summary refs log tree commit diff stats
diff options
context:
space:
mode:
authorRichard Henderson <richard.henderson@linaro.org>2023-06-21 12:27:27 +0200
committerRichard Henderson <richard.henderson@linaro.org>2023-06-26 17:33:00 +0200
commita0eaae08c7c6a59c185cf646b02f4167b2ac6ec0 (patch)
tree06257b623f9014b19f62525cea3a5f4aa168412d
parent187ba6945345cedf2f343fcc33e5616186aebe9d (diff)
downloadfocaccia-qemu-a0eaae08c7c6a59c185cf646b02f4167b2ac6ec0.tar.gz
focaccia-qemu-a0eaae08c7c6a59c185cf646b02f4167b2ac6ec0.zip
accel/tcg: Renumber TLB_DISCARD_WRITE
Move to fill a hole in the set of bits.
Reduce the total number of tlb bits by 1.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r--include/exec/cpu-all.h4
-rw-r--r--tcg/tcg-op-ldst.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index b5618613cc..8018ce783e 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -325,10 +325,10 @@ CPUArchState *cpu_copy(CPUArchState *env);
 #define TLB_NOTDIRTY        (1 << (TARGET_PAGE_BITS_MIN - 2))
 /* Set if TLB entry is an IO callback.  */
 #define TLB_MMIO            (1 << (TARGET_PAGE_BITS_MIN - 3))
+/* Set if TLB entry writes ignored.  */
+#define TLB_DISCARD_WRITE   (1 << (TARGET_PAGE_BITS_MIN - 4))
 /* Set if the slow path must be used; more flags in CPUTLBEntryFull. */
 #define TLB_FORCE_SLOW      (1 << (TARGET_PAGE_BITS_MIN - 5))
-/* Set if TLB entry writes ignored.  */
-#define TLB_DISCARD_WRITE   (1 << (TARGET_PAGE_BITS_MIN - 6))
 
 /*
  * Use this mask to check interception with an alignment mask
diff --git a/tcg/tcg-op-ldst.c b/tcg/tcg-op-ldst.c
index a4f51bfb6e..0fcc1618e5 100644
--- a/tcg/tcg-op-ldst.c
+++ b/tcg/tcg-op-ldst.c
@@ -39,7 +39,7 @@ static void check_max_alignment(unsigned a_bits)
      * The requested alignment cannot overlap the TLB flags.
      * FIXME: Must keep the count up-to-date with "exec/cpu-all.h".
      */
-    tcg_debug_assert(a_bits + 6 <= tcg_ctx->page_bits);
+    tcg_debug_assert(a_bits + 5 <= tcg_ctx->page_bits);
 #endif
 }