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| author | David S. Miller <davem@davemloft.net> | 2006-06-20 10:20:00 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-06-20 10:20:00 +0200 |
| commit | fd0504c3217d6d1bc8f33f53fb536299cae8feda (patch) | |
| tree | 4379f5376358d1f54fc183f458614f289ed6d326 /include/asm-sparc64/cpudata.h | |
| parent | [SPARC]: Fix iommu_flush_iotlb end address (diff) | |
| download | linux-fd0504c3217d6d1bc8f33f53fb536299cae8feda.tar.xz linux-fd0504c3217d6d1bc8f33f53fb536299cae8feda.zip | |
[SPARC64]: Send all device interrupts via one PIL.
This is the first in a series of cleanups that will hopefully
allow a seamless attempt at using the generic IRQ handling
infrastructure in the Linux kernel.
Define PIL_DEVICE_IRQ and vector all device interrupts through
there.
Get rid of the ugly pil0_dummy_{bucket,desc}, instead vector
the timer interrupt directly to a specific handler since the
timer interrupt is the only event that will be signaled on
PIL 14.
The irq_worklist is now in the per-cpu trap_block[].
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/cpudata.h')
| -rw-r--r-- | include/asm-sparc64/cpudata.h | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h index 9d6a6dbaf126..f2cc9411b4c7 100644 --- a/include/asm-sparc64/cpudata.h +++ b/include/asm-sparc64/cpudata.h @@ -74,8 +74,10 @@ struct trap_per_cpu { unsigned long tsb_huge; unsigned long tsb_huge_temp; -/* Dcache line 8: Unused, needed to keep trap_block a power-of-2 in size. */ - unsigned long __pad2[4]; +/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size. */ + unsigned int irq_worklist; + unsigned int __pad1; + unsigned long __pad2[3]; } __attribute__((aligned(64))); extern struct trap_per_cpu trap_block[NR_CPUS]; extern void init_cur_cpu_trap(struct thread_info *); @@ -119,6 +121,7 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, #define TRAP_PER_CPU_CPU_LIST_PA 0xc8 #define TRAP_PER_CPU_TSB_HUGE 0xd0 #define TRAP_PER_CPU_TSB_HUGE_TEMP 0xd8 +#define TRAP_PER_CPU_IRQ_WORKLIST 0xe0 #define TRAP_BLOCK_SZ_SHIFT 8 @@ -171,11 +174,8 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, /* Clobbers TMP, loads local processor's IRQ work area into DEST. */ #define TRAP_LOAD_IRQ_WORK(DEST, TMP) \ - __GET_CPUID(TMP) \ - sethi %hi(__irq_work), DEST; \ - sllx TMP, 6, TMP; \ - or DEST, %lo(__irq_work), DEST; \ - add DEST, TMP, DEST; + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + add DEST, TRAP_PER_CPU_IRQ_WORKLIST, DEST; /* Clobbers TMP, loads DEST with current thread info pointer. */ #define TRAP_LOAD_THREAD_REG(DEST, TMP) \ @@ -211,9 +211,10 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; +/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ #define TRAP_LOAD_IRQ_WORK(DEST, TMP) \ - sethi %hi(__irq_work), DEST; \ - or DEST, %lo(__irq_work), DEST; + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + add DEST, TRAP_PER_CPU_IRQ_WORKLIST, DEST; #define TRAP_LOAD_THREAD_REG(DEST, TMP) \ TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ |