1 /**********************************************************
2 * Copyright 2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
28 * Contains the functions for creating dma buffers by calling
29 * the kernel via driver specific ioctls.
31 * @author Jakob Bornecrantz <jakob@vmware.com>
35 #define HAVE_STDINT_H 1
37 #define _FILE_OFFSET_BITS 64
45 #include "../../winsys/svga/drm/vmwgfx_drm.h"
47 #include "vmw_driver.h"
48 #include "util/u_debug.h"
60 vmw_ioctl_get_param(struct vmw_customizer *vmw, uint32_t param, uint64_t *out)
62 struct drm_vmw_getparam_arg gp_arg;
65 memset(&gp_arg, 0, sizeof(gp_arg));
67 ret = drmCommandWriteRead(vmw->fd, DRM_VMW_GET_PARAM,
68 &gp_arg, sizeof(gp_arg));
78 vmw_ioctl_supports_streams(struct vmw_customizer *vmw)
83 ret = vmw_ioctl_get_param(vmw, DRM_VMW_PARAM_NUM_STREAMS, &value);
87 return value ? 0 : -ENOSYS;
91 vmw_ioctl_num_streams(struct vmw_customizer *vmw,
92 uint32_t *ntot, uint32_t *nfree)
97 ret = vmw_ioctl_get_param(vmw, DRM_VMW_PARAM_NUM_STREAMS, &v1);
101 ret = vmw_ioctl_get_param(vmw, DRM_VMW_PARAM_NUM_FREE_STREAMS, &v2);
105 *ntot = (uint32_t)v1;
106 *nfree = (uint32_t)v2;
112 vmw_ioctl_claim_stream(struct vmw_customizer *vmw, uint32_t *out)
114 struct drm_vmw_stream_arg s_arg;
117 ret = drmCommandRead(vmw->fd, DRM_VMW_CLAIM_STREAM,
118 &s_arg, sizeof(s_arg));
123 *out = s_arg.stream_id;
128 vmw_ioctl_unref_stream(struct vmw_customizer *vmw, uint32_t stream_id)
130 struct drm_vmw_stream_arg s_arg;
133 memset(&s_arg, 0, sizeof(s_arg));
134 s_arg.stream_id = stream_id;
136 ret = drmCommandRead(vmw->fd, DRM_VMW_CLAIM_STREAM,
137 &s_arg, sizeof(s_arg));
143 vmw_ioctl_cursor_bypass(struct vmw_customizer *vmw, int xhot, int yhot)
145 struct drm_vmw_cursor_bypass_arg arg;
148 memset(&arg, 0, sizeof(arg));
149 arg.flags = DRM_VMW_CURSOR_BYPASS_ALL;
153 ret = drmCommandWrite(vmw->fd, DRM_VMW_CURSOR_BYPASS,
159 struct vmw_dma_buffer *
160 vmw_ioctl_buffer_create(struct vmw_customizer *vmw, uint32_t size, unsigned *handle)
162 struct vmw_dma_buffer *buf;
163 union drm_vmw_alloc_dmabuf_arg arg;
164 struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
165 struct drm_vmw_dmabuf_rep *rep = &arg.rep;
168 buf = calloc(1, sizeof(*buf));
172 memset(&arg, 0, sizeof(arg));
175 ret = drmCommandWriteRead(vmw->fd, DRM_VMW_ALLOC_DMABUF, &arg, sizeof(arg));
176 } while (ret == -ERESTART);
179 debug_printf("IOCTL failed %d: %s\n", ret, strerror(-ret));
185 buf->handle = rep->handle;
186 buf->map_handle = rep->map_handle;
190 *handle = rep->handle;
201 vmw_ioctl_buffer_destroy(struct vmw_customizer *vmw, struct vmw_dma_buffer *buf)
203 struct drm_vmw_unref_dmabuf_arg arg;
206 munmap(buf->data, buf->size);
210 memset(&arg, 0, sizeof(arg));
211 arg.handle = buf->handle;
212 drmCommandWrite(vmw->fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
218 vmw_ioctl_buffer_map(struct vmw_customizer *vmw, struct vmw_dma_buffer *buf)
222 if (buf->data == NULL) {
223 map = mmap(NULL, buf->size, PROT_READ | PROT_WRITE, MAP_SHARED,
224 vmw->fd, buf->map_handle);
225 if (map == MAP_FAILED) {
226 debug_printf("%s: Map failed.\n", __FUNCTION__);
239 vmw_ioctl_buffer_unmap(struct vmw_customizer *vmw, struct vmw_dma_buffer *buf)
245 vmw_ioctl_update_layout(struct vmw_customizer *vmw, uint32_t num, struct vmw_rect *rects)
247 struct drm_vmw_update_layout_arg ul_arg;
250 assert(sizeof(struct vmw_rect) == sizeof(struct drm_vmw_rect));
252 memset(&ul_arg, 0, sizeof(ul_arg));
253 ul_arg.num_outputs = num;
254 ul_arg.rects = (uint64_t)(uintptr_t)rects;
256 ret = drmCommandWriteRead(vmw->fd, DRM_VMW_UPDATE_LAYOUT,
257 &ul_arg, sizeof(ul_arg));