ack/plat/rpi/libsys/pi_user_to_phys.s

#
/*
 * Raspberry Pi support library for the ACK
 * © 2013 David Given
 * This file is redistributable under the terms of the 3-clause BSD license.
 * See the file 'Copying' in the root of the distribution for the full text.
 */

#include "libsysasm.h"

.sect .text

! Transforms a user address into a physical address.

.define _pi_user_to_phys
_pi_user_to_phys:
	ld r0, 0 (sp)
	add r0, gp
	b lr
Build binaries that will run bare metal. Add enough syscall library to init the uart and write text. --HG-- branch : dtrg-videocore rename : plat/rpi/libsys/libsys.h => plat/rpi/libsys/libsysasm.h rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/phys_to_user.s rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/uart.s rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/user_to_phys.s 2013-05-24 23:35:29 +00:00			`#`
			`/*`
			`* Raspberry Pi support library for the ACK`
			`* © 2013 David Given`
			`* This file is redistributable under the terms of the 3-clause BSD license.`
			`* See the file 'Copying' in the root of the distribution for the full text.`
			`*/`

			`#include "libsysasm.h"`

			`.sect .text`

			`! Transforms a user address into a physical address.`

Renamed the pi-specific functions to be a bit cleaner. --HG-- branch : dtrg-videocore rename : plat/rpi/libsys/phys_to_user.s => plat/rpi/libsys/pi_phys_to_user.s rename : plat/rpi/libsys/uart.s => plat/rpi/libsys/pi_uart.s rename : plat/rpi/libsys/user_to_phys.s => plat/rpi/libsys/pi_user_to_phys.s 2013-05-25 23:22:39 +00:00			`.define _pi_user_to_phys`
			`_pi_user_to_phys:`
Build binaries that will run bare metal. Add enough syscall library to init the uart and write text. --HG-- branch : dtrg-videocore rename : plat/rpi/libsys/libsys.h => plat/rpi/libsys/libsysasm.h rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/phys_to_user.s rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/uart.s rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/user_to_phys.s 2013-05-24 23:35:29 +00:00			`ld r0, 0 (sp)`
			`add r0, gp`
			`b lr`