Annotation of sys/arch/hppa/include/bus.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: bus.h,v 1.25 2007/05/23 18:07:19 kettenis Exp $ */
2:
3: /*
4: * Copyright (c) 1998-2004 Michael Shalayeff
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22: * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25: * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26: * THE POSSIBILITY OF SUCH DAMAGE.
27: */
28:
29:
30: #ifndef _MACHINE_BUS_H_
31: #define _MACHINE_BUS_H_
32:
33: #include <machine/cpufunc.h>
34:
35: /* addresses in bus space */
36: typedef u_long bus_addr_t;
37: typedef u_long bus_size_t;
38:
39: /* access methods for bus space */
40: typedef u_long bus_space_handle_t;
41:
42: struct hppa_bus_space_tag {
43: void *hbt_cookie;
44:
45: int (*hbt_map)(void *v, bus_addr_t addr, bus_size_t size,
46: int flags, bus_space_handle_t *bshp);
47: void (*hbt_unmap)(void *v, bus_space_handle_t bsh,
48: bus_size_t size);
49: int (*hbt_subregion)(void *v, bus_space_handle_t bsh,
50: bus_size_t offset, bus_size_t size,
51: bus_space_handle_t *nbshp);
52: int (*hbt_alloc)(void *v, bus_addr_t rstart, bus_addr_t rend,
53: bus_size_t size, bus_size_t align,
54: bus_size_t boundary, int flags,
55: bus_addr_t *addrp, bus_space_handle_t *bshp);
56: void (*hbt_free)(void *, bus_space_handle_t, bus_size_t);
57: void (*hbt_barrier)(void *v, bus_space_handle_t h,
58: bus_size_t o, bus_size_t l, int op);
59: void *(*hbt_vaddr)(void *v, bus_space_handle_t h);
60:
61: u_int8_t (*hbt_r1)(void *, bus_space_handle_t, bus_size_t);
62: u_int16_t (*hbt_r2)(void *, bus_space_handle_t, bus_size_t);
63: u_int32_t (*hbt_r4)(void *, bus_space_handle_t, bus_size_t);
64: u_int64_t (*hbt_r8)(void *, bus_space_handle_t, bus_size_t);
65:
66: void (*hbt_w1)(void *, bus_space_handle_t, bus_size_t, u_int8_t);
67: void (*hbt_w2)(void *, bus_space_handle_t, bus_size_t, u_int16_t);
68: void (*hbt_w4)(void *, bus_space_handle_t, bus_size_t, u_int32_t);
69: void (*hbt_w8)(void *, bus_space_handle_t, bus_size_t, u_int64_t);
70:
71: void (*hbt_rm_1)(void *v, bus_space_handle_t h,
72: bus_size_t o, u_int8_t *a, bus_size_t c);
73: void (*hbt_rm_2)(void *v, bus_space_handle_t h,
74: bus_size_t o, u_int16_t *a, bus_size_t c);
75: void (*hbt_rm_4)(void *v, bus_space_handle_t h,
76: bus_size_t o, u_int32_t *a, bus_size_t c);
77: void (*hbt_rm_8)(void *v, bus_space_handle_t h,
78: bus_size_t o, u_int64_t *a, bus_size_t c);
79:
80: void (*hbt_wm_1)(void *v, bus_space_handle_t h, bus_size_t o,
81: const u_int8_t *a, bus_size_t c);
82: void (*hbt_wm_2)(void *v, bus_space_handle_t h, bus_size_t o,
83: const u_int16_t *a, bus_size_t c);
84: void (*hbt_wm_4)(void *v, bus_space_handle_t h, bus_size_t o,
85: const u_int32_t *a, bus_size_t c);
86: void (*hbt_wm_8)(void *v, bus_space_handle_t h, bus_size_t o,
87: const u_int64_t *a, bus_size_t c);
88:
89: void (*hbt_sm_1)(void *v, bus_space_handle_t h, bus_size_t o,
90: u_int8_t vv, bus_size_t c);
91: void (*hbt_sm_2)(void *v, bus_space_handle_t h, bus_size_t o,
92: u_int16_t vv, bus_size_t c);
93: void (*hbt_sm_4)(void *v, bus_space_handle_t h, bus_size_t o,
94: u_int32_t vv, bus_size_t c);
95: void (*hbt_sm_8)(void *v, bus_space_handle_t h, bus_size_t o,
96: u_int64_t vv, bus_size_t c);
97:
98: void (*hbt_rrm_2)(void *v, bus_space_handle_t h,
99: bus_size_t o, u_int8_t *a, bus_size_t c);
100: void (*hbt_rrm_4)(void *v, bus_space_handle_t h,
101: bus_size_t o, u_int8_t *a, bus_size_t c);
102: void (*hbt_rrm_8)(void *v, bus_space_handle_t h,
103: bus_size_t o, u_int8_t *a, bus_size_t c);
104:
105: void (*hbt_wrm_2)(void *v, bus_space_handle_t h,
106: bus_size_t o, const u_int8_t *a, bus_size_t c);
107: void (*hbt_wrm_4)(void *v, bus_space_handle_t h,
108: bus_size_t o, const u_int8_t *a, bus_size_t c);
109: void (*hbt_wrm_8)(void *v, bus_space_handle_t h,
110: bus_size_t o, const u_int8_t *a, bus_size_t c);
111:
112: void (*hbt_rr_1)(void *v, bus_space_handle_t h,
113: bus_size_t o, u_int8_t *a, bus_size_t c);
114: void (*hbt_rr_2)(void *v, bus_space_handle_t h,
115: bus_size_t o, u_int16_t *a, bus_size_t c);
116: void (*hbt_rr_4)(void *v, bus_space_handle_t h,
117: bus_size_t o, u_int32_t *a, bus_size_t c);
118: void (*hbt_rr_8)(void *v, bus_space_handle_t h,
119: bus_size_t o, u_int64_t *a, bus_size_t c);
120:
121: void (*hbt_wr_1)(void *v, bus_space_handle_t h,
122: bus_size_t o, const u_int8_t *a, bus_size_t c);
123: void (*hbt_wr_2)(void *v, bus_space_handle_t h,
124: bus_size_t o, const u_int16_t *a, bus_size_t c);
125: void (*hbt_wr_4)(void *v, bus_space_handle_t h,
126: bus_size_t o, const u_int32_t *a, bus_size_t c);
127: void (*hbt_wr_8)(void *v, bus_space_handle_t h,
128: bus_size_t o, const u_int64_t *a, bus_size_t c);
129:
130: void (*hbt_rrr_2)(void *v, bus_space_handle_t h,
131: bus_size_t o, u_int8_t *a, bus_size_t c);
132: void (*hbt_rrr_4)(void *v, bus_space_handle_t h,
133: bus_size_t o, u_int8_t *a, bus_size_t c);
134: void (*hbt_rrr_8)(void *v, bus_space_handle_t h,
135: bus_size_t o, u_int8_t *a, bus_size_t c);
136:
137: void (*hbt_wrr_2)(void *v, bus_space_handle_t h,
138: bus_size_t o, const u_int8_t *a, bus_size_t c);
139: void (*hbt_wrr_4)(void *v, bus_space_handle_t h,
140: bus_size_t o, const u_int8_t *a, bus_size_t c);
141: void (*hbt_wrr_8)(void *v, bus_space_handle_t h,
142: bus_size_t o, const u_int8_t *a, bus_size_t c);
143:
144: void (*hbt_sr_1)(void *v, bus_space_handle_t h,
145: bus_size_t o, u_int8_t vv, bus_size_t c);
146: void (*hbt_sr_2)(void *v, bus_space_handle_t h,
147: bus_size_t o, u_int16_t vv, bus_size_t c);
148: void (*hbt_sr_4)(void *v, bus_space_handle_t h,
149: bus_size_t o, u_int32_t vv, bus_size_t c);
150: void (*hbt_sr_8)(void *v, bus_space_handle_t h,
151: bus_size_t o, u_int64_t vv, bus_size_t c);
152:
153: void (*hbt_cp_1)(void *v, bus_space_handle_t h1, bus_size_t o1,
154: bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
155: void (*hbt_cp_2)(void *v, bus_space_handle_t h1, bus_size_t o1,
156: bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
157: void (*hbt_cp_4)(void *v, bus_space_handle_t h1, bus_size_t o1,
158: bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
159: void (*hbt_cp_8)(void *v, bus_space_handle_t h1, bus_size_t o1,
160: bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
161: };
162: typedef const struct hppa_bus_space_tag *bus_space_tag_t;
163: extern const struct hppa_bus_space_tag hppa_bustag;
164:
165: /* flags for bus space map functions */
166: #define BUS_SPACE_MAP_CACHEABLE 0x0001
167: #define BUS_SPACE_MAP_LINEAR 0x0002
168: #define BUS_SPACE_MAP_READONLY 0x0004
169: #define BUS_SPACE_MAP_PREFETCHABLE 0x0008
170: #define BUS_SPACE_MAP_NOEXTENT 0x8000 /* no extent ops */
171:
172: /* bus access routines */
173:
174: #define bus_space_map(t,a,c,ca,hp) \
175: (((t)->hbt_map)((t)->hbt_cookie,(a),(c),(ca),(hp)))
176: #define bus_space_unmap(t,h,c) \
177: (((t)->hbt_unmap)((t)->hbt_cookie,(h),(c)))
178: #define bus_space_subregion(t,h,o,c,hp) \
179: (((t)->hbt_subregion)((t)->hbt_cookie,(h),(o),(c),(hp)))
180: #define bus_space_alloc(t,b,e,c,al,bn,ca,ap,hp) \
181: (((t)->hbt_alloc)((t)->hbt_cookie,(b),(e),(c),(al),(bn),(ca),(ap),(hp)))
182: #define bus_space_free(t,h,c) \
183: (((t)->hbt_free)((t)->hbt_cookie,(h),(c)))
184:
185: #define bus_space_read_1(t,h,o) (((t)->hbt_r1)((t)->hbt_cookie,(h),(o)))
186: #define bus_space_read_2(t,h,o) (((t)->hbt_r2)((t)->hbt_cookie,(h),(o)))
187: #define bus_space_read_4(t,h,o) (((t)->hbt_r4)((t)->hbt_cookie,(h),(o)))
188: #define bus_space_read_8(t,h,o) (((t)->hbt_r8)((t)->hbt_cookie,(h),(o)))
189:
190: #define bus_space_write_1(t,h,o,v) (((t)->hbt_w1)((t)->hbt_cookie,(h),(o),(v)))
191: #define bus_space_write_2(t,h,o,v) (((t)->hbt_w2)((t)->hbt_cookie,(h),(o),(v)))
192: #define bus_space_write_4(t,h,o,v) (((t)->hbt_w4)((t)->hbt_cookie,(h),(o),(v)))
193: #define bus_space_write_8(t,h,o,v) (((t)->hbt_w8)((t)->hbt_cookie,(h),(o),(v)))
194:
195: #define bus_space_read_multi_1(t,h,o,a,c) \
196: (((t)->hbt_rm_1)((t)->hbt_cookie, (h), (o), (a), (c)))
197: #define bus_space_read_multi_2(t,h,o,a,c) \
198: (((t)->hbt_rm_2)((t)->hbt_cookie, (h), (o), (a), (c)))
199: #define bus_space_read_multi_4(t,h,o,a,c) \
200: (((t)->hbt_rm_4)((t)->hbt_cookie, (h), (o), (a), (c)))
201: #define bus_space_read_multi_8(t,h,o,a,c) \
202: (((t)->hbt_rm_8)((t)->hbt_cookie, (h), (o), (a), (c)))
203:
204: #define bus_space_write_multi_1(t,h,o,a,c) \
205: (((t)->hbt_wm_1)((t)->hbt_cookie, (h), (o), (a), (c)))
206: #define bus_space_write_multi_2(t,h,o,a,c) \
207: (((t)->hbt_wm_2)((t)->hbt_cookie, (h), (o), (a), (c)))
208: #define bus_space_write_multi_4(t,h,o,a,c) \
209: (((t)->hbt_wm_4)((t)->hbt_cookie, (h), (o), (a), (c)))
210: #define bus_space_write_multi_8(t,h,o,a,c) \
211: (((t)->hbt_wm_8)((t)->hbt_cookie, (h), (o), (a), (c)))
212:
213: #define bus_space_set_multi_1(t,h,o,v,c) \
214: (((t)->hbt_sm_1)((t)->hbt_cookie, (h), (o), (v), (c)))
215: #define bus_space_set_multi_2(t,h,o,v,c) \
216: (((t)->hbt_sm_2)((t)->hbt_cookie, (h), (o), (v), (c)))
217: #define bus_space_set_multi_4(t,h,o,v,c) \
218: (((t)->hbt_sm_4)((t)->hbt_cookie, (h), (o), (v), (c)))
219: #define bus_space_set_multi_8(t,h,o,v,c) \
220: (((t)->hbt_sm_8)((t)->hbt_cookie, (h), (o), (v), (c)))
221:
222: #define bus_space_read_raw_multi_2(t, h, o, a, c) \
223: (((t)->hbt_rrm_2)((t)->hbt_cookie, (h), (o), (a), (c)))
224: #define bus_space_read_raw_multi_4(t, h, o, a, c) \
225: (((t)->hbt_rrm_4)((t)->hbt_cookie, (h), (o), (a), (c)))
226: #define bus_space_read_raw_multi_8(t, h, o, a, c) \
227: (((t)->hbt_rrm_8)((t)->hbt_cookie, (h), (o), (a), (c)))
228:
229: #define bus_space_write_raw_multi_2(t, h, o, a, c) \
230: (((t)->hbt_wrm_2)((t)->hbt_cookie, (h), (o), (a), (c)))
231: #define bus_space_write_raw_multi_4(t, h, o, a, c) \
232: (((t)->hbt_wrm_4)((t)->hbt_cookie, (h), (o), (a), (c)))
233: #define bus_space_write_raw_multi_8(t, h, o, a, c) \
234: (((t)->hbt_wrm_8)((t)->hbt_cookie, (h), (o), (a), (c)))
235:
236: #define bus_space_read_region_1(t, h, o, a, c) \
237: (((t)->hbt_rr_1)((t)->hbt_cookie, (h), (o), (a), (c)))
238: #define bus_space_read_region_2(t, h, o, a, c) \
239: (((t)->hbt_rr_2)((t)->hbt_cookie, (h), (o), (a), (c)))
240: #define bus_space_read_region_4(t, h, o, a, c) \
241: (((t)->hbt_rr_4)((t)->hbt_cookie, (h), (o), (a), (c)))
242: #define bus_space_read_region_8(t, h, o, a, c) \
243: (((t)->hbt_rr_8)((t)->hbt_cookie, (h), (o), (a), (c)))
244:
245: #define bus_space_write_region_1(t, h, o, a, c) \
246: (((t)->hbt_wr_1)((t)->hbt_cookie, (h), (o), (a), (c)))
247: #define bus_space_write_region_2(t, h, o, a, c) \
248: (((t)->hbt_wr_2)((t)->hbt_cookie, (h), (o), (a), (c)))
249: #define bus_space_write_region_4(t, h, o, a, c) \
250: (((t)->hbt_wr_4)((t)->hbt_cookie, (h), (o), (a), (c)))
251: #define bus_space_write_region_8(t, h, o, a, c) \
252: (((t)->hbt_wr_8)((t)->hbt_cookie, (h), (o), (a), (c)))
253:
254: #define bus_space_read_raw_region_2(t, h, o, a, c) \
255: (((t)->hbt_rrr_2)((t)->hbt_cookie, (h), (o), (a), (c)))
256: #define bus_space_read_raw_region_4(t, h, o, a, c) \
257: (((t)->hbt_rrr_4)((t)->hbt_cookie, (h), (o), (a), (c)))
258: #define bus_space_read_raw_region_8(t, h, o, a, c) \
259: (((t)->hbt_rrr_8)((t)->hbt_cookie, (h), (o), (a), (c)))
260:
261: #define bus_space_write_raw_region_2(t, h, o, a, c) \
262: (((t)->hbt_wrr_2)((t)->hbt_cookie, (h), (o), (a), (c)))
263: #define bus_space_write_raw_region_4(t, h, o, a, c) \
264: (((t)->hbt_wrr_4)((t)->hbt_cookie, (h), (o), (a), (c)))
265: #define bus_space_write_raw_region_8(t, h, o, a, c) \
266: (((t)->hbt_wrr_8)((t)->hbt_cookie, (h), (o), (a), (c)))
267:
268: #define bus_space_set_region_1(t, h, o, v, c) \
269: (((t)->hbt_sr_1)((t)->hbt_cookie, (h), (o), (v), (c)))
270: #define bus_space_set_region_2(t, h, o, v, c) \
271: (((t)->hbt_sr_2)((t)->hbt_cookie, (h), (o), (v), (c)))
272: #define bus_space_set_region_4(t, h, o, v, c) \
273: (((t)->hbt_sr_4)((t)->hbt_cookie, (h), (o), (v), (c)))
274: #define bus_space_set_region_8(t, h, o, v, c) \
275: (((t)->hbt_sr_8)((t)->hbt_cookie, (h), (o), (v), (c)))
276:
277: #define bus_space_copy_1(t, h1, o1, h2, o2, c) \
278: (((t)->hbt_cp_1)((t)->hbt_cookie, (h1), (o1), (h2), (o2), (c)))
279: #define bus_space_copy_2(t, h1, o1, h2, o2, c) \
280: (((t)->hbt_cp_2)((t)->hbt_cookie, (h1), (o1), (h2), (o2), (c)))
281: #define bus_space_copy_4(t, h1, o1, h2, o2, c) \
282: (((t)->hbt_cp_4)((t)->hbt_cookie, (h1), (o1), (h2), (o2), (c)))
283: #define bus_space_copy_8(t, h1, o1, h2, o2, c) \
284: (((t)->hbt_cp_8)((t)->hbt_cookie, (h1), (o1), (h2), (o2), (c)))
285:
286: #define BUS_SPACE_BARRIER_READ 0
287: #define BUS_SPACE_BARRIER_WRITE 1
288:
289: #define bus_space_barrier(t,h,o,l,op) \
290: ((t)->hbt_barrier((t)->hbt_cookie, (h), (o), (l), (op)))
291: #define bus_space_vaddr(t,h) \
292: ((t)->hbt_vaddr((t)->hbt_cookie, (h)))
293:
294: #define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */
295: #define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */
296: #define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */
297: #define BUS_DMA_COHERENT 0x004 /* hint: map memory DMA coherent */
298: #define BUS_DMAMEM_NOSYNC 0x010
299: #define BUS_DMA_BUS1 0x020 /* placeholders for bus functions... */
300: #define BUS_DMA_BUS2 0x040
301: #define BUS_DMA_BUS3 0x080
302: #define BUS_DMA_BUS4 0x100
303: #define BUS_DMA_STREAMING 0x200 /* hint: sequential, unidirectional */
304: #define BUS_DMA_READ 0x400 /* mapping is device -> memory only */
305: #define BUS_DMA_WRITE 0x800 /* mapping is memory -> device only */
306:
307: /* Forwards needed by prototypes below. */
308: struct mbuf;
309: struct proc;
310: struct uio;
311:
312: /* Operations performed by bus_dmamap_sync(). */
313: #define BUS_DMASYNC_POSTREAD 0x01
314: #define BUS_DMASYNC_POSTWRITE 0x02
315: #define BUS_DMASYNC_PREREAD 0x04
316: #define BUS_DMASYNC_PREWRITE 0x08
317:
318: typedef const struct hppa_bus_dma_tag *bus_dma_tag_t;
319: typedef struct hppa_bus_dmamap *bus_dmamap_t;
320:
321: /*
322: * bus_dma_segment_t
323: *
324: * Describes a single contiguous DMA transaction. Values
325: * are suitable for programming into DMA registers.
326: */
327: struct hppa_bus_dma_segment {
328: vaddr_t _ds_va; /* needed for syncing */
329:
330: bus_addr_t ds_addr; /* DMA address */
331: bus_size_t ds_len; /* length of transfer */
332: };
333: typedef struct hppa_bus_dma_segment bus_dma_segment_t;
334:
335: /*
336: * bus_dma_tag_t
337: *
338: * A machine-dependent opaque type describing the implementation of
339: * DMA for a given bus.
340: */
341:
342: struct hppa_bus_dma_tag {
343: void *_cookie; /* cookie used in the guts */
344:
345: /*
346: * DMA mapping methods.
347: */
348: int (*_dmamap_create)(void *, bus_size_t, int,
349: bus_size_t, bus_size_t, int, bus_dmamap_t *);
350: void (*_dmamap_destroy)(void *, bus_dmamap_t);
351: int (*_dmamap_load)(void *, bus_dmamap_t, void *,
352: bus_size_t, struct proc *, int);
353: int (*_dmamap_load_mbuf)(void *, bus_dmamap_t,
354: struct mbuf *, int);
355: int (*_dmamap_load_uio)(void *, bus_dmamap_t,
356: struct uio *, int);
357: int (*_dmamap_load_raw)(void *, bus_dmamap_t,
358: bus_dma_segment_t *, int, bus_size_t, int);
359: void (*_dmamap_unload)(void *, bus_dmamap_t);
360: void (*_dmamap_sync)(void *, bus_dmamap_t, bus_addr_t,
361: bus_size_t, int);
362:
363: /*
364: * DMA memory utility functions.
365: */
366: int (*_dmamem_alloc)(void *, bus_size_t, bus_size_t,
367: bus_size_t, bus_dma_segment_t *, int, int *, int);
368: void (*_dmamem_free)(void *, bus_dma_segment_t *, int);
369: int (*_dmamem_map)(void *, bus_dma_segment_t *,
370: int, size_t, caddr_t *, int);
371: void (*_dmamem_unmap)(void *, caddr_t, size_t);
372: paddr_t (*_dmamem_mmap)(void *, bus_dma_segment_t *,
373: int, off_t, int, int);
374: };
375:
376: #define bus_dmamap_create(t, s, n, m, b, f, p) \
377: (*(t)->_dmamap_create)((t)->_cookie, (s), (n), (m), (b), (f), (p))
378: #define bus_dmamap_destroy(t, p) \
379: (*(t)->_dmamap_destroy)((t)->_cookie, (p))
380: #define bus_dmamap_load(t, m, b, s, p, f) \
381: (*(t)->_dmamap_load)((t)->_cookie, (m), (b), (s), (p), (f))
382: #define bus_dmamap_load_mbuf(t, m, b, f) \
383: (*(t)->_dmamap_load_mbuf)((t)->_cookie, (m), (b), (f))
384: #define bus_dmamap_load_uio(t, m, u, f) \
385: (*(t)->_dmamap_load_uio)((t)->_cookie, (m), (u), (f))
386: #define bus_dmamap_load_raw(t, m, sg, n, s, f) \
387: (*(t)->_dmamap_load_raw)((t)->_cookie, (m), (sg), (n), (s), (f))
388: #define bus_dmamap_unload(t, p) \
389: (*(t)->_dmamap_unload)((t)->_cookie, (p))
390: #define bus_dmamap_sync(t, p, a, l, o) \
391: (void)((t)->_dmamap_sync ? \
392: (*(t)->_dmamap_sync)((t)->_cookie, (p), (a), (l), (o)) : (void)0)
393:
394: #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \
395: (*(t)->_dmamem_alloc)((t)->_cookie, (s), (a), (b), (sg), (n), (r), (f))
396: #define bus_dmamem_free(t, sg, n) \
397: (*(t)->_dmamem_free)((t)->_cookie, (sg), (n))
398: #define bus_dmamem_map(t, sg, n, s, k, f) \
399: (*(t)->_dmamem_map)((t)->_cookie, (sg), (n), (s), (k), (f))
400: #define bus_dmamem_unmap(t, k, s) \
401: (*(t)->_dmamem_unmap)((t)->_cookie, (k), (s))
402: #define bus_dmamem_mmap(t, sg, n, o, p, f) \
403: (*(t)->_dmamem_mmap)((t)->_cookie, (sg), (n), (o), (p), (f))
404:
405: /*
406: * bus_dmamap_t
407: *
408: * Describes a DMA mapping.
409: */
410: struct hppa_bus_dmamap {
411: /*
412: * PRIVATE MEMBERS: not for use by machine-independent code.
413: */
414: bus_size_t _dm_size; /* largest DMA transfer mappable */
415: int _dm_segcnt; /* number of segs this map can map */
416: bus_size_t _dm_maxsegsz; /* largest possible segment */
417: bus_size_t _dm_boundary; /* don't cross this */
418: int _dm_flags; /* misc. flags */
419:
420: void *_dm_cookie; /* cookie for bus-specific functions */
421:
422: /*
423: * PUBLIC MEMBERS: these are used by machine-independent code.
424: */
425: bus_size_t dm_mapsize; /* size of the mapping */
426: int dm_nsegs; /* # valid segments in mapping */
427: bus_dma_segment_t dm_segs[1]; /* segments; variable length */
428: };
429:
430: #endif /* _MACHINE_BUS_H_ */
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