diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2005-09-26 00:32:17 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-09-26 00:32:17 -0700 |
| commit | 80dc0d6b44ce0f01df58d8899e46612690ed7d81 (patch) | |
| tree | 570b8e834c0fae0793bdf75dd2fd2516b0fabf4f /include | |
| parent | 56425306517ef28a9b480161cdb96d182172bc1d (diff) | |
[SPARC64]: Probe D/I/E-cache config and use.
At boot time, determine the D-cache, I-cache and E-cache size and
line-size. Use them in cache flushes when appropriate.
This change was motivated by discovering that the D-cache on
UltraSparc-IIIi and later are 64K not 32K, and the flushes done by the
Cheetah error handlers were assuming a 32K size.
There are still some pieces of code that are hard coding things and
will need to be fixed up at some point.
While we're here, fix the D-cache and I-cache parity error handlers
to run with interrupts disabled, and when the trap occurs at trap
level > 1 log the event via a counter displayed in /proc/cpuinfo.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-sparc64/cpudata.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h index 9a3a81f1cc5..74de79dca91 100644 --- a/include/asm-sparc64/cpudata.h +++ b/include/asm-sparc64/cpudata.h @@ -22,6 +22,16 @@ typedef struct { unsigned int __pad1; unsigned long *pte_cache[2]; unsigned long *pgd_cache; + + /* Dcache line 3, rarely used */ + unsigned int dcache_size; + unsigned int dcache_line_size; + unsigned int icache_size; + unsigned int icache_line_size; + unsigned int ecache_size; + unsigned int ecache_line_size; + unsigned int __pad2; + unsigned int __pad3; } cpuinfo_sparc; DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); |