* DEALINGS IN THE SOFTWARE.
*/
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#endif
#include <math.h>
+#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__)
#define DRM_MAJOR 145
#endif
#define DRM_MAJOR 226 /* Linux */
#endif
-#ifdef __OpenBSD__
+#if defined(__OpenBSD__) || defined(__DragonFly__)
struct drm_pciinfo {
uint16_t domain;
uint8_t bus;
static drmServerInfoPtr drm_server_info;
-void drmSetServerInfo(drmServerInfoPtr info)
+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;
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;
return st.st_rdev;
}
-drmHashEntry *drmGetEntry(int fd)
+drm_public drmHashEntry *drmGetEntry(int fd)
{
unsigned long key = drmGetKeyFromFd(fd);
void *value;
*
* \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;
}
#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.
*
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:
+ if (!dev_name)
return -EINVAL;
- };
sprintf(buf, dev_name, DRM_DIR_NAME, minor);
drmMsg("drmOpenDevice: node name is %s\n", buf);
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;
}
#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");
if (fd >= 0)
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.
*/
chmod(buf, devmode);
}
}
- 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");
if (fd >= 0)
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:
+ if (!dev_name)
return -EINVAL;
- };
sprintf(buf, dev_name, DRM_DIR_NAME, minor);
- if ((fd = open(buf, O_RDWR, 0)) >= 0)
+ if ((fd = open(buf, O_RDWR | O_CLOEXEC, 0)) >= 0)
return fd;
return -errno;
}
* 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;
* 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) {
+ 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;
}
-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;
* 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;
* 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;
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;
* \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;
* 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;
return 0;
}
-int drmGetMagic(int fd, drm_magic_t * magic)
+drm_public int drmGetMagic(int fd, drm_magic_t * magic)
{
drm_auth_t auth;
return 0;
}
-int drmAuthMagic(int fd, drm_magic_t magic)
+drm_public int drmAuthMagic(int fd, drm_magic_t magic)
{
drm_auth_t auth;
* 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;
return 0;
}
-int drmRmMap(int fd, drm_handle_t handle)
+drm_public int drmRmMap(int fd, drm_handle_t handle)
{
drm_map_t map;
*
* \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;
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;
* 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;
* \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);
* \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;
* \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;
* 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;
* 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;
* 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;
*
* \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.
* 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;
* 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;
return NULL;
}
-void drmFreeReservedContextList(drm_context_t *pt)
+drm_public void drmFreeReservedContextList(drm_context_t *pt)
{
drmFree(pt);
}
* 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;
return 0;
}
-int drmSwitchToContext(int fd, drm_context_t context)
+drm_public int drmSwitchToContext(int fd, drm_context_t context)
{
drm_ctx_t ctx;
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;
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;
* 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;
return 0;
}
-int drmCreateDrawable(int fd, drm_drawable_t *handle)
+drm_public int drmCreateDrawable(int fd, drm_drawable_t *handle)
{
drm_draw_t draw;
return 0;
}
-int drmDestroyDrawable(int fd, drm_drawable_t handle)
+drm_public int drmDestroyDrawable(int fd, drm_drawable_t handle)
{
drm_draw_t draw;
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;
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.
*
* \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;
* \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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
* 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;
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;
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;
* \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;
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:
* 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;
* 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;
return 0;
}
-int drmFinish(int fd, int context, drmLockFlags flags)
+drm_public int drmFinish(int fd, int context, drmLockFlags flags)
{
drm_lock_t lock;
* 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;
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);
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;
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;
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;
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;
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;
return 0;
}
-int drmGetStats(int fd, drmStatsT *stats)
+drm_public int drmGetStats(int fd, drmStatsT *stats)
{
drm_stats_t s;
unsigned i;
* 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;
* 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;
* 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;
* 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;
* 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;
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;
return fd;
}
-void drmCloseOnce(int fd)
+drm_public void drmCloseOnce(int fd)
{
int i;
}
}
-int drmSetMaster(int fd)
+drm_public int drmSetMaster(int fd)
{
return drmIoctl(fd, DRM_IOCTL_SET_MASTER, NULL);
}
-int drmDropMaster(int fd)
+drm_public int drmDropMaster(int fd)
{
return drmIoctl(fd, DRM_IOCTL_DROP_MASTER, NULL);
}
-char *drmGetDeviceNameFromFd(int fd)
+drm_public int drmIsMaster(int fd)
+{
+ /* 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;
+}
+
+drm_public char *drmGetDeviceNameFromFd(int fd)
{
char name[128];
struct stat sbuf;
return strdup(name);
}
-int drmGetNodeTypeFromFd(int fd)
+static bool drmNodeIsDRM(int maj, int min)
+{
+#ifdef __linux__
+ char path[64];
+ struct stat sbuf;
+
+ snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device/drm",
+ maj, min);
+ return stat(path, &sbuf) == 0;
+#else
+ return maj == DRM_MAJOR;
+#endif
+}
+
+drm_public int drmGetNodeTypeFromFd(int fd)
{
struct stat sbuf;
int maj, min, type;
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)) {
errno = EINVAL;
return -1;
}
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;
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;
{
#ifdef __linux__
DIR *sysdir;
- struct dirent *pent, *ent;
+ struct dirent *ent;
struct stat sbuf;
const char *name = drmGetMinorName(type);
int len;
char dev_name[64], buf[64];
- long name_max;
int maj, min;
if (!name)
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 NULL;
snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/device/drm", maj, min);
if (!sysdir)
return NULL;
- name_max = fpathconf(dirfd(sysdir), _PC_NAME_MAX);
- if (name_max == -1)
- goto out_close_dir;
-
- pent = malloc(offsetof(struct dirent, d_name) + name_max + 1);
- if (pent == NULL)
- goto out_close_dir;
-
- while (readdir_r(sysdir, pent, &ent) == 0 && ent != 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);
- free(pent);
closedir(sysdir);
-
return strdup(dev_name);
}
}
- free(pent);
-
-out_close_dir:
closedir(sysdir);
+ return NULL;
#else
struct stat sbuf;
char buf[PATH_MAX + 1];
- const char *dev_name;
+ const char *dev_name = drmGetDeviceName(type);
unsigned int maj, min;
- int n, base;
+ int n;
if (fstat(fd, &sbuf))
return NULL;
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 NULL;
- 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 NULL;
- };
-
- base = drmGetMinorBase(type);
- if (base < 0)
+ if (!dev_name)
return NULL;
- n = snprintf(buf, sizeof(buf), dev_name, DRM_DIR_NAME, min - base);
+ 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);
}
-char *drmGetRenderDeviceNameFromFd(int fd)
+drm_public char *drmGetRenderDeviceNameFromFd(int fd)
{
return drmGetMinorNameForFD(fd, DRM_NODE_RENDER);
}
}
#endif
+/* Little white lie to avoid major rework of the existing code */
+#define DRM_BUS_VIRTIO 0x10
+
static int drmParseSubsystemType(int maj, int min)
{
#ifdef __linux__
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);
if (!name)
return -EINVAL;
- if (strncmp(name, "/pci", 4) == 0)
- return DRM_BUS_PCI;
-
- if (strncmp(name, "/usb", 4) == 0)
- return DRM_BUS_USB;
-
- if (strncmp(name, "/platform", 9) == 0)
- return DRM_BUS_PLATFORM;
-
- if (strncmp(name, "/host1x", 7) == 0)
- return DRM_BUS_HOST1X;
+ 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;
-#elif defined(__OpenBSD__)
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
return DRM_BUS_PCI;
#else
#warning "Missing implementation of drmParseSubsystemType"
#endif
}
+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;
+}
+
static int drmParsePciBusInfo(int maj, int min, drmPciBusInfoPtr info)
{
#ifdef __linux__
unsigned int domain, bus, dev, func;
- char path[PATH_MAX + 1], *value;
+ char pci_path[PATH_MAX + 1], *value;
int num;
- snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
+ get_pci_path(maj, min, pci_path);
- value = sysfs_uevent_get(path, "PCI_SLOT_NAME");
+ value = sysfs_uevent_get(pci_path, "PCI_SLOT_NAME");
if (!value)
return -ENOENT;
info->func = func;
return 0;
-#elif defined(__OpenBSD__)
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
struct drm_pciinfo pinfo;
int fd, type;
#endif
}
-int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b)
+drm_public int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b)
{
if (a == NULL || b == NULL)
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;
}
drmPciDeviceInfoPtr device,
bool ignore_revision)
{
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
static const char *attrs[] = {
"revision", /* Older kernels are missing the file, so check for it first */
"vendor",
"subsystem_vendor",
"subsystem_device",
};
- char path[PATH_MAX + 1];
+ 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, "/sys/dev/char/%d:%d/device/%s", maj, min,
- attrs[i]);
+ snprintf(path, PATH_MAX, "%s/%s", pci_path, attrs[i]);
fp = fopen(path, "r");
if (!fp)
return -errno;
static int parse_config_sysfs_file(int maj, int min,
drmPciDeviceInfoPtr device)
{
- char path[PATH_MAX + 1];
+ char path[PATH_MAX + 1], pci_path[PATH_MAX + 1];
unsigned char config[64];
int fd, ret;
- snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device/config", maj, min);
+ 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;
return parse_config_sysfs_file(maj, min, device);
return 0;
-#elif defined(__OpenBSD__)
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
struct drm_pciinfo pinfo;
int fd, type;
}
}
-void drmFreeDevice(drmDevicePtr *device)
+drm_public void drmFreeDevice(drmDevicePtr *device)
{
if (device == NULL)
return;
*device = NULL;
}
-void drmFreeDevices(drmDevicePtr devices[], int count)
+drm_public void drmFreeDevices(drmDevicePtr devices[], int count)
{
int i;
return ret;
}
-static int drmParsePlatformBusInfo(int maj, int min, drmPlatformBusInfoPtr info)
+static int drmParseOFBusInfo(int maj, int min, char *fullname)
{
#ifdef __linux__
- char path[PATH_MAX + 1], *name;
+ 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");
- if (!name)
- return -ENOENT;
+ 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(info->fullname, name, DRM_PLATFORM_DEVICE_NAME_LEN);
- info->fullname[DRM_PLATFORM_DEVICE_NAME_LEN - 1] = '\0';
+ 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 drmParsePlatformBusInfo"
+#warning "Missing implementation of drmParseOFBusInfo"
return -EINVAL;
#endif
}
-static int drmParsePlatformDeviceInfo(int maj, int min,
- drmPlatformDeviceInfoPtr info)
+static int drmParseOFDeviceInfo(int maj, int min, char ***compatible)
{
#ifdef __linux__
- char path[PATH_MAX + 1], *value;
+ 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)
- return -ENOENT;
-
- sscanf(value, "%u", &count);
- free(value);
+ if (value) {
+ sscanf(value, "%u", &count);
+ free(value);
+ } else {
+ /* Assume one entry if the device lack OF data */
+ count = 1;
+ }
- info->compatible = calloc(count + 1, sizeof(*info->compatible));
- if (!info->compatible)
+ *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) {
- err = -ENOENT;
- goto free;
+ /* 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);
}
- info->compatible[i] = value;
+ (*compatible)[i] = tmp_name;
}
return 0;
free:
while (i--)
- free(info->compatible[i]);
+ free((*compatible)[i]);
- free(info->compatible);
+ free(*compatible);
return err;
#else
-#warning "Missing implementation of drmParsePlatformDeviceInfo"
+#warning "Missing implementation of drmParseOFDeviceInfo"
return -EINVAL;
#endif
}
dev->businfo.platform = (drmPlatformBusInfoPtr)ptr;
- ret = drmParsePlatformBusInfo(maj, min, dev->businfo.platform);
+ ret = drmParseOFBusInfo(maj, min, dev->businfo.platform->fullname);
if (ret < 0)
goto free_device;
ptr += sizeof(drmPlatformBusInfo);
dev->deviceinfo.platform = (drmPlatformDeviceInfoPtr)ptr;
- ret = drmParsePlatformDeviceInfo(maj, min, dev->deviceinfo.platform);
+ ret = drmParseOFDeviceInfo(maj, min, &dev->deviceinfo.platform->compatible);
if (ret < 0)
goto free_device;
}
return ret;
}
-static int drmParseHost1xBusInfo(int maj, int min, drmHost1xBusInfoPtr info)
-{
-#ifdef __linux__
- char path[PATH_MAX + 1], *name;
-
- snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min);
-
- name = sysfs_uevent_get(path, "OF_FULLNAME");
- if (!name)
- return -ENOENT;
-
- strncpy(info->fullname, name, DRM_HOST1X_DEVICE_NAME_LEN);
- info->fullname[DRM_HOST1X_DEVICE_NAME_LEN - 1] = '\0';
- free(name);
-
- return 0;
-#else
-#warning "Missing implementation of drmParseHost1xBusInfo"
- return -EINVAL;
-#endif
-}
-
-static int drmParseHost1xDeviceInfo(int maj, int min,
- drmHost1xDeviceInfoPtr info)
-{
-#ifdef __linux__
- char path[PATH_MAX + 1], *value;
- 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)
- return -ENOENT;
-
- sscanf(value, "%u", &count);
- free(value);
-
- info->compatible = calloc(count + 1, sizeof(*info->compatible));
- if (!info->compatible)
- return -ENOMEM;
-
- for (i = 0; i < count; i++) {
- value = sysfs_uevent_get(path, "OF_COMPATIBLE_%u", i);
- if (!value) {
- err = -ENOENT;
- goto free;
- }
-
- info->compatible[i] = value;
- }
-
- return 0;
-
-free:
- while (i--)
- free(info->compatible[i]);
-
- free(info->compatible);
- return err;
-#else
-#warning "Missing implementation of drmParseHost1xDeviceInfo"
- return -EINVAL;
-#endif
-}
-
static int drmProcessHost1xDevice(drmDevicePtr *device,
const char *node, int node_type,
int maj, int min, bool fetch_deviceinfo,
dev->businfo.host1x = (drmHost1xBusInfoPtr)ptr;
- ret = drmParseHost1xBusInfo(maj, min, dev->businfo.host1x);
+ ret = drmParseOFBusInfo(maj, min, dev->businfo.host1x->fullname);
if (ret < 0)
goto free_device;
ptr += sizeof(drmHost1xBusInfo);
dev->deviceinfo.host1x = (drmHost1xDeviceInfoPtr)ptr;
- ret = drmParseHost1xDeviceInfo(maj, min, dev->deviceinfo.host1x);
+ ret = drmParseOFDeviceInfo(maj, min, &dev->deviceinfo.host1x->compatible);
if (ret < 0)
goto free_device;
}
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.
*
for (i = 0; i < count; i++) {
for (j = i + 1; j < count; j++) {
- if (drmCompareDevices(local_devices[i], local_devices[j])) {
+ 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);
memcpy(local_devices[i]->nodes[node_type],
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
*
* \note Unlike drmGetDevice it does not retrieve the pci device revision field
* unless the DRM_DEVICE_GET_PCI_REVISION \p flag is set.
*/
-int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device)
+drm_public int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device)
{
#ifdef __OpenBSD__
/*
char node[PATH_MAX + 1];
const char *dev_name;
int node_type, subsystem_type;
- int maj, min, n, ret, base;
+ int maj, min, n, ret;
if (fd == -1 || device == NULL)
return -EINVAL;
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;
node_type = drmGetMinorType(min);
if (node_type == -1)
return -ENODEV;
- switch (node_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;
- };
-
- base = drmGetMinorBase(node_type);
- if (base < 0)
+ dev_name = drmGetDeviceName(node_type);
+ if (!dev_name)
return -EINVAL;
- n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min - base);
+ n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min);
if (n == -1 || n >= PATH_MAX)
return -errno;
if (stat(node, &sbuf))
return 0;
#else
- drmDevicePtr *local_devices;
+ 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))
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, node, node_type, maj, min, true, flags);
- if (ret)
- continue;
-
+ 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;
-
- case DRM_BUS_USB:
- ret = drmProcessUsbDevice(&d, node, node_type, maj, min, true, flags);
- if (ret)
- continue;
-
- break;
-
- case DRM_BUS_PLATFORM:
- ret = drmProcessPlatformDevice(&d, node, node_type, maj, min, true, flags);
- if (ret)
- continue;
-
- break;
-
- case DRM_BUS_HOST1X:
- ret = drmProcessHost1xDevice(&d, node, node_type, maj, min, true, flags);
- if (ret)
- continue;
-
- break;
-
- default:
- 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;
- }
-
- /* store target at local_devices[0] for ease to use below */
- if (find_rdev == sbuf.st_rdev && i) {
- local_devices[i] = local_devices[0];
- local_devices[0] = d;
}
- else
- local_devices[i] = d;
+ local_devices[i] = d;
i++;
}
node_count = i;
drmFoldDuplicatedDevices(local_devices, node_count);
- *device = local_devices[0];
- drmFreeDevices(&local_devices[1], node_count - 1);
+ *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;
-
-free_devices:
- drmFreeDevices(local_devices, i);
- closedir(sysdir);
-
-free_locals:
- free(local_devices);
- return ret;
#endif
}
*
* \return zero on success, negative error code otherwise.
*/
-int drmGetDevice(int fd, drmDevicePtr *device)
+drm_public int drmGetDevice(int fd, drmDevicePtr *device)
{
return drmGetDevice2(fd, DRM_DEVICE_GET_PCI_REVISION, device);
}
* \note Unlike drmGetDevices it does not retrieve the pci device revision field
* unless the DRM_DEVICE_GET_PCI_REVISION \p flag is set.
*/
-int drmGetDevices2(uint32_t flags, 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;
if (drm_device_validate_flags(flags))
return -EINVAL;
- local_devices = calloc(max_count, sizeof(drmDevicePtr));
- if (local_devices == NULL)
- return -ENOMEM;
-
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, node, node_type,
- maj, min, devices != NULL, flags);
- if (ret)
- continue;
-
+ 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;
-
- case DRM_BUS_USB:
- ret = drmProcessUsbDevice(&device, node, node_type, maj, min,
- devices != NULL, flags);
- if (ret)
- goto free_devices;
-
- break;
-
- case DRM_BUS_PLATFORM:
- ret = drmProcessPlatformDevice(&device, node, node_type, maj, min,
- devices != NULL, flags);
- if (ret)
- goto free_devices;
-
- break;
-
- case DRM_BUS_HOST1X:
- ret = drmProcessHost1xDevice(&device, node, node_type, maj, min,
- devices != NULL, flags);
- if (ret)
- goto free_devices;
-
- break;
-
- default:
- 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++;
}
}
closedir(sysdir);
- free(local_devices);
return device_count;
-
-free_devices:
- drmFreeDevices(local_devices, i);
- closedir(sysdir);
-
-free_locals:
- free(local_devices);
- return ret;
}
/**
* alternatively the number of devices stored in devices[], which is
* capped by the max_devices.
*/
-int drmGetDevices(drmDevicePtr devices[], int max_devices)
+drm_public int drmGetDevices(drmDevicePtr devices[], int max_devices)
{
return drmGetDevices2(DRM_DEVICE_GET_PCI_REVISION, devices, max_devices);
}
-char *drmGetDeviceNameFromFd2(int fd)
+drm_public char *drmGetDeviceNameFromFd2(int fd)
{
#ifdef __linux__
struct stat sbuf;
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 NULL;
snprintf(path, sizeof(path), "/sys/dev/char/%d:%d", maj, min);
char node[PATH_MAX + 1];
const char *dev_name;
int node_type;
- int maj, min, n, base;
+ int maj, min, n;
if (fstat(fd, &sbuf))
return NULL;
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 NULL;
node_type = drmGetMinorType(min);
if (node_type == -1)
return NULL;
- switch (node_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 NULL;
- };
-
- base = drmGetMinorBase(node_type);
- if (base < 0)
+ dev_name = drmGetDeviceName(node_type);
+ if (!dev_name)
return NULL;
- n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min - base);
+ 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);
+
+ return ret;
+}
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