Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (29 commits)
  [POWERPC] Fix rheap alignment problem
  [POWERPC] Use check_legacy_ioport() for ISAPnP
  [POWERPC] Avoid NULL pointer in gpio1_interrupt
  [POWERPC] Enable generic rtc hook for the MPC8349 mITX
  [POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class
  [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot
  [POWERPC] fix spin lock nesting in hvc_iseries
  [POWERPC] EEH failure to mark pci slot as frozen.
  [POWERPC] update powerpc defconfig files after libata kconfig breakage
  [POWERPC] enable sysrq in pmac32_defconfig
  [POWERPC] UPIO_TSI cleanup
  [POWERPC] rewrite mkprep and mkbugboot in sane C
  [POWERPC] maple/pci iomem annotations
  [POWERPC] powerpc oprofile __user annotations
  [POWERPC] cell spufs iomem annotations
  [POWERPC] NULL noise removal: spufs
  [POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c
  [POWERPC] update mpc8349_itx_defconfig and remove some debug settings
  [POWERPC] Always call cede in pseries dedicated idle loop
  [POWERPC] Fix loop logic in irq_alloc_virt()
  ...

1 files changed, 20 insertions, 4 deletions

diff --git a/arch/powerpc/lib/rheap.c b/arch/powerpc/lib/rheap.c
index 31e511856dc..57bf991ccd6 100644
--- a/arch/powerpc/lib/rheap.c
+++ b/arch/powerpc/lib/rheap.c
@@ -423,17 +423,21 @@ void *rh_detach_region(rh_info_t * info, void *start, int size)
 	return (void *)s;
 }
 
-void *rh_alloc(rh_info_t * info, int size, const char *owner)
+void *rh_alloc_align(rh_info_t * info, int size, int alignment, const char *owner)
 {
 	struct list_head *l;
 	rh_block_t *blk;
 	rh_block_t *newblk;
 	void *start;
 
-	/* Validate size */
-	if (size <= 0)
+	/* Validate size, (must be power of two) */
+	if (size <= 0 || (alignment & (alignment - 1)) != 0)
 		return ERR_PTR(-EINVAL);
 
+	/* given alignment larger that default rheap alignment */
+	if (alignment > info->alignment)
+		size += alignment - 1;
+
 	/* Align to configured alignment */
 	size = (size + (info->alignment - 1)) & ~(info->alignment - 1);
 
@@ -476,15 +480,27 @@ void *rh_alloc(rh_info_t * info, int size, const char *owner)
 
 	attach_taken_block(info, newblk);
 
+	/* for larger alignment return fixed up pointer  */
+	/* this is no problem with the deallocator since */
+	/* we scan for pointers that lie in the blocks   */
+	if (alignment > info->alignment)
+		start = (void *)(((unsigned long)start + alignment - 1) &
+				~(alignment - 1));
+
 	return start;
 }
 
+void *rh_alloc(rh_info_t * info, int size, const char *owner)
+{
+	return rh_alloc_align(info, size, info->alignment, owner);
+}
+
 /* allocate at precisely the given address */
 void *rh_alloc_fixed(rh_info_t * info, void *start, int size, const char *owner)
 {
 	struct list_head *l;
 	rh_block_t *blk, *newblk1, *newblk2;
-	unsigned long s, e, m, bs, be;
+	unsigned long s, e, m, bs = 0, be = 0;
 
 	/* Validate size */
 	if (size <= 0)