| /kernel/trunk/arch/sparc64/include/trap_table.h |
|---|
| 0,0 → 1,51 |
| /* |
| * Copyright (C) 2005 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef __sparc64_TRAP_TABLE_H__ |
| #define __sparc64_TRAP_TABLE_H__ |
| #ifndef __ASM__ |
| #include <arch/types.h> |
| #endif /* __ASM__ */ |
| #define TRAP_TABLE_ENTRY_COUNT 1024 |
| #define TRAP_TABLE_ENTRY_SIZE 32 |
| #define TRAP_TABLE_SIZE (TRAP_TABLE_ENTRY_COUNT*TRAP_TABLE_ENTRY_SIZE) |
| #ifndef __ASM__ |
| struct trap_table_entry { |
| __u8 octets[TRAP_TABLE_ENTRY_SIZE]; |
| } __attribute__ ((packed)); |
| typedef struct trap_table_entry trap_table_entry_t; |
| extern trap_table_entry_t trap_table[TRAP_TABLE_ENTRY_COUNT]; |
| extern trap_table_entry_t trap_table_kernel[TRAP_TABLE_ENTRY_COUNT]; |
| #endif /* __ASM__ */ |
| #endif |
| /kernel/trunk/arch/sparc64/include/asm.h |
|---|
| 85,6 → 85,29 |
| return v; |
| } |
| /** Read Trap Base Address register. |
| * |
| * @return Current value in TBA. |
| */ |
| static inline __u64 tba_read(void) |
| { |
| __u64 v; |
| __asm__ volatile ("rdpr %%tba, %0\n" : "=r" (v)); |
| return v; |
| } |
| /** Write Trap Base Address register. |
| * |
| * @param New value of TBA. |
| */ |
| static inline void tba_write(__u64 v) |
| { |
| __asm__ volatile ("wrpr %0, %1, %%tba\n" : : "r" (v), "i" (0)); |
| } |
| void cpu_halt(void); |
| void cpu_sleep(void); |
| void asm_delay_loop(__u32 t); |
| /kernel/trunk/arch/sparc64/Makefile.inc |
|---|
| 54,4 → 54,5 |
| arch/$(ARCH)/src/mm/frame.c \ |
| arch/$(ARCH)/src/mm/page.c \ |
| arch/$(ARCH)/src/sparc64.c \ |
| arch/$(ARCH)/src/start.S |
| arch/$(ARCH)/src/start.S \ |
| arch/$(ARCH)/src/trap_table.S |
| /kernel/trunk/arch/sparc64/src/sparc64.c |
|---|
| 27,6 → 27,10 |
| */ |
| #include <arch.h> |
| #include <print.h> |
| #include <arch/asm.h> |
| #include <memstr.h> |
| #include <arch/trap_table.h> |
| void arch_pre_mm_init(void) |
| { |
| 38,6 → 42,14 |
| void arch_pre_smp_init(void) |
| { |
| /* |
| * Copy OFW's trap table into kernel and point TBA there. |
| */ |
| memcpy((void *) trap_table, (void *) tba_read(), TRAP_TABLE_SIZE); |
| /* |
| * TBA cannot be changed until there are means of getting it into TLB. |
| * tba_write((__u64) trap_table); |
| */ |
| } |
| void arch_post_smp_init(void) |
| /kernel/trunk/arch/sparc64/src/context.S |
|---|
| 31,12 → 31,10 |
| /** |
| * Both context_save_arch() and context_restore_arch() are |
| * leaf-optimized procedures. Both of them touch %sp and |
| * %fp and thus break SCD 2.4 compliance. However, these |
| * functions are special enough to be allowed this |
| * kind of behavior. Moreover, this kind of optimization |
| * is very important and prevents any window spill/ |
| * fill/clean traps in these very core kernel functions. |
| * leaf-optimized procedures. This kind of optimization |
| * is very important and prevents any implicit window |
| * spill/fill/clean traps in these very core kernel |
| * functions. |
| */ |
| .text |
| /kernel/trunk/arch/sparc64/src/start.S |
|---|
| 51,10 → 51,9 |
| 1: |
| set ofw, %l0 |
| stx %o4, [%l0] |
| call ofw_init |
| nop |
| stx %o4, [%l0] |
| call main_bsp |
| nop |
| /kernel/trunk/arch/sparc64/src/trap_table.S |
|---|
| 0,0 → 1,100 |
| # |
| # Copyright (C) 2005 Jakub Jermar |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| /** |
| * This file contains two trap tables. First, trap_table, is the one |
| * to wich kernel copies OFW's own trap table and patches it with |
| * kernel-provided handlers from the second trap table, trap_table_kernel. |
| */ |
| .text |
| #include <arch/trap_table.h> |
| #define TABLE_SIZE TRAP_TABLE_SIZE |
| #define ENTRY_SIZE TRAP_TABLE_ENTRY_SIZE |
| /* |
| * Trap table for copy of OFW's own trap table. |
| */ |
| .align TABLE_SIZE |
| .global trap_table |
| trap_table: |
| .space TABLE_SIZE, 0 |
| /* |
| * Kernel-provided trap handlers. |
| */ |
| .global trap_table_kernel |
| trap_table_kernel: |
| /* |
| * Hardware interrupts for TL=0. |
| */ |
| .org trap_table_kernel + 0*ENTRY_SIZE |
| tl_0_hardware_traps: |
| /* |
| * Register window spill/fill/clean traps for TL=0. |
| */ |
| .org trap_table_kernel + 128*ENTRY_SIZE |
| tl_0_regwin_traps: |
| /* |
| * Software traps for TL=0. |
| */ |
| .org trap_table_kernel + 256*ENTRY_SIZE |
| tl_0_software_traps: |
| /* Reserved area. */ |
| .org trap_table_kernel + 384*ENTRY_SIZE |
| .space 128*ENTRY_SIZE, 0 |
| /* |
| * Hardware interrupts for TL>0. |
| */ |
| .org trap_table_kernel + 512*ENTRY_SIZE |
| tl_non_0_hardware_traps: |
| /* |
| * Register window spill/fill/clean traps for TL>0. |
| */ |
| .org trap_table_kernel + 640*ENTRY_SIZE |
| tl_non_0_regwin_traps: |
| /* |
| * Software traps for TL>0. |
| */ |
| .org trap_table_kernel + 768*ENTRY_SIZE |
| tl_non_0_software_traps: |
| /* Reserved area. */ |
| .org trap_table_kernel + 896*ENTRY_SIZE |
| .space 128*ENTRY_SIZE, 0 |