/**********************************************************
* Copyright 2009 VMware, Inc. All rights reserved.
*
* 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.
*
**********************************************************/
/**
* @file
*
* Wrappers for DRM ioctl functionlaity used by the rest of the vmw
* drm winsys.
*
* Based on svgaicd_escape.c
*/
#include "svga_cmd.h"
#include "util/u_memory.h"
#include "util/u_math.h"
#include "svgadump/svga_dump.h"
#include "vmw_screen.h"
#include "vmw_context.h"
#include "vmw_fence.h"
#include "xf86drm.h"
#include "vmwgfx_drm.h"
#include "svga3d_caps.h"
#include "os/os_mman.h"
#include <errno.h>
#include <unistd.h>
struct vmw_region
{
SVGAGuestPtr ptr;
uint32_t handle;
uint64_t map_handle;
void *data;
uint32_t map_count;
int drm_fd;
uint32_t size;
};
/* XXX: This isn't a real hardware flag, but just a hack for kernel to
* know about primary surfaces. In newer versions of the kernel
* interface the driver uses a special field.
*/
#define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
uint32
vmw_ioctl_context_create(struct vmw_winsys_screen *vws)
{
struct drm_vmw_context_arg c_arg;
int ret;
VMW_FUNC;
ret = drmCommandRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_CONTEXT,
&c_arg, sizeof(c_arg));
if (ret)
return -1;
vmw_printf("Context id is %d\n", c_arg.cid);
return c_arg.cid;
}
void
vmw_ioctl_context_destroy(struct vmw_winsys_screen *vws, uint32 cid)
{
struct drm_vmw_context_arg c_arg;
VMW_FUNC;
memset(&c_arg, 0, sizeof(c_arg));
c_arg.cid = cid;
(void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_CONTEXT,
&c_arg, sizeof(c_arg));
}
uint32
vmw_ioctl_surface_create(struct vmw_winsys_screen *vws,
SVGA3dSurfaceFlags flags,
SVGA3dSurfaceFormat format,
SVGA3dSize size,
uint32_t numFaces, uint32_t numMipLevels)
{
union drm_vmw_surface_create_arg s_arg;
struct drm_vmw_surface_create_req *req = &s_arg.req;
struct drm_vmw_surface_arg *rep = &s_arg.rep;
struct drm_vmw_size sizes[DRM_VMW_MAX_SURFACE_FACES*
DRM_VMW_MAX_MIP_LEVELS];
struct drm_vmw_size *cur_size;
uint32_t iFace;
uint32_t iMipLevel;
int ret;
vmw_printf("%s flags %d format %d\n", __FUNCTION__, flags, format);
memset(&s_arg, 0, sizeof(s_arg));
if (vws->use_old_scanout_flag &&
(flags & SVGA3D_SURFACE_HINT_SCANOUT)) {
req->flags = (uint32_t) flags;
req->scanout = false;
} else if (flags & SVGA3D_SURFACE_HINT_SCANOUT) {
req->flags = (uint32_t) (flags & ~SVGA3D_SURFACE_HINT_SCANOUT);
req->scanout = true;
} else {
req->flags = (uint32_t) flags;
req->scanout = false;
}
req->format = (uint32_t) format;
req->shareable = 1;
assert(numFaces * numMipLevels < DRM_VMW_MAX_SURFACE_FACES*
DRM_VMW_MAX_MIP_LEVELS);
cur_size = sizes;
for (iFace = 0; iFace < numFaces; ++iFace) {
SVGA3dSize mipSize = size;
req->mip_levels[iFace] = numMipLevels;
for (iMipLevel = 0; iMipLevel < numMipLevels; ++iMipLevel) {
cur_size->width = mipSize.width;
cur_size->height = mipSize.height;
cur_size->depth = mipSize.depth;
mipSize.width = MAX2(mipSize.width >> 1, 1);
mipSize.height = MAX2(mipSize.height >> 1, 1);
mipSize.depth = MAX2(mipSize.depth >> 1, 1);
cur_size++;
}
}
for (iFace = numFaces; iFace < SVGA3D_MAX_SURFACE_FACES; ++iFace) {
req->mip_levels[iFace] = 0;
}
req->size_addr = (unsigned long)&sizes;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_SURFACE,
&s_arg, sizeof(s_arg));
if (ret)
return -1;
vmw_printf("Surface id is %d\n", rep->sid);
return rep->sid;
}
void
vmw_ioctl_surface_destroy(struct vmw_winsys_screen *vws, uint32 sid)
{
struct drm_vmw_surface_arg s_arg;
VMW_FUNC;
memset(&s_arg, 0, sizeof(s_arg));
s_arg.sid = sid;
(void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_SURFACE,
&s_arg, sizeof(s_arg));
}
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) {
debug_printf("%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) {
*pfence = vmw_fence_create(rep.handle, 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);
}
}
}
}
struct vmw_region *
vmw_ioctl_region_create(struct vmw_winsys_screen *vws, uint32_t size)
{
struct vmw_region *region;
union drm_vmw_alloc_dmabuf_arg arg;
struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
struct drm_vmw_dmabuf_rep *rep = &arg.rep;
int ret;
vmw_printf("%s: size = %u\n", __FUNCTION__, size);
region = CALLOC_STRUCT(vmw_region);
if (!region)
goto out_err1;
memset(&arg, 0, sizeof(arg));
req->size = size;
do {
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_ALLOC_DMABUF, &arg,
sizeof(arg));
} while (ret == -ERESTART);
if (ret) {
debug_printf("IOCTL failed %d: %s\n", ret, strerror(-ret));
goto out_err1;
}
region->ptr.gmrId = rep->cur_gmr_id;
region->ptr.offset = rep->cur_gmr_offset;
region->data = NULL;
region->handle = rep->handle;
region->map_handle = rep->map_handle;
region->map_count = 0;
region->size = size;
region->drm_fd = vws->ioctl.drm_fd;
vmw_printf(" gmrId = %u, offset = %u\n",
region->ptr.gmrId, region->ptr.offset);
return region;
out_err1:
FREE(region);
return NULL;
}
void
vmw_ioctl_region_destroy(struct vmw_region *region)
{
struct drm_vmw_unref_dmabuf_arg arg;
vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
region->ptr.gmrId, region->ptr.offset);
if (region->data) {
os_munmap(region->data, region->size);
region->data = NULL;
}
memset(&arg, 0, sizeof(arg));
arg.handle = region->handle;
drmCommandWrite(region->drm_fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
FREE(region);
}
SVGAGuestPtr
vmw_ioctl_region_ptr(struct vmw_region *region)
{
return region->ptr;
}
void *
vmw_ioctl_region_map(struct vmw_region *region)
{
void *map;
vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
region->ptr.gmrId, region->ptr.offset);
if (region->data == NULL) {
map = os_mmap(NULL, region->size, PROT_READ | PROT_WRITE, MAP_SHARED,
region->drm_fd, region->map_handle);
if (map == MAP_FAILED) {
debug_printf("%s: Map failed.\n", __FUNCTION__);
return NULL;
}
region->data = map;
}
++region->map_count;
return region->data;
}
void
vmw_ioctl_region_unmap(struct vmw_region *region)
{
vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
region->ptr.gmrId, region->ptr.offset);
--region->map_count;
}
void
vmw_ioctl_fence_unref(struct vmw_winsys_screen *vws,
uint32_t handle)
{
struct drm_vmw_fence_arg arg;
int ret;
memset(&arg, 0, sizeof(arg));
arg.handle = handle;
ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_FENCE_UNREF,
&arg, sizeof(arg));
if (ret != 0)
debug_printf("%s Failed\n", __FUNCTION__);
}
static INLINE uint32_t
vmw_drm_fence_flags(uint32_t flags)
{
uint32_t dflags = 0;
if (flags & SVGA_FENCE_FLAG_EXEC)
dflags |= DRM_VMW_FENCE_FLAG_EXEC;
if (flags & SVGA_FENCE_FLAG_QUERY)
dflags |= DRM_VMW_FENCE_FLAG_QUERY;
return dflags;
}
int
vmw_ioctl_fence_signalled(struct vmw_winsys_screen *vws,
uint32_t handle,
uint32_t flags)
{
struct drm_vmw_fence_signaled_arg arg;
uint32_t vflags = vmw_drm_fence_flags(flags);
int ret;
memset(&arg, 0, sizeof(arg));
arg.handle = handle;
arg.flags = vflags;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_SIGNALED,
&arg, sizeof(arg));
if (ret != 0)
return ret;
return (arg.signaled) ? 0 : -1;
}
int
vmw_ioctl_fence_finish(struct vmw_winsys_screen *vws,
uint32_t handle,
uint32_t flags)
{
struct drm_vmw_fence_wait_arg arg;
uint32_t vflags = vmw_drm_fence_flags(flags);
int ret;
memset(&arg, 0, sizeof(arg));
arg.handle = handle;
arg.timeout_us = 10*1000000;
arg.lazy = 0;
arg.flags = vflags;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_WAIT,
&arg, sizeof(arg));
if (ret != 0)
debug_printf("%s Failed\n", __FUNCTION__);
return 0;
}
boolean
vmw_ioctl_init(struct vmw_winsys_screen *vws)
{
struct drm_vmw_getparam_arg gp_arg;
struct drm_vmw_get_3d_cap_arg cap_arg;
unsigned int size;
int ret;
VMW_FUNC;
memset(&gp_arg, 0, sizeof(gp_arg));
gp_arg.param = DRM_VMW_PARAM_3D;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
&gp_arg, sizeof(gp_arg));
if (ret || gp_arg.value == 0) {
debug_printf("No 3D enabled (%i, %s).\n", ret, strerror(-ret));
goto out_no_3d;
}
memset(&gp_arg, 0, sizeof(gp_arg));
gp_arg.param = DRM_VMW_PARAM_FIFO_HW_VERSION;
ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
&gp_arg, sizeof(gp_arg));
if (ret) {
debug_printf("Failed to get fifo hw version"
" (%i, %s).\n", ret, strerror(-ret));
goto out_no_3d;
}
vws->ioctl.hwversion = gp_arg.value;
size = SVGA_FIFO_3D_CAPS_SIZE * sizeof(uint32_t);
vws->ioctl.buffer = calloc(1, size);
if (!vws->ioctl.buffer) {
debug_printf("Failed alloc fifo 3D caps buffer.\n");
goto out_no_3d;
}
memset(&cap_arg, 0, sizeof(cap_arg));
cap_arg.buffer = (uint64_t) (unsigned long) (vws->ioctl.buffer);
cap_arg.max_size = size;
ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_GET_3D_CAP,
&cap_arg, sizeof(cap_arg));
if (ret) {
debug_printf("Failed to get 3D capabilities"
" (%i, %s).\n", ret, strerror(-ret));
goto out_no_caps;
}
vmw_printf("%s OK\n", __FUNCTION__);
return TRUE;
out_no_caps:
free(vws->ioctl.buffer);
out_no_3d:
debug_printf("%s Failed\n", __FUNCTION__);
return FALSE;
}
void
vmw_ioctl_cleanup(struct vmw_winsys_screen *vws)
{
VMW_FUNC;
}