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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>
112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* starfire.c: Starfire/E10000 support.
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*
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* Copyright (C) 1998 David S. Miller (davem@redhat.com)
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* Copyright (C) 2000 Anton Blanchard (anton@samba.org)
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <asm/page.h>
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#include <asm/oplib.h>
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#include <asm/smp.h>
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#include <asm/upa.h>
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#include <asm/starfire.h>
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/*
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* A few places around the kernel check this to see if
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* they need to call us to do things in a Starfire specific
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* way.
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*/
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int this_is_starfire = 0;
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void check_if_starfire(void)
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{
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phandle ssnode = prom_finddevice("/ssp-serial");
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if (ssnode != 0 && (s32)ssnode != -1)
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this_is_starfire = 1;
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}
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/*
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* Each Starfire board has 32 registers which perform translation
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* and delivery of traditional interrupt packets into the extended
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* Starfire hardware format. Essentially UPAID's now have 2 more
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* bits than in all previous Sun5 systems.
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*/
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struct starfire_irqinfo {
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unsigned long imap_slots[32];
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unsigned long tregs[32];
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struct starfire_irqinfo *next;
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int upaid, hwmid;
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};
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static struct starfire_irqinfo *sflist = NULL;
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/* Beam me up Scott(McNeil)y... */
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void starfire_hookup(int upaid)
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{
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struct starfire_irqinfo *p;
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unsigned long treg_base, hwmid, i;
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p = kmalloc_obj(*p);
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if (!p) {
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prom_printf("starfire_hookup: No memory, this is insane.\n");
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prom_halt();
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}
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treg_base = 0x100fc000000UL;
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hwmid = ((upaid & 0x3c) << 1) |
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((upaid & 0x40) >> 4) |
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(upaid & 0x3);
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p->hwmid = hwmid;
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treg_base += (hwmid << 33UL);
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treg_base += 0x200UL;
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for (i = 0; i < 32; i++) {
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p->imap_slots[i] = 0UL;
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p->tregs[i] = treg_base + (i * 0x10UL);
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/* Lets play it safe and not overwrite existing mappings */
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if (upa_readl(p->tregs[i]) != 0)
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p->imap_slots[i] = 0xdeadbeaf;
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}
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p->upaid = upaid;
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p->next = sflist;
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sflist = p;
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}
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unsigned int starfire_translate(unsigned long imap,
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unsigned int upaid)
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{
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struct starfire_irqinfo *p;
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unsigned int bus_hwmid;
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unsigned int i;
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bus_hwmid = (((unsigned long)imap) >> 33) & 0x7f;
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for (p = sflist; p != NULL; p = p->next)
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if (p->hwmid == bus_hwmid)
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break;
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if (p == NULL) {
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prom_printf("XFIRE: Cannot find irqinfo for imap %016lx\n",
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((unsigned long)imap));
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prom_halt();
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}
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for (i = 0; i < 32; i++) {
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if (p->imap_slots[i] == imap ||
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p->imap_slots[i] == 0UL)
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break;
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}
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if (i == 32) {
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printk("starfire_translate: Are you kidding me?\n");
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panic("Lucy in the sky....");
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}
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p->imap_slots[i] = imap;
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/* map to real upaid */
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upaid = (((upaid & 0x3c) << 1) |
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((upaid & 0x40) >> 4) |
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(upaid & 0x3));
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upa_writel(upaid, p->tregs[i]);
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return i;
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}
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