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- /*
- * Copyright (C) 1998-2003 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- */
- #include <asm/asmmacro.h>
- #include <asm/pal.h>
- .bss
- .align 16
- stack_mem:
- .skip 16834
- .text
- /* This needs to be defined because lib/string.c:strlcat() calls it in case of error... */
- GLOBAL_ENTRY(printk)
- break 0
- END(printk)
- GLOBAL_ENTRY(_start)
- .prologue
- .save rp, r0
- .body
- movl gp = __gp
- movl sp = stack_mem+16384-16
- bsw.1
- br.call.sptk.many rp=start_bootloader
- 0: nop 0 /* dummy nop to make unwinding work */
- END(_start)
- /*
- * Set a break point on this function so that symbols are available to set breakpoints in
- * the kernel being debugged.
- */
- GLOBAL_ENTRY(debug_break)
- br.ret.sptk.many b0
- END(debug_break)
- GLOBAL_ENTRY(ssc)
- .regstk 5,0,0,0
- mov r15=in4
- break 0x80001
- br.ret.sptk.many b0
- END(ssc)
- GLOBAL_ENTRY(jmp_to_kernel)
- .regstk 2,0,0,0
- mov r28=in0
- mov b7=in1
- br.sptk.few b7
- END(jmp_to_kernel)
- /*
- * r28 contains the index of the PAL function
- * r29--31 the args
- * Return values in ret0--3 (r8--11)
- */
- GLOBAL_ENTRY(pal_emulator_static)
- mov r8=-1
- mov r9=256
- ;;
- cmp.gtu p6,p7=r9,r28 /* r28 <= 255? */
- (p6) br.cond.sptk.few static
- ;;
- mov r9=512
- ;;
- cmp.gtu p6,p7=r9,r28
- (p6) br.cond.sptk.few stacked
- ;;
- static: cmp.eq p6,p7=PAL_PTCE_INFO,r28
- (p7) br.cond.sptk.few 1f
- ;;
- mov r8=0 /* status = 0 */
- movl r9=0x100000000 /* tc.base */
- movl r10=0x0000000200000003 /* count[0], count[1] */
- movl r11=0x1000000000002000 /* stride[0], stride[1] */
- br.cond.sptk.few rp
- 1: cmp.eq p6,p7=PAL_FREQ_RATIOS,r28
- (p7) br.cond.sptk.few 1f
- mov r8=0 /* status = 0 */
- movl r9 =0x100000064 /* proc_ratio (1/100) */
- movl r10=0x100000100 /* bus_ratio<<32 (1/256) */
- movl r11=0x100000064 /* itc_ratio<<32 (1/100) */
- ;;
- 1: cmp.eq p6,p7=PAL_RSE_INFO,r28
- (p7) br.cond.sptk.few 1f
- mov r8=0 /* status = 0 */
- mov r9=96 /* num phys stacked */
- mov r10=0 /* hints */
- mov r11=0
- br.cond.sptk.few rp
- 1: cmp.eq p6,p7=PAL_CACHE_FLUSH,r28 /* PAL_CACHE_FLUSH */
- (p7) br.cond.sptk.few 1f
- mov r9=ar.lc
- movl r8=524288 /* flush 512k million cache lines (16MB) */
- ;;
- mov ar.lc=r8
- movl r8=0xe000000000000000
- ;;
- .loop: fc r8
- add r8=32,r8
- br.cloop.sptk.few .loop
- sync.i
- ;;
- srlz.i
- ;;
- mov ar.lc=r9
- mov r8=r0
- ;;
- 1: cmp.eq p6,p7=PAL_PERF_MON_INFO,r28
- (p7) br.cond.sptk.few 1f
- mov r8=0 /* status = 0 */
- movl r9 =0x08122f04 /* generic=4 width=47 retired=8 cycles=18 */
- mov r10=0 /* reserved */
- mov r11=0 /* reserved */
- mov r16=0xffff /* implemented PMC */
- mov r17=0x3ffff /* implemented PMD */
- add r18=8,r29 /* second index */
- ;;
- st8 [r29]=r16,16 /* store implemented PMC */
- st8 [r18]=r0,16 /* clear remaining bits */
- ;;
- st8 [r29]=r0,16 /* clear remaining bits */
- st8 [r18]=r0,16 /* clear remaining bits */
- ;;
- st8 [r29]=r17,16 /* store implemented PMD */
- st8 [r18]=r0,16 /* clear remaining bits */
- mov r16=0xf0 /* cycles count capable PMC */
- ;;
- st8 [r29]=r0,16 /* clear remaining bits */
- st8 [r18]=r0,16 /* clear remaining bits */
- mov r17=0xf0 /* retired bundles capable PMC */
- ;;
- st8 [r29]=r16,16 /* store cycles capable */
- st8 [r18]=r0,16 /* clear remaining bits */
- ;;
- st8 [r29]=r0,16 /* clear remaining bits */
- st8 [r18]=r0,16 /* clear remaining bits */
- ;;
- st8 [r29]=r17,16 /* store retired bundle capable */
- st8 [r18]=r0,16 /* clear remaining bits */
- ;;
- st8 [r29]=r0,16 /* clear remaining bits */
- st8 [r18]=r0,16 /* clear remaining bits */
- ;;
- 1: cmp.eq p6,p7=PAL_VM_SUMMARY,r28
- (p7) br.cond.sptk.few 1f
- mov r8=0 /* status = 0 */
- movl r9=0x2044040020F1865 /* num_tc_levels=2, num_unique_tcs=4 */
- /* max_itr_entry=64, max_dtr_entry=64 */
- /* hash_tag_id=2, max_pkr=15 */
- /* key_size=24, phys_add_size=50, vw=1 */
- movl r10=0x183C /* rid_size=24, impl_va_msb=60 */
- ;;
- 1: cmp.eq p6,p7=PAL_MEM_ATTRIB,r28
- (p7) br.cond.sptk.few 1f
- mov r8=0 /* status = 0 */
- mov r9=0x80|0x01 /* NatPage|WB */
- ;;
- 1: br.cond.sptk.few rp
- stacked:
- br.ret.sptk.few rp
- END(pal_emulator_static)
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