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* x86, numa, 32-bit: make sure get we kva spaceYinghai Lu2008-06-04
| | | | | | | | | | | | 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>
* x86: early check if a system is numaqYinghai Lu2008-06-04
| | | | | | | 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>
* x86: change propagate_e820_map() back to find_max_pfn(), 32-bit, fixYinghai Lu2008-06-04
| | | | | | | 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>
* x86: mp build fixIngo Molnar2008-06-03
| | | | | | | | | 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>
* x86: clean up max_pfn_mapped usage - 64-bitYinghai Lu2008-06-03
| | | | | | | 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>
* x86: clean up max_pfn_mapped usage - 32-bitYinghai Lu2008-06-03
| | | | | | | | | | | | | | 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>
* x86, numa, 32-bit: avoid clash between ramdisk and kvaYinghai Lu2008-06-03
| | | | | | | 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>
* x86: update mptableYinghai Lu2008-06-03
| | | | | | | | | | | | | | 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>
* x86, numa, 32-bit: print out debug info on all kvasYinghai Lu2008-06-03
| | | | | | | 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>
* x86, 32-bit: change propagate_e820_map() back to find_max_pfn()Yinghai Lu2008-06-03
| | | | | | | | | | | 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>
* x86: set node_remap_size[0] in fallback pathYinghai Lu2008-06-03
| | | | | | | | | ... 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>
* x86, numa, 32-bit: increase max_elements to 1024Yinghai Lu2008-06-03
| | | | | | | | | | | | | 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>
* x86 mpparse: build fixIngo Molnar2008-06-03
| | | | | | | | | 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>
* x86: remove duplicated e820 func in setup.hYinghai Lu2008-06-02
| | | | | | | we already have them in e820.h Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: 32bit numa srat fix early_ioremap leakYinghai Lu2008-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* x86: extend e820 early_res support 32bit -fix #5Yinghai Lu2008-05-31
| | | | | | | 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>
* x86: extend e820 early_res support 32bit -fix #4Yinghai Lu2008-05-31
| | | | | | | reserve_early pgdata for 32bit numa Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: extend e820 early_res support 32bit -fix #3Yinghai Lu2008-05-31
| | | | | | | 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>
* x86: extend e820 ealy_res support 32bit - fix #2Yinghai Lu2008-05-27
| | | | | | | | | | 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>
* x86: fix mpparse falloutThomas Gleixner2008-05-25
| | | | | | | | | | 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>
* x86: allow MPPARSE to be deselected in SMP configsAlexey Starikovskiy2008-05-25
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* x86: move mp_bus_not_pci from mpparse.cAlexey Starikovskiy2008-05-25
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* x86: mp_bus_id_to_pci_bus is not neededAlexey Starikovskiy2008-05-25
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* x86: move smp_found_configAlexey Starikovskiy2008-05-25
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* x86: move pic_mode to apic_32.cAlexey Starikovskiy2008-05-25
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* x86: Set pic_mode only if local apic code is presentAlexey Starikovskiy2008-05-25
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* x86: move e820_mark_nosave_regions to e820.cYinghai Lu2008-05-25
| | | | | | | | | 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>
* x86: fix mpparse/acpi interactionAlexey Starikovskiy2008-05-25
| | | | | | | | | | | | | | | 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>
* x86: initialize all fields of mp_irqs[mp_irq_entries]Soeren Sandmann2008-05-25
| | | | | | | | | 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>
* x86: make config_irqsrc not MPspec specificAlexey Starikovskiy2008-05-25
| | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: make struct config_ioapic not MPspec specificAlexey Starikovskiy2008-05-25
| | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: make mp_ioapic_routing definition localAlexey Starikovskiy2008-05-25
| | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: complete move ACPI from mpparse.cAlexey Starikovskiy2008-05-25
| | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move es7000_plat out of mpparse.cAlexey Starikovskiy2008-05-25
| | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: cleanup print out for mptableYinghai Lu2008-05-25
| | | | | | | | | | | | | | 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>
* x86: include pci.h in e820_64.cThomas Gleixner2008-05-25
| | | | | | | 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>
* x86: fix shadow variables of global end_pnf in e820_64.cThomas Gleixner2008-05-25
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move mp_ioapic_routing to mpparse and make it staticThomas Gleixner2008-05-25
| | | | | | | 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>
* x86: extend e820 ealy_res support 32bit - fixYinghai Lu2008-05-25
| | | | | | | | | | | | use find_e820_area to find addess for new RAMDISK, instead of using ram blindly also print out low ram and bootmap info 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>
* x86: extend e820 ealy_res support 32bitYinghai Lu2008-05-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | move early_res related from e820_64.c to e820.c make edba detection to be done in head32.c remove smp_alloc_memory, because we have fixed trampoline address now. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> arch/x86/kernel/e820.c | 214 ++++++++++++++++++++++++++++++++++++ arch/x86/kernel/e820_64.c | 196 -------------------------------- arch/x86/kernel/head32.c | 76 ++++++++++++ arch/x86/kernel/setup_32.c | 109 +++--------------- arch/x86/kernel/smpboot.c | 17 -- arch/x86/kernel/trampoline.c | 2 arch/x86/mach-voyager/voyager_smp.c | 9 - include/asm-x86/e820.h | 6 + include/asm-x86/e820_64.h | 9 - include/asm-x86/smp.h | 1 arch/x86/kernel/e820.c | 214 ++++++++++++++++++++++++++++++++++++ arch/x86/kernel/e820_64.c | 196 -------------------------------- arch/x86/kernel/head32.c | 76 ++++++++++++ arch/x86/kernel/setup_32.c | 109 +++--------------- arch/x86/kernel/smpboot.c | 17 -- arch/x86/kernel/trampoline.c | 2 arch/x86/mach-voyager/voyager_smp.c | 9 - include/asm-x86/e820.h | 6 + include/asm-x86/e820_64.h | 9 - include/asm-x86/smp.h | 1 arch/x86/kernel/e820.c | 214 ++++++++++++++++++++++++++++++++++++ arch/x86/kernel/e820_64.c | 196 -------------------------------- arch/x86/kernel/head32.c | 76 ++++++++++++ arch/x86/kernel/setup_32.c | 109 +++--------------- arch/x86/kernel/smpboot.c | 17 -- arch/x86/kernel/trampoline.c | 2 arch/x86/mach-voyager/voyager_smp.c | 9 - include/asm-x86/e820.h | 6 + include/asm-x86/e820_64.h | 9 - include/asm-x86/smp.h | 1 10 files changed, 320 insertions(+), 319 deletions(-) Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: add code to add BIOS provided EFI memory entries to kernelPaul Jackson2008-05-25
| | | | | | | | | | | | | | | | | | | | | Add to the kernels boot memory map 'memmap' entries found in the EFI memory descriptors passed in from the BIOS. On EFI systems, up to E820MAX == 128 memory map entries can be passed via the legacy E820 interface (limited by the size of the 'zeropage'). These entries can be duplicated in the EFI descriptors also passed from the BIOS, and possibly more entries passed by the EFI interface, which does not have the E820MAX limit on number of memory map entries. This code doesn't worry about the likely duplicate, overlapping or (unlikely) conflicting entries between the EFI map and the E820 map. It just dumps all the EFI entries into the memmap[] array (which already has the E820 entries) and lets the existing routine sanitize_e820_map() sort the mess out. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: longer comment explaining sanitize_e820_map routinePaul Jackson2008-05-25
| | | | | | | | | | Elaborate on the comment for sanitize_e820_map(), epxlaining more what it does, what it inputs, and what it returns. Rearrange the placement of this comment to fit kernel conventions, before the routine's code rather than buried inside it. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: change sanitize_e820_map parameter from byte to int to allow ↵Paul Jackson2008-05-25
| | | | | | | | | | | | | | | | | bigger memory maps The map size counter passed into, and back out of, sanitize_e820_map(), was an eight bit type (char or u8), as derived from its origins in legacy BIOS E820 structures. This patch changes that type to an 'int', to allow this sanitize routine to also be used on larger maps (larger than the 256 count that fits in a char). The legacy BIOS E820 interface of course does not change; that remains at 8 bits for this count, holding up to E820MAX == 128 entries. But the kernel internals can handle more when those additional memory map entries are passed from the BIOS via EFI interfaces. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: extend some internal memory map arrays to handle larger EFI inputPaul Jackson2008-05-25
| | | | | | | | | | | | | | | | | | | Extend internal boot time memory tables to allow for up to three entries per node, which may be larger than the 128 E820MAX entries handled by the legacy BIOS E820 interface. The EFI interface, if present, is capable of passing memory map entries for these larger node counts. This patch requires an earlier patch that rewrote code depending on these array sizes from using E820MAX explicitly to size loops, to instead using ARRAY_SIZE() of the applicable array. Another patch following this one will provide the code to pick up additional memory entries passed via the EFI interface from the BIOS and insert them in the following, now enlarged, arrays. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: proper use of ARRAY_SIZE instead of repeated E820MAX constantPaul Jackson2008-05-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is motivated by a subsequent patch which will allow for more memory map entries on EFI supported systems than can be passed via the x86 legacy BIOS E820 interface. The legacy interface is limited to E820MAX == 128 memory entries, and that "E820MAX" manifest constant was used as the size for several arrays and loops over those arrays. The primary change in this patch is to change code loop sizes over those arrays from using the constant E820MAX, to using the ARRAY_SIZE() macro evaluated for the array being looped. That way, a subsequent patch can change the size of some of these arrays, without breaking this code. This patch also adds a parameter to the sanitize_e820_map() routine, which had an implicit size for the array passed it of E820MAX entries. This new parameter explicitly passes the size of said array. Once again, this will allow a subsequent patch to change that array size for some calls to sanitize_e820_map() without breaking the code. As part of enhancing the sanitize_e820_map() interface this way, I further combined the unnecessarily distinct x86_32 and x86_64 declarations for this routine into a single, commonly used, declaration. This patch in itself should make no difference to the resulting kernel binary. [ mingo@elte.hu: merged to -tip ] Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: minor code format fixes in e820 and efi routinesPaul Jackson2008-05-25
| | | | | | | | Standardize a few pointer declarations to not have the extra space after the '*' character. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: simplify pageblock_bits enum declarationPaul Jackson2008-05-25
| | | | | | | | | | | | | | | The use of #defines with '##' pre-processor concatenation is a useful way to form several symbol names with a common pattern. But when there is just a single name obtained from that #define, it's just obfuscation. Better to just write the plain symbol name, as is. The following patch is a result of my wasting ten minutes looking through the kernel to figure out what 'PB_migrate_end' meant, and forgetting what I came to do, by the time I figured out that the #define PB_range macro defined it. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: add header comment to dmi.h stating what it isPaul Jackson2008-05-25
| | | | | | | | | The "dmi.h" file did not state anywhere in the file what "DMI" was. For those who know, it's obvious. For the rest of us, I added a brief opening comment. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: remove some unused extern function declarationsPaul Jackson2008-05-25
| | | | | | | | Remove three extern declarations for routines that don't exist. Fix a typo in a comment. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 boot: include missing smp.h headerPaul Jackson2008-05-25
| | | | | | | | | | | | | | | The patch: x86: convert cpu_to_apicid to be a per cpu variable introduced a dependency of ipi.h on smp.h in x86 builds with an allnoconfig. Including smp.h in ipi.h fixes the build error: In file included from arch/x86/kernel/traps_64.c:48: include/asm/ipi.h: In function 'send_IPI_mask_sequence': include/asm/ipi.h:114: error: 'per_cpu__x86_cpu_to_apicid' undeclared (first use in this function) Signed-off-by: Paul Jackson <pj@sgi.com> Cc: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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