Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <asm/sfp-machine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <math-emu/soft-fp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <math-emu/double.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) fcmpu(u32 *ccr, int crfD, void *frA, void *frB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	FP_DECL_D(A);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	FP_DECL_D(B);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	FP_DECL_EX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	long cmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #ifdef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	FP_UNPACK_DP(A, frA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	FP_UNPACK_DP(B, frB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #ifdef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	FP_CMP_D(cmp, A, B, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	cmp = code[(cmp + 1) & 3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	__FPU_FPSCR &= ~(0x1f000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	__FPU_FPSCR |= (cmp << 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	*ccr &= ~(15 << ((7 - crfD) << 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	*ccr |= (cmp << ((7 - crfD) << 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #ifdef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	printk("CR: %08x\n", *ccr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }