summaryrefslogtreecommitdiffstats
path: root/arch/alpha/kernel/pci-noop.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/alpha/kernel/pci-noop.c')
-rw-r--r--arch/alpha/kernel/pci-noop.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
deleted file mode 100644
index ae82061edae9..000000000000
--- a/arch/alpha/kernel/pci-noop.c
+++ /dev/null
@@ -1,113 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/alpha/kernel/pci-noop.c
- *
- * Stub PCI interfaces for Jensen-specific kernels.
- */
-
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/memblock.h>
-#include <linux/gfp.h>
-#include <linux/capability.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/dma-mapping.h>
-#include <linux/scatterlist.h>
-#include <linux/syscalls.h>
-
-#include "proto.h"
-
-
-/*
- * The PCI controller list.
- */
-
-struct pci_controller *hose_head, **hose_tail = &hose_head;
-struct pci_controller *pci_isa_hose;
-
-
-struct pci_controller * __init
-alloc_pci_controller(void)
-{
- struct pci_controller *hose;
-
- hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
- if (!hose)
- panic("%s: Failed to allocate %zu bytes\n", __func__,
- sizeof(*hose));
-
- *hose_tail = hose;
- hose_tail = &hose->next;
-
- return hose;
-}
-
-struct resource * __init
-alloc_resource(void)
-{
- void *ptr = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
-
- if (!ptr)
- panic("%s: Failed to allocate %zu bytes\n", __func__,
- sizeof(struct resource));
-
- return ptr;
-}
-
-SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
- unsigned long, dfn)
-{
- struct pci_controller *hose;
-
- /* from hose or from bus.devfn */
- if (which & IOBASE_FROM_HOSE) {
- for (hose = hose_head; hose; hose = hose->next)
- if (hose->index == bus)
- break;
- if (!hose)
- return -ENODEV;
- } else {
- /* Special hook for ISA access. */
- if (bus == 0 && dfn == 0)
- hose = pci_isa_hose;
- else
- return -ENODEV;
- }
-
- switch (which & ~IOBASE_FROM_HOSE) {
- case IOBASE_HOSE:
- return hose->index;
- case IOBASE_SPARSE_MEM:
- return hose->sparse_mem_base;
- case IOBASE_DENSE_MEM:
- return hose->dense_mem_base;
- case IOBASE_SPARSE_IO:
- return hose->sparse_io_base;
- case IOBASE_DENSE_IO:
- return hose->dense_io_base;
- case IOBASE_ROOT_BUS:
- return hose->bus->number;
- }
-
- return -EOPNOTSUPP;
-}
-
-SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
- unsigned long, off, unsigned long, len, void __user *, buf)
-{
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- else
- return -ENODEV;
-}
-
-SYSCALL_DEFINE5(pciconfig_write, unsigned long, bus, unsigned long, dfn,
- unsigned long, off, unsigned long, len, void __user *, buf)
-{
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- else
- return -ENODEV;
-}