Export drmDevicesEqual

[android-x86/external-libdrm.git] / freedreno / freedreno_device.c

diff --git a/freedreno/freedreno_device.c b/freedreno/freedreno_device.c
index 0a9ef9f..12b95fd 100644 (file)
--- a/freedreno/freedreno_device.c
+++ b/freedreno/freedreno_device.c
@@ -26,20 +26,123 @@
  *    Rob Clark <robclark@freedesktop.org>
  */
 
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
 #include "freedreno_drmif.h"
 #include "freedreno_priv.h"
 
+static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER;
+
+struct fd_device * kgsl_device_new(int fd);
+struct fd_device * msm_device_new(int fd);
+
 struct fd_device * fd_device_new(int fd)
 {
-       struct fd_device *dev = calloc(1, sizeof(*dev));
+       struct fd_device *dev;
+       drmVersionPtr version;
+
+       /* figure out if we are kgsl or msm drm driver: */
+       version = drmGetVersion(fd);
+       if (!version) {
+               ERROR_MSG("cannot get version: %s", strerror(errno));
+               return NULL;
+       }
+
+       if (!strcmp(version->name, "msm")) {
+               DEBUG_MSG("msm DRM device");
+               if (version->version_major != 1) {
+                       ERROR_MSG("unsupported version: %u.%u.%u", version->version_major,
+                               version->version_minor, version->version_patchlevel);
+                       dev = NULL;
+                       goto out;
+               }
+
+               dev = msm_device_new(fd);
+               dev->version = version->version_minor;
+#ifdef HAVE_FREEDRENO_KGSL
+       } else if (!strcmp(version->name, "kgsl")) {
+               DEBUG_MSG("kgsl DRM device");
+               dev = kgsl_device_new(fd);
+#endif
+       } else {
+               ERROR_MSG("unknown device: %s", version->name);
+               dev = NULL;
+       }
+
+out:
+       drmFreeVersion(version);
+
        if (!dev)
                return NULL;
+
+       atomic_set(&dev->refcnt, 1);
        dev->fd = fd;
+       dev->handle_table = drmHashCreate();
+       dev->name_table = drmHashCreate();
+       fd_bo_cache_init(&dev->bo_cache, FALSE);
+
+       return dev;
+}
+
+/* like fd_device_new() but creates it's own private dup() of the fd
+ * which is close()d when the device is finalized.
+ */
+struct fd_device * fd_device_new_dup(int fd)
+{
+       int dup_fd = dup(fd);
+       struct fd_device *dev = fd_device_new(dup_fd);
+       if (dev)
+               dev->closefd = 1;
+       else
+               close(dup_fd);
+       return dev;
+}
+
+struct fd_device * fd_device_ref(struct fd_device *dev)
+{
+       atomic_inc(&dev->refcnt);
        return dev;
 }
 
+static void fd_device_del_impl(struct fd_device *dev)
+{
+       int close_fd = dev->closefd ? dev->fd : -1;
+       fd_bo_cache_cleanup(&dev->bo_cache, 0);
+       drmHashDestroy(dev->handle_table);
+       drmHashDestroy(dev->name_table);
+       dev->funcs->destroy(dev);
+       if (close_fd >= 0)
+               close(close_fd);
+}
+
+drm_private void fd_device_del_locked(struct fd_device *dev)
+{
+       if (!atomic_dec_and_test(&dev->refcnt))
+               return;
+       fd_device_del_impl(dev);
+}
+
 void fd_device_del(struct fd_device *dev)
 {
-       free(dev);
+       if (!atomic_dec_and_test(&dev->refcnt))
+               return;
+       pthread_mutex_lock(&table_lock);
+       fd_device_del_impl(dev);
+       pthread_mutex_unlock(&table_lock);
+}
+
+int fd_device_fd(struct fd_device *dev)
+{
+       return dev->fd;
 }
 
+enum fd_version fd_device_version(struct fd_device *dev)
+{
+       return dev->version;
+}