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linux/arch/sparc/mm/viking.S

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
sparc: remove CVS keywords This patch removes the CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-20 07:53:02 +08:00
/*
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
* viking.S: High speed Viking cache/mmu operations
*
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@ultra.linux.cz)
* Copyright (C) 1999 Pavel Semerad (semerad@ss1000.ms.mff.cuni.cz)
*/
#include <asm/ptrace.h>
#include <asm/psr.h>
kbuild: arm26,sparc use generic asm-offset support Rename all includes to use asm-offsets.h to match generic name Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-10 02:35:55 +08:00
#include <asm/asm-offsets.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/asi.h>
#include <asm/mxcc.h>
#include <asm/page.h>
#include <asm/pgtsrmmu.h>
#include <asm/viking.h>
#ifdef CONFIG_SMP
.data
.align 4
sun4dsmp_flush_tlb_spin:
.word 0
#endif
.text
.align 4
.globl viking_flush_cache_all, viking_flush_cache_mm
.globl viking_flush_cache_range, viking_flush_cache_page
.globl viking_flush_page, viking_mxcc_flush_page
.globl viking_flush_page_for_dma, viking_flush_page_to_ram
.globl viking_flush_sig_insns
.globl viking_flush_tlb_all, viking_flush_tlb_mm
.globl viking_flush_tlb_range, viking_flush_tlb_page
viking_flush_page:
sethi %hi(PAGE_OFFSET), %g2
sub %o0, %g2, %g3
srl %g3, 12, %g1 ! ppage >> 12
clr %o1 ! set counter, 0 - 127
sethi %hi(PAGE_OFFSET + PAGE_SIZE - 0x80000000), %o3
sethi %hi(0x80000000), %o4
sethi %hi(VIKING_PTAG_VALID), %o5
sethi %hi(2*PAGE_SIZE), %o0
sethi %hi(PAGE_SIZE), %g7
clr %o2 ! block counter, 0 - 3
5:
sll %o1, 5, %g4
or %g4, %o4, %g4 ! 0x80000000 | (set << 5)
sll %o2, 26, %g5 ! block << 26
6:
or %g5, %g4, %g5
ldda [%g5] ASI_M_DATAC_TAG, %g2
cmp %g3, %g1 ! ptag == ppage?
bne 7f
inc %o2
andcc %g2, %o5, %g0 ! ptag VALID?
be 7f
add %g4, %o3, %g2 ! (PAGE_OFFSET + PAGE_SIZE) | (set << 5)
ld [%g2], %g3
ld [%g2 + %g7], %g3
add %g2, %o0, %g2
ld [%g2], %g3
ld [%g2 + %g7], %g3
add %g2, %o0, %g2
ld [%g2], %g3
ld [%g2 + %g7], %g3
add %g2, %o0, %g2
ld [%g2], %g3
b 8f
ld [%g2 + %g7], %g3
7:
cmp %o2, 3
ble 6b
sll %o2, 26, %g5 ! block << 26
8: inc %o1
cmp %o1, 0x7f
ble 5b
clr %o2
9: retl
nop
viking_mxcc_flush_page:
sethi %hi(PAGE_OFFSET), %g2
sub %o0, %g2, %g3
sub %g3, -PAGE_SIZE, %g3 ! ppage + PAGE_SIZE
sethi %hi(MXCC_SRCSTREAM), %o3 ! assume %hi(MXCC_SRCSTREAM) == %hi(MXCC_DESTSTREAM)
mov 0x10, %g2 ! set cacheable bit
or %o3, %lo(MXCC_SRCSTREAM), %o2
or %o3, %lo(MXCC_DESSTREAM), %o3
sub %g3, MXCC_STREAM_SIZE, %g3
6:
stda %g2, [%o2] ASI_M_MXCC
stda %g2, [%o3] ASI_M_MXCC
andncc %g3, PAGE_MASK, %g0
bne 6b
sub %g3, MXCC_STREAM_SIZE, %g3
9: retl
nop
viking_flush_cache_page:
viking_flush_cache_range:
#ifndef CONFIG_SMP
[PATCH] sparc32: vm_area_struct access for old Sun SPARCs. Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange vm_area_struct for fewer cache misses") changed the layout of the vm_area_struct structure, it broke several SPARC32 assembly routines which used numerical constants for accessing the vm_mm field. This patch defines the VMA_VM_MM constant to replace the immediate values. Signed-off-by: Olivier DANET <odanet@caramail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-11 04:56:10 +08:00
ld [%o0 + VMA_VM_MM], %o0
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#endif
viking_flush_cache_mm:
#ifndef CONFIG_SMP
ld [%o0 + AOFF_mm_context], %g1
cmp %g1, -1
bne viking_flush_cache_all
nop
b,a viking_flush_cache_out
#endif
viking_flush_cache_all:
WINDOW_FLUSH(%g4, %g5)
viking_flush_cache_out:
retl
nop
viking_flush_tlb_all:
mov 0x400, %g1
retl
sta %g0, [%g1] ASI_M_FLUSH_PROBE
viking_flush_tlb_mm:
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o1
lda [%g1] ASI_M_MMUREGS, %g5
#ifndef CONFIG_SMP
cmp %o1, -1
be 1f
#endif
mov 0x300, %g2
sta %o1, [%g1] ASI_M_MMUREGS
sta %g0, [%g2] ASI_M_FLUSH_PROBE
retl
sta %g5, [%g1] ASI_M_MMUREGS
#ifndef CONFIG_SMP
1: retl
nop
#endif
viking_flush_tlb_range:
[PATCH] sparc32: vm_area_struct access for old Sun SPARCs. Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange vm_area_struct for fewer cache misses") changed the layout of the vm_area_struct structure, it broke several SPARC32 assembly routines which used numerical constants for accessing the vm_mm field. This patch defines the VMA_VM_MM constant to replace the immediate values. Signed-off-by: Olivier DANET <odanet@caramail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-11 04:56:10 +08:00
ld [%o0 + VMA_VM_MM], %o0
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
#ifndef CONFIG_SMP
cmp %o3, -1
be 2f
#endif
sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4
sta %o3, [%g1] ASI_M_MMUREGS
and %o1, %o4, %o1
add %o1, 0x200, %o1
sta %g0, [%o1] ASI_M_FLUSH_PROBE
1: sub %o1, %o4, %o1
cmp %o1, %o2
blu,a 1b
sta %g0, [%o1] ASI_M_FLUSH_PROBE
retl
sta %g5, [%g1] ASI_M_MMUREGS
#ifndef CONFIG_SMP
2: retl
nop
#endif
viking_flush_tlb_page:
[PATCH] sparc32: vm_area_struct access for old Sun SPARCs. Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange vm_area_struct for fewer cache misses") changed the layout of the vm_area_struct structure, it broke several SPARC32 assembly routines which used numerical constants for accessing the vm_mm field. This patch defines the VMA_VM_MM constant to replace the immediate values. Signed-off-by: Olivier DANET <odanet@caramail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-11 04:56:10 +08:00
ld [%o0 + VMA_VM_MM], %o0
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
#ifndef CONFIG_SMP
cmp %o3, -1
be 1f
#endif
and %o1, PAGE_MASK, %o1
sta %o3, [%g1] ASI_M_MMUREGS
sta %g0, [%o1] ASI_M_FLUSH_PROBE
retl
sta %g5, [%g1] ASI_M_MMUREGS
#ifndef CONFIG_SMP
1: retl
nop
#endif
viking_flush_page_to_ram:
viking_flush_page_for_dma:
viking_flush_sig_insns:
retl
nop
#ifdef CONFIG_SMP
.globl sun4dsmp_flush_tlb_all, sun4dsmp_flush_tlb_mm
.globl sun4dsmp_flush_tlb_range, sun4dsmp_flush_tlb_page
sun4dsmp_flush_tlb_all:
sethi %hi(sun4dsmp_flush_tlb_spin), %g3
1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
tst %g5
bne 2f
mov 0x400, %g1
sta %g0, [%g1] ASI_M_FLUSH_PROBE
retl
stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
2: tst %g5
bne,a 2b
ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
b,a 1b
sun4dsmp_flush_tlb_mm:
sethi %hi(sun4dsmp_flush_tlb_spin), %g3
1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
tst %g5
bne 2f
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o1
lda [%g1] ASI_M_MMUREGS, %g5
mov 0x300, %g2
sta %o1, [%g1] ASI_M_MMUREGS
sta %g0, [%g2] ASI_M_FLUSH_PROBE
sta %g5, [%g1] ASI_M_MMUREGS
retl
stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
2: tst %g5
bne,a 2b
ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
b,a 1b
sun4dsmp_flush_tlb_range:
sethi %hi(sun4dsmp_flush_tlb_spin), %g3
1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
tst %g5
bne 3f
mov SRMMU_CTX_REG, %g1
[PATCH] sparc32: vm_area_struct access for old Sun SPARCs. Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange vm_area_struct for fewer cache misses") changed the layout of the vm_area_struct structure, it broke several SPARC32 assembly routines which used numerical constants for accessing the vm_mm field. This patch defines the VMA_VM_MM constant to replace the immediate values. Signed-off-by: Olivier DANET <odanet@caramail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-11 04:56:10 +08:00
ld [%o0 + VMA_VM_MM], %o0
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4
sta %o3, [%g1] ASI_M_MMUREGS
and %o1, %o4, %o1
add %o1, 0x200, %o1
sta %g0, [%o1] ASI_M_FLUSH_PROBE
2: sub %o1, %o4, %o1
cmp %o1, %o2
blu,a 2b
sta %g0, [%o1] ASI_M_FLUSH_PROBE
sta %g5, [%g1] ASI_M_MMUREGS
retl
stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
3: tst %g5
bne,a 3b
ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
b,a 1b
sun4dsmp_flush_tlb_page:
sethi %hi(sun4dsmp_flush_tlb_spin), %g3
1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
tst %g5
bne 2f
mov SRMMU_CTX_REG, %g1
[PATCH] sparc32: vm_area_struct access for old Sun SPARCs. Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange vm_area_struct for fewer cache misses") changed the layout of the vm_area_struct structure, it broke several SPARC32 assembly routines which used numerical constants for accessing the vm_mm field. This patch defines the VMA_VM_MM constant to replace the immediate values. Signed-off-by: Olivier DANET <odanet@caramail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-11 04:56:10 +08:00
ld [%o0 + VMA_VM_MM], %o0
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
and %o1, PAGE_MASK, %o1
sta %o3, [%g1] ASI_M_MMUREGS
sta %g0, [%o1] ASI_M_FLUSH_PROBE
sta %g5, [%g1] ASI_M_MMUREGS
retl
stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
2: tst %g5
bne,a 2b
ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
b,a 1b
nop
#endif