add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/alpha/kernel/io.c
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@@ -14,7 +14,7 @@
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    "generic", which bumps through the machine vector.  */
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 unsigned int
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-ioread8(void __iomem *addr)
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+ioread8(const void __iomem *addr)
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 {
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 	unsigned int ret;
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 	mb();
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@@ -23,7 +23,7 @@
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 	return ret;
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 }
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-unsigned int ioread16(void __iomem *addr)
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+unsigned int ioread16(const void __iomem *addr)
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 {
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 	unsigned int ret;
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 	mb();
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@@ -32,7 +32,7 @@
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 	return ret;
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 }
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-unsigned int ioread32(void __iomem *addr)
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+unsigned int ioread32(const void __iomem *addr)
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 {
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 	unsigned int ret;
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 	mb();
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@@ -257,7 +257,7 @@
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 /*
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  * Read COUNT 8-bit bytes from port PORT into memory starting at SRC.
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  */
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-void ioread8_rep(void __iomem *port, void *dst, unsigned long count)
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+void ioread8_rep(const void __iomem *port, void *dst, unsigned long count)
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 {
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 	while ((unsigned long)dst & 0x3) {
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 		if (!count)
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@@ -300,7 +300,7 @@
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  * the interfaces seems to be slow: just using the inlined version
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  * of the inw() breaks things.
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  */
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-void ioread16_rep(void __iomem *port, void *dst, unsigned long count)
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+void ioread16_rep(const void __iomem *port, void *dst, unsigned long count)
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 {
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 	if (unlikely((unsigned long)dst & 0x3)) {
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 		if (!count)
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@@ -340,7 +340,7 @@
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  * but the interfaces seems to be slow: just using the inlined version
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  * of the inl() breaks things.
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  */
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-void ioread32_rep(void __iomem *port, void *dst, unsigned long count)
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+void ioread32_rep(const void __iomem *port, void *dst, unsigned long count)
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 {
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 	if (unlikely((unsigned long)dst & 0x3)) {
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 		while (count--) {