From a650d3839e7a68321e5b76264398a63019b0928b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 12 Oct 2007 02:59:40 -0700 Subject: [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 --- arch/sparc64/kernel/entry.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/sparc64/kernel/entry.S') diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index 8059531bf0ac..9a785293203f 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: -- cgit v1.2.3