cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pl01x.S (769B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/* arch/arm/include/debug/pl01x.S
      3 *
      4 * Debugging macro include header
      5 *
      6 *  Copyright (C) 1994-1999 Russell King
      7 *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
      8*/
      9#include <linux/amba/serial.h>
     10
     11#ifdef CONFIG_DEBUG_UART_PHYS
     12		.macro	addruart, rp, rv, tmp
     13		ldr	\rp, =CONFIG_DEBUG_UART_PHYS
     14		ldr	\rv, =CONFIG_DEBUG_UART_VIRT
     15		.endm
     16#endif
     17
     18		.macro	senduart,rd,rx
     19		strb	\rd, [\rx, #UART01x_DR]
     20		.endm
     21
     22		.macro	waituartcts,rd,rx
     23		.endm
     24
     25		.macro	waituarttxrdy,rd,rx
     261001:		ldr	\rd, [\rx, #UART01x_FR]
     27 ARM_BE8(	rev	\rd, \rd )
     28		tst	\rd, #UART01x_FR_TXFF
     29		bne	1001b
     30		.endm
     31
     32		.macro	busyuart,rd,rx
     331001:		ldr	\rd, [\rx, #UART01x_FR]
     34 ARM_BE8(	rev	\rd, \rd )
     35		tst	\rd, #UART01x_FR_BUSY
     36		bne	1001b
     37		.endm