haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

target/xtensa: fetch HW version from configuration overlay

Browse source 
Xtensa architecture has features which behavior depends on hardware
version. Provide hardware version information to translators: add
XtensaConfig::hw_version and use XCHAL_HW_VERSION from configuration
overlay to initialize it.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2020-05-04 04:30:45 -07:00
parent 59afd43dae
commit 2cc2278edf
2 changed files with 6 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
target/xtensa/cpu.h
View file

@ -464,6 +464,7 @@ struct XtensaConfig {
XtensaMemory sysrom;
XtensaMemory sysram;
unsigned hw_version;
uint32_t configid[2];
void *isa_internal;

8
target/xtensa/overlay_tool.h
View file

@ -60,8 +60,9 @@
#define XCHAL_RESET_VECTOR1_VADDR XCHAL_RESET_VECTOR_VADDR
#endif
#ifndef XCHAL_HW_MIN_VERSION
#define XCHAL_HW_MIN_VERSION 0
#ifndef XCHAL_HW_VERSION
#define XCHAL_HW_VERSION (XCHAL_HW_VERSION_MAJOR * 100 \
+ XCHAL_HW_VERSION_MINOR)
#endif
#ifndef XCHAL_LOOP_BUFFER_SIZE
@ -100,7 +101,7 @@
XCHAL_OPTION(XCHAL_HAVE_FP, XTENSA_OPTION_FP_COPROCESSOR) | \
XCHAL_OPTION(XCHAL_HAVE_RELEASE_SYNC, XTENSA_OPTION_MP_SYNCHRO) | \
XCHAL_OPTION(XCHAL_HAVE_S32C1I, XTENSA_OPTION_CONDITIONAL_STORE) | \
XCHAL_OPTION(((XCHAL_HAVE_S32C1I && XCHAL_HW_MIN_VERSION >= 230000) || \
XCHAL_OPTION(((XCHAL_HAVE_S32C1I && XCHAL_HW_VERSION >= 230000) || \
XCHAL_HAVE_EXCLUSIVE), XTENSA_OPTION_ATOMCTL) | \
XCHAL_OPTION(XCHAL_HAVE_DEPBITS, XTENSA_OPTION_DEPBITS) | \
/* Interrupts and exceptions */ \
@ -498,6 +499,7 @@
}
#define CONFIG_SECTION \
.hw_version = XCHAL_HW_VERSION, \
.configid = { \
XCHAL_HW_CONFIGID0, \
XCHAL_HW_CONFIGID1, \