projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | */ | |
| be509729 | 10 | #include <asm/arch/hardware.h> |
| 78ff18a4 | 11 | #include <asm/arch/irqs.h> |
| 1da177e4 LT |
12 | |
| 13 | .macro disable_fiq | |
| 14 | .endm | |
| 15 | ||
| f80dff9d DW |
16 | .macro get_irqnr_preamble, base, tmp |
| 17 | .endm | |
| 18 | ||
| 19 | .macro arch_ret_to_user, tmp1, tmp2 | |
| 20 | .endm | |
| 21 | ||
| 1da177e4 | 22 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| 8118d124 EM |
23 | mrc p15, 0, \tmp, c0, c0, 0 @ CPUID |
| 24 | mov \tmp, \tmp, lsr #13 | |
| 25 | and \tmp, \tmp, #0x7 @ Core G | |
| 26 | cmp \tmp, #1 | |
| 27 | bhi 1004f | |
| 28 | ||
| 1da177e4 LT |
29 | mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000 |
| 30 | add \base, \base, #0x00d00000 | |
| 31 | ldr \irqstat, [\base, #0] @ ICIP | |
| 32 | ldr \irqnr, [\base, #4] @ ICMR | |
| 8118d124 EM |
33 | b 1002f |
| 34 | ||
| 35 | 1004: | |
| 36 | mrc p6, 0, \irqstat, c6, c0, 0 @ ICIP2 | |
| 37 | mrc p6, 0, \irqnr, c7, c0, 0 @ ICMR2 | |
| a3359e21 | 38 | ands \irqnr, \irqstat, \irqnr |
| 8118d124 EM |
39 | beq 1003f |
| 40 | rsb \irqstat, \irqnr, #0 | |
| 41 | and \irqstat, \irqstat, \irqnr | |
| 42 | clz \irqnr, \irqstat | |
| 43 | rsb \irqnr, \irqnr, #31 | |
| 44 | add \irqnr, \irqnr, #32 | |
| 45 | b 1001f | |
| 46 | 1003: | |
| 47 | mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP | |
| 48 | mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR | |
| 49 | 1002: | |
| 1da177e4 LT |
50 | ands \irqnr, \irqstat, \irqnr |
| 51 | beq 1001f | |
| 52 | rsb \irqstat, \irqnr, #0 | |
| 53 | and \irqstat, \irqstat, \irqnr | |
| 54 | clz \irqnr, \irqstat | |
| 486c9551 | 55 | rsb \irqnr, \irqnr, #31 |
| 1da177e4 LT |
56 | 1001: |
| 57 | .endm |