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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-05 14:20:31 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-20 11:03:22 +1000 |
| commit | a5d4f3ad3a28cf046836b9bfae61d532b8f77036 (patch) | |
| tree | 6940ace9422e91459d819b385dacf9b2ab44bd50 /arch/powerpc/kernel/cpu_setup_power7.S | |
| parent | 2dd60d79e0202628a47af9812a84d502cc63628c (diff) | |
| download | blackbird-op-linux-a5d4f3ad3a28cf046836b9bfae61d532b8f77036.tar.gz blackbird-op-linux-a5d4f3ad3a28cf046836b9bfae61d532b8f77036.zip | |
powerpc: Base support for exceptions using HSRR0/1
Pass the register type to the prolog, also provides alternate "HV"
version of hardware interrupt (0x500) and adjust LPES accordingly
We tag those interrupts by setting bit 0x2 in the trap number
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/cpu_setup_power7.S')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_power7.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_power7.S b/arch/powerpc/kernel/cpu_setup_power7.S index f2b317817c4e..e801ef15d6d0 100644 --- a/arch/powerpc/kernel/cpu_setup_power7.S +++ b/arch/powerpc/kernel/cpu_setup_power7.S @@ -52,13 +52,14 @@ __init_hvmode_206: __init_LPCR: /* Setup a sane LPCR: * - * LPES = 0b11 (SRR0/1 used for 0x500) + * LPES = 0b01 (HSRR0/1 used for 0x500) * PECE = 0b111 * * Other bits untouched for now */ mfspr r3,SPRN_LPCR ori r3,r3,(LPCR_LPES0|LPCR_LPES1) + xori r3,r3, LPCR_LPES0 ori r3,r3,(LPCR_PECE0|LPCR_PECE1|LPCR_PECE2) mtspr SPRN_LPCR,r3 isync |
