From patchwork Thu Aug 22 07:13:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 13772801 Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D1C0417E01A; Thu, 22 Aug 2024 07:14:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=93.17.235.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724310846; cv=none; b=LLT9MgZ7GrwjkZo9esxNXjAX85iQInbFeLh/C4n54wO66kGj6LVoZqkk7yoc4XRGG2KD9aOw6XEZOV51YiU/DfYOuVqvGtfbGyIRBg3+wCI09sHRYWBBjNeBCwLqSy9TL5oV9B62CrDg9VvsAI4OJzh101PDKTWoBXpwTrSYzps= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724310846; c=relaxed/simple; bh=6H7T4OtghNGIKLYUW15IDF5ngiuRyCUv+bUYaWIueQo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lG9D7Wx0d4QfT+xrwYeVBBD7SkYqYnAh5j4KI30FnKfU7iMP1WBtn5BpZjdH6SYq1p0esf/U6bBFtoBoMiLO5NdIp3BiCgv2xtNiIun7RLdnJt6m9IVQWCdQikvZsyl988F3XSng3alPrvTak0vBmPbfIQjkdon25byuxNi2egI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=csgroup.eu; spf=pass smtp.mailfrom=csgroup.eu; arc=none smtp.client-ip=93.17.235.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=csgroup.eu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=csgroup.eu Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4WqDvH1Lg0z9sSY; Thu, 22 Aug 2024 09:13:31 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HrgTAL98uEO3; Thu, 22 Aug 2024 09:13:31 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4WqDvH0Z6sz9sSH; Thu, 22 Aug 2024 09:13:31 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 018F68B77D; Thu, 22 Aug 2024 09:13:31 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 4Xoul67SwRYa; Thu, 22 Aug 2024 09:13:30 +0200 (CEST) Received: from PO20335.idsi0.si.c-s.fr (PO16920.IDSI0.si.c-s.fr [192.168.232.181]) by messagerie.si.c-s.fr (Postfix) with ESMTP id EC72A8B763; Thu, 22 Aug 2024 09:13:29 +0200 (CEST) From: Christophe Leroy To: Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Andy Lutomirski , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , "Theodore Ts'o" , "Jason A. Donenfeld" , Arnd Bergmann , Andrew Morton , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Vincenzo Frascino , Shuah Khan Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH v2 08/17] powerpc: Add little endian variants of LWZX_BE and STWX_BE Date: Thu, 22 Aug 2024 09:13:16 +0200 Message-ID: X-Mailer: git-send-email 2.44.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1724310794; l=906; i=christophe.leroy@csgroup.eu; s=20211009; h=from:subject:message-id; bh=6H7T4OtghNGIKLYUW15IDF5ngiuRyCUv+bUYaWIueQo=; b=hNY+LGr2Rcm1FruX/Pi4TXpEpJ3NK0USBgOJB07umxT2MU3l11Qrgf0kRkvOEtaehX9BImGb3 aPlCV4CucUaA5+VROpxaJP9JVn4u1j8nncN+Akg3rm5xpKRsYhQxEMu X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= To support getrandom in VDSO which is based on little endian storage, add macros equivalent to LWZX_BE and STWX_BE for little endian accesses. Put them outside of __powerpc64__ #ifdef so that they can also be used for PPC32. Signed-off-by: Christophe Leroy --- arch/powerpc/include/asm/asm-compat.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h index 2bc53c646ccd..6e53a80917ef 100644 --- a/arch/powerpc/include/asm/asm-compat.h +++ b/arch/powerpc/include/asm/asm-compat.h @@ -61,4 +61,12 @@ #endif +#ifdef __BIG_ENDIAN__ +#define LWZX_LE stringify_in_c(lwbrx) +#define STWX_LE stringify_in_c(stwbrx) +#else +#define LWZX_LE stringify_in_c(lwzx) +#define STWX_LE stringify_in_c(stwx) +#endif + #endif /* _ASM_POWERPC_ASM_COMPAT_H */