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-rw-r--r--arch/m32r/lib/delay.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/arch/m32r/lib/delay.c b/arch/m32r/lib/delay.c
deleted file mode 100644
index ae1fe90892f9..000000000000
--- a/arch/m32r/lib/delay.c
+++ /dev/null
@@ -1,130 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/m32r/lib/delay.c
- *
- * Copyright (c) 2002 Hitoshi Yamamoto, Hirokazu Takata
- * Copyright (c) 2004 Hirokazu Takata
- */
-
-#include <linux/param.h>
-#include <linux/module.h>
-#ifdef CONFIG_SMP
-#include <linux/sched.h>
-#include <asm/current.h>
-#include <asm/smp.h>
-#endif /* CONFIG_SMP */
-#include <asm/processor.h>
-
-void __delay(unsigned long loops)
-{
-#ifdef CONFIG_ISA_DUAL_ISSUE
- __asm__ __volatile__ (
- "beqz %0, 2f \n\t"
- "addi %0, #-1 \n\t"
-
- " .fillinsn \n\t"
- "1: \n\t"
- "cmpz %0 || addi %0, #-1 \n\t"
- "bc 2f || cmpz %0 \n\t"
- "bc 2f || addi %0, #-1 \n\t"
- "cmpz %0 || addi %0, #-1 \n\t"
- "bc 2f || cmpz %0 \n\t"
- "bnc 1b || addi %0, #-1 \n\t"
- " .fillinsn \n\t"
- "2: \n\t"
- : "+r" (loops)
- : "r" (0)
- : "cbit"
- );
-#else
- __asm__ __volatile__ (
- "beqz %0, 2f \n\t"
- " .fillinsn \n\t"
- "1: \n\t"
- "addi %0, #-1 \n\t"
- "blez %0, 2f \n\t"
- "addi %0, #-1 \n\t"
- "blez %0, 2f \n\t"
- "addi %0, #-1 \n\t"
- "blez %0, 2f \n\t"
- "addi %0, #-1 \n\t"
- "bgtz %0, 1b \n\t"
- " .fillinsn \n\t"
- "2: \n\t"
- : "+r" (loops)
- : "r" (0)
- );
-#endif
-}
-
-void __const_udelay(unsigned long xloops)
-{
-#if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2)
- /*
- * loops [1] = (xloops >> 32) [sec] * loops_per_jiffy [1/jiffy]
- * * HZ [jiffy/sec]
- * = (xloops >> 32) [sec] * (loops_per_jiffy * HZ) [1/sec]
- * = (((xloops * loops_per_jiffy) >> 32) * HZ) [1]
- *
- * NOTE:
- * - '[]' depicts variable's dimension in the above equation.
- * - "rac" instruction rounds the accumulator in word size.
- */
- __asm__ __volatile__ (
- "srli %0, #1 \n\t"
- "mulwhi %0, %1 ; a0 \n\t"
- "mulwu1 %0, %1 ; a1 \n\t"
- "sadd ; a0 += (a1 >> 16) \n\t"
- "rac a0, a0, #1 \n\t"
- "mvfacmi %0, a0 \n\t"
- : "+r" (xloops)
- : "r" (current_cpu_data.loops_per_jiffy)
- : "a0", "a1"
- );
-#elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R)
- /*
- * u64 ull;
- * ull = (u64)xloops * (u64)current_cpu_data.loops_per_jiffy;
- * xloops = (ull >> 32);
- */
- __asm__ __volatile__ (
- "and3 r4, %0, #0xffff \n\t"
- "and3 r5, %1, #0xffff \n\t"
- "mul r4, r5 \n\t"
- "srl3 r6, %0, #16 \n\t"
- "srli r4, #16 \n\t"
- "mul r5, r6 \n\t"
- "add r4, r5 \n\t"
- "and3 r5, %0, #0xffff \n\t"
- "srl3 r6, %1, #16 \n\t"
- "mul r5, r6 \n\t"
- "add r4, r5 \n\t"
- "srl3 r5, %0, #16 \n\t"
- "srli r4, #16 \n\t"
- "mul r5, r6 \n\t"
- "add r4, r5 \n\t"
- "mv %0, r4 \n\t"
- : "+r" (xloops)
- : "r" (current_cpu_data.loops_per_jiffy)
- : "r4", "r5", "r6"
- );
-#else
-#error unknown isa configuration
-#endif
- __delay(xloops * HZ);
-}
-
-void __udelay(unsigned long usecs)
-{
- __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
-}
-
-void __ndelay(unsigned long nsecs)
-{
- __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
-}
-
-EXPORT_SYMBOL(__delay);
-EXPORT_SYMBOL(__const_udelay);
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(__ndelay);