?? entry-macro.s
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/* * include/asm-arm/arch-ixp2000/entry-macro.S * * Low-level IRQ helper macros for IXP2000-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. */ .macro disable_fiq .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp mov \irqnr, #0x0 @clear out irqnr as default mov \base, #0xfe000000 orr \base, \base, #0x00e00000 orr \base, \base, #0x08 ldr \irqstat, [\base] @ get interrupts cmp \irqstat, #0 beq 1001f clz \irqnr, \irqstat mov \base, #31 subs \irqnr, \base, \irqnr /* * We handle PCIA and PCIB here so we don't have an * extra layer of code just to check these two bits. */ cmp \irqnr, #IRQ_IXP2000_PCI bne 1001f mov \base, #0xfe000000 orr \base, \base, #0x00c00000 orr \base, \base, #0x00000100 orr \base, \base, #0x00000058 ldr \irqstat, [\base] mov \tmp, #(1<<26) tst \irqstat, \tmp movne \irqnr, #IRQ_IXP2000_PCIA bne 1001f mov \tmp, #(1<<27) tst \irqstat, \tmp movne \irqnr, #IRQ_IXP2000_PCIB1001: .endm
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