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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
134 lines
3.2 KiB
C
134 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Hardware driver for NI Mite PCI interface chip,
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* adapted from COMEDI
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*
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* Copyright (C) 1997-8 David A. Schleef
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* Copyright (C) 2002 Frank Mori Hess
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*
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* The PCI-MIO E series driver was originally written by
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* Tomasz Motylewski <...>, and ported to comedi by ds.
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*
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* References for specifications:
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*
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* 321747b.pdf Register Level Programmer Manual (obsolete)
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* 321747c.pdf Register Level Programmer Manual (new)
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* DAQ-STC reference manual
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*
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* Other possibly relevant info:
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*
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* 320517c.pdf User manual (obsolete)
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* 320517f.pdf User manual (new)
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* 320889a.pdf delete
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* 320906c.pdf maximum signal ratings
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* 321066a.pdf about 16x
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* 321791a.pdf discontinuation of at-mio-16e-10 rev. c
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* 321808a.pdf about at-mio-16e-10 rev P
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* 321837a.pdf discontinuation of at-mio-16de-10 rev d
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* 321838a.pdf about at-mio-16de-10 rev N
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/delay.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/io.h>
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#include <linux/slab.h>
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#include "mite.h"
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#define PCI_MITE_SIZE 4096
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#define PCI_DAQ_SIZE 4096
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struct mite_struct *mite_devices;
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#define TOP_OF_PAGE(x) ((x) | (~(PAGE_MASK)))
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void mite_init(void)
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{
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struct pci_dev *pcidev;
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struct mite_struct *mite;
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for (pcidev = pci_get_device(PCI_VENDOR_ID_NATINST, PCI_ANY_ID, NULL);
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pcidev;
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pcidev = pci_get_device(PCI_VENDOR_ID_NATINST, PCI_ANY_ID, pcidev)) {
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mite = kzalloc_obj(*mite);
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if (!mite)
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return;
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mite->pcidev = pcidev;
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pci_dev_get(mite->pcidev);
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mite->next = mite_devices;
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mite_devices = mite;
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}
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}
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int mite_setup(struct mite_struct *mite)
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{
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u32 addr;
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if (pci_enable_device(mite->pcidev)) {
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pr_err("mite: error enabling mite.\n");
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return -EIO;
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}
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pci_set_master(mite->pcidev);
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if (pci_request_regions(mite->pcidev, "mite")) {
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pr_err("mite: failed to request mite io regions.\n");
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return -EIO;
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}
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addr = pci_resource_start(mite->pcidev, 0);
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mite->mite_phys_addr = addr;
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mite->mite_io_addr = ioremap(addr, pci_resource_len(mite->pcidev, 0));
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if (!mite->mite_io_addr) {
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pr_err("mite: failed to remap mite io memory address.\n");
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return -ENOMEM;
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}
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addr = pci_resource_start(mite->pcidev, 1);
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mite->daq_phys_addr = addr;
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mite->daq_io_addr = ioremap(mite->daq_phys_addr, pci_resource_len(mite->pcidev, 1));
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if (!mite->daq_io_addr) {
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pr_err("mite: failed to remap daq io memory address.\n");
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return -ENOMEM;
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}
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writel(mite->daq_phys_addr | WENAB, mite->mite_io_addr + MITE_IODWBSR);
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mite->used = 1;
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return 0;
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}
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void mite_cleanup(void)
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{
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struct mite_struct *mite, *next;
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for (mite = mite_devices; mite; mite = next) {
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next = mite->next;
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if (mite->pcidev)
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pci_dev_put(mite->pcidev);
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kfree(mite);
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}
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}
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void mite_unsetup(struct mite_struct *mite)
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{
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if (!mite)
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return;
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if (mite->mite_io_addr) {
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iounmap(mite->mite_io_addr);
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mite->mite_io_addr = NULL;
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}
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if (mite->daq_io_addr) {
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iounmap(mite->daq_io_addr);
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mite->daq_io_addr = NULL;
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}
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if (mite->mite_phys_addr) {
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pci_release_regions(mite->pcidev);
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pci_disable_device(mite->pcidev);
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mite->mite_phys_addr = 0;
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}
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mite->used = 0;
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}
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