diff options
Diffstat (limited to 'system/alpha/console/paljtokern.s')
| -rw-r--r-- | system/alpha/console/paljtokern.s | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/system/alpha/console/paljtokern.s b/system/alpha/console/paljtokern.s deleted file mode 100644 index 66b593461..000000000 --- a/system/alpha/console/paljtokern.s +++ /dev/null @@ -1,156 +0,0 @@ -#include "dc21164FromGasSources.h" // DECchip 21164 specific definitions -#include "ev5_defs.h" -#include "fromHudsonOsf.h" // OSF/1 specific definitions -#include "fromHudsonMacros.h" // Global macro definitions -#include "ev5_impure.h" // Scratch & logout area data structures -#include "platform.h" // Platform specific definitions - - .global palJToKern - .text 3 -palJToKern: -/* Jump to kernel -args: - Kernel address - a0 - PCBB - a1 - First free PFN - a3? - - Enable kseg addressing in ICSR - Enable kseg addressing in MCSR - Set VTBR -- Set to 1GB as per SRM, or maybe 8GB?? - Set PCBB -- pass pointer in arg - Set PTBR -- get it out of PCB - Set KSP -- get it out of PCB - - Jump to kernel address - - Kernel args- - s0 first free PFN - s1 ptbr - s2 argc 0 - s3 argv NULL - s5 osf_param (sysconfigtab) NULL - */ - - ALIGN_BRANCH - - ldq_p a0, 0(zero) - ldq_p a1, 8(zero) - ldq_p a3, 16(zero) - -#ifdef undef - LDLI(t0,0x200000000) // 8GB, like the Mikasa - LDLI(t0,0x40000000) // 1GB, like the SRM - STALL // don't dual issue the load with mtpr -pb -#endif - /* Point the Vptbr at 8GB */ - lda t0, 0x1(zero) - sll t0, 33, t0 - - mtpr t0, mVptBr // Load Mbox copy - mtpr t0, iVptBr // Load Ibox copy - STALL // don't dual issue the load with mtpr -pb - - /* Turn on superpage mapping in the mbox and icsr */ - lda t0, (2<<MCSR_V_SP)(zero) // Get a '10' (binary) in MCSR<SP> - STALL // don't dual issue the load with mtpr -pb - mtpr t0, mcsr // Set the super page mode enable bit - STALL // don't dual issue the load with mtpr -pb - - lda t0, 0(zero) - mtpr t0, dtbAsn - mtpr t0, itbAsn - - LDLI (t1,0x20000000) - STALL // don't dual issue the load with mtpr -pb - mfpr t0, icsr // Enable superpage mapping - STALL // don't dual issue the load with mtpr -pb - bis t0, t1, t0 - mtpr t0, icsr - - STALL // Required stall to update chip ... - STALL - STALL - STALL - STALL - - ldq_p s0, PCB_Q_PTBR(a1) - sll s0, VA_S_OFF, s0 // Shift PTBR into position - STALL // don't dual issue the load with mtpr -pb - mtpr s0, ptPtbr // PHYSICAL MBOX INST -> MT PT20 IN 0,1 - STALL // don't dual issue the load with mtpr -pb - ldq_p sp, PCB_Q_KSP(a1) - - mtpr a0, excAddr // Load the dispatch address. - STALL // don't dual issue the load with mtpr -pb - bis a3, zero, a0 // first free PFN - ldq_p a1, PCB_Q_PTBR(a1) // ptbr - ldq_p a2, 24(zero) // argc - ldq_p a3, 32(zero) // argv - ldq_p a4, 40(zero) // environ - lda a5, 0(zero) // osf_param - STALL // don't dual issue the load with mtpr -pb - mtpr zero, dtbIa // Flush all D-stream TB entries - mtpr zero, itbIa // Flush all I-stream TB entries - br zero, 2f - - ALIGN_BLOCK - -2: NOP - mtpr zero, icFlush // Flush the icache. - NOP - NOP - - NOP // Required NOPs ... 1-10 - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - - NOP // Required NOPs ... 11-20 - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - - NOP // Required NOPs ... 21-30 - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - - NOP // Required NOPs ... 31-40 - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - NOP - - - - NOP // Required NOPs ... 41-44 - NOP - NOP - NOP - - hw_rei_stall // Dispatch to kernel - - |