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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" <f4bug@amsat.org>
Subject: [PULL 16/18] target/ppc: fix vextu[bhw][lr]x helpers
Date: Fri, 27 Aug 2021 17:09:44 +1000	[thread overview]
Message-ID: <20210827070946.219970-17-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>

These helpers shouldn't depend on the host endianness, as they only use
shifts, ands, and int128_* methods.

Fixes: 60caf2216bf0 ("target-ppc: add vextu[bhw][lr]x instructions")
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210826141446.2488609-3-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 target/ppc/int_helper.c | 38 ++++++++++----------------------------
 1 file changed, 10 insertions(+), 28 deletions(-)

diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index efa833ef64..c2d3248d1e 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -1492,34 +1492,16 @@ void helper_vlogefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
     }
 }
 
-#if defined(HOST_WORDS_BIGENDIAN)
-#define VEXTU_X_DO(name, size, left)                                \
-    target_ulong glue(helper_, name)(target_ulong a, ppc_avr_t *b)  \
-    {                                                               \
-        int index;                                                  \
-        if (left) {                                                 \
-            index = (a & 0xf) * 8;                                  \
-        } else {                                                    \
-            index = ((15 - (a & 0xf) + 1) * 8) - size;              \
-        }                                                           \
-        return int128_getlo(int128_rshift(b->s128, index)) &        \
-            MAKE_64BIT_MASK(0, size);                               \
-    }
-#else
-#define VEXTU_X_DO(name, size, left)                                \
-    target_ulong glue(helper_, name)(target_ulong a, ppc_avr_t *b)  \
-    {                                                               \
-        int index;                                                  \
-        if (left) {                                                 \
-            index = ((15 - (a & 0xf) + 1) * 8) - size;              \
-        } else {                                                    \
-            index = (a & 0xf) * 8;                                  \
-        }                                                           \
-        return int128_getlo(int128_rshift(b->s128, index)) &        \
-            MAKE_64BIT_MASK(0, size);                               \
-    }
-#endif
-
+#define VEXTU_X_DO(name, size, left)                            \
+target_ulong glue(helper_, name)(target_ulong a, ppc_avr_t *b)  \
+{                                                               \
+    int index = (a & 0xf) * 8;                                  \
+    if (left) {                                                 \
+        index = 128 - index - size;                             \
+    }                                                           \
+    return int128_getlo(int128_rshift(b->s128, index)) &        \
+        MAKE_64BIT_MASK(0, size);                               \
+}
 VEXTU_X_DO(vextublx,  8, 1)
 VEXTU_X_DO(vextuhlx, 16, 1)
 VEXTU_X_DO(vextuwlx, 32, 1)
-- 
2.31.1



  parent reply	other threads:[~2021-08-27  7:28 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 ` David Gibson [this message]
2021-08-27  7:09 ` [PULL 17/18] include/qemu/int128.h: introduce bswap128s David Gibson
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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