1 /**********************************************************
2 * Copyright 2009 VMware, Inc. All rights reserved.
3 *
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:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
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
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26
27 #include "pipe/p_compiler.h"
28 #include "util/u_inlines.h"
29 #include "util/u_memory.h"
30 #include "util/u_format.h"
31 #include "vmw_screen.h"
32
33 #include "vmw_surface.h"
34 #include "svga_drm_public.h"
35
36 #include "state_tracker/drm_driver.h"
37
38 #include "vmwgfx_drm.h"
39 #include <xf86drm.h>
40
41 #include <stdio.h>
42
43 struct dri1_api_version {
44 int major;
45 int minor;
46 int patch_level;
47 };
48
49 static struct svga_winsys_surface *
50 vmw_drm_surface_from_handle(struct svga_winsys_screen *sws,
51 struct winsys_handle *whandle,
52 SVGA3dSurfaceFormat *format);
53 static boolean
54 vmw_drm_surface_get_handle(struct svga_winsys_screen *sws,
55 struct svga_winsys_surface *surface,
56 unsigned stride,
57 struct winsys_handle *whandle);
58
59 static struct dri1_api_version drm_required = { 2, 1, 0 };
60 static struct dri1_api_version drm_compat = { 2, 0, 0 };
61
62 static boolean
vmw_dri1_check_version(const struct dri1_api_version * cur,const struct dri1_api_version * required,const struct dri1_api_version * compat,const char component[])63 vmw_dri1_check_version(const struct dri1_api_version *cur,
64 const struct dri1_api_version *required,
65 const struct dri1_api_version *compat,
66 const char component[])
67 {
68 if (cur->major > required->major && cur->major <= compat->major)
69 return TRUE;
70 if (cur->major == required->major && cur->minor >= required->minor)
71 return TRUE;
72
73 fprintf(stderr, "%s version failure.\n", component);
74 fprintf(stderr, "%s version is %d.%d.%d and this driver can only work\n"
75 "with versions %d.%d.x through %d.x.x.\n",
76 component,
77 cur->major,
78 cur->minor,
79 cur->patch_level, required->major, required->minor, compat->major);
80 return FALSE;
81 }
82
83 /* This is actually the entrypoint to the entire driver,
84 * called by the target bootstrap code.
85 */
86 struct svga_winsys_screen *
svga_drm_winsys_screen_create(int fd)87 svga_drm_winsys_screen_create(int fd)
88 {
89 struct vmw_winsys_screen *vws;
90 struct dri1_api_version drm_ver;
91 drmVersionPtr ver;
92
93 ver = drmGetVersion(fd);
94 if (ver == NULL)
95 return NULL;
96
97 drm_ver.major = ver->version_major;
98 drm_ver.minor = ver->version_minor;
99 drm_ver.patch_level = 0; /* ??? */
100
101 drmFreeVersion(ver);
102 if (!vmw_dri1_check_version(&drm_ver, &drm_required,
103 &drm_compat, "vmwgfx drm driver"))
104 return NULL;
105
106 vws = vmw_winsys_create( fd, FALSE );
107 if (!vws)
108 goto out_no_vws;
109
110 /* XXX do this properly */
111 vws->base.surface_from_handle = vmw_drm_surface_from_handle;
112 vws->base.surface_get_handle = vmw_drm_surface_get_handle;
113
114 return &vws->base;
115
116 out_no_vws:
117 return NULL;
118 }
119
120 static INLINE boolean
vmw_dri1_intersect_src_bbox(struct drm_clip_rect * dst,int dst_x,int dst_y,const struct drm_clip_rect * src,const struct drm_clip_rect * bbox)121 vmw_dri1_intersect_src_bbox(struct drm_clip_rect *dst,
122 int dst_x,
123 int dst_y,
124 const struct drm_clip_rect *src,
125 const struct drm_clip_rect *bbox)
126 {
127 int xy1;
128 int xy2;
129
130 xy1 = ((int)src->x1 > (int)bbox->x1 + dst_x) ? src->x1 :
131 (int)bbox->x1 + dst_x;
132 xy2 = ((int)src->x2 < (int)bbox->x2 + dst_x) ? src->x2 :
133 (int)bbox->x2 + dst_x;
134 if (xy1 >= xy2 || xy1 < 0)
135 return FALSE;
136
137 dst->x1 = xy1;
138 dst->x2 = xy2;
139
140 xy1 = ((int)src->y1 > (int)bbox->y1 + dst_y) ? src->y1 :
141 (int)bbox->y1 + dst_y;
142 xy2 = ((int)src->y2 < (int)bbox->y2 + dst_y) ? src->y2 :
143 (int)bbox->y2 + dst_y;
144 if (xy1 >= xy2 || xy1 < 0)
145 return FALSE;
146
147 dst->y1 = xy1;
148 dst->y2 = xy2;
149 return TRUE;
150 }
151
152 static struct svga_winsys_surface *
vmw_drm_surface_from_handle(struct svga_winsys_screen * sws,struct winsys_handle * whandle,SVGA3dSurfaceFormat * format)153 vmw_drm_surface_from_handle(struct svga_winsys_screen *sws,
154 struct winsys_handle *whandle,
155 SVGA3dSurfaceFormat *format)
156 {
157 struct vmw_svga_winsys_surface *vsrf;
158 struct svga_winsys_surface *ssrf;
159 struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
160 union drm_vmw_surface_reference_arg arg;
161 struct drm_vmw_surface_arg *req = &arg.req;
162 struct drm_vmw_surface_create_req *rep = &arg.rep;
163 int ret;
164 int i;
165
166 /**
167 * The vmware device specific handle is the hardware SID.
168 * FIXME: We probably want to move this to the ioctl implementations.
169 */
170
171 memset(&arg, 0, sizeof(arg));
172 req->sid = whandle->handle;
173
174 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_REF_SURFACE,
175 &arg, sizeof(arg));
176
177 if (ret) {
178 fprintf(stderr, "Failed referencing shared surface. SID %d.\n"
179 "Error %d (%s).\n",
180 whandle->handle, ret, strerror(-ret));
181 return NULL;
182 }
183
184 if (rep->mip_levels[0] != 1) {
185 fprintf(stderr, "Incorrect number of mipmap levels on shared surface."
186 " SID %d, levels %d\n",
187 whandle->handle, rep->mip_levels[0]);
188 goto out_mip;
189 }
190
191 for (i=1; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
192 if (rep->mip_levels[i] != 0) {
193 fprintf(stderr, "Incorrect number of faces levels on shared surface."
194 " SID %d, face %d present.\n",
195 whandle->handle, i);
196 goto out_mip;
197 }
198 }
199
200 vsrf = CALLOC_STRUCT(vmw_svga_winsys_surface);
201 if (!vsrf)
202 goto out_mip;
203
204 pipe_reference_init(&vsrf->refcnt, 1);
205 p_atomic_set(&vsrf->validated, 0);
206 vsrf->screen = vws;
207 vsrf->sid = whandle->handle;
208 ssrf = svga_winsys_surface(vsrf);
209 *format = rep->format;
210
211 return ssrf;
212
213 out_mip:
214 vmw_ioctl_surface_destroy(vws, whandle->handle);
215 return NULL;
216 }
217
218 static boolean
vmw_drm_surface_get_handle(struct svga_winsys_screen * sws,struct svga_winsys_surface * surface,unsigned stride,struct winsys_handle * whandle)219 vmw_drm_surface_get_handle(struct svga_winsys_screen *sws,
220 struct svga_winsys_surface *surface,
221 unsigned stride,
222 struct winsys_handle *whandle)
223 {
224 struct vmw_svga_winsys_surface *vsrf;
225
226 if (!surface)
227 return FALSE;
228
229 vsrf = vmw_svga_winsys_surface(surface);
230 whandle->handle = vsrf->sid;
231 whandle->stride = stride;
232
233 return TRUE;
234 }
235