| Magnus Damm | 2bc58a6 | 2011-06-13 06:46:44 +0100 | [diff] [blame^] | 1 | #include <asm/assembler.h> |
| 2 | |
| Magnus Damm | cd544ce | 2010-12-22 13:20:08 +0100 | [diff] [blame] | 3 | /* |
| 4 | * Interrupt handling. Preserves r7, r8, r9 |
| 5 | */ |
| 6 | .macro arch_irq_handler_default |
| 7 | get_irqnr_preamble r5, lr |
| 8 | 1: get_irqnr_and_base r0, r6, r5, lr |
| 9 | movne r1, sp |
| 10 | @ |
| 11 | @ routine called with r0 = irq number, r1 = struct pt_regs * |
| 12 | @ |
| 13 | adrne lr, BSYM(1b) |
| 14 | bne asm_do_IRQ |
| 15 | |
| 16 | #ifdef CONFIG_SMP |
| 17 | /* |
| 18 | * XXX |
| 19 | * |
| 20 | * this macro assumes that irqstat (r6) and base (r5) are |
| 21 | * preserved from get_irqnr_and_base above |
| 22 | */ |
| 23 | ALT_SMP(test_for_ipi r0, r6, r5, lr) |
| 24 | ALT_UP_B(9997f) |
| Russell King | 4ec3eb1 | 2011-01-06 22:31:35 +0000 | [diff] [blame] | 25 | movne r1, sp |
| Magnus Damm | cd544ce | 2010-12-22 13:20:08 +0100 | [diff] [blame] | 26 | adrne lr, BSYM(1b) |
| 27 | bne do_IPI |
| 28 | |
| 29 | #ifdef CONFIG_LOCAL_TIMERS |
| 30 | test_for_ltirq r0, r6, r5, lr |
| 31 | movne r0, sp |
| 32 | adrne lr, BSYM(1b) |
| 33 | bne do_local_timer |
| 34 | #endif |
| 35 | #endif |
| 36 | 9997: |
| 37 | .endm |
| 38 | |
| 39 | .macro arch_irq_handler, symbol_name |
| 40 | .align 5 |
| 41 | .global \symbol_name |
| 42 | \symbol_name: |
| 43 | mov r4, lr |
| 44 | arch_irq_handler_default |
| 45 | mov pc, r4 |
| 46 | .endm |