projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * include/asm-arm/arch-CLPS711x/entry-macro.S | |
| 3 | * | |
| 4 | * Low-level IRQ helper macros for CLPS711X-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 | */ | |
| 78ff18a4 | 10 | #include <asm/hardware.h> |
| 1da177e4 LT |
11 | #include <asm/hardware/clps7111.h> |
| 12 | ||
| 13 | .macro disable_fiq | |
| 14 | .endm | |
| 15 | ||
| 16 | #if (INTSR2 - INTSR1) != (INTMR2 - INTMR1) | |
| 17 | #error INTSR stride != INTMR stride | |
| 18 | #endif | |
| 19 | ||
| 20 | .macro get_irqnr_and_base, irqnr, stat, base, mask | |
| 21 | mov \base, #CLPS7111_BASE | |
| 22 | ldr \stat, [\base, #INTSR1] | |
| 23 | ldr \mask, [\base, #INTMR1] | |
| 24 | mov \irqnr, #4 | |
| 25 | mov \mask, \mask, lsl #16 | |
| 26 | and \stat, \stat, \mask, lsr #16 | |
| 27 | movs \stat, \stat, lsr #4 | |
| 28 | bne 1001f | |
| 29 | ||
| 30 | add \base, \base, #INTSR2 - INTSR1 | |
| 31 | ldr \stat, [\base, #INTSR1] | |
| 32 | ldr \mask, [\base, #INTMR1] | |
| 33 | mov \irqnr, #16 | |
| 34 | mov \mask, \mask, lsl #16 | |
| 35 | and \stat, \stat, \mask, lsr #16 | |
| 36 | ||
| 37 | 1001: tst \stat, #255 | |
| 38 | addeq \irqnr, \irqnr, #8 | |
| 39 | moveq \stat, \stat, lsr #8 | |
| 40 | tst \stat, #15 | |
| 41 | addeq \irqnr, \irqnr, #4 | |
| 42 | moveq \stat, \stat, lsr #4 | |
| 43 | tst \stat, #3 | |
| 44 | addeq \irqnr, \irqnr, #2 | |
| 45 | moveq \stat, \stat, lsr #2 | |
| 46 | tst \stat, #1 | |
| 47 | addeq \irqnr, \irqnr, #1 | |
| 48 | moveq \stat, \stat, lsr #1 | |
| 49 | tst \stat, #1 @ bit 0 should be set | |
| 50 | .endm | |
| 51 | ||
| 52 |