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linux-sg2042/include/linux/goldfish.h

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goldfish: Add a 64bit write helper The base code imported from the Google tree is ifdef heaven. Prepare to fix this by adding a helper function. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-29 03:47:36 +08:00
#ifndef __LINUX_GOLDFISH_H
#define __LINUX_GOLDFISH_H
/* Helpers for Goldfish virtual platform */
staging: goldfish: Fix pointer cast for 32 bits As the first argument of gf_write64() was of type unsigned long, and as some calls to gf_write64() were casting the first argument from void * to u64 the compiler and/or sparse were printing warnings for casts of wrong sizes when compiling for i386. This patch changes the type of the first argument of gf_write64() to const void *, and update calls to the function. This change fixed the warnings and allowed to remove casts from 3 calls to gf_write64(). In addition gf_write64() was renamed to gf_write_ptr() as the name was misleading because it only writes 32 bits on 32 bit systems. gf_write_dma_addr() was added to handle dma_addr_t values which is used at drivers/staging/goldfish/goldfish_audio.c. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-19 17:44:46 +08:00
static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
void __iomem *porth)
goldfish: Add a 64bit write helper The base code imported from the Google tree is ifdef heaven. Prepare to fix this by adding a helper function. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-29 03:47:36 +08:00
{
staging: goldfish: Fix pointer cast for 32 bits As the first argument of gf_write64() was of type unsigned long, and as some calls to gf_write64() were casting the first argument from void * to u64 the compiler and/or sparse were printing warnings for casts of wrong sizes when compiling for i386. This patch changes the type of the first argument of gf_write64() to const void *, and update calls to the function. This change fixed the warnings and allowed to remove casts from 3 calls to gf_write64(). In addition gf_write64() was renamed to gf_write_ptr() as the name was misleading because it only writes 32 bits on 32 bit systems. gf_write_dma_addr() was added to handle dma_addr_t values which is used at drivers/staging/goldfish/goldfish_audio.c. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-19 17:44:46 +08:00
writel((u32)(unsigned long)ptr, portl);
goldfish: fix >> 32 warning We should be checking for a 64bit platform not 64bit DMA address types in the case of Goldfish. The Goldfish virtual platform is either 32/32 or 64/64. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-19 21:34:09 +08:00
#ifdef CONFIG_64BIT
staging: goldfish: Fix pointer cast for 32 bits As the first argument of gf_write64() was of type unsigned long, and as some calls to gf_write64() were casting the first argument from void * to u64 the compiler and/or sparse were printing warnings for casts of wrong sizes when compiling for i386. This patch changes the type of the first argument of gf_write64() to const void *, and update calls to the function. This change fixed the warnings and allowed to remove casts from 3 calls to gf_write64(). In addition gf_write64() was renamed to gf_write_ptr() as the name was misleading because it only writes 32 bits on 32 bit systems. gf_write_dma_addr() was added to handle dma_addr_t values which is used at drivers/staging/goldfish/goldfish_audio.c. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-19 17:44:46 +08:00
writel((unsigned long)ptr >> 32, porth);
goldfish: Add a 64bit write helper The base code imported from the Google tree is ifdef heaven. Prepare to fix this by adding a helper function. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-29 03:47:36 +08:00
#endif
}
staging: goldfish: Fix pointer cast for 32 bits As the first argument of gf_write64() was of type unsigned long, and as some calls to gf_write64() were casting the first argument from void * to u64 the compiler and/or sparse were printing warnings for casts of wrong sizes when compiling for i386. This patch changes the type of the first argument of gf_write64() to const void *, and update calls to the function. This change fixed the warnings and allowed to remove casts from 3 calls to gf_write64(). In addition gf_write64() was renamed to gf_write_ptr() as the name was misleading because it only writes 32 bits on 32 bit systems. gf_write_dma_addr() was added to handle dma_addr_t values which is used at drivers/staging/goldfish/goldfish_audio.c. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-19 17:44:46 +08:00
static inline void gf_write_dma_addr(const dma_addr_t addr,
void __iomem *portl,
void __iomem *porth)
{
writel((u32)addr, portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
writel(addr >> 32, porth);
#endif
}
goldfish: Add a 64bit write helper The base code imported from the Google tree is ifdef heaven. Prepare to fix this by adding a helper function. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-29 03:47:36 +08:00
#endif /* __LINUX_GOLDFISH_H */