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ad26a9b752
git-svn-id: svn://coreboot.org/openbios/openbios-devel@58 f158a5a8-5612-0410-a976-696ce0be7e32
323 lines
9.0 KiB
ArmAsm
323 lines
9.0 KiB
ArmAsm
/*
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* <vectors.S>
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*
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* Sparc V9 Trap Table(s) with SpitFire/Cheetah extensions.
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*
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* Copyright (C) 1996, 2001 David S. Miller (davem@caip.rutgers.edu)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License V2
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* as published by the Free Software Foundation
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*/
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#define __ASSEMBLY__
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#include "pstate.h"
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#include "asi.h"
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#include "ttable.h"
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#define ASI_BP ASI_PHYS_BYPASS_EC_E
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#define SER_ADDR 0x1fe020003f8
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.section ".text.vectors", "ax"
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.align 16384
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/* Sparc64 trap table */
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.globl trap_table, __divide_error
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.register %g2, #scratch
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.register %g3, #scratch
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.register %g6, #scratch
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.register %g7, #scratch
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trap_table:
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#undef TRAP_IRQ
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#define TRAP_IRQ(routine, level) \
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ba routine; nop; nop; nop; nop; nop; nop; nop;
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#undef BTRAP
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#define BTRAP(lvl) \
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ba bug; mov lvl, %g1; nop; nop; nop; nop; nop; nop;
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#undef BTRAPTL1
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#define BTRAPTL1(lvl) BTRAP(lvl)
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#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)
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#define STACK_BIAS 2047
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.globl sparc64_ttable_tl0, sparc64_ttable_tl1
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sparc64_ttable_tl0:
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ba entry; nop; nop; nop; nop; nop; nop; nop;
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BTRAP(0x01) BTRAP(0x02) BTRAP(0x03) BTRAP(0x04) BTRAP(0x05) BTRAP(0x06) BTRAP(0x07)
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BTRAPS(0x08)
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BTRAPS(0x10) BTRAPS(0x18)
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BTRAP(0x20) BTRAP(0x21) BTRAP(0x22) BTRAP(0x23)
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CLEAN_WINDOW ! 24-27
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BTRAPS(0x28)
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BTRAPS(0x30) BTRAPS(0x38)
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#if 0
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BTRAP(0x40) BTRAP(0x41) BTRAP(0x42) BTRAP(0x43)
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tl0_irq4: TRAP_IRQ(handler_irq, 4)
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tl0_irq5: TRAP_IRQ(handler_irq, 5) TRAP_IRQ(handler_irq, 6)
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tl0_irq7: TRAP_IRQ(handler_irq, 7) TRAP_IRQ(handler_irq, 8)
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tl0_irq9: TRAP_IRQ(handler_irq, 9) TRAP_IRQ(handler_irq, 10)
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tl0_irq11: TRAP_IRQ(handler_irq, 11) TRAP_IRQ(handler_irq, 12)
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tl0_irq13: TRAP_IRQ(handler_irq, 13)
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tl0_irq14: TRAP_IRQ(handler_irq, 14)
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tl0_irq15: TRAP_IRQ(handler_irq, 15)
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#else
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BTRAPS(0x40) BTRAPS(0x48)
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#endif
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BTRAPS(0x50) BTRAPS(0x58)
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BTRAPS(0x60) BTRAPS(0x68)
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BTRAPS(0x70) BTRAPS(0x78)
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tl0_s0n: SPILL_0_NORMAL
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tl0_s1n: SPILL_1_NORMAL
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tl0_s2n: SPILL_2_NORMAL
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tl0_s3n: SPILL_3_NORMAL
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tl0_s4n: SPILL_4_NORMAL
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tl0_s5n: SPILL_5_NORMAL
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tl0_s6n: SPILL_6_NORMAL
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tl0_s7n: SPILL_7_NORMAL
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tl0_s0o: SPILL_0_OTHER
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tl0_s1o: SPILL_1_OTHER
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tl0_s2o: SPILL_2_OTHER
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tl0_s3o: SPILL_3_OTHER
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tl0_s4o: SPILL_4_OTHER
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tl0_s5o: SPILL_5_OTHER
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tl0_s6o: SPILL_6_OTHER
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tl0_s7o: SPILL_7_OTHER
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tl0_f0n: FILL_0_NORMAL
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tl0_f1n: FILL_1_NORMAL
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tl0_f2n: FILL_2_NORMAL
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tl0_f3n: FILL_3_NORMAL
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tl0_f4n: FILL_4_NORMAL
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tl0_f5n: FILL_5_NORMAL
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tl0_f6n: FILL_6_NORMAL
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tl0_f7n: FILL_7_NORMAL
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tl0_f0o: FILL_0_OTHER
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tl0_f1o: FILL_1_OTHER
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tl0_f2o: FILL_2_OTHER
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tl0_f3o: FILL_3_OTHER
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tl0_f4o: FILL_4_OTHER
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tl0_f5o: FILL_5_OTHER
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tl0_f6o: FILL_6_OTHER
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tl0_f7o: FILL_7_OTHER
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tl0_resv100: BTRAPS(0x100) BTRAPS(0x108)
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tl0_resv110: BTRAPS(0x110) BTRAPS(0x118)
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tl0_resv120: BTRAPS(0x120) BTRAPS(0x128)
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tl0_resv130: BTRAPS(0x130) BTRAPS(0x138)
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tl0_resv140: BTRAPS(0x140) BTRAPS(0x148)
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tl0_resv150: BTRAPS(0x150) BTRAPS(0x158)
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tl0_resv160: BTRAPS(0x160) BTRAPS(0x168)
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tl0_resv170: BTRAPS(0x170) BTRAPS(0x178)
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tl0_resv180: BTRAPS(0x180) BTRAPS(0x188)
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tl0_resv190: BTRAPS(0x190) BTRAPS(0x198)
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tl0_resv1a0: BTRAPS(0x1a0) BTRAPS(0x1a8)
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tl0_resv1b0: BTRAPS(0x1b0) BTRAPS(0x1b8)
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tl0_resv1c0: BTRAPS(0x1c0) BTRAPS(0x1c8)
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tl0_resv1d0: BTRAPS(0x1d0) BTRAPS(0x1d8)
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tl0_resv1e0: BTRAPS(0x1e0) BTRAPS(0x1e8)
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tl0_resv1f0: BTRAPS(0x1f0) BTRAPS(0x1f8)
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#undef BTRAPS
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#define BTRAPS(x) BTRAPTL1(x) BTRAPTL1(x+1) BTRAPTL1(x+2) BTRAPTL1(x+3) BTRAPTL1(x+4) BTRAPTL1(x+5) BTRAPTL1(x+6) BTRAPTL1(x+7)
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sparc64_ttable_tl1:
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BTRAPS(0x00) BTRAPS(0x08)
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BTRAPS(0x10) BTRAPS(0x18)
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BTRAPTL1(0x20) BTRAPTL1(0x21) BTRAPTL1(0x22) BTRAPTL1(0x23)
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CLEAN_WINDOW ! 24-27
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BTRAPS(0x28)
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BTRAPS(0x30) BTRAPS(0x38)
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#if 0
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BTRAPTL1(0x40) BTRAPTL1(0x41) BTRAPTL1(0x42) BTRAPTL1(0x43)
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tl1_irq4: TRAP_IRQ(handler_irq, 4)
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tl1_irq5: TRAP_IRQ(handler_irq, 5) TRAP_IRQ(handler_irq, 6)
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tl1_irq7: TRAP_IRQ(handler_irq, 7) TRAP_IRQ(handler_irq, 8)
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tl1_irq9: TRAP_IRQ(handler_irq, 9) TRAP_IRQ(handler_irq, 10)
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tl1_irq11: TRAP_IRQ(handler_irq, 11) TRAP_IRQ(handler_irq, 12)
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tl1_irq13: TRAP_IRQ(handler_irq, 13)
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tl1_irq14: TRAP_IRQ(handler_irq, 14)
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tl1_irq15: TRAP_IRQ(handler_irq, 15)
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#else
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BTRAPS(0x40) BTRAPS(0x48)
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#endif
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BTRAPS(0x50) BTRAPS(0x58)
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BTRAPS(0x60) BTRAPS(0x68)
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BTRAPS(0x70) BTRAPS(0x78)
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tl1_s0n: SPILL_0_NORMAL
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tl1_s1n: SPILL_1_NORMAL
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tl1_s2n: SPILL_2_NORMAL
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tl1_s3n: SPILL_3_NORMAL
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tl1_s4n: SPILL_4_NORMAL
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tl1_s5n: SPILL_5_NORMAL
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tl1_s6n: SPILL_6_NORMAL
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tl1_s7n: SPILL_7_NORMAL
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tl1_s0o: SPILL_0_OTHER
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tl1_s1o: SPILL_1_OTHER
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tl1_s2o: SPILL_2_OTHER
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tl1_s3o: SPILL_3_OTHER
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tl1_s4o: SPILL_4_OTHER
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tl1_s5o: SPILL_5_OTHER
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tl1_s6o: SPILL_6_OTHER
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tl1_s7o: SPILL_7_OTHER
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tl1_f0n: FILL_0_NORMAL
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tl1_f1n: FILL_1_NORMAL
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tl1_f2n: FILL_2_NORMAL
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tl1_f3n: FILL_3_NORMAL
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tl1_f4n: FILL_4_NORMAL
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tl1_f5n: FILL_5_NORMAL
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tl1_f6n: FILL_6_NORMAL
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tl1_f7n: FILL_7_NORMAL
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tl1_f0o: FILL_0_OTHER
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tl1_f1o: FILL_1_OTHER
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tl1_f2o: FILL_2_OTHER
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tl1_f3o: FILL_3_OTHER
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tl1_f4o: FILL_4_OTHER
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tl1_f5o: FILL_5_OTHER
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tl1_f6o: FILL_6_OTHER
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tl1_f7o: FILL_7_OTHER
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tl1_resv100: BTRAPS(0x100) BTRAPS(0x108)
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tl1_resv110: BTRAPS(0x110) BTRAPS(0x118)
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tl1_resv120: BTRAPS(0x120) BTRAPS(0x128)
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tl1_resv130: BTRAPS(0x130) BTRAPS(0x138)
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tl1_resv140: BTRAPS(0x140) BTRAPS(0x148)
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tl1_resv150: BTRAPS(0x150) BTRAPS(0x158)
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tl1_resv160: BTRAPS(0x160) BTRAPS(0x168)
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tl1_resv170: BTRAPS(0x170) BTRAPS(0x178)
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tl1_resv180: BTRAPS(0x180) BTRAPS(0x188)
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tl1_resv190: BTRAPS(0x190) BTRAPS(0x198)
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tl1_resv1a0: BTRAPS(0x1a0) BTRAPS(0x1a8)
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tl1_resv1b0: BTRAPS(0x1b0) BTRAPS(0x1b8)
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tl1_resv1c0: BTRAPS(0x1c0) BTRAPS(0x1c8)
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tl1_resv1d0: BTRAPS(0x1d0) BTRAPS(0x1d8)
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tl1_resv1e0: BTRAPS(0x1e0) BTRAPS(0x1e8)
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tl1_resv1f0: BTRAPS(0x1f0) BTRAPS(0x1f8)
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spill_fixup:
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spill_fixup_dax:
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spill_fixup_mna:
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fill_fixup:
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fill_fixup_dax:
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fill_fixup_mna:
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__divide_error:
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bug:
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/* Dump the exception and its context */
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! Set up CPU state
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wrpr %g0, PSTATE_PRIV, %pstate
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wr %g0, 0, %fprs
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wrpr %g0, 0x0, %tl
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! Disable I/D MMUs and caches
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stxa %g0, [%g0] ASI_LSU_CONTROL
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! Extract NWINDOWS from %ver
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rdpr %ver, %g2
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and %g2, 0xf, %g2
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wrpr %g2, 0, %cleanwin
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wrpr %g2, 0, %cansave
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wrpr %g0, 0, %canrestore
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wrpr %g0, 0, %otherwin
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wrpr %g0, 0, %wstate
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call dump_exception
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nop
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_forever:
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/* Loop forever */
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b _forever ;
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nop
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outstr:
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/* void outstr (unsigned long port, const unsigned char *str);
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* Writes a string on an IO port.
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*/
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1: ldub [%o1], %o3
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cmp %o3, 0
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be 2f
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nop
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stba %o3, [%o0] ASI_BP
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b 1b
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inc %o1
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2: retl
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nop
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outdigit:
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/* void outdigit (unsigned long port, uint8_t digit);
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* Dumps a single digit on serial port.
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*/
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add %o1, '0', %o1
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retl
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stba %o1, [%o0] ASI_BP
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outhex:
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/* void outhex (unsigned long port, uint64_t value);
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* Dumps a 64 bits hex number on serial port
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*/
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mov %o1, %o2
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set 60, %o3
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srlx %o2, %o3, %o1
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1: and %o1, 0xf, %o1
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cmp %o1, 9
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bgt 2f
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nop
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b 3f
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add %o1, '0', %o1
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2: add %o1, 'a' - 10, %o1
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3: stba %o1, [%o0] ASI_BP
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subcc %o3, 4, %o3
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bge 1b
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srlx %o2, %o3, %o1
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retl
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nop
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/* void dump_exception ();
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*
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* Dump a message when catching an exception
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*/
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dump_exception:
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setx SER_ADDR, %o3, %o0
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setx (_BUG_message_0), %o3, %o1
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call outstr
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nop
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call outhex
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mov %g1, %o1
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setx (_BUG_message_1), %o3, %o1
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call outstr
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nop
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call outhex
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rdpr %tpc, %o1
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setx (_BUG_message_2), %o3, %o1
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call outstr
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nop
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call outhex
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rdpr %tnpc, %o1
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setx (_BUG_message_3), %o3, %o1
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call outstr
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nop
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retl
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nop
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//#include "winfixup.S"
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.section .rodata
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_BUG_message_0:
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.string "Unhandled Exception 0x"
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_BUG_message_1:
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.string "\nPC = 0x"
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_BUG_message_2:
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.string " NPC = 0x"
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_BUG_message_3:
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.string "\nStopping execution\n"
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