| The Android Open Source Project | 1dc9e47 | 2009-03-03 19:28:35 -0800 | [diff] [blame^] | 1 | /**************************************************************************** |
| 2 | **************************************************************************** |
| 3 | *** |
| 4 | *** This header was automatically generated from a Linux kernel header |
| 5 | *** of the same name, to make information necessary for userspace to |
| 6 | *** call into the kernel available to libc. It contains only constants, |
| 7 | *** structures, and macros generated from the original header, and thus, |
| 8 | *** contains no copyrightable information. |
| 9 | *** |
| 10 | **************************************************************************** |
| 11 | ****************************************************************************/ |
| 12 | #ifndef X86_64_PDA_H |
| 13 | #define X86_64_PDA_H |
| 14 | |
| 15 | #ifndef __ASSEMBLY__ |
| 16 | #include <linux/stddef.h> |
| 17 | #include <linux/types.h> |
| 18 | #include <linux/cache.h> |
| 19 | #include <asm/page.h> |
| 20 | |
| 21 | struct x8664_pda { |
| 22 | struct task_struct *pcurrent; |
| 23 | unsigned long data_offset; |
| 24 | unsigned long kernelstack; |
| 25 | unsigned long oldrsp; |
| 26 | int irqcount; |
| 27 | int cpunumber; |
| 28 | char *irqstackptr; |
| 29 | int nodenumber; |
| 30 | unsigned int __softirq_pending; |
| 31 | unsigned int __nmi_count; |
| 32 | short mmu_state; |
| 33 | short isidle; |
| 34 | struct mm_struct *active_mm; |
| 35 | unsigned apic_timer_irqs; |
| 36 | unsigned irq0_irqs; |
| 37 | unsigned irq_resched_count; |
| 38 | unsigned irq_call_count; |
| 39 | unsigned irq_tlb_count; |
| 40 | unsigned irq_thermal_count; |
| 41 | unsigned irq_threshold_count; |
| 42 | unsigned irq_spurious_count; |
| 43 | } ____cacheline_aligned_in_smp; |
| 44 | |
| 45 | #define cpu_pda(i) (_cpu_pda[i]) |
| 46 | |
| 47 | #define pda_offset(field) offsetof(struct x8664_pda, field) |
| 48 | |
| 49 | #define pda_to_op(op,field,val) do { typedef typeof(_proxy_pda.field) T__; if (0) { T__ tmp__; tmp__ = (val); } switch (sizeof(_proxy_pda.field)) { case 2: asm(op "w %1,%%gs:%c2" : "+m" (_proxy_pda.field) : "ri" ((T__)val), "i"(pda_offset(field))); break; case 4: asm(op "l %1,%%gs:%c2" : "+m" (_proxy_pda.field) : "ri" ((T__)val), "i" (pda_offset(field))); break; case 8: asm(op "q %1,%%gs:%c2": "+m" (_proxy_pda.field) : "ri" ((T__)val), "i"(pda_offset(field))); break; default: __bad_pda_field(); } } while (0) |
| 50 | |
| 51 | #define pda_from_op(op,field) ({ typeof(_proxy_pda.field) ret__; switch (sizeof(_proxy_pda.field)) { case 2: asm(op "w %%gs:%c1,%0" : "=r" (ret__) : "i" (pda_offset(field)), "m" (_proxy_pda.field)); break; case 4: asm(op "l %%gs:%c1,%0": "=r" (ret__): "i" (pda_offset(field)), "m" (_proxy_pda.field)); break; case 8: asm(op "q %%gs:%c1,%0": "=r" (ret__) : "i" (pda_offset(field)), "m" (_proxy_pda.field)); break; default: __bad_pda_field(); } ret__; }) |
| 52 | |
| 53 | #define read_pda(field) pda_from_op("mov",field) |
| 54 | #define write_pda(field,val) pda_to_op("mov",field,val) |
| 55 | #define add_pda(field,val) pda_to_op("add",field,val) |
| 56 | #define sub_pda(field,val) pda_to_op("sub",field,val) |
| 57 | #define or_pda(field,val) pda_to_op("or",field,val) |
| 58 | |
| 59 | #define test_and_clear_bit_pda(bit,field) ({ int old__; asm volatile("btr %2,%%gs:%c3\n\tsbbl %0,%0" : "=r" (old__), "+m" (_proxy_pda.field) : "dIr" (bit), "i" (pda_offset(field)) : "memory"); old__; }) |
| 60 | |
| 61 | #endif |
| 62 | |
| 63 | #define PDA_STACKOFFSET (5*8) |
| 64 | |
| 65 | #endif |