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virglrenderer/src/virglrenderer.c

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/**************************************************************************
*
* Copyright (C) 2014 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*
**************************************************************************/
#include <stdio.h>
#include <time.h>
#include <epoxy/gl.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <sys/mman.h>
#include "pipe/p_state.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "vkr_renderer.h"
#include "vrend_renderer.h"
#include "vrend_winsys.h"
#include "virglrenderer.h"
#include "virglrenderer_hw.h"
#include "virgl_context.h"
#include "virgl_resource.h"
#include "virgl_util.h"
struct global_state {
bool client_initialized;
void *cookie;
int flags;
const struct virgl_renderer_callbacks *cbs;
bool resource_initialized;
bool context_initialized;
bool winsys_initialized;
bool vrend_initialized;
bool vkr_initialized;
};
static struct global_state state;
/* new API - just wrap internal API for now */
static int virgl_renderer_resource_create_internal(struct virgl_renderer_resource_create_args *args,
UNUSED struct iovec *iov, UNUSED uint32_t num_iovs,
void *image)
{
struct virgl_resource *res;
struct pipe_resource *pipe_res;
struct vrend_renderer_resource_create_args vrend_args = { 0 };
if (!state.vrend_initialized)
return EINVAL;
/* do not accept handle 0 */
if (args->handle == 0)
return EINVAL;
vrend_args.target = args->target;
vrend_args.format = args->format;
vrend_args.bind = args->bind;
vrend_args.width = args->width;
vrend_args.height = args->height;
vrend_args.depth = args->depth;
vrend_args.array_size = args->array_size;
vrend_args.nr_samples = args->nr_samples;
vrend_args.last_level = args->last_level;
vrend_args.flags = args->flags;
pipe_res = vrend_renderer_resource_create(&vrend_args, image);
if (!pipe_res)
return EINVAL;
res = virgl_resource_create_from_pipe(args->handle, pipe_res, iov, num_iovs);
if (!res) {
vrend_renderer_resource_destroy((struct vrend_resource *)pipe_res);
return -ENOMEM;
}
res->map_info = vrend_renderer_resource_get_map_info(pipe_res);
return 0;
}
int virgl_renderer_resource_create(struct virgl_renderer_resource_create_args *args,
struct iovec *iov, uint32_t num_iovs)
{
TRACE_FUNC();
return virgl_renderer_resource_create_internal(args, iov, num_iovs, NULL);
}
int virgl_renderer_resource_import_eglimage(struct virgl_renderer_resource_create_args *args, void *image)
{
TRACE_FUNC();
return virgl_renderer_resource_create_internal(args, NULL, 0, image);
}
void virgl_renderer_resource_set_priv(uint32_t res_handle, void *priv)
{
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res)
return;
res->private_data = priv;
}
void *virgl_renderer_resource_get_priv(uint32_t res_handle)
{
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res)
return NULL;
return res->private_data;
}
static bool detach_resource(struct virgl_context *ctx, void *data)
{
struct virgl_resource *res = data;
ctx->detach_resource(ctx, res);
return true;
}
void virgl_renderer_resource_unref(uint32_t res_handle)
{
struct virgl_resource *res = virgl_resource_lookup(res_handle);
struct virgl_context_foreach_args args;
if (!res)
return;
args.callback = detach_resource;
args.data = res;
virgl_context_foreach(&args);
virgl_resource_remove(res->res_id);
}
void virgl_renderer_fill_caps(uint32_t set, uint32_t version,
void *caps)
{
switch (set) {
case VIRGL_RENDERER_CAPSET_VIRGL:
case VIRGL_RENDERER_CAPSET_VIRGL2:
if (state.vrend_initialized)
vrend_renderer_fill_caps(set, version, (union virgl_caps *)caps);
break;
case VIRGL_RENDERER_CAPSET_VENUS:
if (state.vkr_initialized)
vkr_get_capset(caps);
break;
default:
break;
}
}
static void per_context_fence_retire(struct virgl_context *ctx,
uint64_t queue_id,
void *fence_cookie)
{
state.cbs->write_context_fence(state.cookie,
ctx->ctx_id,
queue_id,
fence_cookie);
}
int virgl_renderer_context_create_with_flags(uint32_t ctx_id,
uint32_t ctx_flags,
uint32_t nlen,
const char *name)
{
const enum virgl_renderer_capset capset_id =
ctx_flags & VIRGL_RENDERER_CONTEXT_FLAG_CAPSET_ID_MASK;
struct virgl_context *ctx;
int ret;
TRACE_FUNC();
/* user context id must be greater than 0 */
if (ctx_id == 0)
return EINVAL;
/* unsupported flags */
if (ctx_flags & ~VIRGL_RENDERER_CONTEXT_FLAG_CAPSET_ID_MASK)
return EINVAL;
ctx = virgl_context_lookup(ctx_id);
if (ctx) {
return ctx->capset_id == capset_id ? 0 : EINVAL;
}
switch (capset_id) {
case VIRGL_RENDERER_CAPSET_VIRGL:
case VIRGL_RENDERER_CAPSET_VIRGL2:
if (!state.vrend_initialized)
return EINVAL;
ctx = vrend_renderer_context_create(ctx_id, nlen, name);
break;
case VIRGL_RENDERER_CAPSET_VENUS:
if (!state.vkr_initialized)
return EINVAL;
ctx = vkr_context_create(nlen, name);
break;
default:
return EINVAL;
break;
}
if (!ctx)
return ENOMEM;
ctx->ctx_id = ctx_id;
ctx->capset_id = capset_id;
ctx->fence_retire = per_context_fence_retire;
ret = virgl_context_add(ctx);
if (ret) {
ctx->destroy(ctx);
return ret;
}
return 0;
}
int virgl_renderer_context_create(uint32_t handle, uint32_t nlen, const char *name)
{
return virgl_renderer_context_create_with_flags(handle,
VIRGL_RENDERER_CAPSET_VIRGL2,
nlen,
name);
}
void virgl_renderer_context_destroy(uint32_t handle)
{
TRACE_FUNC();
virgl_context_remove(handle);
}
int virgl_renderer_submit_cmd(void *buffer,
int ctx_id,
int ndw)
{
TRACE_FUNC();
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
if (!ctx)
return EINVAL;
if (ndw < 0 || (unsigned)ndw > UINT32_MAX / sizeof(uint32_t))
return EINVAL;
return ctx->submit_cmd(ctx, buffer, ndw * sizeof(uint32_t));
}
int virgl_renderer_transfer_write_iov(uint32_t handle,
uint32_t ctx_id,
int level,
uint32_t stride,
uint32_t layer_stride,
struct virgl_box *box,
uint64_t offset,
struct iovec *iovec,
unsigned int iovec_cnt)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(handle);
struct vrend_transfer_info transfer_info;
if (!res)
return EINVAL;
transfer_info.level = level;
transfer_info.stride = stride;
transfer_info.layer_stride = layer_stride;
transfer_info.box = (struct pipe_box *)box;
transfer_info.offset = offset;
transfer_info.iovec = iovec;
transfer_info.iovec_cnt = iovec_cnt;
transfer_info.synchronized = false;
if (ctx_id) {
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
if (!ctx)
return EINVAL;
return ctx->transfer_3d(ctx, res, &transfer_info,
VIRGL_TRANSFER_TO_HOST);
} else {
if (!res->pipe_resource)
return EINVAL;
return vrend_renderer_transfer_pipe(res->pipe_resource, &transfer_info,
VIRGL_TRANSFER_TO_HOST);
}
}
int virgl_renderer_transfer_read_iov(uint32_t handle, uint32_t ctx_id,
uint32_t level, uint32_t stride,
uint32_t layer_stride,
struct virgl_box *box,
uint64_t offset, struct iovec *iovec,
int iovec_cnt)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(handle);
struct vrend_transfer_info transfer_info;
if (!res)
return EINVAL;
transfer_info.level = level;
transfer_info.stride = stride;
transfer_info.layer_stride = layer_stride;
transfer_info.box = (struct pipe_box *)box;
transfer_info.offset = offset;
transfer_info.iovec = iovec;
transfer_info.iovec_cnt = iovec_cnt;
transfer_info.synchronized = false;
if (ctx_id) {
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
if (!ctx)
return EINVAL;
return ctx->transfer_3d(ctx, res, &transfer_info,
VIRGL_TRANSFER_FROM_HOST);
} else {
if (!res->pipe_resource)
return EINVAL;
return vrend_renderer_transfer_pipe(res->pipe_resource, &transfer_info,
VIRGL_TRANSFER_FROM_HOST);
}
}
int virgl_renderer_resource_attach_iov(int res_handle, struct iovec *iov,
int num_iovs)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res)
return EINVAL;
return virgl_resource_attach_iov(res, iov, num_iovs);
}
void virgl_renderer_resource_detach_iov(int res_handle, struct iovec **iov_p, int *num_iovs_p)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res)
return;
if (iov_p)
*iov_p = (struct iovec *)res->iov;
if (num_iovs_p)
*num_iovs_p = res->iov_count;
virgl_resource_detach_iov(res);
}
int virgl_renderer_create_fence(int client_fence_id, UNUSED uint32_t ctx_id)
{
TRACE_FUNC();
const uint32_t fence_id = (uint32_t)client_fence_id;
if (state.vrend_initialized)
return vrend_renderer_create_ctx0_fence(fence_id);
return EINVAL;
}
int virgl_renderer_context_create_fence(uint32_t ctx_id,
uint32_t flags,
uint64_t queue_id,
void *fence_cookie)
{
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
if (!ctx)
return -EINVAL;
assert(state.cbs->version >= 3 && state.cbs->write_context_fence);
return ctx->submit_fence(ctx, flags, queue_id, fence_cookie);
}
void virgl_renderer_context_poll(uint32_t ctx_id)
{
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
if (!ctx)
return;
ctx->retire_fences(ctx);
}
int virgl_renderer_context_get_poll_fd(uint32_t ctx_id)
{
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
if (!ctx)
return -1;
return ctx->get_fencing_fd(ctx);
}
void virgl_renderer_force_ctx_0(void)
{
TRACE_FUNC();
if (state.vrend_initialized)
vrend_renderer_force_ctx_0();
}
void virgl_renderer_ctx_attach_resource(int ctx_id, int res_handle)
{
TRACE_FUNC();
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!ctx || !res)
return;
ctx->attach_resource(ctx, res);
}
void virgl_renderer_ctx_detach_resource(int ctx_id, int res_handle)
{
TRACE_FUNC();
struct virgl_context *ctx = virgl_context_lookup(ctx_id);
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!ctx || !res)
return;
ctx->detach_resource(ctx, res);
}
int virgl_renderer_resource_get_info(int res_handle,
struct virgl_renderer_resource_info *info)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res || !res->pipe_resource)
return EINVAL;
if (!info)
return EINVAL;
vrend_renderer_resource_get_info(res->pipe_resource,
(struct vrend_renderer_resource_info *)info);
info->handle = res_handle;
if (state.winsys_initialized) {
return vrend_winsys_get_fourcc_for_texture(info->tex_id,
info->virgl_format,
&info->drm_fourcc);
}
return 0;
}
void virgl_renderer_get_cap_set(uint32_t cap_set, uint32_t *max_ver,
uint32_t *max_size)
{
TRACE_FUNC();
/* this may be called before virgl_renderer_init */
switch (cap_set) {
case VIRGL_RENDERER_CAPSET_VIRGL:
case VIRGL_RENDERER_CAPSET_VIRGL2:
vrend_renderer_get_cap_set(cap_set, max_ver, max_size);
break;
case VIRGL_RENDERER_CAPSET_VENUS:
*max_ver = 0;
*max_size = vkr_get_capset(NULL);
break;
default:
*max_ver = 0;
*max_size = 0;
break;
}
}
void virgl_renderer_get_rect(int resource_id, struct iovec *iov, unsigned int num_iovs,
uint32_t offset, int x, int y, int width, int height)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(resource_id);
if (!res || !res->pipe_resource)
return;
vrend_renderer_get_rect(res->pipe_resource, iov, num_iovs, offset, x, y,
width, height);
}
static void ctx0_fence_retire(void *fence_cookie,
UNUSED void *retire_data)
{
const uint32_t fence_id = (uint32_t)(uintptr_t)fence_cookie;
state.cbs->write_fence(state.cookie, fence_id);
}
static virgl_renderer_gl_context create_gl_context(int scanout_idx, struct virgl_gl_ctx_param *param)
{
struct virgl_renderer_gl_ctx_param vparam;
if (state.winsys_initialized)
return vrend_winsys_create_context(param);
vparam.version = 1;
vparam.shared = param->shared;
vparam.major_ver = param->major_ver;
vparam.minor_ver = param->minor_ver;
return state.cbs->create_gl_context(state.cookie, scanout_idx, &vparam);
}
static void destroy_gl_context(virgl_renderer_gl_context ctx)
{
if (state.winsys_initialized) {
vrend_winsys_destroy_context(ctx);
return;
}
state.cbs->destroy_gl_context(state.cookie, ctx);
}
static int make_current(virgl_renderer_gl_context ctx)
{
if (state.winsys_initialized)
return vrend_winsys_make_context_current(ctx);
return state.cbs->make_current(state.cookie, 0, ctx);
}
static const struct vrend_if_cbs vrend_cbs = {
ctx0_fence_retire,
create_gl_context,
destroy_gl_context,
make_current,
};
void *virgl_renderer_get_cursor_data(uint32_t resource_id, uint32_t *width, uint32_t *height)
{
struct virgl_resource *res = virgl_resource_lookup(resource_id);
if (!res || !res->pipe_resource)
return NULL;
vrend_renderer_force_ctx_0();
return vrend_renderer_get_cursor_contents(res->pipe_resource,
width,
height);
}
void virgl_renderer_poll(void)
{
TRACE_FUNC();
if (state.vrend_initialized)
vrend_renderer_check_fences();
}
void virgl_renderer_cleanup(UNUSED void *cookie)
{
TRACE_FUNC();
if (state.vrend_initialized)
vrend_renderer_prepare_reset();
if (state.context_initialized)
virgl_context_table_cleanup();
if (state.resource_initialized)
virgl_resource_table_cleanup();
if (state.vkr_initialized)
vkr_renderer_fini();
if (state.vrend_initialized)
vrend_renderer_fini();
if (state.winsys_initialized)
vrend_winsys_cleanup();
memset(&state, 0, sizeof(state));
}
int virgl_renderer_init(void *cookie, int flags, struct virgl_renderer_callbacks *cbs)
{
TRACE_INIT();
TRACE_FUNC();
int ret;
/* VIRGL_RENDERER_THREAD_SYNC is a hint and can be silently ignored */
if (!has_eventfd() || getenv("VIRGL_DISABLE_MT"))
flags &= ~VIRGL_RENDERER_THREAD_SYNC;
if (state.client_initialized && (state.cookie != cookie ||
state.flags != flags ||
state.cbs != cbs))
return -EBUSY;
if (!state.client_initialized) {
if (cbs && (cbs->version < 1 ||
cbs->version > VIRGL_RENDERER_CALLBACKS_VERSION))
return -1;
state.cookie = cookie;
state.flags = flags;
state.cbs = cbs;
state.client_initialized = true;
}
if (!state.resource_initialized) {
const struct virgl_resource_pipe_callbacks *pipe_cbs =
(flags & VIRGL_RENDERER_NO_VIRGL) ? NULL :
vrend_renderer_get_pipe_callbacks();
ret = virgl_resource_table_init(pipe_cbs);
if (ret)
goto fail;
state.resource_initialized = true;
}
if (!state.context_initialized) {
ret = virgl_context_table_init();
if (ret)
goto fail;
state.context_initialized = true;
}
if (!state.winsys_initialized && !(flags & VIRGL_RENDERER_NO_VIRGL) &&
(flags & (VIRGL_RENDERER_USE_EGL | VIRGL_RENDERER_USE_GLX))) {
int drm_fd = -1;
if (flags & VIRGL_RENDERER_USE_EGL) {
if (cbs->version >= 2 && cbs->get_drm_fd)
drm_fd = cbs->get_drm_fd(cookie);
}
ret = vrend_winsys_init(flags, drm_fd);
if (ret) {
if (drm_fd >= 0)
close(drm_fd);
goto fail;
}
state.winsys_initialized = true;
}
if (!state.vrend_initialized && !(flags & VIRGL_RENDERER_NO_VIRGL)) {
uint32_t renderer_flags = 0;
if (!cookie || !cbs) {
ret = -1;
goto fail;
}
if (flags & VIRGL_RENDERER_THREAD_SYNC)
renderer_flags |= VREND_USE_THREAD_SYNC;
if (flags & VIRGL_RENDERER_ASYNC_FENCE_CB)
renderer_flags |= VREND_USE_ASYNC_FENCE_CB;
if (flags & VIRGL_RENDERER_USE_EXTERNAL_BLOB)
renderer_flags |= VREND_USE_EXTERNAL_BLOB;
ret = vrend_renderer_init(&vrend_cbs, renderer_flags);
if (ret)
goto fail;
state.vrend_initialized = true;
}
if (!state.vkr_initialized && (flags & VIRGL_RENDERER_VENUS)) {
uint32_t vkr_flags = 0;
if (flags & VIRGL_RENDERER_THREAD_SYNC)
vkr_flags |= VKR_RENDERER_THREAD_SYNC;
if (flags & VIRGL_RENDERER_ASYNC_FENCE_CB)
vkr_flags |= VKR_RENDERER_ASYNC_FENCE_CB;
ret = vkr_renderer_init(vkr_flags);
if (ret)
goto fail;
state.vkr_initialized = true;
}
return 0;
fail:
virgl_renderer_cleanup(NULL);
return ret;
}
int virgl_renderer_get_fd_for_texture(uint32_t tex_id, int *fd)
{
TRACE_FUNC();
if (state.winsys_initialized)
return vrend_winsys_get_fd_for_texture(tex_id, fd);
return -1;
}
int virgl_renderer_get_fd_for_texture2(uint32_t tex_id, int *fd, int *stride, int *offset)
{
TRACE_FUNC();
if (state.winsys_initialized)
return vrend_winsys_get_fd_for_texture2(tex_id, fd, stride, offset);
return -1;
}
void virgl_renderer_reset(void)
{
TRACE_FUNC();
if (state.vrend_initialized)
vrend_renderer_prepare_reset();
if (state.context_initialized)
virgl_context_table_reset();
if (state.resource_initialized)
virgl_resource_table_reset();
if (state.vkr_initialized)
vkr_renderer_reset();
if (state.vrend_initialized)
vrend_renderer_reset();
}
int virgl_renderer_get_poll_fd(void)
{
TRACE_FUNC();
if (state.vrend_initialized)
return vrend_renderer_get_poll_fd();
return -1;
}
virgl_debug_callback_type virgl_set_debug_callback(virgl_debug_callback_type cb)
{
return virgl_log_set_logger(cb);
}
static int virgl_renderer_export_query(void *execute_args, uint32_t execute_size)
{
struct virgl_resource *res;
struct virgl_renderer_export_query *export_query = execute_args;
if (execute_size != sizeof(struct virgl_renderer_export_query))
return -EINVAL;
if (export_query->hdr.size != sizeof(struct virgl_renderer_export_query))
return -EINVAL;
res = virgl_resource_lookup(export_query->in_resource_id);
if (!res)
return -EINVAL;
if (res->pipe_resource) {
return vrend_renderer_export_query(res->pipe_resource, export_query);
} else if (!export_query->in_export_fds) {
/* Untyped resources are expected to be exported with
* virgl_renderer_resource_export_blob instead and have no type
* information. But when this is called to query (in_export_fds is
* false) an untyped resource, we should return sane values.
*/
export_query->out_num_fds = 1;
export_query->out_fourcc = 0;
export_query->out_fds[0] = -1;
export_query->out_strides[0] = 0;
export_query->out_offsets[0] = 0;
export_query->out_modifier = DRM_FORMAT_MOD_INVALID;
return 0;
} else {
return -EINVAL;
}
}
static int virgl_renderer_supported_structures(void *execute_args, uint32_t execute_size)
{
struct virgl_renderer_supported_structures *supported_structures = execute_args;
if (execute_size != sizeof(struct virgl_renderer_supported_structures))
return -EINVAL;
if (supported_structures->hdr.size != sizeof(struct virgl_renderer_supported_structures))
return -EINVAL;
if (supported_structures->in_stype_version == 0) {
supported_structures->out_supported_structures_mask =
VIRGL_RENDERER_STRUCTURE_TYPE_EXPORT_QUERY |
VIRGL_RENDERER_STRUCTURE_TYPE_SUPPORTED_STRUCTURES;
} else {
supported_structures->out_supported_structures_mask = 0;
}
return 0;
}
int virgl_renderer_execute(void *execute_args, uint32_t execute_size)
{
TRACE_FUNC();
struct virgl_renderer_hdr *hdr = execute_args;
if (hdr->stype_version != 0)
return -EINVAL;
switch (hdr->stype) {
case VIRGL_RENDERER_STRUCTURE_TYPE_SUPPORTED_STRUCTURES:
return virgl_renderer_supported_structures(execute_args, execute_size);
case VIRGL_RENDERER_STRUCTURE_TYPE_EXPORT_QUERY:
return virgl_renderer_export_query(execute_args, execute_size);
default:
return -EINVAL;
}
}
int virgl_renderer_resource_create_blob(const struct virgl_renderer_resource_create_blob_args *args)
{
TRACE_FUNC();
struct virgl_resource *res;
struct virgl_context *ctx;
struct virgl_context_blob blob;
bool has_host_storage;
bool has_guest_storage;
int ret;
switch (args->blob_mem) {
case VIRGL_RENDERER_BLOB_MEM_GUEST:
has_host_storage = false;
has_guest_storage = true;
break;
case VIRGL_RENDERER_BLOB_MEM_HOST3D:
has_host_storage = true;
has_guest_storage = false;
break;
case VIRGL_RENDERER_BLOB_MEM_HOST3D_GUEST:
has_host_storage = true;
has_guest_storage = true;
break;
default:
return -EINVAL;
}
/* user resource id must be greater than 0 */
if (args->res_handle == 0)
return -EINVAL;
if (args->size == 0)
return -EINVAL;
if (has_guest_storage) {
const size_t iov_size = vrend_get_iovec_size(args->iovecs, args->num_iovs);
if (iov_size < args->size)
return -EINVAL;
} else {
if (args->num_iovs)
return -EINVAL;
}
if (!has_host_storage) {
res = virgl_resource_create_from_iov(args->res_handle,
args->iovecs,
args->num_iovs);
if (!res)
return -ENOMEM;
res->map_info = VIRGL_RENDERER_MAP_CACHE_CACHED;
return 0;
}
ctx = virgl_context_lookup(args->ctx_id);
if (!ctx)
return -EINVAL;
ret = ctx->get_blob(ctx, args->blob_id, args->blob_flags, &blob);
if (ret)
return ret;
if (blob.type != VIRGL_RESOURCE_FD_INVALID) {
res = virgl_resource_create_from_fd(args->res_handle,
blob.type,
blob.u.fd,
args->iovecs,
args->num_iovs);
if (!res) {
close(blob.u.fd);
return -ENOMEM;
}
} else {
res = virgl_resource_create_from_pipe(args->res_handle,
blob.u.pipe_resource,
args->iovecs,
args->num_iovs);
if (!res) {
vrend_renderer_resource_destroy((struct vrend_resource *)blob.u.pipe_resource);
return -ENOMEM;
}
}
res->map_info = blob.map_info;
res->map_size = args->size;
if (ctx->get_blob_done)
ctx->get_blob_done(ctx, args->res_handle, &blob);
return 0;
}
int virgl_renderer_resource_map(uint32_t res_handle, void **out_map, uint64_t *out_size)
{
TRACE_FUNC();
int ret = 0;
void *map = NULL;
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res || res->mapped)
return -EINVAL;
if (res->pipe_resource) {
ret = vrend_renderer_resource_map(res->pipe_resource, &map, &res->map_size);
} else {
switch (res->fd_type) {
case VIRGL_RESOURCE_FD_DMABUF:
map = mmap(NULL, res->map_size, PROT_WRITE | PROT_READ, MAP_SHARED, res->fd, 0);
break;
case VIRGL_RESOURCE_FD_OPAQUE:
/* TODO support mapping opaque FD. Fallthrough for now. */
default:
break;
}
}
if (!map || map == MAP_FAILED)
return -EINVAL;
res->mapped = map;
*out_map = map;
*out_size = res->map_size;
return ret;
}
int virgl_renderer_resource_unmap(uint32_t res_handle)
{
TRACE_FUNC();
int ret;
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res || !res->mapped)
return -EINVAL;
if (res->pipe_resource) {
ret = vrend_renderer_resource_unmap(res->pipe_resource);
} else {
ret = munmap(res->mapped, res->map_size);
}
assert(!ret);
res->mapped = NULL;
return ret;
}
int virgl_renderer_resource_get_map_info(uint32_t res_handle, uint32_t *map_info)
{
TRACE_FUNC();
struct virgl_resource *res = virgl_resource_lookup(res_handle);
if (!res)
return -EINVAL;
if ((res->map_info & VIRGL_RENDERER_MAP_CACHE_MASK) ==
VIRGL_RENDERER_MAP_CACHE_NONE)
return -EINVAL;
*map_info = res->map_info;
return 0;
}
int
virgl_renderer_resource_export_blob(uint32_t res_id, uint32_t *fd_type, int *fd)
{
struct virgl_resource *res = virgl_resource_lookup(res_id);
if (!res)
return EINVAL;
switch (virgl_resource_export_fd(res, fd)) {
case VIRGL_RESOURCE_FD_DMABUF:
*fd_type = VIRGL_RENDERER_BLOB_FD_TYPE_DMABUF;
break;
case VIRGL_RESOURCE_FD_OPAQUE:
*fd_type = VIRGL_RENDERER_BLOB_FD_TYPE_OPAQUE;
break;
default:
return EINVAL;
}
return 0;
}
int
virgl_renderer_export_fence(uint32_t client_fence_id, int *fd)
{
TRACE_FUNC();
return vrend_renderer_export_ctx0_fence(client_fence_id, fd);
}