From: David Gibson <david@gibson.dropbear.id.au>
To: peter.maydell@linaro.org, groug@kaod.org
Cc: "Matheus Ferst" <matheus.ferst@eldorado.org.br>,
"David Gibson" <david@gibson.dropbear.id.au>,
qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: [PULL 17/18] include/qemu/int128.h: introduce bswap128s
Date: Fri, 27 Aug 2021 17:09:45 +1000 [thread overview]
Message-ID: <20210827070946.219970-18-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20210827070946.219970-1-david@gibson.dropbear.id.au>
From: Matheus Ferst <matheus.ferst@eldorado.org.br>
Changes the current bswap128 implementation to use __builtin_bswap128
when available, adds a bswap128 implementation for !CONFIG_INT128
builds, and introduces bswap128s based on bswap128.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210826145656.2507213-2-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
include/qemu/int128.h | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/include/qemu/int128.h b/include/qemu/int128.h
index 17436d851d..2ac0746426 100644
--- a/include/qemu/int128.h
+++ b/include/qemu/int128.h
@@ -1,9 +1,9 @@
#ifndef INT128_H
#define INT128_H
-#ifdef CONFIG_INT128
#include "qemu/bswap.h"
+#ifdef CONFIG_INT128
typedef __int128_t Int128;
static inline Int128 int128_make64(uint64_t a)
@@ -155,7 +155,11 @@ static inline void int128_subfrom(Int128 *a, Int128 b)
static inline Int128 bswap128(Int128 a)
{
+#if __has_builtin(__builtin_bswap128)
+ return __builtin_bswap128(a);
+#else
return int128_make128(bswap64(int128_gethi(a)), bswap64(int128_getlo(a)));
+#endif
}
#else /* !CONFIG_INT128 */
@@ -350,5 +354,16 @@ static inline void int128_subfrom(Int128 *a, Int128 b)
*a = int128_sub(*a, b);
}
+static inline Int128 bswap128(Int128 a)
+{
+ return int128_make128(bswap64(a.hi), bswap64(a.lo));
+}
+
#endif /* CONFIG_INT128 */
+
+static inline void bswap128s(Int128 *s)
+{
+ *s = bswap128(*s);
+}
+
#endif /* INT128_H */
--
2.31.1
next prev parent reply other threads:[~2021-08-27 7:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-27 7:09 [PULL 00/18] ppc-for-6.2 queue 20210827 David Gibson
2021-08-27 7:09 ` [PULL 01/18] xive: Remove extra '0x' prefix in trace events David Gibson
2021-08-27 7:09 ` [PULL 02/18] spapr_pci: Fix leak in spapr_phb_vfio_get_loc_code() with g_autofree David Gibson
2021-08-27 7:09 ` [PULL 03/18] target/ppc: divided mmu_helper.c in 2 files David Gibson
2021-08-27 7:09 ` [PULL 04/18] target/ppc: moved ppc_store_sdr1 to mmu_common.c David Gibson
2021-08-27 7:09 ` [PULL 05/18] target/ppc: moved store_40x_sler to helper_regs.c David Gibson
2021-08-27 7:09 ` [PULL 06/18] ppc/pnv: update skiboot to commit 820d43c0a775 David Gibson
2021-08-27 7:09 ` [PULL 07/18] ppc: Add a POWER10 DD2 CPU David Gibson
2021-08-27 7:09 ` [PULL 08/18] ppc/pnv: Change the POWER10 machine to support DD2 only David Gibson
2021-08-27 7:09 ` [PULL 09/18] ppc/pnv: powerpc_excp: Do not discard HDECR exception when entering power-saving mode David Gibson
2021-08-27 7:09 ` [PULL 10/18] ppc/pnv: Use a simple incrementing index for the chip-id David Gibson
2021-08-27 7:09 ` [PULL 11/18] ppc/pnv: Distribute RAM among the chips David Gibson
2021-08-27 7:09 ` [PULL 12/18] ppc/pnv: add a chip topology index for POWER10 David Gibson
2021-08-27 7:09 ` [PULL 13/18] ppc/xive: Export PQ get/set routines David Gibson
2021-08-27 7:09 ` [PULL 14/18] ppc/xive: Export xive_presenter_notify() David Gibson
2021-08-27 7:09 ` [PULL 15/18] include/qemu/int128.h: define struct Int128 according to the host endianness David Gibson
2021-08-27 7:09 ` [PULL 16/18] target/ppc: fix vextu[bhw][lr]x helpers David Gibson
2021-08-27 7:09 ` David Gibson [this message]
2021-08-27 7:09 ` [PULL 18/18] target/ppc: fix vector registers access in gdbstub for little-endian David Gibson
2021-08-28 14:13 ` [PULL 00/18] ppc-for-6.2 queue 20210827 Peter Maydell
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