From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) (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 7F38A313E0B; Tue, 26 Aug 2025 16:03:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=130.133.4.66 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756224213; cv=none; b=Q0LfE+/2Vk7jGnMLpuYGjOAH5iHaOR4lkQrqZtHw3wbC5ZIKM1a5w+I+qb2sOKRVQCTjky2vuNgZmXkj15ITCaM3hOE7qVAZBsQ5UKyPtARedfmE8jh2PChkDK2KgckCUkkg9uOyFmKT7kLwpGb6G35Vht9Pbk/caendmv92eHo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756224213; c=relaxed/simple; bh=uQmHDK9q2+1h/qYfAzwPyk/3mAwAb0UodjIUz+gh0VE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PuKt63cjvm5c2EBG4Z3lAxIKWlXCJ17vuOBxfQBkkTU0cLF3OIkue8hR36lXX170FP32BT2zv42XXRd/maDEhpyiWREKQqn0SByomILmm6U7aVjld/rNfWJiRdVULzQrQ5yPmHIw4s++pJq1Q8GYKs+qCCe7ob/pX4EnT/dth5k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mkarcher.dialup.fu-berlin.de; spf=pass smtp.mailfrom=zedat.fu-berlin.de; dkim=pass (2048-bit key) header.d=fu-berlin.de header.i=@fu-berlin.de header.b=UimqA6JQ; arc=none smtp.client-ip=130.133.4.66 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mkarcher.dialup.fu-berlin.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zedat.fu-berlin.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fu-berlin.de header.i=@fu-berlin.de header.b="UimqA6JQ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=fu-berlin.de; s=fub01; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:From:Reply-To:Subject:Date: Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=pIjPE6K57qHddsjmMtmeekZnymnbiQUtKQ/iu32UBbs=; t=1756224210; x=1756829010; b=UimqA6JQC3YuQTSetu7o94uZJHCgTa6RWasm4vTDNF4sL1LOaKLTE0euBh0AnT9Ts9BHMN2glc7 mJqJIOo9/sf+bDHRkuSooFf7UUfo5QgLegNcYoFlv8kTpC/gnLSESk876zHoLxRcoZzlK3d0SPI1A 1RlSAr0qzptFtPz3otmp16u9vE2qb5AAJ1At8eL3/PAneKo5fpvezhGpluLjzQD6WyYGZIG3GDSJ+ tyuh7mVVIESXCIZdPqjDjqdapSUq03C/BJIuqkg6sCgROElH9RMh/alExZCYHM1A1gnvN9Z1Hluim ww8PJJgOrBzJVadtJcLFZGwl+1QeO62QMuvg==; Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.98) with esmtps (TLS1.3) tls TLS_AES_256_GCM_SHA384 (envelope-from ) id 1uqw8p-00000000x5E-1xsu; Tue, 26 Aug 2025 18:03:23 +0200 Received: from [89.57.34.174] (helo=Geist14) by inpost2.zedat.fu-berlin.de (Exim 4.98) with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (envelope-from ) id 1uqw8p-00000000c5y-10E4; Tue, 26 Aug 2025 18:03:23 +0200 From: Michael Karcher To: linux-kernel@vger.kernel.org Cc: sparclinux@vger.kernel.org, Michael Karcher , Andreas Larsson , John Paul Adrian Glaubitz , Anthony Yznaga Subject: [PATCH 1/4] sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC Date: Tue, 26 Aug 2025 18:03:03 +0200 Message-ID: <20250826160312.2070-2-kernel@mkarcher.dialup.fu-berlin.de> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826160312.2070-1-kernel@mkarcher.dialup.fu-berlin.de> References: <20250826160312.2070-1-kernel@mkarcher.dialup.fu-berlin.de> Precedence: bulk X-Mailing-List: sparclinux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Original-Sender: kernel@mkarcher.dialup.fu-berlin.de X-ZEDAT-Hint: PO Fixes: cb736fdbb208 ("sparc64: Convert U1copy_{from,to}_user to accurate exception reporting.") Signed-off-by: Michael Karcher --- arch/sparc/lib/U1memcpy.S | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/arch/sparc/lib/U1memcpy.S b/arch/sparc/lib/U1memcpy.S index 635398ec7540..154fbd35400c 100644 --- a/arch/sparc/lib/U1memcpy.S +++ b/arch/sparc/lib/U1memcpy.S @@ -164,17 +164,18 @@ ENTRY(U1_gs_40_fp) retl add %o0, %o2, %o0 ENDPROC(U1_gs_40_fp) -ENTRY(U1_g3_0_fp) - VISExitHalf - retl - add %g3, %o2, %o0 -ENDPROC(U1_g3_0_fp) ENTRY(U1_g3_8_fp) VISExitHalf add %g3, 8, %g3 retl add %g3, %o2, %o0 ENDPROC(U1_g3_8_fp) +ENTRY(U1_g3_16_fp) + VISExitHalf + add %g3, 16, %g3 + retl + add %g3, %o2, %o0 +ENDPROC(U1_g3_16_fp) ENTRY(U1_o2_0_fp) VISExitHalf retl @@ -547,18 +548,18 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */ 62: FINISH_VISCHUNK(o0, f44, f46) 63: UNEVEN_VISCHUNK_LAST(o0, f46, f0) -93: EX_LD_FP(LOAD(ldd, %o1, %f2), U1_g3_0_fp) +93: EX_LD_FP(LOAD(ldd, %o1, %f2), U1_g3_8_fp) add %o1, 8, %o1 subcc %g3, 8, %g3 faligndata %f0, %f2, %f8 - EX_ST_FP(STORE(std, %f8, %o0), U1_g3_8_fp) + EX_ST_FP(STORE(std, %f8, %o0), U1_g3_16_fp) bl,pn %xcc, 95f add %o0, 8, %o0 - EX_LD_FP(LOAD(ldd, %o1, %f0), U1_g3_0_fp) + EX_LD_FP(LOAD(ldd, %o1, %f0), U1_g3_8_fp) add %o1, 8, %o1 subcc %g3, 8, %g3 faligndata %f2, %f0, %f8 - EX_ST_FP(STORE(std, %f8, %o0), U1_g3_8_fp) + EX_ST_FP(STORE(std, %f8, %o0), U1_g3_16_fp) bge,pt %xcc, 93b add %o0, 8, %o0 -- 2.50.1