1 #ifndef _ASM_PARISC_ROPES_H_
2 #define _ASM_PARISC_ROPES_H_
3
4 #include <asm/parisc-device.h>
5
6 #ifdef CONFIG_64BIT
7 /* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */
8 #define ZX1_SUPPORT
9 #endif
10
11 #ifdef CONFIG_PROC_FS
12 /* depends on proc fs support. But costs CPU performance */
13 #undef SBA_COLLECT_STATS
14 #endif
15
16 /*
17 ** The number of pdir entries to "free" before issuing
18 ** a read to PCOM register to flush out PCOM writes.
19 ** Interacts with allocation granularity (ie 4 or 8 entries
20 ** allocated and free'd/purged at a time might make this
21 ** less interesting).
22 */
23 #define DELAYED_RESOURCE_CNT 16
24
25 #define MAX_IOC 2 /* per Ike. Pluto/Astro only have 1. */
26 #define ROPES_PER_IOC 8 /* per Ike half or Pluto/Astro */
27
28 struct ioc {
29 void __iomem *ioc_hpa; /* I/O MMU base address */
30 char *res_map; /* resource map, bit == pdir entry */
31 u64 *pdir_base; /* physical base address */
32 unsigned long ibase; /* pdir IOV Space base - shared w/lba_pci */
33 unsigned long imask; /* pdir IOV Space mask - shared w/lba_pci */
34 #ifdef ZX1_SUPPORT
35 unsigned long iovp_mask; /* help convert IOVA to IOVP */
36 #endif
37 unsigned long *res_hint; /* next avail IOVP - circular search */
38 spinlock_t res_lock;
39 unsigned int res_bitshift; /* from the LEFT! */
40 unsigned int res_size; /* size of resource map in bytes */
41 #ifdef SBA_HINT_SUPPORT
42 /* FIXME : DMA HINTs not used */
43 unsigned long hint_mask_pdir; /* bits used for DMA hints */
44 unsigned int hint_shift_pdir;
45 #endif
46 #if DELAYED_RESOURCE_CNT > 0
47 int saved_cnt;
48 struct sba_dma_pair {
49 dma_addr_t iova;
50 size_t size;
51 } saved[DELAYED_RESOURCE_CNT];
52 #endif
53
54 #ifdef SBA_COLLECT_STATS
55 #define SBA_SEARCH_SAMPLE 0x100
56 unsigned long avg_search[SBA_SEARCH_SAMPLE];
57 unsigned long avg_idx; /* current index into avg_search */
58 unsigned long used_pages;
59 unsigned long msingle_calls;
60 unsigned long msingle_pages;
61 unsigned long msg_calls;
62 unsigned long msg_pages;
63 unsigned long usingle_calls;
64 unsigned long usingle_pages;
65 unsigned long usg_calls;
66 unsigned long usg_pages;
67 #endif
68 /* STUFF We don't need in performance path */
69 unsigned int pdir_size; /* in bytes, determined by IOV Space size */
70 };
71
72 struct sba_device {
73 struct sba_device *next; /* list of SBA's in system */
74 struct parisc_device *dev; /* dev found in bus walk */
75 const char *name;
76 void __iomem *sba_hpa; /* base address */
77 spinlock_t sba_lock;
78 unsigned int flags; /* state/functionality enabled */
79 unsigned int hw_rev; /* HW revision of chip */
80
81 struct resource chip_resv; /* MMIO reserved for chip */
82 struct resource iommu_resv; /* MMIO reserved for iommu */
83
84 unsigned int num_ioc; /* number of on-board IOC's */
85 struct ioc ioc[MAX_IOC];
86 };
87
88 #define ASTRO_RUNWAY_PORT 0x582
89 #define IKE_MERCED_PORT 0x803
90 #define REO_MERCED_PORT 0x804
91 #define REOG_MERCED_PORT 0x805
92 #define PLUTO_MCKINLEY_PORT 0x880
93
IS_ASTRO(struct parisc_device * d)94 static inline int IS_ASTRO(struct parisc_device *d) {
95 return d->id.hversion == ASTRO_RUNWAY_PORT;
96 }
97
IS_IKE(struct parisc_device * d)98 static inline int IS_IKE(struct parisc_device *d) {
99 return d->id.hversion == IKE_MERCED_PORT;
100 }
101
IS_PLUTO(struct parisc_device * d)102 static inline int IS_PLUTO(struct parisc_device *d) {
103 return d->id.hversion == PLUTO_MCKINLEY_PORT;
104 }
105
106 #define PLUTO_IOVA_BASE (1UL*1024*1024*1024) /* 1GB */
107 #define PLUTO_IOVA_SIZE (1UL*1024*1024*1024) /* 1GB */
108 #define PLUTO_GART_SIZE (PLUTO_IOVA_SIZE / 2)
109
110 #define SBA_PDIR_VALID_BIT 0x8000000000000000ULL
111
112 #define SBA_AGPGART_COOKIE 0x0000badbadc0ffeeULL
113
114 #define SBA_FUNC_ID 0x0000 /* function id */
115 #define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */
116
117 #define SBA_FUNC_SIZE 4096 /* SBA configuration function reg set */
118
119 #define ASTRO_IOC_OFFSET (32 * SBA_FUNC_SIZE)
120 #define PLUTO_IOC_OFFSET (1 * SBA_FUNC_SIZE)
121 /* Ike's IOC's occupy functions 2 and 3 */
122 #define IKE_IOC_OFFSET(p) ((p+2) * SBA_FUNC_SIZE)
123
124 #define IOC_CTRL 0x8 /* IOC_CTRL offset */
125 #define IOC_CTRL_TC (1 << 0) /* TOC Enable */
126 #define IOC_CTRL_CE (1 << 1) /* Coalesce Enable */
127 #define IOC_CTRL_DE (1 << 2) /* Dillon Enable */
128 #define IOC_CTRL_RM (1 << 8) /* Real Mode */
129 #define IOC_CTRL_NC (1 << 9) /* Non Coherent Mode */
130 #define IOC_CTRL_D4 (1 << 11) /* Disable 4-byte coalescing */
131 #define IOC_CTRL_DD (1 << 13) /* Disable distr. LMMIO range coalescing */
132
133 /*
134 ** Offsets into MBIB (Function 0 on Ike and hopefully Astro)
135 ** Firmware programs this stuff. Don't touch it.
136 */
137 #define LMMIO_DIRECT0_BASE 0x300
138 #define LMMIO_DIRECT0_MASK 0x308
139 #define LMMIO_DIRECT0_ROUTE 0x310
140
141 #define LMMIO_DIST_BASE 0x360
142 #define LMMIO_DIST_MASK 0x368
143 #define LMMIO_DIST_ROUTE 0x370
144
145 #define IOS_DIST_BASE 0x390
146 #define IOS_DIST_MASK 0x398
147 #define IOS_DIST_ROUTE 0x3A0
148
149 #define IOS_DIRECT_BASE 0x3C0
150 #define IOS_DIRECT_MASK 0x3C8
151 #define IOS_DIRECT_ROUTE 0x3D0
152
153 /*
154 ** Offsets into I/O TLB (Function 2 and 3 on Ike)
155 */
156 #define ROPE0_CTL 0x200 /* "regbus pci0" */
157 #define ROPE1_CTL 0x208
158 #define ROPE2_CTL 0x210
159 #define ROPE3_CTL 0x218
160 #define ROPE4_CTL 0x220
161 #define ROPE5_CTL 0x228
162 #define ROPE6_CTL 0x230
163 #define ROPE7_CTL 0x238
164
165 #define IOC_ROPE0_CFG 0x500 /* pluto only */
166 #define IOC_ROPE_AO 0x10 /* Allow "Relaxed Ordering" */
167
168 #define HF_ENABLE 0x40
169
170 #define IOC_IBASE 0x300 /* IO TLB */
171 #define IOC_IMASK 0x308
172 #define IOC_PCOM 0x310
173 #define IOC_TCNFG 0x318
174 #define IOC_PDIR_BASE 0x320
175
176 /*
177 ** IOC supports 4/8/16/64KB page sizes (see TCNFG register)
178 ** It's safer (avoid memory corruption) to keep DMA page mappings
179 ** equivalently sized to VM PAGE_SIZE.
180 **
181 ** We really can't avoid generating a new mapping for each
182 ** page since the Virtual Coherence Index has to be generated
183 ** and updated for each page.
184 **
185 ** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse.
186 */
187 #define IOVP_SIZE PAGE_SIZE
188 #define IOVP_SHIFT PAGE_SHIFT
189 #define IOVP_MASK PAGE_MASK
190
191 #define SBA_PERF_CFG 0x708 /* Performance Counter stuff */
192 #define SBA_PERF_MASK1 0x718
193 #define SBA_PERF_MASK2 0x730
194
195 /*
196 ** Offsets into PCI Performance Counters (functions 12 and 13)
197 ** Controlled by PERF registers in function 2 & 3 respectively.
198 */
199 #define SBA_PERF_CNT1 0x200
200 #define SBA_PERF_CNT2 0x208
201 #define SBA_PERF_CNT3 0x210
202
203 /*
204 ** lba_device: Per instance Elroy data structure
205 */
206 struct lba_device {
207 struct pci_hba_data hba;
208
209 spinlock_t lba_lock;
210 void *iosapic_obj;
211
212 #ifdef CONFIG_64BIT
213 void __iomem *iop_base; /* PA_VIEW - for IO port accessor funcs */
214 #endif
215
216 int flags; /* state/functionality enabled */
217 int hw_rev; /* HW revision of chip */
218 };
219
220 #define ELROY_HVERS 0x782
221 #define MERCURY_HVERS 0x783
222 #define QUICKSILVER_HVERS 0x784
223
IS_ELROY(struct parisc_device * d)224 static inline int IS_ELROY(struct parisc_device *d) {
225 return (d->id.hversion == ELROY_HVERS);
226 }
227
IS_MERCURY(struct parisc_device * d)228 static inline int IS_MERCURY(struct parisc_device *d) {
229 return (d->id.hversion == MERCURY_HVERS);
230 }
231
IS_QUICKSILVER(struct parisc_device * d)232 static inline int IS_QUICKSILVER(struct parisc_device *d) {
233 return (d->id.hversion == QUICKSILVER_HVERS);
234 }
235
agp_mode_mercury(void __iomem * hpa)236 static inline int agp_mode_mercury(void __iomem *hpa) {
237 u64 bus_mode;
238
239 bus_mode = readl(hpa + 0x0620);
240 if (bus_mode & 1)
241 return 1;
242
243 return 0;
244 }
245
246 /*
247 ** I/O SAPIC init function
248 ** Caller knows where an I/O SAPIC is. LBA has an integrated I/O SAPIC.
249 ** Call setup as part of per instance initialization.
250 ** (ie *not* init_module() function unless only one is present.)
251 ** fixup_irq is to initialize PCI IRQ line support and
252 ** virtualize pcidev->irq value. To be called by pci_fixup_bus().
253 */
254 extern void *iosapic_register(unsigned long hpa);
255 extern int iosapic_fixup_irq(void *obj, struct pci_dev *pcidev);
256
257 #define LBA_FUNC_ID 0x0000 /* function id */
258 #define LBA_FCLASS 0x0008 /* function class, bist, header, rev... */
259 #define LBA_CAPABLE 0x0030 /* capabilities register */
260
261 #define LBA_PCI_CFG_ADDR 0x0040 /* poke CFG address here */
262 #define LBA_PCI_CFG_DATA 0x0048 /* read or write data here */
263
264 #define LBA_PMC_MTLT 0x0050 /* Firmware sets this - read only. */
265 #define LBA_FW_SCRATCH 0x0058 /* Firmware writes the PCI bus number here. */
266 #define LBA_ERROR_ADDR 0x0070 /* On error, address gets logged here */
267
268 #define LBA_ARB_MASK 0x0080 /* bit 0 enable arbitration. PAT/PDC enables */
269 #define LBA_ARB_PRI 0x0088 /* firmware sets this. */
270 #define LBA_ARB_MODE 0x0090 /* firmware sets this. */
271 #define LBA_ARB_MTLT 0x0098 /* firmware sets this. */
272
273 #define LBA_MOD_ID 0x0100 /* Module ID. PDC_PAT_CELL reports 4 */
274
275 #define LBA_STAT_CTL 0x0108 /* Status & Control */
276 #define LBA_BUS_RESET 0x01 /* Deassert PCI Bus Reset Signal */
277 #define CLEAR_ERRLOG 0x10 /* "Clear Error Log" cmd */
278 #define CLEAR_ERRLOG_ENABLE 0x20 /* "Clear Error Log" Enable */
279 #define HF_ENABLE 0x40 /* enable HF mode (default is -1 mode) */
280
281 #define LBA_LMMIO_BASE 0x0200 /* < 4GB I/O address range */
282 #define LBA_LMMIO_MASK 0x0208
283
284 #define LBA_GMMIO_BASE 0x0210 /* > 4GB I/O address range */
285 #define LBA_GMMIO_MASK 0x0218
286
287 #define LBA_WLMMIO_BASE 0x0220 /* All < 4GB ranges under the same *SBA* */
288 #define LBA_WLMMIO_MASK 0x0228
289
290 #define LBA_WGMMIO_BASE 0x0230 /* All > 4GB ranges under the same *SBA* */
291 #define LBA_WGMMIO_MASK 0x0238
292
293 #define LBA_IOS_BASE 0x0240 /* I/O port space for this LBA */
294 #define LBA_IOS_MASK 0x0248
295
296 #define LBA_ELMMIO_BASE 0x0250 /* Extra LMMIO range */
297 #define LBA_ELMMIO_MASK 0x0258
298
299 #define LBA_EIOS_BASE 0x0260 /* Extra I/O port space */
300 #define LBA_EIOS_MASK 0x0268
301
302 #define LBA_GLOBAL_MASK 0x0270 /* Mercury only: Global Address Mask */
303 #define LBA_DMA_CTL 0x0278 /* firmware sets this */
304
305 #define LBA_IBASE 0x0300 /* SBA DMA support */
306 #define LBA_IMASK 0x0308
307
308 /* FIXME: ignore DMA Hint stuff until we can measure performance */
309 #define LBA_HINT_CFG 0x0310
310 #define LBA_HINT_BASE 0x0380 /* 14 registers at every 8 bytes. */
311
312 #define LBA_BUS_MODE 0x0620
313
314 /* ERROR regs are needed for config cycle kluges */
315 #define LBA_ERROR_CONFIG 0x0680
316 #define LBA_SMART_MODE 0x20
317 #define LBA_ERROR_STATUS 0x0688
318 #define LBA_ROPE_CTL 0x06A0
319
320 #define LBA_IOSAPIC_BASE 0x800 /* Offset of IRQ logic */
321
322 #endif /*_ASM_PARISC_ROPES_H_*/
323