Eric Anholt e517a5e970 agp/intel: Fix the pre-9xx chipset flush. ... Ever since we enabled GEM, the pre-9xx chipsets (particularly 865) have had serious stability issues. Back in May a wbinvd was added to the DRM to work around much of the problem. Some failure remained -- easily visible by dragging a window around on an X -retro desktop, or by looking at bugzilla. The chipset flush was on the right track -- hitting the right amount of memory, and it appears to be the only way to flush on these chipsets, but the flush page was mapped uncached. As a result, the writes trying to clear the writeback cache ended up bypassing the cache, and not flushing anything! The wbinvd would flush out other writeback data and often cause the data we wanted to get flushed, but not always. By removing the setting of the page to UC and instead just clflushing the data we write to try to flush it, we get the desired behavior with no wbinvd. This exports clflush_cache_range(), which was laying around and happened to basically match the code I was otherwise going to copy from the DRM. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org> Cc: stable@kernel.org		2009-09-11 11:39:23 -07:00
..
agp	agp/intel: Fix the pre-9xx chipset flush.	2009-09-11 11:39:23 -07:00
hw_random	Remove multiple KERN_ prefixes from printk formats	2009-07-08 10:30:03 -07:00
ip2	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
ipmi	ipmi: remove driver_data direct access of struct device	2009-06-15 21:30:27 -07:00
mwave	mwave: struct device - replace bus_id with dev_name(), dev_set_name()	2009-01-06 10:44:38 -08:00
pcmcia	tty: fix chars_in_buffers	2009-07-20 16:38:43 -07:00
rio	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
tpm	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
xilinx_hwicap	xilinx_hwicap: remove improper wording in license statement	2008-12-17 11:23:07 -08:00
.gitignore
amiserial.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
apm-emulation.c
applicom.c	applicom: Auto-load applicom module when device opened.	2009-04-06 14:36:30 -07:00
applicom.h
bfin_jtag_comm.c	bfin_jtag_comm: clean up printk usage	2009-06-22 11:32:23 -07:00
bfin-otp.c
briq_panel.c
bsr.c	powerpc/BSR: Fix BSR to allow mmap of small BSR on 64k kernel	2009-06-26 14:37:26 +10:00
cd1865.h
ChangeLog
consolemap.c	consolemap: indentation & braces disagree - reindent	2009-01-06 15:59:30 -08:00
cp437.uni	unicode table for cp437	2008-12-13 11:25:49 -08:00
cs5535_gpio.c
cyclades.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c	rtc: use bcd2bin/bin2bcd	2008-10-20 08:52:41 -07:00
ds1620.c	[ARM] netwinder: clean up GPIO naming	2008-12-13 09:12:07 +00:00
dsp56k.c	device create: char: convert device_create_drvdata to device_create	2008-10-16 09:24:42 -07:00
dtlk.c	dtlk: off by one in {read,write}_tts()	2009-06-19 16:46:06 -07:00
efirtc.c	drivers/char/efirtc.c: removed duplicated #include	2008-08-04 16:59:56 -07:00
epca.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
epca.h
epcaconfig.h
esp.c	esp: fix section mismatch warning	2009-04-07 08:31:03 -07:00
generic_nvram.c
generic_serial.c	tty: Remove some pointless casts	2009-01-02 10:19:40 -08:00
genrtc.c
hangcheck-timer.c
hpet.c	irq: change ACPI GSI APIs to also take a device argument	2009-04-28 12:21:17 +02:00
hvc_beat.c	powerpc/cell: Use correct types in beat files	2009-01-08 16:25:16 +11:00
hvc_console.c	tty: fix chars_in_buffers	2009-07-20 16:38:43 -07:00
hvc_console.h	powerpc: Make open count variables signed in hvcs/hvsi/hvc_console	2008-12-03 21:04:13 +11:00
hvc_irq.c	hvc_console: Call free_irq() only if request_irq() was successful	2009-01-13 14:48:01 +11:00
hvc_iseries.c	drivers/hvc: Add missing __devexit_p()	2009-06-16 14:15:44 +10:00
hvc_iucv.c	[S390] pm: hvc_iucv power management callbacks	2009-06-16 10:31:19 +02:00
hvc_rtas.c
hvc_udbg.c	powerpc: udbg-based backend for hvc_console	2008-11-19 16:04:25 +11:00
hvc_vio.c	drivers/hvc: Add missing __devexit_p()	2009-06-16 14:15:44 +10:00
hvc_xen.c	hvc_console: Add a hangup notifier for backends	2008-10-22 10:59:54 +11:00
hvcs.c	Merge commit 'origin/master' into next	2009-06-18 11:16:55 +10:00
hvsi.c	hvc_console: Remove tty->low_latency on pseries backends	2009-03-11 10:44:26 +11:00
i8k.c	i8k: Add Dell Vostro systems	2009-01-02 10:28:32 -08:00
isicom.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
istallion.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
Kconfig	MIPS: Update VR41xx GPIO driver to use gpiolib	2009-07-03 15:45:25 +01:00
keyboard.c	Input: keyboard - remove warning about raw mode not supported	2009-04-20 21:21:24 -07:00
lp.c	device create: char: convert device_create_drvdata to device_create	2008-10-16 09:24:42 -07:00
Makefile	MIPS: Update VR41xx GPIO driver to use gpiolib	2009-07-03 15:45:25 +01:00
mbcs.c
mbcs.h
mem.c	drivers/char/mem.c: memory_open() cleanup: lookup minor device number from devlist	2009-06-18 13:03:54 -07:00
misc.c	Driver Core: misc: add nodename support for misc devices.	2009-06-15 21:30:25 -07:00
mmtimer.c
moxa.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
moxa.h
mspec.c
mxser.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
mxser.h
n_hdlc.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
n_r3964.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
n_tty.c	n_tty: do O_ONLCR translation as a single write	2009-09-05 12:46:07 -07:00
nozomi.c	tty: fix chars_in_buffers	2009-07-20 16:38:43 -07:00
nsc_gpio.c
nvram.c	[PATCH] nvram - convert PRINT_PROC to seq_file	2008-11-11 09:56:00 +00:00
nwbutton.c
nwbutton.h
nwflash.c	[ARM] netwinder: clean up GPIO naming	2008-12-13 09:12:07 +00:00
pc8736x_gpio.c	pc8736x_gpio: add support for PC87365 chips	2008-10-20 08:52:40 -07:00
ppdev.c	ppdev: reduce kernel log spam	2009-06-18 13:03:54 -07:00
ps3flash.c	ps3flash: Always read chunks of 256 KiB, and cache them	2009-06-15 16:47:27 +10:00
pty.c	pty: don't limit the writes to 'pty_space()' inside 'pty_write()'	2009-09-05 13:27:10 -07:00
random.c	Avoid ICE in get_random_int() with gcc-3.4.5	2009-05-19 11:25:35 -07:00
raw.c	Driver Core: raw: add nodename for raw devices	2009-06-15 21:30:26 -07:00
riscom8_reg.h
riscom8.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
riscom8.h
rocket_int.h	tty: rocketport uses different port flags to everyone else	2009-01-02 10:19:39 -08:00
rocket.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
rocket.h	tty: rocketport uses different port flags to everyone else	2009-01-02 10:19:39 -08:00
rtc.c	RTC: Remove the BKL.	2009-01-08 16:44:03 -07:00
scc.h	m68k: atari - Rename "mfp" to "st_mfp"	2009-02-22 09:23:02 -08:00
scx200_gpio.c
selection.c	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
ser_a2232.c	m68k: ser_a2232 - Kill warn_unused_result warnings	2009-01-12 20:56:39 +01:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
snsc_event.c
snsc.c	device create: char: convert device_create_drvdata to device_create	2008-10-16 09:24:42 -07:00
snsc.h
sonypi.c	Rationalize fasync return values	2009-03-16 08:34:35 -06:00
specialix_io8.h
specialix.c	specialix.c: convert nested spin_lock_irqsave to spin_lock	2009-07-20 16:38:43 -07:00
stallion.c	tty: Add carrier processing on close to the tty_port core	2009-06-11 08:50:56 -07:00
sx.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
sx.h
sxboards.h
sxwindow.h
synclink_gt.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
synclink.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
synclinkmp.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
sysrq.c	sysrq, kdump: make sysrq-c consistent	2009-07-29 19:10:36 -07:00
tb0219.c	Update Yoichi Yuasa's e-mail address	2009-07-03 15:45:29 +01:00
tlclk.c
toshiba.c
tty_audit.c	tty: remove buffer special casing	2009-06-11 08:51:02 -07:00
tty_buffer.c	pty: avoid forcing 'low_latency' tty flag	2009-07-29 12:15:56 -07:00
tty_io.c	tty: fix sanity check	2009-06-16 12:01:16 -07:00
tty_ioctl.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
tty_ldisc.c	tty: make sure to flush any pending work when halting the ldisc	2009-08-25 09:12:43 -07:00
tty_port.c	tty_port: Fix return on interrupted use	2009-07-17 08:50:43 -07:00
vc_screen.c	vc: create vcs(a) devices for consoles	2009-07-20 16:38:43 -07:00
viotape.c	tape: beyond ARRAY_SIZE of viocd_diskinfo	2009-06-02 10:32:34 +10:00
virtio_console.c	virtio: find_vqs/del_vqs virtio operations	2009-06-12 22:16:36 +09:30
vme_scc.c	m68k: vme_scc - Kill warn_unused_result warnings	2009-01-12 20:56:38 +01:00
vt_ioctl.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
vt.c	vt: drop bootmem/slab memory distinction	2009-07-16 09:19:16 -07:00