From ca9153a3a2a7556d091dfe080e42b0e67881fff6 Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Thu, 11 Dec 2008 04:55:41 +0300 Subject: powerpc/44x: Support 16K/64K base page sizes on 44x This adds support for 16k and 64k page sizes on PowerPC 44x processors. The PGDIR table is much smaller than a page when using 16k or 64k pages (512 and 32 bytes respectively) so we allocate the PGDIR with kzalloc() instead of __get_free_pages(). One PTE table covers rather a large memory area when using 16k or 64k pages (32MB or 512MB respectively), so we can easily put FIXMAP and PKMAP in the area covered by one PTE table. Signed-off-by: Yuri Tikhonov Signed-off-by: Vladimir Panfilov Signed-off-by: Ilya Yanok Acked-by: Josh Boyer Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/asm-offsets.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/kernel/asm-offsets.c') diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index c05ab1d3e62..661d07d2146 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -380,6 +380,10 @@ int main(void) DEFINE(VCPU_FAULT_DEAR, offsetof(struct kvm_vcpu, arch.fault_dear)); DEFINE(VCPU_FAULT_ESR, offsetof(struct kvm_vcpu, arch.fault_esr)); #endif +#ifdef CONFIG_44x + DEFINE(PGD_T_LOG2, PGD_T_LOG2); + DEFINE(PTE_T_LOG2, PTE_T_LOG2); +#endif return 0; } -- cgit v1.2.3