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authorTony Luck <tony.luck@intel.com>2008-08-01 13:13:32 -0400
committerTony Luck <tony.luck@intel.com>2008-08-01 13:21:21 -0400
commit7f30491ccd28627742e37899453ae20e3da8e18f (patch)
tree7291c0a26ed3a31acf9542857af3981d278f5de8 /include/asm-ia64/sn/tioca_provider.h
parent94ad374a0751f40d25e22e036c37f7263569d24c (diff)
[IA64] Move include/asm-ia64 to arch/ia64/include/asm
After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/sn/tioca_provider.h')
-rw-r--r--include/asm-ia64/sn/tioca_provider.h207
1 files changed, 0 insertions, 207 deletions
diff --git a/include/asm-ia64/sn/tioca_provider.h b/include/asm-ia64/sn/tioca_provider.h
deleted file mode 100644
index 9a820ac61be3..000000000000
--- a/include/asm-ia64/sn/tioca_provider.h
+++ /dev/null
@@ -1,207 +0,0 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (c) 2003-2005 Silicon Graphics, Inc. All rights reserved.
7 */
8
9#ifndef _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H
10#define _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H
11
12#include <asm/sn/tioca.h>
13
14/*
15 * WAR enables
16 * Defines for individual WARs. Each is a bitmask of applicable
17 * part revision numbers. (1 << 1) == rev A, (1 << 2) == rev B,
18 * (3 << 1) == (rev A or rev B), etc
19 */
20
21#define TIOCA_WAR_ENABLED(pv, tioca_common) \
22 ((1 << tioca_common->ca_rev) & pv)
23
24 /* TIO:ICE:FRZ:Freezer loses a PIO data ucred on PIO RD RSP with CW error */
25#define PV907908 (1 << 1)
26 /* ATI config space problems after BIOS execution starts */
27#define PV908234 (1 << 1)
28 /* CA:AGPDMA write request data mismatch with ABC1CL merge */
29#define PV895469 (1 << 1)
30 /* TIO:CA TLB invalidate of written GART entries possibly not occurring in CA*/
31#define PV910244 (1 << 1)
32
33struct tioca_dmamap{
34 struct list_head cad_list; /* headed by ca_list */
35
36 dma_addr_t cad_dma_addr; /* Linux dma handle */
37 uint cad_gart_entry; /* start entry in ca_gart_pagemap */
38 uint cad_gart_size; /* #entries for this map */
39};
40
41/*
42 * Kernel only fields. Prom may look at this stuff for debugging only.
43 * Access this structure through the ca_kernel_private ptr.
44 */
45
46struct tioca_common ;
47
48struct tioca_kernel {
49 struct tioca_common *ca_common; /* tioca this belongs to */
50 struct list_head ca_list; /* list of all ca's */
51 struct list_head ca_dmamaps;
52 spinlock_t ca_lock; /* Kernel lock */
53 cnodeid_t ca_closest_node;
54 struct list_head *ca_devices; /* bus->devices */
55
56 /*
57 * General GART stuff
58 */
59 u64 ca_ap_size; /* size of aperature in bytes */
60 u32 ca_gart_entries; /* # u64 entries in gart */
61 u32 ca_ap_pagesize; /* aperature page size in bytes */
62 u64 ca_ap_bus_base; /* bus address of CA aperature */
63 u64 ca_gart_size; /* gart size in bytes */
64 u64 *ca_gart; /* gart table vaddr */
65 u64 ca_gart_coretalk_addr; /* gart coretalk addr */
66 u8 ca_gart_iscoherent; /* used in tioca_tlbflush */
67
68 /* PCI GART convenience values */
69 u64 ca_pciap_base; /* pci aperature bus base address */
70 u64 ca_pciap_size; /* pci aperature size (bytes) */
71 u64 ca_pcigart_base; /* gfx GART bus base address */
72 u64 *ca_pcigart; /* gfx GART vm address */
73 u32 ca_pcigart_entries;
74 u32 ca_pcigart_start; /* PCI start index in ca_gart */
75 void *ca_pcigart_pagemap;
76
77 /* AGP GART convenience values */
78 u64 ca_gfxap_base; /* gfx aperature bus base address */
79 u64 ca_gfxap_size; /* gfx aperature size (bytes) */
80 u64 ca_gfxgart_base; /* gfx GART bus base address */
81 u64 *ca_gfxgart; /* gfx GART vm address */
82 u32 ca_gfxgart_entries;
83 u32 ca_gfxgart_start; /* agpgart start index in ca_gart */
84};
85
86/*
87 * Common tioca info shared between kernel and prom
88 *
89 * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES
90 * TO THE PROM VERSION.
91 */
92
93struct tioca_common {
94 struct pcibus_bussoft ca_common; /* common pciio header */
95
96 u32 ca_rev;
97 u32 ca_closest_nasid;
98
99 u64 ca_prom_private;
100 u64 ca_kernel_private;
101};
102
103/**
104 * tioca_paddr_to_gart - Convert an SGI coretalk address to a CA GART entry
105 * @paddr: page address to convert
106 *
107 * Convert a system [coretalk] address to a GART entry. GART entries are
108 * formed using the following:
109 *
110 * data = ( (1<<63) | ( (REMAP_NODE_ID << 40) | (MD_CHIPLET_ID << 38) |
111 * (REMAP_SYS_ADDR) ) >> 12 )
112 *
113 * DATA written to 1 GART TABLE Entry in system memory is remapped system
114 * addr for 1 page
115 *
116 * The data is for coretalk address format right shifted 12 bits with a
117 * valid bit.
118 *
119 * GART_TABLE_ENTRY [ 25:0 ] -- REMAP_SYS_ADDRESS[37:12].
120 * GART_TABLE_ENTRY [ 27:26 ] -- SHUB MD chiplet id.
121 * GART_TABLE_ENTRY [ 41:28 ] -- REMAP_NODE_ID.
122 * GART_TABLE_ENTRY [ 63 ] -- Valid Bit
123 */
124static inline u64
125tioca_paddr_to_gart(unsigned long paddr)
126{
127 /*
128 * We are assuming right now that paddr already has the correct
129 * format since the address from xtalk_dmaXXX should already have
130 * NODE_ID, CHIPLET_ID, and SYS_ADDR in the correct locations.
131 */
132
133 return ((paddr) >> 12) | (1UL << 63);
134}
135
136/**
137 * tioca_physpage_to_gart - Map a host physical page for SGI CA based DMA
138 * @page_addr: system page address to map
139 */
140
141static inline unsigned long
142tioca_physpage_to_gart(u64 page_addr)
143{
144 u64 coretalk_addr;
145
146 coretalk_addr = PHYS_TO_TIODMA(page_addr);
147 if (!coretalk_addr) {
148 return 0;
149 }
150
151 return tioca_paddr_to_gart(coretalk_addr);
152}
153
154/**
155 * tioca_tlbflush - invalidate cached SGI CA GART TLB entries
156 * @tioca_kernel: CA context
157 *
158 * Invalidate tlb entries for a given CA GART. Main complexity is to account
159 * for revA bug.
160 */
161static inline void
162tioca_tlbflush(struct tioca_kernel *tioca_kernel)
163{
164 volatile u64 tmp;
165 volatile struct tioca __iomem *ca_base;
166 struct tioca_common *tioca_common;
167
168 tioca_common = tioca_kernel->ca_common;
169 ca_base = (struct tioca __iomem *)tioca_common->ca_common.bs_base;
170
171 /*
172 * Explicit flushes not needed if GART is in cached mode
173 */
174 if (tioca_kernel->ca_gart_iscoherent) {
175 if (TIOCA_WAR_ENABLED(PV910244, tioca_common)) {
176 /*
177 * PV910244: RevA CA needs explicit flushes.
178 * Need to put GART into uncached mode before
179 * flushing otherwise the explicit flush is ignored.
180 *
181 * Alternate WAR would be to leave GART cached and
182 * touch every CL aligned GART entry.
183 */
184
185 __sn_clrq_relaxed(&ca_base->ca_control2, CA_GART_MEM_PARAM);
186 __sn_setq_relaxed(&ca_base->ca_control2, CA_GART_FLUSH_TLB);
187 __sn_setq_relaxed(&ca_base->ca_control2,
188 (0x2ull << CA_GART_MEM_PARAM_SHFT));
189 tmp = __sn_readq_relaxed(&ca_base->ca_control2);
190 }
191
192 return;
193 }
194
195 /*
196 * Gart in uncached mode ... need an explicit flush.
197 */
198
199 __sn_setq_relaxed(&ca_base->ca_control2, CA_GART_FLUSH_TLB);
200 tmp = __sn_readq_relaxed(&ca_base->ca_control2);
201}
202
203extern u32 tioca_gart_found;
204extern struct list_head tioca_list;
205extern int tioca_init_provider(void);
206extern void tioca_fastwrite_enable(struct tioca_kernel *tioca_kern);
207#endif /* _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H */
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