Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
[IA64] Add PAL_VM_SUMMARY/PAL_MEM_ATTRIB to bootloader for SKI
This patch implements PAL_VM_SUMMARY (and PAL_MEM_ATTRIB for good
measure) and pretends that the simulated machine is a McKinley.
Some extra comments and clean-up by Tony Luck.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
authored by
Peter Chubb
and committed by
Tony Luck
dc90e95f
d8971fcb
+25
-6
arch/ia64/hp/sim/boot/boot_head.S
+25
-6
arch/ia64/hp/sim/boot/boot_head.S
···
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*/
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#include <asm/asmmacro.h>
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#include <asm/pal.h>
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.bss
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.align 16
···
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br.sptk.few b7
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END(jmp_to_kernel)
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-
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/*
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* r28 contains the index of the PAL function
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* r29--31 the args
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* Return values in ret0--3 (r8--11)
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*/
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GLOBAL_ENTRY(pal_emulator_static)
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mov r8=-1
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mov r9=256
···
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cmp.gtu p6,p7=r9,r28
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(p6) br.cond.sptk.few stacked
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;;
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static: cmp.eq p6,p7=6,r28 /* PAL_PTCE_INFO */
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static: cmp.eq p6,p7=PAL_PTCE_INFO,r28
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(p7) br.cond.sptk.few 1f
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;;
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mov r8=0 /* status = 0 */
···
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movl r10=0x0000000200000003 /* count[0], count[1] */
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movl r11=0x1000000000002000 /* stride[0], stride[1] */
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br.cond.sptk.few rp
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1: cmp.eq p6,p7=14,r28 /* PAL_FREQ_RATIOS */
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1: cmp.eq p6,p7=PAL_FREQ_RATIOS,r28
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(p7) br.cond.sptk.few 1f
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mov r8=0 /* status = 0 */
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movl r9 =0x100000064 /* proc_ratio (1/100) */
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movl r10=0x100000100 /* bus_ratio<<32 (1/256) */
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movl r11=0x100000064 /* itc_ratio<<32 (1/100) */
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;;
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1: cmp.eq p6,p7=19,r28 /* PAL_RSE_INFO */
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1: cmp.eq p6,p7=PAL_RSE_INFO,r28
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(p7) br.cond.sptk.few 1f
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mov r8=0 /* status = 0 */
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mov r9=96 /* num phys stacked */
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mov r10=0 /* hints */
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mov r11=0
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br.cond.sptk.few rp
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1: cmp.eq p6,p7=1,r28 /* PAL_CACHE_FLUSH */
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1: cmp.eq p6,p7=PAL_CACHE_FLUSH,r28 /* PAL_CACHE_FLUSH */
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(p7) br.cond.sptk.few 1f
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mov r9=ar.lc
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movl r8=524288 /* flush 512k million cache lines (16MB) */
···
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mov ar.lc=r9
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mov r8=r0
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;;
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-
1: cmp.eq p6,p7=15,r28 /* PAL_PERF_MON_INFO */
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1: cmp.eq p6,p7=PAL_PERF_MON_INFO,r28
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(p7) br.cond.sptk.few 1f
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mov r8=0 /* status = 0 */
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movl r9 =0x08122f04 /* generic=4 width=47 retired=8 cycles=18 */
···
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;;
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st8 [r29]=r0,16 /* clear remaining bits */
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st8 [r18]=r0,16 /* clear remaining bits */
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;;
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1: cmp.eq p6,p7=PAL_VM_SUMMARY,r28
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(p7) br.cond.sptk.few 1f
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mov r8=0 /* status = 0 */
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movl r9=0x2044040020F1865 /* num_tc_levels=2, num_unique_tcs=4 */
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/* max_itr_entry=64, max_dtr_entry=64 */
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/* hash_tag_id=2, max_pkr=15 */
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/* key_size=24, phys_add_size=50, vw=1 */
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movl r10=0x183C /* rid_size=24, impl_va_msb=60 */
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;;
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1: cmp.eq p6,p7=PAL_MEM_ATTRIB,r28
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(p7) br.cond.sptk.few 1f
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mov r8=0 /* status = 0 */
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mov r9=0x80|0x01 /* NatPage|WB */
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;;
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1: br.cond.sptk.few rp
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stacked: