vmsvga: shadow fifo registers
[qemu.git] / hw / display / vmware_vga.c
1 /*
2 * QEMU VMware-SVGA "chipset".
3 *
4 * Copyright (c) 2007 Andrzej Zaborowski <balrog@zabor.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "qemu/osdep.h"
25 #include "qapi/error.h"
26 #include "hw/hw.h"
27 #include "hw/loader.h"
28 #include "trace.h"
29 #include "ui/console.h"
30 #include "ui/vnc.h"
31 #include "hw/pci/pci.h"
32
33 #undef VERBOSE
34 #define HW_RECT_ACCEL
35 #define HW_FILL_ACCEL
36 #define HW_MOUSE_ACCEL
37
38 #include "vga_int.h"
39
40 /* See http://vmware-svga.sf.net/ for some documentation on VMWare SVGA */
41
42 struct vmsvga_state_s {
43 VGACommonState vga;
44
45 int invalidated;
46 int enable;
47 int config;
48 struct {
49 int id;
50 int x;
51 int y;
52 int on;
53 } cursor;
54
55 int index;
56 int scratch_size;
57 uint32_t *scratch;
58 int new_width;
59 int new_height;
60 int new_depth;
61 uint32_t guest;
62 uint32_t svgaid;
63 int syncing;
64
65 MemoryRegion fifo_ram;
66 uint8_t *fifo_ptr;
67 unsigned int fifo_size;
68
69 uint32_t *fifo;
70 uint32_t fifo_min;
71 uint32_t fifo_max;
72 uint32_t fifo_next;
73 uint32_t fifo_stop;
74
75 #define REDRAW_FIFO_LEN 512
76 struct vmsvga_rect_s {
77 int x, y, w, h;
78 } redraw_fifo[REDRAW_FIFO_LEN];
79 int redraw_fifo_first, redraw_fifo_last;
80 };
81
82 #define TYPE_VMWARE_SVGA "vmware-svga"
83
84 #define VMWARE_SVGA(obj) \
85 OBJECT_CHECK(struct pci_vmsvga_state_s, (obj), TYPE_VMWARE_SVGA)
86
87 struct pci_vmsvga_state_s {
88 /*< private >*/
89 PCIDevice parent_obj;
90 /*< public >*/
91
92 struct vmsvga_state_s chip;
93 MemoryRegion io_bar;
94 };
95
96 #define SVGA_MAGIC 0x900000UL
97 #define SVGA_MAKE_ID(ver) (SVGA_MAGIC << 8 | (ver))
98 #define SVGA_ID_0 SVGA_MAKE_ID(0)
99 #define SVGA_ID_1 SVGA_MAKE_ID(1)
100 #define SVGA_ID_2 SVGA_MAKE_ID(2)
101
102 #define SVGA_LEGACY_BASE_PORT 0x4560
103 #define SVGA_INDEX_PORT 0x0
104 #define SVGA_VALUE_PORT 0x1
105 #define SVGA_BIOS_PORT 0x2
106
107 #define SVGA_VERSION_2
108
109 #ifdef SVGA_VERSION_2
110 # define SVGA_ID SVGA_ID_2
111 # define SVGA_IO_BASE SVGA_LEGACY_BASE_PORT
112 # define SVGA_IO_MUL 1
113 # define SVGA_FIFO_SIZE 0x10000
114 # define SVGA_PCI_DEVICE_ID PCI_DEVICE_ID_VMWARE_SVGA2
115 #else
116 # define SVGA_ID SVGA_ID_1
117 # define SVGA_IO_BASE SVGA_LEGACY_BASE_PORT
118 # define SVGA_IO_MUL 4
119 # define SVGA_FIFO_SIZE 0x10000
120 # define SVGA_PCI_DEVICE_ID PCI_DEVICE_ID_VMWARE_SVGA
121 #endif
122
123 enum {
124 /* ID 0, 1 and 2 registers */
125 SVGA_REG_ID = 0,
126 SVGA_REG_ENABLE = 1,
127 SVGA_REG_WIDTH = 2,
128 SVGA_REG_HEIGHT = 3,
129 SVGA_REG_MAX_WIDTH = 4,
130 SVGA_REG_MAX_HEIGHT = 5,
131 SVGA_REG_DEPTH = 6,
132 SVGA_REG_BITS_PER_PIXEL = 7, /* Current bpp in the guest */
133 SVGA_REG_PSEUDOCOLOR = 8,
134 SVGA_REG_RED_MASK = 9,
135 SVGA_REG_GREEN_MASK = 10,
136 SVGA_REG_BLUE_MASK = 11,
137 SVGA_REG_BYTES_PER_LINE = 12,
138 SVGA_REG_FB_START = 13,
139 SVGA_REG_FB_OFFSET = 14,
140 SVGA_REG_VRAM_SIZE = 15,
141 SVGA_REG_FB_SIZE = 16,
142
143 /* ID 1 and 2 registers */
144 SVGA_REG_CAPABILITIES = 17,
145 SVGA_REG_MEM_START = 18, /* Memory for command FIFO */
146 SVGA_REG_MEM_SIZE = 19,
147 SVGA_REG_CONFIG_DONE = 20, /* Set when memory area configured */
148 SVGA_REG_SYNC = 21, /* Write to force synchronization */
149 SVGA_REG_BUSY = 22, /* Read to check if sync is done */
150 SVGA_REG_GUEST_ID = 23, /* Set guest OS identifier */
151 SVGA_REG_CURSOR_ID = 24, /* ID of cursor */
152 SVGA_REG_CURSOR_X = 25, /* Set cursor X position */
153 SVGA_REG_CURSOR_Y = 26, /* Set cursor Y position */
154 SVGA_REG_CURSOR_ON = 27, /* Turn cursor on/off */
155 SVGA_REG_HOST_BITS_PER_PIXEL = 28, /* Current bpp in the host */
156 SVGA_REG_SCRATCH_SIZE = 29, /* Number of scratch registers */
157 SVGA_REG_MEM_REGS = 30, /* Number of FIFO registers */
158 SVGA_REG_NUM_DISPLAYS = 31, /* Number of guest displays */
159 SVGA_REG_PITCHLOCK = 32, /* Fixed pitch for all modes */
160
161 SVGA_PALETTE_BASE = 1024, /* Base of SVGA color map */
162 SVGA_PALETTE_END = SVGA_PALETTE_BASE + 767,
163 SVGA_SCRATCH_BASE = SVGA_PALETTE_BASE + 768,
164 };
165
166 #define SVGA_CAP_NONE 0
167 #define SVGA_CAP_RECT_FILL (1 << 0)
168 #define SVGA_CAP_RECT_COPY (1 << 1)
169 #define SVGA_CAP_RECT_PAT_FILL (1 << 2)
170 #define SVGA_CAP_LEGACY_OFFSCREEN (1 << 3)
171 #define SVGA_CAP_RASTER_OP (1 << 4)
172 #define SVGA_CAP_CURSOR (1 << 5)
173 #define SVGA_CAP_CURSOR_BYPASS (1 << 6)
174 #define SVGA_CAP_CURSOR_BYPASS_2 (1 << 7)
175 #define SVGA_CAP_8BIT_EMULATION (1 << 8)
176 #define SVGA_CAP_ALPHA_CURSOR (1 << 9)
177 #define SVGA_CAP_GLYPH (1 << 10)
178 #define SVGA_CAP_GLYPH_CLIPPING (1 << 11)
179 #define SVGA_CAP_OFFSCREEN_1 (1 << 12)
180 #define SVGA_CAP_ALPHA_BLEND (1 << 13)
181 #define SVGA_CAP_3D (1 << 14)
182 #define SVGA_CAP_EXTENDED_FIFO (1 << 15)
183 #define SVGA_CAP_MULTIMON (1 << 16)
184 #define SVGA_CAP_PITCHLOCK (1 << 17)
185
186 /*
187 * FIFO offsets (seen as an array of 32-bit words)
188 */
189 enum {
190 /*
191 * The original defined FIFO offsets
192 */
193 SVGA_FIFO_MIN = 0,
194 SVGA_FIFO_MAX, /* The distance from MIN to MAX must be at least 10K */
195 SVGA_FIFO_NEXT,
196 SVGA_FIFO_STOP,
197
198 /*
199 * Additional offsets added as of SVGA_CAP_EXTENDED_FIFO
200 */
201 SVGA_FIFO_CAPABILITIES = 4,
202 SVGA_FIFO_FLAGS,
203 SVGA_FIFO_FENCE,
204 SVGA_FIFO_3D_HWVERSION,
205 SVGA_FIFO_PITCHLOCK,
206 };
207
208 #define SVGA_FIFO_CAP_NONE 0
209 #define SVGA_FIFO_CAP_FENCE (1 << 0)
210 #define SVGA_FIFO_CAP_ACCELFRONT (1 << 1)
211 #define SVGA_FIFO_CAP_PITCHLOCK (1 << 2)
212
213 #define SVGA_FIFO_FLAG_NONE 0
214 #define SVGA_FIFO_FLAG_ACCELFRONT (1 << 0)
215
216 /* These values can probably be changed arbitrarily. */
217 #define SVGA_SCRATCH_SIZE 0x8000
218 #define SVGA_MAX_WIDTH ROUND_UP(2360, VNC_DIRTY_PIXELS_PER_BIT)
219 #define SVGA_MAX_HEIGHT 1770
220
221 #ifdef VERBOSE
222 # define GUEST_OS_BASE 0x5001
223 static const char *vmsvga_guest_id[] = {
224 [0x00] = "Dos",
225 [0x01] = "Windows 3.1",
226 [0x02] = "Windows 95",
227 [0x03] = "Windows 98",
228 [0x04] = "Windows ME",
229 [0x05] = "Windows NT",
230 [0x06] = "Windows 2000",
231 [0x07] = "Linux",
232 [0x08] = "OS/2",
233 [0x09] = "an unknown OS",
234 [0x0a] = "BSD",
235 [0x0b] = "Whistler",
236 [0x0c] = "an unknown OS",
237 [0x0d] = "an unknown OS",
238 [0x0e] = "an unknown OS",
239 [0x0f] = "an unknown OS",
240 [0x10] = "an unknown OS",
241 [0x11] = "an unknown OS",
242 [0x12] = "an unknown OS",
243 [0x13] = "an unknown OS",
244 [0x14] = "an unknown OS",
245 [0x15] = "Windows 2003",
246 };
247 #endif
248
249 enum {
250 SVGA_CMD_INVALID_CMD = 0,
251 SVGA_CMD_UPDATE = 1,
252 SVGA_CMD_RECT_FILL = 2,
253 SVGA_CMD_RECT_COPY = 3,
254 SVGA_CMD_DEFINE_BITMAP = 4,
255 SVGA_CMD_DEFINE_BITMAP_SCANLINE = 5,
256 SVGA_CMD_DEFINE_PIXMAP = 6,
257 SVGA_CMD_DEFINE_PIXMAP_SCANLINE = 7,
258 SVGA_CMD_RECT_BITMAP_FILL = 8,
259 SVGA_CMD_RECT_PIXMAP_FILL = 9,
260 SVGA_CMD_RECT_BITMAP_COPY = 10,
261 SVGA_CMD_RECT_PIXMAP_COPY = 11,
262 SVGA_CMD_FREE_OBJECT = 12,
263 SVGA_CMD_RECT_ROP_FILL = 13,
264 SVGA_CMD_RECT_ROP_COPY = 14,
265 SVGA_CMD_RECT_ROP_BITMAP_FILL = 15,
266 SVGA_CMD_RECT_ROP_PIXMAP_FILL = 16,
267 SVGA_CMD_RECT_ROP_BITMAP_COPY = 17,
268 SVGA_CMD_RECT_ROP_PIXMAP_COPY = 18,
269 SVGA_CMD_DEFINE_CURSOR = 19,
270 SVGA_CMD_DISPLAY_CURSOR = 20,
271 SVGA_CMD_MOVE_CURSOR = 21,
272 SVGA_CMD_DEFINE_ALPHA_CURSOR = 22,
273 SVGA_CMD_DRAW_GLYPH = 23,
274 SVGA_CMD_DRAW_GLYPH_CLIPPED = 24,
275 SVGA_CMD_UPDATE_VERBOSE = 25,
276 SVGA_CMD_SURFACE_FILL = 26,
277 SVGA_CMD_SURFACE_COPY = 27,
278 SVGA_CMD_SURFACE_ALPHA_BLEND = 28,
279 SVGA_CMD_FRONT_ROP_FILL = 29,
280 SVGA_CMD_FENCE = 30,
281 };
282
283 /* Legal values for the SVGA_REG_CURSOR_ON register in cursor bypass mode */
284 enum {
285 SVGA_CURSOR_ON_HIDE = 0,
286 SVGA_CURSOR_ON_SHOW = 1,
287 SVGA_CURSOR_ON_REMOVE_FROM_FB = 2,
288 SVGA_CURSOR_ON_RESTORE_TO_FB = 3,
289 };
290
291 static inline bool vmsvga_verify_rect(DisplaySurface *surface,
292 const char *name,
293 int x, int y, int w, int h)
294 {
295 if (x < 0) {
296 fprintf(stderr, "%s: x was < 0 (%d)\n", name, x);
297 return false;
298 }
299 if (x > SVGA_MAX_WIDTH) {
300 fprintf(stderr, "%s: x was > %d (%d)\n", name, SVGA_MAX_WIDTH, x);
301 return false;
302 }
303 if (w < 0) {
304 fprintf(stderr, "%s: w was < 0 (%d)\n", name, w);
305 return false;
306 }
307 if (w > SVGA_MAX_WIDTH) {
308 fprintf(stderr, "%s: w was > %d (%d)\n", name, SVGA_MAX_WIDTH, w);
309 return false;
310 }
311 if (x + w > surface_width(surface)) {
312 fprintf(stderr, "%s: width was > %d (x: %d, w: %d)\n",
313 name, surface_width(surface), x, w);
314 return false;
315 }
316
317 if (y < 0) {
318 fprintf(stderr, "%s: y was < 0 (%d)\n", name, y);
319 return false;
320 }
321 if (y > SVGA_MAX_HEIGHT) {
322 fprintf(stderr, "%s: y was > %d (%d)\n", name, SVGA_MAX_HEIGHT, y);
323 return false;
324 }
325 if (h < 0) {
326 fprintf(stderr, "%s: h was < 0 (%d)\n", name, h);
327 return false;
328 }
329 if (h > SVGA_MAX_HEIGHT) {
330 fprintf(stderr, "%s: h was > %d (%d)\n", name, SVGA_MAX_HEIGHT, h);
331 return false;
332 }
333 if (y + h > surface_height(surface)) {
334 fprintf(stderr, "%s: update height > %d (y: %d, h: %d)\n",
335 name, surface_height(surface), y, h);
336 return false;
337 }
338
339 return true;
340 }
341
342 static inline void vmsvga_update_rect(struct vmsvga_state_s *s,
343 int x, int y, int w, int h)
344 {
345 DisplaySurface *surface = qemu_console_surface(s->vga.con);
346 int line;
347 int bypl;
348 int width;
349 int start;
350 uint8_t *src;
351 uint8_t *dst;
352
353 if (!vmsvga_verify_rect(surface, __func__, x, y, w, h)) {
354 /* go for a fullscreen update as fallback */
355 x = 0;
356 y = 0;
357 w = surface_width(surface);
358 h = surface_height(surface);
359 }
360
361 bypl = surface_stride(surface);
362 width = surface_bytes_per_pixel(surface) * w;
363 start = surface_bytes_per_pixel(surface) * x + bypl * y;
364 src = s->vga.vram_ptr + start;
365 dst = surface_data(surface) + start;
366
367 for (line = h; line > 0; line--, src += bypl, dst += bypl) {
368 memcpy(dst, src, width);
369 }
370 dpy_gfx_update(s->vga.con, x, y, w, h);
371 }
372
373 static inline void vmsvga_update_rect_delayed(struct vmsvga_state_s *s,
374 int x, int y, int w, int h)
375 {
376 struct vmsvga_rect_s *rect = &s->redraw_fifo[s->redraw_fifo_last++];
377
378 s->redraw_fifo_last &= REDRAW_FIFO_LEN - 1;
379 rect->x = x;
380 rect->y = y;
381 rect->w = w;
382 rect->h = h;
383 }
384
385 static inline void vmsvga_update_rect_flush(struct vmsvga_state_s *s)
386 {
387 struct vmsvga_rect_s *rect;
388
389 if (s->invalidated) {
390 s->redraw_fifo_first = s->redraw_fifo_last;
391 return;
392 }
393 /* Overlapping region updates can be optimised out here - if someone
394 * knows a smart algorithm to do that, please share. */
395 while (s->redraw_fifo_first != s->redraw_fifo_last) {
396 rect = &s->redraw_fifo[s->redraw_fifo_first++];
397 s->redraw_fifo_first &= REDRAW_FIFO_LEN - 1;
398 vmsvga_update_rect(s, rect->x, rect->y, rect->w, rect->h);
399 }
400 }
401
402 #ifdef HW_RECT_ACCEL
403 static inline int vmsvga_copy_rect(struct vmsvga_state_s *s,
404 int x0, int y0, int x1, int y1, int w, int h)
405 {
406 DisplaySurface *surface = qemu_console_surface(s->vga.con);
407 uint8_t *vram = s->vga.vram_ptr;
408 int bypl = surface_stride(surface);
409 int bypp = surface_bytes_per_pixel(surface);
410 int width = bypp * w;
411 int line = h;
412 uint8_t *ptr[2];
413
414 if (!vmsvga_verify_rect(surface, "vmsvga_copy_rect/src", x0, y0, w, h)) {
415 return -1;
416 }
417 if (!vmsvga_verify_rect(surface, "vmsvga_copy_rect/dst", x1, y1, w, h)) {
418 return -1;
419 }
420
421 if (y1 > y0) {
422 ptr[0] = vram + bypp * x0 + bypl * (y0 + h - 1);
423 ptr[1] = vram + bypp * x1 + bypl * (y1 + h - 1);
424 for (; line > 0; line --, ptr[0] -= bypl, ptr[1] -= bypl) {
425 memmove(ptr[1], ptr[0], width);
426 }
427 } else {
428 ptr[0] = vram + bypp * x0 + bypl * y0;
429 ptr[1] = vram + bypp * x1 + bypl * y1;
430 for (; line > 0; line --, ptr[0] += bypl, ptr[1] += bypl) {
431 memmove(ptr[1], ptr[0], width);
432 }
433 }
434
435 vmsvga_update_rect_delayed(s, x1, y1, w, h);
436 return 0;
437 }
438 #endif
439
440 #ifdef HW_FILL_ACCEL
441 static inline int vmsvga_fill_rect(struct vmsvga_state_s *s,
442 uint32_t c, int x, int y, int w, int h)
443 {
444 DisplaySurface *surface = qemu_console_surface(s->vga.con);
445 int bypl = surface_stride(surface);
446 int width = surface_bytes_per_pixel(surface) * w;
447 int line = h;
448 int column;
449 uint8_t *fst;
450 uint8_t *dst;
451 uint8_t *src;
452 uint8_t col[4];
453
454 if (!vmsvga_verify_rect(surface, __func__, x, y, w, h)) {
455 return -1;
456 }
457
458 col[0] = c;
459 col[1] = c >> 8;
460 col[2] = c >> 16;
461 col[3] = c >> 24;
462
463 fst = s->vga.vram_ptr + surface_bytes_per_pixel(surface) * x + bypl * y;
464
465 if (line--) {
466 dst = fst;
467 src = col;
468 for (column = width; column > 0; column--) {
469 *(dst++) = *(src++);
470 if (src - col == surface_bytes_per_pixel(surface)) {
471 src = col;
472 }
473 }
474 dst = fst;
475 for (; line > 0; line--) {
476 dst += bypl;
477 memcpy(dst, fst, width);
478 }
479 }
480
481 vmsvga_update_rect_delayed(s, x, y, w, h);
482 return 0;
483 }
484 #endif
485
486 struct vmsvga_cursor_definition_s {
487 uint32_t width;
488 uint32_t height;
489 int id;
490 uint32_t bpp;
491 int hot_x;
492 int hot_y;
493 uint32_t mask[1024];
494 uint32_t image[4096];
495 };
496
497 #define SVGA_BITMAP_SIZE(w, h) ((((w) + 31) >> 5) * (h))
498 #define SVGA_PIXMAP_SIZE(w, h, bpp) (((((w) * (bpp)) + 31) >> 5) * (h))
499
500 #ifdef HW_MOUSE_ACCEL
501 static inline void vmsvga_cursor_define(struct vmsvga_state_s *s,
502 struct vmsvga_cursor_definition_s *c)
503 {
504 QEMUCursor *qc;
505 int i, pixels;
506
507 qc = cursor_alloc(c->width, c->height);
508 qc->hot_x = c->hot_x;
509 qc->hot_y = c->hot_y;
510 switch (c->bpp) {
511 case 1:
512 cursor_set_mono(qc, 0xffffff, 0x000000, (void *)c->image,
513 1, (void *)c->mask);
514 #ifdef DEBUG
515 cursor_print_ascii_art(qc, "vmware/mono");
516 #endif
517 break;
518 case 32:
519 /* fill alpha channel from mask, set color to zero */
520 cursor_set_mono(qc, 0x000000, 0x000000, (void *)c->mask,
521 1, (void *)c->mask);
522 /* add in rgb values */
523 pixels = c->width * c->height;
524 for (i = 0; i < pixels; i++) {
525 qc->data[i] |= c->image[i] & 0xffffff;
526 }
527 #ifdef DEBUG
528 cursor_print_ascii_art(qc, "vmware/32bit");
529 #endif
530 break;
531 default:
532 fprintf(stderr, "%s: unhandled bpp %d, using fallback cursor\n",
533 __func__, c->bpp);
534 cursor_put(qc);
535 qc = cursor_builtin_left_ptr();
536 }
537
538 dpy_cursor_define(s->vga.con, qc);
539 cursor_put(qc);
540 }
541 #endif
542
543 static inline int vmsvga_fifo_length(struct vmsvga_state_s *s)
544 {
545 int num;
546
547 if (!s->config || !s->enable) {
548 return 0;
549 }
550
551 s->fifo_min = le32_to_cpu(s->fifo[SVGA_FIFO_MIN]);
552 s->fifo_max = le32_to_cpu(s->fifo[SVGA_FIFO_MAX]);
553 s->fifo_next = le32_to_cpu(s->fifo[SVGA_FIFO_NEXT]);
554 s->fifo_stop = le32_to_cpu(s->fifo[SVGA_FIFO_STOP]);
555
556 /* Check range and alignment. */
557 if ((s->fifo_min | s->fifo_max | s->fifo_next | s->fifo_stop) & 3) {
558 return 0;
559 }
560 if (s->fifo_min < sizeof(uint32_t) * 4) {
561 return 0;
562 }
563 if (s->fifo_max > SVGA_FIFO_SIZE ||
564 s->fifo_min >= SVGA_FIFO_SIZE ||
565 s->fifo_stop >= SVGA_FIFO_SIZE ||
566 s->fifo_next >= SVGA_FIFO_SIZE) {
567 return 0;
568 }
569 if (s->fifo_max < s->fifo_min + 10 * 1024) {
570 return 0;
571 }
572
573 num = s->fifo_next - s->fifo_stop;
574 if (num < 0) {
575 num += s->fifo_max - s->fifo_min;
576 }
577 return num >> 2;
578 }
579
580 static inline uint32_t vmsvga_fifo_read_raw(struct vmsvga_state_s *s)
581 {
582 uint32_t cmd = s->fifo[s->fifo_stop >> 2];
583
584 s->fifo_stop += 4;
585 if (s->fifo_stop >= s->fifo_max) {
586 s->fifo_stop = s->fifo_min;
587 }
588 s->fifo[SVGA_FIFO_STOP] = cpu_to_le32(s->fifo_stop);
589 return cmd;
590 }
591
592 static inline uint32_t vmsvga_fifo_read(struct vmsvga_state_s *s)
593 {
594 return le32_to_cpu(vmsvga_fifo_read_raw(s));
595 }
596
597 static void vmsvga_fifo_run(struct vmsvga_state_s *s)
598 {
599 uint32_t cmd, colour;
600 int args, len;
601 int x, y, dx, dy, width, height;
602 struct vmsvga_cursor_definition_s cursor;
603 uint32_t cmd_start;
604
605 len = vmsvga_fifo_length(s);
606 while (len > 0) {
607 /* May need to go back to the start of the command if incomplete */
608 cmd_start = s->fifo_stop;
609
610 switch (cmd = vmsvga_fifo_read(s)) {
611 case SVGA_CMD_UPDATE:
612 case SVGA_CMD_UPDATE_VERBOSE:
613 len -= 5;
614 if (len < 0) {
615 goto rewind;
616 }
617
618 x = vmsvga_fifo_read(s);
619 y = vmsvga_fifo_read(s);
620 width = vmsvga_fifo_read(s);
621 height = vmsvga_fifo_read(s);
622 vmsvga_update_rect_delayed(s, x, y, width, height);
623 break;
624
625 case SVGA_CMD_RECT_FILL:
626 len -= 6;
627 if (len < 0) {
628 goto rewind;
629 }
630
631 colour = vmsvga_fifo_read(s);
632 x = vmsvga_fifo_read(s);
633 y = vmsvga_fifo_read(s);
634 width = vmsvga_fifo_read(s);
635 height = vmsvga_fifo_read(s);
636 #ifdef HW_FILL_ACCEL
637 if (vmsvga_fill_rect(s, colour, x, y, width, height) == 0) {
638 break;
639 }
640 #endif
641 args = 0;
642 goto badcmd;
643
644 case SVGA_CMD_RECT_COPY:
645 len -= 7;
646 if (len < 0) {
647 goto rewind;
648 }
649
650 x = vmsvga_fifo_read(s);
651 y = vmsvga_fifo_read(s);
652 dx = vmsvga_fifo_read(s);
653 dy = vmsvga_fifo_read(s);
654 width = vmsvga_fifo_read(s);
655 height = vmsvga_fifo_read(s);
656 #ifdef HW_RECT_ACCEL
657 if (vmsvga_copy_rect(s, x, y, dx, dy, width, height) == 0) {
658 break;
659 }
660 #endif
661 args = 0;
662 goto badcmd;
663
664 case SVGA_CMD_DEFINE_CURSOR:
665 len -= 8;
666 if (len < 0) {
667 goto rewind;
668 }
669
670 cursor.id = vmsvga_fifo_read(s);
671 cursor.hot_x = vmsvga_fifo_read(s);
672 cursor.hot_y = vmsvga_fifo_read(s);
673 cursor.width = x = vmsvga_fifo_read(s);
674 cursor.height = y = vmsvga_fifo_read(s);
675 vmsvga_fifo_read(s);
676 cursor.bpp = vmsvga_fifo_read(s);
677
678 args = SVGA_BITMAP_SIZE(x, y) + SVGA_PIXMAP_SIZE(x, y, cursor.bpp);
679 if (cursor.width > 256 ||
680 cursor.height > 256 ||
681 cursor.bpp > 32 ||
682 SVGA_BITMAP_SIZE(x, y) > sizeof cursor.mask ||
683 SVGA_PIXMAP_SIZE(x, y, cursor.bpp) > sizeof cursor.image) {
684 goto badcmd;
685 }
686
687 len -= args;
688 if (len < 0) {
689 goto rewind;
690 }
691
692 for (args = 0; args < SVGA_BITMAP_SIZE(x, y); args++) {
693 cursor.mask[args] = vmsvga_fifo_read_raw(s);
694 }
695 for (args = 0; args < SVGA_PIXMAP_SIZE(x, y, cursor.bpp); args++) {
696 cursor.image[args] = vmsvga_fifo_read_raw(s);
697 }
698 #ifdef HW_MOUSE_ACCEL
699 vmsvga_cursor_define(s, &cursor);
700 break;
701 #else
702 args = 0;
703 goto badcmd;
704 #endif
705
706 /*
707 * Other commands that we at least know the number of arguments
708 * for so we can avoid FIFO desync if driver uses them illegally.
709 */
710 case SVGA_CMD_DEFINE_ALPHA_CURSOR:
711 len -= 6;
712 if (len < 0) {
713 goto rewind;
714 }
715 vmsvga_fifo_read(s);
716 vmsvga_fifo_read(s);
717 vmsvga_fifo_read(s);
718 x = vmsvga_fifo_read(s);
719 y = vmsvga_fifo_read(s);
720 args = x * y;
721 goto badcmd;
722 case SVGA_CMD_RECT_ROP_FILL:
723 args = 6;
724 goto badcmd;
725 case SVGA_CMD_RECT_ROP_COPY:
726 args = 7;
727 goto badcmd;
728 case SVGA_CMD_DRAW_GLYPH_CLIPPED:
729 len -= 4;
730 if (len < 0) {
731 goto rewind;
732 }
733 vmsvga_fifo_read(s);
734 vmsvga_fifo_read(s);
735 args = 7 + (vmsvga_fifo_read(s) >> 2);
736 goto badcmd;
737 case SVGA_CMD_SURFACE_ALPHA_BLEND:
738 args = 12;
739 goto badcmd;
740
741 /*
742 * Other commands that are not listed as depending on any
743 * CAPABILITIES bits, but are not described in the README either.
744 */
745 case SVGA_CMD_SURFACE_FILL:
746 case SVGA_CMD_SURFACE_COPY:
747 case SVGA_CMD_FRONT_ROP_FILL:
748 case SVGA_CMD_FENCE:
749 case SVGA_CMD_INVALID_CMD:
750 break; /* Nop */
751
752 default:
753 args = 0;
754 badcmd:
755 len -= args;
756 if (len < 0) {
757 goto rewind;
758 }
759 while (args--) {
760 vmsvga_fifo_read(s);
761 }
762 printf("%s: Unknown command 0x%02x in SVGA command FIFO\n",
763 __func__, cmd);
764 break;
765
766 rewind:
767 s->fifo_stop = cmd_start;
768 s->fifo[SVGA_FIFO_STOP] = cpu_to_le32(s->fifo_stop);
769 break;
770 }
771 }
772
773 s->syncing = 0;
774 }
775
776 static uint32_t vmsvga_index_read(void *opaque, uint32_t address)
777 {
778 struct vmsvga_state_s *s = opaque;
779
780 return s->index;
781 }
782
783 static void vmsvga_index_write(void *opaque, uint32_t address, uint32_t index)
784 {
785 struct vmsvga_state_s *s = opaque;
786
787 s->index = index;
788 }
789
790 static uint32_t vmsvga_value_read(void *opaque, uint32_t address)
791 {
792 uint32_t caps;
793 struct vmsvga_state_s *s = opaque;
794 DisplaySurface *surface = qemu_console_surface(s->vga.con);
795 PixelFormat pf;
796 uint32_t ret;
797
798 switch (s->index) {
799 case SVGA_REG_ID:
800 ret = s->svgaid;
801 break;
802
803 case SVGA_REG_ENABLE:
804 ret = s->enable;
805 break;
806
807 case SVGA_REG_WIDTH:
808 ret = s->new_width ? s->new_width : surface_width(surface);
809 break;
810
811 case SVGA_REG_HEIGHT:
812 ret = s->new_height ? s->new_height : surface_height(surface);
813 break;
814
815 case SVGA_REG_MAX_WIDTH:
816 ret = SVGA_MAX_WIDTH;
817 break;
818
819 case SVGA_REG_MAX_HEIGHT:
820 ret = SVGA_MAX_HEIGHT;
821 break;
822
823 case SVGA_REG_DEPTH:
824 ret = (s->new_depth == 32) ? 24 : s->new_depth;
825 break;
826
827 case SVGA_REG_BITS_PER_PIXEL:
828 case SVGA_REG_HOST_BITS_PER_PIXEL:
829 ret = s->new_depth;
830 break;
831
832 case SVGA_REG_PSEUDOCOLOR:
833 ret = 0x0;
834 break;
835
836 case SVGA_REG_RED_MASK:
837 pf = qemu_default_pixelformat(s->new_depth);
838 ret = pf.rmask;
839 break;
840
841 case SVGA_REG_GREEN_MASK:
842 pf = qemu_default_pixelformat(s->new_depth);
843 ret = pf.gmask;
844 break;
845
846 case SVGA_REG_BLUE_MASK:
847 pf = qemu_default_pixelformat(s->new_depth);
848 ret = pf.bmask;
849 break;
850
851 case SVGA_REG_BYTES_PER_LINE:
852 if (s->new_width) {
853 ret = (s->new_depth * s->new_width) / 8;
854 } else {
855 ret = surface_stride(surface);
856 }
857 break;
858
859 case SVGA_REG_FB_START: {
860 struct pci_vmsvga_state_s *pci_vmsvga
861 = container_of(s, struct pci_vmsvga_state_s, chip);
862 ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 1);
863 break;
864 }
865
866 case SVGA_REG_FB_OFFSET:
867 ret = 0x0;
868 break;
869
870 case SVGA_REG_VRAM_SIZE:
871 ret = s->vga.vram_size; /* No physical VRAM besides the framebuffer */
872 break;
873
874 case SVGA_REG_FB_SIZE:
875 ret = s->vga.vram_size;
876 break;
877
878 case SVGA_REG_CAPABILITIES:
879 caps = SVGA_CAP_NONE;
880 #ifdef HW_RECT_ACCEL
881 caps |= SVGA_CAP_RECT_COPY;
882 #endif
883 #ifdef HW_FILL_ACCEL
884 caps |= SVGA_CAP_RECT_FILL;
885 #endif
886 #ifdef HW_MOUSE_ACCEL
887 if (dpy_cursor_define_supported(s->vga.con)) {
888 caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 |
889 SVGA_CAP_CURSOR_BYPASS;
890 }
891 #endif
892 ret = caps;
893 break;
894
895 case SVGA_REG_MEM_START: {
896 struct pci_vmsvga_state_s *pci_vmsvga
897 = container_of(s, struct pci_vmsvga_state_s, chip);
898 ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 2);
899 break;
900 }
901
902 case SVGA_REG_MEM_SIZE:
903 ret = s->fifo_size;
904 break;
905
906 case SVGA_REG_CONFIG_DONE:
907 ret = s->config;
908 break;
909
910 case SVGA_REG_SYNC:
911 case SVGA_REG_BUSY:
912 ret = s->syncing;
913 break;
914
915 case SVGA_REG_GUEST_ID:
916 ret = s->guest;
917 break;
918
919 case SVGA_REG_CURSOR_ID:
920 ret = s->cursor.id;
921 break;
922
923 case SVGA_REG_CURSOR_X:
924 ret = s->cursor.x;
925 break;
926
927 case SVGA_REG_CURSOR_Y:
928 ret = s->cursor.y;
929 break;
930
931 case SVGA_REG_CURSOR_ON:
932 ret = s->cursor.on;
933 break;
934
935 case SVGA_REG_SCRATCH_SIZE:
936 ret = s->scratch_size;
937 break;
938
939 case SVGA_REG_MEM_REGS:
940 case SVGA_REG_NUM_DISPLAYS:
941 case SVGA_REG_PITCHLOCK:
942 case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
943 ret = 0;
944 break;
945
946 default:
947 if (s->index >= SVGA_SCRATCH_BASE &&
948 s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
949 ret = s->scratch[s->index - SVGA_SCRATCH_BASE];
950 break;
951 }
952 printf("%s: Bad register %02x\n", __func__, s->index);
953 ret = 0;
954 break;
955 }
956
957 if (s->index >= SVGA_SCRATCH_BASE) {
958 trace_vmware_scratch_read(s->index, ret);
959 } else if (s->index >= SVGA_PALETTE_BASE) {
960 trace_vmware_palette_read(s->index, ret);
961 } else {
962 trace_vmware_value_read(s->index, ret);
963 }
964 return ret;
965 }
966
967 static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value)
968 {
969 struct vmsvga_state_s *s = opaque;
970
971 if (s->index >= SVGA_SCRATCH_BASE) {
972 trace_vmware_scratch_write(s->index, value);
973 } else if (s->index >= SVGA_PALETTE_BASE) {
974 trace_vmware_palette_write(s->index, value);
975 } else {
976 trace_vmware_value_write(s->index, value);
977 }
978 switch (s->index) {
979 case SVGA_REG_ID:
980 if (value == SVGA_ID_2 || value == SVGA_ID_1 || value == SVGA_ID_0) {
981 s->svgaid = value;
982 }
983 break;
984
985 case SVGA_REG_ENABLE:
986 s->enable = !!value;
987 s->invalidated = 1;
988 s->vga.hw_ops->invalidate(&s->vga);
989 if (s->enable && s->config) {
990 vga_dirty_log_stop(&s->vga);
991 } else {
992 vga_dirty_log_start(&s->vga);
993 }
994 break;
995
996 case SVGA_REG_WIDTH:
997 if (value <= SVGA_MAX_WIDTH) {
998 s->new_width = value;
999 s->invalidated = 1;
1000 } else {
1001 printf("%s: Bad width: %i\n", __func__, value);
1002 }
1003 break;
1004
1005 case SVGA_REG_HEIGHT:
1006 if (value <= SVGA_MAX_HEIGHT) {
1007 s->new_height = value;
1008 s->invalidated = 1;
1009 } else {
1010 printf("%s: Bad height: %i\n", __func__, value);
1011 }
1012 break;
1013
1014 case SVGA_REG_BITS_PER_PIXEL:
1015 if (value != 32) {
1016 printf("%s: Bad bits per pixel: %i bits\n", __func__, value);
1017 s->config = 0;
1018 s->invalidated = 1;
1019 }
1020 break;
1021
1022 case SVGA_REG_CONFIG_DONE:
1023 if (value) {
1024 s->fifo = (uint32_t *) s->fifo_ptr;
1025 vga_dirty_log_stop(&s->vga);
1026 }
1027 s->config = !!value;
1028 break;
1029
1030 case SVGA_REG_SYNC:
1031 s->syncing = 1;
1032 vmsvga_fifo_run(s); /* Or should we just wait for update_display? */
1033 break;
1034
1035 case SVGA_REG_GUEST_ID:
1036 s->guest = value;
1037 #ifdef VERBOSE
1038 if (value >= GUEST_OS_BASE && value < GUEST_OS_BASE +
1039 ARRAY_SIZE(vmsvga_guest_id)) {
1040 printf("%s: guest runs %s.\n", __func__,
1041 vmsvga_guest_id[value - GUEST_OS_BASE]);
1042 }
1043 #endif
1044 break;
1045
1046 case SVGA_REG_CURSOR_ID:
1047 s->cursor.id = value;
1048 break;
1049
1050 case SVGA_REG_CURSOR_X:
1051 s->cursor.x = value;
1052 break;
1053
1054 case SVGA_REG_CURSOR_Y:
1055 s->cursor.y = value;
1056 break;
1057
1058 case SVGA_REG_CURSOR_ON:
1059 s->cursor.on |= (value == SVGA_CURSOR_ON_SHOW);
1060 s->cursor.on &= (value != SVGA_CURSOR_ON_HIDE);
1061 #ifdef HW_MOUSE_ACCEL
1062 if (value <= SVGA_CURSOR_ON_SHOW) {
1063 dpy_mouse_set(s->vga.con, s->cursor.x, s->cursor.y, s->cursor.on);
1064 }
1065 #endif
1066 break;
1067
1068 case SVGA_REG_DEPTH:
1069 case SVGA_REG_MEM_REGS:
1070 case SVGA_REG_NUM_DISPLAYS:
1071 case SVGA_REG_PITCHLOCK:
1072 case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
1073 break;
1074
1075 default:
1076 if (s->index >= SVGA_SCRATCH_BASE &&
1077 s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
1078 s->scratch[s->index - SVGA_SCRATCH_BASE] = value;
1079 break;
1080 }
1081 printf("%s: Bad register %02x\n", __func__, s->index);
1082 }
1083 }
1084
1085 static uint32_t vmsvga_bios_read(void *opaque, uint32_t address)
1086 {
1087 printf("%s: what are we supposed to return?\n", __func__);
1088 return 0xcafe;
1089 }
1090
1091 static void vmsvga_bios_write(void *opaque, uint32_t address, uint32_t data)
1092 {
1093 printf("%s: what are we supposed to do with (%08x)?\n", __func__, data);
1094 }
1095
1096 static inline void vmsvga_check_size(struct vmsvga_state_s *s)
1097 {
1098 DisplaySurface *surface = qemu_console_surface(s->vga.con);
1099
1100 if (s->new_width != surface_width(surface) ||
1101 s->new_height != surface_height(surface) ||
1102 s->new_depth != surface_bits_per_pixel(surface)) {
1103 int stride = (s->new_depth * s->new_width) / 8;
1104 pixman_format_code_t format =
1105 qemu_default_pixman_format(s->new_depth, true);
1106 trace_vmware_setmode(s->new_width, s->new_height, s->new_depth);
1107 surface = qemu_create_displaysurface_from(s->new_width, s->new_height,
1108 format, stride,
1109 s->vga.vram_ptr);
1110 dpy_gfx_replace_surface(s->vga.con, surface);
1111 s->invalidated = 1;
1112 }
1113 }
1114
1115 static void vmsvga_update_display(void *opaque)
1116 {
1117 struct vmsvga_state_s *s = opaque;
1118 DisplaySurface *surface;
1119 bool dirty = false;
1120
1121 if (!s->enable) {
1122 s->vga.hw_ops->gfx_update(&s->vga);
1123 return;
1124 }
1125
1126 vmsvga_check_size(s);
1127 surface = qemu_console_surface(s->vga.con);
1128
1129 vmsvga_fifo_run(s);
1130 vmsvga_update_rect_flush(s);
1131
1132 /*
1133 * Is it more efficient to look at vram VGA-dirty bits or wait
1134 * for the driver to issue SVGA_CMD_UPDATE?
1135 */
1136 if (memory_region_is_logging(&s->vga.vram, DIRTY_MEMORY_VGA)) {
1137 vga_sync_dirty_bitmap(&s->vga);
1138 dirty = memory_region_get_dirty(&s->vga.vram, 0,
1139 surface_stride(surface) * surface_height(surface),
1140 DIRTY_MEMORY_VGA);
1141 }
1142 if (s->invalidated || dirty) {
1143 s->invalidated = 0;
1144 dpy_gfx_update(s->vga.con, 0, 0,
1145 surface_width(surface), surface_height(surface));
1146 }
1147 if (dirty) {
1148 memory_region_reset_dirty(&s->vga.vram, 0,
1149 surface_stride(surface) * surface_height(surface),
1150 DIRTY_MEMORY_VGA);
1151 }
1152 }
1153
1154 static void vmsvga_reset(DeviceState *dev)
1155 {
1156 struct pci_vmsvga_state_s *pci = VMWARE_SVGA(dev);
1157 struct vmsvga_state_s *s = &pci->chip;
1158
1159 s->index = 0;
1160 s->enable = 0;
1161 s->config = 0;
1162 s->svgaid = SVGA_ID;
1163 s->cursor.on = 0;
1164 s->redraw_fifo_first = 0;
1165 s->redraw_fifo_last = 0;
1166 s->syncing = 0;
1167
1168 vga_dirty_log_start(&s->vga);
1169 }
1170
1171 static void vmsvga_invalidate_display(void *opaque)
1172 {
1173 struct vmsvga_state_s *s = opaque;
1174 if (!s->enable) {
1175 s->vga.hw_ops->invalidate(&s->vga);
1176 return;
1177 }
1178
1179 s->invalidated = 1;
1180 }
1181
1182 static void vmsvga_text_update(void *opaque, console_ch_t *chardata)
1183 {
1184 struct vmsvga_state_s *s = opaque;
1185
1186 if (s->vga.hw_ops->text_update) {
1187 s->vga.hw_ops->text_update(&s->vga, chardata);
1188 }
1189 }
1190
1191 static int vmsvga_post_load(void *opaque, int version_id)
1192 {
1193 struct vmsvga_state_s *s = opaque;
1194
1195 s->invalidated = 1;
1196 if (s->config) {
1197 s->fifo = (uint32_t *) s->fifo_ptr;
1198 }
1199 return 0;
1200 }
1201
1202 static const VMStateDescription vmstate_vmware_vga_internal = {
1203 .name = "vmware_vga_internal",
1204 .version_id = 0,
1205 .minimum_version_id = 0,
1206 .post_load = vmsvga_post_load,
1207 .fields = (VMStateField[]) {
1208 VMSTATE_INT32_EQUAL(new_depth, struct vmsvga_state_s),
1209 VMSTATE_INT32(enable, struct vmsvga_state_s),
1210 VMSTATE_INT32(config, struct vmsvga_state_s),
1211 VMSTATE_INT32(cursor.id, struct vmsvga_state_s),
1212 VMSTATE_INT32(cursor.x, struct vmsvga_state_s),
1213 VMSTATE_INT32(cursor.y, struct vmsvga_state_s),
1214 VMSTATE_INT32(cursor.on, struct vmsvga_state_s),
1215 VMSTATE_INT32(index, struct vmsvga_state_s),
1216 VMSTATE_VARRAY_INT32(scratch, struct vmsvga_state_s,
1217 scratch_size, 0, vmstate_info_uint32, uint32_t),
1218 VMSTATE_INT32(new_width, struct vmsvga_state_s),
1219 VMSTATE_INT32(new_height, struct vmsvga_state_s),
1220 VMSTATE_UINT32(guest, struct vmsvga_state_s),
1221 VMSTATE_UINT32(svgaid, struct vmsvga_state_s),
1222 VMSTATE_INT32(syncing, struct vmsvga_state_s),
1223 VMSTATE_UNUSED(4), /* was fb_size */
1224 VMSTATE_END_OF_LIST()
1225 }
1226 };
1227
1228 static const VMStateDescription vmstate_vmware_vga = {
1229 .name = "vmware_vga",
1230 .version_id = 0,
1231 .minimum_version_id = 0,
1232 .fields = (VMStateField[]) {
1233 VMSTATE_PCI_DEVICE(parent_obj, struct pci_vmsvga_state_s),
1234 VMSTATE_STRUCT(chip, struct pci_vmsvga_state_s, 0,
1235 vmstate_vmware_vga_internal, struct vmsvga_state_s),
1236 VMSTATE_END_OF_LIST()
1237 }
1238 };
1239
1240 static const GraphicHwOps vmsvga_ops = {
1241 .invalidate = vmsvga_invalidate_display,
1242 .gfx_update = vmsvga_update_display,
1243 .text_update = vmsvga_text_update,
1244 };
1245
1246 static void vmsvga_init(DeviceState *dev, struct vmsvga_state_s *s,
1247 MemoryRegion *address_space, MemoryRegion *io)
1248 {
1249 s->scratch_size = SVGA_SCRATCH_SIZE;
1250 s->scratch = g_malloc(s->scratch_size * 4);
1251
1252 s->vga.con = graphic_console_init(dev, 0, &vmsvga_ops, s);
1253
1254 s->fifo_size = SVGA_FIFO_SIZE;
1255 memory_region_init_ram(&s->fifo_ram, NULL, "vmsvga.fifo", s->fifo_size,
1256 &error_fatal);
1257 vmstate_register_ram_global(&s->fifo_ram);
1258 s->fifo_ptr = memory_region_get_ram_ptr(&s->fifo_ram);
1259
1260 vga_common_init(&s->vga, OBJECT(dev), true);
1261 vga_init(&s->vga, OBJECT(dev), address_space, io, true);
1262 vmstate_register(NULL, 0, &vmstate_vga_common, &s->vga);
1263 s->new_depth = 32;
1264 }
1265
1266 static uint64_t vmsvga_io_read(void *opaque, hwaddr addr, unsigned size)
1267 {
1268 struct vmsvga_state_s *s = opaque;
1269
1270 switch (addr) {
1271 case SVGA_IO_MUL * SVGA_INDEX_PORT: return vmsvga_index_read(s, addr);
1272 case SVGA_IO_MUL * SVGA_VALUE_PORT: return vmsvga_value_read(s, addr);
1273 case SVGA_IO_MUL * SVGA_BIOS_PORT: return vmsvga_bios_read(s, addr);
1274 default: return -1u;
1275 }
1276 }
1277
1278 static void vmsvga_io_write(void *opaque, hwaddr addr,
1279 uint64_t data, unsigned size)
1280 {
1281 struct vmsvga_state_s *s = opaque;
1282
1283 switch (addr) {
1284 case SVGA_IO_MUL * SVGA_INDEX_PORT:
1285 vmsvga_index_write(s, addr, data);
1286 break;
1287 case SVGA_IO_MUL * SVGA_VALUE_PORT:
1288 vmsvga_value_write(s, addr, data);
1289 break;
1290 case SVGA_IO_MUL * SVGA_BIOS_PORT:
1291 vmsvga_bios_write(s, addr, data);
1292 break;
1293 }
1294 }
1295
1296 static const MemoryRegionOps vmsvga_io_ops = {
1297 .read = vmsvga_io_read,
1298 .write = vmsvga_io_write,
1299 .endianness = DEVICE_LITTLE_ENDIAN,
1300 .valid = {
1301 .min_access_size = 4,
1302 .max_access_size = 4,
1303 .unaligned = true,
1304 },
1305 .impl = {
1306 .unaligned = true,
1307 },
1308 };
1309
1310 static void pci_vmsvga_realize(PCIDevice *dev, Error **errp)
1311 {
1312 struct pci_vmsvga_state_s *s = VMWARE_SVGA(dev);
1313
1314 dev->config[PCI_CACHE_LINE_SIZE] = 0x08;
1315 dev->config[PCI_LATENCY_TIMER] = 0x40;
1316 dev->config[PCI_INTERRUPT_LINE] = 0xff; /* End */
1317
1318 memory_region_init_io(&s->io_bar, NULL, &vmsvga_io_ops, &s->chip,
1319 "vmsvga-io", 0x10);
1320 memory_region_set_flush_coalesced(&s->io_bar);
1321 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
1322
1323 vmsvga_init(DEVICE(dev), &s->chip,
1324 pci_address_space(dev), pci_address_space_io(dev));
1325
1326 pci_register_bar(dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH,
1327 &s->chip.vga.vram);
1328 pci_register_bar(dev, 2, PCI_BASE_ADDRESS_MEM_PREFETCH,
1329 &s->chip.fifo_ram);
1330
1331 if (!dev->rom_bar) {
1332 /* compatibility with pc-0.13 and older */
1333 vga_init_vbe(&s->chip.vga, OBJECT(dev), pci_address_space(dev));
1334 }
1335 }
1336
1337 static Property vga_vmware_properties[] = {
1338 DEFINE_PROP_UINT32("vgamem_mb", struct pci_vmsvga_state_s,
1339 chip.vga.vram_size_mb, 16),
1340 DEFINE_PROP_END_OF_LIST(),
1341 };
1342
1343 static void vmsvga_class_init(ObjectClass *klass, void *data)
1344 {
1345 DeviceClass *dc = DEVICE_CLASS(klass);
1346 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1347
1348 k->realize = pci_vmsvga_realize;
1349 k->romfile = "vgabios-vmware.bin";
1350 k->vendor_id = PCI_VENDOR_ID_VMWARE;
1351 k->device_id = SVGA_PCI_DEVICE_ID;
1352 k->class_id = PCI_CLASS_DISPLAY_VGA;
1353 k->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
1354 k->subsystem_id = SVGA_PCI_DEVICE_ID;
1355 dc->reset = vmsvga_reset;
1356 dc->vmsd = &vmstate_vmware_vga;
1357 dc->props = vga_vmware_properties;
1358 dc->hotpluggable = false;
1359 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
1360 }
1361
1362 static const TypeInfo vmsvga_info = {
1363 .name = TYPE_VMWARE_SVGA,
1364 .parent = TYPE_PCI_DEVICE,
1365 .instance_size = sizeof(struct pci_vmsvga_state_s),
1366 .class_init = vmsvga_class_init,
1367 };
1368
1369 static void vmsvga_register_types(void)
1370 {
1371 type_register_static(&vmsvga_info);
1372 }
1373
1374 type_init(vmsvga_register_types)