diff options
Diffstat (limited to 'qemu/roms/openbios/arch/sparc32/vectors.S')
-rw-r--r-- | qemu/roms/openbios/arch/sparc32/vectors.S | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/qemu/roms/openbios/arch/sparc32/vectors.S b/qemu/roms/openbios/arch/sparc32/vectors.S deleted file mode 100644 index e812cecb9..000000000 --- a/qemu/roms/openbios/arch/sparc32/vectors.S +++ /dev/null @@ -1,254 +0,0 @@ -/* - * <vectors.S> - * - * Sparc V9 Trap Table(s) with SpitFire/Cheetah extensions. - * - * Copyright (C) 1996, 2001 David S. Miller (davem@caip.rutgers.edu) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301, USA. - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License V2 - * as published by the Free Software Foundation - */ - -#define __ASSEMBLY -#include "psr.h" -#include "asm/asi.h" -#define SER_ADDR5 0x71100004 -#define SER_ADDR10 0xf1100004 - - .section ".text.vectors", "ax" - .align 4 /* Should be 16384, but alignment is handled by the ldscript */ -/* Sparc32 trap table */ - .globl trap_table, t_zero, t_wovf, t_wunf, __divide_error -trap_table: - -#define WINDOW_SPILL \ - rd %psr, %l0; rd %wim, %l3; b spill_window_entry; nop; - -#define WINDOW_FILL \ - rd %psr, %l0; rd %wim, %l3; b fill_window_entry; nop; - -#define TRAP_DFAULT(lvl) \ - rd %psr, %l0; rd %wim, %l3; b handle_dfault; mov lvl, %l7; - -#define BTRAP(lvl) ba bug; mov lvl, %g1; nop; nop; -#define BTRAPS(x) BTRAP(x) BTRAP(x+1) BTRAP(x+2) BTRAP(x+3) BTRAP(x+4) BTRAP(x+5) BTRAP(x+6) BTRAP(x+7) -#define TRAP_ENTRY_INTERRUPT(int_level) \ - sethi %hi(irq_entry ## int_level), %l7; \ - or %l7, %lo(irq_entry ## int_level), %l7; \ - jmp %l7; \ - nop - -t_zero: b entry; nop; nop; nop; - BTRAP(0x1) BTRAP(0x2) BTRAP(0x3) BTRAP(0x4) -t_wovf: WINDOW_SPILL /* Window Overflow */ -t_wunf: WINDOW_FILL /* Window Underflow */ - BTRAP(0x7) - BTRAP(0x8) - TRAP_DFAULT(0x9) - BTRAP(0xa) BTRAP(0xb) BTRAP(0xc) BTRAP(0xd) BTRAP(0xe) BTRAP(0xf) -#if 0 - BAD_TRAP(0x10) -t_irq1: TRAP_ENTRY_INTERRUPT(1) /* IRQ Software/SBUS Level 1 */ -t_irq2: TRAP_ENTRY_INTERRUPT(2) /* IRQ SBUS Level 2 */ -t_irq3: TRAP_ENTRY_INTERRUPT(3) /* IRQ SCSI/DMA/SBUS Level 3 */ -t_irq4: TRAP_ENTRY_INTERRUPT(4) /* IRQ Software Level 4 */ -t_irq5: TRAP_ENTRY_INTERRUPT(5) /* IRQ SBUS/Ethernet Level 5 */ -t_irq6: TRAP_ENTRY_INTERRUPT(6) /* IRQ Software Level 6 */ -t_irq7: TRAP_ENTRY_INTERRUPT(7) /* IRQ Video/SBUS Level 5 */ -t_irq8: TRAP_ENTRY_INTERRUPT(8) /* IRQ SBUS Level 6 */ -t_irq9: TRAP_ENTRY_INTERRUPT(9) /* IRQ SBUS Level 7 */ -t_irq10: TRAP_ENTRY_INTERRUPT(10) /* IRQ Timer #1 (one we use) */ -t_irq11: TRAP_ENTRY_INTERRUPT(11) /* IRQ Floppy Intr. */ -t_irq12: TRAP_ENTRY_INTERRUPT(12) /* IRQ Zilog serial chip */ -t_irq13: TRAP_ENTRY_INTERRUPT(13) /* IRQ Audio Intr. */ -t_irq14: TRAP_ENTRY_INTERRUPT(14) /* IRQ Timer #2 */ -t_nmi: BAD_TRAP(0x1f) /* Level 15 (NMI) */ -#else - BTRAPS(0x10) - BTRAP(0x18) BTRAP(0x19) -t_irq10: TRAP_ENTRY_INTERRUPT(10) /* IRQ Timer #1 (one we use) */ - BTRAP(0x1b) BTRAP(0x1c) BTRAP(0x1d) -t_irq14: TRAP_ENTRY_INTERRUPT(14) /* IRQ Timer #2 */ - BTRAP(0x1f) -#endif - BTRAPS(0x20) - BTRAP(0x28) - TRAP_DFAULT(0x29) - BTRAP(0x2a) BTRAP(0x2b) BTRAP(0x2c) BTRAP(0x2d) BTRAP(0x2e) BTRAP(0x2f) - BTRAPS(0x30) BTRAPS(0x38) - BTRAPS(0x40) BTRAPS(0x48) - BTRAPS(0x50) BTRAPS(0x58) - BTRAPS(0x60) BTRAPS(0x68) - BTRAPS(0x70) BTRAPS(0x78) - BTRAPS(0x80) BTRAPS(0x88) - BTRAPS(0x90) BTRAPS(0x98) - BTRAPS(0xa0) BTRAPS(0xa8) - BTRAPS(0xb0) BTRAPS(0xb8) - BTRAPS(0xc0) BTRAPS(0xc8) - BTRAPS(0xd0) BTRAPS(0xd8) - BTRAPS(0xe0) BTRAPS(0xe8) - BTRAPS(0xf0) BTRAPS(0xf8) - - .section ".text", "ax" - .align 4 -__divide_error: -bug: - /* Dump the exception and its context */ - ! Set up CPU state - rd %psr, %g2 - andn %g2, PSR_ET, %g2 - wr %g2, %psr - ! Disable mmu, re-enable boot mode - set _start, %g3 - set dump_exception, %g2 - sub %g2, %g3, %g3 - set 3 << 13, %g2 - jmp %g3 - sta %g2, [%g0] ASI_M_MMUREGS - -outstr: - /* void outstr (unsigned long port5, unsigned long port10, - * const unsigned char *str); - * Writes a string on an IO port. - */ -1: lduba [%o2] ASI_M_KERNELTXT, %o3 - cmp %o3, 0 - be 2f - nop - stba %o3, [%o0] ASI_M_BYPASS - stba %o3, [%o1] ASI_M_CTL - b 1b - inc %o2 -2: retl - nop - -outhex: - /* void outhex (unsigned long port5, unsigned long port10, - * uint32_t value); - * Dumps a 32 bits hex number on serial port - */ - mov %o2, %o4 - set 28, %o3 - srl %o4, %o3, %o2 -1: and %o2, 0xf, %o2 - cmp %o2, 9 - bgt 2f - nop - b 3f - add %o2, '0', %o2 -2: add %o2, 'a' - 10, %o2 -3: stba %o2, [%o0] ASI_M_BYPASS - stba %o2, [%o1] ASI_M_CTL - subcc %o3, 4, %o3 - bge 1b - srl %o4, %o3, %o2 - retl - nop - - /* void dump_exception (); - * - * Dump a message when catching an exception - */ -dump_exception: - set SER_ADDR5 + 2, %o0 - set SER_ADDR10 + 2, %o1 - set (_BUG_message_0), %o2 - call outstr - nop - - call outhex - mov %g1, %o2 - - set (_BUG_message_1), %o2 - call outstr - nop - - call outhex - mov %l1, %o2 - - set (_BUG_message_2), %o2 - call outstr - nop - - call outhex - mov %l2, %o2 - - set (_BUG_message_3), %o2 - call outstr - nop -_forever: - /* Loop forever */ - b _forever ; - nop - -irq_entry10: - sethi %hi(counter_regs), %l7 - ld [%l7 + %lo(counter_regs)], %l7 - sethi 0x10000, %l6 - ld [%l7 + %l6], %g0 - jmp %l1 - rett %l2 - -irq_entry14: - sethi %hi(counter_regs), %l7 - ld [%l7 + %lo(counter_regs)], %l7 - ld [%l7], %g0 - sethi %hi(obp_ticks), %l7 - ld [%l7 + %lo(obp_ticks)], %l7 - ld [%l7], %l6 - add %l6, 10, %l6 - st %l6, [%l7] - jmp %l1 - rett %l2 - -/* Register window handlers */ -#include "wof.S" -#include "wuf.S" - -/* Data fault handler */ - .data - .align 4 - .global ignore_dfault - -ignore_dfault: - .word 0 - - .text - .align 4 - -handle_dfault: - /* If ignore_dfault is 0, fall through to normal exception handler */ - sethi %hi(ignore_dfault), %l4 - ld [%l4 + %lo(ignore_dfault)], %l4 - tst %l4 - bz,a bug - mov %l7, %g1 - - /* Otherwise skip the faulting instruction and return */ - jmp %l2 - rett %l2 + 4 - - - .section .rodata -_BUG_message_0: - .string "Unhandled Exception 0x" -_BUG_message_1: - .string "\r\nPC = 0x" -_BUG_message_2: - .string " NPC = 0x" -_BUG_message_3: - .string "\r\nStopping execution\r\n" |