[v3] tcg: Improve atomicity support

[PATCH v3 46/57] tcg/loongarch64: Use atom_and_align_for_opc

Richard Henderson posted 57 patches 2 years, 9 months ago

Diff against v1 v2 v4 v5
Download mbox

Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Riku Voipio <riku.voipio@iki.fi>, Peter Xu <peterx@redhat.com>, David Hildenbrand <david@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Thomas Huth <thuth@redhat.com>, Song Gao <gaosong@loongson.cn>, Xiaojuan Yang <yangxiaojuan@loongson.cn>, WANG Xuerui <git@xen0n.name>, Aurelien Jarno <aurelien@aurel32.net>, Huacai Chen <chenhuacai@kernel.org>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <Alistair.Francis@wdc.com>, Stefan Weil <sw@weilnetz.de>

There is a newer version of this series

Expand all Fold all

[PATCH v3 46/57] tcg/loongarch64: Use atom_and_align_for_opc

Posted by Richard Henderson 2 years, 9 months ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/loongarch64/tcg-target.c.inc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 62bf823084..43341524f2 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -826,6 +826,8 @@ static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
 typedef struct {
     TCGReg base;
     TCGReg index;
+    MemOp align;
+    MemOp atom;
 } HostAddress;
 
 bool tcg_target_has_memory_bswap(MemOp memop)
@@ -845,7 +847,11 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h,
 {
     TCGLabelQemuLdst *ldst = NULL;
     MemOp opc = get_memop(oi);
-    unsigned a_bits = get_alignment_bits(opc);
+    MemOp a_bits, atom_u;
+
+    a_bits = atom_and_align_for_opc(s, &h->atom, &atom_u, opc,
+                                    MO_ATOM_IFALIGN, false);
+    h->align = a_bits;
 
 #ifdef CONFIG_SOFTMMU
     unsigned s_bits = opc & MO_SIZE;
-- 
2.34.1