| /* |
| * tie-asm.h -- compile-time HAL assembler definitions dependent on CORE & TIE |
| * |
| * NOTE: This header file is not meant to be included directly. |
| */ |
| |
| /* This header file contains assembly-language definitions (assembly |
| macros, etc.) for this specific Xtensa processor's TIE extensions |
| and options. It is customized to this Xtensa processor configuration. |
| |
| Copyright (c) 1999-2014 Tensilica Inc. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice shall be included |
| in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| |
| #ifndef _XTENSA_CORE_TIE_ASM_H |
| #define _XTENSA_CORE_TIE_ASM_H |
| |
| /* Selection parameter values for save-area save/restore macros: */ |
| /* Option vs. TIE: */ |
| #define XTHAL_SAS_TIE 0x0001 /* custom extension or coprocessor */ |
| #define XTHAL_SAS_OPT 0x0002 /* optional (and not a coprocessor) */ |
| #define XTHAL_SAS_ANYOT 0x0003 /* both of the above */ |
| /* Whether used automatically by compiler: */ |
| #define XTHAL_SAS_NOCC 0x0004 /* not used by compiler w/o special opts/code */ |
| #define XTHAL_SAS_CC 0x0008 /* used by compiler without special opts/code */ |
| #define XTHAL_SAS_ANYCC 0x000C /* both of the above */ |
| /* ABI handling across function calls: */ |
| #define XTHAL_SAS_CALR 0x0010 /* caller-saved */ |
| #define XTHAL_SAS_CALE 0x0020 /* callee-saved */ |
| #define XTHAL_SAS_GLOB 0x0040 /* global across function calls (in thread) */ |
| #define XTHAL_SAS_ANYABI 0x0070 /* all of the above three */ |
| /* Misc */ |
| #define XTHAL_SAS_ALL 0xFFFF /* include all default NCP contents */ |
| #define XTHAL_SAS3(optie,ccuse,abi) ( ((optie) & XTHAL_SAS_ANYOT) \ |
| | ((ccuse) & XTHAL_SAS_ANYCC) \ |
| | ((abi) & XTHAL_SAS_ANYABI) ) |
| |
| |
| |
| /* |
| * Macro to save all non-coprocessor (extra) custom TIE and optional state |
| * (not including zero-overhead loop registers). |
| * Required parameters: |
| * ptr Save area pointer address register (clobbered) |
| * (register must contain a 4 byte aligned address). |
| * at1..at4 Four temporary address registers (first XCHAL_NCP_NUM_ATMPS |
| * registers are clobbered, the remaining are unused). |
| * Optional parameters: |
| * continue If macro invoked as part of a larger store sequence, set to 1 |
| * if this is not the first in the sequence. Defaults to 0. |
| * ofs Offset from start of larger sequence (from value of first ptr |
| * in sequence) at which to store. Defaults to next available space |
| * (or 0 if <continue> is 0). |
| * select Select what category(ies) of registers to store, as a bitmask |
| * (see XTHAL_SAS_xxx constants). Defaults to all registers. |
| * alloc Select what category(ies) of registers to allocate; if any |
| * category is selected here that is not in <select>, space for |
| * the corresponding registers is skipped without doing any store. |
| */ |
| .macro xchal_ncp_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0 |
| xchal_sa_start \continue, \ofs |
| // Optional global register used by default by the compiler: |
| .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select) |
| xchal_sa_align \ptr, 0, 1020, 4, 4 |
| rur.THREADPTR \at1 // threadptr option |
| s32i \at1, \ptr, .Lxchal_ofs_+0 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 4 |
| .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 1020, 4, 4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 4 |
| .endif |
| // Optional caller-saved registers used by default by the compiler: |
| .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select) |
| xchal_sa_align \ptr, 0, 1016, 4, 4 |
| rsr.ACCLO \at1 // MAC16 option |
| s32i \at1, \ptr, .Lxchal_ofs_+0 |
| rsr.ACCHI \at1 // MAC16 option |
| s32i \at1, \ptr, .Lxchal_ofs_+4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 8 |
| .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 1016, 4, 4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 8 |
| .endif |
| // Optional caller-saved registers not used by default by the compiler: |
| .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select) |
| xchal_sa_align \ptr, 0, 1000, 4, 4 |
| rsr.M0 \at1 // MAC16 option |
| s32i \at1, \ptr, .Lxchal_ofs_+0 |
| rsr.M1 \at1 // MAC16 option |
| s32i \at1, \ptr, .Lxchal_ofs_+4 |
| rsr.M2 \at1 // MAC16 option |
| s32i \at1, \ptr, .Lxchal_ofs_+8 |
| rsr.M3 \at1 // MAC16 option |
| s32i \at1, \ptr, .Lxchal_ofs_+12 |
| rsr.BR \at1 // boolean option |
| s32i \at1, \ptr, .Lxchal_ofs_+16 |
| rsr.SCOMPARE1 \at1 // conditional store option |
| s32i \at1, \ptr, .Lxchal_ofs_+20 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 24 |
| .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 1000, 4, 4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 24 |
| .endif |
| .endm // xchal_ncp_store |
| |
| /* |
| * Macro to restore all non-coprocessor (extra) custom TIE and optional state |
| * (not including zero-overhead loop registers). |
| * Required parameters: |
| * ptr Save area pointer address register (clobbered) |
| * (register must contain a 4 byte aligned address). |
| * at1..at4 Four temporary address registers (first XCHAL_NCP_NUM_ATMPS |
| * registers are clobbered, the remaining are unused). |
| * Optional parameters: |
| * continue If macro invoked as part of a larger load sequence, set to 1 |
| * if this is not the first in the sequence. Defaults to 0. |
| * ofs Offset from start of larger sequence (from value of first ptr |
| * in sequence) at which to load. Defaults to next available space |
| * (or 0 if <continue> is 0). |
| * select Select what category(ies) of registers to load, as a bitmask |
| * (see XTHAL_SAS_xxx constants). Defaults to all registers. |
| * alloc Select what category(ies) of registers to allocate; if any |
| * category is selected here that is not in <select>, space for |
| * the corresponding registers is skipped without doing any load. |
| */ |
| .macro xchal_ncp_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0 |
| xchal_sa_start \continue, \ofs |
| // Optional global register used by default by the compiler: |
| .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select) |
| xchal_sa_align \ptr, 0, 1020, 4, 4 |
| l32i \at1, \ptr, .Lxchal_ofs_+0 |
| wur.THREADPTR \at1 // threadptr option |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 4 |
| .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 1020, 4, 4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 4 |
| .endif |
| // Optional caller-saved registers used by default by the compiler: |
| .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select) |
| xchal_sa_align \ptr, 0, 1016, 4, 4 |
| l32i \at1, \ptr, .Lxchal_ofs_+0 |
| wsr.ACCLO \at1 // MAC16 option |
| l32i \at1, \ptr, .Lxchal_ofs_+4 |
| wsr.ACCHI \at1 // MAC16 option |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 8 |
| .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 1016, 4, 4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 8 |
| .endif |
| // Optional caller-saved registers not used by default by the compiler: |
| .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select) |
| xchal_sa_align \ptr, 0, 1000, 4, 4 |
| l32i \at1, \ptr, .Lxchal_ofs_+0 |
| wsr.M0 \at1 // MAC16 option |
| l32i \at1, \ptr, .Lxchal_ofs_+4 |
| wsr.M1 \at1 // MAC16 option |
| l32i \at1, \ptr, .Lxchal_ofs_+8 |
| wsr.M2 \at1 // MAC16 option |
| l32i \at1, \ptr, .Lxchal_ofs_+12 |
| wsr.M3 \at1 // MAC16 option |
| l32i \at1, \ptr, .Lxchal_ofs_+16 |
| wsr.BR \at1 // boolean option |
| l32i \at1, \ptr, .Lxchal_ofs_+20 |
| wsr.SCOMPARE1 \at1 // conditional store option |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 24 |
| .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 1000, 4, 4 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 24 |
| .endif |
| .endm // xchal_ncp_load |
| |
| |
| #define XCHAL_NCP_NUM_ATMPS 1 |
| |
| |
| |
| |
| /* |
| * Macro to save the state of TIE coprocessor AudioEngineLX. |
| * Required parameters: |
| * ptr Save area pointer address register (clobbered) |
| * (register must contain a 8 byte aligned address). |
| * at1..at4 Four temporary address registers (first XCHAL_CP1_NUM_ATMPS |
| * registers are clobbered, the remaining are unused). |
| * Optional parameters are the same as for xchal_ncp_store. |
| */ |
| #define xchal_cp_AudioEngineLX_store xchal_cp1_store |
| .macro xchal_cp1_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0 |
| xchal_sa_start \continue, \ofs |
| // Custom caller-saved registers not used by default by the compiler: |
| .ifeq (XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select) |
| xchal_sa_align \ptr, 0, 0, 8, 8 |
| rur.AE_OVF_SAR \at1 // ureg 240 |
| s32i \at1, \ptr, .Lxchal_ofs_+0 |
| rur.AE_BITHEAD \at1 // ureg 241 |
| s32i \at1, \ptr, .Lxchal_ofs_+4 |
| rur.AE_TS_FTS_BU_BP \at1 // ureg 242 |
| s32i \at1, \ptr, .Lxchal_ofs_+8 |
| rur.AE_CW_SD_NO \at1 // ureg 243 |
| s32i \at1, \ptr, .Lxchal_ofs_+12 |
| rur.AE_CBEGIN0 \at1 // ureg 246 |
| s32i \at1, \ptr, .Lxchal_ofs_+16 |
| rur.AE_CEND0 \at1 // ureg 247 |
| s32i \at1, \ptr, .Lxchal_ofs_+20 |
| AE_S64.I aed0, \ptr, .Lxchal_ofs_+24 |
| AE_S64.I aed1, \ptr, .Lxchal_ofs_+32 |
| AE_S64.I aed2, \ptr, .Lxchal_ofs_+40 |
| AE_S64.I aed3, \ptr, .Lxchal_ofs_+48 |
| AE_S64.I aed4, \ptr, .Lxchal_ofs_+56 |
| addi \ptr, \ptr, 64 |
| AE_S64.I aed5, \ptr, .Lxchal_ofs_+0 |
| AE_S64.I aed6, \ptr, .Lxchal_ofs_+8 |
| AE_S64.I aed7, \ptr, .Lxchal_ofs_+16 |
| AE_S64.I aed8, \ptr, .Lxchal_ofs_+24 |
| AE_S64.I aed9, \ptr, .Lxchal_ofs_+32 |
| AE_S64.I aed10, \ptr, .Lxchal_ofs_+40 |
| AE_S64.I aed11, \ptr, .Lxchal_ofs_+48 |
| AE_S64.I aed12, \ptr, .Lxchal_ofs_+56 |
| addi \ptr, \ptr, 64 |
| AE_S64.I aed13, \ptr, .Lxchal_ofs_+0 |
| AE_S64.I aed14, \ptr, .Lxchal_ofs_+8 |
| AE_S64.I aed15, \ptr, .Lxchal_ofs_+16 |
| AE_SALIGN64.I u0, \ptr, .Lxchal_ofs_+24 |
| AE_SALIGN64.I u1, \ptr, .Lxchal_ofs_+32 |
| AE_SALIGN64.I u2, \ptr, .Lxchal_ofs_+40 |
| AE_SALIGN64.I u3, \ptr, .Lxchal_ofs_+48 |
| .set .Lxchal_pofs_, .Lxchal_pofs_ + 128 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 56 |
| .elseif ((XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 0, 8, 8 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 184 |
| .endif |
| .endm // xchal_cp1_store |
| |
| /* |
| * Macro to restore the state of TIE coprocessor AudioEngineLX. |
| * Required parameters: |
| * ptr Save area pointer address register (clobbered) |
| * (register must contain a 8 byte aligned address). |
| * at1..at4 Four temporary address registers (first XCHAL_CP1_NUM_ATMPS |
| * registers are clobbered, the remaining are unused). |
| * Optional parameters are the same as for xchal_ncp_load. |
| */ |
| #define xchal_cp_AudioEngineLX_load xchal_cp1_load |
| .macro xchal_cp1_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0 |
| xchal_sa_start \continue, \ofs |
| // Custom caller-saved registers not used by default by the compiler: |
| .ifeq (XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select) |
| xchal_sa_align \ptr, 0, 0, 8, 8 |
| l32i \at1, \ptr, .Lxchal_ofs_+0 |
| wur.AE_OVF_SAR \at1 // ureg 240 |
| l32i \at1, \ptr, .Lxchal_ofs_+4 |
| wur.AE_BITHEAD \at1 // ureg 241 |
| l32i \at1, \ptr, .Lxchal_ofs_+8 |
| wur.AE_TS_FTS_BU_BP \at1 // ureg 242 |
| l32i \at1, \ptr, .Lxchal_ofs_+12 |
| wur.AE_CW_SD_NO \at1 // ureg 243 |
| l32i \at1, \ptr, .Lxchal_ofs_+16 |
| wur.AE_CBEGIN0 \at1 // ureg 246 |
| l32i \at1, \ptr, .Lxchal_ofs_+20 |
| wur.AE_CEND0 \at1 // ureg 247 |
| AE_L64.I aed0, \ptr, .Lxchal_ofs_+24 |
| AE_L64.I aed1, \ptr, .Lxchal_ofs_+32 |
| AE_L64.I aed2, \ptr, .Lxchal_ofs_+40 |
| AE_L64.I aed3, \ptr, .Lxchal_ofs_+48 |
| AE_L64.I aed4, \ptr, .Lxchal_ofs_+56 |
| addi \ptr, \ptr, 64 |
| AE_L64.I aed5, \ptr, .Lxchal_ofs_+0 |
| AE_L64.I aed6, \ptr, .Lxchal_ofs_+8 |
| AE_L64.I aed7, \ptr, .Lxchal_ofs_+16 |
| AE_L64.I aed8, \ptr, .Lxchal_ofs_+24 |
| AE_L64.I aed9, \ptr, .Lxchal_ofs_+32 |
| AE_L64.I aed10, \ptr, .Lxchal_ofs_+40 |
| AE_L64.I aed11, \ptr, .Lxchal_ofs_+48 |
| AE_L64.I aed12, \ptr, .Lxchal_ofs_+56 |
| addi \ptr, \ptr, 64 |
| AE_L64.I aed13, \ptr, .Lxchal_ofs_+0 |
| AE_L64.I aed14, \ptr, .Lxchal_ofs_+8 |
| AE_L64.I aed15, \ptr, .Lxchal_ofs_+16 |
| AE_LALIGN64.I u0, \ptr, .Lxchal_ofs_+24 |
| AE_LALIGN64.I u1, \ptr, .Lxchal_ofs_+32 |
| AE_LALIGN64.I u2, \ptr, .Lxchal_ofs_+40 |
| AE_LALIGN64.I u3, \ptr, .Lxchal_ofs_+48 |
| .set .Lxchal_pofs_, .Lxchal_pofs_ + 128 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 56 |
| .elseif ((XTHAL_SAS_TIE | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0 |
| xchal_sa_align \ptr, 0, 0, 8, 8 |
| .set .Lxchal_ofs_, .Lxchal_ofs_ + 184 |
| .endif |
| .endm // xchal_cp1_load |
| |
| #define XCHAL_CP1_NUM_ATMPS 1 |
| #define XCHAL_SA_NUM_ATMPS 1 |
| |
| /* Empty macros for unconfigured coprocessors: */ |
| .macro xchal_cp0_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp0_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp2_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp2_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp3_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp3_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp4_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp4_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp5_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp5_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp6_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp6_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp7_store p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| .macro xchal_cp7_load p a b c d continue=0 ofs=-1 select=-1 ; .endm |
| |
| #endif /*_XTENSA_CORE_TIE_ASM_H*/ |
