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John David Anglin 384c1d931b parisc: Use implicit space register selection for loading the coherence index of I/O pdirs 
commit 63923d2c3800919774f5c651d503d1dd2adaddd5 upstream.

We only support I/O to kernel space. Using %sr1 to load the coherence
index may be racy unless interrupts are disabled. This patch changes the
code used to load the coherence index to use implicit space register
selection. This saves one instruction and eliminates the race.

Tested on rp3440, c8000 and c3750.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-11 12:20:51 +02:00
..
asp.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00
ccio-dma.c parisc: Use implicit space register selection for loading the coherence index of I/O pdirs 2019-06-11 12:20:51 +02:00
ccio-rm-dma.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00
dino.c parisc: Show unhashed HPA of Dino chip 2018-01-02 21:01:01 +01:00
eisa.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00
eisa_eeprom.c parisc: Show unhashed EISA EEPROM address 2018-01-02 21:01:02 +01:00
eisa_enumerator.c
gsc.c
gsc.h
hppb.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00
iommu-helpers.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iosapic.c
iosapic_private.h
Kconfig iommu-helper: mark iommu_is_span_boundary as inline 2018-05-09 06:55:44 +02:00
lasi.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00
lba_pci.c parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode 2018-03-27 18:52:22 +02:00
led.c parisc: Skip registering LED when running in QEMU 2019-05-25 18:23:23 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pdc_stable.c
power.c parisc: Directly call machine_power_off() in power button driver 2018-03-27 18:52:22 +02:00
README.dino
sba_iommu.c parisc: Use implicit space register selection for loading the coherence index of I/O pdirs 2019-06-11 12:20:51 +02:00
superio.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00
wax.c parisc: Fix section mismatches in parisc core drivers 2017-08-22 16:34:36 +02:00

README.dino 

/*
** HP VISUALIZE Workstation PCI Bus Defect
**
** "HP has discovered a potential system defect that can affect
** the behavior of five models of HP VISUALIZE workstations when
** equipped with third-party or customer-installed PCI I/O expansion
** cards. The defect is limited to the HP C180, C160, C160L, B160L,
** and B132L VISUALIZE workstations, and will only be encountered
** when data is transmitted through PCI I/O expansion cards on the
** PCI bus. HP-supplied graphics cards that utilize the PCI bus are
** not affected."
**
** http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?locale=en_US&prodTypeId=12454&prodSeriesId=44443
**
**	Product		First Good Serial Number
**  C200/C240 (US)	US67350000
**B132L+/B180 (US)	US67390000
**   C200 (Europe)	3713G01000
**  B180L (Europe)	3720G01000
**
** Note that many boards were fixed/replaced under a free replacement
** program. Assume a machine is only "suspect" until proven otherwise.
**
** "The pci_check program will also be available as application
**  patch PHSS_12295"
*/