From mboxrd@z Thu Jan 1 00:00:00 1970 From: cyril@ti.com (Cyril Chemparathy) Date: Sun, 5 Aug 2012 10:29:59 -0400 Subject: [PATCH 09/22] ARM: LPAE: use 64-bit pgd physical address in switch_mm() In-Reply-To: References: <1343775898-28345-1-git-send-email-cyril@ti.com> <1343775898-28345-10-git-send-email-cyril@ti.com> Message-ID: <501E8367.8070907@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 8/4/2012 3:04 AM, Nicolas Pitre wrote: > On Tue, 31 Jul 2012, Cyril Chemparathy wrote: > >> This patch modifies the switch_mm() processor functions to use 64-bit >> addresses. We use u64 instead of phys_addr_t, in order to avoid having config >> dependent register usage when calling into switch_mm assembly code. >> >> The changes in this patch are primarily adjustments for registers used for >> arguments to switch_mm. The few processor definitions that did use the second >> argument have been modified accordingly. >> >> Arguments and calling conventions aside, this patch should be a no-op on v6 >> and non-LPAE v7 processors. > > NAK. > > You just broke all big endian targets, LPAE or not. > Indeed. Thanks. Would C-land word swappery on BE do? Any other ideas on the best approach to this? > > Nicolas > -- Thanks - Cyril