diff options
Diffstat (limited to 'arch/s390/pci/pci.c')
| -rw-r--r-- | arch/s390/pci/pci.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 0b80ac7e158f..70f6c56c8d0f 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -29,6 +29,7 @@ #include <asm/facility.h> #include <asm/pci_insn.h> +#include <asm/pci_clp.h> #define DEBUG /* enable pr_debug */ @@ -436,6 +437,20 @@ static void zpci_free_domain(struct zpci_dev *zdev) spin_unlock(&zpci_domain_lock); } +int zpci_enable_device(struct zpci_dev *zdev) +{ + int rc; + + rc = clp_enable_fh(zdev, ZPCI_NR_DMA_SPACES); + if (rc) + goto out; + pr_info("Enabled fh: 0x%x fid: 0x%x\n", zdev->fh, zdev->fid); + return 0; +out: + return rc; +} +EXPORT_SYMBOL_GPL(zpci_enable_device); + int zpci_create_device(struct zpci_dev *zdev) { int rc; @@ -455,8 +470,15 @@ int zpci_create_device(struct zpci_dev *zdev) if (zdev->state == ZPCI_FN_STATE_STANDBY) return 0; + rc = zpci_enable_device(zdev); + if (rc) + goto out_start; return 0; +out_start: + mutex_lock(&zpci_list_lock); + list_del(&zdev->entry); + mutex_unlock(&zpci_list_lock); out_bus: zpci_free_domain(zdev); out: @@ -489,6 +511,7 @@ int zpci_scan_device(struct zpci_dev *zdev) return 0; out: + clp_disable_fh(zdev); return -EIO; } EXPORT_SYMBOL_GPL(zpci_scan_device); @@ -547,9 +570,14 @@ static int __init pci_base_init(void) if (rc) goto out_mem; + rc = clp_find_pci_devices(); + if (rc) + goto out_find; + zpci_scan_devices(); return 0; +out_find: zpci_mem_exit(); out_mem: return rc; |
