change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/arch/parisc/include/asm/checksum.h
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@@ -19,21 +19,6 @@
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 extern __wsum csum_partial(const void *, int, __wsum);
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 /*
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- * The same as csum_partial, but copies from src while it checksums.
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- *
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- * Here even more important to align src and dst on a 32-bit (or even
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- * better 64-bit) boundary
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- */
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-extern __wsum csum_partial_copy_nocheck(const void *, void *, int, __wsum);
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-
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-/*
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- * this is a new version of the above that records errors it finds in *errp,
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- * but continues and zeros the rest of the buffer.
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- */
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-extern __wsum csum_partial_copy_from_user(const void __user *src,
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-		void *dst, int len, __wsum sum, int *errp);
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-
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-/*
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  *	Optimized for IP headers, which always checksum on 4 octet boundaries.
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  *
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  *	Written by Randolph Chung <tausq@debian.org>, and then mucked with by
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@@ -42,31 +27,32 @@
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 static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
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 {
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 	unsigned int sum;
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+	unsigned long t0, t1, t2;
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 	__asm__ __volatile__ (
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 "	ldws,ma		4(%1), %0\n"
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 "	addib,<=	-4, %2, 2f\n"
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 "\n"
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-"	ldws		4(%1), %%r20\n"
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-"	ldws		8(%1), %%r21\n"
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-"	add		%0, %%r20, %0\n"
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-"	ldws,ma		12(%1), %%r19\n"
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-"	addc		%0, %%r21, %0\n"
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-"	addc		%0, %%r19, %0\n"
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-"1:	ldws,ma		4(%1), %%r19\n"
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+"	ldws		4(%1), %4\n"
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+"	ldws		8(%1), %5\n"
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+"	add		%0, %4, %0\n"
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+"	ldws,ma		12(%1), %3\n"
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+"	addc		%0, %5, %0\n"
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+"	addc		%0, %3, %0\n"
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+"1:	ldws,ma		4(%1), %3\n"
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 "	addib,<		0, %2, 1b\n"
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-"	addc		%0, %%r19, %0\n"
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+"	addc		%0, %3, %0\n"
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 "\n"
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-"	extru		%0, 31, 16, %%r20\n"
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-"	extru		%0, 15, 16, %%r21\n"
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-"	addc		%%r20, %%r21, %0\n"
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-"	extru		%0, 15, 16, %%r21\n"
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-"	add		%0, %%r21, %0\n"
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+"	extru		%0, 31, 16, %4\n"
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+"	extru		%0, 15, 16, %5\n"
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+"	addc		%4, %5, %0\n"
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+"	extru		%0, 15, 16, %5\n"
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+"	add		%0, %5, %0\n"
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 "	subi		-1, %0, %0\n"
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 "2:\n"
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-	: "=r" (sum), "=r" (iph), "=r" (ihl)
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+	: "=r" (sum), "=r" (iph), "=r" (ihl), "=r" (t0), "=r" (t1), "=r" (t2)
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 	: "1" (iph), "2" (ihl)
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-	: "r19", "r20", "r21", "memory");
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+	: "memory");
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 	return (__force __sum16)sum;
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 }
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@@ -126,6 +112,10 @@
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 					  __u32 len, __u8 proto,
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 					  __wsum sum)
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 {
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+	unsigned long t0, t1, t2, t3;
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+
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+	len += proto;	/* add 16-bit proto + len */
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+
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 	__asm__ __volatile__ (
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 #if BITS_PER_LONG > 32
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@@ -136,20 +126,19 @@
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 	** Try to keep 4 registers with "live" values ahead of the ALU.
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 	*/
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-"	ldd,ma		8(%1), %%r19\n"	/* get 1st saddr word */
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-"	ldd,ma		8(%2), %%r20\n"	/* get 1st daddr word */
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-"	add		%8, %3, %3\n"/* add 16-bit proto + len */
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-"	add		%%r19, %0, %0\n"
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-"	ldd,ma		8(%1), %%r21\n"	/* 2cd saddr */
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-"	ldd,ma		8(%2), %%r22\n"	/* 2cd daddr */
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-"	add,dc		%%r20, %0, %0\n"
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-"	add,dc		%%r21, %0, %0\n"
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-"	add,dc		%%r22, %0, %0\n"
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+"	ldd,ma		8(%1), %4\n"	/* get 1st saddr word */
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+"	ldd,ma		8(%2), %5\n"	/* get 1st daddr word */
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+"	add		%4, %0, %0\n"
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+"	ldd,ma		8(%1), %6\n"	/* 2nd saddr */
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+"	ldd,ma		8(%2), %7\n"	/* 2nd daddr */
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+"	add,dc		%5, %0, %0\n"
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+"	add,dc		%6, %0, %0\n"
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+"	add,dc		%7, %0, %0\n"
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 "	add,dc		%3, %0, %0\n"  /* fold in proto+len | carry bit */
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-"	extrd,u		%0, 31, 32, %%r19\n"	/* copy upper half down */
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-"	depdi		0, 31, 32, %0\n"	/* clear upper half */
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-"	add		%%r19, %0, %0\n"	/* fold into 32-bits */
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-"	addc		0, %0, %0\n"		/* add carry */
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+"	extrd,u		%0, 31, 32, %4\n"/* copy upper half down */
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+"	depdi		0, 31, 32, %0\n"/* clear upper half */
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+"	add		%4, %0, %0\n"	/* fold into 32-bits */
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+"	addc		0, %0, %0\n"	/* add carry */
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 #else
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@@ -158,51 +147,30 @@
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 	** Insn stream is serialized on the carry bit here too.
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 	** result from the previous operation (eg r0 + x)
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 	*/
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-
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-"	ldw,ma		4(%1), %%r19\n"	/* get 1st saddr word */
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-"	ldw,ma		4(%2), %%r20\n"	/* get 1st daddr word */
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-"	add		%8, %3, %3\n"	/* add 16-bit proto + len */
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-"	add		%%r19, %0, %0\n"
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-"	ldw,ma		4(%1), %%r21\n"	/* 2cd saddr */
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-"	addc		%%r20, %0, %0\n"
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-"	ldw,ma		4(%2), %%r22\n"	/* 2cd daddr */
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-"	addc		%%r21, %0, %0\n"
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-"	ldw,ma		4(%1), %%r19\n"	/* 3rd saddr */
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-"	addc		%%r22, %0, %0\n"
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-"	ldw,ma		4(%2), %%r20\n"	/* 3rd daddr */
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-"	addc		%%r19, %0, %0\n"
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-"	ldw,ma		4(%1), %%r21\n"	/* 4th saddr */
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-"	addc		%%r20, %0, %0\n"
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-"	ldw,ma		4(%2), %%r22\n"	/* 4th daddr */
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-"	addc		%%r21, %0, %0\n"
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-"	addc		%%r22, %0, %0\n"
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+"	ldw,ma		4(%1), %4\n"	/* get 1st saddr word */
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+"	ldw,ma		4(%2), %5\n"	/* get 1st daddr word */
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+"	add		%4, %0, %0\n"
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+"	ldw,ma		4(%1), %6\n"	/* 2nd saddr */
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+"	addc		%5, %0, %0\n"
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+"	ldw,ma		4(%2), %7\n"	/* 2nd daddr */
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+"	addc		%6, %0, %0\n"
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+"	ldw,ma		4(%1), %4\n"	/* 3rd saddr */
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+"	addc		%7, %0, %0\n"
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+"	ldw,ma		4(%2), %5\n"	/* 3rd daddr */
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+"	addc		%4, %0, %0\n"
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+"	ldw,ma		4(%1), %6\n"	/* 4th saddr */
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+"	addc		%5, %0, %0\n"
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+"	ldw,ma		4(%2), %7\n"	/* 4th daddr */
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+"	addc		%6, %0, %0\n"
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+"	addc		%7, %0, %0\n"
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 "	addc		%3, %0, %0\n"	/* fold in proto+len, catch carry */
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 #endif
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-	: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
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-	: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
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-	: "r19", "r20", "r21", "r22", "memory");
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+	: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len),
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+	  "=r" (t0), "=r" (t1), "=r" (t2), "=r" (t3)
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+	: "0" (sum), "1" (saddr), "2" (daddr), "3" (len)
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+	: "memory");
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 	return csum_fold(sum);
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-}
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-
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-/* 
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- *	Copy and checksum to user
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- */
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-#define HAVE_CSUM_COPY_USER
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-static __inline__ __wsum csum_and_copy_to_user(const void *src,
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-						      void __user *dst,
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-						      int len, __wsum sum,
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-						      int *err_ptr)
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-{
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-	/* code stolen from include/asm-mips64 */
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-	sum = csum_partial(src, len, sum);
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-	 
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-	if (copy_to_user(dst, src, len)) {
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-		*err_ptr = -EFAULT;
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-		return (__force __wsum)-1;
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-	}
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-
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-	return sum;
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 }
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 #endif