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Commit c8d35c84 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h 



Looks like the iommu framework does not have generic functions
exported for all the needs yet. The hardware specific functions
are defined in files like intel-iommu.h and amd-iommu.h. Follow
the same standard for omap-iommu.h.

This is needed because we are removing plat and mach includes
for ARM common zImage support. Further work should continue
in the iommu framework context as only pure platform data will
be communicated from arch/arm/*omap*/* code to the iommu
framework.

Cc: Ido Yariv <ido@wizery.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Cc: linux-media@vger.kernel.org
Acked-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: default avatarOhad Ben-Cohen <ohad@wizery.com>
Acked-by: default avatarJoerg Roedel <joro@8bytes.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 2f7702af

arch/arm/mach-omap2/iommu2.c

+1 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
#include <linux/device.h>

#include <linux/jiffies.h>

#include <linux/module.h>

#include <linux/omap-iommu.h>

#include <linux/slab.h>

#include <linux/stringify.h>

arch/arm/plat-omap/include/plat/iommu.h

+2 −8
Original line number Diff line number Diff line
@@ -216,13 +216,10 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev) 
#define MMU_RAM_PADDR_SHIFT	12

#define MMU_RAM_PADDR_MASK \

	((~0UL >> MMU_RAM_PADDR_SHIFT) << MMU_RAM_PADDR_SHIFT)

#define MMU_RAM_ENDIAN_SHIFT	9



#define MMU_RAM_ENDIAN_MASK	(1 << MMU_RAM_ENDIAN_SHIFT)

#define MMU_RAM_ENDIAN_BIG	(1 << MMU_RAM_ENDIAN_SHIFT)

#define MMU_RAM_ENDIAN_LITTLE	(0 << MMU_RAM_ENDIAN_SHIFT)

#define MMU_RAM_ELSZ_SHIFT	7

#define MMU_RAM_ELSZ_MASK	(3 << MMU_RAM_ELSZ_SHIFT)

#define MMU_RAM_ELSZ_8		(0 << MMU_RAM_ELSZ_SHIFT)



#define MMU_RAM_ELSZ_16		(1 << MMU_RAM_ELSZ_SHIFT)

#define MMU_RAM_ELSZ_32		(2 << MMU_RAM_ELSZ_SHIFT)

#define MMU_RAM_ELSZ_NONE	(3 << MMU_RAM_ELSZ_SHIFT)
@@ -269,9 +266,6 @@ extern int omap_iommu_set_isr(const char *name, 
				    void *priv),

			 void *isr_priv);



extern void omap_iommu_save_ctx(struct device *dev);

extern void omap_iommu_restore_ctx(struct device *dev);



extern int omap_install_iommu_arch(const struct iommu_functions *ops);

extern void omap_uninstall_iommu_arch(const struct iommu_functions *ops);

drivers/iommu/omap-iommu-debug.c

+1 −1
Original line number Diff line number Diff line
@@ -18,9 +18,9 @@ 
#include <linux/uaccess.h>

#include <linux/platform_device.h>

#include <linux/debugfs.h>

#include <linux/omap-iommu.h>



#include <plat/iommu.h>

#include <plat/iovmm.h>



#include "omap-iopgtable.h"

drivers/iommu/omap-iommu.c

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <linux/clk.h>

#include <linux/platform_device.h>

#include <linux/iommu.h>

#include <linux/omap-iommu.h>

#include <linux/mutex.h>

#include <linux/spinlock.h>

drivers/iommu/omap-iovmm.c

+45 −1
Original line number Diff line number Diff line
@@ -17,15 +17,59 @@ 
#include <linux/device.h>

#include <linux/scatterlist.h>

#include <linux/iommu.h>

#include <linux/omap-iommu.h>



#include <asm/cacheflush.h>

#include <asm/mach/map.h>



#include <plat/iommu.h>

#include <plat/iovmm.h>



#include "omap-iopgtable.h"



/*

 * IOVMF_FLAGS: attribute for iommu virtual memory area(iovma)

 *

 * lower 16 bit is used for h/w and upper 16 bit is for s/w.

 */

#define IOVMF_SW_SHIFT		16



/*

 * iovma: h/w flags derived from cam and ram attribute

 */

#define IOVMF_CAM_MASK		(~((1 << 10) - 1))

#define IOVMF_RAM_MASK		(~IOVMF_CAM_MASK)



#define IOVMF_PGSZ_MASK		(3 << 0)

#define IOVMF_PGSZ_1M		MMU_CAM_PGSZ_1M

#define IOVMF_PGSZ_64K		MMU_CAM_PGSZ_64K

#define IOVMF_PGSZ_4K		MMU_CAM_PGSZ_4K

#define IOVMF_PGSZ_16M		MMU_CAM_PGSZ_16M



#define IOVMF_ENDIAN_MASK	(1 << 9)

#define IOVMF_ENDIAN_BIG	MMU_RAM_ENDIAN_BIG



#define IOVMF_ELSZ_MASK		(3 << 7)

#define IOVMF_ELSZ_16		MMU_RAM_ELSZ_16

#define IOVMF_ELSZ_32		MMU_RAM_ELSZ_32

#define IOVMF_ELSZ_NONE		MMU_RAM_ELSZ_NONE



#define IOVMF_MIXED_MASK	(1 << 6)

#define IOVMF_MIXED		MMU_RAM_MIXED



/*

 * iovma: s/w flags, used for mapping and umapping internally.

 */

#define IOVMF_MMIO		(1 << IOVMF_SW_SHIFT)

#define IOVMF_ALLOC		(2 << IOVMF_SW_SHIFT)

#define IOVMF_ALLOC_MASK	(3 << IOVMF_SW_SHIFT)



/* "superpages" is supported just with physically linear pages */

#define IOVMF_DISCONT		(1 << (2 + IOVMF_SW_SHIFT))

#define IOVMF_LINEAR		(2 << (2 + IOVMF_SW_SHIFT))

#define IOVMF_LINEAR_MASK	(3 << (2 + IOVMF_SW_SHIFT))



#define IOVMF_DA_FIXED		(1 << (4 + IOVMF_SW_SHIFT))



static struct kmem_cache *iovm_area_cachep;



/* return the offset of the first scatterlist entry in a sg table */