drmGetMinorType(maj, min);
+ if (type == -1)
+ return -ENODEV;
+
+ fd = drmOpenMinor(min, 0, type);
+ if (fd < 0)
+ return -errno;
+
+ if (drmIoctl(fd, DRM_IOCTL_GET_PCIINFO, &pinfo)) {
+ close(fd);
+ return -errno;
+ }
+ close(fd);
+
+ info->domain = pinfo.domain;
+ info->bus = pinfo.bus;
+ info->dev = pinfo.dev;
+ info->func = pinfo.func;
+
+ return 0;
+#elif defined(__FreeBSD__)
+ return get_sysctl_pci_bus_info(maj, min, info);
#else
#warning "Missing implementation of drmParsePciBusInfo"
return -EINVAL;
#endif
}
-static int drmCompareBusInfo(drmDevicePtr a, drmDevicePtr b)
+drm_public int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b)
{
if (a == NULL || b == NULL)
- return -1;
+ return 0;
if (a->bustype != b->bustype)
- return -1;
+ return 0;
switch (a->bustype) {
case DRM_BUS_PCI:
- return memcmp(a->businfo.pci, b->businfo.pci, sizeof(drmPciBusInfo));
+ return memcmp(a->businfo.pci, b->businfo.pci, sizeof(drmPciBusInfo)) == 0;
+
+ case DRM_BUS_USB:
+ return memcmp(a->businfo.usb, b->businfo.usb, sizeof(drmUsbBusInfo)) == 0;
+
+ case DRM_BUS_PLATFORM:
+ return memcmp(a->businfo.platform, b->businfo.platform, sizeof(drmPlatformBusInfo)) == 0;
+
+ case DRM_BUS_HOST1X:
+ return memcmp(a->businfo.host1x, b->businfo.host1x, sizeof(drmHost1xBusInfo)) == 0;
+
default:
break;
}
- return -1;
+ return 0;
}
static int drmGetNodeType(const char *name)
{
- if (strncmp(name, DRM_PRIMARY_MINOR_NAME,
- sizeof(DRM_PRIMARY_MINOR_NAME) - 1) == 0)
- return DRM_NODE_PRIMARY;
-
if (strncmp(name, DRM_CONTROL_MINOR_NAME,
sizeof(DRM_CONTROL_MINOR_NAME ) - 1) == 0)
return DRM_NODE_CONTROL;
sizeof(DRM_RENDER_MINOR_NAME) - 1) == 0)
return DRM_NODE_RENDER;
+ if (strncmp(name, DRM_PRIMARY_MINOR_NAME,
+ sizeof(DRM_PRIMARY_MINOR_NAME) - 1) == 0)
+ return DRM_NODE_PRIMARY;
+
return -EINVAL;
}
3 /* length of the node number */;
}
-static int drmParsePciDeviceInfo(const char *d_name,
- drmPciDeviceInfoPtr device)
-{
#ifdef __linux__
- char path[PATH_MAX + 1];
+static int parse_separate_sysfs_files(int maj, int min,
+ drmPciDeviceInfoPtr device,
+ bool ignore_revision)
+{
+ static const char *attrs[] = {
+ "revision", /* Older kernels are missing the file, so check for it first */
+ "vendor",
+ "device",
+ "subsystem_vendor",
+ "subsystem_device",
+ };
+ char path[PATH_MAX + 1], pci_path[PATH_MAX + 1];
+ unsigned int data[ARRAY_SIZE(attrs)];
+ FILE *fp;
+ int ret;
+
+ get_pci_path(maj, min, pci_path);
+
+ for (unsigned i = ignore_revision ? 1 : 0; i < ARRAY_SIZE(attrs); i++) {
+ snprintf(path, PATH_MAX, "%s/%s", pci_path, attrs[i]);
+ fp = fopen(path, "r");
+ if (!fp)
+ return -errno;
+
+ ret = fscanf(fp, "%x", &data[i]);
+ fclose(fp);
+ if (ret != 1)
+ return -errno;
+
+ }
+
+ device->revision_id = ignore_revision ? 0xff : data[0] & 0xff;
+ device->vendor_id = data[1] & 0xffff;
+ device->device_id = data[2] & 0xffff;
+ device->subvendor_id = data[3] & 0xffff;
+ device->subdevice_id = data[4] & 0xffff;
+
+ return 0;
+}
+
+static int parse_config_sysfs_file(int maj, int min,
+ drmPciDeviceInfoPtr device)
+{
+ char path[PATH_MAX + 1], pci_path[PATH_MAX + 1];
unsigned char config[64];
int fd, ret;
- snprintf(path, PATH_MAX, "/sys/class/drm/%s/device/config", d_name);
+ get_pci_path(maj, min, pci_path);
+
+ snprintf(path, PATH_MAX, "%s/config", pci_path);
fd = open(path, O_RDONLY);
if (fd < 0)
return -errno;
device->subdevice_id = config[46] | (config[47] << 8);
return 0;
-#else
-#warning "Missing implementation of drmParsePciDeviceInfo"
- return -EINVAL;
-#endif
}
+#endif
-void drmFreeDevice(drmDevicePtr *device)
+static int drmParsePciDeviceInfo(int maj, int min,
+ drmPciDeviceInfoPtr device,
+ uint32_t flags)
{
- if (device == NULL)
- return;
+#ifdef __linux__
+ if (!(flags & DRM_DEVICE_GET_PCI_REVISION))
+ return parse_separate_sysfs_files(maj, min, device, true);
- free(*device);
- *device = NULL;
-}
+ if (parse_separate_sysfs_files(maj, min, device, false))
+ return parse_config_sysfs_file(maj, min, device);
-void drmFreeDevices(drmDevicePtr devices[], int count)
-{
- int i;
+ return 0;
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
+ struct drm_pciinfo pinfo;
+ int fd, type;
- if (devices == NULL)
- return;
+ type = drmGetMinorType(maj, min);
+ if (type == -1)
+ return -ENODEV;
- for (i = 0; i < count && devices[i] != NULL; i++)
- drmFreeDevice(&devices[i]);
-}
+ fd = drmOpenMinor(min, 0, type);
+ if (fd < 0)
+ return -errno;
-static int drmProcessPciDevice(drmDevicePtr *device, const char *d_name,
- const char *node, int node_type,
- int maj, int min, bool fetch_deviceinfo)
+ if (drmIoctl(fd, DRM_IOCTL_GET_PCIINFO, &pinfo)) {
+ close(fd);
+ return -errno;
+ }
+ close(fd);
+
+ device->vendor_id = pinfo.vendor_id;
+ device->device_id = pinfo.device_id;
+ device->revision_id = pinfo.revision_id;
+ device->subvendor_id = pinfo.subvendor_id;
+ device->subdevice_id = pinfo.subdevice_id;
+
+ return 0;
+#elif defined(__FreeBSD__)
+ drmPciBusInfo info;
+ struct pci_conf_io pc;
+ struct pci_match_conf patterns[1];
+ struct pci_conf results[1];
+ int fd, error;
+
+ if (get_sysctl_pci_bus_info(maj, min, &info) != 0)
+ return -EINVAL;
+
+ fd = open("/dev/pci", O_RDONLY, 0);
+ if (fd < 0)
+ return -errno;
+
+ bzero(&patterns, sizeof(patterns));
+ patterns[0].pc_sel.pc_domain = info.domain;
+ patterns[0].pc_sel.pc_bus = info.bus;
+ patterns[0].pc_sel.pc_dev = info.dev;
+ patterns[0].pc_sel.pc_func = info.func;
+ patterns[0].flags = PCI_GETCONF_MATCH_DOMAIN | PCI_GETCONF_MATCH_BUS
+ | PCI_GETCONF_MATCH_DEV | PCI_GETCONF_MATCH_FUNC;
+ bzero(&pc, sizeof(struct pci_conf_io));
+ pc.num_patterns = 1;
+ pc.pat_buf_len = sizeof(patterns);
+ pc.patterns = patterns;
+ pc.match_buf_len = sizeof(results);
+ pc.matches = results;
+
+ if (ioctl(fd, PCIOCGETCONF, &pc) || pc.status == PCI_GETCONF_ERROR) {
+ error = errno;
+ close(fd);
+ return -error;
+ }
+ close(fd);
+
+ device->vendor_id = results[0].pc_vendor;
+ device->device_id = results[0].pc_device;
+ device->subvendor_id = results[0].pc_subvendor;
+ device->subdevice_id = results[0].pc_subdevice;
+ device->revision_id = results[0].pc_revid;
+
+ return 0;
+#else
+#warning "Missing implementation of drmParsePciDeviceInfo"
+ return -EINVAL;
+#endif
+}
+
+static void drmFreePlatformDevice(drmDevicePtr device)
{
- const int max_node_str = drmGetMaxNodeName();
- int ret, i;
- char *addr;
+ if (device->deviceinfo.platform) {
+ if (device->deviceinfo.platform->compatible) {
+ char **compatible = device->deviceinfo.platform->compatible;
- *device = calloc(1, sizeof(drmDevice) +
- (DRM_NODE_MAX * (sizeof(void *) + max_node_str)) +
- sizeof(drmPciBusInfo) +
- sizeof(drmPciDeviceInfo));
- if (!*device)
- return -ENOMEM;
+ while (*compatible) {
+ free(*compatible);
+ compatible++;
+ }
+
+ free(device->deviceinfo.platform->compatible);
+ }
+ }
+}
+
+static void drmFreeHost1xDevice(drmDevicePtr device)
+{
+ if (device->deviceinfo.host1x) {
+ if (device->deviceinfo.host1x->compatible) {
+ char **compatible = device->deviceinfo.host1x->compatible;
+
+ while (*compatible) {
+ free(*compatible);
+ compatible++;
+ }
+
+ free(device->deviceinfo.host1x->compatible);
+ }
+ }
+}
+
+drm_public void drmFreeDevice(drmDevicePtr *device)
+{
+ if (device == NULL)
+ return;
+
+ if (*device) {
+ switch ((*device)->bustype) {
+ case DRM_BUS_PLATFORM:
+ drmFreePlatformDevice(*device);
+ break;
+
+ case DRM_BUS_HOST1X:
+ drmFreeHost1xDevice(*device);
+ break;
+ }
+ }
+
+ free(*device);
+ *device = NULL;
+}
+
+drm_public void drmFreeDevices(drmDevicePtr devices[], int count)
+{
+ int i;
+
+ if (devices == NULL)
+ return;
+
+ for (i = 0; i < count; i++)
+ if (devices[i])
+ drmFreeDevice(&devices[i]);
+}
+
+static drmDevicePtr drmDeviceAlloc(unsigned int type, const char *node,
+ size_t bus_size, size_t device_size,
+ char **ptrp)
+{
+ size_t max_node_length, extra, size;
+ drmDevicePtr device;
+ unsigned int i;
+ char *ptr;
+
+ max_node_length = ALIGN(drmGetMaxNodeName(), sizeof(void *));
+ extra = DRM_NODE_MAX * (sizeof(void *) + max_node_length);
+
+ size = sizeof(*device) + extra + bus_size + device_size;
+
+ device = calloc(1, size);
+ if (!device)
+ return NULL;
+
+ device->available_nodes = 1 << type;
- addr = (char*)*device;
-
- (*device)->bustype = DRM_BUS_PCI;
- (*device)->available_nodes = 1 << node_type;
+ ptr = (char *)device + sizeof(*device);
+ device->nodes = (char **)ptr;
- addr += sizeof(drmDevice);
- (*device)->nodes = (char**)addr;
+ ptr += DRM_NODE_MAX * sizeof(void *);
- addr += DRM_NODE_MAX * sizeof(void *);
for (i = 0; i < DRM_NODE_MAX; i++) {
- (*device)->nodes[i] = addr;
- addr += max_node_str;
+ device->nodes[i] = ptr;
+ ptr += max_node_length;
}
- memcpy((*device)->nodes[node_type], node, max_node_str);
- (*device)->businfo.pci = (drmPciBusInfoPtr)addr;
+ memcpy(device->nodes[type], node, max_node_length);
- ret = drmParsePciBusInfo(maj, min, (*device)->businfo.pci);
+ *ptrp = ptr;
+
+ return device;
+}
+
+static int drmProcessPciDevice(drmDevicePtr *device,
+ const char *node, int node_type,
+ int maj, int min, bool fetch_deviceinfo,
+ uint32_t flags)
+{
+ drmDevicePtr dev;
+ char *addr;
+ int ret;
+
+ dev = drmDeviceAlloc(node_type, node, sizeof(drmPciBusInfo),
+ sizeof(drmPciDeviceInfo), &addr);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->bustype = DRM_BUS_PCI;
+
+ dev->businfo.pci = (drmPciBusInfoPtr)addr;
+
+ ret = drmParsePciBusInfo(maj, min, dev->businfo.pci);
if (ret)
goto free_device;
// Fetch the device info if the user has requested it
if (fetch_deviceinfo) {
addr += sizeof(drmPciBusInfo);
- (*device)->deviceinfo.pci = (drmPciDeviceInfoPtr)addr;
+ dev->deviceinfo.pci = (drmPciDeviceInfoPtr)addr;
- ret = drmParsePciDeviceInfo(d_name, (*device)->deviceinfo.pci);
+ ret = drmParsePciDeviceInfo(maj, min, dev->deviceinfo.pci, flags);
if (ret)
goto free_device;
}
+
+ *device = dev;
+
return 0;
free_device:
- free(*device);
- *device = NULL;
+ free(dev);
+ return ret;
+}
+
+#ifdef __linux__
+static int drm_usb_dev_path(int maj, int min, char *path, size_t len)
+{
+ char *value, *tmp_path, *slash;
+
+ snprintf(path, len, "/sys/dev/char/%d:%d/device", maj, min);
+
+ value = sysfs_uevent_get(path, "DEVTYPE");
+ if (!value)
+ return -ENOENT;
+
+ if (strcmp(value, "usb_device") == 0)
+ return 0;
+ if (strcmp(value, "usb_interface") != 0)
+ return -ENOTSUP;
+
+ /* The parent of a usb_interface is a usb_device */
+
+ tmp_path = realpath(path, NULL);
+ if (!tmp_path)
+ return -errno;
+
+ slash = strrchr(tmp_path, '/');
+ if (!slash) {
+ free(tmp_path);
+ return -EINVAL;
+ }
+
+ *slash = '\0';
+
+ if (snprintf(path, len, "%s", tmp_path) >= (int)len) {
+ free(tmp_path);
+ return -EINVAL;
+ }
+
+ free(tmp_path);
+ return 0;
+}
+#endif
+
+static int drmParseUsbBusInfo(int maj, int min, drmUsbBusInfoPtr info)
+{
+#ifdef __linux__
+ char path[PATH_MAX + 1], *value;
+ unsigned int bus, dev;
+ int ret;
+
+ ret = drm_usb_dev_path(maj, min, path, sizeof(path));
+ if (ret < 0)
+ return ret;
+
+ value = sysfs_uevent_get(path, "BUSNUM");
+ if (!value)
+ return -ENOENT;
+
+ ret = sscanf(value, "%03u", &bus);
+ free(value);
+
+ if (ret <= 0)
+ return -errno;
+
+ value = sysfs_uevent_get(path, "DEVNUM");
+ if (!value)
+ return -ENOENT;
+
+ ret = sscanf(value, "%03u", &dev);
+ free(value);
+
+ if (ret <= 0)
+ return -errno;
+
+ info->bus = bus;
+ info->dev = dev;
+
+ return 0;
+#else
+#warning "Missing implementation of drmParseUsbBusInfo"
+ return -EINVAL;
+#endif
+}
+
+static int drmParseUsbDeviceInfo(int maj, int min, drmUsbDeviceInfoPtr info)
+{
+#ifdef __linux__
+ char path[PATH_MAX + 1], *value;
+ unsigned int vendor, product;
+ int ret;
+
+ ret = drm_usb_dev_path(maj, min, path, sizeof(path));
+ if (ret < 0)
+ return ret;
+
+ value = sysfs_uevent_get(path, "PRODUCT");
+ if (!value)
+ return -ENOENT;
+
+ ret = sscanf(value, "%x/%x", &vendor, &product);
+ free(value);
+
+ if (ret <= 0)
+ return -errno;
+
+ info->vendor = vendor;
+ info->product = product;
+
+ return 0;
+#else
+#warning "Missing implementation of drmParseUsbDeviceInfo"
+ return -EINVAL;
+#endif
+}
+
+static int drmProcessUsbDevice(drmDevicePtr *device, const char *node,
+ int node_type, int maj, int min,
+ bool fetch_deviceinfo, uint32_t flags)
+{
+ drmDevicePtr dev;
+ char *ptr;
+ int ret;
+
+ dev = drmDeviceAlloc(node_type, node, sizeof(drmUsbBusInfo),
+ sizeof(drmUsbDeviceInfo), &ptr);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->bustype = DRM_BUS_USB;
+
+ dev->businfo.usb = (drmUsbBusInfoPtr)ptr;
+
+ ret = drmParseUsbBusInfo(maj, min, dev->businfo.usb);
+ if (ret < 0)
+ goto free_device;
+
+ if (fetch_deviceinfo) {
+ ptr += sizeof(drmUsbBusInfo);
+ dev->deviceinfo.usb = (drmUsbDeviceInfoPtr)ptr;
+
+ ret = drmParseUsbDeviceInfo(maj, min, dev->deviceinfo.usb);
+ if (ret < 0)
+ goto free_device;
+ }
+
+ *device = dev;
+
+ return 0;
+
+free_device:
+ free(dev);
+ return ret;
+}
+
+static int drmParseOFBusInfo(int maj, int min, char *fullname)
+{
+#ifdef __linux__
+ char path[PATH_MAX + 1], *name, *tmp_name;
+
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
+
+ name = sysfs_uevent_get(path, "OF_FULLNAME");
+ tmp_name = name;
+ if (!name) {
+ /* If the device lacks OF data, pick the MODALIAS info */
+ name = sysfs_uevent_get(path, "MODALIAS");
+ if (!name)
+ return -ENOENT;
+
+ /* .. and strip the MODALIAS=[platform,usb...]: part. */
+ tmp_name = strrchr(name, ':');
+ if (!tmp_name) {
+ free(name);
+ return -ENOENT;
+ }
+ tmp_name++;
+ }
+
+ strncpy(fullname, tmp_name, DRM_PLATFORM_DEVICE_NAME_LEN);
+ fullname[DRM_PLATFORM_DEVICE_NAME_LEN - 1] = '\0';
+ free(name);
+
+ return 0;
+#else
+#warning "Missing implementation of drmParseOFBusInfo"
+ return -EINVAL;
+#endif
+}
+
+static int drmParseOFDeviceInfo(int maj, int min, char ***compatible)
+{
+#ifdef __linux__
+ char path[PATH_MAX + 1], *value, *tmp_name;
+ unsigned int count, i;
+ int err;
+
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
+
+ value = sysfs_uevent_get(path, "OF_COMPATIBLE_N");
+ if (value) {
+ sscanf(value, "%u", &count);
+ free(value);
+ } else {
+ /* Assume one entry if the device lack OF data */
+ count = 1;
+ }
+
+ *compatible = calloc(count + 1, sizeof(char *));
+ if (!*compatible)
+ return -ENOMEM;
+
+ for (i = 0; i < count; i++) {
+ value = sysfs_uevent_get(path, "OF_COMPATIBLE_%u", i);
+ tmp_name = value;
+ if (!value) {
+ /* If the device lacks OF data, pick the MODALIAS info */
+ value = sysfs_uevent_get(path, "MODALIAS");
+ if (!value) {
+ err = -ENOENT;
+ goto free;
+ }
+
+ /* .. and strip the MODALIAS=[platform,usb...]: part. */
+ tmp_name = strrchr(value, ':');
+ if (!tmp_name) {
+ free(value);
+ return -ENOENT;
+ }
+ tmp_name = strdup(tmp_name + 1);
+ free(value);
+ }
+
+ (*compatible)[i] = tmp_name;
+ }
+
+ return 0;
+
+free:
+ while (i--)
+ free((*compatible)[i]);
+
+ free(*compatible);
+ return err;
+#else
+#warning "Missing implementation of drmParseOFDeviceInfo"
+ return -EINVAL;
+#endif
+}
+
+static int drmProcessPlatformDevice(drmDevicePtr *device,
+ const char *node, int node_type,
+ int maj, int min, bool fetch_deviceinfo,
+ uint32_t flags)
+{
+ drmDevicePtr dev;
+ char *ptr;
+ int ret;
+
+ dev = drmDeviceAlloc(node_type, node, sizeof(drmPlatformBusInfo),
+ sizeof(drmPlatformDeviceInfo), &ptr);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->bustype = DRM_BUS_PLATFORM;
+
+ dev->businfo.platform = (drmPlatformBusInfoPtr)ptr;
+
+ ret = drmParseOFBusInfo(maj, min, dev->businfo.platform->fullname);
+ if (ret < 0)
+ goto free_device;
+
+ if (fetch_deviceinfo) {
+ ptr += sizeof(drmPlatformBusInfo);
+ dev->deviceinfo.platform = (drmPlatformDeviceInfoPtr)ptr;
+
+ ret = drmParseOFDeviceInfo(maj, min, &dev->deviceinfo.platform->compatible);
+ if (ret < 0)
+ goto free_device;
+ }
+
+ *device = dev;
+
+ return 0;
+
+free_device:
+ free(dev);
+ return ret;
+}
+
+static int drmProcessHost1xDevice(drmDevicePtr *device,
+ const char *node, int node_type,
+ int maj, int min, bool fetch_deviceinfo,
+ uint32_t flags)
+{
+ drmDevicePtr dev;
+ char *ptr;
+ int ret;
+
+ dev = drmDeviceAlloc(node_type, node, sizeof(drmHost1xBusInfo),
+ sizeof(drmHost1xDeviceInfo), &ptr);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->bustype = DRM_BUS_HOST1X;
+
+ dev->businfo.host1x = (drmHost1xBusInfoPtr)ptr;
+
+ ret = drmParseOFBusInfo(maj, min, dev->businfo.host1x->fullname);
+ if (ret < 0)
+ goto free_device;
+
+ if (fetch_deviceinfo) {
+ ptr += sizeof(drmHost1xBusInfo);
+ dev->deviceinfo.host1x = (drmHost1xDeviceInfoPtr)ptr;
+
+ ret = drmParseOFDeviceInfo(maj, min, &dev->deviceinfo.host1x->compatible);
+ if (ret < 0)
+ goto free_device;
+ }
+
+ *device = dev;
+
+ return 0;
+
+free_device:
+ free(dev);
return ret;
}
+static int
+process_device(drmDevicePtr *device, const char *d_name,
+ int req_subsystem_type,
+ bool fetch_deviceinfo, uint32_t flags)
+{
+ struct stat sbuf;
+ char node[PATH_MAX + 1];
+ int node_type, subsystem_type;
+ unsigned int maj, min;
+
+ node_type = drmGetNodeType(d_name);
+ if (node_type < 0)
+ return -1;
+
+ snprintf(node, PATH_MAX, "%s/%s", DRM_DIR_NAME, d_name);
+ if (stat(node, &sbuf))
+ return -1;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return -1;
+
+ subsystem_type = drmParseSubsystemType(maj, min);
+ if (req_subsystem_type != -1 && req_subsystem_type != subsystem_type)
+ return -1;
+
+ switch (subsystem_type) {
+ case DRM_BUS_PCI:
+ case DRM_BUS_VIRTIO:
+ return drmProcessPciDevice(device, node, node_type, maj, min,
+ fetch_deviceinfo, flags);
+ case DRM_BUS_USB:
+ return drmProcessUsbDevice(device, node, node_type, maj, min,
+ fetch_deviceinfo, flags);
+ case DRM_BUS_PLATFORM:
+ return drmProcessPlatformDevice(device, node, node_type, maj, min,
+ fetch_deviceinfo, flags);
+ case DRM_BUS_HOST1X:
+ return drmProcessHost1xDevice(device, node, node_type, maj, min,
+ fetch_deviceinfo, flags);
+ default:
+ return -1;
+ }
+}
+
+/* Consider devices located on the same bus as duplicate and fold the respective
+ * entries into a single one.
+ *
+ * Note: this leaves "gaps" in the array, while preserving the length.
+ */
static void drmFoldDuplicatedDevices(drmDevicePtr local_devices[], int count)
{
int node_type, i, j;
for (i = 0; i < count; i++) {
for (j = i + 1; j < count; j++) {
- if (drmCompareBusInfo(local_devices[i], local_devices[j]) == 0) {
+ if (drmDevicesEqual(local_devices[i], local_devices[j])) {
local_devices[i]->available_nodes |= local_devices[j]->available_nodes;
- node_type = log2(local_devices[j]->available_nodes);
+ node_type = log2_int(local_devices[j]->available_nodes);
memcpy(local_devices[i]->nodes[node_type],
local_devices[j]->nodes[node_type], drmGetMaxNodeName());
drmFreeDevice(&local_devices[j]);
}
}
+/* Check that the given flags are valid returning 0 on success */
+static int
+drm_device_validate_flags(uint32_t flags)
+{
+ return (flags & ~DRM_DEVICE_GET_PCI_REVISION);
+}
+
+static bool
+drm_device_has_rdev(drmDevicePtr device, dev_t find_rdev)
+{
+ struct stat sbuf;
+
+ for (int i = 0; i < DRM_NODE_MAX; i++) {
+ if (device->available_nodes & 1 << i) {
+ if (stat(device->nodes[i], &sbuf) == 0 &&
+ sbuf.st_rdev == find_rdev)
+ return true;
+ }
+ }
+ return false;
+}
+
+/*
+ * The kernel drm core has a number of places that assume maximum of
+ * 3x64 devices nodes. That's 64 for each of primary, control and
+ * render nodes. Rounded it up to 256 for simplicity.
+ */
+#define MAX_DRM_NODES 256
+
/**
* Get information about the opened drm device
*
* \param fd file descriptor of the drm device
+ * \param flags feature/behaviour bitmask
* \param device the address of a drmDevicePtr where the information
* will be allocated in stored
*
* \return zero on success, negative error code otherwise.
+ *
+ * \note Unlike drmGetDevice it does not retrieve the pci device revision field
+ * unless the DRM_DEVICE_GET_PCI_REVISION \p flag is set.
*/
-int drmGetDevice(int fd, drmDevicePtr *device)
+drm_public int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device)
{
- drmDevicePtr *local_devices;
+#ifdef __OpenBSD__
+ /*
+ * DRI device nodes on OpenBSD are not in their own directory, they reside
+ * in /dev along with a large number of statically generated /dev nodes.
+ * Avoid stat'ing all of /dev needlessly by implementing this custom path.
+ */
+ drmDevicePtr d;
+ struct stat sbuf;
+ char node[PATH_MAX + 1];
+ const char *dev_name;
+ int node_type, subsystem_type;
+ int maj, min, n, ret;
+
+ if (fd == -1 || device == NULL)
+ return -EINVAL;
+
+ if (fstat(fd, &sbuf))
+ return -errno;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return -EINVAL;
+
+ node_type = drmGetMinorType(maj, min);
+ if (node_type == -1)
+ return -ENODEV;
+
+ dev_name = drmGetDeviceName(node_type);
+ if (!dev_name)
+ return -EINVAL;
+
+ n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min);
+ if (n == -1 || n >= PATH_MAX)
+ return -errno;
+ if (stat(node, &sbuf))
+ return -EINVAL;
+
+ subsystem_type = drmParseSubsystemType(maj, min);
+ if (subsystem_type != DRM_BUS_PCI)
+ return -ENODEV;
+
+ ret = drmProcessPciDevice(&d, node, node_type, maj, min, true, flags);
+ if (ret)
+ return ret;
+
+ *device = d;
+
+ return 0;
+#else
+ drmDevicePtr local_devices[MAX_DRM_NODES];
drmDevicePtr d;
DIR *sysdir;
struct dirent *dent;
struct stat sbuf;
- char node[PATH_MAX + 1];
- int node_type, subsystem_type;
+ int subsystem_type;
int maj, min;
int ret, i, node_count;
- int max_count = 16;
+ dev_t find_rdev;
+
+ if (drm_device_validate_flags(flags))
+ return -EINVAL;
if (fd == -1 || device == NULL)
return -EINVAL;
if (fstat(fd, &sbuf))
return -errno;
+ find_rdev = sbuf.st_rdev;
maj = major(sbuf.st_rdev);
min = minor(sbuf.st_rdev);
- if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode))
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
return -EINVAL;
subsystem_type = drmParseSubsystemType(maj, min);
-
- local_devices = calloc(max_count, sizeof(drmDevicePtr));
- if (local_devices == NULL)
- return -ENOMEM;
+ if (subsystem_type < 0)
+ return subsystem_type;
sysdir = opendir(DRM_DIR_NAME);
- if (!sysdir) {
- ret = -errno;
- goto free_locals;
- }
+ if (!sysdir)
+ return -errno;
i = 0;
while ((dent = readdir(sysdir))) {
- node_type = drmGetNodeType(dent->d_name);
- if (node_type < 0)
- continue;
-
- snprintf(node, PATH_MAX, "%s/%s", DRM_DIR_NAME, dent->d_name);
- if (stat(node, &sbuf))
- continue;
-
- maj = major(sbuf.st_rdev);
- min = minor(sbuf.st_rdev);
-
- if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode))
- continue;
-
- if (drmParseSubsystemType(maj, min) != subsystem_type)
+ ret = process_device(&d, dent->d_name, subsystem_type, true, flags);
+ if (ret)
continue;
- switch (subsystem_type) {
- case DRM_BUS_PCI:
- ret = drmProcessPciDevice(&d, dent->d_name, node, node_type,
- maj, min, true);
- if (ret)
- goto free_devices;
-
+ if (i >= MAX_DRM_NODES) {
+ fprintf(stderr, "More than %d drm nodes detected. "
+ "Please report a bug - that should not happen.\n"
+ "Skipping extra nodes\n", MAX_DRM_NODES);
break;
- default:
- fprintf(stderr, "The subsystem type is not supported yet\n");
- continue;
- }
-
- if (i >= max_count) {
- drmDevicePtr *temp;
-
- max_count += 16;
- temp = realloc(local_devices, max_count * sizeof(drmDevicePtr));
- if (!temp)
- goto free_devices;
- local_devices = temp;
}
-
local_devices[i] = d;
i++;
}
node_count = i;
- /* Fold nodes into a single device if they share the same bus info */
drmFoldDuplicatedDevices(local_devices, node_count);
- *device = local_devices[0];
- for (i = 1; i < node_count && local_devices[i]; i++)
+ *device = NULL;
+
+ for (i = 0; i < node_count; i++) {
+ if (!local_devices[i])
+ continue;
+
+ if (drm_device_has_rdev(local_devices[i], find_rdev))
+ *device = local_devices[i];
+ else
drmFreeDevice(&local_devices[i]);
+ }
closedir(sysdir);
- free(local_devices);
+ if (*device == NULL)
+ return -ENODEV;
return 0;
+#endif
+}
-free_devices:
- drmFreeDevices(local_devices, i);
- closedir(sysdir);
-
-free_locals:
- free(local_devices);
- return ret;
+/**
+ * Get information about the opened drm device
+ *
+ * \param fd file descriptor of the drm device
+ * \param device the address of a drmDevicePtr where the information
+ * will be allocated in stored
+ *
+ * \return zero on success, negative error code otherwise.
+ */
+drm_public int drmGetDevice(int fd, drmDevicePtr *device)
+{
+ return drmGetDevice2(fd, DRM_DEVICE_GET_PCI_REVISION, device);
}
/**
* Get drm devices on the system
*
+ * \param flags feature/behaviour bitmask
* \param devices the array of devices with drmDevicePtr elements
* can be NULL to get the device number first
* \param max_devices the maximum number of devices for the array
* if devices is NULL - total number of devices available on the system,
* alternatively the number of devices stored in devices[], which is
* capped by the max_devices.
+ *
+ * \note Unlike drmGetDevices it does not retrieve the pci device revision field
+ * unless the DRM_DEVICE_GET_PCI_REVISION \p flag is set.
*/
-int drmGetDevices(drmDevicePtr devices[], int max_devices)
+drm_public int drmGetDevices2(uint32_t flags, drmDevicePtr devices[],
+ int max_devices)
{
- drmDevicePtr *local_devices;
+ drmDevicePtr local_devices[MAX_DRM_NODES];
drmDevicePtr device;
DIR *sysdir;
struct dirent *dent;
- struct stat sbuf;
- char node[PATH_MAX + 1];
- int node_type, subsystem_type;
- int maj, min;
int ret, i, node_count, device_count;
- int max_count = 16;
- local_devices = calloc(max_count, sizeof(drmDevicePtr));
- if (local_devices == NULL)
- return -ENOMEM;
+ if (drm_device_validate_flags(flags))
+ return -EINVAL;
sysdir = opendir(DRM_DIR_NAME);
- if (!sysdir) {
- ret = -errno;
- goto free_locals;
- }
+ if (!sysdir)
+ return -errno;
i = 0;
while ((dent = readdir(sysdir))) {
- node_type = drmGetNodeType(dent->d_name);
- if (node_type < 0)
- continue;
-
- snprintf(node, PATH_MAX, "%s/%s", DRM_DIR_NAME, dent->d_name);
- if (stat(node, &sbuf))
- continue;
-
- maj = major(sbuf.st_rdev);
- min = minor(sbuf.st_rdev);
-
- if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode))
- continue;
-
- subsystem_type = drmParseSubsystemType(maj, min);
-
- if (subsystem_type < 0)
+ ret = process_device(&device, dent->d_name, -1, devices != NULL, flags);
+ if (ret)
continue;
- switch (subsystem_type) {
- case DRM_BUS_PCI:
- ret = drmProcessPciDevice(&device, dent->d_name, node, node_type,
- maj, min, devices != NULL);
- if (ret)
- goto free_devices;
-
+ if (i >= MAX_DRM_NODES) {
+ fprintf(stderr, "More than %d drm nodes detected. "
+ "Please report a bug - that should not happen.\n"
+ "Skipping extra nodes\n", MAX_DRM_NODES);
break;
- default:
- fprintf(stderr, "The subsystem type is not supported yet\n");
- continue;
- }
-
- if (i >= max_count) {
- drmDevicePtr *temp;
-
- max_count += 16;
- temp = realloc(local_devices, max_count * sizeof(drmDevicePtr));
- if (!temp)
- goto free_devices;
- local_devices = temp;
}
-
local_devices[i] = device;
i++;
}
node_count = i;
- /* Fold nodes into a single device if they share the same bus info */
drmFoldDuplicatedDevices(local_devices, node_count);
device_count = 0;
- for (i = 0; i < node_count && local_devices[i]; i++) {
+ for (i = 0; i < node_count; i++) {
+ if (!local_devices[i])
+ continue;
+
if ((devices != NULL) && (device_count < max_devices))
devices[device_count] = local_devices[i];
else
}
closedir(sysdir);
- free(local_devices);
return device_count;
+}
-free_devices:
- drmFreeDevices(local_devices, i);
- closedir(sysdir);
+/**
+ * Get drm devices on the system
+ *
+ * \param devices the array of devices with drmDevicePtr elements
+ * can be NULL to get the device number first
+ * \param max_devices the maximum number of devices for the array
+ *
+ * \return on error - negative error code,
+ * if devices is NULL - total number of devices available on the system,
+ * alternatively the number of devices stored in devices[], which is
+ * capped by the max_devices.
+ */
+drm_public int drmGetDevices(drmDevicePtr devices[], int max_devices)
+{
+ return drmGetDevices2(DRM_DEVICE_GET_PCI_REVISION, devices, max_devices);
+}
+
+drm_public char *drmGetDeviceNameFromFd2(int fd)
+{
+#ifdef __linux__
+ struct stat sbuf;
+ char path[PATH_MAX + 1], *value;
+ unsigned int maj, min;
+
+ if (fstat(fd, &sbuf))
+ return NULL;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return NULL;
+
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d", maj, min);
+
+ value = sysfs_uevent_get(path, "DEVNAME");
+ if (!value)
+ return NULL;
+
+ snprintf(path, sizeof(path), "/dev/%s", value);
+ free(value);
+
+ return strdup(path);
+#elif defined(__FreeBSD__)
+ return drmGetDeviceNameFromFd(fd);
+#else
+ struct stat sbuf;
+ char node[PATH_MAX + 1];
+ const char *dev_name;
+ int node_type;
+ int maj, min, n;
+
+ if (fstat(fd, &sbuf))
+ return NULL;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+
+ if (!drmNodeIsDRM(maj, min) || !S_ISCHR(sbuf.st_mode))
+ return NULL;
+
+ node_type = drmGetMinorType(maj, min);
+ if (node_type == -1)
+ return NULL;
+
+ dev_name = drmGetDeviceName(node_type);
+ if (!dev_name)
+ return NULL;
+
+ n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min);
+ if (n == -1 || n >= PATH_MAX)
+ return NULL;
+
+ return strdup(node);
+#endif
+}
+
+drm_public int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle)
+{
+ struct drm_syncobj_create args;
+ int ret;
+
+ memclear(args);
+ args.flags = flags;
+ args.handle = 0;
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_CREATE, &args);
+ if (ret)
+ return ret;
+ *handle = args.handle;
+ return 0;
+}
+
+drm_public int drmSyncobjDestroy(int fd, uint32_t handle)
+{
+ struct drm_syncobj_destroy args;
+
+ memclear(args);
+ args.handle = handle;
+ return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_DESTROY, &args);
+}
+
+drm_public int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd)
+{
+ struct drm_syncobj_handle args;
+ int ret;
+
+ memclear(args);
+ args.fd = -1;
+ args.handle = handle;
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, &args);
+ if (ret)
+ return ret;
+ *obj_fd = args.fd;
+ return 0;
+}
+
+drm_public int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle)
+{
+ struct drm_syncobj_handle args;
+ int ret;
+
+ memclear(args);
+ args.fd = obj_fd;
+ args.handle = 0;
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, &args);
+ if (ret)
+ return ret;
+ *handle = args.handle;
+ return 0;
+}
+
+drm_public int drmSyncobjImportSyncFile(int fd, uint32_t handle,
+ int sync_file_fd)
+{
+ struct drm_syncobj_handle args;
+
+ memclear(args);
+ args.fd = sync_file_fd;
+ args.handle = handle;
+ args.flags = DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE;
+ return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, &args);
+}
+
+drm_public int drmSyncobjExportSyncFile(int fd, uint32_t handle,
+ int *sync_file_fd)
+{
+ struct drm_syncobj_handle args;
+ int ret;
+
+ memclear(args);
+ args.fd = -1;
+ args.handle = handle;
+ args.flags = DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE;
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, &args);
+ if (ret)
+ return ret;
+ *sync_file_fd = args.fd;
+ return 0;
+}
+
+drm_public int drmSyncobjWait(int fd, uint32_t *handles, unsigned num_handles,
+ int64_t timeout_nsec, unsigned flags,
+ uint32_t *first_signaled)
+{
+ struct drm_syncobj_wait args;
+ int ret;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.timeout_nsec = timeout_nsec;
+ args.count_handles = num_handles;
+ args.flags = flags;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_WAIT, &args);
+ if (ret < 0)
+ return -errno;
+
+ if (first_signaled)
+ *first_signaled = args.first_signaled;
+ return ret;
+}
+
+drm_public int drmSyncobjReset(int fd, const uint32_t *handles,
+ uint32_t handle_count)
+{
+ struct drm_syncobj_array args;
+ int ret;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.count_handles = handle_count;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_RESET, &args);
+ return ret;
+}
+
+drm_public int drmSyncobjSignal(int fd, const uint32_t *handles,
+ uint32_t handle_count)
+{
+ struct drm_syncobj_array args;
+ int ret;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.count_handles = handle_count;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_SIGNAL, &args);
+ return ret;
+}
+
+drm_public int drmSyncobjTimelineSignal(int fd, const uint32_t *handles,
+ uint64_t *points, uint32_t handle_count)
+{
+ struct drm_syncobj_timeline_array args;
+ int ret;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.points = (uintptr_t)points;
+ args.count_handles = handle_count;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL, &args);
+ return ret;
+}
+
+drm_public int drmSyncobjTimelineWait(int fd, uint32_t *handles, uint64_t *points,
+ unsigned num_handles,
+ int64_t timeout_nsec, unsigned flags,
+ uint32_t *first_signaled)
+{
+ struct drm_syncobj_timeline_wait args;
+ int ret;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.points = (uintptr_t)points;
+ args.timeout_nsec = timeout_nsec;
+ args.count_handles = num_handles;
+ args.flags = flags;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT, &args);
+ if (ret < 0)
+ return -errno;
+
+ if (first_signaled)
+ *first_signaled = args.first_signaled;
+ return ret;
+}
+
+
+drm_public int drmSyncobjQuery(int fd, uint32_t *handles, uint64_t *points,
+ uint32_t handle_count)
+{
+ struct drm_syncobj_timeline_array args;
+ int ret;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.points = (uintptr_t)points;
+ args.count_handles = handle_count;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_QUERY, &args);
+ if (ret)
+ return ret;
+ return 0;
+}
+
+drm_public int drmSyncobjQuery2(int fd, uint32_t *handles, uint64_t *points,
+ uint32_t handle_count, uint32_t flags)
+{
+ struct drm_syncobj_timeline_array args;
+
+ memclear(args);
+ args.handles = (uintptr_t)handles;
+ args.points = (uintptr_t)points;
+ args.count_handles = handle_count;
+ args.flags = flags;
+
+ return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_QUERY, &args);
+}
+
+
+drm_public int drmSyncobjTransfer(int fd,
+ uint32_t dst_handle, uint64_t dst_point,
+ uint32_t src_handle, uint64_t src_point,
+ uint32_t flags)
+{
+ struct drm_syncobj_transfer args;
+ int ret;
+
+ memclear(args);
+ args.src_handle = src_handle;
+ args.dst_handle = dst_handle;
+ args.src_point = src_point;
+ args.dst_point = dst_point;
+ args.flags = flags;
+
+ ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_TRANSFER, &args);
-free_locals:
- free(local_devices);
return ret;
}