UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[PATCH] remove tce_cache_blast_stress() 

tce_cache_blast_stress was useful during bringup to stress the IOMMU's
cache flushing. Now that we quiesce DMAs on every cache flush, using
_stress() brings the machine down to its knees once you put it under
load. Remove this debug / bringup code that isn't useful anymore
completely.

Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Muli Ben-Yehuda 2006-09-26 10:52:33 +02:00 committed by Andi Kleen
parent 796e4390e0
commit 4ccf4ae314
1 changed files with 0 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/x86_64/kernel/pci-calgary.c
View File

@ -129,11 +129,6 @@ static void tce_cache_blast(struct iommu_table *tbl);
#ifdef CONFIG_IOMMU_DEBUG #ifdef CONFIG_IOMMU_DEBUG
int debugging __read_mostly = 1; int debugging __read_mostly = 1;
static inline void tce_cache_blast_stress(struct iommu_table *tbl)
{
tce_cache_blast(tbl);
}
static inline unsigned long verify_bit_range(unsigned long* bitmap, static inline unsigned long verify_bit_range(unsigned long* bitmap,
int expected, unsigned long start, unsigned long end) int expected, unsigned long start, unsigned long end)
{ {
@ -153,10 +148,6 @@ static inline unsigned long verify_bit_range(unsigned long* bitmap,
#else /* debugging is disabled */ #else /* debugging is disabled */
int debugging __read_mostly = 0; int debugging __read_mostly = 0;
static inline void tce_cache_blast_stress(struct iommu_table *tbl)
{
}
static inline unsigned long verify_bit_range(unsigned long* bitmap, static inline unsigned long verify_bit_range(unsigned long* bitmap,
int expected, unsigned long start, unsigned long end) int expected, unsigned long start, unsigned long end)
{ {
@ -289,8 +280,6 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
} }
__clear_bit_string(tbl->it_map, entry, npages); __clear_bit_string(tbl->it_map, entry, npages);
tce_cache_blast_stress(tbl);
} }
static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,