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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-10-12 02:59:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-13 21:53:15 -0700 |
| commit | a650d3839e7a68321e5b76264398a63019b0928b (patch) | |
| tree | e0500c57687c57bc22d0100b74485033a5738dbf /arch/sparc64/kernel/entry.S | |
| parent | d060db63fd38a8a75f666576ef9999c28cdc31cf (diff) | |
| download | op-kernel-dev-a650d3839e7a68321e5b76264398a63019b0928b.zip op-kernel-dev-a650d3839e7a68321e5b76264398a63019b0928b.tar.gz | |
[SPARC64]: Make IVEC pointers 64-bit.
Currently we chain IVEC entries using 32-bit "pointers"
because we know that the ivector_table is in the main
kernel image, thus below 4GB.
This uses proper 64-bit pointers instead.
Whilst this bloats up the kernel image size, this sets
the infrastructure necessary to significantly shrink the
kernel size by using physical addresses and dynamically
allocating the ivector table.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/entry.S')
| -rw-r--r-- | arch/sparc64/kernel/entry.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index 8059531..9a78529 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -430,15 +430,15 @@ do_ivec: membar #Sync sethi %hi(ivector_table), %g2 - sllx %g3, 3, %g3 + sllx %g3, 4, %g3 or %g2, %lo(ivector_table), %g2 add %g2, %g3, %g3 TRAP_LOAD_IRQ_WORK(%g6, %g1) - lduw [%g6], %g5 /* g5 = irq_work(cpu) */ - stw %g5, [%g3 + 0x00] /* bucket->irq_chain = g5 */ - stw %g3, [%g6] /* irq_work(cpu) = bucket */ + ldx [%g6], %g5 /* g5 = irq_work(cpu) */ + stx %g5, [%g3 + 0x00] /* bucket->irq_chain = g5 */ + stx %g3, [%g6] /* irq_work(cpu) = bucket */ wr %g0, 1 << PIL_DEVICE_IRQ, %set_softint retry do_ivec_xcall: |
