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dma-debug: move initialization to common code

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Most mainstream architectures are using 65536 entries, so lets stick to
that.  If someone is really desperate to override it that can still be
done through <asm/dma-mapping.h>, but I'd rather see a really good
rationale for that.

dma_debug_init is now called as a core_initcall, which for many
architectures means much earlier, and provides dma-debug functionality
earlier in the boot process.  This should be safe as it only relies
on the memory allocator already being available.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
This commit is contained in:
Christoph Hellwig 2018-04-16 17:22:28 +02:00
parent 325ef1857f
commit 15b28bbcd5
17 changed files with 14 additions and 143 deletions
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2
arch/sparc/kernel/Makefile
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@ -74,8 +74,6 @@ obj-$(CONFIG_SPARC64) += pcr.o
obj-$(CONFIG_SPARC64) += nmi.o
obj-$(CONFIG_SPARC64_SMP) += cpumap.o
obj-y += dma.o
obj-$(CONFIG_PCIC_PCI) += pcic.o
obj-$(CONFIG_LEON_PCI) += leon_pci.o
obj-$(CONFIG_SPARC_GRPCI2)+= leon_pci_grpci2.o

13
arch/sparc/kernel/dma.c
View file

@ -1,13 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/dma-debug.h>
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 15)
static int __init dma_init(void)
{
dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
return 0;
}
fs_initcall(dma_init);