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-rw-r--r--tegra/.gitignore1
-rw-r--r--tegra/Makefile.am23
-rw-r--r--tegra/libdrm_tegra.pc.in11
-rw-r--r--tegra/private.h51
-rw-r--r--tegra/tegra.c248
-rw-r--r--tegra/tegra.h47
6 files changed, 381 insertions, 0 deletions
diff --git a/tegra/.gitignore b/tegra/.gitignore
new file mode 100644
index 00000000..74cfe47a
--- /dev/null
+++ b/tegra/.gitignore
@@ -0,0 +1 @@
+libdrm_tegra.pc
diff --git a/tegra/Makefile.am b/tegra/Makefile.am
new file mode 100644
index 00000000..a6474879
--- /dev/null
+++ b/tegra/Makefile.am
@@ -0,0 +1,23 @@
+AM_CPPFLAGS = \
+ -I$(top_srcdir) \
+ -I$(top_srcdir)/include/drm
+
+AM_CFLAGS = \
+ @PTHREADSTUBS_CFLAGS@ \
+ $(VISIBILITY_CFLAGS) \
+ $(WARN_CFLAGS)
+
+libdrm_tegra_ladir = $(libdir)
+libdrm_tegra_la_LTLIBRARIES = libdrm_tegra.la
+libdrm_tegra_la_LDFLAGS = -version-number 0:0:0 -no-undefined
+libdrm_tegra_la_LIBADD = ../libdrm.la @PTHREADSTUBS_LIBS@
+
+libdrm_tegra_la_SOURCES = \
+ private.h \
+ tegra.c
+
+libdrm_tegraincludedir = ${includedir}/libdrm
+libdrm_tegrainclude_HEADERS = tegra.h
+
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libdrm_tegra.pc
diff --git a/tegra/libdrm_tegra.pc.in b/tegra/libdrm_tegra.pc.in
new file mode 100644
index 00000000..2e06f49c
--- /dev/null
+++ b/tegra/libdrm_tegra.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libdrm_tegra
+Description: Userspace interface to Tegra kernel DRM services
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -ldrm_tegra
+Cflags: -I${includedir} -I${includedir}/libdrm
+Requires.private: libdrm
diff --git a/tegra/private.h b/tegra/private.h
new file mode 100644
index 00000000..9b6bc939
--- /dev/null
+++ b/tegra/private.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __DRM_TEGRA_PRIVATE_H__
+#define __DRM_TEGRA_PRIVATE_H__ 1
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <libdrm.h>
+#include <xf86atomic.h>
+
+#include "tegra.h"
+
+struct drm_tegra {
+ bool close;
+ int fd;
+};
+
+struct drm_tegra_bo {
+ struct drm_tegra *drm;
+ uint32_t handle;
+ uint32_t offset;
+ uint32_t flags;
+ uint32_t size;
+ atomic_t ref;
+ void *map;
+};
+
+#endif /* __DRM_TEGRA_PRIVATE_H__ */
diff --git a/tegra/tegra.c b/tegra/tegra.c
new file mode 100644
index 00000000..ec5bf76c
--- /dev/null
+++ b/tegra/tegra.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mman.h>
+
+#include <xf86drm.h>
+
+#include <tegra_drm.h>
+
+#include "private.h"
+
+static void drm_tegra_bo_free(struct drm_tegra_bo *bo)
+{
+ struct drm_tegra *drm = bo->drm;
+ struct drm_gem_close args;
+
+ if (bo->map)
+ munmap(bo->map, bo->size);
+
+ memset(&args, 0, sizeof(args));
+ args.handle = bo->handle;
+
+ drmIoctl(drm->fd, DRM_IOCTL_GEM_CLOSE, &args);
+
+ free(bo);
+}
+
+static int drm_tegra_wrap(struct drm_tegra **drmp, int fd, bool close)
+{
+ struct drm_tegra *drm;
+
+ if (fd < 0 || !drmp)
+ return -EINVAL;
+
+ drm = calloc(1, sizeof(*drm));
+ if (!drm)
+ return -ENOMEM;
+
+ drm->close = close;
+ drm->fd = fd;
+
+ *drmp = drm;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_new(struct drm_tegra **drmp, int fd)
+{
+ bool supported = false;
+ drmVersionPtr version;
+
+ version = drmGetVersion(fd);
+ if (!version)
+ return -ENOMEM;
+
+ if (!strncmp(version->name, "tegra", version->name_len))
+ supported = true;
+
+ drmFreeVersion(version);
+
+ if (!supported)
+ return -ENOTSUP;
+
+ return drm_tegra_wrap(drmp, fd, false);
+}
+
+drm_public
+void drm_tegra_close(struct drm_tegra *drm)
+{
+ if (!drm)
+ return;
+
+ if (drm->close)
+ close(drm->fd);
+
+ free(drm);
+}
+
+drm_public
+int drm_tegra_bo_new(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t flags, uint32_t size)
+{
+ struct drm_tegra_gem_create args;
+ struct drm_tegra_bo *bo;
+ int err;
+
+ if (!drm || size == 0 || !bop)
+ return -EINVAL;
+
+ bo = calloc(1, sizeof(*bo));
+ if (!bo)
+ return -ENOMEM;
+
+ atomic_set(&bo->ref, 1);
+ bo->flags = flags;
+ bo->size = size;
+ bo->drm = drm;
+
+ memset(&args, 0, sizeof(args));
+ args.flags = flags;
+ args.size = size;
+
+ err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_CREATE, &args,
+ sizeof(args));
+ if (err < 0) {
+ err = -errno;
+ free(bo);
+ return err;
+ }
+
+ bo->handle = args.handle;
+
+ *bop = bo;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_bo_wrap(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t handle, uint32_t flags, uint32_t size)
+{
+ struct drm_tegra_bo *bo;
+
+ if (!drm || !bop)
+ return -EINVAL;
+
+ bo = calloc(1, sizeof(*bo));
+ if (!bo)
+ return -ENOMEM;
+
+ atomic_set(&bo->ref, 1);
+ bo->handle = handle;
+ bo->flags = flags;
+ bo->size = size;
+ bo->drm = drm;
+
+ *bop = bo;
+
+ return 0;
+}
+
+drm_public
+struct drm_tegra_bo *drm_tegra_bo_ref(struct drm_tegra_bo *bo)
+{
+ if (bo)
+ atomic_inc(&bo->ref);
+
+ return bo;
+}
+
+drm_public
+void drm_tegra_bo_unref(struct drm_tegra_bo *bo)
+{
+ if (bo && atomic_dec_and_test(&bo->ref))
+ drm_tegra_bo_free(bo);
+}
+
+drm_public
+int drm_tegra_bo_get_handle(struct drm_tegra_bo *bo, uint32_t *handle)
+{
+ if (!bo || !handle)
+ return -EINVAL;
+
+ *handle = bo->handle;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr)
+{
+ struct drm_tegra *drm = bo->drm;
+
+ if (!bo->map) {
+ struct drm_tegra_gem_mmap args;
+ int err;
+
+ memset(&args, 0, sizeof(args));
+ args.handle = bo->handle;
+
+ err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_MMAP, &args,
+ sizeof(args));
+ if (err < 0)
+ return -errno;
+
+ bo->offset = args.offset;
+
+ bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ drm->fd, bo->offset);
+ if (bo->map == MAP_FAILED) {
+ bo->map = NULL;
+ return -errno;
+ }
+ }
+
+ if (ptr)
+ *ptr = bo->map;
+
+ return 0;
+}
+
+drm_public
+int drm_tegra_bo_unmap(struct drm_tegra_bo *bo)
+{
+ if (!bo)
+ return -EINVAL;
+
+ if (!bo->map)
+ return 0;
+
+ if (munmap(bo->map, bo->size))
+ return -errno;
+
+ bo->map = NULL;
+
+ return 0;
+}
diff --git a/tegra/tegra.h b/tegra/tegra.h
new file mode 100644
index 00000000..ed29505d
--- /dev/null
+++ b/tegra/tegra.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright © 2012, 2013 Thierry Reding
+ * Copyright © 2013 Erik Faye-Lund
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __DRM_TEGRA_H__
+#define __DRM_TEGRA_H__ 1
+
+#include <stdint.h>
+#include <stdlib.h>
+
+struct drm_tegra_bo;
+struct drm_tegra;
+
+int drm_tegra_new(struct drm_tegra **drmp, int fd);
+void drm_tegra_close(struct drm_tegra *drm);
+
+int drm_tegra_bo_new(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t flags, uint32_t size);
+int drm_tegra_bo_wrap(struct drm_tegra_bo **bop, struct drm_tegra *drm,
+ uint32_t handle, uint32_t flags, uint32_t size);
+struct drm_tegra_bo *drm_tegra_bo_ref(struct drm_tegra_bo *bo);
+void drm_tegra_bo_unref(struct drm_tegra_bo *bo);
+int drm_tegra_bo_get_handle(struct drm_tegra_bo *bo, uint32_t *handle);
+int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr);
+int drm_tegra_bo_unmap(struct drm_tegra_bo *bo);
+
+#endif /* __DRM_TEGRA_H__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 10:06:29 +0000