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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

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Pull sparc updates from David Miller:
 "The PowerPC folks have a really nice scalable IOMMU pool allocator
  that we wanted to make use of for sparc.  So here we have a series
  that abstracts out their code into a common layer that anyone can make
  use of.

  Sparc is converted, and the PowerPC folks have reviewed and ACK'd this
  series and plan to convert PowerPC over as well"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  iommu-common: Fix PARISC compile-time warnings
  sparc: Make LDC use common iommu poll management functions
  sparc: Make sparc64 use scalable lib/iommu-common.c functions
  sparc: Break up monolithic iommu table/lock into finer graularity pools and lock
This commit is contained in:
Linus Torvalds
2015-04-17 16:19:26 -04:00
parent 6b6e177d63 cb97201cb0
commit e2fdae7e7c
8 changed files with 536 additions and 324 deletions
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7
arch/sparc/include/asm/iommu_64.h
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@@ -16,6 +16,7 @@
#define IOPTE_WRITE 0x0000000000000002UL
#define IOMMU_NUM_CTXS 4096
#include <linux/iommu-common.h>
struct iommu_arena {
unsigned long *map;
@@ -24,11 +25,10 @@ struct iommu_arena {
};
struct iommu {
struct iommu_table tbl;
spinlock_t lock;
struct iommu_arena arena;
void (*flush_all)(struct iommu *);
u32 dma_addr_mask;
iopte_t *page_table;
u32 page_table_map_base;
unsigned long iommu_control;
unsigned long iommu_tsbbase;
unsigned long iommu_flush;
@@ -40,7 +40,6 @@ struct iommu {
unsigned long dummy_page_pa;
unsigned long ctx_lowest_free;
DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS);
u32 dma_addr_mask;
};
struct strbuf {