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opnsense-src/sys/powerpc/include
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John Baldwin 5159d50a1e Simplify swi for bus_dma. 
When a DMA request using bounce pages completes, a swi is triggered to
schedule pending DMA requests using the just-freed bounce pages.  For
a long time this bus_dma swi has been tied to a "virtual memory" swi
(swi_vm).  However, all of the swi_vm implementations are the same and
consist of checking a flag (busdma_swi_pending) which is always true
and if set calling busdma_swi.  I suspect this dates back to the
pre-SMPng days and that the intention was for swi_vm to serve as a
mux.  However, in the current scheme there's no need for the mux.

Instead, remove swi_vm and vm_ih.  Each bus_dma implementation that
uses bounce pages is responsible for creating its own swi (busdma_ih)
which it now schedules directly.  This swi invokes busdma_swi directly
removing the need for busdma_swi_pending.

One consequence is that the swi now works on RISC-V which had previously
failed to invoke busdma_swi from swi_vm.

Reviewed by:	imp, kib
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D33447

(cherry picked from commit 254e4e5b77)
2022-04-29 14:27:47 -07:00
..
_align.h
_bus.h Regularize my copyright notice 2019-12-04 16:56:11 +00:00
_inttypes.h
_limits.h
_stdint.h
_types.h
altivec.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
asm.h Add CFI start/end proc directives to arm64, i386, and ppc 2020-12-05 00:33:28 +00:00
atomic.h powerpc: Fix syntax atomic.h 2022-03-02 14:08:33 -08:00
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 Rename struct device to struct _device 2021-04-19 14:17:08 -04:00
clock.h
counter.h
cpu.h Simplify swi for bus_dma. 2022-04-29 14:27:47 -07:00
cpufunc.h [PowerPC] Floating-point exception trap followup 2020-12-13 03:58:43 +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
dump.h minidump: Use the provided dump bitset 2021-12-03 10:02:03 -04:00
efi.h
elf.h [PowerPC64LE] Adjust ELF definitions for LE. 2020-09-13 17:36:43 +00:00
endian.h Consolidate machine/endian.h definitions 2021-06-24 20:42:56 -03:00
exec.h
float.h
floatingpoint.h
fpu.h [POWERPC] Floating-Point Exception trap support 2020-11-06 13:34:30 +00:00
frame.h
gdb_machdep.h gdb: report specific stop reason for watchpoints 2021-04-21 10:20:33 -03:00
hid.h
ieee.h
ieeefp.h
ifunc.h [PowerPC] Define powerpc IFUNC kernel/userspace ABI. 2019-12-24 20:13:29 +00:00
in_cksum.h netinet: Remove in_cksum_update() 2021-12-01 07:41:55 -05:00
intr_machdep.h
kdb.h Introduce kdb-level watchpoint functions 2021-04-21 10:20:33 -03:00
limits.h
machdep.h powerpc: Axe PPC4xx support. 2020-03-18 01:09:43 +00:00
md_var.h Simplify swi for bus_dma. 2022-04-29 14:27:47 -07:00
memdev.h Add the MEM_EXTRACT_PADDR ioctl to /dev/mem. 2020-09-02 18:12:47 +00:00
metadata.h
minidump.h Sparsify the vm_page_dump bitmap 2020-09-21 22:21:59 +00:00
mmuvar.h minidump: Use the provided dump bitset 2021-12-03 10:02:03 -04:00
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 [PowerPC64LE] Fix LE VSX/fpr interop 2020-12-03 01:39:59 +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
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
pmap.h powerpc64: fix OFWFB with Radix MMU 2021-11-05 11:08:27 -03:00
pmc_mdep.h [PowerPC] hwpmc: add support for POWER8/9 PMCs 2020-11-05 16:36:39 +00:00
proc.h arm64, powerpc: fix calculation of 'used' in GET_STACK_USAGE 2021-12-07 14:13:47 -04:00
procctl.h
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
reg.h powerpc: Make machine/reg.h self-contained 2021-12-06 08:55:57 -07:00
reloc.h
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
sc_machdep.h
setjmp.h
sigframe.h
signal.h
slb.h Implement superpages for PowerPC64 (HPT) 2020-11-06 14:12:45 +00:00
smp.h
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
sysarch.h
tlb.h powerpc: Axe PPC4xx support. 2020-03-18 01:09:43 +00:00
tls.h Add <machine/tls.h> header to hold MD constants and helpers for TLS. 2022-04-29 13:50:05 -07:00
trap.h powerpc: clean up empty lines in .c and .h files 2020-09-01 21:20:08 +00:00
ucontext.h
vdso.h [PowerPC] Implement VDSO timebase access on powerpc* 2020-09-08 03:00:31 +00:00
vm.h Create VM_MEMATTR_DEVICE on all architectures 2021-06-13 16:49:36 +01:00
vmparam.h Implement superpages for PowerPC64 (HPT) 2020-11-06 14:12:45 +00:00