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[61.68.184.39]) by smtp.gmail.com with ESMTPSA id u7sm53960083pfm.96.2019.07.29.07.13.44 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 29 Jul 2019 07:13:46 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 08/18] powerpc/64s/exception: Add the virt variant of the denorm interrupt handler Date: Tue, 30 Jul 2019 00:12:37 +1000 Message-Id: <20190729141247.26762-9-npiggin@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190729141247.26762-1-npiggin@gmail.com> References: <20190729141247.26762-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" All other virt handlers have the prolog code in the virt vector rather than branch to the real vector. Follow this pattern in the denorm virt handler. Signed-off-by: Nicholas Piggin --- arch/powerpc/kernel/exceptions-64s.S | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 94f885c58022..1c07b5fc6692 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1853,7 +1853,11 @@ EXC_REAL_END(denorm_exception_hv, 0x1500, 0x100) #ifdef CONFIG_PPC_DENORMALISATION EXC_VIRT_BEGIN(denorm_exception, 0x5500, 0x100) - b exc_real_0x1500_denorm_exception_hv + INT_HANDLER denorm_exception, 0x1500, 0, 2, 1, EXC_HV, PACA_EXGEN, 1, 0, 0, 0, 0 + mfspr r10,SPRN_HSRR1 + andis. r10,r10,(HSRR1_DENORM)@h /* denorm? */ + bne+ denorm_assist + INT_VIRT_SAVE_SRR_AND_JUMP denorm_common, EXC_HV EXC_VIRT_END(denorm_exception, 0x5500, 0x100) #else EXC_VIRT_NONE(0x5500, 0x100) -- 2.22.0