projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 1998-2003 Hewlett-Packard Co | |
| 3 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
| 4 | */ | |
| 5 | ||
| 6 | #include <asm/asmmacro.h> | |
| dc90e95f | 7 | #include <asm/pal.h> |
| 1da177e4 LT |
8 | |
| 9 | .bss | |
| 10 | .align 16 | |
| 11 | stack_mem: | |
| 12 | .skip 16834 | |
| 13 | ||
| 14 | .text | |
| 15 | ||
| 16 | /* This needs to be defined because lib/string.c:strlcat() calls it in case of error... */ | |
| 17 | GLOBAL_ENTRY(printk) | |
| 18 | break 0 | |
| 19 | END(printk) | |
| 20 | ||
| 21 | GLOBAL_ENTRY(_start) | |
| 22 | .prologue | |
| 23 | .save rp, r0 | |
| 24 | .body | |
| 25 | movl gp = __gp | |
| a4cce104 | 26 | movl sp = stack_mem+16384-16 |
| 1da177e4 LT |
27 | bsw.1 |
| 28 | br.call.sptk.many rp=start_bootloader | |
| 5d36aa9b | 29 | 0: nop 0 /* dummy nop to make unwinding work */ |
| 1da177e4 LT |
30 | END(_start) |
| 31 | ||
| 32 | /* | |
| 33 | * Set a break point on this function so that symbols are available to set breakpoints in | |
| 34 | * the kernel being debugged. | |
| 35 | */ | |
| 36 | GLOBAL_ENTRY(debug_break) | |
| 37 | br.ret.sptk.many b0 | |
| 38 | END(debug_break) | |
| 39 | ||
| 40 | GLOBAL_ENTRY(ssc) | |
| 41 | .regstk 5,0,0,0 | |
| 42 | mov r15=in4 | |
| 43 | break 0x80001 | |
| 44 | br.ret.sptk.many b0 | |
| 45 | END(ssc) | |
| 46 | ||
| 47 | GLOBAL_ENTRY(jmp_to_kernel) | |
| 48 | .regstk 2,0,0,0 | |
| 49 | mov r28=in0 | |
| 50 | mov b7=in1 | |
| 51 | br.sptk.few b7 | |
| 52 | END(jmp_to_kernel) | |
| 53 | ||
| dc90e95f PC |
54 | /* |
| 55 | * r28 contains the index of the PAL function | |
| 56 | * r29--31 the args | |
| 57 | * Return values in ret0--3 (r8--11) | |
| 58 | */ | |
| 1da177e4 LT |
59 | GLOBAL_ENTRY(pal_emulator_static) |
| 60 | mov r8=-1 | |
| 61 | mov r9=256 | |
| 62 | ;; | |
| 63 | cmp.gtu p6,p7=r9,r28 /* r28 <= 255? */ | |
| 64 | (p6) br.cond.sptk.few static | |
| 65 | ;; | |
| 66 | mov r9=512 | |
| 67 | ;; | |
| 68 | cmp.gtu p6,p7=r9,r28 | |
| 69 | (p6) br.cond.sptk.few stacked | |
| 70 | ;; | |
| dc90e95f | 71 | static: cmp.eq p6,p7=PAL_PTCE_INFO,r28 |
| 1da177e4 LT |
72 | (p7) br.cond.sptk.few 1f |
| 73 | ;; | |
| 74 | mov r8=0 /* status = 0 */ | |
| 75 | movl r9=0x100000000 /* tc.base */ | |
| 76 | movl r10=0x0000000200000003 /* count[0], count[1] */ | |
| 77 | movl r11=0x1000000000002000 /* stride[0], stride[1] */ | |
| 78 | br.cond.sptk.few rp | |
| dc90e95f | 79 | 1: cmp.eq p6,p7=PAL_FREQ_RATIOS,r28 |
| 1da177e4 LT |
80 | (p7) br.cond.sptk.few 1f |
| 81 | mov r8=0 /* status = 0 */ | |
| 82 | movl r9 =0x100000064 /* proc_ratio (1/100) */ | |
| 83 | movl r10=0x100000100 /* bus_ratio<<32 (1/256) */ | |
| 84 | movl r11=0x100000064 /* itc_ratio<<32 (1/100) */ | |
| 85 | ;; | |
| dc90e95f | 86 | 1: cmp.eq p6,p7=PAL_RSE_INFO,r28 |
| 1da177e4 LT |
87 | (p7) br.cond.sptk.few 1f |
| 88 | mov r8=0 /* status = 0 */ | |
| 89 | mov r9=96 /* num phys stacked */ | |
| 90 | mov r10=0 /* hints */ | |
| 91 | mov r11=0 | |
| 92 | br.cond.sptk.few rp | |
| dc90e95f | 93 | 1: cmp.eq p6,p7=PAL_CACHE_FLUSH,r28 /* PAL_CACHE_FLUSH */ |
| 1da177e4 LT |
94 | (p7) br.cond.sptk.few 1f |
| 95 | mov r9=ar.lc | |
| 96 | movl r8=524288 /* flush 512k million cache lines (16MB) */ | |
| 97 | ;; | |
| 98 | mov ar.lc=r8 | |
| 99 | movl r8=0xe000000000000000 | |
| 100 | ;; | |
| 101 | .loop: fc r8 | |
| 102 | add r8=32,r8 | |
| 103 | br.cloop.sptk.few .loop | |
| 104 | sync.i | |
| 105 | ;; | |
| 106 | srlz.i | |
| 107 | ;; | |
| 108 | mov ar.lc=r9 | |
| 109 | mov r8=r0 | |
| 110 | ;; | |
| dc90e95f | 111 | 1: cmp.eq p6,p7=PAL_PERF_MON_INFO,r28 |
| 1da177e4 LT |
112 | (p7) br.cond.sptk.few 1f |
| 113 | mov r8=0 /* status = 0 */ | |
| 114 | movl r9 =0x08122f04 /* generic=4 width=47 retired=8 cycles=18 */ | |
| 115 | mov r10=0 /* reserved */ | |
| 116 | mov r11=0 /* reserved */ | |
| 117 | mov r16=0xffff /* implemented PMC */ | |
| 118 | mov r17=0x3ffff /* implemented PMD */ | |
| 119 | add r18=8,r29 /* second index */ | |
| 120 | ;; | |
| 121 | st8 [r29]=r16,16 /* store implemented PMC */ | |
| 122 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 123 | ;; | |
| 124 | st8 [r29]=r0,16 /* clear remaining bits */ | |
| 125 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 126 | ;; | |
| 127 | st8 [r29]=r17,16 /* store implemented PMD */ | |
| 128 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 129 | mov r16=0xf0 /* cycles count capable PMC */ | |
| 130 | ;; | |
| 131 | st8 [r29]=r0,16 /* clear remaining bits */ | |
| 132 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 133 | mov r17=0xf0 /* retired bundles capable PMC */ | |
| 134 | ;; | |
| 135 | st8 [r29]=r16,16 /* store cycles capable */ | |
| 136 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 137 | ;; | |
| 138 | st8 [r29]=r0,16 /* clear remaining bits */ | |
| 139 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 140 | ;; | |
| 141 | st8 [r29]=r17,16 /* store retired bundle capable */ | |
| 142 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 143 | ;; | |
| 144 | st8 [r29]=r0,16 /* clear remaining bits */ | |
| 145 | st8 [r18]=r0,16 /* clear remaining bits */ | |
| 146 | ;; | |
| dc90e95f PC |
147 | 1: cmp.eq p6,p7=PAL_VM_SUMMARY,r28 |
| 148 | (p7) br.cond.sptk.few 1f | |
| 149 | mov r8=0 /* status = 0 */ | |
| 150 | movl r9=0x2044040020F1865 /* num_tc_levels=2, num_unique_tcs=4 */ | |
| 151 | /* max_itr_entry=64, max_dtr_entry=64 */ | |
| 152 | /* hash_tag_id=2, max_pkr=15 */ | |
| 153 | /* key_size=24, phys_add_size=50, vw=1 */ | |
| 154 | movl r10=0x183C /* rid_size=24, impl_va_msb=60 */ | |
| 155 | ;; | |
| 156 | 1: cmp.eq p6,p7=PAL_MEM_ATTRIB,r28 | |
| 157 | (p7) br.cond.sptk.few 1f | |
| 158 | mov r8=0 /* status = 0 */ | |
| 159 | mov r9=0x80|0x01 /* NatPage|WB */ | |
| 160 | ;; | |
| 1da177e4 LT |
161 | 1: br.cond.sptk.few rp |
| 162 | stacked: | |
| 163 | br.ret.sptk.few rp | |
| 164 | END(pal_emulator_static) |