agp_i810.c revision 1.24 1 1.24 jmcneill /* $NetBSD: agp_i810.c,v 1.24 2005/01/27 02:43:42 jmcneill Exp $ */
2 1.1 fvdl
3 1.1 fvdl /*-
4 1.1 fvdl * Copyright (c) 2000 Doug Rabson
5 1.1 fvdl * Copyright (c) 2000 Ruslan Ermilov
6 1.1 fvdl * All rights reserved.
7 1.1 fvdl *
8 1.1 fvdl * Redistribution and use in source and binary forms, with or without
9 1.1 fvdl * modification, are permitted provided that the following conditions
10 1.1 fvdl * are met:
11 1.1 fvdl * 1. Redistributions of source code must retain the above copyright
12 1.1 fvdl * notice, this list of conditions and the following disclaimer.
13 1.1 fvdl * 2. Redistributions in binary form must reproduce the above copyright
14 1.1 fvdl * notice, this list of conditions and the following disclaimer in the
15 1.1 fvdl * documentation and/or other materials provided with the distribution.
16 1.1 fvdl *
17 1.1 fvdl * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 1.1 fvdl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 1.1 fvdl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 1.1 fvdl * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 1.1 fvdl * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 1.1 fvdl * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 1.1 fvdl * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 1.1 fvdl * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 1.1 fvdl * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 1.1 fvdl * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 1.1 fvdl * SUCH DAMAGE.
28 1.1 fvdl *
29 1.1 fvdl * $FreeBSD: src/sys/pci/agp_i810.c,v 1.4 2001/07/05 21:28:47 jhb Exp $
30 1.1 fvdl */
31 1.9 lukem
32 1.9 lukem #include <sys/cdefs.h>
33 1.24 jmcneill __KERNEL_RCSID(0, "$NetBSD: agp_i810.c,v 1.24 2005/01/27 02:43:42 jmcneill Exp $");
34 1.1 fvdl
35 1.1 fvdl #include <sys/param.h>
36 1.1 fvdl #include <sys/systm.h>
37 1.1 fvdl #include <sys/malloc.h>
38 1.1 fvdl #include <sys/kernel.h>
39 1.1 fvdl #include <sys/lock.h>
40 1.1 fvdl #include <sys/proc.h>
41 1.1 fvdl #include <sys/device.h>
42 1.1 fvdl #include <sys/conf.h>
43 1.1 fvdl
44 1.1 fvdl #include <uvm/uvm_extern.h>
45 1.1 fvdl
46 1.1 fvdl #include <dev/pci/pcivar.h>
47 1.1 fvdl #include <dev/pci/pcireg.h>
48 1.1 fvdl #include <dev/pci/pcidevs.h>
49 1.1 fvdl #include <dev/pci/agpvar.h>
50 1.1 fvdl #include <dev/pci/agpreg.h>
51 1.1 fvdl
52 1.1 fvdl #include <sys/agpio.h>
53 1.1 fvdl
54 1.1 fvdl #include <machine/bus.h>
55 1.1 fvdl
56 1.20 tron #include "agp_intel.h"
57 1.20 tron
58 1.1 fvdl #define READ1(off) bus_space_read_1(isc->bst, isc->bsh, off)
59 1.14 scw #define READ4(off) bus_space_read_4(isc->bst, isc->bsh, off)
60 1.1 fvdl #define WRITE4(off,v) bus_space_write_4(isc->bst, isc->bsh, off, v)
61 1.1 fvdl
62 1.14 scw #define CHIP_I810 0 /* i810/i815 */
63 1.17 hannken #define CHIP_I830 1 /* 830M/845G */
64 1.17 hannken #define CHIP_I855 2 /* 852GM/855GM/865G */
65 1.14 scw
66 1.1 fvdl struct agp_i810_softc {
67 1.1 fvdl u_int32_t initial_aperture; /* aperture size at startup */
68 1.1 fvdl struct agp_gatt *gatt;
69 1.14 scw int chiptype; /* i810-like or i830 */
70 1.14 scw u_int32_t dcache_size; /* i810 only */
71 1.14 scw u_int32_t stolen; /* number of i830/845 gtt entries
72 1.14 scw for stolen memory */
73 1.1 fvdl bus_space_tag_t bst; /* bus_space tag */
74 1.1 fvdl bus_space_handle_t bsh; /* bus_space handle */
75 1.1 fvdl struct pci_attach_args vga_pa;
76 1.24 jmcneill
77 1.24 jmcneill void *sc_powerhook;
78 1.24 jmcneill struct pci_conf_state sc_pciconf;
79 1.1 fvdl };
80 1.1 fvdl
81 1.1 fvdl static u_int32_t agp_i810_get_aperture(struct agp_softc *);
82 1.1 fvdl static int agp_i810_set_aperture(struct agp_softc *, u_int32_t);
83 1.1 fvdl static int agp_i810_bind_page(struct agp_softc *, off_t, bus_addr_t);
84 1.1 fvdl static int agp_i810_unbind_page(struct agp_softc *, off_t);
85 1.1 fvdl static void agp_i810_flush_tlb(struct agp_softc *);
86 1.1 fvdl static int agp_i810_enable(struct agp_softc *, u_int32_t mode);
87 1.1 fvdl static struct agp_memory *agp_i810_alloc_memory(struct agp_softc *, int,
88 1.1 fvdl vsize_t);
89 1.1 fvdl static int agp_i810_free_memory(struct agp_softc *, struct agp_memory *);
90 1.1 fvdl static int agp_i810_bind_memory(struct agp_softc *, struct agp_memory *, off_t);
91 1.1 fvdl static int agp_i810_unbind_memory(struct agp_softc *, struct agp_memory *);
92 1.24 jmcneill static void agp_i810_powerhook(int, void *);
93 1.1 fvdl
94 1.1 fvdl struct agp_methods agp_i810_methods = {
95 1.1 fvdl agp_i810_get_aperture,
96 1.1 fvdl agp_i810_set_aperture,
97 1.1 fvdl agp_i810_bind_page,
98 1.1 fvdl agp_i810_unbind_page,
99 1.1 fvdl agp_i810_flush_tlb,
100 1.1 fvdl agp_i810_enable,
101 1.1 fvdl agp_i810_alloc_memory,
102 1.1 fvdl agp_i810_free_memory,
103 1.1 fvdl agp_i810_bind_memory,
104 1.1 fvdl agp_i810_unbind_memory,
105 1.1 fvdl };
106 1.1 fvdl
107 1.6 thorpej /* XXXthorpej -- duplicated code (see arch/i386/pci/pchb.c) */
108 1.1 fvdl static int
109 1.1 fvdl agp_i810_vgamatch(struct pci_attach_args *pa)
110 1.1 fvdl {
111 1.6 thorpej
112 1.2 fvdl if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY ||
113 1.2 fvdl PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA)
114 1.6 thorpej return (0);
115 1.6 thorpej
116 1.1 fvdl switch (PCI_PRODUCT(pa->pa_id)) {
117 1.1 fvdl case PCI_PRODUCT_INTEL_82810_GC:
118 1.1 fvdl case PCI_PRODUCT_INTEL_82810_DC100_GC:
119 1.1 fvdl case PCI_PRODUCT_INTEL_82810E_GC:
120 1.1 fvdl case PCI_PRODUCT_INTEL_82815_FULL_GRAPH:
121 1.14 scw case PCI_PRODUCT_INTEL_82830MP_IV:
122 1.14 scw case PCI_PRODUCT_INTEL_82845G_IGD:
123 1.17 hannken case PCI_PRODUCT_INTEL_82855GM_IGD:
124 1.18 tron case PCI_PRODUCT_INTEL_82865_IGD:
125 1.6 thorpej return (1);
126 1.1 fvdl }
127 1.1 fvdl
128 1.6 thorpej return (0);
129 1.1 fvdl }
130 1.1 fvdl
131 1.1 fvdl int
132 1.1 fvdl agp_i810_attach(struct device *parent, struct device *self, void *aux)
133 1.1 fvdl {
134 1.1 fvdl struct agp_softc *sc = (void *)self;
135 1.1 fvdl struct agp_i810_softc *isc;
136 1.1 fvdl struct agp_gatt *gatt;
137 1.1 fvdl int error;
138 1.1 fvdl
139 1.10 tsutsui isc = malloc(sizeof *isc, M_AGP, M_NOWAIT|M_ZERO);
140 1.1 fvdl if (isc == NULL) {
141 1.15 thorpej aprint_error(": can't allocate chipset-specific softc\n");
142 1.1 fvdl return ENOMEM;
143 1.1 fvdl }
144 1.1 fvdl sc->as_chipc = isc;
145 1.1 fvdl sc->as_methods = &agp_i810_methods;
146 1.1 fvdl
147 1.1 fvdl if (pci_find_device(&isc->vga_pa, agp_i810_vgamatch) == 0) {
148 1.20 tron #if NAGP_INTEL > 0
149 1.19 tron const struct pci_attach_args *pa = aux;
150 1.19 tron
151 1.19 tron switch (PCI_PRODUCT(pa->pa_id)) {
152 1.19 tron case PCI_PRODUCT_INTEL_82840_HB:
153 1.19 tron case PCI_PRODUCT_INTEL_82865_HB:
154 1.21 tron case PCI_PRODUCT_INTEL_82845G_DRAM:
155 1.23 xtraeme case PCI_PRODUCT_INTEL_82815_FULL_HUB:
156 1.19 tron return agp_intel_attach(parent, self, aux);
157 1.20 tron }
158 1.20 tron #endif
159 1.15 thorpej aprint_error(": can't find internal VGA device config space\n");
160 1.1 fvdl free(isc, M_AGP);
161 1.1 fvdl return ENOENT;
162 1.1 fvdl }
163 1.1 fvdl
164 1.1 fvdl /* XXXfvdl */
165 1.1 fvdl sc->as_dmat = isc->vga_pa.pa_dmat;
166 1.1 fvdl
167 1.1 fvdl error = agp_map_aperture(&isc->vga_pa, sc);
168 1.1 fvdl if (error != 0) {
169 1.15 thorpej aprint_error(": can't map aperture\n");
170 1.1 fvdl free(isc, M_AGP);
171 1.1 fvdl return error;
172 1.1 fvdl }
173 1.1 fvdl
174 1.14 scw switch (PCI_PRODUCT(isc->vga_pa.pa_id)) {
175 1.14 scw case PCI_PRODUCT_INTEL_82810_GC:
176 1.14 scw case PCI_PRODUCT_INTEL_82810_DC100_GC:
177 1.14 scw case PCI_PRODUCT_INTEL_82810E_GC:
178 1.14 scw case PCI_PRODUCT_INTEL_82815_FULL_GRAPH:
179 1.14 scw isc->chiptype = CHIP_I810;
180 1.14 scw break;
181 1.14 scw case PCI_PRODUCT_INTEL_82830MP_IV:
182 1.14 scw case PCI_PRODUCT_INTEL_82845G_IGD:
183 1.14 scw isc->chiptype = CHIP_I830;
184 1.14 scw break;
185 1.17 hannken case PCI_PRODUCT_INTEL_82855GM_IGD:
186 1.18 tron case PCI_PRODUCT_INTEL_82865_IGD:
187 1.17 hannken isc->chiptype = CHIP_I855;
188 1.17 hannken break;
189 1.14 scw }
190 1.14 scw
191 1.1 fvdl error = pci_mapreg_map(&isc->vga_pa, AGP_I810_MMADR,
192 1.1 fvdl PCI_MAPREG_TYPE_MEM, 0, &isc->bst, &isc->bsh, NULL, NULL);
193 1.1 fvdl if (error != 0) {
194 1.15 thorpej aprint_error(": can't map mmadr registers\n");
195 1.1 fvdl return error;
196 1.1 fvdl }
197 1.1 fvdl
198 1.1 fvdl isc->initial_aperture = AGP_GET_APERTURE(sc);
199 1.1 fvdl
200 1.14 scw gatt = malloc(sizeof(struct agp_gatt), M_AGP, M_NOWAIT);
201 1.14 scw if (!gatt) {
202 1.14 scw agp_generic_detach(sc);
203 1.14 scw return ENOMEM;
204 1.14 scw }
205 1.14 scw isc->gatt = gatt;
206 1.14 scw
207 1.14 scw gatt->ag_entries = AGP_GET_APERTURE(sc) >> AGP_PAGE_SHIFT;
208 1.1 fvdl
209 1.14 scw if (isc->chiptype == CHIP_I810) {
210 1.14 scw int dummyseg;
211 1.14 scw /* Some i810s have on-chip memory called dcache */
212 1.14 scw if (READ1(AGP_I810_DRT) & AGP_I810_DRT_POPULATED)
213 1.14 scw isc->dcache_size = 4 * 1024 * 1024;
214 1.14 scw else
215 1.14 scw isc->dcache_size = 0;
216 1.14 scw
217 1.14 scw /* According to the specs the gatt on the i810 must be 64k */
218 1.14 scw if (agp_alloc_dmamem(sc->as_dmat, 64 * 1024,
219 1.14 scw 0, &gatt->ag_dmamap, (caddr_t *)&gatt->ag_virtual,
220 1.14 scw &gatt->ag_physical, &gatt->ag_dmaseg, 1, &dummyseg) != 0) {
221 1.14 scw free(gatt, M_AGP);
222 1.1 fvdl agp_generic_detach(sc);
223 1.1 fvdl return ENOMEM;
224 1.1 fvdl }
225 1.14 scw
226 1.14 scw gatt->ag_size = gatt->ag_entries * sizeof(u_int32_t);
227 1.14 scw memset(gatt->ag_virtual, 0, gatt->ag_size);
228 1.14 scw
229 1.14 scw agp_flush_cache();
230 1.14 scw /* Install the GATT. */
231 1.14 scw WRITE4(AGP_I810_PGTBL_CTL, gatt->ag_physical | 1);
232 1.17 hannken } else if (isc->chiptype == CHIP_I830) {
233 1.14 scw /* The i830 automatically initializes the 128k gatt on boot. */
234 1.14 scw pcireg_t reg;
235 1.14 scw u_int32_t pgtblctl;
236 1.14 scw u_int16_t gcc1;
237 1.14 scw
238 1.14 scw reg = pci_conf_read(sc->as_pc, sc->as_tag, AGP_I830_GCC0);
239 1.14 scw gcc1 = (u_int16_t)(reg >> 16);
240 1.14 scw switch (gcc1 & AGP_I830_GCC1_GMS) {
241 1.14 scw case AGP_I830_GCC1_GMS_STOLEN_512:
242 1.14 scw isc->stolen = (512 - 132) * 1024 / 4096;
243 1.14 scw break;
244 1.14 scw case AGP_I830_GCC1_GMS_STOLEN_1024:
245 1.14 scw isc->stolen = (1024 - 132) * 1024 / 4096;
246 1.14 scw break;
247 1.14 scw case AGP_I830_GCC1_GMS_STOLEN_8192:
248 1.14 scw isc->stolen = (8192 - 132) * 1024 / 4096;
249 1.14 scw break;
250 1.14 scw default:
251 1.14 scw isc->stolen = 0;
252 1.15 thorpej aprint_error(
253 1.15 thorpej ": unknown memory configuration, disabling\n");
254 1.14 scw agp_generic_detach(sc);
255 1.14 scw return EINVAL;
256 1.14 scw }
257 1.14 scw if (isc->stolen > 0) {
258 1.17 hannken aprint_error(": detected %dk stolen memory\n%s",
259 1.17 hannken isc->stolen * 4, sc->as_dev.dv_xname);
260 1.14 scw }
261 1.17 hannken
262 1.17 hannken /* GATT address is already in there, make sure it's enabled */
263 1.17 hannken pgtblctl = READ4(AGP_I810_PGTBL_CTL);
264 1.17 hannken pgtblctl |= 1;
265 1.17 hannken WRITE4(AGP_I810_PGTBL_CTL, pgtblctl);
266 1.17 hannken
267 1.17 hannken gatt->ag_physical = pgtblctl & ~1;
268 1.17 hannken } else { /* CHIP_I855 */
269 1.17 hannken /* The 855GM automatically initializes the 128k gatt on boot. */
270 1.17 hannken pcireg_t reg;
271 1.17 hannken u_int32_t pgtblctl;
272 1.17 hannken u_int16_t gcc1;
273 1.17 hannken
274 1.17 hannken reg = pci_conf_read(sc->as_pc, sc->as_tag, AGP_I855_GCC1);
275 1.17 hannken gcc1 = (u_int16_t)(reg >> 16);
276 1.17 hannken switch (gcc1 & AGP_I855_GCC1_GMS) {
277 1.17 hannken case AGP_I855_GCC1_GMS_STOLEN_1M:
278 1.17 hannken isc->stolen = (1024 - 132) * 1024 / 4096;
279 1.17 hannken break;
280 1.17 hannken case AGP_I855_GCC1_GMS_STOLEN_4M:
281 1.17 hannken isc->stolen = (4096 - 132) * 1024 / 4096;
282 1.17 hannken break;
283 1.17 hannken case AGP_I855_GCC1_GMS_STOLEN_8M:
284 1.17 hannken isc->stolen = (8192 - 132) * 1024 / 4096;
285 1.17 hannken break;
286 1.17 hannken case AGP_I855_GCC1_GMS_STOLEN_16M:
287 1.17 hannken isc->stolen = (16384 - 132) * 1024 / 4096;
288 1.17 hannken break;
289 1.17 hannken case AGP_I855_GCC1_GMS_STOLEN_32M:
290 1.17 hannken isc->stolen = (32768 - 132) * 1024 / 4096;
291 1.17 hannken break;
292 1.17 hannken default:
293 1.17 hannken isc->stolen = 0;
294 1.17 hannken aprint_error(
295 1.17 hannken ": unknown memory configuration, disabling\n");
296 1.17 hannken agp_generic_detach(sc);
297 1.17 hannken return EINVAL;
298 1.17 hannken }
299 1.17 hannken if (isc->stolen > 0) {
300 1.17 hannken aprint_error(": detected %dk stolen memory\n%s",
301 1.17 hannken isc->stolen * 4, sc->as_dev.dv_xname);
302 1.17 hannken }
303 1.14 scw
304 1.14 scw /* GATT address is already in there, make sure it's enabled */
305 1.14 scw pgtblctl = READ4(AGP_I810_PGTBL_CTL);
306 1.14 scw pgtblctl |= 1;
307 1.14 scw WRITE4(AGP_I810_PGTBL_CTL, pgtblctl);
308 1.14 scw
309 1.14 scw gatt->ag_physical = pgtblctl & ~1;
310 1.1 fvdl }
311 1.1 fvdl
312 1.1 fvdl /*
313 1.1 fvdl * Make sure the chipset can see everything.
314 1.1 fvdl */
315 1.1 fvdl agp_flush_cache();
316 1.14 scw
317 1.24 jmcneill isc->sc_powerhook = powerhook_establish(agp_i810_powerhook, sc);
318 1.24 jmcneill if (isc->sc_powerhook == NULL)
319 1.24 jmcneill printf("%s: WARNING: unable to establish PCI power hook\n",
320 1.24 jmcneill sc->as_dev.dv_xname);
321 1.24 jmcneill
322 1.1 fvdl return 0;
323 1.1 fvdl }
324 1.1 fvdl
325 1.1 fvdl #if 0
326 1.1 fvdl static int
327 1.1 fvdl agp_i810_detach(struct agp_softc *sc)
328 1.1 fvdl {
329 1.1 fvdl int error;
330 1.1 fvdl struct agp_i810_softc *isc = sc->as_chipc;
331 1.1 fvdl
332 1.1 fvdl error = agp_generic_detach(sc);
333 1.1 fvdl if (error)
334 1.1 fvdl return error;
335 1.1 fvdl
336 1.1 fvdl /* Clear the GATT base. */
337 1.14 scw if (sc->chiptype == CHIP_I810) {
338 1.14 scw WRITE4(AGP_I810_PGTBL_CTL, 0);
339 1.14 scw } else {
340 1.14 scw unsigned int pgtblctl;
341 1.14 scw pgtblctl = READ4(AGP_I810_PGTBL_CTL);
342 1.14 scw pgtblctl &= ~1;
343 1.14 scw WRITE4(AGP_I810_PGTBL_CTL, pgtblctl);
344 1.14 scw }
345 1.1 fvdl
346 1.1 fvdl /* Put the aperture back the way it started. */
347 1.1 fvdl AGP_SET_APERTURE(sc, isc->initial_aperture);
348 1.1 fvdl
349 1.14 scw if (sc->chiptype == CHIP_I810) {
350 1.14 scw agp_free_dmamem(sc->as_dmat, gatt->ag_size, gatt->ag_dmamap,
351 1.14 scw (caddr_t)gatt->ag_virtual, &gatt->ag_dmaseg, 1);
352 1.14 scw }
353 1.14 scw free(sc->gatt, M_AGP);
354 1.1 fvdl
355 1.1 fvdl return 0;
356 1.1 fvdl }
357 1.1 fvdl #endif
358 1.1 fvdl
359 1.1 fvdl static u_int32_t
360 1.1 fvdl agp_i810_get_aperture(struct agp_softc *sc)
361 1.1 fvdl {
362 1.14 scw struct agp_i810_softc *isc = sc->as_chipc;
363 1.14 scw pcireg_t reg;
364 1.14 scw
365 1.14 scw if (isc->chiptype == CHIP_I810) {
366 1.14 scw u_int16_t miscc;
367 1.1 fvdl
368 1.14 scw reg = pci_conf_read(sc->as_pc, sc->as_tag, AGP_I810_SMRAM);
369 1.14 scw miscc = (u_int16_t)(reg >> 16);
370 1.14 scw if ((miscc & AGP_I810_MISCC_WINSIZE) ==
371 1.14 scw AGP_I810_MISCC_WINSIZE_32)
372 1.14 scw return 32 * 1024 * 1024;
373 1.14 scw else
374 1.14 scw return 64 * 1024 * 1024;
375 1.17 hannken } else if (isc->chiptype == CHIP_I830) {
376 1.14 scw u_int16_t gcc1;
377 1.14 scw
378 1.14 scw reg = pci_conf_read(sc->as_pc, sc->as_tag, AGP_I830_GCC0);
379 1.14 scw gcc1 = (u_int16_t)(reg >> 16);
380 1.14 scw if ((gcc1 & AGP_I830_GCC1_GMASIZE) == AGP_I830_GCC1_GMASIZE_64)
381 1.14 scw return 64 * 1024 * 1024;
382 1.14 scw else
383 1.14 scw return 128 * 1024 * 1024;
384 1.17 hannken } else { /* CHIP_I855 */
385 1.17 hannken return 128 * 1024 * 1024;
386 1.14 scw }
387 1.1 fvdl }
388 1.1 fvdl
389 1.1 fvdl static int
390 1.1 fvdl agp_i810_set_aperture(struct agp_softc *sc, u_int32_t aperture)
391 1.1 fvdl {
392 1.14 scw struct agp_i810_softc *isc = sc->as_chipc;
393 1.14 scw pcireg_t reg;
394 1.14 scw
395 1.14 scw if (isc->chiptype == CHIP_I810) {
396 1.14 scw u_int16_t miscc;
397 1.14 scw
398 1.14 scw /*
399 1.14 scw * Double check for sanity.
400 1.14 scw */
401 1.14 scw if (aperture != (32 * 1024 * 1024) &&
402 1.14 scw aperture != (64 * 1024 * 1024)) {
403 1.14 scw printf("%s: bad aperture size %d\n",
404 1.14 scw sc->as_dev.dv_xname, aperture);
405 1.14 scw return EINVAL;
406 1.14 scw }
407 1.1 fvdl
408 1.14 scw reg = pci_conf_read(sc->as_pc, sc->as_tag, AGP_I810_SMRAM);
409 1.14 scw miscc = (u_int16_t)(reg >> 16);
410 1.14 scw miscc &= ~AGP_I810_MISCC_WINSIZE;
411 1.14 scw if (aperture == 32 * 1024 * 1024)
412 1.14 scw miscc |= AGP_I810_MISCC_WINSIZE_32;
413 1.14 scw else
414 1.14 scw miscc |= AGP_I810_MISCC_WINSIZE_64;
415 1.14 scw
416 1.14 scw reg &= 0x0000ffff;
417 1.14 scw reg |= ((pcireg_t)miscc) << 16;
418 1.14 scw pci_conf_write(sc->as_pc, sc->as_tag, AGP_I810_SMRAM, reg);
419 1.17 hannken } if (isc->chiptype == CHIP_I830) {
420 1.14 scw u_int16_t gcc1;
421 1.14 scw
422 1.14 scw if (aperture != (64 * 1024 * 1024) &&
423 1.14 scw aperture != (128 * 1024 * 1024)) {
424 1.14 scw printf("%s: bad aperture size %d\n",
425 1.14 scw sc->as_dev.dv_xname, aperture);
426 1.14 scw return EINVAL;
427 1.14 scw }
428 1.14 scw reg = pci_conf_read(sc->as_pc, sc->as_tag, AGP_I830_GCC0);
429 1.14 scw gcc1 = (u_int16_t)(reg >> 16);
430 1.14 scw gcc1 &= ~AGP_I830_GCC1_GMASIZE;
431 1.14 scw if (aperture == 64 * 1024 * 1024)
432 1.14 scw gcc1 |= AGP_I830_GCC1_GMASIZE_64;
433 1.14 scw else
434 1.14 scw gcc1 |= AGP_I830_GCC1_GMASIZE_128;
435 1.14 scw
436 1.14 scw reg &= 0x0000ffff;
437 1.14 scw reg |= ((pcireg_t)gcc1) << 16;
438 1.14 scw pci_conf_write(sc->as_pc, sc->as_tag, AGP_I830_GCC0, reg);
439 1.17 hannken } else { /* CHIP_I855 */
440 1.17 hannken if (aperture != 128 * 1024 * 1024) {
441 1.17 hannken printf("%s: bad aperture size %d\n",
442 1.17 hannken sc->as_dev.dv_xname, aperture);
443 1.17 hannken return EINVAL;
444 1.17 hannken }
445 1.1 fvdl }
446 1.1 fvdl
447 1.1 fvdl return 0;
448 1.1 fvdl }
449 1.1 fvdl
450 1.1 fvdl static int
451 1.1 fvdl agp_i810_bind_page(struct agp_softc *sc, off_t offset, bus_addr_t physical)
452 1.1 fvdl {
453 1.1 fvdl struct agp_i810_softc *isc = sc->as_chipc;
454 1.1 fvdl
455 1.14 scw if (offset < 0 || offset >= (isc->gatt->ag_entries << AGP_PAGE_SHIFT)) {
456 1.14 scw #ifdef DEBUG
457 1.14 scw printf("%s: failed: offset 0x%08x, shift %d, entries %d\n",
458 1.14 scw sc->as_dev.dv_xname, (int)offset, AGP_PAGE_SHIFT,
459 1.14 scw isc->gatt->ag_entries);
460 1.14 scw #endif
461 1.1 fvdl return EINVAL;
462 1.14 scw }
463 1.14 scw
464 1.17 hannken if (isc->chiptype != CHIP_I830) {
465 1.14 scw if ((offset >> AGP_PAGE_SHIFT) < isc->stolen) {
466 1.14 scw #ifdef DEBUG
467 1.14 scw printf("%s: trying to bind into stolen memory",
468 1.14 scw sc->as_dev.dv_xname);
469 1.14 scw #endif
470 1.14 scw return EINVAL;
471 1.14 scw }
472 1.14 scw }
473 1.1 fvdl
474 1.1 fvdl WRITE4(AGP_I810_GTT + (u_int32_t)(offset >> AGP_PAGE_SHIFT) * 4,
475 1.1 fvdl physical | 1);
476 1.1 fvdl return 0;
477 1.1 fvdl }
478 1.1 fvdl
479 1.1 fvdl static int
480 1.1 fvdl agp_i810_unbind_page(struct agp_softc *sc, off_t offset)
481 1.1 fvdl {
482 1.1 fvdl struct agp_i810_softc *isc = sc->as_chipc;
483 1.1 fvdl
484 1.1 fvdl if (offset < 0 || offset >= (isc->gatt->ag_entries << AGP_PAGE_SHIFT))
485 1.1 fvdl return EINVAL;
486 1.1 fvdl
487 1.17 hannken if (isc->chiptype != CHIP_I810 ) {
488 1.14 scw if ((offset >> AGP_PAGE_SHIFT) < isc->stolen) {
489 1.14 scw #ifdef DEBUG
490 1.14 scw printf("%s: trying to unbind from stolen memory",
491 1.14 scw sc->as_dev.dv_xname);
492 1.14 scw #endif
493 1.14 scw return EINVAL;
494 1.14 scw }
495 1.14 scw }
496 1.14 scw
497 1.1 fvdl WRITE4(AGP_I810_GTT + (u_int32_t)(offset >> AGP_PAGE_SHIFT) * 4, 0);
498 1.1 fvdl return 0;
499 1.1 fvdl }
500 1.1 fvdl
501 1.1 fvdl /*
502 1.1 fvdl * Writing via memory mapped registers already flushes all TLBs.
503 1.1 fvdl */
504 1.1 fvdl static void
505 1.1 fvdl agp_i810_flush_tlb(struct agp_softc *sc)
506 1.1 fvdl {
507 1.1 fvdl }
508 1.1 fvdl
509 1.1 fvdl static int
510 1.1 fvdl agp_i810_enable(struct agp_softc *sc, u_int32_t mode)
511 1.1 fvdl {
512 1.1 fvdl
513 1.1 fvdl return 0;
514 1.1 fvdl }
515 1.1 fvdl
516 1.1 fvdl static struct agp_memory *
517 1.1 fvdl agp_i810_alloc_memory(struct agp_softc *sc, int type, vsize_t size)
518 1.1 fvdl {
519 1.1 fvdl struct agp_i810_softc *isc = sc->as_chipc;
520 1.1 fvdl struct agp_memory *mem;
521 1.1 fvdl
522 1.1 fvdl if ((size & (AGP_PAGE_SIZE - 1)) != 0)
523 1.1 fvdl return 0;
524 1.1 fvdl
525 1.1 fvdl if (sc->as_allocated + size > sc->as_maxmem)
526 1.1 fvdl return 0;
527 1.1 fvdl
528 1.1 fvdl if (type == 1) {
529 1.1 fvdl /*
530 1.1 fvdl * Mapping local DRAM into GATT.
531 1.1 fvdl */
532 1.17 hannken if (isc->chiptype != CHIP_I810 )
533 1.14 scw return 0;
534 1.1 fvdl if (size != isc->dcache_size)
535 1.1 fvdl return 0;
536 1.1 fvdl } else if (type == 2) {
537 1.1 fvdl /*
538 1.1 fvdl * Bogus mapping of a single page for the hardware cursor.
539 1.1 fvdl */
540 1.1 fvdl if (size != AGP_PAGE_SIZE)
541 1.1 fvdl return 0;
542 1.1 fvdl }
543 1.1 fvdl
544 1.10 tsutsui mem = malloc(sizeof *mem, M_AGP, M_WAITOK|M_ZERO);
545 1.1 fvdl if (mem == NULL)
546 1.1 fvdl return NULL;
547 1.1 fvdl mem->am_id = sc->as_nextid++;
548 1.1 fvdl mem->am_size = size;
549 1.1 fvdl mem->am_type = type;
550 1.1 fvdl
551 1.1 fvdl if (type == 2) {
552 1.1 fvdl /*
553 1.1 fvdl * Allocate and wire down the page now so that we can
554 1.1 fvdl * get its physical address.
555 1.1 fvdl */
556 1.1 fvdl mem->am_dmaseg = malloc(sizeof *mem->am_dmaseg, M_AGP,
557 1.1 fvdl M_WAITOK);
558 1.1 fvdl if (mem->am_dmaseg == NULL) {
559 1.1 fvdl free(mem, M_AGP);
560 1.1 fvdl return NULL;
561 1.1 fvdl }
562 1.1 fvdl if (agp_alloc_dmamem(sc->as_dmat, size, 0,
563 1.1 fvdl &mem->am_dmamap, &mem->am_virtual, &mem->am_physical,
564 1.1 fvdl mem->am_dmaseg, 1, &mem->am_nseg) != 0) {
565 1.1 fvdl free(mem->am_dmaseg, M_AGP);
566 1.1 fvdl free(mem, M_AGP);
567 1.1 fvdl return NULL;
568 1.1 fvdl }
569 1.1 fvdl } else if (type != 1) {
570 1.4 drochner if (bus_dmamap_create(sc->as_dmat, size, size / PAGE_SIZE + 1,
571 1.4 drochner size, 0, BUS_DMA_NOWAIT,
572 1.4 drochner &mem->am_dmamap) != 0) {
573 1.1 fvdl free(mem, M_AGP);
574 1.1 fvdl return NULL;
575 1.1 fvdl }
576 1.1 fvdl }
577 1.1 fvdl
578 1.1 fvdl TAILQ_INSERT_TAIL(&sc->as_memory, mem, am_link);
579 1.1 fvdl sc->as_allocated += size;
580 1.1 fvdl
581 1.1 fvdl return mem;
582 1.1 fvdl }
583 1.1 fvdl
584 1.1 fvdl static int
585 1.1 fvdl agp_i810_free_memory(struct agp_softc *sc, struct agp_memory *mem)
586 1.1 fvdl {
587 1.1 fvdl if (mem->am_is_bound)
588 1.1 fvdl return EBUSY;
589 1.1 fvdl
590 1.1 fvdl if (mem->am_type == 2) {
591 1.1 fvdl agp_free_dmamem(sc->as_dmat, mem->am_size, mem->am_dmamap,
592 1.1 fvdl mem->am_virtual, mem->am_dmaseg, mem->am_nseg);
593 1.1 fvdl free(mem->am_dmaseg, M_AGP);
594 1.1 fvdl }
595 1.1 fvdl
596 1.1 fvdl sc->as_allocated -= mem->am_size;
597 1.1 fvdl TAILQ_REMOVE(&sc->as_memory, mem, am_link);
598 1.1 fvdl free(mem, M_AGP);
599 1.1 fvdl return 0;
600 1.1 fvdl }
601 1.1 fvdl
602 1.1 fvdl static int
603 1.1 fvdl agp_i810_bind_memory(struct agp_softc *sc, struct agp_memory *mem,
604 1.1 fvdl off_t offset)
605 1.1 fvdl {
606 1.1 fvdl struct agp_i810_softc *isc = sc->as_chipc;
607 1.4 drochner u_int32_t regval, i;
608 1.4 drochner
609 1.4 drochner /*
610 1.4 drochner * XXX evil hack: the PGTBL_CTL appearently gets overwritten by the
611 1.4 drochner * X server for mysterious reasons which leads to crashes if we write
612 1.4 drochner * to the GTT through the MMIO window.
613 1.4 drochner * Until the issue is solved, simply restore it.
614 1.4 drochner */
615 1.4 drochner regval = bus_space_read_4(isc->bst, isc->bsh, AGP_I810_PGTBL_CTL);
616 1.4 drochner if (regval != (isc->gatt->ag_physical | 1)) {
617 1.4 drochner printf("agp_i810_bind_memory: PGTBL_CTL is 0x%x - fixing\n",
618 1.4 drochner regval);
619 1.4 drochner bus_space_write_4(isc->bst, isc->bsh, AGP_I810_PGTBL_CTL,
620 1.4 drochner isc->gatt->ag_physical | 1);
621 1.4 drochner }
622 1.1 fvdl
623 1.5 drochner if (mem->am_type == 2) {
624 1.5 drochner WRITE4(AGP_I810_GTT + (u_int32_t)(offset >> AGP_PAGE_SHIFT) * 4,
625 1.5 drochner mem->am_physical | 1);
626 1.5 drochner mem->am_offset = offset;
627 1.5 drochner mem->am_is_bound = 1;
628 1.1 fvdl return 0;
629 1.5 drochner }
630 1.5 drochner
631 1.1 fvdl if (mem->am_type != 1)
632 1.1 fvdl return agp_generic_bind_memory(sc, mem, offset);
633 1.1 fvdl
634 1.17 hannken if (isc->chiptype != CHIP_I810)
635 1.14 scw return EINVAL;
636 1.14 scw
637 1.1 fvdl for (i = 0; i < mem->am_size; i += AGP_PAGE_SIZE) {
638 1.1 fvdl WRITE4(AGP_I810_GTT + (u_int32_t)(offset >> AGP_PAGE_SHIFT) * 4,
639 1.1 fvdl i | 3);
640 1.1 fvdl }
641 1.13 drochner mem->am_is_bound = 1;
642 1.1 fvdl return 0;
643 1.1 fvdl }
644 1.1 fvdl
645 1.1 fvdl static int
646 1.1 fvdl agp_i810_unbind_memory(struct agp_softc *sc, struct agp_memory *mem)
647 1.1 fvdl {
648 1.1 fvdl struct agp_i810_softc *isc = sc->as_chipc;
649 1.1 fvdl u_int32_t i;
650 1.1 fvdl
651 1.5 drochner if (mem->am_type == 2) {
652 1.5 drochner WRITE4(AGP_I810_GTT +
653 1.5 drochner (u_int32_t)(mem->am_offset >> AGP_PAGE_SHIFT) * 4,
654 1.5 drochner 0);
655 1.5 drochner mem->am_offset = 0;
656 1.5 drochner mem->am_is_bound = 0;
657 1.1 fvdl return 0;
658 1.5 drochner }
659 1.1 fvdl
660 1.1 fvdl if (mem->am_type != 1)
661 1.1 fvdl return agp_generic_unbind_memory(sc, mem);
662 1.14 scw
663 1.17 hannken if (isc->chiptype != CHIP_I810)
664 1.14 scw return EINVAL;
665 1.1 fvdl
666 1.1 fvdl for (i = 0; i < mem->am_size; i += AGP_PAGE_SIZE)
667 1.1 fvdl WRITE4(AGP_I810_GTT + (i >> AGP_PAGE_SHIFT) * 4, 0);
668 1.13 drochner mem->am_is_bound = 0;
669 1.1 fvdl return 0;
670 1.1 fvdl }
671 1.24 jmcneill
672 1.24 jmcneill static void
673 1.24 jmcneill agp_i810_powerhook(int why, void *arg)
674 1.24 jmcneill {
675 1.24 jmcneill struct agp_softc *sc = (struct agp_softc *)arg;
676 1.24 jmcneill struct agp_i810_softc *isc = sc->as_chipc;
677 1.24 jmcneill
678 1.24 jmcneill if (why == PWR_RESUME) {
679 1.24 jmcneill pci_conf_restore(sc->as_pc, sc->as_tag, &isc->sc_pciconf);
680 1.24 jmcneill agp_flush_cache();
681 1.24 jmcneill } else if ((why == PWR_STANDBY) || (why == PWR_SUSPEND))
682 1.24 jmcneill pci_conf_capture(sc->as_pc, sc->as_tag, &isc->sc_pciconf);
683 1.24 jmcneill
684 1.24 jmcneill return;
685 1.24 jmcneill }
686