From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au
Subject: [Qemu-devel] [PATCH 07/13] target/ppc: Split out gen_load_locked
Date: Tue, 26 Jun 2018 09:19:15 -0700 [thread overview]
Message-ID: <20180626161921.27941-8-richard.henderson@linaro.org> (raw)
In-Reply-To: <20180626161921.27941-1-richard.henderson@linaro.org>
Leave only the minimal amount of code within the LDAR macro,
moving the rest of the code into gen_load_locked. Use MO_ALIGN
and remove the explicit call to gen_check_align.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/ppc/translate.c | 35 ++++++++++++++++++-----------------
1 file changed, 18 insertions(+), 17 deletions(-)
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index e751072404..f48fcbeefb 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -3070,23 +3070,24 @@ static void gen_isync(DisasContext *ctx)
#define MEMOP_GET_SIZE(x) (1 << ((x) & MO_SIZE))
-#define LARX(name, memop) \
-static void gen_##name(DisasContext *ctx) \
-{ \
- TCGv t0; \
- TCGv gpr = cpu_gpr[rD(ctx->opcode)]; \
- int len = MEMOP_GET_SIZE(memop); \
- gen_set_access_type(ctx, ACCESS_RES); \
- t0 = tcg_temp_local_new(); \
- gen_addr_reg_index(ctx, t0); \
- if ((len) > 1) { \
- gen_check_align(ctx, t0, (len)-1); \
- } \
- tcg_gen_qemu_ld_tl(gpr, t0, ctx->mem_idx, memop); \
- tcg_gen_mov_tl(cpu_reserve, t0); \
- tcg_gen_mov_tl(cpu_reserve_val, gpr); \
- tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ); \
- tcg_temp_free(t0); \
+static void gen_load_locked(DisasContext *ctx, TCGMemOp memop)
+{
+ TCGv gpr = cpu_gpr[rD(ctx->opcode)];
+ TCGv t0 = tcg_temp_new();
+
+ gen_set_access_type(ctx, ACCESS_RES);
+ gen_addr_reg_index(ctx, t0);
+ tcg_gen_qemu_ld_tl(gpr, t0, ctx->mem_idx, memop | MO_ALIGN);
+ tcg_gen_mov_tl(cpu_reserve, t0);
+ tcg_gen_mov_tl(cpu_reserve_val, gpr);
+ tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
+ tcg_temp_free(t0);
+}
+
+#define LARX(name, memop) \
+static void gen_##name(DisasContext *ctx) \
+{ \
+ gen_load_locked(ctx, memop); \
}
/* lwarx */
--
2.17.1
next prev parent reply other threads:[~2018-06-26 16:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-26 16:19 [Qemu-devel] [PATCH 00/13] target/ppc improve atomic operations Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 01/13] target/ppc: Add do_unaligned_access hook Richard Henderson
2018-06-27 9:09 ` David Gibson
2018-06-27 13:52 ` Richard Henderson
2018-06-28 3:46 ` David Gibson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 02/13] target/ppc: Use atomic load for LQ and LQARX Richard Henderson
2018-06-28 3:49 ` David Gibson
2018-06-28 15:22 ` Richard Henderson
2018-06-29 3:33 ` David Gibson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 03/13] target/ppc: Use atomic store for STQ Richard Henderson
2018-06-28 3:51 ` David Gibson
2018-06-29 3:33 ` David Gibson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 04/13] target/ppc: Use atomic cmpxchg for STQCX Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 05/13] target/ppc: Remove POWERPC_EXCP_STCX Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 06/13] target/ppc: Tidy gen_conditional_store Richard Henderson
2018-06-26 16:19 ` Richard Henderson [this message]
2018-06-26 16:19 ` [Qemu-devel] [PATCH 08/13] target/ppc: Split out gen_ld_atomic Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 09/13] target/ppc: Split out gen_st_atomic Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 10/13] target/ppc: Use MO_ALIGN for EXIWX and ECOWX Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 11/13] target/ppc: Use atomic min/max helpers Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 12/13] target/ppc: Implement the rest of gen_ld_atomic Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 13/13] target/ppc: Implement the rest of gen_st_atomic Richard Henderson
2018-06-29 4:15 ` [Qemu-devel] [PATCH 00/13] target/ppc improve atomic operations David Gibson
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