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authorTony Luck <tony.luck@intel.com>2005-10-31 13:51:57 -0500
committerTony Luck <tony.luck@intel.com>2005-10-31 13:51:57 -0500
commitc7fb577e2a6cb04732541f2dc402bd46747f7558 (patch)
treedf3b1a1922ed13bfbcc45d08650c38beeb1a7bd1 /arch/ia64/kernel
parent9cec58dc138d6fcad9f447a19c8ff69f6540e667 (diff)
parent581c1b14394aee60aff46ea67d05483261ed6527 (diff)
manual update from upstream:
Applied Al's change 06a544971fad0992fe8b92c5647538d573089dd4 to new location of swiotlb.c Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/acpi.c13
-rw-r--r--arch/ia64/kernel/cyclone.c1
-rw-r--r--arch/ia64/kernel/efi.c510
-rw-r--r--arch/ia64/kernel/irq.c12
-rw-r--r--arch/ia64/kernel/mca.c4
-rw-r--r--arch/ia64/kernel/module.c6
-rw-r--r--arch/ia64/kernel/patch.c16
-rw-r--r--arch/ia64/kernel/perfmon.c3
-rw-r--r--arch/ia64/kernel/ptrace.c28
-rw-r--r--arch/ia64/kernel/setup.c63
-rw-r--r--arch/ia64/kernel/smp.c10
-rw-r--r--arch/ia64/kernel/smpboot.c6
-rw-r--r--arch/ia64/kernel/time.c4
-rw-r--r--arch/ia64/kernel/uncached.c17
14 files changed, 439 insertions, 254 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 7e926471e4ec..9ad94ddf6687 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -838,7 +838,7 @@ EXPORT_SYMBOL(acpi_unmap_lsapic);
838#endif /* CONFIG_ACPI_HOTPLUG_CPU */ 838#endif /* CONFIG_ACPI_HOTPLUG_CPU */
839 839
840#ifdef CONFIG_ACPI_NUMA 840#ifdef CONFIG_ACPI_NUMA
841acpi_status __devinit 841static acpi_status __devinit
842acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret) 842acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
843{ 843{
844 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 844 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -890,7 +890,16 @@ acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
890 map_iosapic_to_node(gsi_base, node); 890 map_iosapic_to_node(gsi_base, node);
891 return AE_OK; 891 return AE_OK;
892} 892}
893#endif /* CONFIG_NUMA */ 893
894static int __init
895acpi_map_iosapics (void)
896{
897 acpi_get_devices(NULL, acpi_map_iosapic, NULL, NULL);
898 return 0;
899}
900
901fs_initcall(acpi_map_iosapics);
902#endif /* CONFIG_ACPI_NUMA */
894 903
895int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) 904int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
896{ 905{
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index 768c7e46957c..6ade3790ce07 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -2,6 +2,7 @@
2#include <linux/smp.h> 2#include <linux/smp.h>
3#include <linux/time.h> 3#include <linux/time.h>
4#include <linux/errno.h> 4#include <linux/errno.h>
5#include <linux/timex.h>
5#include <asm/io.h> 6#include <asm/io.h>
6 7
7/* IBM Summit (EXA) Cyclone counter code*/ 8/* IBM Summit (EXA) Cyclone counter code*/
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 179f230816ed..f72ea6aebcb1 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -239,57 +239,30 @@ is_available_memory (efi_memory_desc_t *md)
239 return 0; 239 return 0;
240} 240}
241 241
242/* 242typedef struct kern_memdesc {
243 * Trim descriptor MD so its starts at address START_ADDR. If the descriptor covers 243 u64 attribute;
244 * memory that is normally available to the kernel, issue a warning that some memory 244 u64 start;
245 * is being ignored. 245 u64 num_pages;
246 */ 246} kern_memdesc_t;
247static void
248trim_bottom (efi_memory_desc_t *md, u64 start_addr)
249{
250 u64 num_skipped_pages;
251 247
252 if (md->phys_addr >= start_addr || !md->num_pages) 248static kern_memdesc_t *kern_memmap;
253 return;
254
255 num_skipped_pages = (start_addr - md->phys_addr) >> EFI_PAGE_SHIFT;
256 if (num_skipped_pages > md->num_pages)
257 num_skipped_pages = md->num_pages;
258
259 if (is_available_memory(md))
260 printk(KERN_NOTICE "efi.%s: ignoring %luKB of memory at 0x%lx due to granule hole "
261 "at 0x%lx\n", __FUNCTION__,
262 (num_skipped_pages << EFI_PAGE_SHIFT) >> 10,
263 md->phys_addr, start_addr - IA64_GRANULE_SIZE);
264 /*
265 * NOTE: Don't set md->phys_addr to START_ADDR because that could cause the memory
266 * descriptor list to become unsorted. In such a case, md->num_pages will be
267 * zero, so the Right Thing will happen.
268 */
269 md->phys_addr += num_skipped_pages << EFI_PAGE_SHIFT;
270 md->num_pages -= num_skipped_pages;
271}
272 249
273static void 250static void
274trim_top (efi_memory_desc_t *md, u64 end_addr) 251walk (efi_freemem_callback_t callback, void *arg, u64 attr)
275{ 252{
276 u64 num_dropped_pages, md_end_addr; 253 kern_memdesc_t *k;
277 254 u64 start, end, voff;
278 md_end_addr = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
279
280 if (md_end_addr <= end_addr || !md->num_pages)
281 return;
282 255
283 num_dropped_pages = (md_end_addr - end_addr) >> EFI_PAGE_SHIFT; 256 voff = (attr == EFI_MEMORY_WB) ? PAGE_OFFSET : __IA64_UNCACHED_OFFSET;
284 if (num_dropped_pages > md->num_pages) 257 for (k = kern_memmap; k->start != ~0UL; k++) {
285 num_dropped_pages = md->num_pages; 258 if (k->attribute != attr)
286 259 continue;
287 if (is_available_memory(md)) 260 start = PAGE_ALIGN(k->start);
288 printk(KERN_NOTICE "efi.%s: ignoring %luKB of memory at 0x%lx due to granule hole " 261 end = (k->start + (k->num_pages << EFI_PAGE_SHIFT)) & PAGE_MASK;
289 "at 0x%lx\n", __FUNCTION__, 262 if (start < end)
290 (num_dropped_pages << EFI_PAGE_SHIFT) >> 10, 263 if ((*callback)(start + voff, end + voff, arg) < 0)
291 md->phys_addr, end_addr); 264 return;
292 md->num_pages -= num_dropped_pages; 265 }
293} 266}
294 267
295/* 268/*
@@ -299,148 +272,19 @@ trim_top (efi_memory_desc_t *md, u64 end_addr)
299void 272void
300efi_memmap_walk (efi_freemem_callback_t callback, void *arg) 273efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
301{ 274{
302 int prev_valid = 0; 275 walk(callback, arg, EFI_MEMORY_WB);
303 struct range {
304 u64 start;
305 u64 end;
306 } prev, curr;
307 void *efi_map_start, *efi_map_end, *p, *q;
308 efi_memory_desc_t *md, *check_md;
309 u64 efi_desc_size, start, end, granule_addr, last_granule_addr, first_non_wb_addr = 0;
310 unsigned long total_mem = 0;
311
312 efi_map_start = __va(ia64_boot_param->efi_memmap);
313 efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
314 efi_desc_size = ia64_boot_param->efi_memdesc_size;
315
316 for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
317 md = p;
318
319 /* skip over non-WB memory descriptors; that's all we're interested in... */
320 if (!(md->attribute & EFI_MEMORY_WB))
321 continue;
322
323 /*
324 * granule_addr is the base of md's first granule.
325 * [granule_addr - first_non_wb_addr) is guaranteed to
326 * be contiguous WB memory.
327 */
328 granule_addr = GRANULEROUNDDOWN(md->phys_addr);
329 first_non_wb_addr = max(first_non_wb_addr, granule_addr);
330
331 if (first_non_wb_addr < md->phys_addr) {
332 trim_bottom(md, granule_addr + IA64_GRANULE_SIZE);
333 granule_addr = GRANULEROUNDDOWN(md->phys_addr);
334 first_non_wb_addr = max(first_non_wb_addr, granule_addr);
335 }
336
337 for (q = p; q < efi_map_end; q += efi_desc_size) {
338 check_md = q;
339
340 if ((check_md->attribute & EFI_MEMORY_WB) &&
341 (check_md->phys_addr == first_non_wb_addr))
342 first_non_wb_addr += check_md->num_pages << EFI_PAGE_SHIFT;
343 else
344 break; /* non-WB or hole */
345 }
346
347 last_granule_addr = GRANULEROUNDDOWN(first_non_wb_addr);
348 if (last_granule_addr < md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT))
349 trim_top(md, last_granule_addr);
350
351 if (is_available_memory(md)) {
352 if (md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) >= max_addr) {
353 if (md->phys_addr >= max_addr)
354 continue;
355 md->num_pages = (max_addr - md->phys_addr) >> EFI_PAGE_SHIFT;
356 first_non_wb_addr = max_addr;
357 }
358
359 if (total_mem >= mem_limit)
360 continue;
361
362 if (total_mem + (md->num_pages << EFI_PAGE_SHIFT) > mem_limit) {
363 unsigned long limit_addr = md->phys_addr;
364
365 limit_addr += mem_limit - total_mem;
366 limit_addr = GRANULEROUNDDOWN(limit_addr);
367
368 if (md->phys_addr > limit_addr)
369 continue;
370
371 md->num_pages = (limit_addr - md->phys_addr) >>
372 EFI_PAGE_SHIFT;
373 first_non_wb_addr = max_addr = md->phys_addr +
374 (md->num_pages << EFI_PAGE_SHIFT);
375 }
376 total_mem += (md->num_pages << EFI_PAGE_SHIFT);
377
378 if (md->num_pages == 0)
379 continue;
380
381 curr.start = PAGE_OFFSET + md->phys_addr;
382 curr.end = curr.start + (md->num_pages << EFI_PAGE_SHIFT);
383
384 if (!prev_valid) {
385 prev = curr;
386 prev_valid = 1;
387 } else {
388 if (curr.start < prev.start)
389 printk(KERN_ERR "Oops: EFI memory table not ordered!\n");
390
391 if (prev.end == curr.start) {
392 /* merge two consecutive memory ranges */
393 prev.end = curr.end;
394 } else {
395 start = PAGE_ALIGN(prev.start);
396 end = prev.end & PAGE_MASK;
397 if ((end > start) && (*callback)(start, end, arg) < 0)
398 return;
399 prev = curr;
400 }
401 }
402 }
403 }
404 if (prev_valid) {
405 start = PAGE_ALIGN(prev.start);
406 end = prev.end & PAGE_MASK;
407 if (end > start)
408 (*callback)(start, end, arg);
409 }
410} 276}
411 277
412/* 278/*
413 * Walk the EFI memory map to pull out leftover pages in the lower 279 * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that
414 * memory regions which do not end up in the regular memory map and 280 * has memory that is available for uncached allocator.
415 * stick them into the uncached allocator
416 *
417 * The regular walk function is significantly more complex than the
418 * uncached walk which means it really doesn't make sense to try and
419 * marge the two.
420 */ 281 */
421void __init 282void
422efi_memmap_walk_uc (efi_freemem_callback_t callback) 283efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg)
423{ 284{
424 void *efi_map_start, *efi_map_end, *p; 285 walk(callback, arg, EFI_MEMORY_UC);
425 efi_memory_desc_t *md;
426 u64 efi_desc_size, start, end;
427
428 efi_map_start = __va(ia64_boot_param->efi_memmap);
429 efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
430 efi_desc_size = ia64_boot_param->efi_memdesc_size;
431
432 for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
433 md = p;
434 if (md->attribute == EFI_MEMORY_UC) {
435 start = PAGE_ALIGN(md->phys_addr);
436 end = PAGE_ALIGN((md->phys_addr+(md->num_pages << EFI_PAGE_SHIFT)) & PAGE_MASK);
437 if ((*callback)(start, end, NULL) < 0)
438 return;
439 }
440 }
441} 286}
442 287
443
444/* 288/*
445 * Look for the PAL_CODE region reported by EFI and maps it using an 289 * Look for the PAL_CODE region reported by EFI and maps it using an
446 * ITR to enable safe PAL calls in virtual mode. See IA-64 Processor 290 * ITR to enable safe PAL calls in virtual mode. See IA-64 Processor
@@ -862,3 +706,307 @@ efi_uart_console_only(void)
862 printk(KERN_ERR "Malformed %s value\n", name); 706 printk(KERN_ERR "Malformed %s value\n", name);
863 return 0; 707 return 0;
864} 708}
709
710#define efi_md_size(md) (md->num_pages << EFI_PAGE_SHIFT)
711
712static inline u64
713kmd_end(kern_memdesc_t *kmd)
714{
715 return (kmd->start + (kmd->num_pages << EFI_PAGE_SHIFT));
716}
717
718static inline u64
719efi_md_end(efi_memory_desc_t *md)
720{
721 return (md->phys_addr + efi_md_size(md));
722}
723
724static inline int
725efi_wb(efi_memory_desc_t *md)
726{
727 return (md->attribute & EFI_MEMORY_WB);
728}
729
730static inline int
731efi_uc(efi_memory_desc_t *md)
732{
733 return (md->attribute & EFI_MEMORY_UC);
734}
735
736/*
737 * Look for the first granule aligned memory descriptor memory
738 * that is big enough to hold EFI memory map. Make sure this
739 * descriptor is atleast granule sized so it does not get trimmed
740 */
741struct kern_memdesc *
742find_memmap_space (void)
743{
744 u64 contig_low=0, contig_high=0;
745 u64 as = 0, ae;
746 void *efi_map_start, *efi_map_end, *p, *q;
747 efi_memory_desc_t *md, *pmd = NULL, *check_md;
748 u64 space_needed, efi_desc_size;
749 unsigned long total_mem = 0;
750
751 efi_map_start = __va(ia64_boot_param->efi_memmap);
752 efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
753 efi_desc_size = ia64_boot_param->efi_memdesc_size;
754
755 /*
756 * Worst case: we need 3 kernel descriptors for each efi descriptor
757 * (if every entry has a WB part in the middle, and UC head and tail),
758 * plus one for the end marker.
759 */
760 space_needed = sizeof(kern_memdesc_t) *
761 (3 * (ia64_boot_param->efi_memmap_size/efi_desc_size) + 1);
762
763 for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) {
764 md = p;
765 if (!efi_wb(md)) {
766 continue;
767 }
768 if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) {
769 contig_low = GRANULEROUNDUP(md->phys_addr);
770 contig_high = efi_md_end(md);
771 for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) {
772 check_md = q;
773 if (!efi_wb(check_md))
774 break;
775 if (contig_high != check_md->phys_addr)
776 break;
777 contig_high = efi_md_end(check_md);
778 }
779 contig_high = GRANULEROUNDDOWN(contig_high);
780 }
781 if (!is_available_memory(md) || md->type == EFI_LOADER_DATA)
782 continue;
783
784 /* Round ends inward to granule boundaries */
785 as = max(contig_low, md->phys_addr);
786 ae = min(contig_high, efi_md_end(md));
787
788 /* keep within max_addr= command line arg */
789 ae = min(ae, max_addr);
790 if (ae <= as)
791 continue;
792
793 /* avoid going over mem= command line arg */
794 if (total_mem + (ae - as) > mem_limit)
795 ae -= total_mem + (ae - as) - mem_limit;
796
797 if (ae <= as)
798 continue;
799
800 if (ae - as > space_needed)
801 break;
802 }
803 if (p >= efi_map_end)
804 panic("Can't allocate space for kernel memory descriptors");
805
806 return __va(as);
807}
808
809/*
810 * Walk the EFI memory map and gather all memory available for kernel
811 * to use. We can allocate partial granules only if the unavailable
812 * parts exist, and are WB.
813 */
814void
815efi_memmap_init(unsigned long *s, unsigned long *e)
816{
817 struct kern_memdesc *k, *prev = 0;
818 u64 contig_low=0, contig_high=0;
819 u64 as, ae, lim;
820 void *efi_map_start, *efi_map_end, *p, *q;
821 efi_memory_desc_t *md, *pmd = NULL, *check_md;
822 u64 efi_desc_size;
823 unsigned long total_mem = 0;
824
825 k = kern_memmap = find_memmap_space();
826
827 efi_map_start = __va(ia64_boot_param->efi_memmap);
828 efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
829 efi_desc_size = ia64_boot_param->efi_memdesc_size;
830
831 for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) {
832 md = p;
833 if (!efi_wb(md)) {
834 if (efi_uc(md) && (md->type == EFI_CONVENTIONAL_MEMORY ||
835 md->type == EFI_BOOT_SERVICES_DATA)) {
836 k->attribute = EFI_MEMORY_UC;
837 k->start = md->phys_addr;
838 k->num_pages = md->num_pages;
839 k++;
840 }
841 continue;
842 }
843 if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) {
844 contig_low = GRANULEROUNDUP(md->phys_addr);
845 contig_high = efi_md_end(md);
846 for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) {
847 check_md = q;
848 if (!efi_wb(check_md))
849 break;
850 if (contig_high != check_md->phys_addr)
851 break;
852 contig_high = efi_md_end(check_md);
853 }
854 contig_high = GRANULEROUNDDOWN(contig_high);
855 }
856 if (!is_available_memory(md))
857 continue;
858
859 /*
860 * Round ends inward to granule boundaries
861 * Give trimmings to uncached allocator
862 */
863 if (md->phys_addr < contig_low) {
864 lim = min(efi_md_end(md), contig_low);
865 if (efi_uc(md)) {
866 if (k > kern_memmap && (k-1)->attribute == EFI_MEMORY_UC &&
867 kmd_end(k-1) == md->phys_addr) {
868 (k-1)->num_pages += (lim - md->phys_addr) >> EFI_PAGE_SHIFT;
869 } else {
870 k->attribute = EFI_MEMORY_UC;
871 k->start = md->phys_addr;
872 k->num_pages = (lim - md->phys_addr) >> EFI_PAGE_SHIFT;
873 k++;
874 }
875 }
876 as = contig_low;
877 } else
878 as = md->phys_addr;
879
880 if (efi_md_end(md) > contig_high) {
881 lim = max(md->phys_addr, contig_high);
882 if (efi_uc(md)) {
883 if (lim == md->phys_addr && k > kern_memmap &&
884 (k-1)->attribute == EFI_MEMORY_UC &&
885 kmd_end(k-1) == md->phys_addr) {
886 (k-1)->num_pages += md->num_pages;
887 } else {
888 k->attribute = EFI_MEMORY_UC;
889 k->start = lim;
890 k->num_pages = (efi_md_end(md) - lim) >> EFI_PAGE_SHIFT;
891 k++;
892 }
893 }
894 ae = contig_high;
895 } else
896 ae = efi_md_end(md);
897
898 /* keep within max_addr= command line arg */
899 ae = min(ae, max_addr);
900 if (ae <= as)
901 continue;
902
903 /* avoid going over mem= command line arg */
904 if (total_mem + (ae - as) > mem_limit)
905 ae -= total_mem + (ae - as) - mem_limit;
906
907 if (ae <= as)
908 continue;
909 if (prev && kmd_end(prev) == md->phys_addr) {
910 prev->num_pages += (ae - as) >> EFI_PAGE_SHIFT;
911 total_mem += ae - as;
912 continue;
913 }
914 k->attribute = EFI_MEMORY_WB;
915 k->start = as;
916 k->num_pages = (ae - as) >> EFI_PAGE_SHIFT;
917 total_mem += ae - as;
918 prev = k++;
919 }
920 k->start = ~0L; /* end-marker */
921
922 /* reserve the memory we are using for kern_memmap */
923 *s = (u64)kern_memmap;
924 *e = (u64)++k;
925}
926
927void
928efi_initialize_iomem_resources(struct resource *code_resource,
929 struct resource *data_resource)
930{
931 struct resource *res;
932 void *efi_map_start, *efi_map_end, *p;
933 efi_memory_desc_t *md;
934 u64 efi_desc_size;
935 char *name;
936 unsigned long flags;
937
938 efi_map_start = __va(ia64_boot_param->efi_memmap);
939 efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
940 efi_desc_size = ia64_boot_param->efi_memdesc_size;
941
942 res = NULL;
943
944 for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
945 md = p;
946
947 if (md->num_pages == 0) /* should not happen */
948 continue;
949
950 flags = IORESOURCE_MEM;
951 switch (md->type) {
952
953 case EFI_MEMORY_MAPPED_IO:
954 case EFI_MEMORY_MAPPED_IO_PORT_SPACE:
955 continue;
956
957 case EFI_LOADER_CODE:
958 case EFI_LOADER_DATA:
959 case EFI_BOOT_SERVICES_DATA:
960 case EFI_BOOT_SERVICES_CODE:
961 case EFI_CONVENTIONAL_MEMORY:
962 if (md->attribute & EFI_MEMORY_WP) {
963 name = "System ROM";
964 flags |= IORESOURCE_READONLY;
965 } else {
966 name = "System RAM";
967 }
968 break;
969
970 case EFI_ACPI_MEMORY_NVS:
971 name = "ACPI Non-volatile Storage";
972 flags |= IORESOURCE_BUSY;
973 break;
974
975 case EFI_UNUSABLE_MEMORY:
976 name = "reserved";
977 flags |= IORESOURCE_BUSY | IORESOURCE_DISABLED;
978 break;
979
980 case EFI_RESERVED_TYPE:
981 case EFI_RUNTIME_SERVICES_CODE:
982 case EFI_RUNTIME_SERVICES_DATA:
983 case EFI_ACPI_RECLAIM_MEMORY:
984 default:
985 name = "reserved";
986 flags |= IORESOURCE_BUSY;
987 break;
988 }
989
990 if ((res = kcalloc(1, sizeof(struct resource), GFP_KERNEL)) == NULL) {
991 printk(KERN_ERR "failed to alocate resource for iomem\n");
992 return;
993 }
994
995 res->name = name;
996 res->start = md->phys_addr;
997 res->end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1;
998 res->flags = flags;
999
1000 if (insert_resource(&iomem_resource, res) < 0)
1001 kfree(res);
1002 else {
1003 /*
1004 * We don't know which region contains
1005 * kernel data so we try it repeatedly and
1006 * let the resource manager test it.
1007 */
1008 insert_resource(res, code_resource);
1009 insert_resource(res, data_resource);
1010 }
1011 }
1012}
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 205d98028261..d33244c32759 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -57,9 +57,9 @@ int show_interrupts(struct seq_file *p, void *v)
57 57
58 if (i == 0) { 58 if (i == 0) {
59 seq_printf(p, " "); 59 seq_printf(p, " ");
60 for (j=0; j<NR_CPUS; j++) 60 for_each_online_cpu(j) {
61 if (cpu_online(j)) 61 seq_printf(p, "CPU%d ",j);
62 seq_printf(p, "CPU%d ",j); 62 }
63 seq_putc(p, '\n'); 63 seq_putc(p, '\n');
64 } 64 }
65 65
@@ -72,9 +72,9 @@ int show_interrupts(struct seq_file *p, void *v)
72#ifndef CONFIG_SMP 72#ifndef CONFIG_SMP
73 seq_printf(p, "%10u ", kstat_irqs(i)); 73 seq_printf(p, "%10u ", kstat_irqs(i));
74#else 74#else
75 for (j = 0; j < NR_CPUS; j++) 75 for_each_online_cpu(j) {
76 if (cpu_online(j)) 76 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
77 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); 77 }
78#endif 78#endif
79 seq_printf(p, " %14s", irq_desc[i].handler->typename); 79 seq_printf(p, " %14s", irq_desc[i].handler->typename);
80 seq_printf(p, " %s", action->name); 80 seq_printf(p, " %s", action->name);
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index d0a5106fba24..52c47da17246 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -508,9 +508,7 @@ ia64_mca_wakeup_all(void)
508 int cpu; 508 int cpu;
509 509
510 /* Clear the Rendez checkin flag for all cpus */ 510 /* Clear the Rendez checkin flag for all cpus */
511 for(cpu = 0; cpu < NR_CPUS; cpu++) { 511 for_each_online_cpu(cpu) {
512 if (!cpu_online(cpu))
513 continue;
514 if (ia64_mc_info.imi_rendez_checkin[cpu] == IA64_MCA_RENDEZ_CHECKIN_DONE) 512 if (ia64_mc_info.imi_rendez_checkin[cpu] == IA64_MCA_RENDEZ_CHECKIN_DONE)
515 ia64_mca_wakeup(cpu); 513 ia64_mca_wakeup(cpu);
516 } 514 }
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index f1aca7cffd12..7a2f0a798d12 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -947,8 +947,8 @@ void
947percpu_modcopy (void *pcpudst, const void *src, unsigned long size) 947percpu_modcopy (void *pcpudst, const void *src, unsigned long size)
948{ 948{
949 unsigned int i; 949 unsigned int i;
950 for (i = 0; i < NR_CPUS; i++) 950 for_each_cpu(i) {
951 if (cpu_possible(i)) 951 memcpy(pcpudst + __per_cpu_offset[i], src, size);
952 memcpy(pcpudst + __per_cpu_offset[i], src, size); 952 }
953} 953}
954#endif /* CONFIG_SMP */ 954#endif /* CONFIG_SMP */
diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c
index 367804a605fa..6a4ac7d70b35 100644
--- a/arch/ia64/kernel/patch.c
+++ b/arch/ia64/kernel/patch.c
@@ -64,22 +64,30 @@ ia64_patch (u64 insn_addr, u64 mask, u64 val)
64void 64void
65ia64_patch_imm64 (u64 insn_addr, u64 val) 65ia64_patch_imm64 (u64 insn_addr, u64 val)
66{ 66{
67 ia64_patch(insn_addr, 67 /* The assembler may generate offset pointing to either slot 1
68 or slot 2 for a long (2-slot) instruction, occupying slots 1
69 and 2. */
70 insn_addr &= -16UL;
71 ia64_patch(insn_addr + 2,
68 0x01fffefe000UL, ( ((val & 0x8000000000000000UL) >> 27) /* bit 63 -> 36 */ 72 0x01fffefe000UL, ( ((val & 0x8000000000000000UL) >> 27) /* bit 63 -> 36 */
69 | ((val & 0x0000000000200000UL) << 0) /* bit 21 -> 21 */ 73 | ((val & 0x0000000000200000UL) << 0) /* bit 21 -> 21 */
70 | ((val & 0x00000000001f0000UL) << 6) /* bit 16 -> 22 */ 74 | ((val & 0x00000000001f0000UL) << 6) /* bit 16 -> 22 */
71 | ((val & 0x000000000000ff80UL) << 20) /* bit 7 -> 27 */ 75 | ((val & 0x000000000000ff80UL) << 20) /* bit 7 -> 27 */
72 | ((val & 0x000000000000007fUL) << 13) /* bit 0 -> 13 */)); 76 | ((val & 0x000000000000007fUL) << 13) /* bit 0 -> 13 */));
73 ia64_patch(insn_addr - 1, 0x1ffffffffffUL, val >> 22); 77 ia64_patch(insn_addr + 1, 0x1ffffffffffUL, val >> 22);
74} 78}
75 79
76void 80void
77ia64_patch_imm60 (u64 insn_addr, u64 val) 81ia64_patch_imm60 (u64 insn_addr, u64 val)
78{ 82{
79 ia64_patch(insn_addr, 83 /* The assembler may generate offset pointing to either slot 1
84 or slot 2 for a long (2-slot) instruction, occupying slots 1
85 and 2. */
86 insn_addr &= -16UL;
87 ia64_patch(insn_addr + 2,
80 0x011ffffe000UL, ( ((val & 0x0800000000000000UL) >> 23) /* bit 59 -> 36 */ 88 0x011ffffe000UL, ( ((val & 0x0800000000000000UL) >> 23) /* bit 59 -> 36 */
81 | ((val & 0x00000000000fffffUL) << 13) /* bit 0 -> 13 */)); 89 | ((val & 0x00000000000fffffUL) << 13) /* bit 0 -> 13 */));
82 ia64_patch(insn_addr - 1, 0x1fffffffffcUL, val >> 18); 90 ia64_patch(insn_addr + 1, 0x1fffffffffcUL, val >> 18);
83} 91}
84 92
85/* 93/*
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index d71731ee5b61..f7dfc107cb7b 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2352,7 +2352,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
2352 insert_vm_struct(mm, vma); 2352 insert_vm_struct(mm, vma);
2353 2353
2354 mm->total_vm += size >> PAGE_SHIFT; 2354 mm->total_vm += size >> PAGE_SHIFT;
2355 vm_stat_account(vma); 2355 vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
2356 vma_pages(vma));
2356 up_write(&task->mm->mmap_sem); 2357 up_write(&task->mm->mmap_sem);
2357 2358
2358 /* 2359 /*
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index bbb8bc7c0552..4b19d0410632 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -587,8 +587,9 @@ thread_matches (struct task_struct *thread, unsigned long addr)
587static struct task_struct * 587static struct task_struct *
588find_thread_for_addr (struct task_struct *child, unsigned long addr) 588find_thread_for_addr (struct task_struct *child, unsigned long addr)
589{ 589{
590 struct task_struct *g, *p; 590 struct task_struct *p;
591 struct mm_struct *mm; 591 struct mm_struct *mm;
592 struct list_head *this, *next;
592 int mm_users; 593 int mm_users;
593 594
594 if (!(mm = get_task_mm(child))) 595 if (!(mm = get_task_mm(child)))
@@ -600,28 +601,21 @@ find_thread_for_addr (struct task_struct *child, unsigned long addr)
600 goto out; /* not multi-threaded */ 601 goto out; /* not multi-threaded */
601 602
602 /* 603 /*
603 * First, traverse the child's thread-list. Good for scalability with 604 * Traverse the current process' children list. Every task that
604 * NPTL-threads. 605 * one attaches to becomes a child. And it is only attached children
606 * of the debugger that are of interest (ptrace_check_attach checks
607 * for this).
605 */ 608 */
606 p = child; 609 list_for_each_safe(this, next, &current->children) {
607 do { 610 p = list_entry(this, struct task_struct, sibling);
608 if (thread_matches(p, addr)) { 611 if (p->mm != mm)
609 child = p;
610 goto out;
611 }
612 if (mm_users-- <= 1)
613 goto out;
614 } while ((p = next_thread(p)) != child);
615
616 do_each_thread(g, p) {
617 if (child->mm != mm)
618 continue; 612 continue;
619
620 if (thread_matches(p, addr)) { 613 if (thread_matches(p, addr)) {
621 child = p; 614 child = p;
622 goto out; 615 goto out;
623 } 616 }
624 } while_each_thread(g, p); 617 }
618
625 out: 619 out:
626 mmput(mm); 620 mmput(mm);
627 return child; 621 return child;
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 1f5c26dbe705..fc56ca2da358 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -78,6 +78,19 @@ struct screen_info screen_info;
78unsigned long vga_console_iobase; 78unsigned long vga_console_iobase;
79unsigned long vga_console_membase; 79unsigned long vga_console_membase;
80 80
81static struct resource data_resource = {
82 .name = "Kernel data",
83 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
84};
85
86static struct resource code_resource = {
87 .name = "Kernel code",
88 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
89};
90extern void efi_initialize_iomem_resources(struct resource *,
91 struct resource *);
92extern char _text[], _end[], _etext[];
93
81unsigned long ia64_max_cacheline_size; 94unsigned long ia64_max_cacheline_size;
82unsigned long ia64_iobase; /* virtual address for I/O accesses */ 95unsigned long ia64_iobase; /* virtual address for I/O accesses */
83EXPORT_SYMBOL(ia64_iobase); 96EXPORT_SYMBOL(ia64_iobase);
@@ -171,6 +184,22 @@ sort_regions (struct rsvd_region *rsvd_region, int max)
171 } 184 }
172} 185}
173 186
187/*
188 * Request address space for all standard resources
189 */
190static int __init register_memory(void)
191{
192 code_resource.start = ia64_tpa(_text);
193 code_resource.end = ia64_tpa(_etext) - 1;
194 data_resource.start = ia64_tpa(_etext);
195 data_resource.end = ia64_tpa(_end) - 1;
196 efi_initialize_iomem_resources(&code_resource, &data_resource);
197
198 return 0;
199}
200
201__initcall(register_memory);
202
174/** 203/**
175 * reserve_memory - setup reserved memory areas 204 * reserve_memory - setup reserved memory areas
176 * 205 *
@@ -211,6 +240,9 @@ reserve_memory (void)
211 } 240 }
212#endif 241#endif
213 242
243 efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
244 n++;
245
214 /* end of memory marker */ 246 /* end of memory marker */
215 rsvd_region[n].start = ~0UL; 247 rsvd_region[n].start = ~0UL;
216 rsvd_region[n].end = ~0UL; 248 rsvd_region[n].end = ~0UL;
@@ -244,28 +276,31 @@ find_initrd (void)
244static void __init 276static void __init
245io_port_init (void) 277io_port_init (void)
246{ 278{
247 extern unsigned long ia64_iobase;
248 unsigned long phys_iobase; 279 unsigned long phys_iobase;
249 280
250 /* 281 /*
251 * Set `iobase' to the appropriate address in region 6 (uncached access range). 282 * Set `iobase' based on the EFI memory map or, failing that, the
283 * value firmware left in ar.k0.
252 * 284 *
253 * The EFI memory map is the "preferred" location to get the I/O port space base, 285 * Note that in ia32 mode, IN/OUT instructions use ar.k0 to compute
254 * rather the relying on AR.KR0. This should become more clear in future SAL 286 * the port's virtual address, so ia32_load_state() loads it with a
255 * specs. We'll fall back to getting it out of AR.KR0 if no appropriate entry is 287 * user virtual address. But in ia64 mode, glibc uses the
256 * found in the memory map. 288 * *physical* address in ar.k0 to mmap the appropriate area from
289 * /dev/mem, and the inX()/outX() interfaces use MMIO. In both
290 * cases, user-mode can only use the legacy 0-64K I/O port space.
291 *
292 * ar.k0 is not involved in kernel I/O port accesses, which can use
293 * any of the I/O port spaces and are done via MMIO using the
294 * virtual mmio_base from the appropriate io_space[].
257 */ 295 */
258 phys_iobase = efi_get_iobase(); 296 phys_iobase = efi_get_iobase();
259 if (phys_iobase) 297 if (!phys_iobase) {
260 /* set AR.KR0 since this is all we use it for anyway */
261 ia64_set_kr(IA64_KR_IO_BASE, phys_iobase);
262 else {
263 phys_iobase = ia64_get_kr(IA64_KR_IO_BASE); 298 phys_iobase = ia64_get_kr(IA64_KR_IO_BASE);
264 printk(KERN_INFO "No I/O port range found in EFI memory map, falling back " 299 printk(KERN_INFO "No I/O port range found in EFI memory map, "
265 "to AR.KR0\n"); 300 "falling back to AR.KR0 (0x%lx)\n", phys_iobase);
266 printk(KERN_INFO "I/O port base = 0x%lx\n", phys_iobase);
267 } 301 }
268 ia64_iobase = (unsigned long) ioremap(phys_iobase, 0); 302 ia64_iobase = (unsigned long) ioremap(phys_iobase, 0);
303 ia64_set_kr(IA64_KR_IO_BASE, __pa(ia64_iobase));
269 304
270 /* setup legacy IO port space */ 305 /* setup legacy IO port space */
271 io_space[0].mmio_base = ia64_iobase; 306 io_space[0].mmio_base = ia64_iobase;
@@ -526,7 +561,7 @@ show_cpuinfo (struct seq_file *m, void *v)
526 c->itc_freq / 1000000, c->itc_freq % 1000000, 561 c->itc_freq / 1000000, c->itc_freq % 1000000,
527 lpj*HZ/500000, (lpj*HZ/5000) % 100); 562 lpj*HZ/500000, (lpj*HZ/5000) % 100);
528#ifdef CONFIG_SMP 563#ifdef CONFIG_SMP
529 seq_printf(m, "siblings : %u\n", c->num_log); 564 seq_printf(m, "siblings : %u\n", cpus_weight(cpu_core_map[cpunum]));
530 if (c->threads_per_core > 1 || c->cores_per_socket > 1) 565 if (c->threads_per_core > 1 || c->cores_per_socket > 1)
531 seq_printf(m, 566 seq_printf(m,
532 "physical id: %u\n" 567 "physical id: %u\n"
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 0166a9847095..657ac99a451c 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -185,8 +185,8 @@ send_IPI_allbutself (int op)
185{ 185{
186 unsigned int i; 186 unsigned int i;
187 187
188 for (i = 0; i < NR_CPUS; i++) { 188 for_each_online_cpu(i) {
189 if (cpu_online(i) && i != smp_processor_id()) 189 if (i != smp_processor_id())
190 send_IPI_single(i, op); 190 send_IPI_single(i, op);
191 } 191 }
192} 192}
@@ -199,9 +199,9 @@ send_IPI_all (int op)
199{ 199{
200 int i; 200 int i;
201 201
202 for (i = 0; i < NR_CPUS; i++) 202 for_each_online_cpu(i) {
203 if (cpu_online(i)) 203 send_IPI_single(i, op);
204 send_IPI_single(i, op); 204 }
205} 205}
206 206
207/* 207/*
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 7d72c0d872b3..400a48987124 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -694,9 +694,9 @@ smp_cpus_done (unsigned int dummy)
694 * Allow the user to impress friends. 694 * Allow the user to impress friends.
695 */ 695 */
696 696
697 for (cpu = 0; cpu < NR_CPUS; cpu++) 697 for_each_online_cpu(cpu) {
698 if (cpu_online(cpu)) 698 bogosum += cpu_data(cpu)->loops_per_jiffy;
699 bogosum += cpu_data(cpu)->loops_per_jiffy; 699 }
700 700
701 printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n", 701 printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
702 (int)num_online_cpus(), bogosum/(500000/HZ), (bogosum/(5000/HZ))%100); 702 (int)num_online_cpus(), bogosum/(500000/HZ), (bogosum/(5000/HZ))%100);
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 8b8a5a45b621..5b7e736f3b49 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -32,10 +32,6 @@
32 32
33extern unsigned long wall_jiffies; 33extern unsigned long wall_jiffies;
34 34
35u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
36
37EXPORT_SYMBOL(jiffies_64);
38
39#define TIME_KEEPER_ID 0 /* smp_processor_id() of time-keeper */ 35#define TIME_KEEPER_ID 0 /* smp_processor_id() of time-keeper */
40 36
41#ifdef CONFIG_IA64_DEBUG_IRQ 37#ifdef CONFIG_IA64_DEBUG_IRQ
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index 4e9d06c48a8b..c6d40446c2c4 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -205,23 +205,18 @@ EXPORT_SYMBOL(uncached_free_page);
205static int __init 205static int __init
206uncached_build_memmap(unsigned long start, unsigned long end, void *arg) 206uncached_build_memmap(unsigned long start, unsigned long end, void *arg)
207{ 207{
208 long length; 208 long length = end - start;
209 unsigned long vstart, vend;
210 int node; 209 int node;
211 210
212 length = end - start;
213 vstart = start + __IA64_UNCACHED_OFFSET;
214 vend = end + __IA64_UNCACHED_OFFSET;
215
216 dprintk(KERN_ERR "uncached_build_memmap(%lx %lx)\n", start, end); 211 dprintk(KERN_ERR "uncached_build_memmap(%lx %lx)\n", start, end);
217 212
218 memset((char *)vstart, 0, length); 213 memset((char *)start, 0, length);
219 214
220 node = paddr_to_nid(start); 215 node = paddr_to_nid(start - __IA64_UNCACHED_OFFSET);
221 216
222 for (; vstart < vend ; vstart += PAGE_SIZE) { 217 for (; start < end ; start += PAGE_SIZE) {
223 dprintk(KERN_INFO "sticking %lx into the pool!\n", vstart); 218 dprintk(KERN_INFO "sticking %lx into the pool!\n", start);
224 gen_pool_free(uncached_pool[node], vstart, PAGE_SIZE); 219 gen_pool_free(uncached_pool[node], start, PAGE_SIZE);
225 } 220 }
226 221
227 return 0; 222 return 0;