From d95c39072ace1a7aeaad3ee49ed668399b4862bd Mon Sep 17 00:00:00 2001 From: Michael Sevakis Date: Fri, 13 Apr 2007 20:55:48 +0000 Subject: Portal Player: Add invalidate_icache and flush_icache. Flush the cache on the core for newborn threads. In doing so, move more ARM stuff to the target tree and organize it to make a clean job of it. If anything isn't appropriate for some particular device give a hollar or even just fix it by some added #ifdefing. I was informed that the PP targets are register compatible so I'm going off that advice. The Sansa likes it though. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13144 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/system-pp.h | 49 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 firmware/target/arm/system-pp.h (limited to 'firmware/target/arm/system-pp.h') diff --git a/firmware/target/arm/system-pp.h b/firmware/target/arm/system-pp.h new file mode 100644 index 0000000000..05fd8b6edf --- /dev/null +++ b/firmware/target/arm/system-pp.h @@ -0,0 +1,49 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2002 by Alan Korr + * Copyright (C) 2007 by Michael Sevakis + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#define inl(a) (*(volatile unsigned long *) (a)) +#define outl(a,b) (*(volatile unsigned long *) (b) = (a)) +#define inb(a) (*(volatile unsigned char *) (a)) +#define outb(a,b) (*(volatile unsigned char *) (b) = (a)) +#define inw(a) (*(volatile unsigned short *) (a)) +#define outw(a,b) (*(volatile unsigned short *) (b) = (a)) +extern unsigned int ipod_hw_rev; + +static inline void udelay(unsigned usecs) +{ + unsigned stop = USEC_TIMER + usecs; + while (TIME_BEFORE(USEC_TIMER, stop)); +} + +unsigned int current_core(void); + +#define HAVE_INVALIDATE_ICACHE +static inline void invalidate_icache(void) +{ + outl(inl(0xf000f044) | 0x6, 0xf000f044); + while ((CACHE_CTL & 0x8000) != 0); +} + +#define HAVE_FLUSH_ICACHE +static inline void flush_icache(void) +{ + outl(inl(0xf000f044) | 0x2, 0xf000f044); + while ((CACHE_CTL & 0x8000) != 0); +} -- cgit v1.2.3