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opnsense-src/sys/powerpc/include
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Leandro Lupori e2d6c417e3 Implement superpages for PowerPC64 (HPT) 
This change adds support for transparent superpages for PowerPC64
systems using Hashed Page Tables (HPT). All pmap operations are
supported.

The changes were inspired by RISC-V implementation of superpages,
by @markj (r344106), but heavily adapted to fit PPC64 HPT architecture
and existing MMU OEA64 code.

While these changes are not better tested, superpages support is disabled by
default. To enable it, use vm.pmap.superpages_enabled=1.

In this initial implementation, when superpages are disabled, system
performance stays at the same level as without these changes. When
superpages are enabled, buildworld time increases a bit (~2%). However,
for workloads that put a heavy pressure on the TLB the performance boost
is much bigger (see HPC Challenge and pgbench on D25237).

Reviewed by:	jhibbits
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D25237
2020-11-06 14:12:45 +00:00
..
_align.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
_bus.h Regularize my copyright notice 2019-12-04 16:56:11 +00:00
_inttypes.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
_limits.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
_stdint.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
_types.h Do not include float interfaces when using libsa. 2018-02-23 04:04:25 +00:00
altivec.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
asm.h [PowerPC64LE] Fix AP spinup on powernv. 2020-09-23 01:56:26 +00:00
atomic.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
bat.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
bus.h Add missing assignment forgotten in r365899 2020-09-20 15:11:52 +00:00
bus_dma.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
clock.h
counter.h Centralize __pcpu definitions. 2019-08-29 07:25:27 +00:00
cpu.h powerpc: Add a CPU-custom machine check handler 2020-05-10 19:00:57 +00:00
cpufunc.h [POWERPC] Floating-Point Exception trap support 2020-11-06 13:34:30 +00:00
db_machdep.h [PowerPC] kernel ifunc support for powerpc*, fix ppc64 relocation oddities. 2020-05-07 19:32:49 +00:00
dbdma.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
dump.h [PPC64] Initial kernel minidump implementation 2019-10-14 13:04:04 +00:00
efi.h Fix building on i386 and arm. But 'public domain' headers on the files 2016-10-13 06:56:23 +00:00
elf.h [PowerPC64LE] Adjust ELF definitions for LE. 2020-09-13 17:36:43 +00:00
endian.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
exec.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
float.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
floatingpoint.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
fpu.h [POWERPC] Floating-Point Exception trap support 2020-11-06 13:34:30 +00:00
frame.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
gdb_machdep.h [PPC] Handle qOffsets packet 2019-12-16 13:17:39 +00:00
hid.h On POWER9 clear the HID0_RADIX before enabling the page tables 2018-05-26 04:33:19 +00:00
ieee.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
ieeefp.h Fix floating point exception definitions for powerpcspe 2018-07-24 22:04:56 +00:00
ifunc.h [PowerPC] Define powerpc IFUNC kernel/userspace ABI. 2019-12-24 20:13:29 +00:00
in_cksum.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
intr_machdep.h Add NUMA support to powerpc 2019-04-13 04:03:18 +00:00
kdb.h Expose stopped cpu contexts to ddb on PowerPC 2018-06-25 22:05:33 +00:00
limits.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
machdep.h powerpc: Axe PPC4xx support. 2020-03-18 01:09:43 +00:00
md_var.h Move vm_page_dump bitset array definition to MI code 2020-09-21 22:20:37 +00:00
memdev.h Add the MEM_EXTRACT_PADDR ioctl to /dev/mem. 2020-09-02 18:12:47 +00:00
metadata.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
minidump.h Sparsify the vm_page_dump bitmap 2020-09-21 22:21:59 +00:00
mmuvar.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
ofw_machdep.h powerpc: Fix the NUMA domain list on powernv 2020-01-18 01:26:54 +00:00
openpicreg.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
openpicvar.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
param.h [PowerPC64LE] Set up powerpc.powerpc64le architecture 2020-09-22 23:49:30 +00:00
pcb.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
pcpu.h powerpc: Add a (CPU/runtime features) flags set to pcpu struct 2020-06-06 02:40:52 +00:00
pcpu_aux.h Centralize __pcpu definitions. 2019-08-29 07:25:27 +00:00
pio.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
platform.h powerpc: Fix the NUMA domain list on powernv 2020-01-18 01:26:54 +00:00
platformvar.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
pmap.h Implement superpages for PowerPC64 (HPT) 2020-11-06 14:12:45 +00:00
pmc_mdep.h [PowerPC] hwpmc: add support for POWER8/9 PMCs 2020-11-05 16:36:39 +00:00
proc.h Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead. 2020-09-27 18:47:06 +00:00
procctl.h amd64 KPTI: add control from procctl(2). 2019-03-16 11:44:33 +00:00
profile.h powerpc: Axe PPC4xx support. 2020-03-18 01:09:43 +00:00
psl.h [POWERPC] Floating-Point Exception trap support 2020-11-06 13:34:30 +00:00
pte.h Implement superpages for PowerPC64 (HPT) 2020-11-06 14:12:45 +00:00
ptrace.h Added ptrace support for reading/writing powerpc VSX registers 2018-06-02 19:17:11 +00:00
reg.h Use uintptr_t instead of register_t * for the stack base. 2019-12-03 23:17:54 +00:00
reloc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
resource.h powerpc/booke: Simplify the MPC85XX PCIe root complex driver 2019-10-24 03:51:33 +00:00
rtas.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
runq.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
sc_machdep.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
setjmp.h
sigframe.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
signal.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
slb.h Implement superpages for PowerPC64 (HPT) 2020-11-06 14:12:45 +00:00
smp.h Add NUMA support to powerpc 2019-04-13 04:03:18 +00:00
spr.h Fix powerpc and powerpcspe builds 2020-11-05 20:18:00 +00:00
sr.h powerpc64: Implement Radix MMU for POWER9 CPUs 2020-05-11 02:33:37 +00:00
stack.h
stdarg.h Use standard pattern for stdargs.h 2018-02-12 14:48:05 +00:00
sysarch.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
tlb.h powerpc: Axe PPC4xx support. 2020-03-18 01:09:43 +00:00
trap.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
ucontext.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
vdso.h [PowerPC] Implement VDSO timebase access on powerpc* 2020-09-08 03:00:31 +00:00
vm.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
vmparam.h Implement superpages for PowerPC64 (HPT) 2020-11-06 14:12:45 +00:00