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https://github.com/edk2-porting/linux-next.git
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a88b5ba8bd
o Move all files from sparc64/kernel/ to sparc/kernel - rename as appropriate o Update sparc/Makefile to the changes o Update sparc/kernel/Makefile to include the sparc64 files NOTE: This commit changes link order on sparc64! Link order had to change for either of sparc32 and sparc64. And assuming sparc64 see more testing than sparc32 change link order on sparc64 where issues will be caught faster. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
52 lines
1.1 KiB
ArmAsm
52 lines
1.1 KiB
ArmAsm
/* The registers for cross calls will be:
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*
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* DATA 0: [low 32-bits] Address of function to call, jmp to this
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* [high 32-bits] MMU Context Argument 0, place in %g5
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* DATA 1: Address Argument 1, place in %g1
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* DATA 2: Address Argument 2, place in %g7
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*
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* With this method we can do most of the cross-call tlb/cache
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* flushing very quickly.
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*/
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.align 32
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.globl do_ivec
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.type do_ivec,#function
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do_ivec:
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mov 0x40, %g3
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ldxa [%g3 + %g0] ASI_INTR_R, %g3
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sethi %hi(KERNBASE), %g4
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cmp %g3, %g4
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bgeu,pn %xcc, do_ivec_xcall
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srlx %g3, 32, %g5
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stxa %g0, [%g0] ASI_INTR_RECEIVE
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membar #Sync
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sethi %hi(ivector_table_pa), %g2
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ldx [%g2 + %lo(ivector_table_pa)], %g2
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sllx %g3, 4, %g3
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add %g2, %g3, %g3
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TRAP_LOAD_IRQ_WORK_PA(%g6, %g1)
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ldx [%g6], %g5
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stxa %g5, [%g3] ASI_PHYS_USE_EC
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stx %g3, [%g6]
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wr %g0, 1 << PIL_DEVICE_IRQ, %set_softint
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retry
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do_ivec_xcall:
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mov 0x50, %g1
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ldxa [%g1 + %g0] ASI_INTR_R, %g1
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srl %g3, 0, %g3
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mov 0x60, %g7
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ldxa [%g7 + %g0] ASI_INTR_R, %g7
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stxa %g0, [%g0] ASI_INTR_RECEIVE
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membar #Sync
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ba,pt %xcc, 1f
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nop
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.align 32
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1: jmpl %g3, %g0
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nop
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.size do_ivec,.-do_ivec
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