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soc: fsl: qe: add cpm_muram_free_addr() helper

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Add a helper that takes a virtual address rather than the muram
offset. This will be used in a couple of places to avoid having to
store both the offset and the virtual address, as well as removing
NULL checks from the callers.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Rasmus Villemoes 2021-01-19 16:07:49 +01:00 committed by Jakub Kicinski
parent 155ea0dc8d
commit 186b8daffb
2 changed files with 17 additions and 0 deletions
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12
drivers/soc/fsl/qe/qe_common.c
View File

@ -238,3 +238,15 @@ dma_addr_t cpm_muram_dma(void __iomem *addr)
return muram_pbase + (addr - muram_vbase);
}
EXPORT_SYMBOL(cpm_muram_dma);
/*
* As cpm_muram_free, but takes the virtual address rather than the
* muram offset.
*/
void cpm_muram_free_addr(const void __iomem *addr)
{
if (!addr)
return;
cpm_muram_free(cpm_muram_offset(addr));
}
EXPORT_SYMBOL(cpm_muram_free_addr);

5
include/soc/fsl/qe/qe.h
View File

@ -104,6 +104,7 @@ s32 cpm_muram_alloc_fixed(unsigned long offset, unsigned long size);
void __iomem *cpm_muram_addr(unsigned long offset);
unsigned long cpm_muram_offset(const void __iomem *addr);
dma_addr_t cpm_muram_dma(void __iomem *addr);
void cpm_muram_free_addr(const void __iomem *addr);
#else
static inline s32 cpm_muram_alloc(unsigned long size,
unsigned long align)
@ -135,6 +136,9 @@ static inline dma_addr_t cpm_muram_dma(void __iomem *addr)
{
return 0;
}
static inline void cpm_muram_free_addr(const void __iomem *addr)
{
}
#endif /* defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE) */
/* QE PIO */
@ -239,6 +243,7 @@ static inline int qe_alive_during_sleep(void)
#define qe_muram_addr cpm_muram_addr
#define qe_muram_offset cpm_muram_offset
#define qe_muram_dma cpm_muram_dma
#define qe_muram_free_addr cpm_muram_free_addr
#ifdef CONFIG_PPC32
#define qe_iowrite8(val, addr) out_8(addr, val)