memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc*

Make it explicit that the caller gets a physical address rather than a
virtual one.

This will also allow using meblock_alloc prefix for memblock allocations
returning virtual address, which is done in the following patches.

The conversion is done using the following semantic patch:

@@
expression e1, e2, e3;
@@
(
- memblock_alloc(e1, e2)
+ memblock_phys_alloc(e1, e2)
|
- memblock_alloc_nid(e1, e2, e3)
+ memblock_phys_alloc_nid(e1, e2, e3)
|
- memblock_alloc_try_nid(e1, e2, e3)
+ memblock_phys_alloc_try_nid(e1, e2, e3)
)

Link: http://lkml.kernel.org/r/1536927045-23536-7-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Serge Semin <fancer.lancer@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 files changed, 15 insertions, 18 deletions

diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index f432054234a4..8be3721d9302 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -1008,9 +1008,7 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
 	/* Count and allocate space for cpu features */
 	of_scan_flat_dt_subnodes(node, count_cpufeatures_subnodes,
 						&nr_dt_cpu_features);
-	dt_cpu_features = __va(
-		memblock_alloc(sizeof(struct dt_cpu_feature)*
-				nr_dt_cpu_features, PAGE_SIZE));
+	dt_cpu_features = __va(memblock_phys_alloc(sizeof(struct dt_cpu_feature) * nr_dt_cpu_features, PAGE_SIZE));
 
 	cpufeatures_setup_start(isa);
 
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 0ee3e6d50f28..f331a0054b3a 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -198,7 +198,7 @@ void __init allocate_paca_ptrs(void)
 	paca_nr_cpu_ids = nr_cpu_ids;
 
 	paca_ptrs_size = sizeof(struct paca_struct *) * nr_cpu_ids;
-	paca_ptrs = __va(memblock_alloc(paca_ptrs_size, 0));
+	paca_ptrs = __va(memblock_phys_alloc(paca_ptrs_size, 0));
 	memset(paca_ptrs, 0x88, paca_ptrs_size);
 }
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index c4d7078e5295..fe758cedb93f 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -126,7 +126,7 @@ static void __init move_device_tree(void)
 	if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
 			overlaps_crashkernel(start, size) ||
 			overlaps_initrd(start, size)) {
-		p = __va(memblock_alloc(size, PAGE_SIZE));
+		p = __va(memblock_phys_alloc(size, PAGE_SIZE));
 		memcpy(p, initial_boot_params, size);
 		initial_boot_params = p;
 		DBG("Moved device tree to 0x%p\n", p);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 9ca9db707bcb..2b56d1f30387 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -460,8 +460,7 @@ void __init smp_setup_cpu_maps(void)
 
 	DBG("smp_setup_cpu_maps()\n");
 
-	cpu_to_phys_id = __va(memblock_alloc(nr_cpu_ids * sizeof(u32),
-							__alignof__(u32)));
+	cpu_to_phys_id = __va(memblock_phys_alloc(nr_cpu_ids * sizeof(u32), __alignof__(u32)));
 	memset(cpu_to_phys_id, 0, nr_cpu_ids * sizeof(u32));
 
 	for_each_node_by_type(dn, "cpu") {
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 8c507be12c3c..81909600013a 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -206,9 +206,9 @@ void __init irqstack_early_init(void)
 	 * as the memblock is limited to lowmem by default */
 	for_each_possible_cpu(i) {
 		softirq_ctx[i] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 		hardirq_ctx[i] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 	}
 }
 
@@ -227,12 +227,12 @@ void __init exc_lvl_early_init(void)
 #endif
 
 		critirq_ctx[hw_cpu] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 #ifdef CONFIG_BOOKE
 		dbgirq_ctx[hw_cpu] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 		mcheckirq_ctx[hw_cpu] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 #endif
 	}
 }
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 693ae1c1acba..f04f15f9d232 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -788,7 +788,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
 	void *nd;
 	int tnid;
 
-	nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
+	nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
 	nd = __va(nd_pa);
 
 	/* report and initialize */
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 5877f5aa8f5d..bda3c6f1bd32 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -50,7 +50,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	if (slab_is_available()) {
 		pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	} else {
-		pte = __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+		pte = __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 		if (pte)
 			clear_page(pte);
 	}
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c
index 38a793bfca37..f6f575bae3bc 100644
--- a/arch/powerpc/mm/ppc_mmu_32.c
+++ b/arch/powerpc/mm/ppc_mmu_32.c
@@ -224,7 +224,7 @@ void __init MMU_init_hw(void)
 	 * Find some memory for the hash table.
 	 */
 	if ( ppc_md.progress ) ppc_md.progress("hash:find piece", 0x322);
-	Hash = __va(memblock_alloc(Hash_size, Hash_size));
+	Hash = __va(memblock_phys_alloc(Hash_size, Hash_size));
 	memset(Hash, 0, Hash_size);
 	_SDR1 = __pa(Hash) | SDR1_LOW_BITS;
 
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index f06c83f321e6..f2971522fb4a 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -213,7 +213,7 @@ static int __init iob_init(struct device_node *dn)
 	pr_info("IOBMAP L2 allocated at: %p\n", iob_l2_base);
 
 	/* Allocate a spare page to map all invalid IOTLB pages. */
-	tmp = memblock_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE);
+	tmp = memblock_phys_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE);
 	if (!tmp)
 		panic("IOBMAP: Cannot allocate spare page!");
 	/* Empty l1 is marked invalid */
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index a4641515956f..beed86f4224b 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -171,7 +171,7 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
 	/*
 	 * Allocate a buffer to hold the MC recoverable ranges.
 	 */
-	mc_recoverable_range =__va(memblock_alloc(size, __alignof__(u64)));
+	mc_recoverable_range =__va(memblock_phys_alloc(size, __alignof__(u64)));
 	memset(mc_recoverable_range, 0, size);
 
 	for (i = 0; i < mc_recoverable_range_len; i++) {
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 5ca3e22d0512..a5b40d1460f1 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -261,7 +261,7 @@ static void allocate_dart(void)
 	 * that to work around what looks like a problem with the HT bridge
 	 * prefetching into invalid pages and corrupting data
 	 */
-	tmp = memblock_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
+	tmp = memblock_phys_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
 	dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) &
 					 DARTMAP_RPNMASK);