The patch titled
x86-64: Calgary: abstract how we find the iommu_table for a device
has been added to the -mm tree. Its filename is
x86-64-calgary-abstract-how-we-find-the-iommu_table-for-a-device.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86-64: Calgary: abstract how we find the iommu_table for a device
From: Muli Ben-Yehuda <muli@xxxxxxxxxx>
... in preparation for doing it differently for CalIOC2.
Signed-off-by: Muli Ben-Yehuda <muli@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86_64/kernel/pci-calgary.c | 21 ++++++++++++++-------
1 files changed, 14 insertions(+), 7 deletions(-)
diff -puN arch/x86_64/kernel/pci-calgary.c~x86-64-calgary-abstract-how-we-find-the-iommu_table-for-a-device arch/x86_64/kernel/pci-calgary.c
--- a/arch/x86_64/kernel/pci-calgary.c~x86-64-calgary-abstract-how-we-find-the-iommu_table-for-a-device
+++ a/arch/x86_64/kernel/pci-calgary.c
@@ -344,6 +344,15 @@ static void iommu_free(struct iommu_tabl
spin_unlock_irqrestore(&tbl->it_lock, flags);
}
+static inline struct iommu_table *find_iommu_table(struct device *dev)
+{
+ struct iommu_table *tbl;
+
+ tbl = to_pci_dev(dev)->bus->self->sysdata;
+
+ return tbl;
+}
+
static void __calgary_unmap_sg(struct iommu_table *tbl,
struct scatterlist *sglist, int nelems, int direction)
{
@@ -365,7 +374,7 @@ void calgary_unmap_sg(struct device *dev
int nelems, int direction)
{
unsigned long flags;
- struct iommu_table *tbl = to_pci_dev(dev)->bus->self->sysdata;
+ struct iommu_table *tbl = find_iommu_table(dev);
if (!translate_phb(to_pci_dev(dev)))
return;
@@ -394,7 +403,7 @@ static int calgary_nontranslate_map_sg(s
int calgary_map_sg(struct device *dev, struct scatterlist *sg,
int nelems, int direction)
{
- struct iommu_table *tbl = to_pci_dev(dev)->bus->self->sysdata;
+ struct iommu_table *tbl = find_iommu_table(dev);
unsigned long flags;
unsigned long vaddr;
unsigned int npages;
@@ -448,7 +457,7 @@ dma_addr_t calgary_map_single(struct dev
dma_addr_t dma_handle = bad_dma_address;
unsigned long uaddr;
unsigned int npages;
- struct iommu_table *tbl = to_pci_dev(dev)->bus->self->sysdata;
+ struct iommu_table *tbl = find_iommu_table(dev);
uaddr = (unsigned long)vaddr;
npages = num_dma_pages(uaddr, size);
@@ -464,7 +473,7 @@ dma_addr_t calgary_map_single(struct dev
void calgary_unmap_single(struct device *dev, dma_addr_t dma_handle,
size_t size, int direction)
{
- struct iommu_table *tbl = to_pci_dev(dev)->bus->self->sysdata;
+ struct iommu_table *tbl = find_iommu_table(dev);
unsigned int npages;
if (!translate_phb(to_pci_dev(dev)))
@@ -480,9 +489,7 @@ void* calgary_alloc_coherent(struct devi
void *ret = NULL;
dma_addr_t mapping;
unsigned int npages, order;
- struct iommu_table *tbl;
-
- tbl = to_pci_dev(dev)->bus->self->sysdata;
+ struct iommu_table *tbl = find_iommu_table(dev);
size = PAGE_ALIGN(size); /* size rounded up to full pages */
npages = size >> PAGE_SHIFT;
_
Patches currently in -mm which might be from muli@xxxxxxxxxx are
x86-64-calgary-generalize-calgary_increase_split_completion_timeout.patch
x86-64-calgary-update-copyright-notice.patch
x86-64-calgary-introduce-handle_quirks-for-various-chipset-quirks.patch
x86-64-calgary-introduce-chipset-specific-ops.patch
x86-64-calgary-introduce-chipset-specific-ops-fix.patch
x86-64-calgary-abstract-how-we-find-the-iommu_table-for-a-device.patch
x86-64-calgary-introduce-calioc2-support.patch
x86-64-calgary-add-chip_ops-and-a-quirk-function-for-calioc2.patch
x86-64-calgary-add-chip_ops-and-a-quirk-function-for-calioc2-fix.patch
x86-64-calgary-implement-calioc2-tce-cache-flush-sequence.patch
x86-64-calgary-make-dump_error_regs-a-chip-op.patch
x86-64-calgary-grab-plssr-too-when-a-dma-error-occurs.patch
x86-64-calgary-reserve-tces-with-the-same-address-as-mem-regions.patch
x86-64-calgary-reserve-tces-with-the-same-address-as-mem-regions-fix.patch
x86-64-calgary-cleanup-of-unneeded-macros.patch
x86-64-calgary-tabify-and-trim-trailing-whitespace.patch
x86-64-calgary-only-reserve-the-first-1mb-of-io-space-for-calioc2.patch
x86-64-calgary-tidy-up-debug-printks.patch
oss-trident-massive-whitespace-removal.patch
oss-trident-fix-locking-around-write_voice_regs.patch
oss-trident-replace-deprecated-pci_find_device-with-pci_get_device.patch
-
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