| /* |
| * arch/arm/mach-clps711x/include/mach/entry-macro.S |
| * |
| * Low-level IRQ helper macros for CLPS711X-based platforms |
| * |
| * This file is licensed under the terms of the GNU General Public |
| * License version 2. This program is licensed "as is" without any |
| * warranty of any kind, whether express or implied. |
| */ |
| #include <mach/hardware.h> |
| |
| .macro get_irqnr_preamble, base, tmp |
| .endm |
| |
| #if (INTSR2 - INTSR1) != (INTMR2 - INTMR1) |
| #error INTSR stride != INTMR stride |
| #endif |
| |
| .macro get_irqnr_and_base, irqnr, stat, base, mask |
| mov \base, #CLPS711X_VIRT_BASE |
| ldr \stat, [\base, #INTSR1] |
| ldr \mask, [\base, #INTMR1] |
| mov \irqnr, #4 |
| mov \mask, \mask, lsl #16 |
| and \stat, \stat, \mask, lsr #16 |
| movs \stat, \stat, lsr #4 |
| bne 1001f |
| |
| add \base, \base, #INTSR2 - INTSR1 |
| ldr \stat, [\base, #INTSR1] |
| ldr \mask, [\base, #INTMR1] |
| mov \irqnr, #16 |
| mov \mask, \mask, lsl #16 |
| and \stat, \stat, \mask, lsr #16 |
| |
| 1001: tst \stat, #255 |
| addeq \irqnr, \irqnr, #8 |
| moveq \stat, \stat, lsr #8 |
| tst \stat, #15 |
| addeq \irqnr, \irqnr, #4 |
| moveq \stat, \stat, lsr #4 |
| tst \stat, #3 |
| addeq \irqnr, \irqnr, #2 |
| moveq \stat, \stat, lsr #2 |
| tst \stat, #1 |
| addeq \irqnr, \irqnr, #1 |
| moveq \stat, \stat, lsr #1 |
| tst \stat, #1 @ bit 0 should be set |
| .endm |
| |
| |