| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * include/asm-arm/arch-pxa/entry-macro.S |
| 3 | * |
| 4 | * Low-level IRQ helper macros for PXA-based platforms |
| 5 | * |
| 6 | * This file is licensed under the terms of the GNU General Public |
| 7 | * License version 2. This program is licensed "as is" without any |
| 8 | * warranty of any kind, whether express or implied. |
| 9 | */ |
| Russell King | 78ff18a | 2006-01-03 17:39:34 +0000 | [diff] [blame] | 10 | #include <asm/hardware.h> |
| 11 | #include <asm/arch/irqs.h> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
| 13 | .macro disable_fiq |
| 14 | .endm |
| 15 | |
| Dan Williams | f80dff9 | 2007-02-16 22:16:32 +0100 | [diff] [blame] | 16 | .macro get_irqnr_preamble, base, tmp |
| 17 | .endm |
| 18 | |
| 19 | .macro arch_ret_to_user, tmp1, tmp2 |
| 20 | .endm |
| 21 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| 23 | #ifdef CONFIG_PXA27x |
| 24 | mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP |
| 25 | mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR |
| 26 | #else |
| 27 | mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000 |
| 28 | add \base, \base, #0x00d00000 |
| 29 | ldr \irqstat, [\base, #0] @ ICIP |
| 30 | ldr \irqnr, [\base, #4] @ ICMR |
| 31 | #endif |
| 32 | ands \irqnr, \irqstat, \irqnr |
| 33 | beq 1001f |
| 34 | rsb \irqstat, \irqnr, #0 |
| 35 | and \irqstat, \irqstat, \irqnr |
| 36 | clz \irqnr, \irqstat |
| 37 | rsb \irqnr, \irqnr, #(31 - PXA_IRQ_SKIP) |
| 38 | 1001: |
| 39 | .endm |