From 3a5f8c5f788d68e325d9fe3c26f4df5a5aee838a Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 11 Oct 2005 19:40:20 +1000 Subject: [PATCH] powerpc: make iSeries boot again On ARCH=ppc64 we were getting htab_hash_mask recalculated to the correct value for our particular machine by accident. In the merge tree, that code was commented out, so htab_hash_mask was being corrupted. We now set ppc64_pft_size instead which gets htab_has_mask calculated correctly for us later. We should put an ibm,pft-size property in the device tree at some point. Also set -mno-minimal-toc in some makefiles. Allow iSeries to configure PROC_DEVICETREE. Signed-off-by: Stephen Rothwell --- arch/powerpc/Kconfig | 2 +- arch/powerpc/mm/Makefile | 4 ++++ arch/powerpc/platforms/iseries/Makefile | 2 ++ arch/powerpc/platforms/iseries/setup.c | 6 +----- 4 files changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 330376b74c8..cd55c9b0f7e 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -570,7 +570,7 @@ config SCHED_SMT config PROC_DEVICETREE bool "Support for Open Firmware device tree in /proc" - depends on PPC_OF && PROC_FS + depends on (PPC_OF || PPC_ISERIES) && PROC_FS help This option adds a device-tree directory under /proc which contains an image of the device tree that the kernel copies from Open diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile index 612bc4ec72b..14b2ffb6c2d 100644 --- a/arch/powerpc/mm/Makefile +++ b/arch/powerpc/mm/Makefile @@ -2,6 +2,10 @@ # Makefile for the linux ppc-specific parts of the memory manager. # +ifeq ($(CONFIG_PPC64),y) +EXTRA_CFLAGS += -mno-minimal-toc +endif + obj-y := fault.o mem.o lmb.o obj-$(CONFIG_PPC32) += init_32.o pgtable_32.o mmu_context_32.o \ tlb_32.o diff --git a/arch/powerpc/platforms/iseries/Makefile b/arch/powerpc/platforms/iseries/Makefile index 18bf4007756..127b465308b 100644 --- a/arch/powerpc/platforms/iseries/Makefile +++ b/arch/powerpc/platforms/iseries/Makefile @@ -1,3 +1,5 @@ +EXTRA_CFLAGS += -mno-minimal-toc + obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \ hvcall.o proc.o htab.o iommu.o misc.o obj-$(CONFIG_PCI) += pci.o irq.o vpdinfo.o diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index c3e532b766e..b6cf050a8c2 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -430,7 +430,6 @@ static void __init build_iSeries_Memory_Map(void) u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize; u32 nextPhysChunk; u32 hptFirstChunk, hptLastChunk, hptSizeChunks, hptSizePages; - u32 num_ptegs; u32 totalChunks,moreChunks; u32 currChunk, thisChunk, absChunk; u32 currDword; @@ -493,10 +492,7 @@ static void __init build_iSeries_Memory_Map(void) printk("HPT absolute addr = %016lx, size = %dK\n", chunk_to_addr(hptFirstChunk), hptSizeChunks * 256); - /* Fill in the hashed page table hash mask */ - num_ptegs = hptSizePages * - (PAGE_SIZE / (sizeof(hpte_t) * HPTES_PER_GROUP)); - htab_hash_mask = num_ptegs - 1; + ppc64_pft_size = __ilog2(hptSizePages * PAGE_SIZE); /* * The actual hashed page table is in the hypervisor, -- 2.39.2