lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[SPARC64]: Sun4v interrupt handling.

Browse Source 
Sun4v has 4 interrupt queues: cpu, device, resumable errors,
and non-resumable errors.  A set of head/tail offset pointers
help maintain a work queue in physical memory.  The entries
are 64-bytes in size.

Each queue is allocated then registered with the hypervisor
as we bring cpus up.

The two error queues each get a kernel side buffer that we
use to quickly empty the main interrupt queue before we
call up to C code to log the event and possibly take evasive
action.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-02-08 02:53:50 -08:00
parent ac29c11d4c
commit 5b0c0572fc
6 changed files with 568 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/sparc64/kernel/head.S
View File

@@ -511,13 +511,14 @@ setup_tba:
sparc64_boot_end:
#include "systbls.S"
#include "sun4v_tlb_miss.S"
#include "ktlb.S"
#include "tsb.S"
#include "etrap.S"
#include "rtrap.S"
#include "winfixup.S"
#include "entry.S"
#include "sun4v_tlb_miss.S"
#include "sun4v_ivec.S"
/*
* The following skip makes sure the trap table in ttable.S is aligned