diff options
| author | Olof Johansson <olof@austin.ibm.com> | 2004-09-02 20:23:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-09-02 20:23:30 -0700 |
| commit | ad15f36c96f93d424db354773183404cdb420e03 (patch) | |
| tree | dd34e8136dfcb605b7ca12fea262e145368b51c3 /include | |
| parent | dd51cabb6adff7022e0c81a4a06eb160a2c90ce3 (diff) | |
[PATCH] ppc64: Make use of batched IOMMU calls on pSeries LPARs
Implement the HCALLs to do more than one TCE setup or invalidation at a
time on pSeries LPAR. Previous implementation did one hypervisor call per
setup or teardown, resulting in significant overhead.
A simple test of "time dd if=/dev/sda of=/dev/null bs=128k" shows the
amount of system time go down by about 5% by using the multi-tce calls.
Signed-off-by: Olof Johansson <olof@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ppc64/hvcall.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/asm-ppc64/hvcall.h b/include/asm-ppc64/hvcall.h index f47cc032919c..6ce5ef9c1692 100644 --- a/include/asm-ppc64/hvcall.h +++ b/include/asm-ppc64/hvcall.h @@ -101,10 +101,12 @@ #define H_VIO_SIGNAL 0x104 #define H_SEND_CRQ 0x108 #define H_COPY_RDMA 0x110 -#define H_POLL_PENDING 0x1D8 +#define H_STUFF_TCE 0x138 +#define H_PUT_TCE_INDIRECT 0x13C #define H_VTERM_PARTNER_INFO 0x150 -#define H_REGISTER_VTERM 0x154 -#define H_FREE_VTERM 0x158 +#define H_REGISTER_VTERM 0x154 +#define H_FREE_VTERM 0x158 +#define H_POLL_PENDING 0x1D8 /* plpar_hcall() -- Generic call interface using above opcodes * |