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Ard Biesheuvel 95731b8ee6 ARM: 9059/1: cache-v7: get rid of mini-stack 
Now that we have reduced the number of registers that we need to
preserve when calling v7_invalidate_l1 from the boot code, we can use
scratch registers to preserve the remaining ones, and get rid of the
mini stack entirely. This works around any issues regarding cache
behavior in relation to the uncached accesses to this memory, which is
hard to get right in the general case (i.e., both bare metal and under
virtualization)

While at it, switch v7_invalidate_l1 to using ip as a scratch register
instead of r4. This makes the function AAPCS compliant, and removes the
need to stash r4 in ip across the call.

Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2021-03-09 10:25:18 +00:00
..
abort-ev4.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev4t.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev5t.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev5tj.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev6.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev7.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-lv4t.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-macro.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-nommu.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
alignment.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
cache-b15-rac.c
ARM: mm: Remove virtual address print from B15 RAC driver
2020-05-06 11:12:12 -07:00
cache-fa.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cache-feroceon-l2.c
ARM: 8416/1: Feroceon: use of_iomap() to map register base
2015-08-18 14:00:30 +01:00
cache-l2x0-pmu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
cache-l2x0.c
ARM: 9007/1: l2c: fix prefetch bits init in L2X0_AUX_CTRL using DT values
2020-09-15 14:35:53 +01:00
cache-nop.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cache-tauros2.c
ARM: l2c: tauros2: use descriptive definitions for register bits
2015-11-26 22:12:26 +00:00
cache-tauros3.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 171
2019-05-30 11:26:39 -07:00
cache-uniphier.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
cache-v4.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cache-v4wb.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cache-v4wt.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cache-v6.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cache-v7.S
ARM: 9059/1: cache-v7: get rid of mini-stack
2021-03-09 10:25:18 +00:00
cache-v7m.S
sched/rt, ARM: Use CONFIG_PREEMPTION
2019-12-08 14:37:32 +01:00
cache-xsc3l2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
context.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
copypage-fa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
copypage-feroceon.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
copypage-v4mc.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
copypage-v4wb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
copypage-v4wt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
copypage-v6.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
copypage-xsc3.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
copypage-xscale.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
dma-mapping-nommu.c
dma-mapping: split <linux/dma-mapping.h>
2020-10-06 07:07:03 +02:00
dma-mapping.c
dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h>
2020-10-06 07:07:06 +02:00
dma.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dump.c
ARM: 9053/1: arm/mm/ptdump:Add address markers for KASAN regions
2021-02-01 19:48:06 +00:00
extable.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fault-armv.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
fault.c
mm/arm: use general page fault accounting
2020-08-12 10:58:03 -07:00
fault.h
ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes
2019-08-23 11:39:34 +01:00
flush.c
mm: introduce compound_nr()
2019-09-24 15:54:08 -07:00
fsr-2level.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fsr-3level.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hugetlbpage.c
mm: remove unneeded includes of <asm/pgalloc.h>
2020-08-07 11:33:26 -07:00
idmap.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
init.c
ARM updates for 5.11:
2020-12-22 13:34:27 -08:00
iomap.c
ARM: 8923/1: mm: include <asm/vga.h> for vga_base
2019-10-31 16:58:54 +00:00
ioremap.c
mm: pgtable: add shortcuts for accessing kernel PMD and PTE
2020-06-09 09:39:13 -07:00
kasan_init.c
ARM: 9016/2: Initialize the mapping of KASan shadow memory
2020-10-27 12:11:10 +00:00
Kconfig
ARM: drop efm32 platform
2021-01-15 17:42:10 +01:00
l2c-common.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
l2c-l2x0-resume.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Makefile
ARM updates for 5.11:
2020-12-22 13:34:27 -08:00
mm.h
mm: pgtable: add shortcuts for accessing kernel PMD and PTE
2020-06-09 09:39:13 -07:00
mmap.c
arm: Use the generic devmem_is_allowed()
2020-12-11 12:28:24 -08:00
mmu.c
ARM: 9054/1: arch/arm/mm/mmu.c: Remove duplicate header
2021-02-01 19:48:06 +00:00
nommu.c
arm: remove ioremap_cached
2019-11-11 17:19:40 +01:00
pabort-legacy.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pabort-v6.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pabort-v7.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pageattr.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
pgd.c
ARM: 9016/2: Initialize the mapping of KASan shadow memory
2020-10-27 12:11:10 +00:00
physaddr.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pmsa-v7.c
arch, drivers: replace for_each_membock() with for_each_mem_range()
2020-10-13 18:38:35 -07:00
pmsa-v8.c
arch, drivers: replace for_each_membock() with for_each_mem_range()
2020-10-13 18:38:35 -07:00
proc-arm7tdmi.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm9tdmi.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm720.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm740.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm920.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm922.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm925.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm926.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm940.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm946.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm1020.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm1020e.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm1022.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-arm1026.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-fa526.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-feroceon.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-macros.S
ARM: 8982/1: mm: Simplify act_mm macro
2020-07-21 16:33:36 +01:00
proc-mohawk.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-sa110.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-sa1100.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-syms.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
proc-v6.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-v7-2level.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
proc-v7-3level.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
proc-v7-bugs.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
proc-v7.S
ARM: 9059/1: cache-v7: get rid of mini-stack
2021-03-09 10:25:18 +00:00
proc-v7m.S
ARM: 8933/1: replace Sun/Solaris style flag on section directive
2019-11-15 22:21:19 +00:00
proc-xsc3.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
proc-xscale.S
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
ptdump_debugfs.c
arm: dump: no need to check return value of debugfs_create functions
2019-06-03 15:49:07 +02:00
pv-fixup-asm.S
ARM: 9012/1: move device tree mapping out of linear region
2020-10-27 12:11:01 +00:00
tcm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
tlb-fa.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tlb-v4.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tlb-v4wb.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tlb-v4wbi.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tlb-v6.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tlb-v7.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00