Merge branch 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:
 "The most important changes in this patch set are:

   - DMA-related cleanups for parisc with the aim to move anything not
     required by drivers out of <asm/dma-mapping.h>, by Christoph
     Hellwig

   - Switch to memblock_alloc(), by Mike Rapoport

   - Makefile cleanups by Masahiro Yamada

   - Switch to bust_spinlocks(), by Sergey Senozhatsky

   - Improved initial SMP affinity selection for IRQs

   - Added IPI- and rescheduling interrupts in /proc/interrupts output"

* 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (21 commits)
  parisc: use memblock_alloc() instead of custom get_memblock()
  parisc: Add constants for various PDC firmware calls
  parisc: Add constant for PDC_PAT_COMPLEX firmware call
  parisc: Show machine product number during boot
  parisc: Add constants for PDC_RELOCATE PDC call
  parisc: Add PDC_CRASH_PREP PDC function number
  parisc: Use F_EXTEND() macro in iosapic code
  parisc: remove the HBA_DATA macro
  parisc/lba_pci: use container_of in LBA_DEV
  parisc/dino: use container_of in DINO_DEV
  parisc: properly type the return value of parisc_walk_tree
  parisc: properly type the iommu field in struct pci_hba_data
  parisc: turn GET_IOC into an inline function
  parisc: move internal implementation details out of <asm/dma-mapping.h>
  parisc: don't include <asm/cacheflush.h> in <asm/dma-mapping.h>
  parisc: remove meaningless ccflags-y in arch/parisc/boot/Makefile
  parisc: replace oops_in_progress manipulation with bust_spinlocks()
  parisc: Improve initial IRQ to CPU assignment
  parisc: Count IPI function call interrupts
  parisc: Show rescheduling interrupts on SMP machines only
  ...

1 files changed, 19 insertions, 33 deletions

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 059187a3ded7..d0b166256f1a 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -79,36 +79,6 @@ static struct resource sysram_resources[MAX_PHYSMEM_RANGES] __read_mostly;
 physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __read_mostly;
 int npmem_ranges __read_mostly;
 
-/*
- * get_memblock() allocates pages via memblock.
- * We can't use memblock_find_in_range(0, KERNEL_INITIAL_SIZE) here since it
- * doesn't allocate from bottom to top which is needed because we only created
- * the initial mapping up to KERNEL_INITIAL_SIZE in the assembly bootup code.
- */
-static void * __init get_memblock(unsigned long size)
-{
-	static phys_addr_t search_addr __initdata;
-	phys_addr_t phys;
-
-	if (!search_addr)
-		search_addr = PAGE_ALIGN(__pa((unsigned long) &_end));
-	search_addr = ALIGN(search_addr, size);
-	while (!memblock_is_region_memory(search_addr, size) ||
-		memblock_is_region_reserved(search_addr, size)) {
-		search_addr += size;
-	}
-	phys = search_addr;
-
-	if (phys)
-		memblock_reserve(phys, size);
-	else
-		panic("get_memblock() failed.\n");
-
-	memset(__va(phys), 0, size);
-
-	return __va(phys);
-}
-
 #ifdef CONFIG_64BIT
 #define MAX_MEM         (~0UL)
 #else /* !CONFIG_64BIT */
@@ -321,6 +291,13 @@ static void __init setup_bootmem(void)
 			max_pfn = start_pfn + npages;
 	}
 
+	/*
+	 * We can't use memblock top-down allocations because we only
+	 * created the initial mapping up to KERNEL_INITIAL_SIZE in
+	 * the assembly bootup code.
+	 */
+	memblock_set_bottom_up(true);
+
 	/* IOMMU is always used to access "high mem" on those boxes
 	 * that can support enough mem that a PCI device couldn't
 	 * directly DMA to any physical addresses.
@@ -442,7 +419,10 @@ static void __init map_pages(unsigned long start_vaddr,
 		 */
 
 		if (!pmd) {
-			pmd = (pmd_t *) get_memblock(PAGE_SIZE << PMD_ORDER);
+			pmd = memblock_alloc(PAGE_SIZE << PMD_ORDER,
+					     PAGE_SIZE << PMD_ORDER);
+			if (!pmd)
+				panic("pmd allocation failed.\n");
 			pmd = (pmd_t *) __pa(pmd);
 		}
 
@@ -461,7 +441,10 @@ static void __init map_pages(unsigned long start_vaddr,
 
 			pg_table = (pte_t *)pmd_address(*pmd);
 			if (!pg_table) {
-				pg_table = (pte_t *) get_memblock(PAGE_SIZE);
+				pg_table = memblock_alloc(PAGE_SIZE,
+							  PAGE_SIZE);
+				if (!pg_table)
+					panic("page table allocation failed\n");
 				pg_table = (pte_t *) __pa(pg_table);
 			}
 
@@ -700,7 +683,10 @@ static void __init pagetable_init(void)
 	}
 #endif
 
-	empty_zero_page = get_memblock(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+	if (!empty_zero_page)
+		panic("zero page allocation failed.\n");
+
 }
 
 static void __init gateway_init(void)