*
* The System z PCI code is a rewrite from a prototype by
* the following people (Kudoz!):
- * Alexander Schmidt <alexschm@de.ibm.com>
- * Christoph Raisch <raisch@de.ibm.com>
- * Hannes Hering <hering2@de.ibm.com>
- * Hoang-Nam Nguyen <hnguyen@de.ibm.com>
- * Jan-Bernd Themann <themann@de.ibm.com>
- * Stefan Roscher <stefan.roscher@de.ibm.com>
- * Thomas Klein <tklein@de.ibm.com>
+ * Alexander Schmidt
+ * Christoph Raisch
+ * Hannes Hering
+ * Hoang-Nam Nguyen
+ * Jan-Bernd Themann
+ * Stefan Roscher
+ * Thomas Klein
*/
#define COMPONENT "zPCI"
static int __read_mostly aisb_max;
static struct kmem_cache *zdev_irq_cache;
+static struct kmem_cache *zdev_fmb_cache;
+
+debug_info_t *pci_debug_msg_id;
+debug_info_t *pci_debug_err_id;
static inline int irq_to_msi_nr(unsigned int irq)
{
u64 base;
u64 limit;
u64 iota;
+ u64 fmb_addr;
};
static int mod_pci(struct zpci_dev *zdev, int fn, u8 dmaas, struct mod_pci_args *args)
fib->pba = args->base;
fib->pal = args->limit;
fib->iota = args->iota;
+ fib->fmb_addr = args->fmb_addr;
rc = mpcifc_instr(req, fib);
free_page((unsigned long) fib);
int zpci_register_ioat(struct zpci_dev *zdev, u8 dmaas,
u64 base, u64 limit, u64 iota)
{
- struct mod_pci_args args = { base, limit, iota };
+ struct mod_pci_args args = { base, limit, iota, 0 };
WARN_ON_ONCE(iota & 0x3fff);
args.iota |= ZPCI_IOTA_RTTO_FLAG;
/* Modify PCI: Unregister I/O address translation parameters */
int zpci_unregister_ioat(struct zpci_dev *zdev, u8 dmaas)
{
- struct mod_pci_args args = { 0, 0, 0 };
+ struct mod_pci_args args = { 0, 0, 0, 0 };
return mod_pci(zdev, ZPCI_MOD_FC_DEREG_IOAT, dmaas, &args);
}
/* Modify PCI: Unregister adapter interruptions */
static int zpci_unregister_airq(struct zpci_dev *zdev)
{
- struct mod_pci_args args = { 0, 0, 0 };
+ struct mod_pci_args args = { 0, 0, 0, 0 };
return mod_pci(zdev, ZPCI_MOD_FC_DEREG_INT, 0, &args);
}
+/* Modify PCI: Set PCI function measurement parameters */
+int zpci_fmb_enable_device(struct zpci_dev *zdev)
+{
+ struct mod_pci_args args = { 0, 0, 0, 0 };
+
+ if (zdev->fmb)
+ return -EINVAL;
+
+ zdev->fmb = kmem_cache_alloc(zdev_fmb_cache, GFP_KERNEL);
+ if (!zdev->fmb)
+ return -ENOMEM;
+ memset(zdev->fmb, 0, sizeof(*zdev->fmb));
+ WARN_ON((u64) zdev->fmb & 0xf);
+
+ args.fmb_addr = virt_to_phys(zdev->fmb);
+ return mod_pci(zdev, ZPCI_MOD_FC_SET_MEASURE, 0, &args);
+}
+
+/* Modify PCI: Disable PCI function measurement */
+int zpci_fmb_disable_device(struct zpci_dev *zdev)
+{
+ struct mod_pci_args args = { 0, 0, 0, 0 };
+ int rc;
+
+ if (!zdev->fmb)
+ return -EINVAL;
+
+ /* Function measurement is disabled if fmb address is zero */
+ rc = mod_pci(zdev, ZPCI_MOD_FC_SET_MEASURE, 0, &args);
+
+ kmem_cache_free(zdev_fmb_cache, zdev->fmb);
+ zdev->fmb = NULL;
+ return rc;
+}
+
#define ZPCI_PCIAS_CFGSPC 15
static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len)
return 0;
}
+/* combine single writes by using store-block insn */
+void __iowrite64_copy(void __iomem *to, const void *from, size_t count)
+{
+ zpci_memcpy_toio(to, from, count);
+}
+
/* Create a virtual mapping cookie for a PCI BAR */
void __iomem *pci_iomap(struct pci_dev *pdev, int bar, unsigned long max)
{
return ERR_PTR(-ENOMEM);
/* Alloc aibv & callback space */
- zdev->irq_map = kmem_cache_alloc(zdev_irq_cache, GFP_KERNEL);
+ zdev->irq_map = kmem_cache_zalloc(zdev_irq_cache, GFP_KERNEL);
if (!zdev->irq_map)
goto error;
- memset(zdev->irq_map, 0, sizeof(*zdev->irq_map));
WARN_ON((u64) zdev->irq_map & 0xff);
return zdev;
dev_info(&pdev->dev, "Removing device %u\n", zdev->domain);
zdev->state = ZPCI_FN_STATE_CONFIGURED;
zpci_dma_exit_device(zdev);
+ zpci_fmb_disable_device(zdev);
+ zpci_sysfs_remove_device(&pdev->dev);
zpci_unmap_resources(pdev);
list_del(&zdev->entry); /* can be called from init */
zdev->pdev = NULL;
pdev->sysdata = NULL;
}
+int pcibios_add_platform_entries(struct pci_dev *pdev)
+{
+ return zpci_sysfs_add_device(&pdev->dev);
+}
+
int zpci_request_irq(unsigned int irq, irq_handler_t handler, void *data)
{
int msi_nr = irq_to_msi_nr(irq);
kfree(bucket);
}
+void zpci_debug_info(struct zpci_dev *zdev, struct seq_file *m)
+{
+ if (!zdev)
+ return;
+
+ seq_printf(m, "global irq retries: %u\n", atomic_read(&irq_retries));
+ seq_printf(m, "aibv[0]:%016lx aibv[1]:%016lx aisb:%016lx\n",
+ get_imap(0)->aibv, get_imap(1)->aibv, *bucket->aisb);
+}
+
static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned long size,
unsigned long flags, int domain)
{
goto out;
}
+ zpci_debug_init_device(zdev);
+ zpci_fmb_enable_device(zdev);
zpci_map_resources(zdev);
pci_bus_add_devices(zdev->bus);
if (!zdev_irq_cache)
goto error_zdev;
+ zdev_fmb_cache = kmem_cache_create("PCI_FMB_cache", sizeof(struct zpci_fmb),
+ 16, 0, NULL);
+ if (!zdev_fmb_cache)
+ goto error_fmb;
+
/* TODO: use realloc */
zpci_iomap_start = kzalloc(ZPCI_IOMAP_MAX_ENTRIES * sizeof(*zpci_iomap_start),
GFP_KERNEL);
return 0;
error_iomap:
+ kmem_cache_destroy(zdev_fmb_cache);
+error_fmb:
kmem_cache_destroy(zdev_irq_cache);
error_zdev:
return -ENOMEM;
{
kfree(zpci_iomap_start);
kmem_cache_destroy(zdev_irq_cache);
+ kmem_cache_destroy(zdev_fmb_cache);
}
unsigned int pci_probe = 1;
test_facility(69), test_facility(70),
test_facility(71));
+ rc = zpci_debug_init();
+ if (rc)
+ return rc;
+
rc = zpci_mem_init();
if (rc)
goto out_mem;
out_hash:
zpci_mem_exit();
out_mem:
+ zpci_debug_exit();
return rc;
}
subsys_initcall(pci_base_init);
projects / cascardo / linux.git / blobdiff