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-rw-r--r--nouveau/nouveau.c887
1 files changed, 887 insertions, 0 deletions
diff --git a/nouveau/nouveau.c b/nouveau/nouveau.c
new file mode 100644
index 0000000..7b4efde
--- /dev/null
+++ b/nouveau/nouveau.c
@@ -0,0 +1,887 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <strings.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <xf86drm.h>
+#include <xf86atomic.h>
+#include "libdrm_macros.h"
+#include "libdrm_lists.h"
+#include "nouveau_drm.h"
+
+#include "nouveau.h"
+#include "private.h"
+
+#include "nvif/class.h"
+#include "nvif/cl0080.h"
+#include "nvif/ioctl.h"
+#include "nvif/unpack.h"
+
+drm_private FILE *nouveau_out = NULL;
+drm_private uint32_t nouveau_debug = 0;
+
+static void
+debug_init(void)
+{
+ static bool once = false;
+ char *debug, *out;
+
+ if (once)
+ return;
+ once = true;
+
+ debug = getenv("NOUVEAU_LIBDRM_DEBUG");
+ if (debug) {
+ int n = strtol(debug, NULL, 0);
+ if (n >= 0)
+ nouveau_debug = n;
+
+ }
+
+ nouveau_out = stderr;
+ out = getenv("NOUVEAU_LIBDRM_OUT");
+ if (out) {
+ FILE *fout = fopen(out, "w");
+ if (fout)
+ nouveau_out = fout;
+ }
+}
+
+static int
+nouveau_object_ioctl(struct nouveau_object *obj, void *data, uint32_t size)
+{
+ struct nouveau_drm *drm = nouveau_drm(obj);
+ union {
+ struct nvif_ioctl_v0 v0;
+ } *args = data;
+ uint32_t argc = size;
+ int ret = -ENOSYS;
+
+ if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+ if (!obj->length) {
+ if (obj != &drm->client)
+ args->v0.object = (unsigned long)(void *)obj;
+ else
+ args->v0.object = 0;
+ args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
+ args->v0.route = 0x00;
+ } else {
+ args->v0.route = 0xff;
+ args->v0.token = obj->handle;
+ }
+ } else
+ return ret;
+
+ return drmCommandWriteRead(drm->fd, DRM_NOUVEAU_NVIF, args, argc);
+}
+
+drm_public int
+nouveau_object_mthd(struct nouveau_object *obj,
+ uint32_t mthd, void *data, uint32_t size)
+{
+ struct nouveau_drm *drm = nouveau_drm(obj);
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_mthd_v0 mthd;
+ } *args;
+ uint32_t argc = sizeof(*args) + size;
+ uint8_t stack[128];
+ int ret;
+
+ if (!drm->nvif)
+ return -ENOSYS;
+
+ if (argc > sizeof(stack)) {
+ if (!(args = malloc(argc)))
+ return -ENOMEM;
+ } else {
+ args = (void *)stack;
+ }
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_MTHD;
+ args->mthd.version = 0;
+ args->mthd.method = mthd;
+
+ memcpy(args->mthd.data, data, size);
+ ret = nouveau_object_ioctl(obj, args, argc);
+ memcpy(data, args->mthd.data, size);
+ if (args != (void *)stack)
+ free(args);
+ return ret;
+}
+
+drm_public void
+nouveau_object_sclass_put(struct nouveau_sclass **psclass)
+{
+ free(*psclass);
+ *psclass = NULL;
+}
+
+drm_public int
+nouveau_object_sclass_get(struct nouveau_object *obj,
+ struct nouveau_sclass **psclass)
+{
+ struct nouveau_drm *drm = nouveau_drm(obj);
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_sclass_v0 sclass;
+ } *args = NULL;
+ struct nouveau_sclass *sclass;
+ int ret, cnt = 0, i;
+ uint32_t size;
+
+ if (!drm->nvif)
+ return abi16_sclass(obj, psclass);
+
+ while (1) {
+ size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]);
+ if (!(args = malloc(size)))
+ return -ENOMEM;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_SCLASS;
+ args->sclass.version = 0;
+ args->sclass.count = cnt;
+
+ ret = nouveau_object_ioctl(obj, args, size);
+ if (ret == 0 && args->sclass.count <= cnt)
+ break;
+ cnt = args->sclass.count;
+ free(args);
+ if (ret != 0)
+ return ret;
+ }
+
+ if ((sclass = calloc(args->sclass.count, sizeof(*sclass)))) {
+ for (i = 0; i < args->sclass.count; i++) {
+ sclass[i].oclass = args->sclass.oclass[i].oclass;
+ sclass[i].minver = args->sclass.oclass[i].minver;
+ sclass[i].maxver = args->sclass.oclass[i].maxver;
+ }
+ *psclass = sclass;
+ ret = args->sclass.count;
+ } else {
+ ret = -ENOMEM;
+ }
+
+ free(args);
+ return ret;
+}
+
+drm_public int
+nouveau_object_mclass(struct nouveau_object *obj,
+ const struct nouveau_mclass *mclass)
+{
+ struct nouveau_sclass *sclass;
+ int ret = -ENODEV;
+ int cnt, i, j;
+
+ cnt = nouveau_object_sclass_get(obj, &sclass);
+ if (cnt < 0)
+ return cnt;
+
+ for (i = 0; ret < 0 && mclass[i].oclass; i++) {
+ for (j = 0; j < cnt; j++) {
+ if (mclass[i].oclass == sclass[j].oclass &&
+ mclass[i].version >= sclass[j].minver &&
+ mclass[i].version <= sclass[j].maxver) {
+ ret = i;
+ break;
+ }
+ }
+ }
+
+ nouveau_object_sclass_put(&sclass);
+ return ret;
+}
+
+static void
+nouveau_object_fini(struct nouveau_object *obj)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_del del;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_DEL,
+ };
+
+ if (obj->data) {
+ abi16_delete(obj);
+ free(obj->data);
+ obj->data = NULL;
+ return;
+ }
+
+ nouveau_object_ioctl(obj, &args, sizeof(args));
+}
+
+static int
+nouveau_object_init(struct nouveau_object *parent, uint32_t handle,
+ int32_t oclass, void *data, uint32_t size,
+ struct nouveau_object *obj)
+{
+ struct nouveau_drm *drm = nouveau_drm(parent);
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_new_v0 new;
+ } *args;
+ uint32_t argc = sizeof(*args) + size;
+ int (*func)(struct nouveau_object *);
+ int ret = -ENOSYS;
+
+ obj->parent = parent;
+ obj->handle = handle;
+ obj->oclass = oclass;
+ obj->length = 0;
+ obj->data = NULL;
+
+ if (!abi16_object(obj, &func) && drm->nvif) {
+ if (!(args = malloc(argc)))
+ return -ENOMEM;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_NEW;
+ args->new.version = 0;
+ args->new.route = NVIF_IOCTL_V0_ROUTE_NVIF;
+ args->new.token = (unsigned long)(void *)obj;
+ args->new.object = (unsigned long)(void *)obj;
+ args->new.handle = handle;
+ args->new.oclass = oclass;
+ memcpy(args->new.data, data, size);
+ ret = nouveau_object_ioctl(parent, args, argc);
+ memcpy(data, args->new.data, size);
+ free(args);
+ } else
+ if (func) {
+ obj->length = size ? size : sizeof(struct nouveau_object *);
+ if (!(obj->data = malloc(obj->length)))
+ return -ENOMEM;
+ if (data)
+ memcpy(obj->data, data, obj->length);
+ *(struct nouveau_object **)obj->data = obj;
+
+ ret = func(obj);
+ }
+
+ if (ret) {
+ nouveau_object_fini(obj);
+ return ret;
+ }
+
+ return 0;
+}
+
+drm_public int
+nouveau_object_new(struct nouveau_object *parent, uint64_t handle,
+ uint32_t oclass, void *data, uint32_t length,
+ struct nouveau_object **pobj)
+{
+ struct nouveau_object *obj;
+ int ret;
+
+ if (!(obj = malloc(sizeof(*obj))))
+ return -ENOMEM;
+
+ ret = nouveau_object_init(parent, handle, oclass, data, length, obj);
+ if (ret) {
+ free(obj);
+ return ret;
+ }
+
+ *pobj = obj;
+ return 0;
+}
+
+drm_public void
+nouveau_object_del(struct nouveau_object **pobj)
+{
+ struct nouveau_object *obj = *pobj;
+ if (obj) {
+ nouveau_object_fini(obj);
+ free(obj);
+ *pobj = NULL;
+ }
+}
+
+drm_public void
+nouveau_drm_del(struct nouveau_drm **pdrm)
+{
+ free(*pdrm);
+ *pdrm = NULL;
+}
+
+drm_public int
+nouveau_drm_new(int fd, struct nouveau_drm **pdrm)
+{
+ struct nouveau_drm *drm;
+ drmVersionPtr ver;
+
+ debug_init();
+
+ if (!(drm = calloc(1, sizeof(*drm))))
+ return -ENOMEM;
+ drm->fd = fd;
+
+ if (!(ver = drmGetVersion(fd))) {
+ nouveau_drm_del(&drm);
+ return -EINVAL;
+ }
+ *pdrm = drm;
+
+ drm->version = (ver->version_major << 24) |
+ (ver->version_minor << 8) |
+ ver->version_patchlevel;
+ drm->nvif = (drm->version >= 0x01000301);
+ drmFreeVersion(ver);
+ return 0;
+}
+
+/* this is the old libdrm's version of nouveau_device_wrap(), the symbol
+ * is kept here to prevent AIGLX from crashing if the DDX is linked against
+ * the new libdrm, but the DRI driver against the old
+ */
+drm_public int
+nouveau_device_open_existing(struct nouveau_device **pdev, int close, int fd,
+ drm_context_t ctx)
+{
+ return -EACCES;
+}
+
+drm_public int
+nouveau_device_new(struct nouveau_object *parent, int32_t oclass,
+ void *data, uint32_t size, struct nouveau_device **pdev)
+{
+ struct nv_device_info_v0 info = {};
+ union {
+ struct nv_device_v0 v0;
+ } *args = data;
+ uint32_t argc = size;
+ struct nouveau_drm *drm = nouveau_drm(parent);
+ struct nouveau_device_priv *nvdev;
+ struct nouveau_device *dev;
+ uint64_t v;
+ char *tmp;
+ int ret = -ENOSYS;
+
+ if (oclass != NV_DEVICE ||
+ nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))
+ return ret;
+
+ if (!(nvdev = calloc(1, sizeof(*nvdev))))
+ return -ENOMEM;
+ dev = *pdev = &nvdev->base;
+ dev->fd = -1;
+
+ if (drm->nvif) {
+ ret = nouveau_object_init(parent, 0, oclass, args, argc,
+ &dev->object);
+ if (ret)
+ goto done;
+
+ info.version = 0;
+
+ ret = nouveau_object_mthd(&dev->object, NV_DEVICE_V0_INFO,
+ &info, sizeof(info));
+ if (ret)
+ goto done;
+
+ nvdev->base.chipset = info.chipset;
+ nvdev->have_bo_usage = true;
+ } else
+ if (args->v0.device == ~0ULL) {
+ nvdev->base.object.parent = &drm->client;
+ nvdev->base.object.handle = ~0ULL;
+ nvdev->base.object.oclass = NOUVEAU_DEVICE_CLASS;
+ nvdev->base.object.length = ~0;
+
+ ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_CHIPSET_ID, &v);
+ if (ret)
+ goto done;
+ nvdev->base.chipset = v;
+
+ ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_HAS_BO_USAGE, &v);
+ if (ret == 0)
+ nvdev->have_bo_usage = (v != 0);
+ } else
+ return -ENOSYS;
+
+ ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_FB_SIZE, &v);
+ if (ret)
+ goto done;
+ nvdev->base.vram_size = v;
+
+ ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_AGP_SIZE, &v);
+ if (ret)
+ goto done;
+ nvdev->base.gart_size = v;
+
+ tmp = getenv("NOUVEAU_LIBDRM_VRAM_LIMIT_PERCENT");
+ if (tmp)
+ nvdev->vram_limit_percent = atoi(tmp);
+ else
+ nvdev->vram_limit_percent = 80;
+
+ nvdev->base.vram_limit =
+ (nvdev->base.vram_size * nvdev->vram_limit_percent) / 100;
+
+ tmp = getenv("NOUVEAU_LIBDRM_GART_LIMIT_PERCENT");
+ if (tmp)
+ nvdev->gart_limit_percent = atoi(tmp);
+ else
+ nvdev->gart_limit_percent = 80;
+
+ nvdev->base.gart_limit =
+ (nvdev->base.gart_size * nvdev->gart_limit_percent) / 100;
+
+ ret = pthread_mutex_init(&nvdev->lock, NULL);
+ DRMINITLISTHEAD(&nvdev->bo_list);
+done:
+ if (ret)
+ nouveau_device_del(pdev);
+ return ret;
+}
+
+drm_public int
+nouveau_device_wrap(int fd, int close, struct nouveau_device **pdev)
+{
+ struct nouveau_drm *drm;
+ struct nouveau_device_priv *nvdev;
+ int ret;
+
+ ret = nouveau_drm_new(fd, &drm);
+ if (ret)
+ return ret;
+ drm->nvif = false;
+
+ ret = nouveau_device_new(&drm->client, NV_DEVICE,
+ &(struct nv_device_v0) {
+ .device = ~0ULL,
+ }, sizeof(struct nv_device_v0), pdev);
+ if (ret) {
+ nouveau_drm_del(&drm);
+ return ret;
+ }
+
+ nvdev = nouveau_device(*pdev);
+ nvdev->base.fd = drm->fd;
+ nvdev->base.drm_version = drm->version;
+ nvdev->close = close;
+ return 0;
+}
+
+drm_public int
+nouveau_device_open(const char *busid, struct nouveau_device **pdev)
+{
+ int ret = -ENODEV, fd = drmOpen("nouveau", busid);
+ if (fd >= 0) {
+ ret = nouveau_device_wrap(fd, 1, pdev);
+ if (ret)
+ drmClose(fd);
+ }
+ return ret;
+}
+
+drm_public void
+nouveau_device_del(struct nouveau_device **pdev)
+{
+ struct nouveau_device_priv *nvdev = nouveau_device(*pdev);
+ if (nvdev) {
+ free(nvdev->client);
+ pthread_mutex_destroy(&nvdev->lock);
+ if (nvdev->base.fd >= 0) {
+ struct nouveau_drm *drm =
+ nouveau_drm(&nvdev->base.object);
+ nouveau_drm_del(&drm);
+ if (nvdev->close)
+ drmClose(nvdev->base.fd);
+ }
+ free(nvdev);
+ *pdev = NULL;
+ }
+}
+
+drm_public int
+nouveau_getparam(struct nouveau_device *dev, uint64_t param, uint64_t *value)
+{
+ struct nouveau_drm *drm = nouveau_drm(&dev->object);
+ struct drm_nouveau_getparam r = { .param = param };
+ int fd = drm->fd, ret =
+ drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &r, sizeof(r));
+ *value = r.value;
+ return ret;
+}
+
+drm_public int
+nouveau_setparam(struct nouveau_device *dev, uint64_t param, uint64_t value)
+{
+ struct nouveau_drm *drm = nouveau_drm(&dev->object);
+ struct drm_nouveau_setparam r = { .param = param, .value = value };
+ return drmCommandWrite(drm->fd, DRM_NOUVEAU_SETPARAM, &r, sizeof(r));
+}
+
+drm_public int
+nouveau_client_new(struct nouveau_device *dev, struct nouveau_client **pclient)
+{
+ struct nouveau_device_priv *nvdev = nouveau_device(dev);
+ struct nouveau_client_priv *pcli;
+ int id = 0, i, ret = -ENOMEM;
+ uint32_t *clients;
+
+ pthread_mutex_lock(&nvdev->lock);
+
+ for (i = 0; i < nvdev->nr_client; i++) {
+ id = ffs(nvdev->client[i]) - 1;
+ if (id >= 0)
+ goto out;
+ }
+
+ clients = realloc(nvdev->client, sizeof(uint32_t) * (i + 1));
+ if (!clients)
+ goto unlock;
+ nvdev->client = clients;
+ nvdev->client[i] = 0;
+ nvdev->nr_client++;
+
+out:
+ pcli = calloc(1, sizeof(*pcli));
+ if (pcli) {
+ nvdev->client[i] |= (1 << id);
+ pcli->base.device = dev;
+ pcli->base.id = (i * 32) + id;
+ ret = 0;
+ }
+
+ *pclient = &pcli->base;
+
+unlock:
+ pthread_mutex_unlock(&nvdev->lock);
+ return ret;
+}
+
+drm_public void
+nouveau_client_del(struct nouveau_client **pclient)
+{
+ struct nouveau_client_priv *pcli = nouveau_client(*pclient);
+ struct nouveau_device_priv *nvdev;
+ if (pcli) {
+ int id = pcli->base.id;
+ nvdev = nouveau_device(pcli->base.device);
+ pthread_mutex_lock(&nvdev->lock);
+ nvdev->client[id / 32] &= ~(1 << (id % 32));
+ pthread_mutex_unlock(&nvdev->lock);
+ free(pcli->kref);
+ free(pcli);
+ }
+}
+
+static void
+nouveau_bo_del(struct nouveau_bo *bo)
+{
+ struct nouveau_drm *drm = nouveau_drm(&bo->device->object);
+ struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
+ struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
+
+ if (nvbo->head.next) {
+ pthread_mutex_lock(&nvdev->lock);
+ if (atomic_read(&nvbo->refcnt) == 0) {
+ DRMLISTDEL(&nvbo->head);
+ /*
+ * This bo has to be closed with the lock held because
+ * gem handles are not refcounted. If a shared bo is
+ * closed and re-opened in another thread a race
+ * against DRM_IOCTL_GEM_OPEN or drmPrimeFDToHandle
+ * might cause the bo to be closed accidentally while
+ * re-importing.
+ */
+ drmCloseBufferHandle(drm->fd, bo->handle);
+ }
+ pthread_mutex_unlock(&nvdev->lock);
+ } else {
+ drmCloseBufferHandle(drm->fd, bo->handle);
+ }
+ if (bo->map)
+ drm_munmap(bo->map, bo->size);
+ free(nvbo);
+}
+
+drm_public int
+nouveau_bo_new(struct nouveau_device *dev, uint32_t flags, uint32_t align,
+ uint64_t size, union nouveau_bo_config *config,
+ struct nouveau_bo **pbo)
+{
+ struct nouveau_bo_priv *nvbo = calloc(1, sizeof(*nvbo));
+ struct nouveau_bo *bo = &nvbo->base;
+ int ret;
+
+ if (!nvbo)
+ return -ENOMEM;
+ atomic_set(&nvbo->refcnt, 1);
+ bo->device = dev;
+ bo->flags = flags;
+ bo->size = size;
+
+ ret = abi16_bo_init(bo, align, config);
+ if (ret) {
+ free(nvbo);
+ return ret;
+ }
+
+ *pbo = bo;
+ return 0;
+}
+
+static int
+nouveau_bo_wrap_locked(struct nouveau_device *dev, uint32_t handle,
+ struct nouveau_bo **pbo, int name)
+{
+ struct nouveau_drm *drm = nouveau_drm(&dev->object);
+ struct nouveau_device_priv *nvdev = nouveau_device(dev);
+ struct drm_nouveau_gem_info req = { .handle = handle };
+ struct nouveau_bo_priv *nvbo;
+ int ret;
+
+ DRMLISTFOREACHENTRY(nvbo, &nvdev->bo_list, head) {
+ if (nvbo->base.handle == handle) {
+ if (atomic_inc_return(&nvbo->refcnt) == 1) {
+ /*
+ * Uh oh, this bo is dead and someone else
+ * will free it, but because refcnt is
+ * now non-zero fortunately they won't
+ * call the ioctl to close the bo.
+ *
+ * Remove this bo from the list so other
+ * calls to nouveau_bo_wrap_locked will
+ * see our replacement nvbo.
+ */
+ DRMLISTDEL(&nvbo->head);
+ if (!name)
+ name = nvbo->name;
+ break;
+ }
+
+ *pbo = &nvbo->base;
+ return 0;
+ }
+ }
+
+ ret = drmCommandWriteRead(drm->fd, DRM_NOUVEAU_GEM_INFO,
+ &req, sizeof(req));
+ if (ret)
+ return ret;
+
+ nvbo = calloc(1, sizeof(*nvbo));
+ if (nvbo) {
+ atomic_set(&nvbo->refcnt, 1);
+ nvbo->base.device = dev;
+ abi16_bo_info(&nvbo->base, &req);
+ nvbo->name = name;
+ DRMLISTADD(&nvbo->head, &nvdev->bo_list);
+ *pbo = &nvbo->base;
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+static void
+nouveau_bo_make_global(struct nouveau_bo_priv *nvbo)
+{
+ if (!nvbo->head.next) {
+ struct nouveau_device_priv *nvdev = nouveau_device(nvbo->base.device);
+ pthread_mutex_lock(&nvdev->lock);
+ if (!nvbo->head.next)
+ DRMLISTADD(&nvbo->head, &nvdev->bo_list);
+ pthread_mutex_unlock(&nvdev->lock);
+ }
+}
+
+drm_public int
+nouveau_bo_wrap(struct nouveau_device *dev, uint32_t handle,
+ struct nouveau_bo **pbo)
+{
+ struct nouveau_device_priv *nvdev = nouveau_device(dev);
+ int ret;
+ pthread_mutex_lock(&nvdev->lock);
+ ret = nouveau_bo_wrap_locked(dev, handle, pbo, 0);
+ pthread_mutex_unlock(&nvdev->lock);
+ return ret;
+}
+
+drm_public int
+nouveau_bo_name_ref(struct nouveau_device *dev, uint32_t name,
+ struct nouveau_bo **pbo)
+{
+ struct nouveau_drm *drm = nouveau_drm(&dev->object);
+ struct nouveau_device_priv *nvdev = nouveau_device(dev);
+ struct nouveau_bo_priv *nvbo;
+ struct drm_gem_open req = { .name = name };
+ int ret;
+
+ pthread_mutex_lock(&nvdev->lock);
+ DRMLISTFOREACHENTRY(nvbo, &nvdev->bo_list, head) {
+ if (nvbo->name == name) {
+ ret = nouveau_bo_wrap_locked(dev, nvbo->base.handle,
+ pbo, name);
+ pthread_mutex_unlock(&nvdev->lock);
+ return ret;
+ }
+ }
+
+ ret = drmIoctl(drm->fd, DRM_IOCTL_GEM_OPEN, &req);
+ if (ret == 0) {
+ ret = nouveau_bo_wrap_locked(dev, req.handle, pbo, name);
+ }
+
+ pthread_mutex_unlock(&nvdev->lock);
+ return ret;
+}
+
+drm_public int
+nouveau_bo_name_get(struct nouveau_bo *bo, uint32_t *name)
+{
+ struct drm_gem_flink req = { .handle = bo->handle };
+ struct nouveau_drm *drm = nouveau_drm(&bo->device->object);
+ struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
+
+ *name = nvbo->name;
+ if (!*name) {
+ int ret = drmIoctl(drm->fd, DRM_IOCTL_GEM_FLINK, &req);
+
+ if (ret) {
+ *name = 0;
+ return ret;
+ }
+ nvbo->name = *name = req.name;
+
+ nouveau_bo_make_global(nvbo);
+ }
+ return 0;
+}
+
+drm_public void
+nouveau_bo_ref(struct nouveau_bo *bo, struct nouveau_bo **pref)
+{
+ struct nouveau_bo *ref = *pref;
+ if (bo) {
+ atomic_inc(&nouveau_bo(bo)->refcnt);
+ }
+ if (ref) {
+ if (atomic_dec_and_test(&nouveau_bo(ref)->refcnt))
+ nouveau_bo_del(ref);
+ }
+ *pref = bo;
+}
+
+drm_public int
+nouveau_bo_prime_handle_ref(struct nouveau_device *dev, int prime_fd,
+ struct nouveau_bo **bo)
+{
+ struct nouveau_drm *drm = nouveau_drm(&dev->object);
+ struct nouveau_device_priv *nvdev = nouveau_device(dev);
+ int ret;
+ unsigned int handle;
+
+ nouveau_bo_ref(NULL, bo);
+
+ pthread_mutex_lock(&nvdev->lock);
+ ret = drmPrimeFDToHandle(drm->fd, prime_fd, &handle);
+ if (ret == 0) {
+ ret = nouveau_bo_wrap_locked(dev, handle, bo, 0);
+ }
+ pthread_mutex_unlock(&nvdev->lock);
+ return ret;
+}
+
+drm_public int
+nouveau_bo_set_prime(struct nouveau_bo *bo, int *prime_fd)
+{
+ struct nouveau_drm *drm = nouveau_drm(&bo->device->object);
+ struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
+ int ret;
+
+ ret = drmPrimeHandleToFD(drm->fd, nvbo->base.handle, DRM_CLOEXEC, prime_fd);
+ if (ret)
+ return ret;
+
+ nouveau_bo_make_global(nvbo);
+ return 0;
+}
+
+drm_public int
+nouveau_bo_wait(struct nouveau_bo *bo, uint32_t access,
+ struct nouveau_client *client)
+{
+ struct nouveau_drm *drm = nouveau_drm(&bo->device->object);
+ struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
+ struct drm_nouveau_gem_cpu_prep req;
+ struct nouveau_pushbuf *push;
+ int ret = 0;
+
+ if (!(access & NOUVEAU_BO_RDWR))
+ return 0;
+
+ push = cli_push_get(client, bo);
+ if (push && push->channel)
+ nouveau_pushbuf_kick(push, push->channel);
+
+ if (!nvbo->head.next && !(nvbo->access & NOUVEAU_BO_WR) &&
+ !(access & NOUVEAU_BO_WR))
+ return 0;
+
+ req.handle = bo->handle;
+ req.flags = 0;
+ if (access & NOUVEAU_BO_WR)
+ req.flags |= NOUVEAU_GEM_CPU_PREP_WRITE;
+ if (access & NOUVEAU_BO_NOBLOCK)
+ req.flags |= NOUVEAU_GEM_CPU_PREP_NOWAIT;
+
+ ret = drmCommandWrite(drm->fd, DRM_NOUVEAU_GEM_CPU_PREP,
+ &req, sizeof(req));
+ if (ret == 0)
+ nvbo->access = 0;
+ return ret;
+}
+
+drm_public int
+nouveau_bo_map(struct nouveau_bo *bo, uint32_t access,
+ struct nouveau_client *client)
+{
+ struct nouveau_drm *drm = nouveau_drm(&bo->device->object);
+ struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
+ if (bo->map == NULL) {
+ bo->map = drm_mmap(0, bo->size, PROT_READ | PROT_WRITE,
+ MAP_SHARED, drm->fd, nvbo->map_handle);
+ if (bo->map == MAP_FAILED) {
+ bo->map = NULL;
+ return -errno;
+ }
+ }
+ return nouveau_bo_wait(bo, access, client);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-04 12:31:15 +0000