void
vmw_ioctl_command(struct vmw_winsys_screen *vws, int32_t cid,
uint32_t throttle_us, void *commands, uint32_t size,
struct pipe_fence_handle **pfence)
{
struct drm_vmw_execbuf_arg arg;
struct drm_vmw_fence_rep rep;
int ret;
#ifdef DEBUG
{
static boolean firsttime = TRUE;
static boolean debug = FALSE;
static boolean skip = FALSE;
if (firsttime) {
debug = debug_get_bool_option("SVGA_DUMP_CMD", FALSE);
skip = debug_get_bool_option("SVGA_SKIP_CMD", FALSE);
}
if (debug) {
VMW_FUNC;
svga_dump_commands(commands, size);
}
firsttime = FALSE;
if (skip) {
size = 0;
}
}
#endif
memset(&arg, 0, sizeof(arg));
memset(&rep, 0, sizeof(rep));
rep.error = -EFAULT;
if (pfence)
arg.fence_rep = (unsigned long)&rep;
arg.commands = (unsigned long)commands;
arg.command_size = size;
arg.throttle_us = throttle_us;
arg.version = DRM_VMW_EXECBUF_VERSION;
do {
ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_EXECBUF, &arg, sizeof(arg));
} while(ret == -ERESTART);
if (ret) {
vmw_error("%s error %s.\n", __FUNCTION__, strerror(-ret));
}
if (rep.error) {
/*
* Kernel has already synced, or caller requested no fence.
*/
if (pfence)
*pfence = NULL;
} else {
if (pfence) {
vmw_fences_signal(vws->fence_ops, rep.passed_seqno, rep.seqno,
TRUE);
*pfence = vmw_fence_create(vws->fence_ops, rep.handle,
rep.seqno, rep.mask);
if (*pfence == NULL) {
/*
* Fence creation failed. Need to sync.
*/
(void) vmw_ioctl_fence_finish(vws, rep.handle, rep.mask);
vmw_ioctl_fence_unref(vws, rep.handle);
}
}
}
}
void
vmw_ioctl_command(struct vmw_winsys_screen *vws, int32_t cid,
uint32_t throttle_us, void *commands, uint32_t size,
struct pipe_fence_handle **pfence, int32_t imported_fence_fd,
uint32_t flags)
{
struct drm_vmw_execbuf_arg arg;
struct drm_vmw_fence_rep rep;
int ret;
int argsize;
#ifdef DEBUG
{
static boolean firsttime = TRUE;
static boolean debug = FALSE;
static boolean skip = FALSE;
if (firsttime) {
debug = debug_get_bool_option("SVGA_DUMP_CMD", FALSE);
skip = debug_get_bool_option("SVGA_SKIP_CMD", FALSE);
}
if (debug) {
VMW_FUNC;
svga_dump_commands(commands, size);
}
firsttime = FALSE;
if (skip) {
size = 0;
}
}
#endif
memset(&arg, 0, sizeof(arg));
memset(&rep, 0, sizeof(rep));
if (flags & SVGA_HINT_FLAG_EXPORT_FENCE_FD) {
arg.flags |= DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD;
}
if (imported_fence_fd != -1) {
arg.flags |= DRM_VMW_EXECBUF_FLAG_IMPORT_FENCE_FD;
}
rep.error = -EFAULT;
if (pfence)
arg.fence_rep = (unsigned long)&rep;
arg.commands = (unsigned long)commands;
arg.command_size = size;
arg.throttle_us = throttle_us;
arg.version = vws->ioctl.drm_execbuf_version;
arg.context_handle = (vws->base.have_vgpu10 ? cid : SVGA3D_INVALID_ID);
/* Older DRM module requires this to be zero */
if (vws->base.have_fence_fd)
arg.imported_fence_fd = imported_fence_fd;
/* In DRM_VMW_EXECBUF_VERSION 1, the drm_vmw_execbuf_arg structure ends with
* the flags field. The structure size sent to drmCommandWrite must match
* the drm_execbuf_version. Otherwise, an invalid value will be returned.
*/
argsize = vws->ioctl.drm_execbuf_version > 1 ? sizeof(arg) :
offsetof(struct drm_vmw_execbuf_arg, context_handle);
do {
ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_EXECBUF, &arg, argsize);
if (ret == -EBUSY)
usleep(1000);
} while(ret == -ERESTART || ret == -EBUSY);
if (ret) {
vmw_error("%s error %s.\n", __FUNCTION__, strerror(-ret));
abort();
}
if (rep.error) {
/*
* Kernel has already synced, or caller requested no fence.
*/
if (pfence)
*pfence = NULL;
} else {
if (pfence) {
vmw_fences_signal(vws->fence_ops, rep.passed_seqno, rep.seqno,
TRUE);
/* Older DRM module will set this to zero, but -1 is the proper FD
* to use for no Fence FD support */
if (!vws->base.have_fence_fd)
rep.fd = -1;
*pfence = vmw_fence_create(vws->fence_ops, rep.handle,
rep.seqno, rep.mask, rep.fd);
if (*pfence == NULL) {
/*
* Fence creation failed. Need to sync.
*/
(void) vmw_ioctl_fence_finish(vws, rep.handle, rep.mask);
vmw_ioctl_fence_unref(vws, rep.handle);
}
}
}
}
