diff options
Diffstat (limited to 'drivers/parisc/sba_iommu.c')
-rw-r--r-- | drivers/parisc/sba_iommu.c | 109 |
1 files changed, 1 insertions, 108 deletions
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 5fbc11e4bc5d..12776b7e3a84 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c | |||
@@ -38,6 +38,7 @@ | |||
38 | #include <linux/proc_fs.h> | 38 | #include <linux/proc_fs.h> |
39 | #include <linux/seq_file.h> | 39 | #include <linux/seq_file.h> |
40 | 40 | ||
41 | #include <asm/ropes.h> | ||
41 | #include <asm/mckinley.h> /* for proc_mckinley_root */ | 42 | #include <asm/mckinley.h> /* for proc_mckinley_root */ |
42 | #include <asm/runway.h> /* for proc_runway_root */ | 43 | #include <asm/runway.h> /* for proc_runway_root */ |
43 | #include <asm/pdc.h> /* for PDC_MODEL_* */ | 44 | #include <asm/pdc.h> /* for PDC_MODEL_* */ |
@@ -46,11 +47,6 @@ | |||
46 | 47 | ||
47 | #define MODULE_NAME "SBA" | 48 | #define MODULE_NAME "SBA" |
48 | 49 | ||
49 | #ifdef CONFIG_PROC_FS | ||
50 | /* depends on proc fs support. But costs CPU performance */ | ||
51 | #undef SBA_COLLECT_STATS | ||
52 | #endif | ||
53 | |||
54 | /* | 50 | /* |
55 | ** The number of debug flags is a clue - this code is fragile. | 51 | ** The number of debug flags is a clue - this code is fragile. |
56 | ** Don't even think about messing with it unless you have | 52 | ** Don't even think about messing with it unless you have |
@@ -89,46 +85,13 @@ | |||
89 | #define DBG_RES(x...) | 85 | #define DBG_RES(x...) |
90 | #endif | 86 | #endif |
91 | 87 | ||
92 | #if defined(CONFIG_64BIT) | ||
93 | /* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */ | ||
94 | #define ZX1_SUPPORT | ||
95 | #endif | ||
96 | |||
97 | #define SBA_INLINE __inline__ | 88 | #define SBA_INLINE __inline__ |
98 | 89 | ||
99 | |||
100 | /* | ||
101 | ** The number of pdir entries to "free" before issueing | ||
102 | ** a read to PCOM register to flush out PCOM writes. | ||
103 | ** Interacts with allocation granularity (ie 4 or 8 entries | ||
104 | ** allocated and free'd/purged at a time might make this | ||
105 | ** less interesting). | ||
106 | */ | ||
107 | #define DELAYED_RESOURCE_CNT 16 | ||
108 | |||
109 | #define DEFAULT_DMA_HINT_REG 0 | 90 | #define DEFAULT_DMA_HINT_REG 0 |
110 | 91 | ||
111 | #define ASTRO_RUNWAY_PORT 0x582 | ||
112 | #define IKE_MERCED_PORT 0x803 | ||
113 | #define REO_MERCED_PORT 0x804 | ||
114 | #define REOG_MERCED_PORT 0x805 | ||
115 | #define PLUTO_MCKINLEY_PORT 0x880 | ||
116 | |||
117 | #define SBA_FUNC_ID 0x0000 /* function id */ | 92 | #define SBA_FUNC_ID 0x0000 /* function id */ |
118 | #define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */ | 93 | #define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */ |
119 | 94 | ||
120 | static inline int IS_ASTRO(struct parisc_device *d) { | ||
121 | return d->id.hversion == ASTRO_RUNWAY_PORT; | ||
122 | } | ||
123 | |||
124 | static inline int IS_IKE(struct parisc_device *d) { | ||
125 | return d->id.hversion == IKE_MERCED_PORT; | ||
126 | } | ||
127 | |||
128 | static inline int IS_PLUTO(struct parisc_device *d) { | ||
129 | return d->id.hversion == PLUTO_MCKINLEY_PORT; | ||
130 | } | ||
131 | |||
132 | #define SBA_FUNC_SIZE 4096 /* SBA configuration function reg set */ | 95 | #define SBA_FUNC_SIZE 4096 /* SBA configuration function reg set */ |
133 | 96 | ||
134 | #define ASTRO_IOC_OFFSET (32 * SBA_FUNC_SIZE) | 97 | #define ASTRO_IOC_OFFSET (32 * SBA_FUNC_SIZE) |
@@ -145,10 +108,6 @@ static inline int IS_PLUTO(struct parisc_device *d) { | |||
145 | #define IOC_CTRL_D4 (1 << 11) /* Disable 4-byte coalescing */ | 108 | #define IOC_CTRL_D4 (1 << 11) /* Disable 4-byte coalescing */ |
146 | #define IOC_CTRL_DD (1 << 13) /* Disable distr. LMMIO range coalescing */ | 109 | #define IOC_CTRL_DD (1 << 13) /* Disable distr. LMMIO range coalescing */ |
147 | 110 | ||
148 | #define MAX_IOC 2 /* per Ike. Pluto/Astro only have 1. */ | ||
149 | |||
150 | #define ROPES_PER_IOC 8 /* per Ike half or Pluto/Astro */ | ||
151 | |||
152 | 111 | ||
153 | /* | 112 | /* |
154 | ** Offsets into MBIB (Function 0 on Ike and hopefully Astro) | 113 | ** Offsets into MBIB (Function 0 on Ike and hopefully Astro) |
@@ -196,9 +155,6 @@ static inline int IS_PLUTO(struct parisc_device *d) { | |||
196 | #define IOC_TCNFG 0x318 | 155 | #define IOC_TCNFG 0x318 |
197 | #define IOC_PDIR_BASE 0x320 | 156 | #define IOC_PDIR_BASE 0x320 |
198 | 157 | ||
199 | /* AGP GART driver looks for this */ | ||
200 | #define SBA_IOMMU_COOKIE 0x0000badbadc0ffeeUL | ||
201 | |||
202 | 158 | ||
203 | /* | 159 | /* |
204 | ** IOC supports 4/8/16/64KB page sizes (see TCNFG register) | 160 | ** IOC supports 4/8/16/64KB page sizes (see TCNFG register) |
@@ -228,69 +184,6 @@ static inline int IS_PLUTO(struct parisc_device *d) { | |||
228 | #define SBA_PERF_CNT2 0x208 | 184 | #define SBA_PERF_CNT2 0x208 |
229 | #define SBA_PERF_CNT3 0x210 | 185 | #define SBA_PERF_CNT3 0x210 |
230 | 186 | ||
231 | |||
232 | struct ioc { | ||
233 | void __iomem *ioc_hpa; /* I/O MMU base address */ | ||
234 | char *res_map; /* resource map, bit == pdir entry */ | ||
235 | u64 *pdir_base; /* physical base address */ | ||
236 | unsigned long ibase; /* pdir IOV Space base - shared w/lba_pci */ | ||
237 | unsigned long imask; /* pdir IOV Space mask - shared w/lba_pci */ | ||
238 | #ifdef ZX1_SUPPORT | ||
239 | unsigned long iovp_mask; /* help convert IOVA to IOVP */ | ||
240 | #endif | ||
241 | unsigned long *res_hint; /* next avail IOVP - circular search */ | ||
242 | spinlock_t res_lock; | ||
243 | unsigned int res_bitshift; /* from the LEFT! */ | ||
244 | unsigned int res_size; /* size of resource map in bytes */ | ||
245 | #ifdef SBA_HINT_SUPPORT | ||
246 | /* FIXME : DMA HINTs not used */ | ||
247 | unsigned long hint_mask_pdir; /* bits used for DMA hints */ | ||
248 | unsigned int hint_shift_pdir; | ||
249 | #endif | ||
250 | #if DELAYED_RESOURCE_CNT > 0 | ||
251 | int saved_cnt; | ||
252 | struct sba_dma_pair { | ||
253 | dma_addr_t iova; | ||
254 | size_t size; | ||
255 | } saved[DELAYED_RESOURCE_CNT]; | ||
256 | #endif | ||
257 | |||
258 | #ifdef SBA_COLLECT_STATS | ||
259 | #define SBA_SEARCH_SAMPLE 0x100 | ||
260 | unsigned long avg_search[SBA_SEARCH_SAMPLE]; | ||
261 | unsigned long avg_idx; /* current index into avg_search */ | ||
262 | unsigned long used_pages; | ||
263 | unsigned long msingle_calls; | ||
264 | unsigned long msingle_pages; | ||
265 | unsigned long msg_calls; | ||
266 | unsigned long msg_pages; | ||
267 | unsigned long usingle_calls; | ||
268 | unsigned long usingle_pages; | ||
269 | unsigned long usg_calls; | ||
270 | unsigned long usg_pages; | ||
271 | #endif | ||
272 | |||
273 | /* STUFF We don't need in performance path */ | ||
274 | unsigned int pdir_size; /* in bytes, determined by IOV Space size */ | ||
275 | }; | ||
276 | |||
277 | struct sba_device { | ||
278 | struct sba_device *next; /* list of SBA's in system */ | ||
279 | struct parisc_device *dev; /* dev found in bus walk */ | ||
280 | const char *name; | ||
281 | void __iomem *sba_hpa; /* base address */ | ||
282 | spinlock_t sba_lock; | ||
283 | unsigned int flags; /* state/functionality enabled */ | ||
284 | unsigned int hw_rev; /* HW revision of chip */ | ||
285 | |||
286 | struct resource chip_resv; /* MMIO reserved for chip */ | ||
287 | struct resource iommu_resv; /* MMIO reserved for iommu */ | ||
288 | |||
289 | unsigned int num_ioc; /* number of on-board IOC's */ | ||
290 | struct ioc ioc[MAX_IOC]; | ||
291 | }; | ||
292 | |||
293 | |||
294 | static struct sba_device *sba_list; | 187 | static struct sba_device *sba_list; |
295 | 188 | ||
296 | static unsigned long ioc_needs_fdc = 0; | 189 | static unsigned long ioc_needs_fdc = 0; |