From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755807Ab0KVMoi (ORCPT ); Mon, 22 Nov 2010 07:44:38 -0500 Received: from caramon.arm.linux.org.uk ([78.32.30.218]:41531 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755510Ab0KVMoh (ORCPT ); Mon, 22 Nov 2010 07:44:37 -0500 Date: Mon, 22 Nov 2010 12:43:53 +0000 From: Russell King - ARM Linux To: Catalin Marinas Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 01/20] ARM: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* Message-ID: <20101122124353.GB31227@n2100.arm.linux.org.uk> References: <1289584840-18097-1-git-send-email-catalin.marinas@arm.com> <1289584840-18097-2-git-send-email-catalin.marinas@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1289584840-18097-2-git-send-email-catalin.marinas@arm.com> User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 12, 2010 at 06:00:21PM +0000, Catalin Marinas wrote: > diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c > index 8c19595..40b386c 100644 > --- a/arch/arm/kernel/smp.c > +++ b/arch/arm/kernel/smp.c > @@ -78,7 +78,7 @@ static inline void identity_mapping_add(pgd_t *pgd, unsigned long start, > if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale()) > prot |= PMD_BIT4; > > - for (addr = start & PGDIR_MASK; addr < end;) { > + for (addr = start & PMD_MASK; addr < end;) { > pmd = pmd_offset(pgd + pgd_index(addr), addr); > pmd[0] = __pmd(addr | prot); > addr += SECTION_SIZE; > @@ -95,7 +95,7 @@ static inline void identity_mapping_del(pgd_t *pgd, unsigned long start, > unsigned long addr; > pmd_t *pmd; > > - for (addr = start & PGDIR_MASK; addr < end; addr += PGDIR_SIZE) { > + for (addr = start & PMD_MASK; addr < end; addr += PMD_SIZE) { > pmd = pmd_offset(pgd + pgd_index(addr), addr); > pmd[0] = __pmd(0); > pmd[1] = __pmd(0); ... > @@ -1068,12 +1068,12 @@ void setup_mm_for_reboot(char mode) > base_pmdval |= PMD_BIT4; > > for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++, pgd++) { > - unsigned long pmdval = (i << PGDIR_SHIFT) | base_pmdval; > + unsigned long pmdval = (i << PMD_SHIFT) | base_pmdval; > pmd_t *pmd; > > - pmd = pmd_off(pgd, i << PGDIR_SHIFT); > + pmd = pmd_off(pgd, i << PMD_SHIFT); > pmd[0] = __pmd(pmdval); > - pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1))); > + pmd[1] = __pmd(pmdval + (1 << (PMD_SHIFT - 1))); > flush_pmd_entry(pmd); > } > This lot really does need unifying - and in any case this last addition should be using 'SECTION SIZE' not something related to PMD shifts. Strangely, it's something I've done over the weekend... From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Mon, 22 Nov 2010 12:43:53 +0000 Subject: [PATCH v2 01/20] ARM: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* In-Reply-To: <1289584840-18097-2-git-send-email-catalin.marinas@arm.com> References: <1289584840-18097-1-git-send-email-catalin.marinas@arm.com> <1289584840-18097-2-git-send-email-catalin.marinas@arm.com> Message-ID: <20101122124353.GB31227@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Nov 12, 2010 at 06:00:21PM +0000, Catalin Marinas wrote: > diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c > index 8c19595..40b386c 100644 > --- a/arch/arm/kernel/smp.c > +++ b/arch/arm/kernel/smp.c > @@ -78,7 +78,7 @@ static inline void identity_mapping_add(pgd_t *pgd, unsigned long start, > if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale()) > prot |= PMD_BIT4; > > - for (addr = start & PGDIR_MASK; addr < end;) { > + for (addr = start & PMD_MASK; addr < end;) { > pmd = pmd_offset(pgd + pgd_index(addr), addr); > pmd[0] = __pmd(addr | prot); > addr += SECTION_SIZE; > @@ -95,7 +95,7 @@ static inline void identity_mapping_del(pgd_t *pgd, unsigned long start, > unsigned long addr; > pmd_t *pmd; > > - for (addr = start & PGDIR_MASK; addr < end; addr += PGDIR_SIZE) { > + for (addr = start & PMD_MASK; addr < end; addr += PMD_SIZE) { > pmd = pmd_offset(pgd + pgd_index(addr), addr); > pmd[0] = __pmd(0); > pmd[1] = __pmd(0); ... > @@ -1068,12 +1068,12 @@ void setup_mm_for_reboot(char mode) > base_pmdval |= PMD_BIT4; > > for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++, pgd++) { > - unsigned long pmdval = (i << PGDIR_SHIFT) | base_pmdval; > + unsigned long pmdval = (i << PMD_SHIFT) | base_pmdval; > pmd_t *pmd; > > - pmd = pmd_off(pgd, i << PGDIR_SHIFT); > + pmd = pmd_off(pgd, i << PMD_SHIFT); > pmd[0] = __pmd(pmdval); > - pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1))); > + pmd[1] = __pmd(pmdval + (1 << (PMD_SHIFT - 1))); > flush_pmd_entry(pmd); > } > This lot really does need unifying - and in any case this last addition should be using 'SECTION SIZE' not something related to PMD shifts. Strangely, it's something I've done over the weekend...