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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>
124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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** linux/amiga/chipram.c
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**
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** Modified 03-May-94 by Geert Uytterhoeven <geert@linux-m68k.org>
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** - 64-bit aligned allocations for full AGA compatibility
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**
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** Rewritten 15/9/2000 by Geert to use resource management
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/module.h>
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#include <asm/atomic.h>
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#include <asm/page.h>
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#include <asm/amigahw.h>
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unsigned long amiga_chip_size;
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EXPORT_SYMBOL(amiga_chip_size);
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static struct resource chipram_res = {
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.name = "Chip RAM", .start = CHIP_PHYSADDR
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};
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static atomic_t chipavail;
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void __init amiga_chip_init(void)
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{
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if (!AMIGAHW_PRESENT(CHIP_RAM))
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return;
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chipram_res.end = CHIP_PHYSADDR + amiga_chip_size - 1;
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request_resource(&iomem_resource, &chipram_res);
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atomic_set(&chipavail, amiga_chip_size);
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}
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void *amiga_chip_alloc(unsigned long size, const char *name)
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{
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struct resource *res;
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void *p;
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res = kzalloc_obj(struct resource);
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if (!res)
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return NULL;
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res->name = name;
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p = amiga_chip_alloc_res(size, res);
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if (!p) {
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kfree(res);
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return NULL;
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}
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return p;
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}
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EXPORT_SYMBOL(amiga_chip_alloc);
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/*
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* Warning:
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* amiga_chip_alloc_res is meant only for drivers that need to
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* allocate Chip RAM before kmalloc() is functional. As a consequence,
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* those drivers must not free that Chip RAM afterwards.
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*/
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void *amiga_chip_alloc_res(unsigned long size, struct resource *res)
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{
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int error;
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/* round up */
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size = PAGE_ALIGN(size);
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pr_debug("amiga_chip_alloc_res: allocate %lu bytes\n", size);
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error = allocate_resource(&chipram_res, res, size, 0, UINT_MAX,
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PAGE_SIZE, NULL, NULL);
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if (error < 0) {
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pr_err("amiga_chip_alloc_res: allocate_resource() failed %d!\n",
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error);
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return NULL;
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}
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atomic_sub(size, &chipavail);
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pr_debug("amiga_chip_alloc_res: returning %pR\n", res);
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return ZTWO_VADDR(res->start);
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}
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void amiga_chip_free(void *ptr)
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{
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unsigned long start = ZTWO_PADDR(ptr);
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struct resource *res;
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unsigned long size;
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res = lookup_resource(&chipram_res, start);
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if (!res) {
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pr_err("amiga_chip_free: trying to free nonexistent region at "
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"%p\n", ptr);
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return;
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}
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size = resource_size(res);
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pr_debug("amiga_chip_free: free %lu bytes at %p\n", size, ptr);
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atomic_add(size, &chipavail);
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release_resource(res);
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kfree(res);
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}
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EXPORT_SYMBOL(amiga_chip_free);
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unsigned long amiga_chip_avail(void)
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{
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unsigned long n = atomic_read(&chipavail);
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pr_debug("amiga_chip_avail : %lu bytes\n", n);
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return n;
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}
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EXPORT_SYMBOL(amiga_chip_avail);
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