diff options
Diffstat (limited to 'src/kernel/shutdown.S')
| -rw-r--r-- | src/kernel/shutdown.S | 47 |
1 files changed, 25 insertions, 22 deletions
diff --git a/src/kernel/shutdown.S b/src/kernel/shutdown.S index bb7657318..74492f37d 100644 --- a/src/kernel/shutdown.S +++ b/src/kernel/shutdown.S @@ -1,25 +1,25 @@ -# IBM_PROLOG_BEGIN_TAG -# This is an automatically generated prolog. +# IBM_PROLOG_BEGIN_TAG +# This is an automatically generated prolog. # -# $Source: src/kernel/shutdown.S $ +# $Source: src/kernel/shutdown.S $ # -# IBM CONFIDENTIAL +# IBM CONFIDENTIAL # -# COPYRIGHT International Business Machines Corp. 2012 +# COPYRIGHT International Business Machines Corp. 2012,2013 # -# p1 +# p1 # -# Object Code Only (OCO) source materials -# Licensed Internal Code Source Materials -# IBM HostBoot Licensed Internal Code +# Object Code Only (OCO) source materials +# Licensed Internal Code Source Materials +# IBM HostBoot Licensed Internal Code # -# The source code for this program is not published or other- -# wise divested of its trade secrets, irrespective of what has -# been deposited with the U.S. Copyright Office. +# The source code for this program is not published or otherwise +# divested of its trade secrets, irrespective of what has been +# deposited with the U.S. Copyright Office. # -# Origin: 30 +# Origin: 30 # -# IBM_PROLOG_END_TAG +# IBM_PROLOG_END_TAG .include "kernel/ppcconsts.S" #define KERNEL_BARRIER(addr, count, temp) \ @@ -64,7 +64,8 @@ ;// @param[in] r3 - CPU count - Number of active CPUs. ;// @param[in] r4 - Payload Base ;// @param[in] r5 - Payload Entry - ;// @param[in] r6 - Last thread to enter payload. + ;// @param[in] r6 - Payload Data + ;// @param[in] r7 - Last thread to enter payload. ;// .global kernel_shutdown kernel_shutdown: @@ -72,16 +73,16 @@ kernel_shutdown: li r10, 1 rotldi r10, r10, 63 ;// Retrieve existing HRMOR. - mfspr r7, HRMOR + mfspr r0, HRMOR ;// Determine physical address of shutdown_barrier. lis r8, kernel_shutdown_barriers@h ori r8, r8, kernel_shutdown_barriers@l - or r8, r8, r7 ;// Apply HRMOR. + or r8, r8, r0 ;// Apply HRMOR. or r8, r8, r10 ;// Apply EA[0] = 1. ;// Determine physical address of EA[0]=1 mode instruction. lis r9, kernel_shutdown_ea0_1_mode@h ori r9, r9, kernel_shutdown_ea0_1_mode@l - or r9, r9, r7 ;// Apply HRMOR. + or r9, r9, r0 ;// Apply HRMOR. or r9, r9, r10 ;// Apply EA[0] = 1. ;// Jump to enter EA[0] = 1 mtlr r9 @@ -110,11 +111,11 @@ kernel_shutdown_ea0_1_mode: KERNEL_BARRIER(r8, r3, r11) ;// "Barrier" 4: - ;// Increment counter as leaving, except PIR == r6 waits. + ;// Increment counter as leaving, except PIR == r7 waits. addi r8, r8, 8 - ;// Check for PIR == r6. + ;// Check for PIR == r7. mfspr r10, PIR - cmp cr0, r10, r6 + cmp cr0, r10, r7 beq 3f ;// Increment thread count. 1: @@ -130,10 +131,12 @@ kernel_shutdown_ea0_1_mode: ;// Save MSR, move to HSRR1. mfmsr r10 mtspr HSRR1, r10 + ;// Move payload data to r3 + mr r3,r6 ;// Jump to entry point. Causes HSRR0 -> NIA, HSSR1 -> MSR. hrfid - ;// PIR == r6 waits here for all others to leave. + ;// PIR == r7 waits here for all others to leave. 3: subi r3, r3, 1 1: |
