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From: Pierrick Bouvier <pierrick.bouvier@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Paul Durrant" <paul@xen.org>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Harsh Prateek Bora" <harshpb@linux.ibm.com>,
	"Liu Zhiwei" <zhiwei_liu@linux.alibaba.com>,
	"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
	xen-devel@lists.xenproject.org, "Peter Xu" <peterx@redhat.com>,
	alex.bennee@linaro.org, manos.pitsidianakis@linaro.org,
	"Stefano Stabellini" <sstabellini@kernel.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	qemu-ppc@nongnu.org,
	"Richard Henderson" <richard.henderson@linaro.org>,
	kvm@vger.kernel.org, "David Hildenbrand" <david@redhat.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Weiwei Li" <liwei1518@gmail.com>,
	qemu-riscv@nongnu.org,
	"Alistair Francis" <alistair.francis@wdc.com>,
	"Anthony PERARD" <anthony@xenproject.org>,
	"Yoshinori Sato" <ysato@users.sourceforge.jp>,
	"Daniel Henrique Barboza" <danielhb413@gmail.com>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>
Subject: [PATCH v4 05/17] exec/memory.h: make devend_memop "target defines" agnostic
Date: Thu, 13 Mar 2025 09:38:51 -0700	[thread overview]
Message-ID: <20250313163903.1738581-6-pierrick.bouvier@linaro.org> (raw)
In-Reply-To: <20250313163903.1738581-1-pierrick.bouvier@linaro.org>

Will allow to make system/memory.c common later.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
---
 include/exec/memory.h | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index da21e9150b5..069021ac3ff 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -3138,25 +3138,17 @@ address_space_write_cached(MemoryRegionCache *cache, hwaddr addr,
 MemTxResult address_space_set(AddressSpace *as, hwaddr addr,
                               uint8_t c, hwaddr len, MemTxAttrs attrs);
 
-#ifdef COMPILING_PER_TARGET
 /* enum device_endian to MemOp.  */
 static inline MemOp devend_memop(enum device_endian end)
 {
     QEMU_BUILD_BUG_ON(DEVICE_HOST_ENDIAN != DEVICE_LITTLE_ENDIAN &&
                       DEVICE_HOST_ENDIAN != DEVICE_BIG_ENDIAN);
 
-#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
-    /* Swap if non-host endianness or native (target) endianness */
-    return (end == DEVICE_HOST_ENDIAN) ? 0 : MO_BSWAP;
-#else
-    const int non_host_endianness =
-        DEVICE_LITTLE_ENDIAN ^ DEVICE_BIG_ENDIAN ^ DEVICE_HOST_ENDIAN;
-
-    /* In this case, native (target) endianness needs no swap.  */
-    return (end == non_host_endianness) ? MO_BSWAP : 0;
-#endif
+    bool big_endian = (end == DEVICE_NATIVE_ENDIAN
+                       ? target_words_bigendian()
+                       : end == DEVICE_BIG_ENDIAN);
+    return big_endian ? MO_BE : MO_LE;
 }
-#endif /* COMPILING_PER_TARGET */
 
 /*
  * Inhibit technologies that require discarding of pages in RAM blocks, e.g.,
-- 
2.39.5



  parent reply	other threads:[~2025-03-13 16:44 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-13 16:38 [PATCH v4 00/17] make system memory API available for common code Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 01/17] exec/tswap: target code can use TARGET_BIG_ENDIAN instead of target_words_bigendian() Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 02/17] exec/tswap: implement {ld, st}.*_p as functions instead of macros Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 03/17] exec/memory_ldst: extract memory_ldst declarations from cpu-all.h Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 04/17] exec/memory_ldst_phys: extract memory_ldst_phys " Pierrick Bouvier
2025-03-13 16:38 ` Pierrick Bouvier [this message]
2025-03-13 16:38 ` [PATCH v4 06/17] codebase: prepare to remove cpu.h from exec/exec-all.h Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 07/17] exec/exec-all: remove dependency on cpu.h Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 08/17] exec/memory-internal: " Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 09/17] exec/ram_addr: " Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 10/17] system/kvm: make kvm_flush_coalesced_mmio_buffer() accessible for common code Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 11/17] exec/ram_addr: call xen_hvm_modified_memory only if xen is enabled Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 12/17] hw/xen: add stubs for various functions Pierrick Bouvier
2025-03-14 13:35   ` Anthony PERARD
2025-03-14 17:20     ` Pierrick Bouvier
2025-03-13 16:38 ` [PATCH v4 13/17] system/physmem: compilation unit is now common to all targets Pierrick Bouvier
2025-03-13 16:39 ` [PATCH v4 14/17] include/exec/memory: extract devend_big_endian from devend_memop Pierrick Bouvier
2025-03-13 16:39 ` [PATCH v4 15/17] include/exec/memory: move devend functions to memory-internal.h Pierrick Bouvier
2025-03-13 16:47   ` Richard Henderson
2025-03-13 16:39 ` [PATCH v4 16/17] system/memory: make compilation unit common Pierrick Bouvier
2025-03-13 16:39 ` [PATCH v4 17/17] system/ioport: " Pierrick Bouvier
2025-03-13 16:42 ` [PATCH v4 00/17] make system memory API available for common code Pierrick Bouvier

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