Author: mav
Date: Sun Sep 9 20:00:00 2012
New Revision: 240286
URL: http://svn.freebsd.org/changeset/base/240286
Log:
At least from A70M FCH chipsets AMD started to use their real vendor ID
(1022) in HPET. But according to report they still haven't fixed problem
with level-triggered interrupts.
Make workaround used for earlier chipsets apply to this new ID also.
PR: amd64/171355
MFC after: 3 days
Modified:
head/sys/dev/acpica/acpi_hpet.c
Modified: head/sys/dev/acpica/acpi_hpet.c
==============================================================================
--- head/sys/dev/acpica/acpi_hpet.c Sun Sep 9 19:20:23 2012
(r240285)
+++ head/sys/dev/acpica/acpi_hpet.c Sun Sep 9 20:00:00 2012
(r240286)
@@ -57,6 +57,7 @@ __FBSDID("$FreeBSD$");
#endif
#define HPET_VENDID_AMD 0x4353
+#define HPET_VENDID_AMD2 0x1022
#define HPET_VENDID_INTEL 0x8086
#define HPET_VENDID_NVIDIA 0x10de
#define HPET_VENDID_SW 0x1166
@@ -505,7 +506,7 @@ hpet_attach(device_t dev)
* properly, that makes it very unreliable - it freezes after any
* interrupt loss. Avoid legacy IRQs for AMD.
*/
- if (vendor == HPET_VENDID_AMD)
+ if (vendor == HPET_VENDID_AMD || vendor == HPET_VENDID_AMD2)
sc->allowed_irqs = 0x00000000;
/*
* NVidia MCP5x chipsets have number of unexplained interrupt
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