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linux-sg2042
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powerpc: don't use ioremap_prot() nor __ioremap() unless really needed. 

In many places, ioremap_prot() and __ioremap() can be replaced with
higher level functions like ioremap(), ioremap_coherent(),
ioremap_cache(), ioremap_wc() ...

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2018-10-09 13:51:41 +00:00 committed by Michael Ellerman
parent 402a5698b4
commit aa91796ec4
6 changed files with 10 additions and 11 deletions
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2
arch/powerpc/kernel/btext.c
View File

@ -163,7 +163,7 @@ void btext_map(void)
offset = ((unsigned long) dispDeviceBase) - base;
size = dispDeviceRowBytes * dispDeviceRect[3] + offset
+ dispDeviceRect[0];
vbase = __ioremap(base, size, pgprot_val(pgprot_noncached_wc(__pgprot(0))));
vbase = ioremap_wc(base, size);
if (!vbase)
return;
logicalDisplayBase = vbase + offset;

2
arch/powerpc/kernel/crash_dump.c
View File

@ -110,7 +110,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
vaddr = __va(paddr);
csize = copy_oldmem_vaddr(vaddr, buf, csize, offset, userbuf);
} else {
vaddr = __ioremap(paddr, PAGE_SIZE, 0);
vaddr = ioremap_cache(paddr, PAGE_SIZE);
csize = copy_oldmem_vaddr(vaddr, buf, csize, offset, userbuf);
iounmap(vaddr);
}

4
arch/powerpc/platforms/85xx/smp.c
View File

@ -216,8 +216,8 @@ static int smp_85xx_start_cpu(int cpu)
/* Map the spin table */
if (ioremappable)
spin_table = ioremap_prot(*cpu_rel_addr,
sizeof(struct epapr_spin_table), _PAGE_COHERENT);
spin_table = ioremap_coherent(*cpu_rel_addr,
sizeof(struct epapr_spin_table));
else
spin_table = phys_to_virt(*cpu_rel_addr);

2
arch/powerpc/platforms/pasemi/dma_lib.c
View File

@ -576,7 +576,7 @@ int pasemi_dma_init(void)
res.start = 0xfd800000;
res.end = res.start + 0x1000;
}
dma_status = __ioremap(res.start, resource_size(&res), 0);
dma_status = ioremap_cache(res.start, resource_size(&res));
pci_dev_put(iob_pdev);
for (i = 0; i < MAX_TXCH; i++)

3
arch/powerpc/platforms/ps3/spu.c
View File

@ -215,8 +215,7 @@ static int __init setup_areas(struct spu *spu)
goto fail_ioremap;
}
spu->local_store = (__force void *)ioremap_prot(spu->local_store_phys,
LS_SIZE, pgprot_val(pgprot_noncached_wc(__pgprot(0))));
spu->local_store = (__force void *)ioremap_wc(spu->local_store_phys, LS_SIZE);
if (!spu->local_store) {
pr_debug("%s:%d: ioremap local_store failed\n",

8
arch/powerpc/sysdev/fsl_85xx_cache_sram.c
View File

@ -107,11 +107,11 @@ int __init instantiate_cache_sram(struct platform_device *dev,
goto out_free;
}
cache_sram->base_virt = ioremap_prot(cache_sram->base_phys,
cache_sram->size, _PAGE_COHERENT | PAGE_KERNEL);
cache_sram->base_virt = ioremap_coherent(cache_sram->base_phys,
cache_sram->size);
if (!cache_sram->base_virt) {
dev_err(&dev->dev, "%pOF: ioremap_prot failed\n",
dev->dev.of_node);
dev_err(&dev->dev, "%pOF: ioremap_coherent failed\n",
dev->dev.of_node);
ret = -ENOMEM;
goto out_release;
}