#include <linux/module.h>
#include <asm/dma.h>
+#include <asm/sn/intr.h>
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
-#include "pci/pcibus_provider_defs.h"
-#include "pci/pcidev.h"
-#include "pci/pcibr_provider.h"
#define SG_ENT_VIRT_ADDRESS(sg) (page_address((sg)->page) + (sg)->offset)
#define SG_ENT_PHYS_ADDRESS(SG) virt_to_phys(SG_ENT_VIRT_ADDRESS(SG))
* more information.
*/
void *sn_dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t * dma_handle, int flags)
+ dma_addr_t * dma_handle, gfp_t flags)
{
void *cpuaddr;
unsigned long phys_addr;
- struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
+ int node;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
/*
* Allocate the memory.
- * FIXME: We should be doing alloc_pages_node for the node closest
- * to the PCI device.
*/
- if (!(cpuaddr = (void *)__get_free_pages(GFP_ATOMIC, get_order(size))))
+ node = pcibus_to_node(pdev->bus);
+ if (likely(node >=0)) {
+ struct page *p = alloc_pages_node(node, flags, get_order(size));
+
+ if (likely(p))
+ cpuaddr = page_address(p);
+ else
+ return NULL;
+ } else
+ cpuaddr = (void *)__get_free_pages(flags, get_order(size));
+
+ if (unlikely(!cpuaddr))
return NULL;
memset(cpuaddr, 0x0, size);
* resources.
*/
- *dma_handle = pcibr_dma_map(pcidev_info, phys_addr, size,
- SN_PCIDMA_CONSISTENT);
+ *dma_handle = provider->dma_map_consistent(pdev, phys_addr, size,
+ SN_DMA_ADDR_PHYS);
if (!*dma_handle) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
free_pages((unsigned long)cpuaddr, get_order(size));
void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)
{
- struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
- pcibr_dma_unmap(pcidev_info, dma_handle, 0);
+ provider->dma_unmap(pdev, dma_handle, 0);
free_pages((unsigned long)cpu_addr, get_order(size));
}
EXPORT_SYMBOL(sn_dma_free_coherent);
{
dma_addr_t dma_addr;
unsigned long phys_addr;
- struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
phys_addr = __pa(cpu_addr);
- dma_addr = pcibr_dma_map(pcidev_info, phys_addr, size, 0);
+ dma_addr = provider->dma_map(pdev, phys_addr, size, SN_DMA_ADDR_PHYS);
if (!dma_addr) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
return 0;
void sn_dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
int direction)
{
- struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
- pcibr_dma_unmap(pcidev_info, dma_addr, direction);
+
+ provider->dma_unmap(pdev, dma_addr, direction);
}
EXPORT_SYMBOL(sn_dma_unmap_single);
int nhwentries, int direction)
{
int i;
- struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
for (i = 0; i < nhwentries; i++, sg++) {
- pcibr_dma_unmap(pcidev_info, sg->dma_address, direction);
+ provider->dma_unmap(pdev, sg->dma_address, direction);
sg->dma_address = (dma_addr_t) NULL;
sg->dma_length = 0;
}
{
unsigned long phys_addr;
struct scatterlist *saved_sg = sg;
- struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
int i;
BUG_ON(dev->bus != &pci_bus_type);
*/
for (i = 0; i < nhwentries; i++, sg++) {
phys_addr = SG_ENT_PHYS_ADDRESS(sg);
- sg->dma_address = pcibr_dma_map(pcidev_info, phys_addr,
- sg->length, 0);
+ sg->dma_address = provider->dma_map(pdev,
+ phys_addr, sg->length,
+ SN_DMA_ADDR_PHYS);
if (!sg->dma_address) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
{
unsigned long addr;
int ret;
+ struct ia64_sal_retval isrv;
+
+ /*
+ * First, try the SN_SAL_IOIF_PCI_SAFE SAL call which can work
+ * around hw issues at the pci bus level. SGI proms older than
+ * 4.10 don't implment this.
+ */
+
+ SAL_CALL(isrv, SN_SAL_IOIF_PCI_SAFE,
+ pci_domain_nr(bus), bus->number,
+ 0, /* io */
+ 0, /* read */
+ port, size, __pa(val));
+
+ if (isrv.status == 0)
+ return size;
+
+ /*
+ * If the above failed, retry using the SAL_PROBE call which should
+ * be present in all proms (but which cannot work round PCI chipset
+ * bugs). This code is retained for compatability with old
+ * pre-4.10 proms, and should be removed at some point in the future.
+ */
if (!SN_PCIBUS_BUSSOFT(bus))
return -ENODEV;
int ret = size;
unsigned long paddr;
unsigned long *addr;
+ struct ia64_sal_retval isrv;
+
+ /*
+ * First, try the SN_SAL_IOIF_PCI_SAFE SAL call which can work
+ * around hw issues at the pci bus level. SGI proms older than
+ * 4.10 don't implment this.
+ */
+
+ SAL_CALL(isrv, SN_SAL_IOIF_PCI_SAFE,
+ pci_domain_nr(bus), bus->number,
+ 0, /* io */
+ 1, /* write */
+ port, size, __pa(&val));
+
+ if (isrv.status == 0)
+ return size;
+
+ /*
+ * If the above failed, retry using the SAL_PROBE call which should
+ * be present in all proms (but which cannot work round PCI chipset
+ * bugs). This code is retained for compatability with old
+ * pre-4.10 proms, and should be removed at some point in the future.
+ */
if (!SN_PCIBUS_BUSSOFT(bus)) {
ret = -ENODEV;