diff options
| author |   Anton Blanchard <anton@samba.org> | 2005-05-01 08:58:46 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 08:58:46 -0700 |
| commit | eeb24de431ac8c80fd13a2c479cd0eb51b70484e (patch) | |
| tree | 00d5548ba1f4a441cc4386ec8bff924bcc33d722 /arch/ppc64/kernel | |
| parent | [PATCH] ppc64: firmware workaround (diff) | |
| download | linux-dev-eeb24de431ac8c80fd13a2c479cd0eb51b70484e.tar.xz linux-dev-eeb24de431ac8c80fd13a2c479cd0eb51b70484e.zip | |
[PATCH] ppc64: enforce medium thread priority in hypervisor calls
Calls into the hypervisor do not raise the thread priority. Ensure we are
running at medium priority upon entry to the hypervisor.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64/kernel')
| -rw-r--r-- | arch/ppc64/kernel/pSeries_hvCall.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/pSeries_hvCall.S b/arch/ppc64/kernel/pSeries_hvCall.S index 0715d3038019..176e8da76466 100644 --- a/arch/ppc64/kernel/pSeries_hvCall.S +++ b/arch/ppc64/kernel/pSeries_hvCall.S @@ -28,6 +28,8 @@ unsigned long *out3); R10 */ _GLOBAL(plpar_hcall) + HMT_MEDIUM + mfcr r0 std r8,STK_PARM(r8)(r1) /* Save out ptrs */ @@ -53,6 +55,8 @@ _GLOBAL(plpar_hcall) /* Simple interface with no output values (other than status) */ _GLOBAL(plpar_hcall_norets) + HMT_MEDIUM + mfcr r0 stw r0,8(r1) @@ -75,6 +79,8 @@ _GLOBAL(plpar_hcall_norets) unsigned long *out1); 120(R1) */ _GLOBAL(plpar_hcall_8arg_2ret) + HMT_MEDIUM + mfcr r0 ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ stw r0,8(r1) @@ -99,6 +105,8 @@ _GLOBAL(plpar_hcall_8arg_2ret) unsigned long *out4); 112(R1) */ _GLOBAL(plpar_hcall_4out) + HMT_MEDIUM + mfcr r0 stw r0,8(r1) |