Mitchell Horne ffedb98b3e RISC-V: expose extension bits in AT_HWCAP ... AT_HWCAP is a field in the elf auxiliary vector meant to describe cpu-specific hardware features. For RISC-V we want to use this to indicate the presence of any standard extensions supported by the CPU. This allows userland applications to query the system for supported extensions using elf_aux_info(3). Support for an extension is indicated by the presence of its corresponding bit in AT_HWCAP -- e.g. systems supporting the 'c' extension (compressed instructions) will have the second bit set. Extensions advertised through AT_HWCAP are only those that are supported by all harts in the system. Reviewed by: jhb, markj Approved by: markj (mentor) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20493		2019-06-11 00:55:54 +00:00
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_align.h
_bus.h
_inttypes.h
_limits.h
_stdint.h
_types.h	Do not include float interfaces when using libsa.	2018-02-23 04:04:25 +00:00
asm.h	Fix global pointer relaxations in the RISC-V kernel	2019-06-09 15:43:38 +00:00
atomic.h	Implement atomic_swap_{int,long,ptr}(9).	2018-08-07 18:56:51 +00:00
bus_dma_impl.h	Provide a template for busdma code for RISC-V.	2019-05-07 13:41:43 +00:00
bus_dma.h	Provide a template for busdma code for RISC-V.	2019-05-07 13:41:43 +00:00
bus.h
clock.h
counter.h	Back pcpu zone with domain correct pages	2018-07-06 02:06:03 +00:00
cpu.h	RISC-V: Implement get_cyclecount(9).	2018-11-13 18:20:27 +00:00
cpufunc.h	Provide a template for busdma code for RISC-V.	2019-05-07 13:41:43 +00:00
db_machdep.h
dump.h
efi.h
elf.h	RISC-V: expose extension bits in AT_HWCAP	2019-06-11 00:55:54 +00:00
encoding.h	Add RISC-V instructions encoding.	2018-08-13 16:07:18 +00:00
endian.h
exec.h
float.h
floatingpoint.h
fpe.h	Various fixes for floating point on RISC-V.	2018-09-19 23:45:18 +00:00
frame.h	Replace uses of sbadaddr with stval.	2018-12-19 17:52:09 +00:00
ieeefp.h
in_cksum.h
intr.h	o Add driver for PLIC (Platform-Level Interrupt Controller) device.	2018-06-12 17:45:15 +00:00
kdb.h	Various fixes for TLB management on RISC-V.	2018-10-15 18:56:54 +00:00
machdep.h
md_var.h	RISC-V: expose extension bits in AT_HWCAP	2019-06-11 00:55:54 +00:00
memdev.h
minidump.h
ofw_machdep.h
param.h	Implement transparent 2MB superpage promotion for RISC-V.	2019-02-13 17:19:37 +00:00
pcb.h	Implement per-CPU pmap activation tracking for RISC-V.	2019-02-13 17:50:01 +00:00
pcpu.h	Fix global pointer relaxations in the RISC-V kernel	2019-06-09 15:43:38 +00:00
pmap.h	Add kernel support for Intel userspace protection keys feature on	2019-02-20 09:51:13 +00:00
pmc_mdep.h
proc.h
procctl.h	amd64 KPTI: add control from procctl(2).	2019-03-16 11:44:33 +00:00
profile.h	SPDX: Consider code from Carnegie-Mellon University.	2017-11-30 15:48:35 +00:00
psl.h
pte.h	Implement transparent 2MB superpage promotion for RISC-V.	2019-02-13 17:19:37 +00:00
ptrace.h
reg.h
reloc.h
resource.h
riscvreg.h	Optimize RISC-V copyin(9)/copyout(9) routines.	2019-01-21 19:38:53 +00:00
runq.h
sbi.h	Various fixes for TLB management on RISC-V.	2018-10-15 18:56:54 +00:00
setjmp.h	Fix setjmp for RISC-V:	2018-07-23 09:54:28 +00:00
sf_buf.h
sigframe.h	Follow arm[32] and sparc64 KAPI and provide the FreeBSD standard spelling	2019-01-29 20:10:27 +00:00
signal.h
smp.h	o Add driver for PLIC (Platform-Level Interrupt Controller) device.	2018-06-12 17:45:15 +00:00
stack.h
stdarg.h	Use standard pattern for stdargs.h	2018-02-12 14:48:05 +00:00
sysarch.h
trap.h
ucontext.h
vdso.h
vm.h
vmparam.h	Implement transparent 2MB superpage promotion for RISC-V.	2019-02-13 17:19:37 +00:00