* inline asm semantics: output constraint width smaller than input
@ 2009-01-23 17:57 Török Edwin
2009-01-23 18:17 ` Ingo Molnar
0 siblings, 1 reply; 22+ messages in thread
From: Török Edwin @ 2009-01-23 17:57 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin; +Cc: Linux Kernel
Hi,
I am trying to build the kernel with LLVM 2.5 prerelease (using
llvm-gcc-4.2 frontend), however I am running into some inline asm
semantics issues, and after some discussion on LLVM bugzilla I would
like to know if you would be accepting patches for this:
http://llvm.org/bugs/show_bug.cgi?id=3373
The problem is when "a" output constraint is used with a variable of
smaller width than the
"0" input constraint.
Here are 2 examples:
int __ret_pu; unsigned long __pu_val;
return ({asm volatile("call __put_user_" "8" : "=a" (__ret_pu) :"0"
(__pu_val), "c"(addr) : "ebx"); __ret_pu;});
unsigned char return_code; /* %al */
unsigned long address; /* %ebx */
unsigned long length; /* %ecx */
unsigned long entry; /* %edx */
unsigned long flags;
__asm__("lcall *(%%edi); cld"
: "=a" (return_code),
"=b" (address),
"=c" (length),
"=d" (entry)
: "0" (service),
"1" (0),
"D" (&bios32_indirect));
There are 2 cases:
1. output is wider than input
2. output is narrower than input
Case 2 seems to occur lots of times on 64-bit (due to sizeof(int) != sizeof(unsigned long)),
and a few times on 32-bit as well.
Would you accept patches that increase the portability of the inline asm statements?
(essentially by adding casts for case 1, and introducing a temporary of correct width for case 2).
Please see:
http://llvm.org/bugs/show_bug.cgi?id=3373#c6
Best regards,
--Edwin
^ permalink raw reply [flat|nested] 22+ messages in thread* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 17:57 inline asm semantics: output constraint width smaller than input Török Edwin @ 2009-01-23 18:17 ` Ingo Molnar 2009-01-23 18:21 ` H. Peter Anvin 2009-01-23 18:27 ` Török Edwin 0 siblings, 2 replies; 22+ messages in thread From: Ingo Molnar @ 2009-01-23 18:17 UTC (permalink / raw) To: Török Edwin; +Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel * Török Edwin <edwintorok@gmail.com> wrote: > Hi, > > I am trying to build the kernel with LLVM 2.5 prerelease (using > llvm-gcc-4.2 frontend), however I am running into some inline asm > semantics issues, and after some discussion on LLVM bugzilla I would > like to know if you would be accepting patches for this: > http://llvm.org/bugs/show_bug.cgi?id=3373 > > The problem is when "a" output constraint is used with a variable of > smaller width than the "0" input constraint. > > Here are 2 examples: > > int __ret_pu; unsigned long __pu_val; > return ({asm volatile("call __put_user_" "8" : "=a" (__ret_pu) :"0" > (__pu_val), "c"(addr) : "ebx"); __ret_pu;}); > > > unsigned char return_code; /* %al */ > unsigned long address; /* %ebx */ > unsigned long length; /* %ecx */ > unsigned long entry; /* %edx */ > unsigned long flags; > __asm__("lcall *(%%edi); cld" > : "=a" (return_code), > "=b" (address), > "=c" (length), > "=d" (entry) > : "0" (service), > "1" (0), > "D" (&bios32_indirect)); > > There are 2 cases: > 1. output is wider than input > 2. output is narrower than input > > Case 2 seems to occur lots of times on 64-bit (due to sizeof(int) != > sizeof(unsigned long)), and a few times on 32-bit as well. > > Would you accept patches that increase the portability of the inline asm > statements? (essentially by adding casts for case 1, and introducing a > temporary of correct width for case 2). i'd not mind it at all if the kernel could be built with other open-source compilers too. Now in this case the patch you suggest might end up hurting the end result so it's not an unconditional 'yes'. But ... how much it actually matters depends on the circumstances. So could you please send a sample patch for some of most common inline assembly statements that are affected by this, so that we can see: 1) how ugly the LLVM workarounds are 2) how they affect the generated kernel image in practice My gut feeling is that it's going to be acceptable with a bit of thinking (we might even do some wrappers to do this cleanly) - but i'd really like to see it before giving you that judgement. Another question: does LLVM always warn about such input/output aliased constraint width mismatch problems if they occur, or does it silently corrupt the resulting instruction sequence? Ingo ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 18:17 ` Ingo Molnar @ 2009-01-23 18:21 ` H. Peter Anvin 2009-01-23 18:27 ` Török Edwin 1 sibling, 0 replies; 22+ messages in thread From: H. Peter Anvin @ 2009-01-23 18:21 UTC (permalink / raw) To: Ingo Molnar; +Cc: Török Edwin, Thomas Gleixner, Linux Kernel Ingo Molnar wrote: > >> Hi, >> >> I am trying to build the kernel with LLVM 2.5 prerelease (using >> llvm-gcc-4.2 frontend), however I am running into some inline asm >> semantics issues, and after some discussion on LLVM bugzilla I would >> like to know if you would be accepting patches for this: >> http://llvm.org/bugs/show_bug.cgi?id=3373 >> >> The problem is when "a" output constraint is used with a variable of >> smaller width than the "0" input constraint. >> IMO, that's an LLVM bug and should be fixed in LLVM while it is in prerelease. That particular constraint is a serious one, and will haunt us for many years if we allow ourselves to go down the path of having to fix that every time it crops up. -hpa ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 18:17 ` Ingo Molnar 2009-01-23 18:21 ` H. Peter Anvin @ 2009-01-23 18:27 ` Török Edwin 2009-01-23 18:30 ` Ingo Molnar 2009-01-24 16:23 ` Török Edwin 1 sibling, 2 replies; 22+ messages in thread From: Török Edwin @ 2009-01-23 18:27 UTC (permalink / raw) To: Ingo Molnar; +Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel On 2009-01-23 20:17, Ingo Molnar wrote: > * Török Edwin <edwintorok@gmail.com> wrote: > > >> Hi, >> >> I am trying to build the kernel with LLVM 2.5 prerelease (using >> llvm-gcc-4.2 frontend), however I am running into some inline asm >> semantics issues, and after some discussion on LLVM bugzilla I would >> like to know if you would be accepting patches for this: >> http://llvm.org/bugs/show_bug.cgi?id=3373 >> >> The problem is when "a" output constraint is used with a variable of >> smaller width than the "0" input constraint. >> >> Here are 2 examples: >> >> int __ret_pu; unsigned long __pu_val; >> return ({asm volatile("call __put_user_" "8" : "=a" (__ret_pu) :"0" >> (__pu_val), "c"(addr) : "ebx"); __ret_pu;}); >> >> >> unsigned char return_code; /* %al */ >> unsigned long address; /* %ebx */ >> unsigned long length; /* %ecx */ >> unsigned long entry; /* %edx */ >> unsigned long flags; >> __asm__("lcall *(%%edi); cld" >> : "=a" (return_code), >> "=b" (address), >> "=c" (length), >> "=d" (entry) >> : "0" (service), >> "1" (0), >> "D" (&bios32_indirect)); >> >> There are 2 cases: >> 1. output is wider than input >> 2. output is narrower than input >> >> Case 2 seems to occur lots of times on 64-bit (due to sizeof(int) != >> sizeof(unsigned long)), and a few times on 32-bit as well. >> >> Would you accept patches that increase the portability of the inline asm >> statements? (essentially by adding casts for case 1, and introducing a >> temporary of correct width for case 2). >> > > i'd not mind it at all if the kernel could be built with other open-source > compilers too. > > Now in this case the patch you suggest might end up hurting the end result > so it's not an unconditional 'yes'. But ... how much it actually matters > depends on the circumstances. > > So could you please send a sample patch for some of most common inline > assembly statements that are affected by this, so that we can see: > > 1) how ugly the LLVM workarounds are > Ok, I will prepare a patch for both cases. > 2) how they affect the generated kernel image in practice > > My gut feeling is that it's going to be acceptable with a bit of thinking > (we might even do some wrappers to do this cleanly) - but i'd really like > to see it before giving you that judgement. > > Another question: does LLVM always warn about such input/output aliased > constraint width mismatch problems if they occur, or does it silently > corrupt the resulting instruction sequence? > With current LLVM it gives an error message in the frontend and refuses to compile those files. With LLVM 2.4 unsatistifiable constraints used to lead to an assertion failure in the backend during code generation, thus also refusing to compile the file (assertions are enabled in a release build). However due to changes in the code generator for LLVM 2.5, mismatching widths for same registers are no longer accepted (I think it was complicated to support that in the code generator), and they are now rejected in the frontend instead of the backend. Having said that, llvm-gcc is not yet able to compile the full Linux kernel on its own [for example the boot code, due to asm(".code16gcc")], but with LLVM 2.4 it was possible to build "arch=UM", and "arch=X86" (by using gcc to build the bootcode). I'd like LLVM 2.5 to be able to build the kernel, so I'll file bugs for llvm/kernel depending on where the problem is. Best regards, --Edwin ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 18:27 ` Török Edwin @ 2009-01-23 18:30 ` Ingo Molnar 2009-01-23 18:52 ` Török Edwin 2009-01-24 16:23 ` Török Edwin 1 sibling, 1 reply; 22+ messages in thread From: Ingo Molnar @ 2009-01-23 18:30 UTC (permalink / raw) To: Török Edwin; +Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel * Török Edwin <edwintorok@gmail.com> wrote: > Having said that, llvm-gcc is not yet able to compile the full Linux > kernel on its own [for example the boot code, due to asm(".code16gcc")], > but with LLVM 2.4 it was possible to build "arch=UM", and "arch=X86" (by > using gcc to build the bootcode). I'd like LLVM 2.5 to be able to build > the kernel, so I'll file bugs for llvm/kernel depending on where the > problem is. Could we get LLVM folks on the Cc: and see how difficult it would be to fix this on the LLVM side? Asm constraints are used all around the place and different input/output types are very common. Ingo ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 18:30 ` Ingo Molnar @ 2009-01-23 18:52 ` Török Edwin 2009-01-23 20:42 ` Török Edwin 0 siblings, 1 reply; 22+ messages in thread From: Török Edwin @ 2009-01-23 18:52 UTC (permalink / raw) To: Ingo Molnar Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel, LLVM Developers Mailing List On 2009-01-23 20:30, Ingo Molnar wrote: > * Török Edwin <edwintorok@gmail.com> wrote: > > >> Having said that, llvm-gcc is not yet able to compile the full Linux >> kernel on its own [for example the boot code, due to asm(".code16gcc")], >> but with LLVM 2.4 it was possible to build "arch=UM", and "arch=X86" (by >> using gcc to build the bootcode). I'd like LLVM 2.5 to be able to build >> the kernel, so I'll file bugs for llvm/kernel depending on where the >> problem is. >> > > Could we get LLVM folks on the Cc: and see how difficult it would be to > fix this on the LLVM side? Asm constraints are used all around the place > and different input/output types are very common. I've added LLVMDev to Cc. Your first post to the list may take a little longer to reach it (first post is moderated by listmaster, no subscription required). [For those who missed the initial conversation, see: http://llvm.org/bugs/show_bug.cgi?id=3373#c9] Best regards, --Edwin ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 18:52 ` Török Edwin @ 2009-01-23 20:42 ` Török Edwin 0 siblings, 0 replies; 22+ messages in thread From: Török Edwin @ 2009-01-23 20:42 UTC (permalink / raw) To: Ingo Molnar Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel, LLVM Developers Mailing List On 2009-01-23 20:52, Török Edwin wrote: > On 2009-01-23 20:30, Ingo Molnar wrote: > >> * Török Edwin <edwintorok@gmail.com> wrote: >> >> >> >>> Having said that, llvm-gcc is not yet able to compile the full Linux >>> kernel on its own [for example the boot code, due to asm(".code16gcc")], >>> but with LLVM 2.4 it was possible to build "arch=UM", and "arch=X86" (by >>> using gcc to build the bootcode). I'd like LLVM 2.5 to be able to build >>> the kernel, so I'll file bugs for llvm/kernel depending on where the >>> problem is. >>> >>> >> Could we get LLVM folks on the Cc: and see how difficult it would be to >> fix this on the LLVM side? Asm constraints are used all around the place >> and different input/output types are very common. >> > > Hi Ingo, Could you describe what are the semantics you need for inline asm constraints in the kernel? GCC doesn't document all the corner cases, and defining inline asm = "whatever gcc accepts" is not very useful for LLVM. So far we've encountered the problem with input/output operand tied to same register, but having different widths: - output wider than input, both integers: do you need this case? - output narrower than input, both integers: this is the common case, right? - can it also happen that input is pointer, output is integer of different width? - .. any other mismatches? Could you also describe why put_user/the example from pcbios needs the different widths? Best regards, --Edwin ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-23 18:27 ` Török Edwin 2009-01-23 18:30 ` Ingo Molnar @ 2009-01-24 16:23 ` Török Edwin 2009-01-24 17:27 ` Ingo Molnar 2009-01-24 20:07 ` Andreas Schwab 1 sibling, 2 replies; 22+ messages in thread From: Török Edwin @ 2009-01-24 16:23 UTC (permalink / raw) To: Ingo Molnar Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel, LLVM Developers Mailing List [-- Attachment #1: Type: text/plain, Size: 4164 bytes --] On 2009-01-23 20:27, Török Edwin wrote: >>> >>> >> i'd not mind it at all if the kernel could be built with other open-source >> compilers too. >> >> Now in this case the patch you suggest might end up hurting the end result >> so it's not an unconditional 'yes'. But ... how much it actually matters >> depends on the circumstances. >> >> So could you please send a sample patch for some of most common inline >> assembly statements that are affected by this, so that we can see: >> >> 1) how ugly the LLVM workarounds are >> >> > > Ok, I will prepare a patch for both cases. > > >> 2) how they affect the generated kernel image in practice >> >> My gut feeling is that it's going to be acceptable with a bit of thinking >> (we might even do some wrappers to do this cleanly) - but i'd really like >> to see it before giving you that judgement. >> The below patch is to build the kernel for x86_64, with the attached .config, using llvm-gcc (trunk, with patch from http://llvm.org/bugs/show_bug.cgi?id=2989#c2). The .config has KVM turned off, because I didn't know how to change x86_emulate.c so that LLVM builds it (http://llvm.org/bugs/show_bug.cgi?id=3373#c10) For 32-bit some more changes are required. The resulting kernel image are of the same size $ ls -l vmlinux.patched -rwxr-xr-x 1 edwin edwin 11277206 2009-01-24 17:58 vmlinux.patched $ ls -l vmlinux -rwxr-xr-x 1 edwin edwin 11277206 2009-01-24 18:01 vmlinux They aren't identical though, a disassembly shows that the address of most of functions changed, also some register assignments changed (r14 instead of r15, and so on). Are these changes correct, and are they acceptable? Best regards, --Edwin --- arch/x86/include/asm/uaccess.h | 10 ++++++---- arch/x86/lib/delay.c | 2 +- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 69d2757..28280de 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -154,7 +154,7 @@ extern int __get_user_bad(void); #define get_user(x, ptr) \ ({ \ - int __ret_gu; \ + unsigned long __ret_gu; \ unsigned long __val_gu; \ __chk_user_ptr(ptr); \ might_fault(); \ @@ -176,7 +176,7 @@ extern int __get_user_bad(void); break; \ } \ (x) = (__typeof__(*(ptr)))__val_gu; \ - __ret_gu; \ + (int)__ret_gu; \ }) #define __put_user_x(size, x, ptr, __ret_pu) \ @@ -239,11 +239,13 @@ extern void __put_user_8(void); */ #define put_user(x, ptr) \ ({ \ - int __ret_pu; \ + __typeof__(*(ptr)) __ret_pu; \ __typeof__(*(ptr)) __pu_val; \ __chk_user_ptr(ptr); \ might_fault(); \ __pu_val = x; \ + /* return value is 0 or -EFAULT, both fit in 1 byte, and \ + * are sign-extendable to int */ \ switch (sizeof(*(ptr))) { \ case 1: \ __put_user_x(1, __pu_val, ptr, __ret_pu); \ @@ -261,7 +263,7 @@ extern void __put_user_8(void); __put_user_x(X, __pu_val, ptr, __ret_pu); \ break; \ } \ - __ret_pu; \ + (int)__ret_pu; \ }) #define __put_user_size(x, ptr, size, retval, errret) \ diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c index f456860..12d27f8 100644 --- a/arch/x86/lib/delay.c +++ b/arch/x86/lib/delay.c @@ -112,7 +112,7 @@ EXPORT_SYMBOL(__delay); inline void __const_udelay(unsigned long xloops) { - int d0; + unsigned long d0; xloops *= 4; asm("mull %%edx" -- 1.5.6.5 [-- Attachment #2: .config-llvm-64 --] [-- Type: text/plain, Size: 53803 bytes --] # 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CONFIG_DEFAULT_DEADLINE is not set CONFIG_DEFAULT_CFQ=y # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="cfq" # CONFIG_FREEZER is not set # # Processor type and features # CONFIG_TICK_ONESHOT=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_GENERIC_CLOCKEVENTS_BUILD=y # CONFIG_SMP is not set # CONFIG_SPARSE_IRQ is not set # CONFIG_X86_MPPARSE is not set CONFIG_X86_PC=y # CONFIG_X86_ELAN is not set # CONFIG_X86_VOYAGER is not set # CONFIG_X86_GENERICARCH is not set # CONFIG_X86_VSMP is not set # CONFIG_X86_UV is not set CONFIG_SCHED_OMIT_FRAME_POINTER=y # CONFIG_PARAVIRT_GUEST is not set # CONFIG_MEMTEST is not set # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set # CONFIG_M586TSC is not set # CONFIG_M586MMX is not set # CONFIG_M686 is not set # CONFIG_MPENTIUMII is not set # CONFIG_MPENTIUMIII is not set # CONFIG_MPENTIUMM is not set # CONFIG_MPENTIUM4 is not set # CONFIG_MK6 is not set # CONFIG_MK7 is not set # CONFIG_MK8 is not set # CONFIG_MCRUSOE is not set # CONFIG_MEFFICEON is not set # CONFIG_MWINCHIPC6 is not set # CONFIG_MWINCHIP3D is not set # CONFIG_MGEODEGX1 is not set # CONFIG_MGEODE_LX is not set # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set # CONFIG_MVIAC7 is not set # CONFIG_MPSC is not set CONFIG_MCORE2=y # CONFIG_GENERIC_CPU is not set CONFIG_X86_CPU=y CONFIG_X86_L1_CACHE_BYTES=64 CONFIG_X86_INTERNODE_CACHE_BYTES=64 CONFIG_X86_CMPXCHG=y CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y CONFIG_X86_P6_NOP=y CONFIG_X86_TSC=y CONFIG_X86_CMPXCHG64=y CONFIG_X86_CMOV=y CONFIG_X86_MINIMUM_CPU_FAMILY=64 CONFIG_X86_DEBUGCTLMSR=y CONFIG_CPU_SUP_INTEL=y CONFIG_CPU_SUP_AMD=y CONFIG_CPU_SUP_CENTAUR_64=y CONFIG_X86_DS=y CONFIG_X86_PTRACE_BTS=y CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_DMI=y CONFIG_GART_IOMMU=y # CONFIG_CALGARY_IOMMU is not set # CONFIG_AMD_IOMMU is not set CONFIG_SWIOTLB=y CONFIG_IOMMU_HELPER=y # CONFIG_IOMMU_API is not set CONFIG_NR_CPUS=1 # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y # CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set CONFIG_X86_MCE=y CONFIG_X86_MCE_INTEL=y CONFIG_X86_MCE_AMD=y # CONFIG_I8K is not set CONFIG_MICROCODE=m CONFIG_MICROCODE_INTEL=y # CONFIG_MICROCODE_AMD is not set CONFIG_MICROCODE_OLD_INTERFACE=y CONFIG_X86_MSR=m CONFIG_X86_CPUID=m CONFIG_ARCH_PHYS_ADDR_T_64BIT=y CONFIG_DIRECT_GBPAGES=y CONFIG_ARCH_SPARSEMEM_DEFAULT=y CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 CONFIG_SELECT_MEMORY_MODEL=y # CONFIG_FLATMEM_MANUAL is not set # CONFIG_DISCONTIGMEM_MANUAL is not set CONFIG_SPARSEMEM_MANUAL=y CONFIG_SPARSEMEM=y CONFIG_HAVE_MEMORY_PRESENT=y CONFIG_SPARSEMEM_EXTREME=y CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y CONFIG_SPARSEMEM_VMEMMAP=y # CONFIG_MEMORY_HOTPLUG is not set CONFIG_PAGEFLAGS_EXTENDED=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y CONFIG_UNEVICTABLE_LRU=y # CONFIG_X86_CHECK_BIOS_CORRUPTION is not set CONFIG_X86_RESERVE_LOW_64K=y CONFIG_MTRR=y # CONFIG_MTRR_SANITIZER is not set CONFIG_X86_PAT=y # CONFIG_EFI is not set CONFIG_SECCOMP=y # CONFIG_CC_STACKPROTECTOR is not set # CONFIG_HZ_100 is not set CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 CONFIG_SCHED_HRTICK=y CONFIG_KEXEC=y # CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x200000 # CONFIG_RELOCATABLE is not set CONFIG_PHYSICAL_ALIGN=0x200000 CONFIG_COMPAT_VDSO=y # CONFIG_CMDLINE_BOOL is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y # # Power management and ACPI options # CONFIG_PM=y # CONFIG_PM_DEBUG is not set # CONFIG_SUSPEND is not set # CONFIG_HIBERNATION is not set CONFIG_ACPI=y CONFIG_ACPI_PROCFS=y # CONFIG_ACPI_PROCFS_POWER is not set CONFIG_ACPI_SYSFS_POWER=y CONFIG_ACPI_PROC_EVENT=y CONFIG_ACPI_AC=m CONFIG_ACPI_BATTERY=m CONFIG_ACPI_BUTTON=m CONFIG_ACPI_FAN=m CONFIG_ACPI_DOCK=y CONFIG_ACPI_PROCESSOR=m CONFIG_ACPI_THERMAL=m # CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set # CONFIG_ACPI_PCI_SLOT is not set CONFIG_ACPI_SYSTEM=y CONFIG_X86_PM_TIMER=y CONFIG_ACPI_CONTAINER=m CONFIG_ACPI_SBS=m # # CPU Frequency scaling # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=m # CONFIG_CPU_FREQ_DEBUG is not set CONFIG_CPU_FREQ_STAT=m # CONFIG_CPU_FREQ_STAT_DETAILS is not set CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=m CONFIG_CPU_FREQ_GOV_USERSPACE=m CONFIG_CPU_FREQ_GOV_ONDEMAND=m CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m # # CPUFreq processor drivers # CONFIG_X86_ACPI_CPUFREQ=m CONFIG_X86_POWERNOW_K8=m CONFIG_X86_POWERNOW_K8_ACPI=y CONFIG_X86_SPEEDSTEP_CENTRINO=m # CONFIG_X86_P4_CLOCKMOD is not set # # shared options # # CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set # CONFIG_X86_SPEEDSTEP_LIB is not set CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y CONFIG_CPU_IDLE_GOV_MENU=y # # Memory power savings # # CONFIG_I7300_IDLE is not set # # Bus options (PCI etc.) # CONFIG_PCI=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_PCI_DOMAINS=y # CONFIG_DMAR is not set # CONFIG_INTR_REMAP is not set CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y CONFIG_PCI_MSI=y CONFIG_PCI_LEGACY=y # CONFIG_PCI_DEBUG is not set # CONFIG_PCI_STUB is not set CONFIG_HT_IRQ=y CONFIG_ISA_DMA_API=y CONFIG_K8_NB=y # CONFIG_PCCARD is not set # CONFIG_HOTPLUG_PCI is not set # # Executable file formats / Emulations # CONFIG_BINFMT_ELF=y CONFIG_COMPAT_BINFMT_ELF=y # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m CONFIG_IA32_EMULATION=y CONFIG_IA32_AOUT=m CONFIG_COMPAT=y CONFIG_COMPAT_FOR_U64_ALIGNMENT=y CONFIG_SYSVIPC_COMPAT=y CONFIG_NET=y # # Networking options # # CONFIG_NET_NS is not set CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_UNIX=y CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set # CONFIG_XFRM_MIGRATE is not set # CONFIG_XFRM_STATISTICS is not set CONFIG_XFRM_IPCOMP=m # CONFIG_NET_KEY is not set CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_ADVANCED_ROUTER=y CONFIG_ASK_IP_FIB_HASH=y # CONFIG_IP_FIB_TRIE is not set CONFIG_IP_FIB_HASH=y CONFIG_IP_MULTIPLE_TABLES=y CONFIG_IP_ROUTE_MULTIPATH=y CONFIG_IP_ROUTE_VERBOSE=y # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set CONFIG_IP_MROUTE=y CONFIG_IP_PIMSM_V1=y CONFIG_IP_PIMSM_V2=y # CONFIG_ARPD is not set CONFIG_SYN_COOKIES=y # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set # CONFIG_INET_XFRM_TUNNEL is not set CONFIG_INET_TUNNEL=m # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set # CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set CONFIG_TCP_CONG_ADVANCED=y CONFIG_TCP_CONG_BIC=m CONFIG_TCP_CONG_CUBIC=y CONFIG_TCP_CONG_WESTWOOD=m CONFIG_TCP_CONG_HTCP=m CONFIG_TCP_CONG_HSTCP=m CONFIG_TCP_CONG_HYBLA=m CONFIG_TCP_CONG_VEGAS=m CONFIG_TCP_CONG_SCALABLE=m CONFIG_TCP_CONG_LP=m CONFIG_TCP_CONG_VENO=m CONFIG_TCP_CONG_YEAH=m CONFIG_TCP_CONG_ILLINOIS=m # CONFIG_DEFAULT_BIC is not set CONFIG_DEFAULT_CUBIC=y # CONFIG_DEFAULT_HTCP is not set # CONFIG_DEFAULT_VEGAS is not set # CONFIG_DEFAULT_WESTWOOD is not set # CONFIG_DEFAULT_RENO is not set CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_TCP_MD5SIG=y CONFIG_IPV6=m CONFIG_IPV6_PRIVACY=y CONFIG_IPV6_ROUTER_PREF=y CONFIG_IPV6_ROUTE_INFO=y CONFIG_IPV6_OPTIMISTIC_DAD=y CONFIG_INET6_AH=m CONFIG_INET6_ESP=m CONFIG_INET6_IPCOMP=m CONFIG_IPV6_MIP6=m CONFIG_INET6_XFRM_TUNNEL=m CONFIG_INET6_TUNNEL=m CONFIG_INET6_XFRM_MODE_TRANSPORT=m CONFIG_INET6_XFRM_MODE_TUNNEL=m CONFIG_INET6_XFRM_MODE_BEET=m CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m CONFIG_IPV6_SIT=m CONFIG_IPV6_NDISC_NODETYPE=y CONFIG_IPV6_TUNNEL=m CONFIG_IPV6_MULTIPLE_TABLES=y CONFIG_IPV6_SUBTREES=y CONFIG_IPV6_MROUTE=y CONFIG_IPV6_PIMSM_V2=y # CONFIG_NETLABEL is not set CONFIG_NETWORK_SECMARK=y CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set CONFIG_NETFILTER_ADVANCED=y # # Core Netfilter Configuration # CONFIG_NETFILTER_NETLINK=m CONFIG_NETFILTER_NETLINK_QUEUE=m CONFIG_NETFILTER_NETLINK_LOG=m CONFIG_NF_CONNTRACK=m CONFIG_NF_CT_ACCT=y CONFIG_NF_CONNTRACK_MARK=y CONFIG_NF_CONNTRACK_SECMARK=y CONFIG_NF_CONNTRACK_EVENTS=y CONFIG_NF_CT_PROTO_DCCP=m CONFIG_NF_CT_PROTO_GRE=m CONFIG_NF_CT_PROTO_SCTP=m CONFIG_NF_CT_PROTO_UDPLITE=m CONFIG_NF_CONNTRACK_AMANDA=m CONFIG_NF_CONNTRACK_FTP=m CONFIG_NF_CONNTRACK_H323=m CONFIG_NF_CONNTRACK_IRC=m CONFIG_NF_CONNTRACK_NETBIOS_NS=m CONFIG_NF_CONNTRACK_PPTP=m CONFIG_NF_CONNTRACK_SANE=m CONFIG_NF_CONNTRACK_SIP=m CONFIG_NF_CONNTRACK_TFTP=m CONFIG_NF_CT_NETLINK=m # CONFIG_NETFILTER_TPROXY is not set CONFIG_NETFILTER_XTABLES=m CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m CONFIG_NETFILTER_XT_TARGET_CONNMARK=m CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m CONFIG_NETFILTER_XT_TARGET_DSCP=m CONFIG_NETFILTER_XT_TARGET_MARK=m CONFIG_NETFILTER_XT_TARGET_NFLOG=m CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m CONFIG_NETFILTER_XT_TARGET_NOTRACK=m CONFIG_NETFILTER_XT_TARGET_RATEEST=m CONFIG_NETFILTER_XT_TARGET_TRACE=m CONFIG_NETFILTER_XT_TARGET_SECMARK=m CONFIG_NETFILTER_XT_TARGET_TCPMSS=m CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m CONFIG_NETFILTER_XT_MATCH_COMMENT=m CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m CONFIG_NETFILTER_XT_MATCH_CONNMARK=m CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m CONFIG_NETFILTER_XT_MATCH_DCCP=m CONFIG_NETFILTER_XT_MATCH_DSCP=m CONFIG_NETFILTER_XT_MATCH_ESP=m CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m CONFIG_NETFILTER_XT_MATCH_HELPER=m CONFIG_NETFILTER_XT_MATCH_IPRANGE=m CONFIG_NETFILTER_XT_MATCH_LENGTH=m CONFIG_NETFILTER_XT_MATCH_LIMIT=m CONFIG_NETFILTER_XT_MATCH_MAC=m CONFIG_NETFILTER_XT_MATCH_MARK=m CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m CONFIG_NETFILTER_XT_MATCH_REALM=m # CONFIG_NETFILTER_XT_MATCH_RECENT is not set CONFIG_NETFILTER_XT_MATCH_SCTP=m CONFIG_NETFILTER_XT_MATCH_STATE=m CONFIG_NETFILTER_XT_MATCH_STATISTIC=m CONFIG_NETFILTER_XT_MATCH_STRING=m CONFIG_NETFILTER_XT_MATCH_TCPMSS=m CONFIG_NETFILTER_XT_MATCH_TIME=m CONFIG_NETFILTER_XT_MATCH_U32=m # CONFIG_IP_VS is not set # # IP: Netfilter Configuration # CONFIG_NF_DEFRAG_IPV4=m CONFIG_NF_CONNTRACK_IPV4=m CONFIG_NF_CONNTRACK_PROC_COMPAT=y CONFIG_IP_NF_QUEUE=m CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_MATCH_ADDRTYPE=m CONFIG_IP_NF_MATCH_AH=m CONFIG_IP_NF_MATCH_ECN=m CONFIG_IP_NF_MATCH_TTL=m CONFIG_IP_NF_FILTER=m CONFIG_IP_NF_TARGET_REJECT=m CONFIG_IP_NF_TARGET_LOG=m CONFIG_IP_NF_TARGET_ULOG=m CONFIG_NF_NAT=m CONFIG_NF_NAT_NEEDED=y CONFIG_IP_NF_TARGET_MASQUERADE=m CONFIG_IP_NF_TARGET_NETMAP=m CONFIG_IP_NF_TARGET_REDIRECT=m CONFIG_NF_NAT_SNMP_BASIC=m CONFIG_NF_NAT_PROTO_DCCP=m CONFIG_NF_NAT_PROTO_GRE=m CONFIG_NF_NAT_PROTO_UDPLITE=m CONFIG_NF_NAT_PROTO_SCTP=m CONFIG_NF_NAT_FTP=m CONFIG_NF_NAT_IRC=m CONFIG_NF_NAT_TFTP=m CONFIG_NF_NAT_AMANDA=m CONFIG_NF_NAT_PPTP=m CONFIG_NF_NAT_H323=m CONFIG_NF_NAT_SIP=m CONFIG_IP_NF_MANGLE=m CONFIG_IP_NF_TARGET_CLUSTERIP=m CONFIG_IP_NF_TARGET_ECN=m CONFIG_IP_NF_TARGET_TTL=m CONFIG_IP_NF_RAW=m # CONFIG_IP_NF_SECURITY is not set CONFIG_IP_NF_ARPTABLES=m CONFIG_IP_NF_ARPFILTER=m CONFIG_IP_NF_ARP_MANGLE=m # # IPv6: Netfilter Configuration # CONFIG_NF_CONNTRACK_IPV6=m CONFIG_IP6_NF_QUEUE=m CONFIG_IP6_NF_IPTABLES=m CONFIG_IP6_NF_MATCH_AH=m CONFIG_IP6_NF_MATCH_EUI64=m CONFIG_IP6_NF_MATCH_FRAG=m CONFIG_IP6_NF_MATCH_OPTS=m CONFIG_IP6_NF_MATCH_HL=m CONFIG_IP6_NF_MATCH_IPV6HEADER=m CONFIG_IP6_NF_MATCH_MH=m CONFIG_IP6_NF_MATCH_RT=m CONFIG_IP6_NF_TARGET_LOG=m CONFIG_IP6_NF_FILTER=m CONFIG_IP6_NF_TARGET_REJECT=m CONFIG_IP6_NF_MANGLE=m CONFIG_IP6_NF_TARGET_HL=m CONFIG_IP6_NF_RAW=m # CONFIG_IP6_NF_SECURITY is not set # CONFIG_IP_DCCP is not set CONFIG_IP_SCTP=m # CONFIG_SCTP_DBG_MSG is not set # CONFIG_SCTP_DBG_OBJCNT is not set # CONFIG_SCTP_HMAC_NONE is not set # CONFIG_SCTP_HMAC_SHA1 is not set CONFIG_SCTP_HMAC_MD5=y # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set # CONFIG_NET_DSA is not set # CONFIG_VLAN_8021Q is not set # CONFIG_DECNET is not set # CONFIG_LLC2 is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_SCHED is not set CONFIG_NET_CLS_ROUTE=y # CONFIG_DCB is not set # # Network testing # # CONFIG_NET_PKTGEN is not set # CONFIG_NET_TCPPROBE is not set # CONFIG_HAMRADIO is not set # CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set CONFIG_AF_RXRPC=m # CONFIG_AF_RXRPC_DEBUG is not set # CONFIG_RXKAD is not set # CONFIG_PHONET is not set CONFIG_FIB_RULES=y # CONFIG_WIRELESS is not set # CONFIG_WIMAX is not set CONFIG_RFKILL=m CONFIG_RFKILL_INPUT=m CONFIG_RFKILL_LEDS=y # # Device Drivers # # # Generic Driver Options # CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y CONFIG_FIRMWARE_IN_KERNEL=y CONFIG_EXTRA_FIRMWARE="" # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set # CONFIG_PARPORT is not set CONFIG_PNP=y CONFIG_PNP_DEBUG_MESSAGES=y # # Protocols # CONFIG_PNPACPI=y CONFIG_BLK_DEV=y CONFIG_BLK_DEV_FD=m CONFIG_BLK_CPQ_DA=m # CONFIG_BLK_CPQ_CISS_DA is not set CONFIG_BLK_DEV_DAC960=m CONFIG_BLK_DEV_UMEM=m # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_CRYPTOLOOP=m CONFIG_BLK_DEV_NBD=m CONFIG_BLK_DEV_SX8=m # CONFIG_BLK_DEV_UB is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=65536 # CONFIG_BLK_DEV_XIP is not set CONFIG_CDROM_PKTCDVD=m CONFIG_CDROM_PKTCDVD_BUFFERS=8 # CONFIG_CDROM_PKTCDVD_WCACHE is not set CONFIG_ATA_OVER_ETH=m # CONFIG_BLK_DEV_HD is not set CONFIG_MISC_DEVICES=y CONFIG_IBM_ASM=m CONFIG_PHANTOM=m CONFIG_EEPROM_93CX6=m CONFIG_SGI_IOC4=m CONFIG_TIFM_CORE=m CONFIG_TIFM_7XX1=m # CONFIG_ICS932S401 is not set CONFIG_ENCLOSURE_SERVICES=m CONFIG_HP_ILO=m # CONFIG_C2PORT is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y # # Please see Documentation/ide/ide.txt for help/info on IDE drives # CONFIG_IDE_ATAPI=y # CONFIG_BLK_DEV_IDE_SATA is not set CONFIG_IDE_GD=y CONFIG_IDE_GD_ATA=y # CONFIG_IDE_GD_ATAPI is not set CONFIG_BLK_DEV_IDECD=m CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y # CONFIG_BLK_DEV_IDETAPE is not set CONFIG_BLK_DEV_IDEACPI=y # CONFIG_IDE_TASK_IOCTL is not set CONFIG_IDE_PROC_FS=y # # IDE chipset support/bugfixes # # CONFIG_IDE_GENERIC is not set # CONFIG_BLK_DEV_PLATFORM is not set # CONFIG_BLK_DEV_CMD640 is not set # CONFIG_BLK_DEV_IDEPNP is not set # # PCI IDE chipsets support # # CONFIG_BLK_DEV_GENERIC is not set # CONFIG_BLK_DEV_OPTI621 is not set # CONFIG_BLK_DEV_RZ1000 is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set # CONFIG_BLK_DEV_AMD74XX is not set # CONFIG_BLK_DEV_ATIIXP is not set # CONFIG_BLK_DEV_CMD64X is not set # CONFIG_BLK_DEV_TRIFLEX is not set # CONFIG_BLK_DEV_CS5520 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT366 is not set # CONFIG_BLK_DEV_JMICRON is not set # CONFIG_BLK_DEV_SC1200 is not set # CONFIG_BLK_DEV_PIIX is not set # CONFIG_BLK_DEV_IT8172 is not set # CONFIG_BLK_DEV_IT8213 is not set # CONFIG_BLK_DEV_IT821X is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set # CONFIG_BLK_DEV_PDC202XX_NEW is not set # CONFIG_BLK_DEV_SVWKS is not set # CONFIG_BLK_DEV_SIIMAGE is not set # CONFIG_BLK_DEV_SIS5513 is not set # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set # CONFIG_BLK_DEV_VIA82CXXX is not set # CONFIG_BLK_DEV_TC86C001 is not set # CONFIG_BLK_DEV_IDEDMA is not set # # SCSI device support # CONFIG_RAID_ATTRS=y CONFIG_SCSI=y CONFIG_SCSI_DMA=y CONFIG_SCSI_TGT=m # CONFIG_SCSI_NETLINK is not set # CONFIG_SCSI_PROC_FS is not set # # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=y # CONFIG_CHR_DEV_ST is not set # CONFIG_CHR_DEV_OSST is not set CONFIG_BLK_DEV_SR=m CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_CHR_DEV_SCH=m CONFIG_SCSI_ENCLOSURE=m # # Some SCSI devices (e.g. CD jukebox) support multiple LUNs # CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y CONFIG_SCSI_SCAN_ASYNC=y CONFIG_SCSI_WAIT_SCAN=m # # SCSI Transports # # CONFIG_SCSI_SPI_ATTRS is not set # CONFIG_SCSI_FC_ATTRS is not set # CONFIG_SCSI_ISCSI_ATTRS is not set # CONFIG_SCSI_SAS_LIBSAS is not set # CONFIG_SCSI_SRP_ATTRS is not set # CONFIG_SCSI_LOWLEVEL is not set # CONFIG_SCSI_DH is not set CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set CONFIG_ATA_ACPI=y CONFIG_SATA_PMP=y CONFIG_SATA_AHCI=y CONFIG_SATA_SIL24=y CONFIG_ATA_SFF=y # CONFIG_SATA_SVW is not set CONFIG_ATA_PIIX=y # CONFIG_SATA_MV is not set # CONFIG_SATA_NV is not set # CONFIG_PDC_ADMA is not set # CONFIG_SATA_QSTOR is not set # CONFIG_SATA_PROMISE is not set # CONFIG_SATA_SX4 is not set CONFIG_SATA_SIL=y # CONFIG_SATA_SIS is not set # CONFIG_SATA_ULI is not set # CONFIG_SATA_VIA is not set # CONFIG_SATA_VITESSE is not set # CONFIG_SATA_INIC162X is not set # CONFIG_PATA_ACPI is not set # CONFIG_PATA_ALI is not set # CONFIG_PATA_AMD is not set # CONFIG_PATA_ARTOP is not set # CONFIG_PATA_ATIIXP is not set # CONFIG_PATA_CMD640_PCI is not set # CONFIG_PATA_CMD64X is not set # CONFIG_PATA_CS5520 is not set # CONFIG_PATA_CS5530 is not set # CONFIG_PATA_CYPRESS is not set # CONFIG_PATA_EFAR is not set CONFIG_ATA_GENERIC=m # CONFIG_PATA_HPT366 is not set # CONFIG_PATA_HPT37X is not set # CONFIG_PATA_HPT3X2N is not set # CONFIG_PATA_HPT3X3 is not set # CONFIG_PATA_IT821X is not set # CONFIG_PATA_IT8213 is not set CONFIG_PATA_JMICRON=m # CONFIG_PATA_TRIFLEX is not set # CONFIG_PATA_MARVELL is not set # CONFIG_PATA_MPIIX is not set # CONFIG_PATA_OLDPIIX is not set # CONFIG_PATA_NETCELL is not set # CONFIG_PATA_NINJA32 is not set # CONFIG_PATA_NS87410 is not set # CONFIG_PATA_NS87415 is not set # CONFIG_PATA_OPTI is not set # CONFIG_PATA_OPTIDMA is not set # CONFIG_PATA_PDC_OLD is not set # CONFIG_PATA_RADISYS is not set # CONFIG_PATA_RZ1000 is not set # CONFIG_PATA_SC1200 is not set # CONFIG_PATA_SERVERWORKS is not set # CONFIG_PATA_PDC2027X is not set # CONFIG_PATA_SIL680 is not set # CONFIG_PATA_SIS is not set # CONFIG_PATA_VIA is not set # CONFIG_PATA_WINBOND is not set CONFIG_PATA_SCH=m CONFIG_MD=y CONFIG_BLK_DEV_MD=y CONFIG_MD_AUTODETECT=y CONFIG_MD_LINEAR=y CONFIG_MD_RAID0=y CONFIG_MD_RAID1=y CONFIG_MD_RAID10=y # CONFIG_MD_RAID456 is not set CONFIG_MD_MULTIPATH=y # CONFIG_MD_FAULTY is not set CONFIG_BLK_DEV_DM=y # CONFIG_DM_DEBUG is not set # CONFIG_DM_CRYPT is not set CONFIG_DM_SNAPSHOT=y CONFIG_DM_MIRROR=y CONFIG_DM_ZERO=y # CONFIG_DM_MULTIPATH is not set # CONFIG_DM_DELAY is not set CONFIG_DM_UEVENT=y # CONFIG_FUSION is not set # # IEEE 1394 (FireWire) support # # # Enable only one of the two stacks, unless you know what you are doing # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set CONFIG_TUN=y # CONFIG_VETH is not set # CONFIG_NET_SB1000 is not set # CONFIG_ARCNET is not set CONFIG_PHYLIB=y # # MII PHY device drivers # # CONFIG_MARVELL_PHY is not set # CONFIG_DAVICOM_PHY is not set # CONFIG_QSEMI_PHY is not set # CONFIG_LXT_PHY is not set # CONFIG_CICADA_PHY is not set # CONFIG_VITESSE_PHY is not set # CONFIG_SMSC_PHY is not set # CONFIG_BROADCOM_PHY is not set # CONFIG_ICPLUS_PHY is not set CONFIG_REALTEK_PHY=y # CONFIG_NATIONAL_PHY is not set # CONFIG_STE10XP is not set # CONFIG_LSI_ET1011C_PHY is not set # CONFIG_FIXED_PHY is not set # CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y CONFIG_MII=y # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set # CONFIG_IBM_NEW_EMAC_ZMII is not set # CONFIG_IBM_NEW_EMAC_RGMII is not set # CONFIG_IBM_NEW_EMAC_TAH is not set # CONFIG_IBM_NEW_EMAC_EMAC4 is not set # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set # CONFIG_DL2K is not set # CONFIG_E1000 is not set # CONFIG_E1000E is not set # CONFIG_IP1000 is not set # CONFIG_IGB is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set CONFIG_R8169=m # CONFIG_SIS190 is not set # CONFIG_SKGE is not set # CONFIG_SKY2 is not set # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set # CONFIG_JME is not set # CONFIG_NETDEV_10000 is not set # CONFIG_TR is not set # # Wireless LAN # # CONFIG_WLAN_PRE80211 is not set # CONFIG_WLAN_80211 is not set # CONFIG_IWLWIFI_LEDS is not set # # Enable WiMAX (Networking options) to see the WiMAX drivers # # # USB Network Adapters # # CONFIG_USB_CATC is not set # CONFIG_USB_KAWETH is not set # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set # CONFIG_USB_HSO is not set # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_NET_FC is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set # CONFIG_ISDN is not set # CONFIG_PHONE is not set # # Input device support # CONFIG_INPUT=y CONFIG_INPUT_FF_MEMLESS=m CONFIG_INPUT_POLLDEV=m # # Userland interfaces # CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_PSAUX=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 CONFIG_INPUT_JOYDEV=m CONFIG_INPUT_EVDEV=m # CONFIG_INPUT_EVBUG is not set # # Input Device Drivers # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y CONFIG_KEYBOARD_SUNKBD=m CONFIG_KEYBOARD_LKKBD=m CONFIG_KEYBOARD_XTKBD=m CONFIG_KEYBOARD_NEWTON=m CONFIG_KEYBOARD_STOWAWAY=m CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=m CONFIG_MOUSE_PS2_ALPS=y CONFIG_MOUSE_PS2_LOGIPS2PP=y CONFIG_MOUSE_PS2_SYNAPTICS=y CONFIG_MOUSE_PS2_LIFEBOOK=y CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_PS2_ELANTECH is not set # CONFIG_MOUSE_PS2_TOUCHKIT is not set CONFIG_MOUSE_SERIAL=m # CONFIG_MOUSE_APPLETOUCH is not set # CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_VSXXXAA is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set # # Hardware I/O ports # CONFIG_SERIO=y CONFIG_SERIO_I8042=y CONFIG_SERIO_SERPORT=m # CONFIG_SERIO_CT82C710 is not set CONFIG_SERIO_PCIPS2=m CONFIG_SERIO_LIBPS2=y CONFIG_SERIO_RAW=m # CONFIG_GAMEPORT is not set # # Character devices # CONFIG_VT=y CONFIG_CONSOLE_TRANSLATIONS=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y # CONFIG_VT_HW_CONSOLE_BINDING is not set CONFIG_DEVKMEM=y # CONFIG_SERIAL_NONSTANDARD is not set # CONFIG_NOZOMI is not set # # Serial drivers # CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_FIX_EARLYCON_MEM=y CONFIG_SERIAL_8250_PCI=y CONFIG_SERIAL_8250_PNP=y CONFIG_SERIAL_8250_NR_UARTS=32 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_SHARE_IRQ=y # CONFIG_SERIAL_8250_DETECT_IRQ is not set CONFIG_SERIAL_8250_RSA=y # # Non-8250 serial port support # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set # CONFIG_LEGACY_PTYS is not set # CONFIG_IPMI_HANDLER is not set CONFIG_HW_RANDOM=m # CONFIG_HW_RANDOM_INTEL is not set # CONFIG_HW_RANDOM_AMD is not set CONFIG_NVRAM=m # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_MWAVE is not set # CONFIG_PC8736x_GPIO is not set # CONFIG_RAW_DRIVER is not set CONFIG_HPET=y CONFIG_HPET_MMAP=y # CONFIG_HANGCHECK_TIMER is not set # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set CONFIG_DEVPORT=y CONFIG_I2C=m CONFIG_I2C_BOARDINFO=y CONFIG_I2C_CHARDEV=m CONFIG_I2C_HELPER_AUTO=y CONFIG_I2C_ALGOBIT=m CONFIG_I2C_ALGOPCA=m # # I2C Hardware Bus support # # # PC SMBus host controller drivers # CONFIG_I2C_ALI1535=m CONFIG_I2C_ALI1563=m CONFIG_I2C_ALI15X3=m CONFIG_I2C_AMD756=m CONFIG_I2C_AMD8111=m CONFIG_I2C_I801=m # CONFIG_I2C_ISCH is not set CONFIG_I2C_PIIX4=m CONFIG_I2C_NFORCE2=m CONFIG_I2C_SIS5595=m CONFIG_I2C_SIS630=m CONFIG_I2C_SIS96X=m CONFIG_I2C_VIA=m CONFIG_I2C_VIAPRO=m # # I2C system bus drivers (mostly embedded / system-on-chip) # CONFIG_I2C_OCORES=m CONFIG_I2C_SIMTEC=m # # External I2C/SMBus adapter drivers # CONFIG_I2C_PARPORT_LIGHT=m CONFIG_I2C_TAOS_EVM=m # CONFIG_I2C_TINY_USB is not set # # Graphics adapter I2C/DDC channel drivers # CONFIG_I2C_VOODOO3=m # # Other I2C/SMBus bus drivers # CONFIG_I2C_PCA_PLATFORM=m CONFIG_I2C_STUB=m # # Miscellaneous I2C Chip support # CONFIG_DS1682=m # CONFIG_AT24 is not set CONFIG_SENSORS_EEPROM=m CONFIG_SENSORS_PCF8574=m CONFIG_PCF8575=m # CONFIG_SENSORS_PCA9539 is not set CONFIG_SENSORS_PCF8591=m CONFIG_SENSORS_MAX6875=m CONFIG_SENSORS_TSL2550=m # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set CONFIG_W1=m # # 1-wire Bus Masters # CONFIG_W1_MASTER_MATROX=m # CONFIG_W1_MASTER_DS2490 is not set CONFIG_W1_MASTER_DS2482=m # # 1-wire Slaves # CONFIG_W1_SLAVE_THERM=m CONFIG_W1_SLAVE_SMEM=m CONFIG_W1_SLAVE_DS2433=m # CONFIG_W1_SLAVE_DS2433_CRC is not set CONFIG_W1_SLAVE_DS2760=m # CONFIG_W1_SLAVE_BQ27000 is not set CONFIG_POWER_SUPPLY=y # CONFIG_POWER_SUPPLY_DEBUG is not set CONFIG_PDA_POWER=m CONFIG_BATTERY_DS2760=m # CONFIG_BATTERY_BQ27x00 is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ABITUGURU is not set # CONFIG_SENSORS_ABITUGURU3 is not set # CONFIG_SENSORS_AD7414 is not set # CONFIG_SENSORS_AD7418 is not set # CONFIG_SENSORS_ADM1021 is not set # CONFIG_SENSORS_ADM1025 is not set # CONFIG_SENSORS_ADM1026 is not set # CONFIG_SENSORS_ADM1029 is not set # CONFIG_SENSORS_ADM1031 is not set # CONFIG_SENSORS_ADM9240 is not set CONFIG_SENSORS_ADT7462=m # CONFIG_SENSORS_ADT7470 is not set # CONFIG_SENSORS_ADT7473 is not set # CONFIG_SENSORS_ADT7475 is not set # CONFIG_SENSORS_K8TEMP is not set # CONFIG_SENSORS_ASB100 is not set # CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_I5K_AMB is not set # CONFIG_SENSORS_F71805F is not set # CONFIG_SENSORS_F71882FG is not set # CONFIG_SENSORS_F75375S is not set # CONFIG_SENSORS_FSCHER is not set # CONFIG_SENSORS_FSCPOS is not set # CONFIG_SENSORS_FSCHMD is not set # CONFIG_SENSORS_GL518SM is not set # CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_CORETEMP is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM75 is not set # CONFIG_SENSORS_LM77 is not set # CONFIG_SENSORS_LM78 is not set # CONFIG_SENSORS_LM80 is not set # CONFIG_SENSORS_LM83 is not set # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set # CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_LM93 is not set # CONFIG_SENSORS_LTC4245 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_MAX6650 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_DME1737 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set # CONFIG_SENSORS_W83781D is not set # CONFIG_SENSORS_W83791D is not set # CONFIG_SENSORS_W83792D is not set # CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83L786NG is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_SENSORS_HDAPS is not set # CONFIG_SENSORS_LIS3LV02D is not set # CONFIG_SENSORS_APPLESMC is not set # CONFIG_HWMON_DEBUG_CHIP is not set CONFIG_THERMAL=m CONFIG_THERMAL_HWMON=y # CONFIG_WATCHDOG is not set CONFIG_SSB_POSSIBLE=y # # Sonics Silicon Backplane # CONFIG_SSB=m CONFIG_SSB_SPROM=y CONFIG_SSB_PCIHOST_POSSIBLE=y CONFIG_SSB_PCIHOST=y # CONFIG_SSB_B43_PCI_BRIDGE is not set # CONFIG_SSB_DEBUG is not set CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y CONFIG_SSB_DRIVER_PCICORE=y # # Multifunction device drivers # # CONFIG_MFD_CORE is not set # CONFIG_MFD_SM501 is not set # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_PCF50633 is not set # CONFIG_REGULATOR is not set # # Multimedia devices # # # Multimedia core support # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set # CONFIG_VIDEO_MEDIA is not set # # Multimedia drivers # # CONFIG_DAB is not set # # Graphics support # CONFIG_AGP=y CONFIG_AGP_AMD64=y CONFIG_AGP_INTEL=m CONFIG_AGP_SIS=m CONFIG_AGP_VIA=m # CONFIG_DRM is not set # CONFIG_VGASTATE is not set # CONFIG_VIDEO_OUTPUT_CONTROL is not set # CONFIG_FB is not set CONFIG_BACKLIGHT_LCD_SUPPORT=y # CONFIG_LCD_CLASS_DEVICE is not set CONFIG_BACKLIGHT_CLASS_DEVICE=y CONFIG_BACKLIGHT_GENERIC=y # CONFIG_BACKLIGHT_PROGEAR is not set # CONFIG_BACKLIGHT_MBP_NVIDIA is not set # CONFIG_BACKLIGHT_SAHARA is not set # # Display device support # # CONFIG_DISPLAY_SUPPORT is not set # # Console display driver support # CONFIG_VGA_CONSOLE=y # CONFIG_VGACON_SOFT_SCROLLBACK is not set CONFIG_DUMMY_CONSOLE=y CONFIG_SOUND=m CONFIG_SOUND_OSS_CORE=y CONFIG_SND=m CONFIG_SND_TIMER=m CONFIG_SND_PCM=m CONFIG_SND_JACK=y CONFIG_SND_SEQUENCER=m # CONFIG_SND_SEQ_DUMMY is not set CONFIG_SND_OSSEMUL=y CONFIG_SND_MIXER_OSS=m CONFIG_SND_PCM_OSS=m CONFIG_SND_PCM_OSS_PLUGINS=y CONFIG_SND_SEQUENCER_OSS=y # CONFIG_SND_HRTIMER is not set # CONFIG_SND_DYNAMIC_MINORS is not set CONFIG_SND_SUPPORT_OLD_API=y CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y CONFIG_SND_DRIVERS=y # CONFIG_SND_PCSP is not set # CONFIG_SND_DUMMY is not set # CONFIG_SND_VIRMIDI is not set # CONFIG_SND_SERIAL_U16550 is not set # CONFIG_SND_MPU401 is not set CONFIG_SND_PCI=y # CONFIG_SND_AD1889 is not set # CONFIG_SND_ALS300 is not set # CONFIG_SND_ALS4000 is not set # CONFIG_SND_ALI5451 is not set # CONFIG_SND_ATIIXP is not set # CONFIG_SND_ATIIXP_MODEM is not set # CONFIG_SND_AU8810 is not set # CONFIG_SND_AU8820 is not set # CONFIG_SND_AU8830 is not set # CONFIG_SND_AW2 is not set # CONFIG_SND_AZT3328 is not set # CONFIG_SND_BT87X is not set # CONFIG_SND_CA0106 is not set # CONFIG_SND_CMIPCI is not set # CONFIG_SND_OXYGEN is not set # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS5530 is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set # CONFIG_SND_DARLA24 is not set # CONFIG_SND_GINA24 is not set # CONFIG_SND_LAYLA24 is not set # CONFIG_SND_MONA is not set # CONFIG_SND_MIA is not set # CONFIG_SND_ECHO3G is not set # CONFIG_SND_INDIGO is not set # CONFIG_SND_INDIGOIO is not set # CONFIG_SND_INDIGODJ is not set # CONFIG_SND_EMU10K1 is not set # CONFIG_SND_EMU10K1X is not set # CONFIG_SND_ENS1370 is not set # CONFIG_SND_ENS1371 is not set # CONFIG_SND_ES1938 is not set # CONFIG_SND_ES1968 is not set # CONFIG_SND_FM801 is not set CONFIG_SND_HDA_INTEL=m # CONFIG_SND_HDA_HWDEP is not set # CONFIG_SND_HDA_INPUT_BEEP is not set CONFIG_SND_HDA_CODEC_REALTEK=y CONFIG_SND_HDA_CODEC_ANALOG=y CONFIG_SND_HDA_CODEC_SIGMATEL=y CONFIG_SND_HDA_CODEC_VIA=y CONFIG_SND_HDA_CODEC_ATIHDMI=y CONFIG_SND_HDA_CODEC_NVHDMI=y CONFIG_SND_HDA_CODEC_INTELHDMI=y CONFIG_SND_HDA_ELD=y CONFIG_SND_HDA_CODEC_CONEXANT=y CONFIG_SND_HDA_CODEC_CMEDIA=y CONFIG_SND_HDA_CODEC_SI3054=y CONFIG_SND_HDA_GENERIC=y # CONFIG_SND_HDA_POWER_SAVE is not set # CONFIG_SND_HDSP is not set # CONFIG_SND_HDSPM is not set # CONFIG_SND_HIFIER is not set # CONFIG_SND_ICE1712 is not set # CONFIG_SND_ICE1724 is not set # CONFIG_SND_INTEL8X0 is not set # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set # CONFIG_SND_PCXHR is not set # CONFIG_SND_RIPTIDE is not set # CONFIG_SND_RME32 is not set # CONFIG_SND_RME96 is not set # CONFIG_SND_RME9652 is not set # CONFIG_SND_SONICVIBES is not set # CONFIG_SND_TRIDENT is not set # CONFIG_SND_VIA82XX is not set # CONFIG_SND_VIA82XX_MODEM is not set # CONFIG_SND_VIRTUOSO is not set # CONFIG_SND_VX222 is not set # CONFIG_SND_YMFPCI is not set CONFIG_SND_USB=y # CONFIG_SND_USB_AUDIO is not set # CONFIG_SND_USB_USX2Y is not set # CONFIG_SND_USB_CAIAQ is not set # CONFIG_SND_USB_US122L is not set # CONFIG_SND_SOC is not set # CONFIG_SOUND_PRIME is not set # CONFIG_HID_SUPPORT is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y CONFIG_USB=m # CONFIG_USB_DEBUG is not set CONFIG_USB_ANNOUNCE_NEW_DEVICES=y # # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y CONFIG_USB_DEVICE_CLASS=y # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_SUSPEND is not set # CONFIG_USB_OTG is not set CONFIG_USB_MON=m # CONFIG_USB_WUSB is not set # CONFIG_USB_WUSB_CBAF is not set # # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set # CONFIG_USB_EHCI_HCD is not set # CONFIG_USB_OXU210HP_HCD is not set # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=m CONFIG_USB_OHCI_HCD_SSB=y # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=m # CONFIG_USB_SL811_HCD is not set # CONFIG_USB_R8A66597_HCD is not set # CONFIG_USB_HWA_HCD is not set # # Enable Host or Gadget support to see Inventra options # # # USB Device Class drivers # # CONFIG_USB_ACM is not set CONFIG_USB_PRINTER=m # CONFIG_USB_WDM is not set # CONFIG_USB_TMC is not set # # NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed; # # # see USB_STORAGE Help for more information # CONFIG_USB_STORAGE=m # CONFIG_USB_STORAGE_DEBUG is not set # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set CONFIG_USB_STORAGE_USBAT=y CONFIG_USB_STORAGE_SDDR09=y CONFIG_USB_STORAGE_SDDR55=y # CONFIG_USB_STORAGE_JUMPSHOT is not set # CONFIG_USB_STORAGE_ALAUDA is not set # CONFIG_USB_STORAGE_ONETOUCH is not set # CONFIG_USB_STORAGE_KARMA is not set # CONFIG_USB_STORAGE_CYPRESS_ATACB is not set CONFIG_USB_LIBUSUAL=y # # USB Imaging devices # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set # # USB port drivers # # CONFIG_USB_SERIAL is not set # # USB Miscellaneous drivers # # CONFIG_USB_EMI62 is not set # CONFIG_USB_EMI26 is not set # CONFIG_USB_ADUTUX is not set # CONFIG_USB_SEVSEG is not set # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_BERRY_CHARGE is not set # CONFIG_USB_LED is not set # CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGET is not set # CONFIG_USB_IDMOUSE is not set # CONFIG_USB_FTDI_ELAN is not set # CONFIG_USB_APPLEDISPLAY is not set # CONFIG_USB_LD is not set # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set # CONFIG_USB_TEST is not set # CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_VST is not set # # OTG and related infrastructure # # CONFIG_UWB is not set # CONFIG_MMC is not set # CONFIG_MEMSTICK is not set CONFIG_NEW_LEDS=y CONFIG_LEDS_CLASS=m # # LED drivers # # CONFIG_LEDS_ALIX2 is not set # CONFIG_LEDS_PCA9532 is not set CONFIG_LEDS_CLEVO_MAIL=m # CONFIG_LEDS_PCA955X is not set # # LED Triggers # CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_TIMER=m # CONFIG_LEDS_TRIGGER_IDE_DISK is not set CONFIG_LEDS_TRIGGER_HEARTBEAT=m # CONFIG_LEDS_TRIGGER_BACKLIGHT is not set CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # CONFIG_ACCESSIBILITY is not set # CONFIG_EDAC is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_HCTOSYS=y CONFIG_RTC_HCTOSYS_DEVICE="rtc0" # CONFIG_RTC_DEBUG is not set # # RTC interfaces # CONFIG_RTC_INTF_SYSFS=y CONFIG_RTC_INTF_PROC=y CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_INTF_DEV_UIE_EMUL is not set # CONFIG_RTC_DRV_TEST is not set # # I2C RTC drivers # CONFIG_RTC_DRV_DS1307=m CONFIG_RTC_DRV_DS1374=m CONFIG_RTC_DRV_DS1672=m CONFIG_RTC_DRV_MAX6900=m CONFIG_RTC_DRV_RS5C372=m CONFIG_RTC_DRV_ISL1208=m CONFIG_RTC_DRV_X1205=m CONFIG_RTC_DRV_PCF8563=m CONFIG_RTC_DRV_PCF8583=m CONFIG_RTC_DRV_M41T80=m # CONFIG_RTC_DRV_M41T80_WDT is not set CONFIG_RTC_DRV_S35390A=m CONFIG_RTC_DRV_FM3130=m # CONFIG_RTC_DRV_RX8581 is not set # # SPI RTC drivers # # # Platform RTC drivers # CONFIG_RTC_DRV_CMOS=y # CONFIG_RTC_DRV_DS1286 is not set CONFIG_RTC_DRV_DS1511=m CONFIG_RTC_DRV_DS1553=m CONFIG_RTC_DRV_DS1742=m CONFIG_RTC_DRV_STK17TA8=m CONFIG_RTC_DRV_M48T86=m # CONFIG_RTC_DRV_M48T35 is not set CONFIG_RTC_DRV_M48T59=m # CONFIG_RTC_DRV_BQ4802 is not set CONFIG_RTC_DRV_V3020=m # # on-CPU RTC drivers # # CONFIG_DMADEVICES is not set CONFIG_UIO=m # CONFIG_UIO_CIF is not set # CONFIG_UIO_PDRV is not set # CONFIG_UIO_PDRV_GENIRQ is not set # CONFIG_UIO_SMX is not set # CONFIG_UIO_SERCOS3 is not set # CONFIG_STAGING is not set CONFIG_X86_PLATFORM_DEVICES=y CONFIG_ACER_WMI=m CONFIG_ASUS_LAPTOP=m CONFIG_FUJITSU_LAPTOP=m # CONFIG_FUJITSU_LAPTOP_DEBUG is not set # CONFIG_HP_WMI is not set CONFIG_MSI_LAPTOP=m # CONFIG_PANASONIC_LAPTOP is not set # CONFIG_COMPAL_LAPTOP is not set CONFIG_SONY_LAPTOP=m CONFIG_SONYPI_COMPAT=y CONFIG_THINKPAD_ACPI=m # CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set # CONFIG_THINKPAD_ACPI_DEBUG is not set CONFIG_THINKPAD_ACPI_BAY=y CONFIG_THINKPAD_ACPI_VIDEO=y CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y # CONFIG_INTEL_MENLOW is not set CONFIG_ACPI_WMI=m CONFIG_ACPI_ASUS=m CONFIG_ACPI_TOSHIBA=m # # Firmware Drivers # # CONFIG_EDD is not set CONFIG_FIRMWARE_MEMMAP=y # CONFIG_DELL_RBU is not set # CONFIG_DCDBAS is not set CONFIG_DMIID=y # CONFIG_ISCSI_IBFT_FIND is not set # # File systems # # CONFIG_EXT2_FS is not set CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y CONFIG_EXT3_FS_POSIX_ACL=y CONFIG_EXT3_FS_SECURITY=y CONFIG_EXT4_FS=m # CONFIG_EXT4DEV_COMPAT is not set CONFIG_EXT4_FS_XATTR=y # CONFIG_EXT4_FS_POSIX_ACL is not set # CONFIG_EXT4_FS_SECURITY is not set CONFIG_JBD=y # CONFIG_JBD_DEBUG is not set CONFIG_JBD2=m # CONFIG_JBD2_DEBUG is not set CONFIG_FS_MBCACHE=y CONFIG_REISERFS_FS=y # CONFIG_REISERFS_CHECK is not set # CONFIG_REISERFS_PROC_INFO is not set CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y CONFIG_FILE_LOCKING=y CONFIG_XFS_FS=y CONFIG_XFS_QUOTA=y CONFIG_XFS_POSIX_ACL=y CONFIG_XFS_RT=y # CONFIG_XFS_DEBUG is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y CONFIG_PRINT_QUOTA_WARNING=y CONFIG_QUOTA_TREE=m # CONFIG_QFMT_V1 is not set CONFIG_QFMT_V2=m CONFIG_QUOTACTL=y CONFIG_AUTOFS_FS=m CONFIG_AUTOFS4_FS=m CONFIG_FUSE_FS=m CONFIG_GENERIC_ACL=y # # CD-ROM/DVD Filesystems # CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_ZISOFS=y CONFIG_UDF_FS=m CONFIG_UDF_NLS=y # # DOS/FAT/NT Filesystems # CONFIG_FAT_FS=m # CONFIG_MSDOS_FS is not set CONFIG_VFAT_FS=m CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" # CONFIG_NTFS_FS is not set # # Pseudo filesystems # CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_PROC_SYSCTL=y CONFIG_PROC_PAGE_MONITOR=y CONFIG_SYSFS=y CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y CONFIG_HUGETLBFS=y CONFIG_HUGETLB_PAGE=y CONFIG_CONFIGFS_FS=m CONFIG_MISC_FILESYSTEMS=y # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_ECRYPT_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set CONFIG_CRAMFS=m # CONFIG_SQUASHFS is not set # CONFIG_VXFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_OMFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set # CONFIG_NETWORK_FILESYSTEMS is not set # # Partition Types # CONFIG_PARTITION_ADVANCED=y CONFIG_ACORN_PARTITION=y # CONFIG_ACORN_PARTITION_CUMANA is not set # CONFIG_ACORN_PARTITION_EESOX is not set CONFIG_ACORN_PARTITION_ICS=y # CONFIG_ACORN_PARTITION_ADFS is not set # CONFIG_ACORN_PARTITION_POWERTEC is not set CONFIG_ACORN_PARTITION_RISCIX=y CONFIG_OSF_PARTITION=y CONFIG_AMIGA_PARTITION=y CONFIG_ATARI_PARTITION=y CONFIG_MAC_PARTITION=y CONFIG_MSDOS_PARTITION=y CONFIG_BSD_DISKLABEL=y CONFIG_MINIX_SUBPARTITION=y CONFIG_SOLARIS_X86_PARTITION=y CONFIG_UNIXWARE_DISKLABEL=y CONFIG_LDM_PARTITION=y # CONFIG_LDM_DEBUG is not set CONFIG_SGI_PARTITION=y CONFIG_ULTRIX_PARTITION=y CONFIG_SUN_PARTITION=y CONFIG_KARMA_PARTITION=y CONFIG_EFI_PARTITION=y # CONFIG_SYSV68_PARTITION is not set CONFIG_NLS=m CONFIG_NLS_DEFAULT="utf8" CONFIG_NLS_CODEPAGE_437=m # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set CONFIG_NLS_CODEPAGE_850=m CONFIG_NLS_CODEPAGE_852=m # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set # CONFIG_NLS_CODEPAGE_860 is not set # CONFIG_NLS_CODEPAGE_861 is not set # CONFIG_NLS_CODEPAGE_862 is not set # CONFIG_NLS_CODEPAGE_863 is not set # CONFIG_NLS_CODEPAGE_864 is not set # CONFIG_NLS_CODEPAGE_865 is not set # CONFIG_NLS_CODEPAGE_866 is not set # CONFIG_NLS_CODEPAGE_869 is not set # CONFIG_NLS_CODEPAGE_936 is not set # CONFIG_NLS_CODEPAGE_950 is not set # CONFIG_NLS_CODEPAGE_932 is not set # CONFIG_NLS_CODEPAGE_949 is not set # CONFIG_NLS_CODEPAGE_874 is not set # CONFIG_NLS_ISO8859_8 is not set CONFIG_NLS_CODEPAGE_1250=m CONFIG_NLS_CODEPAGE_1251=m CONFIG_NLS_ASCII=m CONFIG_NLS_ISO8859_1=m CONFIG_NLS_ISO8859_2=m # CONFIG_NLS_ISO8859_3 is not set # CONFIG_NLS_ISO8859_4 is not set # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set # CONFIG_NLS_ISO8859_13 is not set # CONFIG_NLS_ISO8859_14 is not set CONFIG_NLS_ISO8859_15=m # CONFIG_NLS_KOI8_R is not set # CONFIG_NLS_KOI8_U is not set CONFIG_NLS_UTF8=m # CONFIG_DLM is not set # # Kernel hacking # CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_PRINTK_TIME=y CONFIG_ALLOW_WARNINGS=y CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_FRAME_WARN=2048 CONFIG_MAGIC_SYSRQ=y CONFIG_UNUSED_SYMBOLS=y CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y # CONFIG_DEBUG_SHIRQ is not set CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 CONFIG_DETECT_HUNG_TASK=y # CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0 CONFIG_SCHED_DEBUG=y CONFIG_SCHEDSTATS=y # CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_OBJECTS is not set # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_PREEMPT is not set # CONFIG_DEBUG_RT_MUTEXES is not set # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set # CONFIG_DEBUG_LOCK_ALLOC is not set # CONFIG_PROVE_LOCKING is not set # CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set CONFIG_STACKTRACE=y # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_VIRTUAL is not set # CONFIG_DEBUG_WRITECOUNT is not set CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set CONFIG_ARCH_WANT_FRAME_POINTERS=y CONFIG_FRAME_POINTER=y # CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_KPROBES_SANITY_TEST is not set # CONFIG_BACKTRACE_SELF_TEST is not set # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set # CONFIG_LKDTM is not set # CONFIG_FAULT_INJECTION is not set CONFIG_LATENCYTOP=y # CONFIG_SYSCTL_SYSCALL_CHECK is not set CONFIG_USER_STACKTRACE_SUPPORT=y CONFIG_NOP_TRACER=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_HAVE_HW_BRANCH_TRACER=y CONFIG_TRACER_MAX_TRACE=y CONFIG_RING_BUFFER=y CONFIG_TRACING=y # # Tracers # # CONFIG_FUNCTION_TRACER is not set # CONFIG_IRQSOFF_TRACER is not set # CONFIG_PREEMPT_TRACER is not set CONFIG_SYSPROF_TRACER=y CONFIG_SCHED_TRACER=y CONFIG_CONTEXT_SWITCH_TRACER=y # CONFIG_BOOT_TRACER is not set # CONFIG_TRACE_BRANCH_PROFILING is not set # CONFIG_POWER_TRACER is not set # CONFIG_STACK_TRACER is not set # CONFIG_HW_BRANCH_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set CONFIG_FTRACE_SELFTEST=y CONFIG_FTRACE_STARTUP_TEST=y # CONFIG_MMIOTRACE is not set # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set # CONFIG_DYNAMIC_PRINTK_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set CONFIG_STRICT_DEVMEM=y # CONFIG_X86_VERBOSE_BOOTUP is not set CONFIG_EARLY_PRINTK=y # CONFIG_EARLY_PRINTK_DBGP is not set # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_DEBUG_PAGEALLOC is not set # CONFIG_X86_PTDUMP is not set CONFIG_DEBUG_RODATA=y # CONFIG_DEBUG_RODATA_TEST is not set # CONFIG_DEBUG_NX_TEST is not set # CONFIG_IOMMU_DEBUG is not set CONFIG_HAVE_MMIOTRACE_SUPPORT=y CONFIG_IO_DELAY_TYPE_0X80=0 CONFIG_IO_DELAY_TYPE_0XED=1 CONFIG_IO_DELAY_TYPE_UDELAY=2 CONFIG_IO_DELAY_TYPE_NONE=3 CONFIG_IO_DELAY_0X80=y # CONFIG_IO_DELAY_0XED is not set # CONFIG_IO_DELAY_UDELAY is not set # CONFIG_IO_DELAY_NONE is not set CONFIG_DEFAULT_IO_DELAY_TYPE=0 # CONFIG_KMEMCHECK is not set # CONFIG_DEBUG_BOOT_PARAMS is not set # CONFIG_CPA_DEBUG is not set # CONFIG_OPTIMIZE_INLINING is not set # # Security options # CONFIG_KEYS=y # CONFIG_KEYS_DEBUG_PROC_KEYS is not set CONFIG_SECURITY=y # CONFIG_SECURITYFS is not set CONFIG_SECURITY_NETWORK=y CONFIG_SECURITY_NETWORK_XFRM=y # CONFIG_SECURITY_PATH is not set CONFIG_SECURITY_FILE_CAPABILITIES=y CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0 CONFIG_CRYPTO=y # # Crypto core or helper # # CONFIG_CRYPTO_FIPS is not set CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_ALGAPI2=y CONFIG_CRYPTO_AEAD=m CONFIG_CRYPTO_AEAD2=y CONFIG_CRYPTO_BLKCIPHER=m CONFIG_CRYPTO_BLKCIPHER2=y CONFIG_CRYPTO_HASH=y CONFIG_CRYPTO_HASH2=y CONFIG_CRYPTO_RNG=m CONFIG_CRYPTO_RNG2=y CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_MANAGER2=y CONFIG_CRYPTO_GF128MUL=m CONFIG_CRYPTO_NULL=m # CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_AUTHENC=m CONFIG_CRYPTO_TEST=m # # Authenticated Encryption with Associated Data # CONFIG_CRYPTO_CCM=m CONFIG_CRYPTO_GCM=m CONFIG_CRYPTO_SEQIV=m # # Block modes # CONFIG_CRYPTO_CBC=m CONFIG_CRYPTO_CTR=m CONFIG_CRYPTO_CTS=m CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_LRW=m CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_XTS=m # # Hash modes # CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_XCBC=m # # Digest # CONFIG_CRYPTO_CRC32C=m CONFIG_CRYPTO_CRC32C_INTEL=m CONFIG_CRYPTO_MD4=m CONFIG_CRYPTO_MD5=y CONFIG_CRYPTO_MICHAEL_MIC=m # CONFIG_CRYPTO_RMD128 is not set # CONFIG_CRYPTO_RMD160 is not set # CONFIG_CRYPTO_RMD256 is not set # CONFIG_CRYPTO_RMD320 is not set CONFIG_CRYPTO_SHA1=m CONFIG_CRYPTO_SHA256=m CONFIG_CRYPTO_SHA512=m CONFIG_CRYPTO_TGR192=m CONFIG_CRYPTO_WP512=m # # Ciphers # CONFIG_CRYPTO_AES=m CONFIG_CRYPTO_AES_X86_64=m CONFIG_CRYPTO_ANUBIS=m CONFIG_CRYPTO_ARC4=m CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_CAMELLIA=m CONFIG_CRYPTO_CAST5=m CONFIG_CRYPTO_CAST6=m CONFIG_CRYPTO_DES=m CONFIG_CRYPTO_FCRYPT=m CONFIG_CRYPTO_KHAZAD=m CONFIG_CRYPTO_SALSA20=m CONFIG_CRYPTO_SALSA20_X86_64=m CONFIG_CRYPTO_SEED=m CONFIG_CRYPTO_SERPENT=m CONFIG_CRYPTO_TEA=m CONFIG_CRYPTO_TWOFISH=m CONFIG_CRYPTO_TWOFISH_COMMON=m CONFIG_CRYPTO_TWOFISH_X86_64=m # # Compression # CONFIG_CRYPTO_DEFLATE=m CONFIG_CRYPTO_LZO=m # # Random Number Generation # # CONFIG_CRYPTO_ANSI_CPRNG is not set CONFIG_CRYPTO_HW=y CONFIG_CRYPTO_DEV_HIFN_795X=m CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y CONFIG_HAVE_KVM=y # CONFIG_VIRTUALIZATION is not set # # Library routines # CONFIG_BITREVERSE=y CONFIG_GENERIC_FIND_FIRST_BIT=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_FIND_LAST_BIT=y CONFIG_CRC_CCITT=m CONFIG_CRC16=m CONFIG_CRC_T10DIF=m CONFIG_CRC_ITU_T=m CONFIG_CRC32=y CONFIG_CRC7=m CONFIG_LIBCRC32C=m CONFIG_ZLIB_INFLATE=m CONFIG_ZLIB_DEFLATE=m CONFIG_LZO_COMPRESS=m CONFIG_LZO_DECOMPRESS=m CONFIG_TEXTSEARCH=y CONFIG_TEXTSEARCH_KMP=m CONFIG_TEXTSEARCH_BM=m CONFIG_TEXTSEARCH_FSM=m CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y ^ permalink raw reply related [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-24 16:23 ` Török Edwin @ 2009-01-24 17:27 ` Ingo Molnar 2009-01-24 18:57 ` Török Edwin ` (2 more replies) 2009-01-24 20:07 ` Andreas Schwab 1 sibling, 3 replies; 22+ messages in thread From: Ingo Molnar @ 2009-01-24 17:27 UTC (permalink / raw) To: Török Edwin Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel, LLVM Developers Mailing List * Török Edwin <edwintorok@gmail.com> wrote: > On 2009-01-23 20:27, Török Edwin wrote: > >>> > >>> > >> i'd not mind it at all if the kernel could be built with other open-source > >> compilers too. > >> > >> Now in this case the patch you suggest might end up hurting the end result > >> so it's not an unconditional 'yes'. But ... how much it actually matters > >> depends on the circumstances. > >> > >> So could you please send a sample patch for some of most common inline > >> assembly statements that are affected by this, so that we can see: > >> > >> 1) how ugly the LLVM workarounds are > >> > >> > > > > Ok, I will prepare a patch for both cases. > > > > > >> 2) how they affect the generated kernel image in practice > >> > >> My gut feeling is that it's going to be acceptable with a bit of thinking > >> (we might even do some wrappers to do this cleanly) - but i'd really like > >> to see it before giving you that judgement. > >> > > The below patch is to build the kernel for x86_64, with the attached > .config, > using llvm-gcc (trunk, with patch from > http://llvm.org/bugs/show_bug.cgi?id=2989#c2). > > The .config has KVM turned off, because I didn't know how to change > x86_emulate.c so that LLVM builds it > (http://llvm.org/bugs/show_bug.cgi?id=3373#c10) > For 32-bit some more changes are required. > > The resulting kernel image are of the same size > $ ls -l vmlinux.patched > -rwxr-xr-x 1 edwin edwin 11277206 2009-01-24 17:58 vmlinux.patched > $ ls -l vmlinux > -rwxr-xr-x 1 edwin edwin 11277206 2009-01-24 18:01 vmlinux > > They aren't identical though, a disassembly shows that the address of > most of functions changed, > also some register assignments changed (r14 instead of r15, and so on). > > Are these changes correct, and are they acceptable? > > Best regards, > --Edwin > > --- > arch/x86/include/asm/uaccess.h | 10 ++++++---- > arch/x86/lib/delay.c | 2 +- > 2 files changed, 7 insertions(+), 5 deletions(-) > > diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h > index 69d2757..28280de 100644 > --- a/arch/x86/include/asm/uaccess.h > +++ b/arch/x86/include/asm/uaccess.h > @@ -154,7 +154,7 @@ extern int __get_user_bad(void); > > #define get_user(x, ptr) \ > ({ \ > - int __ret_gu; \ > + unsigned long __ret_gu; \ > unsigned long __val_gu; \ > __chk_user_ptr(ptr); \ > might_fault(); \ > @@ -176,7 +176,7 @@ extern int __get_user_bad(void); > break; \ > } \ > (x) = (__typeof__(*(ptr)))__val_gu; \ > - __ret_gu; \ > + (int)__ret_gu; \ > }) > > #define __put_user_x(size, x, ptr, __ret_pu) \ > @@ -239,11 +239,13 @@ extern void __put_user_8(void); > */ > #define put_user(x, ptr) \ > ({ \ > - int __ret_pu; \ > + __typeof__(*(ptr)) __ret_pu; \ This does not look right. We can sometimes have put_user() of non-integer types (say structures). How does the (int)__ret_pu cast work in that case? We'll fall into this branch in that case: default: \ __put_user_x(X, __pu_val, ptr, __ret_pu); \ break; \ and __ret_pu has a nonsensical type in that case. > __typeof__(*(ptr)) __pu_val; \ > __chk_user_ptr(ptr); \ > might_fault(); \ > __pu_val = x; \ > + /* return value is 0 or -EFAULT, both fit in 1 byte, and \ > + * are sign-extendable to int */ \ > switch (sizeof(*(ptr))) { \ > case 1: \ > __put_user_x(1, __pu_val, ptr, __ret_pu); \ > @@ -261,7 +263,7 @@ extern void __put_user_8(void); > __put_user_x(X, __pu_val, ptr, __ret_pu); \ > break; \ > } \ > - __ret_pu; \ > + (int)__ret_pu; \ > }) > > #define __put_user_size(x, ptr, size, retval, errret) \ > diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c > index f456860..12d27f8 100644 > --- a/arch/x86/lib/delay.c > +++ b/arch/x86/lib/delay.c > @@ -112,7 +112,7 @@ EXPORT_SYMBOL(__delay); > > inline void __const_udelay(unsigned long xloops) > { > - int d0; > + unsigned long d0; > > xloops *= 4; > asm("mull %%edx" Is this all that you need (plus the 16-bit setup code tweaks) to get LLVM to successfully build a 64-bit kernel image? If yes then this doesnt look all that bad or invasive at first sight (if the put_user() workaround can be expressed in a cleaner way), but in any case it would be nice to hear an LLVM person's opinion about roughly when this is going to be solved in LLVM itself. Ingo ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-24 17:27 ` Ingo Molnar @ 2009-01-24 18:57 ` Török Edwin 2009-01-24 21:25 ` [LLVMdev] " Mike Stump 2009-01-24 19:23 ` Chris Lattner 2009-01-27 19:42 ` Duncan Sands 2 siblings, 1 reply; 22+ messages in thread From: Török Edwin @ 2009-01-24 18:57 UTC (permalink / raw) To: Ingo Molnar Cc: Thomas Gleixner, H. Peter Anvin, Linux Kernel, LLVM Developers Mailing List On 2009-01-24 19:27, Ingo Molnar wrote: > * Török Edwin <edwintorok@gmail.com> wrote: > >> #define put_user(x, ptr) \ >> ({ \ >> - int __ret_pu; \ >> + __typeof__(*(ptr)) __ret_pu; \ >> > > This does not look right. We can sometimes have put_user() of non-integer > types (say structures). I didn't encounter it with my .config, but it is certainly possible. I think using __builtin_choose_expr would be better than the switch See a new patch at the end of this mail, using __builtin_choose_expr. [vmlinux size still same] It also includes some 32-bit stuff, but that is not complete yet. > How does the (int)__ret_pu cast work in that case? > It would fail at compile time, with an error message that you can't cast aggregates to ints, so my patch is not good. > We'll fall into this branch in that case: > > default: \ > __put_user_x(X, __pu_val, ptr, __ret_pu); \ > break; \ > > and __ret_pu has a nonsensical type in that case. > That branch is a call to a non-existent function __put_user_X, and should give error at link time, right? In the new patch below I used (void)-EFAULT so that you would get an error at compile time (as suggested in __builtin_choose_expr in gcc's manual), if that branch would ever get expanded. Does that sound right? > >> __typeof__(*(ptr)) __pu_val; \ >> __chk_user_ptr(ptr); \ >> might_fault(); \ >> __pu_val = x; \ >> + /* return value is 0 or -EFAULT, both fit in 1 byte, and \ >> + * are sign-extendable to int */ \ >> switch (sizeof(*(ptr))) { \ >> case 1: \ >> __put_user_x(1, __pu_val, ptr, __ret_pu); \ >> @@ -261,7 +263,7 @@ extern void __put_user_8(void); >> __put_user_x(X, __pu_val, ptr, __ret_pu); \ >> break; \ >> } \ >> - __ret_pu; \ >> + (int)__ret_pu; \ >> }) >> >> #define __put_user_size(x, ptr, size, retval, errret) \ >> diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c >> index f456860..12d27f8 100644 >> --- a/arch/x86/lib/delay.c >> +++ b/arch/x86/lib/delay.c >> @@ -112,7 +112,7 @@ EXPORT_SYMBOL(__delay); >> >> inline void __const_udelay(unsigned long xloops) >> { >> - int d0; >> + unsigned long d0; >> >> xloops *= 4; >> asm("mull %%edx" >> > > Is this all that you need (plus the 16-bit setup code tweaks) The 16-bit setup code is compiled, but obviously doesn't work. I think the best approach would be for LLVM to give a warning/error, when -fno-unit-at-a-time is used, since it doesn't support that. > to get LLVM > to successfully build a 64-bit kernel image? > With the .config I sent previously, yes. With some other .config most likely more changes are needed, for example the SMP code, KVM code, but as I said in my previous email I don't know how to "fix" the inline asm in that case. There's something wrong with building some modules also, I keep getting an "idr_init" undefined error, but the symbol is present in my vmlinux. If I turn make those modules built into the kernel it works then (sctp, w1, thermalsysfs). It looks like I'll also have to submit some patches for ARCH=um, because I get undefined references to __bad_size, __guard, and __stack_smash_handler. __bad_size is probably because LLVM didn't inline expand + DCE something GCC did. With an unpatched LLVM I would also need weak attributes to be on the function type, instead of the return type, but I think thats an LLVM bug, and a one-line patch corrects it. > If yes then this doesnt look all that bad or invasive at first sight (if > the put_user() workaround can be expressed in a cleaner way), but in any > case it would be nice to hear an LLVM person's opinion about roughly when > this is going to be solved in LLVM itself. > Yes, that is why LLVMDev is on Cc:, somebody will eventually reply ;) Not-Signed-off-by: Török Edwin <edwintorok@gmail.com> --- arch/x86/include/asm/uaccess.h | 41 +++++++++++++++++++-------------------- arch/x86/lib/delay.c | 2 +- arch/x86/pci/pcbios.c | 4 ++- 3 files changed, 24 insertions(+), 23 deletions(-) diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 69d2757..46d00a8 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -154,7 +154,7 @@ extern int __get_user_bad(void); #define get_user(x, ptr) \ ({ \ - int __ret_gu; \ + unsigned long __ret_gu; \ unsigned long __val_gu; \ __chk_user_ptr(ptr); \ might_fault(); \ @@ -176,7 +176,7 @@ extern int __get_user_bad(void); break; \ } \ (x) = (__typeof__(*(ptr)))__val_gu; \ - __ret_gu; \ + (int)__ret_gu; \ }) #define __put_user_x(size, x, ptr, __ret_pu) \ @@ -200,12 +200,15 @@ extern int __get_user_bad(void); : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err)) #define __put_user_x8(x, ptr, __ret_pu) \ - asm volatile("call __put_user_8" : "=a" (__ret_pu) \ - : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") + ({ u32 __ret_pu;\ + asm volatile("call __put_user_8" : "=a" (__ret_pu) \ + : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx");\ + (int)__ret_pu;}) #else #define __put_user_asm_u64(x, ptr, retval) \ __put_user_asm(x, ptr, retval, "q", "", "Zr", -EFAULT) -#define __put_user_x8(x, ptr, __ret_pu) __put_user_x(8, x, ptr, __ret_pu) +#define __put_user_x8(x, ptr, __ret_pu) \ + ({ u64 __ret_pu; __put_user_x(8, x, ptr, __ret_pu); (int)__ret_pu; }) #endif extern void __put_user_bad(void); @@ -239,29 +242,25 @@ extern void __put_user_8(void); */ #define put_user(x, ptr) \ ({ \ - int __ret_pu; \ __typeof__(*(ptr)) __pu_val; \ __chk_user_ptr(ptr); \ might_fault(); \ __pu_val = x; \ - switch (sizeof(*(ptr))) { \ - case 1: \ + __builtin_choose_expr(sizeof(*(ptr)) == 1, \ + ({ u8 __ret_pu; \ __put_user_x(1, __pu_val, ptr, __ret_pu); \ - break; \ - case 2: \ + (int)__ret_pu;}), \ + __builtin_choose_expr(sizeof(*(ptr)) == 2, \ + ({ u16 __ret_pu; \ __put_user_x(2, __pu_val, ptr, __ret_pu); \ - break; \ - case 4: \ + (int)__ret_pu;}), \ + __builtin_choose_expr(sizeof(*(ptr)) == 4, \ + ({ u32 __ret_pu; \ __put_user_x(4, __pu_val, ptr, __ret_pu); \ - break; \ - case 8: \ - __put_user_x8(__pu_val, ptr, __ret_pu); \ - break; \ - default: \ - __put_user_x(X, __pu_val, ptr, __ret_pu); \ - break; \ - } \ - __ret_pu; \ + (int)__ret_pu;}), \ + __builtin_choose_expr(sizeof(*(ptr)) == 8, \ + __put_user_x8(__pu_val, ptr, __ret_pu), \ + (void)-EFAULT)))); \ }) #define __put_user_size(x, ptr, size, retval, errret) \ diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c index f456860..12d27f8 100644 --- a/arch/x86/lib/delay.c +++ b/arch/x86/lib/delay.c @@ -112,7 +112,7 @@ EXPORT_SYMBOL(__delay); inline void __const_udelay(unsigned long xloops) { - int d0; + unsigned long d0; xloops *= 4; asm("mull %%edx" diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c index b82cae9..dfff175 100644 --- a/arch/x86/pci/pcbios.c +++ b/arch/x86/pci/pcbios.c @@ -65,6 +65,7 @@ static struct { static unsigned long bios32_service(unsigned long service) { unsigned char return_code; /* %al */ + unsigned long return_code_compat; /* %eax */ unsigned long address; /* %ebx */ unsigned long length; /* %ecx */ unsigned long entry; /* %edx */ @@ -72,13 +73,14 @@ static unsigned long bios32_service(unsigned long service) local_irq_save(flags); __asm__("lcall *(%%edi); cld" - : "=a" (return_code), + : "=a" (return_code_compat), "=b" (address), "=c" (length), "=d" (entry) : "0" (service), "1" (0), "D" (&bios32_indirect)); + return_code = return_code_compat; local_irq_restore(flags); switch (return_code) { -- 1.5.6.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-24 18:57 ` Török Edwin @ 2009-01-24 21:25 ` Mike Stump 0 siblings, 0 replies; 22+ messages in thread From: Mike Stump @ 2009-01-24 21:25 UTC (permalink / raw) To: LLVM Developers Mailing List Cc: Ingo Molnar, Thomas Gleixner, Linux Kernel, H. Peter Anvin On Jan 24, 2009, at 10:57 AM, Török Edwin wrote: > With an unpatched LLVM I would also need weak attributes to be on the > function type, instead of the return type, > but I think thats an LLVM bug, and a one-line patch corrects it. This is indeed a bug in llvm. We'll find a way to get it fixed. ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-24 17:27 ` Ingo Molnar 2009-01-24 18:57 ` Török Edwin @ 2009-01-24 19:23 ` Chris Lattner 2009-01-24 21:10 ` H. Peter Anvin 2009-01-27 19:42 ` Duncan Sands 2 siblings, 1 reply; 22+ messages in thread From: Chris Lattner @ 2009-01-24 19:23 UTC (permalink / raw) To: LLVM Developers Mailing List Cc: Török Edwin, Thomas Gleixner, Linux Kernel, H. Peter Anvin On Jan 24, 2009, at 9:27 AM, Ingo Molnar wrote: >> #define __put_user_size(x, ptr, size, retval, errret) \ >> diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c >> index f456860..12d27f8 100644 >> --- a/arch/x86/lib/delay.c >> +++ b/arch/x86/lib/delay.c >> @@ -112,7 +112,7 @@ EXPORT_SYMBOL(__delay); >> >> inline void __const_udelay(unsigned long xloops) >> { >> - int d0; >> + unsigned long d0; >> >> xloops *= 4; >> asm("mull %%edx" > > Is this all that you need (plus the 16-bit setup code tweaks) to get > LLVM > to successfully build a 64-bit kernel image? > > If yes then this doesnt look all that bad or invasive at first sight > (if > the put_user() workaround can be expressed in a cleaner way), but in > any > case it would be nice to hear an LLVM person's opinion about roughly > when > this is going to be solved in LLVM itself. Hi Ingo, We would like to support some more specific cases (e.g. when tying a pointer/int to a different size pointer/int) but we currently don't intend to support all cases (e.g. tying a FP value to int). We are in this position because the semantics are very vague and hard to reason about (and change based on target endianness) and we had many subtle bugs in the corner cases. Instead of having silent miscompiles, we decided to just reject all the "hard" cases and add them back one by one as there is demand. That way users could choose to modify their asms instead of having them be potentially silently miscompiled. LLVM 2.5 is in its release process right now, so it will not have improvements in this area, but LLVM 2.6 certainly could. If there is interest in building the kernel with 2.5, I think taking the patches would be worthwhile. If that is hopeless anyway, waiting for the LLVM- side fixes should be fine. -Chris ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-24 19:23 ` Chris Lattner @ 2009-01-24 21:10 ` H. Peter Anvin 0 siblings, 0 replies; 22+ messages in thread From: H. Peter Anvin @ 2009-01-24 21:10 UTC (permalink / raw) To: Chris Lattner Cc: LLVM Developers Mailing List, Török Edwin, Thomas Gleixner, Linux Kernel Chris Lattner wrote: > > We would like to support some more specific cases (e.g. when tying a > pointer/int to a different size pointer/int) but we currently don't > intend to support all cases (e.g. tying a FP value to int). We are in > this position because the semantics are very vague and hard to reason > about (and change based on target endianness) and we had many subtle > bugs in the corner cases. > > Instead of having silent miscompiles, we decided to just reject all the > "hard" cases and add them back one by one as there is demand. That way > users could choose to modify their asms instead of having them be > potentially silently miscompiled. > The case that matters for the kernel is integer to integer, when a register is re-used from input to output. > LLVM 2.5 is in its release process right now, so it will not have > improvements in this area, but LLVM 2.6 certainly could. If there is > interest in building the kernel with 2.5, I think taking the patches > would be worthwhile. If that is hopeless anyway, waiting for the > LLVM-side fixes should be fine. The patches don't look all that bad to me, but I really want to make sure we don't keep littering the kernel with workarounds for N different compilers without getting a track to have them cleaned up. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-24 17:27 ` Ingo Molnar 2009-01-24 18:57 ` Török Edwin 2009-01-24 19:23 ` Chris Lattner @ 2009-01-27 19:42 ` Duncan Sands 2009-01-27 21:25 ` H. Peter Anvin 2 siblings, 1 reply; 22+ messages in thread From: Duncan Sands @ 2009-01-27 19:42 UTC (permalink / raw) To: llvmdev Cc: Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel, H. Peter Anvin Hi, > If yes then this doesnt look all that bad or invasive at first sight (if > the put_user() workaround can be expressed in a cleaner way), but in any > case it would be nice to hear an LLVM person's opinion about roughly when > this is going to be solved in LLVM itself. one thing that seems to be clear to everyone except me is... what are the semantics supposed to be? [My understanding is that what is being discussed is when you have an asm with a register as input and output, but with integer types of different width for the input and output, but I saw some mention of struct types in this thread...]. Presumably this is something obvious, but it would be good to have someone spell it out in small words that even someone like me can understand :) Thanks, Duncan. ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-27 19:42 ` Duncan Sands @ 2009-01-27 21:25 ` H. Peter Anvin 2009-01-28 1:45 ` Kyle Moffett 0 siblings, 1 reply; 22+ messages in thread From: H. Peter Anvin @ 2009-01-27 21:25 UTC (permalink / raw) To: Duncan Sands Cc: llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel Duncan Sands wrote: > Hi, > >> If yes then this doesnt look all that bad or invasive at first sight (if >> the put_user() workaround can be expressed in a cleaner way), but in any >> case it would be nice to hear an LLVM person's opinion about roughly when >> this is going to be solved in LLVM itself. > > one thing that seems to be clear to everyone except me is... what are the > semantics supposed to be? [My understanding is that what is being discussed > is when you have an asm with a register as input and output, but with integer > types of different width for the input and output, but I saw some mention of > struct types in this thread...]. Presumably this is something obvious, but > it would be good to have someone spell it out in small words that even someone > like me can understand :) > I don't know about struct types, but the situation I'm talking about is assembly statements of the form: asm("foo" : "=r" (bar) : "0" (baz)); Here, "bar" and "baz" are constrained to be in the same hardware register (from the "0" constraint in "baz"). The types of "bar" and "baz" are otherwise unrelated. I assume the difficulty here comes from how this needs to be handled from the point of view of the register allocator. If both types fit inside a single allocatable hardware register, the issue is trivial; "bar" and "baz" form a single logical register for the purpose of register allocation. However, things get a bit ugly in the case of different widths that affect individually scheduled registers, like 32- and 64-bit types on a 32-bit machine. Consider the case above where "bar" is a 64-bit type and "baz" is a 32-bit type, then you functionally have, at least on x86: uint64_t tmp = bar; asm("foo" : "+r" (tmp)); baz = (uint32_t)tmp; One could possibly argue that the latter case should be "baz = (uint32_t)(tmp >> 32);" on a bigendian machine... since this is a gcc syntax it probably should be "whatever gcc does" in that case, as opposed to what might make sense. (I'm afraid I don't have a bigendian box readily available at the moment, so I can't test it out to see what gcc does. I have a powerpc machine, but it's at home and turned off.) -hpa ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-27 21:25 ` H. Peter Anvin @ 2009-01-28 1:45 ` Kyle Moffett 2009-01-28 1:56 ` H. Peter Anvin 0 siblings, 1 reply; 22+ messages in thread From: Kyle Moffett @ 2009-01-28 1:45 UTC (permalink / raw) To: H. Peter Anvin Cc: Duncan Sands, llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel On Tue, Jan 27, 2009 at 4:25 PM, H. Peter Anvin <hpa@zytor.com> wrote: > However, things get a bit ugly in the case of different widths that affect > individually scheduled registers, like 32- and 64-bit types on a 32-bit > machine. Consider the case above where "bar" is a 64-bit type and "baz" is > a 32-bit type, then you functionally have, at least on x86: > > uint64_t tmp = bar; > asm("foo" : "+r" (tmp)); > baz = (uint32_t)tmp; > > One could possibly argue that the latter case should be > "baz = (uint32_t)(tmp >> 32);" on a bigendian machine... since this is a gcc > syntax it probably should be "whatever gcc does" in that case, as opposed to > what might make sense. > > (I'm afraid I don't have a bigendian box readily available at the moment, so > I can't test it out to see what gcc does. I have a powerpc machine, but > it's at home and turned off.) Actually, PPC64 boxes basically don't care... the usable GPRs are all either 32-bit (for PPC32) or 64-bit (for PPC64), the <=32-bit instructions are identical across both, they just truncate/sign-extend/etc based on the lower 32-bits of the register. Also, you would only do a right-shift if you were going all the way out to memory as 64-bit and all the way back in as 32-bit... within a single register it's kept coherent. Structs are basically irrelevant for inline ASM as you can't pass a struct to one... you can only pass the *address* of a struct, which is always pointer-sized. I think that really the only sane solution (which is hopefully what GCC does) for integer types is to use a register the same size as the larger of the two integers. Then you copy the value to/from the smaller register (or just mask it on PPC64-alike architectures) before or after the inline ASM. Cheers, Kyle Moffett ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-28 1:45 ` Kyle Moffett @ 2009-01-28 1:56 ` H. Peter Anvin 2009-01-28 13:28 ` Kyle Moffett 0 siblings, 1 reply; 22+ messages in thread From: H. Peter Anvin @ 2009-01-28 1:56 UTC (permalink / raw) To: Kyle Moffett Cc: Duncan Sands, llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel Kyle Moffett wrote: > > Actually, PPC64 boxes basically don't care... the usable GPRs are all > either 32-bit (for PPC32) or 64-bit (for PPC64), the <=32-bit > instructions are identical across both, they just > truncate/sign-extend/etc based on the lower 32-bits of the register. > Also, you would only do a right-shift if you were going all the way > out to memory as 64-bit and all the way back in as 32-bit... within a > single register it's kept coherent. > Think about a 64-bit integer on ppc32. It will by necessity kept in two registers. On gcc I believe it will always be a consecutive pair of registers (AFAIK that's a hard-coded assumption in gcc, with the result that gcc has a nonstandard internal register numbering for x86 since the commonly used dx:ax pair is actually registers 2:0 in the hardware numbering.) > Structs are basically irrelevant for inline ASM as you can't pass a > struct to one... you can only pass the *address* of a struct, which is > always pointer-sized. Right, of course. > I think that really the only sane solution (which is hopefully what > GCC does) for integer types is to use a register the same size as the > larger of the two integers. Then you copy the value to/from the > smaller register (or just mask it on PPC64-alike architectures) before > or after the inline ASM. Pretty much. Then you can do conventional copy propagation and elimination after expanding subregisters to get rid of the extra ops in the common case. -hpa ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-28 1:56 ` H. Peter Anvin @ 2009-01-28 13:28 ` Kyle Moffett 2009-01-28 17:29 ` H. Peter Anvin 0 siblings, 1 reply; 22+ messages in thread From: Kyle Moffett @ 2009-01-28 13:28 UTC (permalink / raw) To: H. Peter Anvin Cc: Duncan Sands, llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel On Tue, Jan 27, 2009 at 8:56 PM, H. Peter Anvin <hpa@zytor.com> wrote: > Kyle Moffett wrote: >> Actually, PPC64 boxes basically don't care... the usable GPRs are all >> either 32-bit (for PPC32) or 64-bit (for PPC64), the <=32-bit >> instructions are identical across both, they just >> truncate/sign-extend/etc based on the lower 32-bits of the register. >> Also, you would only do a right-shift if you were going all the way >> out to memory as 64-bit and all the way back in as 32-bit... within a >> single register it's kept coherent. > > Think about a 64-bit integer on ppc32. It will by necessity kept in two > registers. On gcc I believe it will always be a consecutive pair of > registers (AFAIK that's a hard-coded assumption in gcc, with the result that > gcc has a nonstandard internal register numbering for x86 since the commonly > used dx:ax pair is actually registers 2:0 in the hardware numbering.) Even in the 64-bit-integer on 32-bit-CPU case, you still end up with the lower 32-bits in a standard integer GPR, and it's trivial to just ignore the "upper" register. You also would not need to do any kind of bit-shift, so long as your inline assembly initializes both GPRs and puts the halves of the result where they belong. Cheers, Kyle Moffett ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-28 13:28 ` Kyle Moffett @ 2009-01-28 17:29 ` H. Peter Anvin 2009-01-28 19:27 ` Kyle Moffett 0 siblings, 1 reply; 22+ messages in thread From: H. Peter Anvin @ 2009-01-28 17:29 UTC (permalink / raw) To: Kyle Moffett Cc: Duncan Sands, llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel Kyle Moffett wrote: > > Even in the 64-bit-integer on 32-bit-CPU case, you still end up with > the lower 32-bits in a standard integer GPR, and it's trivial to just > ignore the "upper" register. You also would not need to do any kind > of bit-shift, so long as your inline assembly initializes both GPRs > and puts the halves of the result where they belong. > In this case, we're talking about what happens when the assembly takes a 64-bit input operand in the same register as a 32-bit output operand (with a "0" constraint.) Is the output operand the same register number as the high register or the low register? On an LE machine the answer is trivial and obvious -- the low register; on a BE machine both interpretations are possible (I actually suspect gcc will assign the high register, just based on how gcc internals work in this case.) -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-28 17:29 ` H. Peter Anvin @ 2009-01-28 19:27 ` Kyle Moffett 2009-01-28 20:59 ` H. Peter Anvin 0 siblings, 1 reply; 22+ messages in thread From: Kyle Moffett @ 2009-01-28 19:27 UTC (permalink / raw) To: H. Peter Anvin Cc: Duncan Sands, llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel On Wed, Jan 28, 2009 at 12:29 PM, H. Peter Anvin <hpa@zytor.com> wrote: > Kyle Moffett wrote: >> Even in the 64-bit-integer on 32-bit-CPU case, you still end up with >> the lower 32-bits in a standard integer GPR, and it's trivial to just >> ignore the "upper" register. You also would not need to do any kind >> of bit-shift, so long as your inline assembly initializes both GPRs >> and puts the halves of the result where they belong. > > In this case, we're talking about what happens when the assembly takes a > 64-bit input operand in the same register as a 32-bit output operand > (with a "0" constraint.) Is the output operand the same register number > as the high register or the low register? On an LE machine the answer > is trivial and obvious -- the low register; on a BE machine both > interpretations are possible (I actually suspect gcc will assign the > high register, just based on how gcc internals work in this case.) On a BE 32-bit machine, the "output register" technically ought to be "64-bit" anyways, since it's constrained to be the same as the 64-bit "input register". That means that you ought to make sure to set *both* output registers appropriately, one of them being 0 and the other being the 32-bit number. I think that's the only answer that actually makes any sense from a holistic code-generation sense. So it seems we are in violent agreement :-D. Cheers, Kyle Moffett ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: [LLVMdev] inline asm semantics: output constraint width smaller than input 2009-01-28 19:27 ` Kyle Moffett @ 2009-01-28 20:59 ` H. Peter Anvin 0 siblings, 0 replies; 22+ messages in thread From: H. Peter Anvin @ 2009-01-28 20:59 UTC (permalink / raw) To: Kyle Moffett Cc: Duncan Sands, llvmdev, Ingo Molnar, Török Edwin, Thomas Gleixner, Linux Kernel Kyle Moffett wrote: > > On a BE 32-bit machine, the "output register" technically ought to be > "64-bit" anyways, since it's constrained to be the same as the 64-bit > "input register". That means that you ought to make sure to set > *both* output registers appropriately, one of them being 0 and the > other being the 32-bit number. I think that's the only answer that > actually makes any sense from a holistic code-generation sense. So it > seems we are in violent agreement :-D. > No. This is wrong on two accounts. First of all, THERE ARE NO "TWO OUTPUT REGISTERS". Period. There is only one. The question is: which of the two *input* registers does it correspond to? Second of all, "making sense from a holistic code-generation sense" doesn't apply here. This is about mimicing a gcc construct, regardless of which amount of sense it makes. Therefore, the only thing that actually makes sense is to mimic gcc behavior, no matter how stupid it happens to be. -hpa ^ permalink raw reply [flat|nested] 22+ messages in thread
* Re: inline asm semantics: output constraint width smaller than input 2009-01-24 16:23 ` Török Edwin 2009-01-24 17:27 ` Ingo Molnar @ 2009-01-24 20:07 ` Andreas Schwab 1 sibling, 0 replies; 22+ messages in thread From: Andreas Schwab @ 2009-01-24 20:07 UTC (permalink / raw) To: Török Edwin Cc: Ingo Molnar, Thomas Gleixner, H. Peter Anvin, Linux Kernel, LLVM Developers Mailing List Török Edwin <edwintorok@gmail.com> writes: > @@ -239,11 +239,13 @@ extern void __put_user_8(void); > */ > #define put_user(x, ptr) \ > ({ \ > - int __ret_pu; \ > + __typeof__(*(ptr)) __ret_pu; \ > __typeof__(*(ptr)) __pu_val; \ > __chk_user_ptr(ptr); \ > might_fault(); \ > __pu_val = x; \ > + /* return value is 0 or -EFAULT, both fit in 1 byte, and \ > + * are sign-extendable to int */ \ That does not work when *ptr is unsigned (char or short). Andreas. -- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." ^ permalink raw reply [flat|nested] 22+ messages in thread
end of thread, other threads:[~2009-01-28 21:01 UTC | newest] Thread overview: 22+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2009-01-23 17:57 inline asm semantics: output constraint width smaller than input Török Edwin 2009-01-23 18:17 ` Ingo Molnar 2009-01-23 18:21 ` H. Peter Anvin 2009-01-23 18:27 ` Török Edwin 2009-01-23 18:30 ` Ingo Molnar 2009-01-23 18:52 ` Török Edwin 2009-01-23 20:42 ` Török Edwin 2009-01-24 16:23 ` Török Edwin 2009-01-24 17:27 ` Ingo Molnar 2009-01-24 18:57 ` Török Edwin 2009-01-24 21:25 ` [LLVMdev] " Mike Stump 2009-01-24 19:23 ` Chris Lattner 2009-01-24 21:10 ` H. Peter Anvin 2009-01-27 19:42 ` Duncan Sands 2009-01-27 21:25 ` H. Peter Anvin 2009-01-28 1:45 ` Kyle Moffett 2009-01-28 1:56 ` H. Peter Anvin 2009-01-28 13:28 ` Kyle Moffett 2009-01-28 17:29 ` H. Peter Anvin 2009-01-28 19:27 ` Kyle Moffett 2009-01-28 20:59 ` H. Peter Anvin 2009-01-24 20:07 ` Andreas Schwab
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