diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc750/exceptions/raw_exception.c')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc750/exceptions/raw_exception.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc750/exceptions/raw_exception.c b/c/src/lib/libcpu/powerpc/mpc750/exceptions/raw_exception.c deleted file mode 100644 index 424385996d..0000000000 --- a/c/src/lib/libcpu/powerpc/mpc750/exceptions/raw_exception.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * cpu.c - This file contains implementation of C function to - * Instanciate 60x ppc primary exception entries. - * More detailled information can be found on motorola - * site and more precisely in the following book : - * - * MPC750 - * Risc Microporcessor User's Manual - * Mtorola REF : MPC750UM/AD 8/97 - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ -#include <rtems/score/targopts.h> -#include <rtems/score/ppc.h> -#include <rtems/system.h> -#include <rtems/score/cpu.h> -#include <libcpu/raw_exception.h> - -static rtems_raw_except_connect_data* raw_except_table; -static rtems_raw_except_connect_data default_raw_except_entry; -static rtems_raw_except_global_settings* local_settings; - -int mpc750_vector_is_valid(rtems_vector vector) -{ - switch(vector) { - case ASM_RESET_VECTOR: /* fall through */ - case ASM_MACH_VECTOR: - case ASM_PROT_VECTOR: - case ASM_ISI_VECTOR: - case ASM_EXT_VECTOR: - case ASM_ALIGN_VECTOR: - case ASM_PROG_VECTOR: - case ASM_FLOAT_VECTOR: - case ASM_DEC_VECTOR: - case ASM_SYS_VECTOR: - case ASM_TRACE_VECTOR: - case ASM_ADDR_VECTOR: - case ASM_SYSMGMT_VECTOR: - case ASM_ITM_VECTOR: - return 1; - default: return 0; - } -} - - -int mpc60x_set_exception (const rtems_raw_except_connect_data* except) -{ - unsigned int level; - - if (!mpc750_vector_is_valid(except->exceptIndex)){ - return 0; - } - /* - * Check if default handler is actually connected. If not issue an error. - * You must first get the current handler via mpc60x_get_current_exception - * and then disconnect it using mpc60x_delete_exception. - * RATIONALE : to always have the same transition by forcing the user - * to get the previous handler before accepting to disconnect. - */ - if (memcmp(mpc60x_get_vector_addr(except->exceptIndex), (void*)default_raw_except_entry.hdl.raw_hdl,default_raw_except_entry.hdl.raw_hdl_size)) { - return 0; - } - - _CPU_ISR_Disable(level); - - raw_except_table [except->exceptIndex] = *except; - codemove((void*)mpc60x_get_vector_addr(except->exceptIndex), - except->hdl.raw_hdl, - except->hdl.raw_hdl_size, - PPC_CACHE_ALIGNMENT); - except->on(except); - - _CPU_ISR_Enable(level); - return 1; -} - -int mpc60x_get_current_exception (rtems_raw_except_connect_data* except) -{ - if (!mpc750_vector_is_valid(except->exceptIndex)){ - return 0; - } - - *except = raw_except_table [except->exceptIndex]; - - return 1; -} - -int mpc60x_delete_exception (const rtems_raw_except_connect_data* except) -{ - unsigned int level; - - if (!mpc750_vector_is_valid(except->exceptIndex)){ - return 0; - } - /* - * Check if handler passed is actually connected. If not issue an error. - * You must first get the current handler via mpc60x_get_current_exception - * and then disconnect it using mpc60x_delete_exception. - * RATIONALE : to always have the same transition by forcing the user - * to get the previous handler before accepting to disconnect. - */ - if (memcmp(mpc60x_get_vector_addr(except->exceptIndex), - (void*)except->hdl.raw_hdl, - except->hdl.raw_hdl_size)) { - return 0; - } - _CPU_ISR_Disable(level); - - except->off(except); - codemove((void*)mpc60x_get_vector_addr(except->exceptIndex), - default_raw_except_entry.hdl.raw_hdl, - default_raw_except_entry.hdl.raw_hdl_size, - PPC_CACHE_ALIGNMENT); - - - raw_except_table[except->exceptIndex] = default_raw_except_entry; - raw_except_table[except->exceptIndex].exceptIndex = except->exceptIndex; - - _CPU_ISR_Enable(level); - - return 1; -} - -/* - * Exception global init. - */ -int mpc60x_init_exceptions (rtems_raw_except_global_settings* config) -{ - unsigned i; - unsigned int level; - - /* - * store various accelerators - */ - raw_except_table = config->rawExceptHdlTbl; - local_settings = config; - default_raw_except_entry = config->defaultRawEntry; - - _CPU_ISR_Disable(level); - - for (i=0; i <= LAST_VALID_EXC; i++) { - if (!mpc750_vector_is_valid(i)){ - continue; - } - codemove((void*)mpc60x_get_vector_addr(i), - raw_except_table[i].hdl.raw_hdl, - raw_except_table[i].hdl.raw_hdl_size, - PPC_CACHE_ALIGNMENT); - if (raw_except_table[i].hdl.raw_hdl != default_raw_except_entry.hdl.raw_hdl) { - raw_except_table[i].on(&raw_except_table[i]); - } - else { - raw_except_table[i].off(&raw_except_table[i]); - } - } - _CPU_ISR_Enable(level); - - return 1; -} - -int mpc60x_get_exception_config (rtems_raw_except_global_settings** config) -{ - *config = local_settings; - return 1; -} - |