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authorDavid S. Miller <davem@davemloft.net>2010-08-24 02:10:57 -0400
committerDavid S. Miller <davem@davemloft.net>2010-08-24 02:10:57 -0400
commit25edd6946a1d74e5e77813c2324a0908c68bcf9e (patch)
tree29afc2a7287df17776e4e2b4a6ee78b108c09f10 /arch
parent019408f9b89c68cd7b8ddb904960dc17ccf7e531 (diff)
sparc64: Get rid of indirect p1275 PROM call buffer.
This is based upon a report by Meelis Roos showing that it's possible that we'll try to fetch a property that is 32K in size with some devices. With the current fixed 3K buffer we use for moving data in and out of the firmware during PROM calls, that simply won't work. In fact, it will scramble random kernel data during bootup. The reasoning behind the temporary buffer is entirely historical. It used to be the case that we had problems referencing dynamic kernel memory (including the stack) early in the boot process before we explicitly told the firwmare to switch us over to the kernel trap table. So what we did was always give the firmware buffers that were locked into the main kernel image. But we no longer have problems like that, so get rid of all of this indirect bounce buffering. Besides fixing Meelis's bug, this also makes the kernel data about 3K smaller. It was also discovered during these conversions that the implementation of prom_retain() was completely wrong, so that was fixed here as well. Currently that interface is not in use. Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/include/asm/oplib_64.h27
-rw-r--r--arch/sparc/prom/cif.S16
-rw-r--r--arch/sparc/prom/console_64.c48
-rw-r--r--arch/sparc/prom/devops_64.c36
-rw-r--r--arch/sparc/prom/misc_64.c314
-rw-r--r--arch/sparc/prom/p1275.c102
-rw-r--r--arch/sparc/prom/tree_64.c210
7 files changed, 456 insertions, 297 deletions
diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index a5db0317b5fb..3e0b2d62303d 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -185,9 +185,8 @@ extern int prom_getunumber(int syndrome_code,
185 char *buf, int buflen); 185 char *buf, int buflen);
186 186
187/* Retain physical memory to the caller across soft resets. */ 187/* Retain physical memory to the caller across soft resets. */
188extern unsigned long prom_retain(const char *name, 188extern int prom_retain(const char *name, unsigned long size,
189 unsigned long pa_low, unsigned long pa_high, 189 unsigned long align, unsigned long *paddr);
190 long size, long align);
191 190
192/* Load explicit I/D TLB entries into the calling processor. */ 191/* Load explicit I/D TLB entries into the calling processor. */
193extern long prom_itlb_load(unsigned long index, 192extern long prom_itlb_load(unsigned long index,
@@ -287,26 +286,6 @@ extern void prom_sun4v_guest_soft_state(void);
287extern int prom_ihandle2path(int handle, char *buffer, int bufsize); 286extern int prom_ihandle2path(int handle, char *buffer, int bufsize);
288 287
289/* Client interface level routines. */ 288/* Client interface level routines. */
290extern long p1275_cmd(const char *, long, ...); 289extern void p1275_cmd_direct(unsigned long *);
291
292#if 0
293#define P1275_SIZE(x) ((((long)((x) / 32)) << 32) | (x))
294#else
295#define P1275_SIZE(x) x
296#endif
297
298/* We support at most 16 input and 1 output argument */
299#define P1275_ARG_NUMBER 0
300#define P1275_ARG_IN_STRING 1
301#define P1275_ARG_OUT_BUF 2
302#define P1275_ARG_OUT_32B 3
303#define P1275_ARG_IN_FUNCTION 4
304#define P1275_ARG_IN_BUF 5
305#define P1275_ARG_IN_64B 6
306
307#define P1275_IN(x) ((x) & 0xf)
308#define P1275_OUT(x) (((x) << 4) & 0xf0)
309#define P1275_INOUT(i,o) (P1275_IN(i)|P1275_OUT(o))
310#define P1275_ARG(n,x) ((x) << ((n)*3 + 8))
311 290
312#endif /* !(__SPARC64_OPLIB_H) */ 291#endif /* !(__SPARC64_OPLIB_H) */
diff --git a/arch/sparc/prom/cif.S b/arch/sparc/prom/cif.S
index 5f27ad779c0c..9c86b4b7d429 100644
--- a/arch/sparc/prom/cif.S
+++ b/arch/sparc/prom/cif.S
@@ -9,18 +9,18 @@
9#include <asm/thread_info.h> 9#include <asm/thread_info.h>
10 10
11 .text 11 .text
12 .globl prom_cif_interface 12 .globl prom_cif_direct
13prom_cif_interface: 13prom_cif_direct:
14 sethi %hi(p1275buf), %o0 14 sethi %hi(p1275buf), %o1
15 or %o0, %lo(p1275buf), %o0 15 or %o1, %lo(p1275buf), %o1
16 ldx [%o0 + 0x010], %o1 ! prom_cif_stack 16 ldx [%o1 + 0x0010], %o2 ! prom_cif_stack
17 save %o1, -192, %sp 17 save %o2, -192, %sp
18 ldx [%i0 + 0x008], %l2 ! prom_cif_handler 18 ldx [%i1 + 0x0008], %l2 ! prom_cif_handler
19 mov %g4, %l0 19 mov %g4, %l0
20 mov %g5, %l1 20 mov %g5, %l1
21 mov %g6, %l3 21 mov %g6, %l3
22 call %l2 22 call %l2
23 add %i0, 0x018, %o0 ! prom_args 23 mov %i0, %o0 ! prom_args
24 mov %l0, %g4 24 mov %l0, %g4
25 mov %l1, %g5 25 mov %l1, %g5
26 mov %l3, %g6 26 mov %l3, %g6
diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c
index f55d58a8a156..10322dc2f557 100644
--- a/arch/sparc/prom/console_64.c
+++ b/arch/sparc/prom/console_64.c
@@ -21,14 +21,22 @@ extern int prom_stdin, prom_stdout;
21inline int 21inline int
22prom_nbgetchar(void) 22prom_nbgetchar(void)
23{ 23{
24 unsigned long args[7];
24 char inc; 25 char inc;
25 26
26 if (p1275_cmd("read", P1275_ARG(1,P1275_ARG_OUT_BUF)| 27 args[0] = (unsigned long) "read";
27 P1275_INOUT(3,1), 28 args[1] = 3;
28 prom_stdin, &inc, P1275_SIZE(1)) == 1) 29 args[2] = 1;
30 args[3] = (unsigned int) prom_stdin;
31 args[4] = (unsigned long) &inc;
32 args[5] = 1;
33 args[6] = (unsigned long) -1;
34
35 p1275_cmd_direct(args);
36
37 if (args[6] == 1)
29 return inc; 38 return inc;
30 else 39 return -1;
31 return -1;
32} 40}
33 41
34/* Non blocking put character to console device, returns -1 if 42/* Non blocking put character to console device, returns -1 if
@@ -37,12 +45,22 @@ prom_nbgetchar(void)
37inline int 45inline int
38prom_nbputchar(char c) 46prom_nbputchar(char c)
39{ 47{
48 unsigned long args[7];
40 char outc; 49 char outc;
41 50
42 outc = c; 51 outc = c;
43 if (p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)| 52
44 P1275_INOUT(3,1), 53 args[0] = (unsigned long) "write";
45 prom_stdout, &outc, P1275_SIZE(1)) == 1) 54 args[1] = 3;
55 args[2] = 1;
56 args[3] = (unsigned int) prom_stdout;
57 args[4] = (unsigned long) &outc;
58 args[5] = 1;
59 args[6] = (unsigned long) -1;
60
61 p1275_cmd_direct(args);
62
63 if (args[6] == 1)
46 return 0; 64 return 0;
47 else 65 else
48 return -1; 66 return -1;
@@ -67,7 +85,15 @@ prom_putchar(char c)
67void 85void
68prom_puts(const char *s, int len) 86prom_puts(const char *s, int len)
69{ 87{
70 p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)| 88 unsigned long args[7];
71 P1275_INOUT(3,1), 89
72 prom_stdout, s, P1275_SIZE(len)); 90 args[0] = (unsigned long) "write";
91 args[1] = 3;
92 args[2] = 1;
93 args[3] = (unsigned int) prom_stdout;
94 args[4] = (unsigned long) s;
95 args[5] = len;
96 args[6] = (unsigned long) -1;
97
98 p1275_cmd_direct(args);
73} 99}
diff --git a/arch/sparc/prom/devops_64.c b/arch/sparc/prom/devops_64.c
index 9dbd803e46e1..a017119e7ef1 100644
--- a/arch/sparc/prom/devops_64.c
+++ b/arch/sparc/prom/devops_64.c
@@ -18,16 +18,32 @@
18int 18int
19prom_devopen(const char *dstr) 19prom_devopen(const char *dstr)
20{ 20{
21 return p1275_cmd ("open", P1275_ARG(0,P1275_ARG_IN_STRING)| 21 unsigned long args[5];
22 P1275_INOUT(1,1), 22
23 dstr); 23 args[0] = (unsigned long) "open";
24 args[1] = 1;
25 args[2] = 1;
26 args[3] = (unsigned long) dstr;
27 args[4] = (unsigned long) -1;
28
29 p1275_cmd_direct(args);
30
31 return (int) args[4];
24} 32}
25 33
26/* Close the device described by device handle 'dhandle'. */ 34/* Close the device described by device handle 'dhandle'. */
27int 35int
28prom_devclose(int dhandle) 36prom_devclose(int dhandle)
29{ 37{
30 p1275_cmd ("close", P1275_INOUT(1,0), dhandle); 38 unsigned long args[4];
39
40 args[0] = (unsigned long) "close";
41 args[1] = 1;
42 args[2] = 0;
43 args[3] = (unsigned int) dhandle;
44
45 p1275_cmd_direct(args);
46
31 return 0; 47 return 0;
32} 48}
33 49
@@ -37,5 +53,15 @@ prom_devclose(int dhandle)
37void 53void
38prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) 54prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo)
39{ 55{
40 p1275_cmd ("seek", P1275_INOUT(3,1), dhandle, seekhi, seeklo); 56 unsigned long args[7];
57
58 args[0] = (unsigned long) "seek";
59 args[1] = 3;
60 args[2] = 1;
61 args[3] = (unsigned int) dhandle;
62 args[4] = seekhi;
63 args[5] = seeklo;
64 args[6] = (unsigned long) -1;
65
66 p1275_cmd_direct(args);
41} 67}
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index 39fc6af21b7c..6cb1581d6aef 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -20,10 +20,17 @@
20 20
21int prom_service_exists(const char *service_name) 21int prom_service_exists(const char *service_name)
22{ 22{
23 int err = p1275_cmd("test", P1275_ARG(0, P1275_ARG_IN_STRING) | 23 unsigned long args[5];
24 P1275_INOUT(1, 1), service_name);
25 24
26 if (err) 25 args[0] = (unsigned long) "test";
26 args[1] = 1;
27 args[2] = 1;
28 args[3] = (unsigned long) service_name;
29 args[4] = (unsigned long) -1;
30
31 p1275_cmd_direct(args);
32
33 if (args[4])
27 return 0; 34 return 0;
28 return 1; 35 return 1;
29} 36}
@@ -31,30 +38,47 @@ int prom_service_exists(const char *service_name)
31void prom_sun4v_guest_soft_state(void) 38void prom_sun4v_guest_soft_state(void)
32{ 39{
33 const char *svc = "SUNW,soft-state-supported"; 40 const char *svc = "SUNW,soft-state-supported";
41 unsigned long args[3];
34 42
35 if (!prom_service_exists(svc)) 43 if (!prom_service_exists(svc))
36 return; 44 return;
37 p1275_cmd(svc, P1275_INOUT(0, 0)); 45 args[0] = (unsigned long) svc;
46 args[1] = 0;
47 args[2] = 0;
48 p1275_cmd_direct(args);
38} 49}
39 50
40/* Reset and reboot the machine with the command 'bcommand'. */ 51/* Reset and reboot the machine with the command 'bcommand'. */
41void prom_reboot(const char *bcommand) 52void prom_reboot(const char *bcommand)
42{ 53{
54 unsigned long args[4];
55
43#ifdef CONFIG_SUN_LDOMS 56#ifdef CONFIG_SUN_LDOMS
44 if (ldom_domaining_enabled) 57 if (ldom_domaining_enabled)
45 ldom_reboot(bcommand); 58 ldom_reboot(bcommand);
46#endif 59#endif
47 p1275_cmd("boot", P1275_ARG(0, P1275_ARG_IN_STRING) | 60 args[0] = (unsigned long) "boot";
48 P1275_INOUT(1, 0), bcommand); 61 args[1] = 1;
62 args[2] = 0;
63 args[3] = (unsigned long) bcommand;
64
65 p1275_cmd_direct(args);
49} 66}
50 67
51/* Forth evaluate the expression contained in 'fstring'. */ 68/* Forth evaluate the expression contained in 'fstring'. */
52void prom_feval(const char *fstring) 69void prom_feval(const char *fstring)
53{ 70{
71 unsigned long args[5];
72
54 if (!fstring || fstring[0] == 0) 73 if (!fstring || fstring[0] == 0)
55 return; 74 return;
56 p1275_cmd("interpret", P1275_ARG(0, P1275_ARG_IN_STRING) | 75 args[0] = (unsigned long) "interpret";
57 P1275_INOUT(1, 1), fstring); 76 args[1] = 1;
77 args[2] = 1;
78 args[3] = (unsigned long) fstring;
79 args[4] = (unsigned long) -1;
80
81 p1275_cmd_direct(args);
58} 82}
59EXPORT_SYMBOL(prom_feval); 83EXPORT_SYMBOL(prom_feval);
60 84
@@ -68,6 +92,7 @@ extern void smp_release(void);
68 */ 92 */
69void prom_cmdline(void) 93void prom_cmdline(void)
70{ 94{
95 unsigned long args[3];
71 unsigned long flags; 96 unsigned long flags;
72 97
73 local_irq_save(flags); 98 local_irq_save(flags);
@@ -76,7 +101,11 @@ void prom_cmdline(void)
76 smp_capture(); 101 smp_capture();
77#endif 102#endif
78 103
79 p1275_cmd("enter", P1275_INOUT(0, 0)); 104 args[0] = (unsigned long) "enter";
105 args[1] = 0;
106 args[2] = 0;
107
108 p1275_cmd_direct(args);
80 109
81#ifdef CONFIG_SMP 110#ifdef CONFIG_SMP
82 smp_release(); 111 smp_release();
@@ -90,22 +119,32 @@ void prom_cmdline(void)
90 */ 119 */
91void notrace prom_halt(void) 120void notrace prom_halt(void)
92{ 121{
122 unsigned long args[3];
123
93#ifdef CONFIG_SUN_LDOMS 124#ifdef CONFIG_SUN_LDOMS
94 if (ldom_domaining_enabled) 125 if (ldom_domaining_enabled)
95 ldom_power_off(); 126 ldom_power_off();
96#endif 127#endif
97again: 128again:
98 p1275_cmd("exit", P1275_INOUT(0, 0)); 129 args[0] = (unsigned long) "exit";
130 args[1] = 0;
131 args[2] = 0;
132 p1275_cmd_direct(args);
99 goto again; /* PROM is out to get me -DaveM */ 133 goto again; /* PROM is out to get me -DaveM */
100} 134}
101 135
102void prom_halt_power_off(void) 136void prom_halt_power_off(void)
103{ 137{
138 unsigned long args[3];
139
104#ifdef CONFIG_SUN_LDOMS 140#ifdef CONFIG_SUN_LDOMS
105 if (ldom_domaining_enabled) 141 if (ldom_domaining_enabled)
106 ldom_power_off(); 142 ldom_power_off();
107#endif 143#endif
108 p1275_cmd("SUNW,power-off", P1275_INOUT(0, 0)); 144 args[0] = (unsigned long) "SUNW,power-off";
145 args[1] = 0;
146 args[2] = 0;
147 p1275_cmd_direct(args);
109 148
110 /* if nothing else helps, we just halt */ 149 /* if nothing else helps, we just halt */
111 prom_halt(); 150 prom_halt();
@@ -114,10 +153,15 @@ void prom_halt_power_off(void)
114/* Set prom sync handler to call function 'funcp'. */ 153/* Set prom sync handler to call function 'funcp'. */
115void prom_setcallback(callback_func_t funcp) 154void prom_setcallback(callback_func_t funcp)
116{ 155{
156 unsigned long args[5];
117 if (!funcp) 157 if (!funcp)
118 return; 158 return;
119 p1275_cmd("set-callback", P1275_ARG(0, P1275_ARG_IN_FUNCTION) | 159 args[0] = (unsigned long) "set-callback";
120 P1275_INOUT(1, 1), funcp); 160 args[1] = 1;
161 args[2] = 1;
162 args[3] = (unsigned long) funcp;
163 args[4] = (unsigned long) -1;
164 p1275_cmd_direct(args);
121} 165}
122 166
123/* Get the idprom and stuff it into buffer 'idbuf'. Returns the 167/* Get the idprom and stuff it into buffer 'idbuf'. Returns the
@@ -173,57 +217,61 @@ static int prom_get_memory_ihandle(void)
173} 217}
174 218
175/* Load explicit I/D TLB entries. */ 219/* Load explicit I/D TLB entries. */
220static long tlb_load(const char *type, unsigned long index,
221 unsigned long tte_data, unsigned long vaddr)
222{
223 unsigned long args[9];
224
225 args[0] = (unsigned long) prom_callmethod_name;
226 args[1] = 5;
227 args[2] = 1;
228 args[3] = (unsigned long) type;
229 args[4] = (unsigned int) prom_get_mmu_ihandle();
230 args[5] = vaddr;
231 args[6] = tte_data;
232 args[7] = index;
233 args[8] = (unsigned long) -1;
234
235 p1275_cmd_direct(args);
236
237 return (long) args[8];
238}
239
176long prom_itlb_load(unsigned long index, 240long prom_itlb_load(unsigned long index,
177 unsigned long tte_data, 241 unsigned long tte_data,
178 unsigned long vaddr) 242 unsigned long vaddr)
179{ 243{
180 return p1275_cmd(prom_callmethod_name, 244 return tlb_load("SUNW,itlb-load", index, tte_data, vaddr);
181 (P1275_ARG(0, P1275_ARG_IN_STRING) |
182 P1275_ARG(2, P1275_ARG_IN_64B) |
183 P1275_ARG(3, P1275_ARG_IN_64B) |
184 P1275_INOUT(5, 1)),
185 "SUNW,itlb-load",
186 prom_get_mmu_ihandle(),
187 /* And then our actual args are pushed backwards. */
188 vaddr,
189 tte_data,
190 index);
191} 245}
192 246
193long prom_dtlb_load(unsigned long index, 247long prom_dtlb_load(unsigned long index,
194 unsigned long tte_data, 248 unsigned long tte_data,
195 unsigned long vaddr) 249 unsigned long vaddr)
196{ 250{
197 return p1275_cmd(prom_callmethod_name, 251 return tlb_load("SUNW,dtlb-load", index, tte_data, vaddr);
198 (P1275_ARG(0, P1275_ARG_IN_STRING) |
199 P1275_ARG(2, P1275_ARG_IN_64B) |
200 P1275_ARG(3, P1275_ARG_IN_64B) |
201 P1275_INOUT(5, 1)),
202 "SUNW,dtlb-load",
203 prom_get_mmu_ihandle(),
204 /* And then our actual args are pushed backwards. */
205 vaddr,
206 tte_data,
207 index);
208} 252}
209 253
210int prom_map(int mode, unsigned long size, 254int prom_map(int mode, unsigned long size,
211 unsigned long vaddr, unsigned long paddr) 255 unsigned long vaddr, unsigned long paddr)
212{ 256{
213 int ret = p1275_cmd(prom_callmethod_name, 257 unsigned long args[11];
214 (P1275_ARG(0, P1275_ARG_IN_STRING) | 258 int ret;
215 P1275_ARG(3, P1275_ARG_IN_64B) | 259
216 P1275_ARG(4, P1275_ARG_IN_64B) | 260 args[0] = (unsigned long) prom_callmethod_name;
217 P1275_ARG(6, P1275_ARG_IN_64B) | 261 args[1] = 7;
218 P1275_INOUT(7, 1)), 262 args[2] = 1;
219 prom_map_name, 263 args[3] = (unsigned long) prom_map_name;
220 prom_get_mmu_ihandle(), 264 args[4] = (unsigned int) prom_get_mmu_ihandle();
221 mode, 265 args[5] = (unsigned int) mode;
222 size, 266 args[6] = size;
223 vaddr, 267 args[7] = vaddr;
224 0, 268 args[8] = 0;
225 paddr); 269 args[9] = paddr;
226 270 args[10] = (unsigned long) -1;
271
272 p1275_cmd_direct(args);
273
274 ret = (int) args[10];
227 if (ret == 0) 275 if (ret == 0)
228 ret = -1; 276 ret = -1;
229 return ret; 277 return ret;
@@ -231,40 +279,51 @@ int prom_map(int mode, unsigned long size,
231 279
232void prom_unmap(unsigned long size, unsigned long vaddr) 280void prom_unmap(unsigned long size, unsigned long vaddr)
233{ 281{
234 p1275_cmd(prom_callmethod_name, 282 unsigned long args[7];
235 (P1275_ARG(0, P1275_ARG_IN_STRING) | 283
236 P1275_ARG(2, P1275_ARG_IN_64B) | 284 args[0] = (unsigned long) prom_callmethod_name;
237 P1275_ARG(3, P1275_ARG_IN_64B) | 285 args[1] = 4;
238 P1275_INOUT(4, 0)), 286 args[2] = 0;
239 prom_unmap_name, 287 args[3] = (unsigned long) prom_unmap_name;
240 prom_get_mmu_ihandle(), 288 args[4] = (unsigned int) prom_get_mmu_ihandle();
241 size, 289 args[5] = size;
242 vaddr); 290 args[6] = vaddr;
291
292 p1275_cmd_direct(args);
243} 293}
244 294
245/* Set aside physical memory which is not touched or modified 295/* Set aside physical memory which is not touched or modified
246 * across soft resets. 296 * across soft resets.
247 */ 297 */
248unsigned long prom_retain(const char *name, 298int prom_retain(const char *name, unsigned long size,
249 unsigned long pa_low, unsigned long pa_high, 299 unsigned long align, unsigned long *paddr)
250 long size, long align)
251{ 300{
252 /* XXX I don't think we return multiple values correctly. 301 unsigned long args[11];
253 * XXX OBP supposedly returns pa_low/pa_high here, how does 302
254 * XXX it work? 303 args[0] = (unsigned long) prom_callmethod_name;
304 args[1] = 5;
305 args[2] = 3;
306 args[3] = (unsigned long) "SUNW,retain";
307 args[4] = (unsigned int) prom_get_memory_ihandle();
308 args[5] = align;
309 args[6] = size;
310 args[7] = (unsigned long) name;
311 args[8] = (unsigned long) -1;
312 args[9] = (unsigned long) -1;
313 args[10] = (unsigned long) -1;
314
315 p1275_cmd_direct(args);
316
317 if (args[8])
318 return (int) args[8];
319
320 /* Next we get "phys_high" then "phys_low". On 64-bit
321 * the phys_high cell is don't care since the phys_low
322 * cell has the full value.
255 */ 323 */
324 *paddr = args[10];
256 325
257 /* If align is zero, the pa_low/pa_high args are passed, 326 return 0;
258 * else they are not.
259 */
260 if (align == 0)
261 return p1275_cmd("SUNW,retain",
262 (P1275_ARG(0, P1275_ARG_IN_BUF) | P1275_INOUT(5, 2)),
263 name, pa_low, pa_high, size, align);
264 else
265 return p1275_cmd("SUNW,retain",
266 (P1275_ARG(0, P1275_ARG_IN_BUF) | P1275_INOUT(3, 2)),
267 name, size, align);
268} 327}
269 328
270/* Get "Unumber" string for the SIMM at the given 329/* Get "Unumber" string for the SIMM at the given
@@ -277,62 +336,129 @@ int prom_getunumber(int syndrome_code,
277 unsigned long phys_addr, 336 unsigned long phys_addr,
278 char *buf, int buflen) 337 char *buf, int buflen)
279{ 338{
280 return p1275_cmd(prom_callmethod_name, 339 unsigned long args[12];
281 (P1275_ARG(0, P1275_ARG_IN_STRING) | 340
282 P1275_ARG(3, P1275_ARG_OUT_BUF) | 341 args[0] = (unsigned long) prom_callmethod_name;
283 P1275_ARG(6, P1275_ARG_IN_64B) | 342 args[1] = 7;
284 P1275_INOUT(8, 2)), 343 args[2] = 2;
285 "SUNW,get-unumber", prom_get_memory_ihandle(), 344 args[3] = (unsigned long) "SUNW,get-unumber";
286 buflen, buf, P1275_SIZE(buflen), 345 args[4] = (unsigned int) prom_get_memory_ihandle();
287 0, phys_addr, syndrome_code); 346 args[5] = buflen;
347 args[6] = (unsigned long) buf;
348 args[7] = 0;
349 args[8] = phys_addr;
350 args[9] = (unsigned int) syndrome_code;
351 args[10] = (unsigned long) -1;
352 args[11] = (unsigned long) -1;
353
354 p1275_cmd_direct(args);
355
356 return (int) args[10];
288} 357}
289 358
290/* Power management extensions. */ 359/* Power management extensions. */
291void prom_sleepself(void) 360void prom_sleepself(void)
292{ 361{
293 p1275_cmd("SUNW,sleep-self", P1275_INOUT(0, 0)); 362 unsigned long args[3];
363
364 args[0] = (unsigned long) "SUNW,sleep-self";
365 args[1] = 0;
366 args[2] = 0;
367 p1275_cmd_direct(args);
294} 368}
295 369
296int prom_sleepsystem(void) 370int prom_sleepsystem(void)
297{ 371{
298 return p1275_cmd("SUNW,sleep-system", P1275_INOUT(0, 1)); 372 unsigned long args[4];
373
374 args[0] = (unsigned long) "SUNW,sleep-system";
375 args[1] = 0;
376 args[2] = 1;
377 args[3] = (unsigned long) -1;
378 p1275_cmd_direct(args);
379
380 return (int) args[3];
299} 381}
300 382
301int prom_wakeupsystem(void) 383int prom_wakeupsystem(void)
302{ 384{
303 return p1275_cmd("SUNW,wakeup-system", P1275_INOUT(0, 1)); 385 unsigned long args[4];
386
387 args[0] = (unsigned long) "SUNW,wakeup-system";
388 args[1] = 0;
389 args[2] = 1;
390 args[3] = (unsigned long) -1;
391 p1275_cmd_direct(args);
392
393 return (int) args[3];
304} 394}
305 395
306#ifdef CONFIG_SMP 396#ifdef CONFIG_SMP
307void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg) 397void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg)
308{ 398{
309 p1275_cmd("SUNW,start-cpu", P1275_INOUT(3, 0), cpunode, pc, arg); 399 unsigned long args[6];
400
401 args[0] = (unsigned long) "SUNW,start-cpu";
402 args[1] = 3;
403 args[2] = 0;
404 args[3] = (unsigned int) cpunode;
405 args[4] = pc;
406 args[5] = arg;
407 p1275_cmd_direct(args);
310} 408}
311 409
312void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg) 410void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg)
313{ 411{
314 p1275_cmd("SUNW,start-cpu-by-cpuid", P1275_INOUT(3, 0), 412 unsigned long args[6];
315 cpuid, pc, arg); 413
414 args[0] = (unsigned long) "SUNW,start-cpu-by-cpuid";
415 args[1] = 3;
416 args[2] = 0;
417 args[3] = (unsigned int) cpuid;
418 args[4] = pc;
419 args[5] = arg;
420 p1275_cmd_direct(args);
316} 421}
317 422
318void prom_stopcpu_cpuid(int cpuid) 423void prom_stopcpu_cpuid(int cpuid)
319{ 424{
320 p1275_cmd("SUNW,stop-cpu-by-cpuid", P1275_INOUT(1, 0), 425 unsigned long args[4];
321 cpuid); 426
427 args[0] = (unsigned long) "SUNW,stop-cpu-by-cpuid";
428 args[1] = 1;
429 args[2] = 0;
430 args[3] = (unsigned int) cpuid;
431 p1275_cmd_direct(args);
322} 432}
323 433
324void prom_stopself(void) 434void prom_stopself(void)
325{ 435{
326 p1275_cmd("SUNW,stop-self", P1275_INOUT(0, 0)); 436 unsigned long args[3];
437
438 args[0] = (unsigned long) "SUNW,stop-self";
439 args[1] = 0;
440 args[2] = 0;
441 p1275_cmd_direct(args);
327} 442}
328 443
329void prom_idleself(void) 444void prom_idleself(void)
330{ 445{
331 p1275_cmd("SUNW,idle-self", P1275_INOUT(0, 0)); 446 unsigned long args[3];
447
448 args[0] = (unsigned long) "SUNW,idle-self";
449 args[1] = 0;
450 args[2] = 0;
451 p1275_cmd_direct(args);
332} 452}
333 453
334void prom_resumecpu(int cpunode) 454void prom_resumecpu(int cpunode)
335{ 455{
336 p1275_cmd("SUNW,resume-cpu", P1275_INOUT(1, 0), cpunode); 456 unsigned long args[4];
457
458 args[0] = (unsigned long) "SUNW,resume-cpu";
459 args[1] = 1;
460 args[2] = 0;
461 args[3] = (unsigned int) cpunode;
462 p1275_cmd_direct(args);
337} 463}
338#endif 464#endif
diff --git a/arch/sparc/prom/p1275.c b/arch/sparc/prom/p1275.c
index 2d8b70d397f1..fa6e4e219b9c 100644
--- a/arch/sparc/prom/p1275.c
+++ b/arch/sparc/prom/p1275.c
@@ -22,13 +22,11 @@ struct {
22 long prom_callback; /* 0x00 */ 22 long prom_callback; /* 0x00 */
23 void (*prom_cif_handler)(long *); /* 0x08 */ 23 void (*prom_cif_handler)(long *); /* 0x08 */
24 unsigned long prom_cif_stack; /* 0x10 */ 24 unsigned long prom_cif_stack; /* 0x10 */
25 unsigned long prom_args [23]; /* 0x18 */
26 char prom_buffer [3000];
27} p1275buf; 25} p1275buf;
28 26
29extern void prom_world(int); 27extern void prom_world(int);
30 28
31extern void prom_cif_interface(void); 29extern void prom_cif_direct(unsigned long *args);
32extern void prom_cif_callback(void); 30extern void prom_cif_callback(void);
33 31
34/* 32/*
@@ -36,114 +34,20 @@ extern void prom_cif_callback(void);
36 */ 34 */
37DEFINE_RAW_SPINLOCK(prom_entry_lock); 35DEFINE_RAW_SPINLOCK(prom_entry_lock);
38 36
39long p1275_cmd(const char *service, long fmt, ...) 37void p1275_cmd_direct(unsigned long *args)
40{ 38{
41 char *p, *q;
42 unsigned long flags; 39 unsigned long flags;
43 int nargs, nrets, i;
44 va_list list;
45 long attrs, x;
46
47 p = p1275buf.prom_buffer;
48 40
49 raw_local_save_flags(flags); 41 raw_local_save_flags(flags);
50 raw_local_irq_restore(PIL_NMI); 42 raw_local_irq_restore(PIL_NMI);
51 raw_spin_lock(&prom_entry_lock); 43 raw_spin_lock(&prom_entry_lock);
52 44
53 p1275buf.prom_args[0] = (unsigned long)p; /* service */
54 strcpy (p, service);
55 p = (char *)(((long)(strchr (p, 0) + 8)) & ~7);
56 p1275buf.prom_args[1] = nargs = (fmt & 0x0f); /* nargs */
57 p1275buf.prom_args[2] = nrets = ((fmt & 0xf0) >> 4); /* nrets */
58 attrs = fmt >> 8;
59 va_start(list, fmt);
60 for (i = 0; i < nargs; i++, attrs >>= 3) {
61 switch (attrs & 0x7) {
62 case P1275_ARG_NUMBER:
63 p1275buf.prom_args[i + 3] =
64 (unsigned)va_arg(list, long);
65 break;
66 case P1275_ARG_IN_64B:
67 p1275buf.prom_args[i + 3] =
68 va_arg(list, unsigned long);
69 break;
70 case P1275_ARG_IN_STRING:
71 strcpy (p, va_arg(list, char *));
72 p1275buf.prom_args[i + 3] = (unsigned long)p;
73 p = (char *)(((long)(strchr (p, 0) + 8)) & ~7);
74 break;
75 case P1275_ARG_OUT_BUF:
76 (void) va_arg(list, char *);
77 p1275buf.prom_args[i + 3] = (unsigned long)p;
78 x = va_arg(list, long);
79 i++; attrs >>= 3;
80 p = (char *)(((long)(p + (int)x + 7)) & ~7);
81 p1275buf.prom_args[i + 3] = x;
82 break;
83 case P1275_ARG_IN_BUF:
84 q = va_arg(list, char *);
85 p1275buf.prom_args[i + 3] = (unsigned long)p;
86 x = va_arg(list, long);
87 i++; attrs >>= 3;
88 memcpy (p, q, (int)x);
89 p = (char *)(((long)(p + (int)x + 7)) & ~7);
90 p1275buf.prom_args[i + 3] = x;
91 break;
92 case P1275_ARG_OUT_32B:
93 (void) va_arg(list, char *);
94 p1275buf.prom_args[i + 3] = (unsigned long)p;
95 p += 32;
96 break;
97 case P1275_ARG_IN_FUNCTION:
98 p1275buf.prom_args[i + 3] =
99 (unsigned long)prom_cif_callback;
100 p1275buf.prom_callback = va_arg(list, long);
101 break;
102 }
103 }
104 va_end(list);
105
106 prom_world(1); 45 prom_world(1);
107 prom_cif_interface(); 46 prom_cif_direct(args);
108 prom_world(0); 47 prom_world(0);
109 48
110 attrs = fmt >> 8;
111 va_start(list, fmt);
112 for (i = 0; i < nargs; i++, attrs >>= 3) {
113 switch (attrs & 0x7) {
114 case P1275_ARG_NUMBER:
115 (void) va_arg(list, long);
116 break;
117 case P1275_ARG_IN_STRING:
118 (void) va_arg(list, char *);
119 break;
120 case P1275_ARG_IN_FUNCTION:
121 (void) va_arg(list, long);
122 break;
123 case P1275_ARG_IN_BUF:
124 (void) va_arg(list, char *);
125 (void) va_arg(list, long);
126 i++; attrs >>= 3;
127 break;
128 case P1275_ARG_OUT_BUF:
129 p = va_arg(list, char *);
130 x = va_arg(list, long);
131 memcpy (p, (char *)(p1275buf.prom_args[i + 3]), (int)x);
132 i++; attrs >>= 3;
133 break;
134 case P1275_ARG_OUT_32B:
135 p = va_arg(list, char *);
136 memcpy (p, (char *)(p1275buf.prom_args[i + 3]), 32);
137 break;
138 }
139 }
140 va_end(list);
141 x = p1275buf.prom_args [nargs + 3];
142
143 raw_spin_unlock(&prom_entry_lock); 49 raw_spin_unlock(&prom_entry_lock);
144 raw_local_irq_restore(flags); 50 raw_local_irq_restore(flags);
145
146 return x;
147} 51}
148 52
149void prom_cif_init(void *cif_handler, void *cif_stack) 53void prom_cif_init(void *cif_handler, void *cif_stack)
diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c
index 3c0d2dd9f693..9d3f9137a43a 100644
--- a/arch/sparc/prom/tree_64.c
+++ b/arch/sparc/prom/tree_64.c
@@ -16,22 +16,39 @@
16#include <asm/oplib.h> 16#include <asm/oplib.h>
17#include <asm/ldc.h> 17#include <asm/ldc.h>
18 18
19static int prom_node_to_node(const char *type, int node)
20{
21 unsigned long args[5];
22
23 args[0] = (unsigned long) type;
24 args[1] = 1;
25 args[2] = 1;
26 args[3] = (unsigned int) node;
27 args[4] = (unsigned long) -1;
28
29 p1275_cmd_direct(args);
30
31 return (int) args[4];
32}
33
19/* Return the child of node 'node' or zero if no this node has no 34/* Return the child of node 'node' or zero if no this node has no
20 * direct descendent. 35 * direct descendent.
21 */ 36 */
22inline int __prom_getchild(int node) 37inline int __prom_getchild(int node)
23{ 38{
24 return p1275_cmd ("child", P1275_INOUT(1, 1), node); 39 return prom_node_to_node("child", node);
25} 40}
26 41
27inline int prom_getchild(int node) 42inline int prom_getchild(int node)
28{ 43{
29 int cnode; 44 int cnode;
30 45
31 if(node == -1) return 0; 46 if (node == -1)
47 return 0;
32 cnode = __prom_getchild(node); 48 cnode = __prom_getchild(node);
33 if(cnode == -1) return 0; 49 if (cnode == -1)
34 return (int)cnode; 50 return 0;
51 return cnode;
35} 52}
36EXPORT_SYMBOL(prom_getchild); 53EXPORT_SYMBOL(prom_getchild);
37 54
@@ -39,10 +56,12 @@ inline int prom_getparent(int node)
39{ 56{
40 int cnode; 57 int cnode;
41 58
42 if(node == -1) return 0; 59 if (node == -1)
43 cnode = p1275_cmd ("parent", P1275_INOUT(1, 1), node); 60 return 0;
44 if(cnode == -1) return 0; 61 cnode = prom_node_to_node("parent", node);
45 return (int)cnode; 62 if (cnode == -1)
63 return 0;
64 return cnode;
46} 65}
47 66
48/* Return the next sibling of node 'node' or zero if no more siblings 67/* Return the next sibling of node 'node' or zero if no more siblings
@@ -50,7 +69,7 @@ inline int prom_getparent(int node)
50 */ 69 */
51inline int __prom_getsibling(int node) 70inline int __prom_getsibling(int node)
52{ 71{
53 return p1275_cmd(prom_peer_name, P1275_INOUT(1, 1), node); 72 return prom_node_to_node(prom_peer_name, node);
54} 73}
55 74
56inline int prom_getsibling(int node) 75inline int prom_getsibling(int node)
@@ -72,11 +91,21 @@ EXPORT_SYMBOL(prom_getsibling);
72 */ 91 */
73inline int prom_getproplen(int node, const char *prop) 92inline int prom_getproplen(int node, const char *prop)
74{ 93{
75 if((!node) || (!prop)) return -1; 94 unsigned long args[6];
76 return p1275_cmd ("getproplen", 95
77 P1275_ARG(1,P1275_ARG_IN_STRING)| 96 if (!node || !prop)
78 P1275_INOUT(2, 1), 97 return -1;
79 node, prop); 98
99 args[0] = (unsigned long) "getproplen";
100 args[1] = 2;
101 args[2] = 1;
102 args[3] = (unsigned int) node;
103 args[4] = (unsigned long) prop;
104 args[5] = (unsigned long) -1;
105
106 p1275_cmd_direct(args);
107
108 return (int) args[5];
80} 109}
81EXPORT_SYMBOL(prom_getproplen); 110EXPORT_SYMBOL(prom_getproplen);
82 111
@@ -87,19 +116,25 @@ EXPORT_SYMBOL(prom_getproplen);
87inline int prom_getproperty(int node, const char *prop, 116inline int prom_getproperty(int node, const char *prop,
88 char *buffer, int bufsize) 117 char *buffer, int bufsize)
89{ 118{
119 unsigned long args[8];
90 int plen; 120 int plen;
91 121
92 plen = prom_getproplen(node, prop); 122 plen = prom_getproplen(node, prop);
93 if ((plen > bufsize) || (plen == 0) || (plen == -1)) { 123 if ((plen > bufsize) || (plen == 0) || (plen == -1))
94 return -1; 124 return -1;
95 } else { 125
96 /* Ok, things seem all right. */ 126 args[0] = (unsigned long) prom_getprop_name;
97 return p1275_cmd(prom_getprop_name, 127 args[1] = 4;
98 P1275_ARG(1,P1275_ARG_IN_STRING)| 128 args[2] = 1;
99 P1275_ARG(2,P1275_ARG_OUT_BUF)| 129 args[3] = (unsigned int) node;
100 P1275_INOUT(4, 1), 130 args[4] = (unsigned long) prop;
101 node, prop, buffer, P1275_SIZE(plen)); 131 args[5] = (unsigned long) buffer;
102 } 132 args[6] = bufsize;
133 args[7] = (unsigned long) -1;
134
135 p1275_cmd_direct(args);
136
137 return (int) args[7];
103} 138}
104EXPORT_SYMBOL(prom_getproperty); 139EXPORT_SYMBOL(prom_getproperty);
105 140
@@ -110,7 +145,7 @@ inline int prom_getint(int node, const char *prop)
110{ 145{
111 int intprop; 146 int intprop;
112 147
113 if(prom_getproperty(node, prop, (char *) &intprop, sizeof(int)) != -1) 148 if (prom_getproperty(node, prop, (char *) &intprop, sizeof(int)) != -1)
114 return intprop; 149 return intprop;
115 150
116 return -1; 151 return -1;
@@ -126,7 +161,8 @@ int prom_getintdefault(int node, const char *property, int deflt)
126 int retval; 161 int retval;
127 162
128 retval = prom_getint(node, property); 163 retval = prom_getint(node, property);
129 if(retval == -1) return deflt; 164 if (retval == -1)
165 return deflt;
130 166
131 return retval; 167 return retval;
132} 168}
@@ -138,7 +174,8 @@ int prom_getbool(int node, const char *prop)
138 int retval; 174 int retval;
139 175
140 retval = prom_getproplen(node, prop); 176 retval = prom_getproplen(node, prop);
141 if(retval == -1) return 0; 177 if (retval == -1)
178 return 0;
142 return 1; 179 return 1;
143} 180}
144EXPORT_SYMBOL(prom_getbool); 181EXPORT_SYMBOL(prom_getbool);
@@ -152,7 +189,8 @@ void prom_getstring(int node, const char *prop, char *user_buf, int ubuf_size)
152 int len; 189 int len;
153 190
154 len = prom_getproperty(node, prop, user_buf, ubuf_size); 191 len = prom_getproperty(node, prop, user_buf, ubuf_size);
155 if(len != -1) return; 192 if (len != -1)
193 return;
156 user_buf[0] = 0; 194 user_buf[0] = 0;
157} 195}
158EXPORT_SYMBOL(prom_getstring); 196EXPORT_SYMBOL(prom_getstring);
@@ -164,7 +202,8 @@ int prom_nodematch(int node, const char *name)
164{ 202{
165 char namebuf[128]; 203 char namebuf[128];
166 prom_getproperty(node, "name", namebuf, sizeof(namebuf)); 204 prom_getproperty(node, "name", namebuf, sizeof(namebuf));
167 if(strcmp(namebuf, name) == 0) return 1; 205 if (strcmp(namebuf, name) == 0)
206 return 1;
168 return 0; 207 return 0;
169} 208}
170 209
@@ -190,16 +229,29 @@ int prom_searchsiblings(int node_start, const char *nodename)
190} 229}
191EXPORT_SYMBOL(prom_searchsiblings); 230EXPORT_SYMBOL(prom_searchsiblings);
192 231
232static const char *prom_nextprop_name = "nextprop";
233
193/* Return the first property type for node 'node'. 234/* Return the first property type for node 'node'.
194 * buffer should be at least 32B in length 235 * buffer should be at least 32B in length
195 */ 236 */
196inline char *prom_firstprop(int node, char *buffer) 237inline char *prom_firstprop(int node, char *buffer)
197{ 238{
239 unsigned long args[7];
240
198 *buffer = 0; 241 *buffer = 0;
199 if(node == -1) return buffer; 242 if (node == -1)
200 p1275_cmd ("nextprop", P1275_ARG(2,P1275_ARG_OUT_32B)| 243 return buffer;
201 P1275_INOUT(3, 0), 244
202 node, (char *) 0x0, buffer); 245 args[0] = (unsigned long) prom_nextprop_name;
246 args[1] = 3;
247 args[2] = 1;
248 args[3] = (unsigned int) node;
249 args[4] = 0;
250 args[5] = (unsigned long) buffer;
251 args[6] = (unsigned long) -1;
252
253 p1275_cmd_direct(args);
254
203 return buffer; 255 return buffer;
204} 256}
205EXPORT_SYMBOL(prom_firstprop); 257EXPORT_SYMBOL(prom_firstprop);
@@ -210,9 +262,10 @@ EXPORT_SYMBOL(prom_firstprop);
210 */ 262 */
211inline char *prom_nextprop(int node, const char *oprop, char *buffer) 263inline char *prom_nextprop(int node, const char *oprop, char *buffer)
212{ 264{
265 unsigned long args[7];
213 char buf[32]; 266 char buf[32];
214 267
215 if(node == -1) { 268 if (node == -1) {
216 *buffer = 0; 269 *buffer = 0;
217 return buffer; 270 return buffer;
218 } 271 }
@@ -220,10 +273,17 @@ inline char *prom_nextprop(int node, const char *oprop, char *buffer)
220 strcpy (buf, oprop); 273 strcpy (buf, oprop);
221 oprop = buf; 274 oprop = buf;
222 } 275 }
223 p1275_cmd ("nextprop", P1275_ARG(1,P1275_ARG_IN_STRING)| 276
224 P1275_ARG(2,P1275_ARG_OUT_32B)| 277 args[0] = (unsigned long) prom_nextprop_name;
225 P1275_INOUT(3, 0), 278 args[1] = 3;
226 node, oprop, buffer); 279 args[2] = 1;
280 args[3] = (unsigned int) node;
281 args[4] = (unsigned long) oprop;
282 args[5] = (unsigned long) buffer;
283 args[6] = (unsigned long) -1;
284
285 p1275_cmd_direct(args);
286
227 return buffer; 287 return buffer;
228} 288}
229EXPORT_SYMBOL(prom_nextprop); 289EXPORT_SYMBOL(prom_nextprop);
@@ -231,12 +291,19 @@ EXPORT_SYMBOL(prom_nextprop);
231int 291int
232prom_finddevice(const char *name) 292prom_finddevice(const char *name)
233{ 293{
294 unsigned long args[5];
295
234 if (!name) 296 if (!name)
235 return 0; 297 return 0;
236 return p1275_cmd(prom_finddev_name, 298 args[0] = (unsigned long) "finddevice";
237 P1275_ARG(0,P1275_ARG_IN_STRING)| 299 args[1] = 1;
238 P1275_INOUT(1, 1), 300 args[2] = 1;
239 name); 301 args[3] = (unsigned long) name;
302 args[4] = (unsigned long) -1;
303
304 p1275_cmd_direct(args);
305
306 return (int) args[4];
240} 307}
241EXPORT_SYMBOL(prom_finddevice); 308EXPORT_SYMBOL(prom_finddevice);
242 309
@@ -247,7 +314,7 @@ int prom_node_has_property(int node, const char *prop)
247 *buf = 0; 314 *buf = 0;
248 do { 315 do {
249 prom_nextprop(node, buf, buf); 316 prom_nextprop(node, buf, buf);
250 if(!strcmp(buf, prop)) 317 if (!strcmp(buf, prop))
251 return 1; 318 return 1;
252 } while (*buf); 319 } while (*buf);
253 return 0; 320 return 0;
@@ -260,6 +327,8 @@ EXPORT_SYMBOL(prom_node_has_property);
260int 327int
261prom_setprop(int node, const char *pname, char *value, int size) 328prom_setprop(int node, const char *pname, char *value, int size)
262{ 329{
330 unsigned long args[8];
331
263 if (size == 0) 332 if (size == 0)
264 return 0; 333 return 0;
265 if ((pname == 0) || (value == 0)) 334 if ((pname == 0) || (value == 0))
@@ -271,19 +340,37 @@ prom_setprop(int node, const char *pname, char *value, int size)
271 return 0; 340 return 0;
272 } 341 }
273#endif 342#endif
274 return p1275_cmd ("setprop", P1275_ARG(1,P1275_ARG_IN_STRING)| 343 args[0] = (unsigned long) "setprop";
275 P1275_ARG(2,P1275_ARG_IN_BUF)| 344 args[1] = 4;
276 P1275_INOUT(4, 1), 345 args[2] = 1;
277 node, pname, value, P1275_SIZE(size)); 346 args[3] = (unsigned int) node;
347 args[4] = (unsigned long) pname;
348 args[5] = (unsigned long) value;
349 args[6] = size;
350 args[7] = (unsigned long) -1;
351
352 p1275_cmd_direct(args);
353
354 return (int) args[7];
278} 355}
279EXPORT_SYMBOL(prom_setprop); 356EXPORT_SYMBOL(prom_setprop);
280 357
281inline int prom_inst2pkg(int inst) 358inline int prom_inst2pkg(int inst)
282{ 359{
360 unsigned long args[5];
283 int node; 361 int node;
284 362
285 node = p1275_cmd ("instance-to-package", P1275_INOUT(1, 1), inst); 363 args[0] = (unsigned long) "instance-to-package";
286 if (node == -1) return 0; 364 args[1] = 1;
365 args[2] = 1;
366 args[3] = (unsigned int) inst;
367 args[4] = (unsigned long) -1;
368
369 p1275_cmd_direct(args);
370
371 node = (int) args[4];
372 if (node == -1)
373 return 0;
287 return node; 374 return node;
288} 375}
289 376
@@ -296,17 +383,28 @@ prom_pathtoinode(const char *path)
296 int node, inst; 383 int node, inst;
297 384
298 inst = prom_devopen (path); 385 inst = prom_devopen (path);
299 if (inst == 0) return 0; 386 if (inst == 0)
300 node = prom_inst2pkg (inst); 387 return 0;
301 prom_devclose (inst); 388 node = prom_inst2pkg(inst);
302 if (node == -1) return 0; 389 prom_devclose(inst);
390 if (node == -1)
391 return 0;
303 return node; 392 return node;
304} 393}
305 394
306int prom_ihandle2path(int handle, char *buffer, int bufsize) 395int prom_ihandle2path(int handle, char *buffer, int bufsize)
307{ 396{
308 return p1275_cmd("instance-to-path", 397 unsigned long args[7];
309 P1275_ARG(1,P1275_ARG_OUT_BUF)| 398
310 P1275_INOUT(3, 1), 399 args[0] = (unsigned long) "instance-to-path";
311 handle, buffer, P1275_SIZE(bufsize)); 400 args[1] = 3;
401 args[2] = 1;
402 args[3] = (unsigned int) handle;
403 args[4] = (unsigned long) buffer;
404 args[5] = bufsize;
405 args[6] = (unsigned long) -1;
406
407 p1275_cmd_direct(args);
408
409 return (int) args[6];
312} 410}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 04:45:39 -0500