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linux/drivers/parisc
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Guilherme G. Piccoli 829632dae8 parisc: Replace regular spinlock with spin_trylock on panic path 
The panic notifiers' callbacks execute in an atomic context, with
interrupts/preemption disabled, and all CPUs not running the panic
function are off, so it's very dangerous to wait on a regular
spinlock, there's a risk of deadlock.

Refactor the panic notifier of parisc/power driver to make use
of spin_trylock - for that, we've added a second version of the
soft-power function. Also, some comments were reorganized and
trailing white spaces, useless header inclusion and blank lines
were removed.

Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jeroen Roovers <jer@xs4all.nl>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2023-05-03 17:43:26 +02:00
..
asp.c
ccio-dma.c parisc: ccio-dma: Add missing iounmap in error path in ccio_probe() 2022-09-13 08:50:31 +02:00
dino.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
eisa_eeprom.c
eisa_enumerator.c parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver 2022-10-14 20:06:30 +02:00
eisa.c
gsc.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
gsc.h parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
hppb.c
iommu-helpers.h
iommu.h
iosapic_private.h
iosapic.c parisc: Export iosapic_serial_irq() symbol for serial port driver 2022-10-27 09:12:05 +02:00
Kconfig Kconfig: introduce HAS_IOPORT option and select it as necessary 2023-04-05 22:15:19 +02:00
lasi.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
lba_pci.c parisc: Check the return value of ioremap() in lba_driver_probe() 2022-08-01 18:43:23 +02:00
led.c parisc: led: Fix potential null-ptr-deref in start_task() 2022-12-17 23:19:38 +01:00
Makefile
pdc_stable.c parisc: pdc_stable: use strscpy() to instead of strncpy() 2023-01-09 09:51:56 +01:00
power.c parisc: Replace regular spinlock with spin_trylock on panic path 2023-05-03 17:43:26 +02:00
README.dino
sba_iommu.c parisc: Remove 64bit access on 32bit machines 2022-09-10 09:55:55 +02:00
superio.c
wax.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +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"
*/