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tty: goldfish: use __raw_writel()/__raw_readl()

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gf_early_console_putchar() uses __raw_writel() but the standard driver
uses writel()/readl(). This means we can't use both on the same machine
as the device is either big-endian, little-endian or native-endian.

As android implementation defines the endianness of the device is the one
of the architecture replace all writel()/readl() by
__raw_writel()/__raw_readl()

https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev/hw/char/goldfish_tty.c#222

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Link: https://lore.kernel.org/r/20201010004749.1201695-1-laurent@vivier.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Laurent Vivier
2020-10-10 02:47:49 +02:00
committed by Greg Kroah-Hartman
parent 1a460c3607
commit da31de35cd
2 changed files with 13 additions and 13 deletions
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8
include/linux/goldfish.h
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@@ -13,9 +13,9 @@ static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
{
const unsigned long addr = (unsigned long)ptr;
writel(lower_32_bits(addr), portl);
__raw_writel(lower_32_bits(addr), portl);
#ifdef CONFIG_64BIT
writel(upper_32_bits(addr), porth);
__raw_writel(upper_32_bits(addr), porth);
#endif
}
@@ -23,9 +23,9 @@ static inline void gf_write_dma_addr(const dma_addr_t addr,
void __iomem *portl,
void __iomem *porth)
{
writel(lower_32_bits(addr), portl);
__raw_writel(lower_32_bits(addr), portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
writel(upper_32_bits(addr), porth);
__raw_writel(upper_32_bits(addr), porth);
#endif
}