Message ID | 4a609ab9f76ebeb01742ea09b42e2ec3d7cb2418.1566491310.git.christophe.leroy@c-s.fr (mailing list archive) |
---|---|
State | Superseded |
Headers | show |
Series | powerpc/vdso32 enhancement and optimisation | expand |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/apply_patch | success | Successfully applied on branch next (0e4523c0b4f64eaf7abe59e143e6bdf8f972acff) |
snowpatch_ozlabs/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 69 lines checked |
Hi, [This is an automated email] This commit has been processed because it contains a "Fixes:" tag, fixing commit: a7f290dad32e [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel. The bot has tested the following trees: v5.2.9, v4.19.67, v4.14.139, v4.9.189, v4.4.189. v5.2.9: Build OK! v4.19.67: Build OK! v4.14.139: Failed to apply! Possible dependencies: 5c929885f1bb ("powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE") b5b4453e7912 ("powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038") v4.9.189: Failed to apply! Possible dependencies: 454656155110 ("powerpc/asm: Use OFFSET macro in asm-offsets.c") 5c929885f1bb ("powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE") 5d451a87e5eb ("powerpc/64: Retrieve number of L1 cache sets from device-tree") 7c5b06cadf27 ("KVM: PPC: Book3S HV: Adapt TLB invalidations to work on POWER9") 83677f551e0a ("KVM: PPC: Book3S HV: Adjust host/guest context switch for POWER9") 902e06eb86cd ("powerpc/32: Change the stack protector canary value per task") b5b4453e7912 ("powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038") bd067f83b084 ("powerpc/64: Fix naming of cache block vs. cache line") e2827fe5c156 ("powerpc/64: Clean up ppc64_caches using a struct per cache") e9cf1e085647 ("KVM: PPC: Book3S HV: Add new POWER9 guest-accessible SPRs") f4c51f841d2a ("KVM: PPC: Book3S HV: Modify guest entry/exit paths to handle radix guests") v4.4.189: Failed to apply! Possible dependencies: 153086644fd1 ("powerpc/ftrace: Add support for -mprofile-kernel ftrace ABI") 3eb5d5888dc6 ("powerpc: Add ppc_strict_facility_enable boot option") 454656155110 ("powerpc/asm: Use OFFSET macro in asm-offsets.c") 579e633e764e ("powerpc: create flush_all_to_thread()") 5c929885f1bb ("powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE") 70fe3d980f5f ("powerpc: Restore FPU/VEC/VSX if previously used") 85baa095497f ("powerpc/livepatch: Add live patching support on ppc64le") 902e06eb86cd ("powerpc/32: Change the stack protector canary value per task") b5b4453e7912 ("powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038") bf76f73c5f65 ("powerpc: enable UBSAN support") c208505900b2 ("powerpc: create giveup_all()") d1e1cf2e38de ("powerpc: clean up asm/switch_to.h") dc4fbba11e46 ("powerpc: Create disable_kernel_{fp,altivec,vsx,spe}()") f17c4e01e906 ("powerpc/module: Mark module stubs with a magic value") NOTE: The patch will not be queued to stable trees until it is upstream. How should we proceed with this patch? -- Thanks, Sasha
diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h index c61d59ed3b45..2ccb938d8544 100644 --- a/arch/powerpc/include/asm/vdso_datapage.h +++ b/arch/powerpc/include/asm/vdso_datapage.h @@ -82,6 +82,7 @@ struct vdso_data { __s32 wtom_clock_nsec; /* Wall to monotonic clock nsec */ __s64 wtom_clock_sec; /* Wall to monotonic clock sec */ struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */ + __u32 hrtimer_res; /* hrtimer resolution */ __u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */ }; @@ -103,6 +104,7 @@ struct vdso_data { __s32 wtom_clock_nsec; struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */ __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */ + __u32 hrtimer_res; /* hrtimer resolution */ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */ __u32 dcache_block_size; /* L1 d-cache block size */ __u32 icache_block_size; /* L1 i-cache block size */ diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 4ccb6b3a7fbd..6279053967fd 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -387,6 +387,7 @@ int main(void) OFFSET(WTOM_CLOCK_NSEC, vdso_data, wtom_clock_nsec); OFFSET(STAMP_XTIME, vdso_data, stamp_xtime); OFFSET(STAMP_SEC_FRAC, vdso_data, stamp_sec_fraction); + OFFSET(CLOCK_HRTIMER_RES, vdso_data, hrtimer_res); OFFSET(CFG_ICACHE_BLOCKSZ, vdso_data, icache_block_size); OFFSET(CFG_DCACHE_BLOCKSZ, vdso_data, dcache_block_size); OFFSET(CFG_ICACHE_LOGBLOCKSZ, vdso_data, icache_log_block_size); @@ -417,7 +418,6 @@ int main(void) DEFINE(CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE); DEFINE(CLOCK_MONOTONIC_COARSE, CLOCK_MONOTONIC_COARSE); DEFINE(NSEC_PER_SEC, NSEC_PER_SEC); - DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); #ifdef CONFIG_BUG DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry)); diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 694522308cd5..619447b1b797 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -959,6 +959,7 @@ void update_vsyscall(struct timekeeper *tk) vdso_data->wtom_clock_nsec = tk->wall_to_monotonic.tv_nsec; vdso_data->stamp_xtime = xt; vdso_data->stamp_sec_fraction = frac_sec; + vdso_data->hrtimer_res = hrtimer_resolution; smp_wmb(); ++(vdso_data->tb_update_count); } diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S index decd263c16e0..355b537d327a 100644 --- a/arch/powerpc/kernel/vdso32/gettimeofday.S +++ b/arch/powerpc/kernel/vdso32/gettimeofday.S @@ -206,12 +206,15 @@ V_FUNCTION_BEGIN(__kernel_clock_getres) cror cr0*4+eq,cr0*4+eq,cr1*4+eq bne cr0,99f + mflr r12 + .cfi_register lr,r12 + bl __get_datapage@local /* get data page */ + lwz r5, CLOCK_HRTIMER_RES(r3) + mtlr r12 li r3,0 cmpli cr0,r4,0 crclr cr0*4+so beqlr - lis r5,CLOCK_REALTIME_RES@h - ori r5,r5,CLOCK_REALTIME_RES@l stw r3,TSPC32_TV_SEC(r4) stw r5,TSPC32_TV_NSEC(r4) blr diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S index 07bfe33fe874..81757f06bbd7 100644 --- a/arch/powerpc/kernel/vdso64/gettimeofday.S +++ b/arch/powerpc/kernel/vdso64/gettimeofday.S @@ -186,12 +186,15 @@ V_FUNCTION_BEGIN(__kernel_clock_getres) cror cr0*4+eq,cr0*4+eq,cr1*4+eq bne cr0,99f + mflr r12 + .cfi_register lr,r12 + bl V_LOCAL_FUNC(__get_datapage) + lwz r5, CLOCK_HRTIMER_RES(r3) + mtlr r12 li r3,0 cmpldi cr0,r4,0 crclr cr0*4+so beqlr - lis r5,CLOCK_REALTIME_RES@h - ori r5,r5,CLOCK_REALTIME_RES@l std r3,TSPC64_TV_SEC(r4) std r5,TSPC64_TV_NSEC(r4) blr