[1/2] target/xtensa: fetch HW version from configuration overlay

Commit Message

Max Filippov May 17, 2020, 9:58 p.m. UTC

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 <[e-mail]>
---
 target/xtensa/cpu.h          | 1 +
 target/xtensa/overlay_tool.h | 8 +++++---
 2 files changed, 6 insertions(+), 3 deletions(-)

Patch

diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
index 7a46dccbe11b..32749378bfc7 100644
--- a/target/xtensa/cpu.h
+++ b/target/xtensa/cpu.h
@@ -464,6 +464,7 @@  struct XtensaConfig {
     XtensaMemory sysrom;
     XtensaMemory sysram;
 
+    unsigned hw_version;
     uint32_t configid[2];
 
     void *isa_internal;
diff --git a/target/xtensa/overlay_tool.h b/target/xtensa/overlay_tool.h
index cab532095c9e..a994e69b6e96 100644
--- a/target/xtensa/overlay_tool.h
+++ b/target/xtensa/overlay_tool.h
@@ -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, \