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[SPARC64]: Probe PCI bus using OF device tree.

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Almost entirely taken from the 64-bit PowerPC PCI code.

This allowed to eliminate a ton of cruft from the sparc64
PCI layer.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-02-28 23:35:04 -08:00
parent deb66c4521
commit a2fb23af1c
10 changed files with 426 additions and 1063 deletions
Download patch file Download diff file Expand all files Collapse all files

47
arch/sparc64/kernel/pci_iommu.c
View file

@ -220,7 +220,6 @@ static inline void iommu_free_ctx(struct pci_iommu *iommu, int ctx)
*/
static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp, gfp_t gfp)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, first_page;
@ -237,8 +236,7 @@ static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr
return NULL;
memset((char *)first_page, 0, PAGE_SIZE << order);
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
iommu = pdev->dev.archdata.iommu;
spin_lock_irqsave(&iommu->lock, flags);
iopte = alloc_npages(iommu, size >> IO_PAGE_SHIFT);
@ -268,14 +266,12 @@ static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr
/* Free and unmap a consistent DMA translation. */
static void pci_4u_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_t dvma)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, npages;
npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
iommu = pdev->dev.archdata.iommu;
iopte = iommu->page_table +
((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
@ -295,7 +291,6 @@ static void pci_4u_free_consistent(struct pci_dev *pdev, size_t size, void *cpu,
*/
static dma_addr_t pci_4u_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direction)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
iopte_t *base;
@ -304,9 +299,8 @@ static dma_addr_t pci_4u_map_single(struct pci_dev *pdev, void *ptr, size_t sz,
u32 bus_addr, ret;
unsigned long iopte_protection;
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
iommu = pdev->dev.archdata.iommu;
strbuf = pdev->dev.archdata.stc;
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
@ -416,7 +410,6 @@ do_flush_sync:
/* Unmap a single streaming mode DMA translation. */
static void pci_4u_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int direction)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
iopte_t *base;
@ -428,9 +421,8 @@ static void pci_4u_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_
return;
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
iommu = pdev->dev.archdata.iommu;
strbuf = pdev->dev.archdata.stc;
npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
@ -549,7 +541,6 @@ static inline void fill_sg(iopte_t *iopte, struct scatterlist *sg,
*/
static int pci_4u_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
unsigned long flags, ctx, npages, iopte_protection;
@ -570,9 +561,8 @@ static int pci_4u_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int n
return 1;
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
iommu = pdev->dev.archdata.iommu;
strbuf = pdev->dev.archdata.stc;
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
@ -636,7 +626,6 @@ bad_no_ctx:
/* Unmap a set of streaming mode DMA translations. */
static void pci_4u_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
iopte_t *base;
@ -648,9 +637,8 @@ static void pci_4u_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, in
WARN_ON(1);
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
iommu = pdev->dev.archdata.iommu;
strbuf = pdev->dev.archdata.stc;
bus_addr = sglist->dma_address & IO_PAGE_MASK;
@ -696,14 +684,12 @@ static void pci_4u_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, in
*/
static void pci_4u_dma_sync_single_for_cpu(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int direction)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
unsigned long flags, ctx, npages;
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
iommu = pdev->dev.archdata.iommu;
strbuf = pdev->dev.archdata.stc;
if (!strbuf->strbuf_enabled)
return;
@ -736,15 +722,13 @@ static void pci_4u_dma_sync_single_for_cpu(struct pci_dev *pdev, dma_addr_t bus_
*/
static void pci_4u_dma_sync_sg_for_cpu(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
unsigned long flags, ctx, npages, i;
u32 bus_addr;
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
iommu = pdev->dev.archdata.iommu;
strbuf = pdev->dev.archdata.stc;
if (!strbuf->strbuf_enabled)
return;
@ -809,13 +793,12 @@ static void ali_sound_dma_hack(struct pci_dev *pdev, int set_bit)
int pci_dma_supported(struct pci_dev *pdev, u64 device_mask)
{
struct pcidev_cookie *pcp = pdev->sysdata;
u64 dma_addr_mask;
if (pdev == NULL) {
dma_addr_mask = 0xffffffff;
} else {
struct pci_iommu *iommu = pcp->pbm->iommu;
struct pci_iommu *iommu = pdev->dev.archdata.iommu;
dma_addr_mask = iommu->dma_addr_mask;