From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: jniethe5@gmail.com, qemu-ppc@nongnu.org, bgray@linux.ibm.com
Subject: [PATCH 6/7] tcg/ppc: Disable USE_REG_TB for Power v3.1
Date: Fri, 4 Aug 2023 14:33:54 -0700 [thread overview]
Message-ID: <20230804213355.294443-7-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230804213355.294443-1-richard.henderson@linaro.org>
With Power v3.1, we have pc-relative addressing and so
do not require a register holding the current TB.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/ppc/tcg-target.c.inc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index e8eced7cf3..5b243b2353 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -83,7 +83,7 @@
#define TCG_VEC_TMP2 TCG_REG_V1
#define TCG_REG_TB TCG_REG_R31
-#define USE_REG_TB (TCG_TARGET_REG_BITS == 64)
+#define USE_REG_TB (TCG_TARGET_REG_BITS == 64 && !have_isa_3_10)
/* Shorthand for size of a pointer. Avoid promotion to unsigned. */
#define SZP ((int)sizeof(void *))
--
2.34.1
next prev parent reply other threads:[~2023-08-04 21:35 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-04 21:33 [PATCH for-8.2 0/7] tcg/ppc: Support power10 prefixed instructions Richard Henderson
2023-08-04 21:33 ` [PATCH 1/7] tcg/ppc: Untabify tcg-target.c.inc Richard Henderson
2023-08-04 21:33 ` [PATCH 2/7] tcg/ppc: Use PADDI in tcg_out_movi Richard Henderson
2023-08-07 3:53 ` Jordan Niethe
2023-08-07 21:26 ` Richard Henderson
2023-08-04 21:33 ` [PATCH 3/7] tcg/ppc: Use prefixed instructions in tcg_out_mem_long Richard Henderson
2023-08-07 3:51 ` Jordan Niethe
2023-08-04 21:33 ` [PATCH 4/7] tcg/ppc: Use PLD in tcg_out_movi for constant pool Richard Henderson
2023-08-04 21:33 ` [PATCH 5/7] tcg/ppc: Use prefixed instructions in tcg_out_dupi_vec Richard Henderson
2023-08-04 21:33 ` Richard Henderson [this message]
2023-08-06 11:58 ` [PATCH 6/7] tcg/ppc: Disable USE_REG_TB for Power v3.1 Nicholas Piggin
2023-08-06 13:45 ` Richard Henderson
2023-08-04 21:33 ` [PATCH 7/7] tcg/ppc: Use prefixed instructions for tcg_out_goto_tb Richard Henderson
2023-08-06 12:55 ` Nicholas Piggin
2023-08-06 14:13 ` Richard Henderson
2023-08-07 1:51 ` Nicholas Piggin
2023-08-07 7:29 ` Nicholas Piggin
2023-08-07 9:38 ` Nicholas Piggin
2023-08-07 4:08 ` Jordan Niethe
2023-08-06 11:55 ` [PATCH for-8.2 0/7] tcg/ppc: Support power10 prefixed instructions Nicholas Piggin
2023-08-06 14:22 ` Richard Henderson
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