diff mbox series

[PULL,06/11] target/nios2: fix page-fit instruction count

Message ID 20210607185730.346641-7-laurent@vivier.eu
State New
Headers show
Series [PULL,01/11] target/riscv: Do not include 'pmp.h' in user emulation | expand

Commit Message

Laurent Vivier June 7, 2021, 6:57 p.m. UTC 
From: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru>

This patch fixes calculation of number of the instructions
that fit the current page. It prevents creation of the translation
blocks that cross the page boundaries. It is required for deterministic
exception generation in icount mode.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <162072241046.823357.10485774346114851009.stgit@pasha-ThinkPad-X280>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target/nios2/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/nios2/translate.c b/target/nios2/translate.c
index 9824544eb37c..399f22d93862 100644
--- a/target/nios2/translate.c
+++ b/target/nios2/translate.c
@@ -829,7 +829,7 @@  void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
     /* Set up instruction counts */
     num_insns = 0;
     if (max_insns > 1) {
-        int page_insns = (TARGET_PAGE_SIZE - (tb->pc & TARGET_PAGE_MASK)) / 4;
+        int page_insns = (TARGET_PAGE_SIZE - (tb->pc & ~TARGET_PAGE_MASK)) / 4;
         if (max_insns > page_insns) {
             max_insns = page_insns;
         }