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[POWERPC] QE: implement qe_muram_offset

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qe_muram_offset is the reverse of the qe_muram_addr, will be
used for the Freescale QE USB Host Controller driver.

This patch also moves qe_muram_addr into the qe.h header, plus
adds __iomem hints to use with sparse.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Anton Vorontsov 2008-03-11 20:24:13 +03:00 committed by Kumar Gala
parent acaa7aa30a
commit 0b51b02edf
3 changed files with 12 additions and 9 deletions
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8
arch/powerpc/sysdev/qe_lib/qe.c
View file

@ -55,7 +55,7 @@ struct qe_snum {
/* We allocate this here because it is used almost exclusively for
* the communication processor devices.
*/
struct qe_immap *qe_immr = NULL;
struct qe_immap __iomem *qe_immr;
EXPORT_SYMBOL(qe_immr);
static struct qe_snum snums[QE_NUM_OF_SNUM]; /* Dynamically allocated SNUMs */
@ -415,12 +415,6 @@ void qe_muram_dump(void)
}
EXPORT_SYMBOL(qe_muram_dump);
void *qe_muram_addr(unsigned long offset)
{
return (void *)&qe_immr->muram[offset];
}
EXPORT_SYMBOL(qe_muram_addr);
/* The maximum number of RISCs we support */
#define MAX_QE_RISC 2

2
include/asm-powerpc/immap_qe.h
View file

@ -468,7 +468,7 @@ struct qe_immap {
u8 res18[0xC0000]; /* 0x140000 - 0x200000 */
} __attribute__ ((packed));
extern struct qe_immap *qe_immr;
extern struct qe_immap __iomem *qe_immr;
extern phys_addr_t get_qe_base(void);
static inline unsigned long immrbar_virt_to_phys(void *address)

11
include/asm-powerpc/qe.h
View file

@ -92,7 +92,16 @@ unsigned long qe_muram_alloc(int size, int align);
int qe_muram_free(unsigned long offset);
unsigned long qe_muram_alloc_fixed(unsigned long offset, int size);
void qe_muram_dump(void);
void *qe_muram_addr(unsigned long offset);
static inline void __iomem *qe_muram_addr(unsigned long offset)
{
return (void __iomem *)&qe_immr->muram[offset];
}
static inline unsigned long qe_muram_offset(void __iomem *addr)
{
return addr - (void __iomem *)qe_immr->muram;
}
/* Structure that defines QE firmware binary files.
*