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1025 lines
43 KiB
C
1025 lines
43 KiB
C
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/*
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xtensa/hal.h -- contains a definition of the Core HAL interface
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All definitions in this header file are independent of any specific
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Xtensa processor configuration. Thus software (eg. OS, application,
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etc) can include this header file and be compiled into configuration-
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independent objects that can be distributed and eventually linked
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to the HAL library (libhal.a) to create a configuration-specific
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final executable.
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Certain definitions, however, are release/version-specific -- such as
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the XTHAL_RELEASE_xxx macros (or additions made in later versions).
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$Id: //depot/rel/Eaglenest/Xtensa/OS/target-os-src/hal.h.tpp#4 $
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Copyright (c) 1999-2014 Cadence Design Systems, Inc.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef XTENSA_HAL_H
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#define XTENSA_HAL_H
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/****************************************************************************
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Definitions Useful for Any Code, USER or PRIVILEGED
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****************************************************************************/
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/*----------------------------------------------------------------------
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Constant Definitions (shared with assembly)
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----------------------------------------------------------------------*/
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/*
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* Software (Xtensa Tools) version information. Not configuration-specific!
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*
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* NOTE: "release" is a misnomer here, these are really product "version"
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* numbers. A "release" is a collection of product versions
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* made available at once (together) to customers.
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* In the past, release and version names all matched in T####.# form,
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* making the distinction irrelevant. This is no longer the case.
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*/
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#define XTHAL_RELEASE_MAJOR 11000
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#define XTHAL_RELEASE_MINOR 3
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#define XTHAL_RELEASE_NAME "11.0.3"
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#define XTHAL_REL_11 1
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#define XTHAL_REL_11_0 1
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#define XTHAL_REL_11_0_3 1
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/* HAL version numbers (these names are for backward compatibility): */
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#define XTHAL_MAJOR_REV XTHAL_RELEASE_MAJOR
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#define XTHAL_MINOR_REV XTHAL_RELEASE_MINOR
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/*
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* A bit of software release/version history on values of XTHAL_{MAJOR,MINOR}_REV:
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*
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* SW Version MAJOR MINOR Comment
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* ======= ===== ===== =======
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* T1015.n n/a n/a (HAL not yet available)
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* T1020.{0,1,2} 0 1 (HAL beta)
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* T1020.{3,4} 0 2 First release.
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* T1020.n (n>4) 0 2 or >3 (TBD)
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* T1030.0 0 1 (HAL beta)
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* T1030.{1,2} 0 3 Equivalent to first release.
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* T1030.n (n>=3) 0 >= 3 (TBD)
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* T1040.n 1040 n Full CHAL available from T1040.2
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* T1050.n 1050 n .
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* 6.0.n 6000 n Xtensa Tools v6 (RA-200x.n)
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* 7.0.n 7000 n Xtensa Tools v7 (RB-200x.n)
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* 7.1.n 7010 n Xtensa Tools v7.1 (RB-200x.(n+2))
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* 8.0.n 8000 n Xtensa Tools v8 (RC-20xx.n)
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* 9.0.n 9000 n Xtensa Tools v9 (RD-201x.n)
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* 10.0.n 10000 n Xtensa Tools v10 (RE-201x.n)
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*
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*
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* Note: there is a distinction between the software version with
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* which something is compiled (accessible using XTHAL_RELEASE_* macros)
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* and the software version with which the HAL library was compiled
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* (accessible using Xthal_release_* global variables). This
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* distinction is particularly relevant for vendors that distribute
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* configuration-independent binaries (eg. an OS), where their customer
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* might link it with a HAL of a different Xtensa software version.
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* In this case, it may be appropriate for the OS to verify at run-time
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* whether XTHAL_RELEASE_* and Xthal_release_* are compatible.
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* [Guidelines as to which version is compatible with which are not
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* currently provided explicitly, but might be inferred from reading
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* OSKit documentation for all releases -- compatibility is also highly
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* dependent on which HAL features are used. Each version is usually
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* backward compatible, with very few exceptions if any.]
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*/
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/* Version comparison operators (among major/minor pairs): */
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#define XTHAL_REL_GE(maja,mina, majb,minb) ((maja) > (majb) || \
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((maja) == (majb) && (mina) >= (minb)))
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#define XTHAL_REL_GT(maja,mina, majb,minb) ((maja) > (majb) || \
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((maja) == (majb) && (mina) > (minb)))
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#define XTHAL_REL_LE(maja,mina, majb,minb) ((maja) < (majb) || \
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((maja) == (majb) && (mina) <= (minb)))
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#define XTHAL_REL_LT(maja,mina, majb,minb) ((maja) < (majb) || \
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((maja) == (majb) && (mina) < (minb)))
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#define XTHAL_REL_EQ(maja,mina, majb,minb) ((maja) == (majb) && (mina) == (minb))
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/* Fuzzy (3-way) logic operators: */
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#define XTHAL_MAYBE -1 /* 0=NO, 1=YES, -1=MAYBE */
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#define XTHAL_FUZZY_AND(a,b) (((a)==0 || (b)==0) ? 0 : ((a)==1 && (b)==1) ? 1 : XTHAL_MAYBE)
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#define XTHAL_FUZZY_OR(a,b) (((a)==1 || (b)==1) ? 1 : ((a)==0 && (b)==0) ? 0 : XTHAL_MAYBE)
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#define XTHAL_FUZZY_NOT(a) (((a)==0 || (a)==1) ? (1-(a)) : XTHAL_MAYBE)
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/*
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* Architectural limit, independent of configuration:
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*/
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#define XTHAL_MAX_CPS 8 /* max number of coprocessors (0..7) */
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/* Misc: */
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#define XTHAL_LITTLEENDIAN 0
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#define XTHAL_BIGENDIAN 1
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#if !defined(_ASMLANGUAGE) && !defined(_NOCLANGUAGE) && !defined(__ASSEMBLER__)
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*----------------------------------------------------------------------
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HAL
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----------------------------------------------------------------------*/
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/* Constant to be checked in build = (XTHAL_MAJOR_REV<<16)|XTHAL_MINOR_REV */
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extern const unsigned int Xthal_rev_no;
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/*----------------------------------------------------------------------
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Optional/Custom Processor State
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----------------------------------------------------------------------*/
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/* save & restore the extra processor state */
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extern void xthal_save_extra(void *base);
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extern void xthal_restore_extra(void *base);
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extern void xthal_save_cpregs(void *base, int);
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extern void xthal_restore_cpregs(void *base, int);
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/* versions specific to each coprocessor id */
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extern void xthal_save_cp0(void *base);
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extern void xthal_save_cp1(void *base);
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extern void xthal_save_cp2(void *base);
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extern void xthal_save_cp3(void *base);
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extern void xthal_save_cp4(void *base);
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extern void xthal_save_cp5(void *base);
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extern void xthal_save_cp6(void *base);
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extern void xthal_save_cp7(void *base);
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extern void xthal_restore_cp0(void *base);
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extern void xthal_restore_cp1(void *base);
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extern void xthal_restore_cp2(void *base);
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extern void xthal_restore_cp3(void *base);
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extern void xthal_restore_cp4(void *base);
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extern void xthal_restore_cp5(void *base);
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extern void xthal_restore_cp6(void *base);
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extern void xthal_restore_cp7(void *base);
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/* pointers to each of the functions above */
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extern void* Xthal_cpregs_save_fn[XTHAL_MAX_CPS];
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extern void* Xthal_cpregs_restore_fn[XTHAL_MAX_CPS];
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/* similarly for non-windowed ABI (may be same or different) */
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extern void* Xthal_cpregs_save_nw_fn[XTHAL_MAX_CPS];
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extern void* Xthal_cpregs_restore_nw_fn[XTHAL_MAX_CPS];
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/*extern void xthal_save_all_extra(void *base);*/
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/*extern void xthal_restore_all_extra(void *base);*/
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/* space for processor state */
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extern const unsigned int Xthal_extra_size;
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extern const unsigned int Xthal_extra_align;
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extern const unsigned int Xthal_cpregs_size[XTHAL_MAX_CPS];
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extern const unsigned int Xthal_cpregs_align[XTHAL_MAX_CPS];
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extern const unsigned int Xthal_all_extra_size;
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extern const unsigned int Xthal_all_extra_align;
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/* coprocessor names */
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extern const char * const Xthal_cp_names[XTHAL_MAX_CPS];
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/* initialize the extra processor */
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/*extern void xthal_init_extra(void);*/
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/* initialize the TIE coprocessor */
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/*extern void xthal_init_cp(int);*/
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/* initialize the extra processor */
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extern void xthal_init_mem_extra(void *);
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/* initialize the TIE coprocessor */
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extern void xthal_init_mem_cp(void *, int);
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/* the number of TIE coprocessors contiguous from zero (for Tor2) */
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extern const unsigned int Xthal_num_coprocessors;
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/* actual number of coprocessors */
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extern const unsigned char Xthal_cp_num;
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/* index of highest numbered coprocessor, plus one */
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extern const unsigned char Xthal_cp_max;
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/* index of highest allowed coprocessor number, per cfg, plus one */
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/*extern const unsigned char Xthal_cp_maxcfg;*/
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/* bitmask of which coprocessors are present */
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extern const unsigned int Xthal_cp_mask;
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/* read & write extra state register */
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/*extern int xthal_read_extra(void *base, unsigned reg, unsigned *value);*/
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/*extern int xthal_write_extra(void *base, unsigned reg, unsigned value);*/
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/* read & write a TIE coprocessor register */
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/*extern int xthal_read_cpreg(void *base, int cp, unsigned reg, unsigned *value);*/
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/*extern int xthal_write_cpreg(void *base, int cp, unsigned reg, unsigned value);*/
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/* return coprocessor number based on register */
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/*extern int xthal_which_cp(unsigned reg);*/
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/*----------------------------------------------------------------------
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Register Windows
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----------------------------------------------------------------------*/
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/* number of registers in register window */
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extern const unsigned int Xthal_num_aregs;
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extern const unsigned char Xthal_num_aregs_log2;
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/*----------------------------------------------------------------------
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Cache
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----------------------------------------------------------------------*/
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/* size of the cache lines in log2(bytes) */
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extern const unsigned char Xthal_icache_linewidth;
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extern const unsigned char Xthal_dcache_linewidth;
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/* size of the cache lines in bytes (2^linewidth) */
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extern const unsigned short Xthal_icache_linesize;
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extern const unsigned short Xthal_dcache_linesize;
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/* size of the caches in bytes (ways * 2^(linewidth + setwidth)) */
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extern const unsigned int Xthal_icache_size;
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extern const unsigned int Xthal_dcache_size;
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/* cache features */
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extern const unsigned char Xthal_dcache_is_writeback;
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/* invalidate the caches */
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extern void xthal_icache_region_invalidate( void *addr, unsigned size );
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extern void xthal_dcache_region_invalidate( void *addr, unsigned size );
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# ifndef XTHAL_USE_CACHE_MACROS
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extern void xthal_icache_line_invalidate(void *addr);
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extern void xthal_dcache_line_invalidate(void *addr);
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# endif
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/* write dirty data back */
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extern void xthal_dcache_region_writeback( void *addr, unsigned size );
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# ifndef XTHAL_USE_CACHE_MACROS
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extern void xthal_dcache_line_writeback(void *addr);
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# endif
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/* write dirty data back and invalidate */
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extern void xthal_dcache_region_writeback_inv( void *addr, unsigned size );
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# ifndef XTHAL_USE_CACHE_MACROS
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extern void xthal_dcache_line_writeback_inv(void *addr);
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/* sync icache and memory */
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extern void xthal_icache_sync( void );
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/* sync dcache and memory */
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extern void xthal_dcache_sync( void );
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#endif
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/* get number of icache ways enabled */
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extern unsigned int xthal_icache_get_ways(void);
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/* set number of icache ways enabled */
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extern void xthal_icache_set_ways(unsigned int ways);
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/* get number of dcache ways enabled */
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extern unsigned int xthal_dcache_get_ways(void);
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/* set number of dcache ways enabled */
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extern void xthal_dcache_set_ways(unsigned int ways);
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/* coherency (low-level -- not normally called directly) */
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extern void xthal_cache_coherence_on( void );
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extern void xthal_cache_coherence_off( void );
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/* coherency (high-level) */
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extern void xthal_cache_coherence_optin( void );
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extern void xthal_cache_coherence_optout( void );
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/*
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* Cache prefetch control.
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* The parameter to xthal_set_cache_prefetch() contains both
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* a PREFCTL register value and a mask of which bits to actually modify.
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* This allows easily combining field macros (below) by ORing,
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* leaving unspecified fields unmodified.
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*
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* For backward compatibility with the older version of this routine
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||
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* (that took 15-bit value and mask in a 32-bit parameter, for pre-RF
|
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* cores with only the lower 15 bits of PREFCTL defined), the 32-bit
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* value and mask are staggered as follows in a 64-bit parameter:
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* param[63:48] are PREFCTL[31:16] if param[31] is set
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* param[47:32] are mask[31:16] if param[31] is set
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* param[31] is set if mask is used, 0 if not
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* param[31:16] are mask[15:0] if param[31] is set
|
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* param[31:16] are PREFCTL[31:16] if param[31] is clear
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* param[15:0] are PREFCTL[15:0]
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*
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* Limitation: PREFCTL register bit 31 cannot be set without masking,
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* and bit 15 must always be set when using masking, so it is hoped that
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||
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* these two bits will remain reserved, read-as-zero in PREFCTL.
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||
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*/
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||
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#define XTHAL_PREFETCH_ENABLE -1 /* enable inst+data prefetch */
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||
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#define XTHAL_PREFETCH_DISABLE 0xFFFF0000 /* disab inst+data prefetch*/
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||
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#define XTHAL_DCACHE_PREFETCH(n) (0x800F0000+((n)&0xF)) /* data-side */
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|
|
#define XTHAL_DCACHE_PREFETCH_OFF XTHAL_DCACHE_PREFETCH(0) /* disable */
|
||
|
|
#define XTHAL_DCACHE_PREFETCH_LOW XTHAL_DCACHE_PREFETCH(4) /* less aggr.*/
|
||
|
|
#define XTHAL_DCACHE_PREFETCH_MEDIUM XTHAL_DCACHE_PREFETCH(5) /* mid aggr. */
|
||
|
|
#define XTHAL_DCACHE_PREFETCH_HIGH XTHAL_DCACHE_PREFETCH(8) /* more aggr.*/
|
||
|
|
#define XTHAL_DCACHE_PREFETCH_L1_OFF 0x90000000 /* to prefetch buffers*/
|
||
|
|
#define XTHAL_DCACHE_PREFETCH_L1 0x90001000 /* direct to L1 dcache*/
|
||
|
|
#define XTHAL_ICACHE_PREFETCH(n) (0x80F00000+(((n)&0xF)<<4)) /* i-side */
|
||
|
|
#define XTHAL_ICACHE_PREFETCH_OFF XTHAL_ICACHE_PREFETCH(0) /* disable */
|
||
|
|
#define XTHAL_ICACHE_PREFETCH_LOW XTHAL_ICACHE_PREFETCH(4) /* less aggr.*/
|
||
|
|
#define XTHAL_ICACHE_PREFETCH_MEDIUM XTHAL_ICACHE_PREFETCH(5) /* mid aggr. */
|
||
|
|
#define XTHAL_ICACHE_PREFETCH_HIGH XTHAL_ICACHE_PREFETCH(8) /* more aggr.*/
|
||
|
|
#define XTHAL_ICACHE_PREFETCH_L1_OFF 0xA0000000 /* (not implemented) */
|
||
|
|
#define XTHAL_ICACHE_PREFETCH_L1 0xA0002000 /* (not implemented) */
|
||
|
|
#define _XTHAL_PREFETCH_BLOCKS(n) ((n)<0?0:(n)<5?(n):(n)<15?((n)>>1)+2:9)
|
||
|
|
#define XTHAL_PREFETCH_BLOCKS(n) (0x0000000F80000000ULL + \
|
||
|
|
(((unsigned long long)_XTHAL_PREFETCH_BLOCKS(n))<<48))
|
||
|
|
|
||
|
|
extern int xthal_get_cache_prefetch( void );
|
||
|
|
extern int xthal_set_cache_prefetch( int );
|
||
|
|
extern int xthal_set_cache_prefetch_long( unsigned long long );
|
||
|
|
/* Only use the new extended function from now on: */
|
||
|
|
#define xthal_set_cache_prefetch xthal_set_cache_prefetch_long
|
||
|
|
#define xthal_set_cache_prefetch_nw xthal_set_cache_prefetch_long_nw
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Debug
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* 1 if debug option configured, 0 if not: */
|
||
|
|
extern const int Xthal_debug_configured;
|
||
|
|
|
||
|
|
/* Set (plant) and remove software breakpoint, both synchronizing cache: */
|
||
|
|
extern unsigned int xthal_set_soft_break(void *addr);
|
||
|
|
extern void xthal_remove_soft_break(void *addr, unsigned int);
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Disassembler
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* Max expected size of the return buffer for a disassembled instruction (hint only): */
|
||
|
|
#define XTHAL_DISASM_BUFSIZE 80
|
||
|
|
|
||
|
|
/* Disassembly option bits for selecting what to return: */
|
||
|
|
#define XTHAL_DISASM_OPT_ADDR 0x0001 /* display address */
|
||
|
|
#define XTHAL_DISASM_OPT_OPHEX 0x0002 /* display opcode bytes in hex */
|
||
|
|
#define XTHAL_DISASM_OPT_OPCODE 0x0004 /* display opcode name (mnemonic) */
|
||
|
|
#define XTHAL_DISASM_OPT_PARMS 0x0008 /* display parameters */
|
||
|
|
#define XTHAL_DISASM_OPT_ALL 0x0FFF /* display everything */
|
||
|
|
|
||
|
|
/* routine to get a string for the disassembled instruction */
|
||
|
|
extern int xthal_disassemble( unsigned char *instr_buf, void *tgt_addr,
|
||
|
|
char *buffer, unsigned buflen, unsigned options );
|
||
|
|
|
||
|
|
/* routine to get the size of the next instruction. Returns 0 for
|
||
|
|
illegal instruction */
|
||
|
|
extern int xthal_disassemble_size( unsigned char *instr_buf );
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Instruction/Data RAM/ROM Access
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern void* xthal_memcpy(void *dst, const void *src, unsigned len);
|
||
|
|
extern void* xthal_bcopy(const void *src, void *dst, unsigned len);
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
MP Synchronization
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern int xthal_compare_and_set( int *addr, int test_val, int compare_val );
|
||
|
|
|
||
|
|
/*extern const char Xthal_have_s32c1i;*/
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Miscellaneous
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern const unsigned int Xthal_release_major;
|
||
|
|
extern const unsigned int Xthal_release_minor;
|
||
|
|
extern const char * const Xthal_release_name;
|
||
|
|
extern const char * const Xthal_release_internal;
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_memory_order;
|
||
|
|
extern const unsigned char Xthal_have_windowed;
|
||
|
|
extern const unsigned char Xthal_have_density;
|
||
|
|
extern const unsigned char Xthal_have_booleans;
|
||
|
|
extern const unsigned char Xthal_have_loops;
|
||
|
|
extern const unsigned char Xthal_have_nsa;
|
||
|
|
extern const unsigned char Xthal_have_minmax;
|
||
|
|
extern const unsigned char Xthal_have_sext;
|
||
|
|
extern const unsigned char Xthal_have_clamps;
|
||
|
|
extern const unsigned char Xthal_have_mac16;
|
||
|
|
extern const unsigned char Xthal_have_mul16;
|
||
|
|
extern const unsigned char Xthal_have_fp;
|
||
|
|
extern const unsigned char Xthal_have_speculation;
|
||
|
|
extern const unsigned char Xthal_have_threadptr;
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_have_pif;
|
||
|
|
extern const unsigned short Xthal_num_writebuffer_entries;
|
||
|
|
|
||
|
|
extern const unsigned int Xthal_build_unique_id;
|
||
|
|
/* Version info for hardware targeted by software upgrades: */
|
||
|
|
extern const unsigned int Xthal_hw_configid0;
|
||
|
|
extern const unsigned int Xthal_hw_configid1;
|
||
|
|
extern const unsigned int Xthal_hw_release_major;
|
||
|
|
extern const unsigned int Xthal_hw_release_minor;
|
||
|
|
extern const char * const Xthal_hw_release_name;
|
||
|
|
extern const char * const Xthal_hw_release_internal;
|
||
|
|
|
||
|
|
/* Clear any remnant code-dependent state (i.e. clear loop count regs). */
|
||
|
|
extern void xthal_clear_regcached_code( void );
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif /*!_ASMLANGUAGE && !_NOCLANGUAGE && !__ASSEMBLER__ */
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
Definitions Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Constant Definitions (shared with assembly)
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Architectural limits, independent of configuration.
|
||
|
|
* Note that these are ISA-defined limits, not micro-architecture implementation
|
||
|
|
* limits enforced by the Xtensa Processor Generator (which may be stricter than
|
||
|
|
* these below).
|
||
|
|
*/
|
||
|
|
#define XTHAL_MAX_INTERRUPTS 32 /* max number of interrupts (0..31) */
|
||
|
|
#define XTHAL_MAX_INTLEVELS 16 /* max number of interrupt levels (0..15) */
|
||
|
|
/* (as of T1040, implementation limit is 7: 0..6) */
|
||
|
|
#define XTHAL_MAX_TIMERS 4 /* max number of timers (CCOMPARE0..CCOMPARE3) */
|
||
|
|
/* (as of T1040, implementation limit is 3: 0..2) */
|
||
|
|
|
||
|
|
/* Interrupt types: */
|
||
|
|
#define XTHAL_INTTYPE_UNCONFIGURED 0
|
||
|
|
#define XTHAL_INTTYPE_SOFTWARE 1
|
||
|
|
#define XTHAL_INTTYPE_EXTERN_EDGE 2
|
||
|
|
#define XTHAL_INTTYPE_EXTERN_LEVEL 3
|
||
|
|
#define XTHAL_INTTYPE_TIMER 4
|
||
|
|
#define XTHAL_INTTYPE_NMI 5
|
||
|
|
#define XTHAL_INTTYPE_WRITE_ERROR 6
|
||
|
|
#define XTHAL_INTTYPE_PROFILING 7
|
||
|
|
#define XTHAL_MAX_INTTYPES 8 /* number of interrupt types */
|
||
|
|
|
||
|
|
/* Timer related: */
|
||
|
|
#define XTHAL_TIMER_UNCONFIGURED -1 /* Xthal_timer_interrupt[] value for non-existent timers */
|
||
|
|
#define XTHAL_TIMER_UNASSIGNED XTHAL_TIMER_UNCONFIGURED /* (for backwards compatibility only) */
|
||
|
|
|
||
|
|
/* Local Memory ECC/Parity: */
|
||
|
|
#define XTHAL_MEMEP_PARITY 1
|
||
|
|
#define XTHAL_MEMEP_ECC 2
|
||
|
|
/* Flags parameter to xthal_memep_inject_error(): */
|
||
|
|
#define XTHAL_MEMEP_F_LOCAL 0 /* local memory (default) */
|
||
|
|
#define XTHAL_MEMEP_F_DCACHE_DATA 4 /* data cache data */
|
||
|
|
#define XTHAL_MEMEP_F_DCACHE_TAG 5 /* data cache tag */
|
||
|
|
#define XTHAL_MEMEP_F_ICACHE_DATA 6 /* instruction cache data */
|
||
|
|
#define XTHAL_MEMEP_F_ICACHE_TAG 7 /* instruction cache tag */
|
||
|
|
#define XTHAL_MEMEP_F_CORRECTABLE 16 /* inject correctable error
|
||
|
|
(default is non-corr.) */
|
||
|
|
|
||
|
|
|
||
|
|
/* Access Mode bits (tentative): */ /* bit abbr unit short_name PPC equ - Description */
|
||
|
|
#define XTHAL_AMB_EXCEPTION 0 /* 001 E EX fls: EXception none
|
||
|
|
exception on any access (aka "illegal") */
|
||
|
|
#define XTHAL_AMB_HITCACHE 1 /* 002 C CH fls: use Cache on Hit ~(I CI)
|
||
|
|
[or H HC] way from tag match;
|
||
|
|
[or U UC] (ISA: same except Isolate case) */
|
||
|
|
#define XTHAL_AMB_ALLOCATE 2 /* 004 A AL fl?: ALlocate none
|
||
|
|
[or F FI fill] refill cache on miss, way from LRU
|
||
|
|
(ISA: Read/Write Miss Refill) */
|
||
|
|
#define XTHAL_AMB_WRITETHRU 3 /* 008 W WT --s: WriteThrough W WT
|
||
|
|
store immediately to memory (ISA: same) */
|
||
|
|
#define XTHAL_AMB_ISOLATE 4 /* 010 I IS fls: ISolate none
|
||
|
|
use cache regardless of hit-vs-miss,
|
||
|
|
way from vaddr (ISA: use-cache-on-miss+hit) */
|
||
|
|
#define XTHAL_AMB_GUARD 5 /* 020 G GU ?l?: GUard G *
|
||
|
|
non-speculative; spec/replay refs not permitted */
|
||
|
|
#define XTHAL_AMB_COHERENT 6 /* 040 M MC ?ls: Mem/MP Coherent M
|
||
|
|
on read, other CPU/bus-master may need to supply data;
|
||
|
|
on write, maybe redirect to or flush other CPU dirty line; etc */
|
||
|
|
#if 0
|
||
|
|
#define XTHAL_AMB_BUFFERABLE x /* 000 B BU --s: BUfferable ?
|
||
|
|
write response may return earlier than from final destination */
|
||
|
|
#define XTHAL_AMB_ORDERED x /* 000 O OR fls: ORdered G *
|
||
|
|
mem accesses cannot be out of order */
|
||
|
|
#define XTHAL_AMB_FUSEWRITES x /* 000 F FW --s: FuseWrites none
|
||
|
|
allow combining/merging/coalescing multiple writes
|
||
|
|
(to same datapath data unit) into one
|
||
|
|
(implied by writeback) */
|
||
|
|
#define XTHAL_AMB_TRUSTED x /* 000 T TR ?l?: TRusted none
|
||
|
|
memory will not bus error (if it does,
|
||
|
|
handle as fatal imprecise interrupt) */
|
||
|
|
#define XTHAL_AMB_PREFETCH x /* 000 P PR fl?: PRefetch none
|
||
|
|
on refill, read line+1 into prefetch buffers */
|
||
|
|
#define XTHAL_AMB_STREAM x /* 000 S ST ???: STreaming none
|
||
|
|
access one of N stream buffers */
|
||
|
|
#endif /*0*/
|
||
|
|
|
||
|
|
#define XTHAL_AM_EXCEPTION (1<<XTHAL_AMB_EXCEPTION)
|
||
|
|
#define XTHAL_AM_HITCACHE (1<<XTHAL_AMB_HITCACHE)
|
||
|
|
#define XTHAL_AM_ALLOCATE (1<<XTHAL_AMB_ALLOCATE)
|
||
|
|
#define XTHAL_AM_WRITETHRU (1<<XTHAL_AMB_WRITETHRU)
|
||
|
|
#define XTHAL_AM_ISOLATE (1<<XTHAL_AMB_ISOLATE)
|
||
|
|
#define XTHAL_AM_GUARD (1<<XTHAL_AMB_GUARD)
|
||
|
|
#define XTHAL_AM_COHERENT (1<<XTHAL_AMB_COHERENT)
|
||
|
|
#if 0
|
||
|
|
#define XTHAL_AM_BUFFERABLE (1<<XTHAL_AMB_BUFFERABLE)
|
||
|
|
#define XTHAL_AM_ORDERED (1<<XTHAL_AMB_ORDERED)
|
||
|
|
#define XTHAL_AM_FUSEWRITES (1<<XTHAL_AMB_FUSEWRITES)
|
||
|
|
#define XTHAL_AM_TRUSTED (1<<XTHAL_AMB_TRUSTED)
|
||
|
|
#define XTHAL_AM_PREFETCH (1<<XTHAL_AMB_PREFETCH)
|
||
|
|
#define XTHAL_AM_STREAM (1<<XTHAL_AMB_STREAM)
|
||
|
|
#endif /*0*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Allowed Access Modes (bit combinations).
|
||
|
|
*
|
||
|
|
* Columns are:
|
||
|
|
* "FOGIWACE"
|
||
|
|
* Access mode bits (see XTHAL_AMB_xxx above).
|
||
|
|
* <letter> = bit is set
|
||
|
|
* '-' = bit is clear
|
||
|
|
* '.' = bit is irrelevant / don't care, as follows:
|
||
|
|
* E=1 makes all others irrelevant
|
||
|
|
* W,F relevant only for stores
|
||
|
|
* "2345"
|
||
|
|
* Indicates which Xtensa releases support the corresponding
|
||
|
|
* access mode. Releases for each character column are:
|
||
|
|
* 2 = prior to T1020.2: T1015 (V1.5), T1020.0, T1020.1
|
||
|
|
* 3 = T1020.2 and later: T1020.2+, T1030
|
||
|
|
* 4 = T1040
|
||
|
|
* 5 = T1050 (maybe), LX1, LX2, LX2.1
|
||
|
|
* 7 = LX2.2
|
||
|
|
* 8 = LX3, LX4
|
||
|
|
* 9 = LX5
|
||
|
|
* And the character column contents are:
|
||
|
|
* <number> = supported by release(s)
|
||
|
|
* "." = unsupported by release(s)
|
||
|
|
* "?" = support unknown
|
||
|
|
*/
|
||
|
|
/* foMGIWACE 2345789 */
|
||
|
|
/* For instruction fetch: */
|
||
|
|
#define XTHAL_FAM_EXCEPTION 0x001 /* ........E 2345789 exception */
|
||
|
|
/*efine XTHAL_FAM_ISOLATE*/ /*0x012*/ /* .---I.-C- ....... isolate */
|
||
|
|
#define XTHAL_FAM_BYPASS 0x000 /* .----.--- 2345789 bypass */
|
||
|
|
/*efine XTHAL_FAM_NACACHED*/ /*0x002*/ /* .----.-C- ....... cached no-allocate (frozen) */
|
||
|
|
#define XTHAL_FAM_CACHED 0x006 /* .----.AC- 2345789 cached */
|
||
|
|
/* For data load: */
|
||
|
|
#define XTHAL_LAM_EXCEPTION 0x001 /* ........E 2345789 exception */
|
||
|
|
#define XTHAL_LAM_ISOLATE 0x012 /* .---I.-C- 2345789 isolate */
|
||
|
|
#define XTHAL_LAM_BYPASS 0x000 /* .O---.--- 2...... bypass speculative */
|
||
|
|
#define XTHAL_LAM_BYPASSG 0x020 /* .O-G-.--- .345789 bypass guarded */
|
||
|
|
#define XTHAL_LAM_CACHED_NOALLOC 0x002 /* .O---.-C- 2345789 cached no-allocate speculative */
|
||
|
|
#define XTHAL_LAM_NACACHED XTHAL_LAM_CACHED_NOALLOC
|
||
|
|
#define XTHAL_LAM_NACACHEDG 0x022 /* .O-G-.-C- .?..... cached no-allocate guarded */
|
||
|
|
#define XTHAL_LAM_CACHED 0x006 /* .----.AC- 2345789 cached speculative */
|
||
|
|
#define XTHAL_LAM_COHCACHED 0x046 /* .-M--.AC- ....*89 cached speculative MP-coherent */
|
||
|
|
/* For data store: */
|
||
|
|
#define XTHAL_SAM_EXCEPTION 0x001 /* ........E 2345789 exception */
|
||
|
|
#define XTHAL_SAM_ISOLATE 0x032 /* .--GI--C- 2345789 isolate */
|
||
|
|
#define XTHAL_SAM_BYPASS 0x028 /* -O-G-W--- 2345789 bypass */
|
||
|
|
#define XTHAL_SAM_WRITETHRU 0x02A /* -O-G-W-C- 2345789 writethrough */
|
||
|
|
/*efine XTHAL_SAM_WRITETHRU_ALLOC*/ /*0x02E*/ /* -O-G-WAC- ....... writethrough allocate */
|
||
|
|
#define XTHAL_SAM_WRITEBACK 0x026 /* F--G--AC- ...5789 writeback */
|
||
|
|
#define XTHAL_SAM_WRITEBACK_NOALLOC 0x022 /* ?--G---C- .....89 writeback no-allocate */
|
||
|
|
#define XTHAL_SAM_COHWRITEBACK 0x066 /* F-MG--AC- ....*89 writeback MP-coherent */
|
||
|
|
/* For PIF attributes: */ /* -PIwrWCBUUUU ...9 */
|
||
|
|
#define XTHAL_PAM_BYPASS 0x000 /* xxx00000xxxx ...9 bypass non-bufferable */
|
||
|
|
#define XTHAL_PAM_BYPASS_BUF 0x010 /* xxx0000bxxxx ...9 bypass */
|
||
|
|
#define XTHAL_PAM_CACHED_NOALLOC 0x030 /* xxx0001bxxxx ...9 cached no-allocate */
|
||
|
|
#define XTHAL_PAM_WRITETHRU 0x0B0 /* xxx0101bxxxx ...9 writethrough (WT) */
|
||
|
|
#define XTHAL_PAM_WRITEBACK_NOALLOC 0x0F0 /* xxx0111bxxxx ...9 writeback no-alloc (WBNA) */
|
||
|
|
#define XTHAL_PAM_WRITEBACK 0x1F0 /* xxx1111bxxxx ...9 writeback (WB) */
|
||
|
|
/*efine XTHAL_PAM_NORMAL*/ /*0x050*/ /* xxx0010bxxxx .... (unimplemented) */
|
||
|
|
/*efine XTHAL_PAM_WRITETHRU_WA*/ /*0x130*/ /* xxx1001bxxxx .... (unimplemented, less likely) */
|
||
|
|
/*efine XTHAL_PAM_WRITETHRU_RWA*/ /*0x1B0*/ /* xxx1101bxxxx .... (unimplemented, less likely) */
|
||
|
|
/*efine XTHAL_PAM_WRITEBACK_WA*/ /*0x170*/ /* xxx1011bxxxx .... (unimplemented, less likely) */
|
||
|
|
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
/*
|
||
|
|
Cache attribute encoding for CACHEATTR (per ISA):
|
||
|
|
(Note: if this differs from ISA Ref Manual, ISA has precedence)
|
||
|
|
|
||
|
|
Inst-fetches Loads Stores
|
||
|
|
------------- ------------ -------------
|
||
|
|
0x0 FCA_EXCEPTION LCA_NACACHED SCA_WRITETHRU cached no-allocate (previously misnamed "uncached")
|
||
|
|
0x1 FCA_CACHED LCA_CACHED SCA_WRITETHRU cached
|
||
|
|
0x2 FCA_BYPASS LCA_BYPASS_G* SCA_BYPASS bypass cache (what most people call uncached)
|
||
|
|
0x3 FCA_CACHED LCA_CACHED SCA_WRITEALLOCF write-allocate
|
||
|
|
or LCA_EXCEPTION SCA_EXCEPTION (if unimplemented)
|
||
|
|
0x4 FCA_CACHED LCA_CACHED SCA_WRITEBACK[M] write-back [MP-coherent]
|
||
|
|
or LCA_EXCEPTION SCA_EXCEPTION (if unimplemented)
|
||
|
|
0x5 FCA_CACHED LCA_CACHED SCA_WRITEBACK_NOALLOC write-back no-allocate
|
||
|
|
or FCA_EXCEPTION LCA_EXCEPTION SCA_EXCEPTION (if unimplemented)
|
||
|
|
0x6..D FCA_EXCEPTION LCA_EXCEPTION SCA_EXCEPTION (reserved)
|
||
|
|
0xE FCA_EXCEPTION LCA_ISOLATE SCA_ISOLATE isolate
|
||
|
|
0xF FCA_EXCEPTION LCA_EXCEPTION SCA_EXCEPTION illegal
|
||
|
|
* Prior to T1020.2?, guard feature not supported, this defaulted to speculative (no _G)
|
||
|
|
*/
|
||
|
|
#endif /*0*/
|
||
|
|
|
||
|
|
|
||
|
|
#if !defined(_ASMLANGUAGE) && !defined(_NOCLANGUAGE) && !defined(__ASSEMBLER__)
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Register Windows
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* This spill any live register windows (other than the caller's):
|
||
|
|
* (NOTE: current implementation require privileged code, but
|
||
|
|
* a user-callable implementation is possible.) */
|
||
|
|
extern void xthal_window_spill( void );
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Optional/Custom Processor State
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* validate & invalidate the TIE register file */
|
||
|
|
extern void xthal_validate_cp(int);
|
||
|
|
extern void xthal_invalidate_cp(int);
|
||
|
|
|
||
|
|
/* read and write cpenable register */
|
||
|
|
extern void xthal_set_cpenable(unsigned);
|
||
|
|
extern unsigned xthal_get_cpenable(void);
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Interrupts
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* the number of interrupt levels */
|
||
|
|
extern const unsigned char Xthal_num_intlevels;
|
||
|
|
/* the number of interrupts */
|
||
|
|
extern const unsigned char Xthal_num_interrupts;
|
||
|
|
/* the highest level of interrupts masked by PS.EXCM */
|
||
|
|
extern const unsigned char Xthal_excm_level;
|
||
|
|
|
||
|
|
/* mask for level of interrupts */
|
||
|
|
extern const unsigned int Xthal_intlevel_mask[XTHAL_MAX_INTLEVELS];
|
||
|
|
/* mask for level 0 to N interrupts */
|
||
|
|
extern const unsigned int Xthal_intlevel_andbelow_mask[XTHAL_MAX_INTLEVELS];
|
||
|
|
|
||
|
|
/* level of each interrupt */
|
||
|
|
extern const unsigned char Xthal_intlevel[XTHAL_MAX_INTERRUPTS];
|
||
|
|
|
||
|
|
/* type per interrupt */
|
||
|
|
extern const unsigned char Xthal_inttype[XTHAL_MAX_INTERRUPTS];
|
||
|
|
|
||
|
|
/* masks of each type of interrupt */
|
||
|
|
extern const unsigned int Xthal_inttype_mask[XTHAL_MAX_INTTYPES];
|
||
|
|
|
||
|
|
/* interrupt numbers assigned to each timer interrupt */
|
||
|
|
extern const int Xthal_timer_interrupt[XTHAL_MAX_TIMERS];
|
||
|
|
|
||
|
|
/* INTENABLE,INTERRUPT,INTSET,INTCLEAR register access functions: */
|
||
|
|
extern unsigned xthal_get_intenable( void );
|
||
|
|
extern void xthal_set_intenable( unsigned );
|
||
|
|
extern unsigned xthal_get_interrupt( void );
|
||
|
|
#define xthal_get_intread xthal_get_interrupt /* backward compatibility */
|
||
|
|
extern void xthal_set_intset( unsigned );
|
||
|
|
extern void xthal_set_intclear( unsigned );
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Debug
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* Number of instruction and data break registers: */
|
||
|
|
extern const int Xthal_num_ibreak;
|
||
|
|
extern const int Xthal_num_dbreak;
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Core Counter
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* counter info */
|
||
|
|
extern const unsigned char Xthal_have_ccount; /* set if CCOUNT register present */
|
||
|
|
extern const unsigned char Xthal_num_ccompare; /* number of CCOMPAREn registers */
|
||
|
|
|
||
|
|
/* get CCOUNT register (if not present return 0) */
|
||
|
|
extern unsigned xthal_get_ccount(void);
|
||
|
|
|
||
|
|
/* set and get CCOMPAREn registers (if not present, get returns 0) */
|
||
|
|
extern void xthal_set_ccompare(int, unsigned);
|
||
|
|
extern unsigned xthal_get_ccompare(int);
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Miscellaneous
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_have_prid;
|
||
|
|
extern const unsigned char Xthal_have_exceptions;
|
||
|
|
extern const unsigned char Xthal_xea_version;
|
||
|
|
extern const unsigned char Xthal_have_interrupts;
|
||
|
|
extern const unsigned char Xthal_have_highlevel_interrupts;
|
||
|
|
extern const unsigned char Xthal_have_nmi;
|
||
|
|
|
||
|
|
extern unsigned xthal_get_prid( void );
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Virtual interrupt prioritization (DEPRECATED)
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* Convert between interrupt levels (as per PS.INTLEVEL) and virtual interrupt priorities: */
|
||
|
|
extern unsigned xthal_vpri_to_intlevel(unsigned vpri);
|
||
|
|
extern unsigned xthal_intlevel_to_vpri(unsigned intlevel);
|
||
|
|
|
||
|
|
/* Enables/disables given set (mask) of interrupts; returns previous enabled-mask of all ints: */
|
||
|
|
extern unsigned xthal_int_enable(unsigned);
|
||
|
|
extern unsigned xthal_int_disable(unsigned);
|
||
|
|
|
||
|
|
/* Set/get virtual priority of an interrupt: */
|
||
|
|
extern int xthal_set_int_vpri(int intnum, int vpri);
|
||
|
|
extern int xthal_get_int_vpri(int intnum);
|
||
|
|
|
||
|
|
/* Set/get interrupt lockout level for exclusive access to virtual priority data structures: */
|
||
|
|
extern void xthal_set_vpri_locklevel(unsigned intlevel);
|
||
|
|
extern unsigned xthal_get_vpri_locklevel(void);
|
||
|
|
|
||
|
|
/* Set/get current virtual interrupt priority: */
|
||
|
|
extern unsigned xthal_set_vpri(unsigned vpri);
|
||
|
|
extern unsigned xthal_get_vpri(void);
|
||
|
|
extern unsigned xthal_set_vpri_intlevel(unsigned intlevel);
|
||
|
|
extern unsigned xthal_set_vpri_lock(void);
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Generic Interrupt Trampolining Support (DEPRECATED)
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
typedef void (XtHalVoidFunc)(void);
|
||
|
|
|
||
|
|
/* Bitmask of interrupts currently trampolining down: */
|
||
|
|
extern unsigned Xthal_tram_pending;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bitmask of which interrupts currently trampolining down synchronously are
|
||
|
|
* actually enabled; this bitmask is necessary because INTENABLE cannot hold
|
||
|
|
* that state (sync-trampolining interrupts must be kept disabled while
|
||
|
|
* trampolining); in the current implementation, any bit set here is not set
|
||
|
|
* in INTENABLE, and vice-versa; once a sync-trampoline is handled (at level
|
||
|
|
* one), its enable bit must be moved from here to INTENABLE:
|
||
|
|
*/
|
||
|
|
extern unsigned Xthal_tram_enabled;
|
||
|
|
|
||
|
|
/* Bitmask of interrupts configured for sync trampolining: */
|
||
|
|
extern unsigned Xthal_tram_sync;
|
||
|
|
|
||
|
|
/* Trampoline support functions: */
|
||
|
|
extern unsigned xthal_tram_pending_to_service( void );
|
||
|
|
extern void xthal_tram_done( unsigned serviced_mask );
|
||
|
|
extern int xthal_tram_set_sync( int intnum, int sync );
|
||
|
|
extern XtHalVoidFunc* xthal_set_tram_trigger_func( XtHalVoidFunc *trigger_fn );
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Internal Memories
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_num_instrom;
|
||
|
|
extern const unsigned char Xthal_num_instram;
|
||
|
|
extern const unsigned char Xthal_num_datarom;
|
||
|
|
extern const unsigned char Xthal_num_dataram;
|
||
|
|
extern const unsigned char Xthal_num_xlmi;
|
||
|
|
|
||
|
|
/* Each of the following arrays contains at least one entry,
|
||
|
|
* or as many entries as needed if more than one: */
|
||
|
|
extern const unsigned int Xthal_instrom_vaddr[];
|
||
|
|
extern const unsigned int Xthal_instrom_paddr[];
|
||
|
|
extern const unsigned int Xthal_instrom_size [];
|
||
|
|
extern const unsigned int Xthal_instram_vaddr[];
|
||
|
|
extern const unsigned int Xthal_instram_paddr[];
|
||
|
|
extern const unsigned int Xthal_instram_size [];
|
||
|
|
extern const unsigned int Xthal_datarom_vaddr[];
|
||
|
|
extern const unsigned int Xthal_datarom_paddr[];
|
||
|
|
extern const unsigned int Xthal_datarom_size [];
|
||
|
|
extern const unsigned int Xthal_dataram_vaddr[];
|
||
|
|
extern const unsigned int Xthal_dataram_paddr[];
|
||
|
|
extern const unsigned int Xthal_dataram_size [];
|
||
|
|
extern const unsigned int Xthal_xlmi_vaddr[];
|
||
|
|
extern const unsigned int Xthal_xlmi_paddr[];
|
||
|
|
extern const unsigned int Xthal_xlmi_size [];
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Cache
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* number of cache sets in log2(lines per way) */
|
||
|
|
extern const unsigned char Xthal_icache_setwidth;
|
||
|
|
extern const unsigned char Xthal_dcache_setwidth;
|
||
|
|
/* cache set associativity (number of ways) */
|
||
|
|
extern const unsigned int Xthal_icache_ways;
|
||
|
|
extern const unsigned int Xthal_dcache_ways;
|
||
|
|
/* cache features */
|
||
|
|
extern const unsigned char Xthal_icache_line_lockable;
|
||
|
|
extern const unsigned char Xthal_dcache_line_lockable;
|
||
|
|
|
||
|
|
/* cache attribute register control (used by other HAL routines) */
|
||
|
|
extern unsigned xthal_get_cacheattr( void );
|
||
|
|
extern unsigned xthal_get_icacheattr( void );
|
||
|
|
extern unsigned xthal_get_dcacheattr( void );
|
||
|
|
extern void xthal_set_cacheattr( unsigned );
|
||
|
|
extern void xthal_set_icacheattr( unsigned );
|
||
|
|
extern void xthal_set_dcacheattr( unsigned );
|
||
|
|
/* set cache attribute (access modes) for a range of memory */
|
||
|
|
extern int xthal_set_region_attribute( void *addr, unsigned size,
|
||
|
|
unsigned cattr, unsigned flags );
|
||
|
|
/* Bits of flags parameter to xthal_set_region_attribute(): */
|
||
|
|
#define XTHAL_CAFLAG_EXPAND 0x000100 /* only expand allowed access to range, don't reduce it */
|
||
|
|
#define XTHAL_CAFLAG_EXACT 0x000200 /* return error if can't apply change to exact range specified */
|
||
|
|
#define XTHAL_CAFLAG_NO_PARTIAL 0x000400 /* don't apply change to regions partially covered by range */
|
||
|
|
#define XTHAL_CAFLAG_NO_AUTO_WB 0x000800 /* don't writeback data after leaving writeback attribute */
|
||
|
|
#define XTHAL_CAFLAG_NO_AUTO_INV 0x001000 /* don't invalidate after disabling cache (entering bypass) */
|
||
|
|
|
||
|
|
/* enable caches */
|
||
|
|
extern void xthal_icache_enable( void ); /* DEPRECATED */
|
||
|
|
extern void xthal_dcache_enable( void ); /* DEPRECATED */
|
||
|
|
/* disable caches */
|
||
|
|
extern void xthal_icache_disable( void ); /* DEPRECATED */
|
||
|
|
extern void xthal_dcache_disable( void ); /* DEPRECATED */
|
||
|
|
|
||
|
|
/* invalidate the caches */
|
||
|
|
extern void xthal_icache_all_invalidate( void );
|
||
|
|
extern void xthal_dcache_all_invalidate( void );
|
||
|
|
/* write dirty data back */
|
||
|
|
extern void xthal_dcache_all_writeback( void );
|
||
|
|
/* write dirty data back and invalidate */
|
||
|
|
extern void xthal_dcache_all_writeback_inv( void );
|
||
|
|
/* prefetch and lock specified memory range into cache */
|
||
|
|
extern void xthal_icache_region_lock( void *addr, unsigned size );
|
||
|
|
extern void xthal_dcache_region_lock( void *addr, unsigned size );
|
||
|
|
# ifndef XTHAL_USE_CACHE_MACROS
|
||
|
|
extern void xthal_icache_line_lock(void *addr);
|
||
|
|
extern void xthal_dcache_line_lock(void *addr);
|
||
|
|
# endif
|
||
|
|
/* unlock from cache */
|
||
|
|
extern void xthal_icache_all_unlock( void );
|
||
|
|
extern void xthal_dcache_all_unlock( void );
|
||
|
|
extern void xthal_icache_region_unlock( void *addr, unsigned size );
|
||
|
|
extern void xthal_dcache_region_unlock( void *addr, unsigned size );
|
||
|
|
# ifndef XTHAL_USE_CACHE_MACROS
|
||
|
|
extern void xthal_icache_line_unlock(void *addr);
|
||
|
|
extern void xthal_dcache_line_unlock(void *addr);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Local Memory ECC/Parity
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
/* Inject memory errors; flags is bit combination of XTHAL_MEMEP_F_xxx: */
|
||
|
|
extern void xthal_memep_inject_error(void *addr, int size, int flags);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*----------------------------------------------------------------------
|
||
|
|
Memory Management Unit
|
||
|
|
----------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_have_spanning_way;
|
||
|
|
extern const unsigned char Xthal_have_identity_map;
|
||
|
|
extern const unsigned char Xthal_have_mimic_cacheattr;
|
||
|
|
extern const unsigned char Xthal_have_xlt_cacheattr;
|
||
|
|
extern const unsigned char Xthal_have_cacheattr;
|
||
|
|
extern const unsigned char Xthal_have_tlbs;
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_mmu_asid_bits; /* 0 .. 8 */
|
||
|
|
extern const unsigned char Xthal_mmu_asid_kernel;
|
||
|
|
extern const unsigned char Xthal_mmu_rings; /* 1 .. 4 (perhaps 0 if no MMU and/or no protection?) */
|
||
|
|
extern const unsigned char Xthal_mmu_ring_bits;
|
||
|
|
extern const unsigned char Xthal_mmu_sr_bits;
|
||
|
|
extern const unsigned char Xthal_mmu_ca_bits;
|
||
|
|
extern const unsigned int Xthal_mmu_max_pte_page_size;
|
||
|
|
extern const unsigned int Xthal_mmu_min_pte_page_size;
|
||
|
|
|
||
|
|
extern const unsigned char Xthal_itlb_way_bits;
|
||
|
|
extern const unsigned char Xthal_itlb_ways;
|
||
|
|
extern const unsigned char Xthal_itlb_arf_ways;
|
||
|
|
extern const unsigned char Xthal_dtlb_way_bits;
|
||
|
|
extern const unsigned char Xthal_dtlb_ways;
|
||
|
|
extern const unsigned char Xthal_dtlb_arf_ways;
|
||
|
|
|
||
|
|
/* Convert between virtual and physical addresses (through static maps only): */
|
||
|
|
/*** WARNING: these two functions may go away in a future release; don't depend on them! ***/
|
||
|
|
extern int xthal_static_v2p( unsigned vaddr, unsigned *paddrp );
|
||
|
|
extern int xthal_static_p2v( unsigned paddr, unsigned *vaddrp, unsigned cached );
|
||
|
|
|
||
|
|
#define XCHAL_SUCCESS 0
|
||
|
|
#define XCHAL_ADDRESS_MISALIGNED -1
|
||
|
|
#define XCHAL_INEXACT -2
|
||
|
|
#define XCHAL_INVALID_ADDRESS -3
|
||
|
|
#define XCHAL_UNSUPPORTED_ON_THIS_ARCH -4
|
||
|
|
#define XCHAL_NO_PAGES_MAPPED -5
|
||
|
|
#define XTHAL_NO_MAPPING -6
|
||
|
|
|
||
|
|
#define XCHAL_CA_R (0xC0 | 0x40000000)
|
||
|
|
#define XCHAL_CA_RX (0xD0 | 0x40000000)
|
||
|
|
#define XCHAL_CA_RW (0xE0 | 0x40000000)
|
||
|
|
#define XCHAL_CA_RWX (0xF0 | 0x40000000)
|
||
|
|
|
||
|
|
extern int xthal_set_region_translation(void* vaddr, void* paddr, unsigned size, unsigned cache_atr, unsigned flags);
|
||
|
|
extern int xthal_v2p(void*, void**, unsigned*, unsigned*);
|
||
|
|
extern int xthal_invalidate_region(void* addr);
|
||
|
|
extern int xthal_set_region_translation_raw(void *vaddr, void *paddr, unsigned cattr);
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#ifdef __cplusplus
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}
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#endif
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#endif /*!_ASMLANGUAGE && !_NOCLANGUAGE && !__ASSEMBLER__ */
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#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
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/****************************************************************************
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EXPERIMENTAL and DEPRECATED Definitions
|
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****************************************************************************/
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||
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#if !defined(_ASMLANGUAGE) && !defined(_NOCLANGUAGE) && !defined(__ASSEMBLER__)
|
||
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#ifdef __cplusplus
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||
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extern "C" {
|
||
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#endif
|
||
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||
|
|
#ifdef INCLUDE_DEPRECATED_HAL_CODE
|
||
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|
extern const unsigned char Xthal_have_old_exc_arch;
|
||
|
|
extern const unsigned char Xthal_have_mmu;
|
||
|
|
extern const unsigned int Xthal_num_regs;
|
||
|
|
extern const unsigned char Xthal_num_iroms;
|
||
|
|
extern const unsigned char Xthal_num_irams;
|
||
|
|
extern const unsigned char Xthal_num_droms;
|
||
|
|
extern const unsigned char Xthal_num_drams;
|
||
|
|
extern const unsigned int Xthal_configid0;
|
||
|
|
extern const unsigned int Xthal_configid1;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef INCLUDE_DEPRECATED_HAL_DEBUG_CODE
|
||
|
|
#define XTHAL_24_BIT_BREAK 0x80000000
|
||
|
|
#define XTHAL_16_BIT_BREAK 0x40000000
|
||
|
|
extern const unsigned short Xthal_ill_inst_16[16];
|
||
|
|
#define XTHAL_DEST_REG 0xf0000000 /* Mask for destination register */
|
||
|
|
#define XTHAL_DEST_REG_INST 0x08000000 /* Branch address is in register */
|
||
|
|
#define XTHAL_DEST_REL_INST 0x04000000 /* Branch address is relative */
|
||
|
|
#define XTHAL_RFW_INST 0x00000800
|
||
|
|
#define XTHAL_RFUE_INST 0x00000400
|
||
|
|
#define XTHAL_RFI_INST 0x00000200
|
||
|
|
#define XTHAL_RFE_INST 0x00000100
|
||
|
|
#define XTHAL_RET_INST 0x00000080
|
||
|
|
#define XTHAL_BREAK_INST 0x00000040
|
||
|
|
#define XTHAL_SYSCALL_INST 0x00000020
|
||
|
|
#define XTHAL_LOOP_END 0x00000010 /* Not set by xthal_inst_type */
|
||
|
|
#define XTHAL_JUMP_INST 0x00000008 /* Call or jump instruction */
|
||
|
|
#define XTHAL_BRANCH_INST 0x00000004 /* Branch instruction */
|
||
|
|
#define XTHAL_24_BIT_INST 0x00000002
|
||
|
|
#define XTHAL_16_BIT_INST 0x00000001
|
||
|
|
typedef struct xthal_state {
|
||
|
|
unsigned pc;
|
||
|
|
unsigned ar[16];
|
||
|
|
unsigned lbeg;
|
||
|
|
unsigned lend;
|
||
|
|
unsigned lcount;
|
||
|
|
unsigned extra_ptr;
|
||
|
|
unsigned cpregs_ptr[XTHAL_MAX_CPS];
|
||
|
|
} XTHAL_STATE;
|
||
|
|
extern unsigned int xthal_inst_type(void *addr);
|
||
|
|
extern unsigned int xthal_branch_addr(void *addr);
|
||
|
|
extern unsigned int xthal_get_npc(XTHAL_STATE *user_state);
|
||
|
|
#endif /* INCLUDE_DEPRECATED_HAL_DEBUG_CODE */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif /*!_ASMLANGUAGE && !_NOCLANGUAGE && !__ASSEMBLER__ */
|
||
|
|
|
||
|
|
#endif /*XTENSA_HAL_H*/
|
||
|
|
|