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2008-06-10mm, x86: shrink_active_range() should check allYinghai Lu
Now we are using register_e820_active_regions() instead of add_active_range() directly. So end_pfn could be different between the value in early_node_map to node_end_pfn. So we need to make shrink_active_range() smarter. shrink_active_range() is a generic MM function in mm/page_alloc.c but it is only used on 32-bit x86. Should we move it back to some file in arch/x86? Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-10x86: remove all active memory ranges before registering them again after ↵Yinghai Lu
trimming - 64bit this way we keep the early_node_map all right. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-09Revert "x86, 32-bit: SRAT fix"Ingo Molnar
This reverts commit ea57a5a6db8961de35cd1a4a80d8e01ee4307973, a better fix will be merged.
2008-06-06x86, 32-bit: SRAT fixIngo Molnar
we were adding reserved BIOS ranges as general memory as well => not good. solves this crash: [ 20.068075] hostname used greatest stack depth: 6464 bytes left [ 20.121404] BUG: unable to handle kernel <1>BUG: unable to handle kernel NULL pointer dereference at 00000b8c [ 20.121404] IP: [<c01160ae>] kmap_atomic_prot+0x2d/0x1c3 [ 20.121404] *pdpt = 00000000367eb001 *pde = 0000000000000000 [ 20.121404] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 20.121404] [ 20.121404] Pid: 2061, comm: rc.sysinit Not tainted (2.6.26-rc3 #2440) [ 20.121404] EIP: 0060:[<c01160ae>] EFLAGS: 00010206 CPU: 0 [ 20.121404] EIP is at kmap_atomic_prot+0x2d/0x1c3 Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-05x86: linked list of setup_data for i386Huang, Ying
This patch adds linked list of struct setup_data supported for i386. Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-05x86: extract common part of head32.c and head64.c into head.cHuang, Ying
This patch extracts the common part of head32.c and head64.c into head.c. Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-05x86: reserve EFI memory map with reserve_earlyHuang, Ying
This patch reserves the EFI memory map with reserve_early(). Because EFI memory map is allocated by bootloader, if it is not reserved by reserved_early(), it may be overwritten through address returned by find_e820_area(). Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-05x86: reserve highmem pages via reserve_earlyHuang, Ying
This patch makes early reserved highmem pages become reserved pages. This can be used for highmem pages allocated by bootloader such as EFI memory map, linked list of setup_data, etc. Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-05x86: split out common code into find_overlapped_early()Huang, Ying
This patch clean up reserve_early() family functions by extracting the common part of reserve_early(), free_early() and bad_addr() into find_overlapped_early(). Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-04x86: e820 max_arch_pfn typo fix for 64 bitYinghai Lu
should use right shift Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-04x86: make 32-bit use e820_register_active_regions()Yinghai Lu
this way 32-bit is more similar to 64-bit, and smarter e820 and numa. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-04x86: move e820_register_active() to e820.cYinghai Lu
to prepare 32-bit to use it. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-04x86, numa, 32-bit: make sure get we kva spaceYinghai Lu
when 1/3 user/kernel split is used, and less memory is installed, or if we have a big hole below 4g, max_low_pfn is still using 3g-128m try to go down from max_low_pfn until we get it. otherwise will panic. need to make 32-bit code to use register_e820_active_regions ... later. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-04x86: early check if a system is numaqYinghai Lu
so we could fall back to one node numa. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-04x86: change propagate_e820_map() back to find_max_pfn(), 32-bit, fixYinghai Lu
add memory_present() calls for sparse and non-numa. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86: mp build fixIngo Molnar
fix: drivers/built-in.o: In function `acpi_pci_irq_enable': : undefined reference to `mp_config_acpi_gsi' Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86: clean up max_pfn_mapped usage - 64-bitYinghai Lu
on 64-bit we only get valid max_pfn_mapped after init_memory_mapping(). Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86: clean up max_pfn_mapped usage - 32-bitYinghai Lu
on 32-bit in head_32.S after initial page table is done, we get initial max_pfn_mapped, and then kernel_physical_mapping_init will give us a final one. We need to use that to make sure find_e820_area will get valid addresses for boot_map and for NODE_DATA(0) on numa32. XEN PV and lguest may need to assign max_pfn_mapped too. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86, numa, 32-bit: avoid clash between ramdisk and kvaYinghai Lu
use find_e820_area to get address space... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86: update mptableYinghai Lu
make mptable to be consistent with acpi routing, so we could: 1. kexec kernel with acpi=off 2. work around BIOSes where acpi routing is working, but mptable is not right, so can use kernel/kexec to start other OSes that don't have good acpi support. command line: update_mptable Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86, numa, 32-bit: print out debug info on all kvasYinghai Lu
also fix the print out of node_remap_end_vaddr Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86, 32-bit: change propagate_e820_map() back to find_max_pfn()Yinghai Lu
we don't need to call memory_present that early. numa and sparse will call memory_present later and might even fail, it will call memory_present for the full range. also for sparse it will call alloc_bootmem ... before we set up bootmem. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86: set node_remap_size[0] in fallback pathYinghai Lu
... otherwise alloc_remap will not get node_mem_map from kva area, and alloc_node_mem_map has to alloc_bootmem_node to get mem_map. It will use two low address copies ... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86, numa, 32-bit: increase max_elements to 1024Yinghai Lu
so every element will represent 64M instead of 256M. AMD opteron could have HW memory hole remapping, so could have [0, 8g + 64M) on node0. Reduce element size to 64M to keep that on node 0 Later we need to use find_e820_area() to allocate memory_node_map like on 64-bit. But need to move memory_present out of populate_mem_map... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86 mpparse: build fixIngo Molnar
fix this build bug: drivers/acpi/pci_irq.c: In function 'acpi_pci_irq_enable': drivers/acpi/pci_irq.c:574: error: implicit declaration of function 'mp_config_acpi_gsi' Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-02x86: remove duplicated e820 func in setup.hYinghai Lu
we already have them in e820.h Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-31x86: 32bit numa srat fix early_ioremap leakYinghai Lu
on two node system (16g RAM) with numa config I got this crash: get_memcfg_from_srat: assigning address to rsdp RSD PTR v0 [ACPIAM] ACPI: Too big length in RSDT: 92 failed to get NUMA memory information from SRAT table NUMA - single node, flat memory mode Node: 0, start_pfn: 0, end_pfn: 153 Setting physnode_map array to node 0 for pfns: 0 ... Pid: 0, comm: swapper Not tainted 2.6.26-rc4 #4 [<80b41289>] hlt_loop+0x0/0x3 [<8011efa0>] ? alloc_remap+0x50/0x70 [<8079e32e>] alloc_node_mem_map+0x5e/0xa0 [<8012e77b>] ? printk+0x1b/0x20 [<80b590f6>] free_area_init_node+0xc6/0x470 [<80b588fc>] ? __alloc_bootmem_node+0x2c/0x50 [<80b58ad8>] ? find_min_pfn_for_node+0x38/0x70 [<8012e77b>] ? printk+0x1b/0x20 [<80b597c4>] free_area_init_nodes+0x254/0x2d0 [<80b544d7>] zone_sizes_init+0x97/0xa0 [<80b48a03>] setup_arch+0x383/0x530 [<8012e77b>] ? printk+0x1b/0x20 [<80b41aa4>] start_kernel+0x64/0x350 [<80b412d8>] i386_start_kernel+0x8/0x10 ======================= this patch increases the acpi table limit to 32. Also match early_ioremap() with early_iounmap(). Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-31x86: extend e820 early_res support 32bit -fix #5Yinghai Lu
reserve early numa kva, so it will not clash with new RAMDISK Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-31x86: extend e820 early_res support 32bit -fix #4Yinghai Lu
reserve_early pgdata for 32bit numa Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-31x86: extend e820 early_res support 32bit -fix #3Yinghai Lu
introduce init_pg_table_start, so xen PV could specify the value. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-27x86: extend e820 ealy_res support 32bit - fix #2Yinghai Lu
remove extra -1 in reseve_early calling panic if can not find space for new RAMDISK Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: fix mpparse falloutThomas Gleixner
UP builds with LOCAL_APIC=y and IO_APIC=n fail with a missing reference to mp_bus_not_pci. Distangle the mpparse code some more and move the ioapic specific bus check into a separate function. This code needs sume urgent un#ifdef surgery all over the place. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: allow MPPARSE to be deselected in SMP configsAlexey Starikovskiy
2008-05-25x86: move mp_bus_not_pci from mpparse.cAlexey Starikovskiy
2008-05-25x86: mp_bus_id_to_pci_bus is not neededAlexey Starikovskiy
2008-05-25x86: move smp_found_configAlexey Starikovskiy
2008-05-25x86: move pic_mode to apic_32.cAlexey Starikovskiy
2008-05-25x86: Set pic_mode only if local apic code is presentAlexey Starikovskiy
2008-05-25x86: move e820_mark_nosave_regions to e820.cYinghai Lu
and make e820_mark_nosave_regions to take limit_pfn to use max_low_pfn for 32bit and end_pfn for 64bit Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: fix mpparse/acpi interactionAlexey Starikovskiy
Sitsofe Wheeler reported boot problems on linux-next. It looks like the same issue as found by Soeren Sandman in 7575217f656a93, "x86: initialize all fields of mp_irqs[mp_irq_entries]". But his fix is also not complete, as dstapic is used before it assigned. Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com> Bisected-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: initialize all fields of mp_irqs[mp_irq_entries]Soeren Sandmann
Commit "x86: make config_irqsrc not MPspec specific" introduced some uses of uninitialized fields in mp_config_acpi_legacy_irqs(). I need the following patch to get sched-devel/master to boot. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: make config_irqsrc not MPspec specificAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: make struct config_ioapic not MPspec specificAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: make mp_ioapic_routing definition localAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: complete move ACPI from mpparse.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: move es7000_plat out of mpparse.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: cleanup print out for mptableYinghai Lu
the new output is: MPTABLE: OEM ID: SUN MPTABLE: Product ID: 4600 M2 MPTABLE: APIC at: 0x instead of it all in one line with <6> and double Product ID... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: include pci.h in e820_64.cThomas Gleixner
global pci_mem_start needs a declaration. include pci.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: fix shadow variables of global end_pnf in e820_64.cThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: move mp_ioapic_routing to mpparse and make it staticThomas Gleixner
mpparse is the only user of mp_ioapic_routing. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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