Commit ad32e8cb authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Ingo Molnar
Browse files

swiotlb: Defer swiotlb init printing, export swiotlb_print_info() 



This enables us to avoid printing swiotlb memory info when we
initialize swiotlb. After swiotlb initialization, we could find
that we don't need swiotlb.

This patch removes the code to print swiotlb memory info in
swiotlb_init() and exports the function to do that.

Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: chrisw@sous-sol.org
Cc: dwmw2@infradead.org
Cc: joerg.roedel@amd.com
Cc: muli@il.ibm.com
Cc: tony.luck@intel.com
Cc: benh@kernel.crashing.org
LKML-Reference: <1257849980-22640-9-git-send-email-fujita.tomonori@lab.ntt.co.jp>
[ -v2: merge up conflict ]
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 5740afdb

arch/ia64/kernel/pci-swiotlb.c

+2 −2
Original line number Diff line number Diff line
@@ -41,7 +41,7 @@ struct dma_map_ops swiotlb_dma_ops = { 
void __init swiotlb_dma_init(void)

{

	dma_ops = &swiotlb_dma_ops;

	swiotlb_init();

	swiotlb_init(1);

}



void __init pci_swiotlb_init(void)
@@ -51,7 +51,7 @@ void __init pci_swiotlb_init(void) 
		swiotlb = 1;

		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");

		machvec_init("dig");

		swiotlb_init();

		swiotlb_init(1);

		dma_ops = &swiotlb_dma_ops;

#else

		panic("Unable to find Intel IOMMU");

arch/powerpc/kernel/setup_32.c

+1 −1
Original line number Diff line number Diff line
@@ -345,7 +345,7 @@ void __init setup_arch(char **cmdline_p) 


#ifdef CONFIG_SWIOTLB

	if (ppc_swiotlb_enable)

		swiotlb_init();

		swiotlb_init(1);

#endif



	paging_init();

arch/powerpc/kernel/setup_64.c

+1 −1
Original line number Diff line number Diff line
@@ -550,7 +550,7 @@ void __init setup_arch(char **cmdline_p) 


#ifdef CONFIG_SWIOTLB

	if (ppc_swiotlb_enable)

		swiotlb_init();

		swiotlb_init(1);

#endif



	paging_init();

arch/x86/kernel/pci-swiotlb.c

+1 −2
Original line number Diff line number Diff line
@@ -52,8 +52,7 @@ void __init pci_swiotlb_init(void) 
	if (swiotlb_force)

		swiotlb = 1;

	if (swiotlb) {

		printk(KERN_INFO "PCI-DMA: Using software bounce buffering for IO (SWIOTLB)\n");

		swiotlb_init();

		swiotlb_init(0);

		dma_ops = &swiotlb_dma_ops;

	}

}

include/linux/swiotlb.h

+2 −2
Original line number Diff line number Diff line
@@ -20,8 +20,7 @@ struct scatterlist; 
 */

#define IO_TLB_SHIFT 11



extern void

swiotlb_init(void);

extern void swiotlb_init(int verbose);



extern void

*swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -94,4 +93,5 @@ extern void __init swiotlb_free(void); 
static inline void swiotlb_free(void) { }

#endif



extern void swiotlb_print_info(void);

#endif /* __LINUX_SWIOTLB_H */

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