/* * include/asm-xtensa/cpextra.h * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2003 - 2005 Tensilica Inc. */ #ifndef _XTENSA_COPROCESSOR_H #define _XTENSA_COPROCESSOR_H #include <xtensa/config/core.h> #define XTOFS(last_start,last_size,align) \ ((last_start+last_size+align-1) & -align) #define XTENSA_CP_EXTRA_OFFSET 0 #define XTENSA_CP_EXTRA_ALIGN XCHAL_EXTRA_SA_ALIGN #define XTENSA_CPE_CP0_OFFSET \ XTOFS(XTENSA_CP_EXTRA_OFFSET, XCHAL_EXTRA_SA_SIZE, XCHAL_CP0_SA_ALIGN) #define XTENSA_CPE_CP1_OFFSET \ XTOFS(XTENSA_CPE_CP0_OFFSET, XCHAL_CP0_SA_SIZE, XCHAL_CP1_SA_ALIGN) #define XTENSA_CPE_CP2_OFFSET \ XTOFS(XTENSA_CPE_CP1_OFFSET, XCHAL_CP1_SA_SIZE, XCHAL_CP2_SA_ALIGN) #define XTENSA_CPE_CP3_OFFSET \ XTOFS(XTENSA_CPE_CP2_OFFSET, XCHAL_CP2_SA_SIZE, XCHAL_CP3_SA_ALIGN) #define XTENSA_CPE_CP4_OFFSET \ XTOFS(XTENSA_CPE_CP3_OFFSET, XCHAL_CP3_SA_SIZE, XCHAL_CP4_SA_ALIGN) #define XTENSA_CPE_CP5_OFFSET \ XTOFS(XTENSA_CPE_CP4_OFFSET, XCHAL_CP4_SA_SIZE, XCHAL_CP5_SA_ALIGN) #define XTENSA_CPE_CP6_OFFSET \ XTOFS(XTENSA_CPE_CP5_OFFSET, XCHAL_CP5_SA_SIZE, XCHAL_CP6_SA_ALIGN) #define XTENSA_CPE_CP7_OFFSET \ XTOFS(XTENSA_CPE_CP6_OFFSET, XCHAL_CP6_SA_SIZE, XCHAL_CP7_SA_ALIGN) #define XTENSA_CP_EXTRA_SIZE \ XTOFS(XTENSA_CPE_CP7_OFFSET, XCHAL_CP7_SA_SIZE, 16) #if XCHAL_CP_NUM > 0 # ifndef __ASSEMBLY__ /* * Tasks that own contents of (last user) each coprocessor. * Entries are 0 for not-owned or non-existent coprocessors. * Note: The size of this structure is fixed to 8 bytes in entry.S */ typedef struct { struct task_struct *owner; /* owner */ int offset; /* offset in cpextra space. */ } coprocessor_info_t; # else # define COPROCESSOR_INFO_OWNER 0 # define COPROCESSOR_INFO_OFFSET 4 # define COPROCESSOR_INFO_SIZE 8 # endif #endif #ifndef __ASSEMBLY__ # if XCHAL_CP_NUM > 0 struct task_struct; extern void release_coprocessors (struct task_struct*); extern void save_coprocessor_registers(void*, int); # else # define release_coprocessors(task) # endif #endif #endif /* _XTENSA_COPROCESSOR_H */