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OpenCloudOS-Kernel/arch/sparc/lib/copy_page.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 */
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
/* clear_page.S: UltraSparc optimized copy page.
*
* Copyright (C) 1996, 1998, 1999, 2000, 2004 David S. Miller (davem@redhat.com)
* Copyright (C) 1997 Jakub Jelinek (jakub@redhat.com)
*/
#include <asm/visasm.h>
#include <asm/thread_info.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/spitfire.h>
#include <asm/head.h>
sparc: move exports to definitions Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-17 10:39:30 +08:00
#include <asm/export.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
/* What we used to do was lock a TLB entry into a specific
* TLB slot, clear the page with interrupts disabled, then
* restore the original TLB entry. This was great for
* disturbing the TLB as little as possible, but it meant
* we had to keep interrupts disabled for a long time.
*
* Now, we simply use the normal TLB loading mechanism,
* and this makes the cpu choose a slot all by itself.
* Then we do a normal TLB flush on exit. We need only
* disable preemption during the clear.
*/
#define DCACHE_SIZE (PAGE_SIZE * 2)
sparc64: Remove 4MB and 512K base page size options. Adrian Bunk reported that enabling 4MB page size breaks the build. The problem is that MAX_ORDER combined with the page shift exceeds the SECTION_SIZE_BITS we use in asm-sparc64/sparsemem.h There are several ways I suppose we could work around this. For one we could define a CONFIG_FORCE_MAX_ZONEORDER to decrease MAX_ORDER in these higher page size cases. But I also know that these page size cases are broken wrt. TLB miss handling especially on pre-hypervisor systems, and there isn't an easy way to fix that. These options were meant to be fun experimental hacks anyways, and only 8K and 64K make any sense to support. So remove 512K and 4M base page size support. Of course, we still support these page sizes for huge pages. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18 14:43:55 +08:00
#if (PAGE_SHIFT == 13)
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
#define PAGE_SIZE_REM 0x80
sparc64: Remove 4MB and 512K base page size options. Adrian Bunk reported that enabling 4MB page size breaks the build. The problem is that MAX_ORDER combined with the page shift exceeds the SECTION_SIZE_BITS we use in asm-sparc64/sparsemem.h There are several ways I suppose we could work around this. For one we could define a CONFIG_FORCE_MAX_ZONEORDER to decrease MAX_ORDER in these higher page size cases. But I also know that these page size cases are broken wrt. TLB miss handling especially on pre-hypervisor systems, and there isn't an easy way to fix that. These options were meant to be fun experimental hacks anyways, and only 8K and 64K make any sense to support. So remove 512K and 4M base page size support. Of course, we still support these page sizes for huge pages. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18 14:43:55 +08:00
#elif (PAGE_SHIFT == 16)
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
#define PAGE_SIZE_REM 0x100
#else
#error Wrong PAGE_SHIFT specified
#endif
#define TOUCH(reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7) \
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %reg0, %f48; fsrc2 %reg1, %f50; \
fsrc2 %reg2, %f52; fsrc2 %reg3, %f54; \
fsrc2 %reg4, %f56; fsrc2 %reg5, %f58; \
fsrc2 %reg6, %f60; fsrc2 %reg7, %f62;
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
.text
.align 32
.globl copy_user_page
.type copy_user_page,#function
sparc: move exports to definitions Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-17 10:39:30 +08:00
EXPORT_SYMBOL(copy_user_page)
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
copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */
lduw [%g6 + TI_PRE_COUNT], %o4
sparc64: Make PAGE_OFFSET variable. Choose PAGE_OFFSET dynamically based upon cpu type. Original UltraSPARC-I (spitfire) chips only supported a 44-bit virtual address space. Newer chips (T4 and later) support 52-bit virtual addresses and up to 47-bits of physical memory space. Therefore we have to adjust PAGE_SIZE dynamically based upon the capabilities of the chip. Note that this change alone does not allow us to support > 43-bit physical memory, to do that we need to re-arrange our page table support. The current encodings of the pmd_t and pgd_t pointers restricts us to "32 + 11" == 43 bits. This change can waste quite a bit of memory for the various tables. In particular, a future change should work to size and allocate kern_linear_bitmap[] and sparc64_valid_addr_bitmap[] dynamically. This isn't easy as we really cannot take a TLB miss when accessing kern_linear_bitmap[]. We'd have to lock it into the TLB or similar. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Bob Picco <bob.picco@oracle.com>
2013-09-21 12:50:41 +08:00
sethi %hi(PAGE_OFFSET), %g2
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
sethi %hi(PAGE_SIZE), %o3
sparc64: Make PAGE_OFFSET variable. Choose PAGE_OFFSET dynamically based upon cpu type. Original UltraSPARC-I (spitfire) chips only supported a 44-bit virtual address space. Newer chips (T4 and later) support 52-bit virtual addresses and up to 47-bits of physical memory space. Therefore we have to adjust PAGE_SIZE dynamically based upon the capabilities of the chip. Note that this change alone does not allow us to support > 43-bit physical memory, to do that we need to re-arrange our page table support. The current encodings of the pmd_t and pgd_t pointers restricts us to "32 + 11" == 43 bits. This change can waste quite a bit of memory for the various tables. In particular, a future change should work to size and allocate kern_linear_bitmap[] and sparc64_valid_addr_bitmap[] dynamically. This isn't easy as we really cannot take a TLB miss when accessing kern_linear_bitmap[]. We'd have to lock it into the TLB or similar. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Bob Picco <bob.picco@oracle.com>
2013-09-21 12:50:41 +08:00
ldx [%g2 + %lo(PAGE_OFFSET)], %g2
[SPARC64]: Deal with PTE layout differences in SUN4V. Yes, you heard it right, they changed the PTE layout for SUN4V. Ho hum... This is the simple and inefficient way to support this. It'll get optimized, don't worry. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-12 13:57:54 +08:00
sethi %hi(PAGE_KERNEL_LOCKED), %g3
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
[SPARC64]: Deal with PTE layout differences in SUN4V. Yes, you heard it right, they changed the PTE layout for SUN4V. Ho hum... This is the simple and inefficient way to support this. It'll get optimized, don't worry. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-12 13:57:54 +08:00
ldx [%g3 + %lo(PAGE_KERNEL_LOCKED)], %g3
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
sub %o0, %g2, %g1 ! dest paddr
sub %o1, %g2, %g2 ! src paddr
and %o2, %o3, %o0 ! vaddr D-cache alias bit
or %g1, %g3, %g1 ! dest TTE data
or %g2, %g3, %g2 ! src TTE data
sethi %hi(TLBTEMP_BASE), %o3
sethi %hi(DCACHE_SIZE), %o1
add %o0, %o3, %o0 ! dest TTE vaddr
add %o4, 1, %o2
add %o0, %o1, %o1 ! src TTE vaddr
/* Disable preemption. */
mov TLB_TAG_ACCESS, %g3
stw %o2, [%g6 + TI_PRE_COUNT]
/* Load TLB entries. */
rdpr %pstate, %o2
wrpr %o2, PSTATE_IE, %pstate
stxa %o0, [%g3] ASI_DMMU
stxa %g1, [%g0] ASI_DTLB_DATA_IN
membar #Sync
stxa %o1, [%g3] ASI_DMMU
stxa %g2, [%g0] ASI_DTLB_DATA_IN
membar #Sync
wrpr %o2, 0x0, %pstate
[SPARC64]: Kill BRANCH_IF_ANY_CHEETAH() from copy page. Just patch the branch at boot time instead. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-31 02:26:15 +08:00
cheetah_copy_page_insn:
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
ba,pt %xcc, 9f
nop
1:
VISEntryHalf
membar #StoreLoad | #StoreStore | #LoadStore
sethi %hi((PAGE_SIZE/64)-2), %o2
mov %o0, %g1
prefetch [%o1 + 0x000], #one_read
or %o2, %lo((PAGE_SIZE/64)-2), %o2
prefetch [%o1 + 0x040], #one_read
prefetch [%o1 + 0x080], #one_read
prefetch [%o1 + 0x0c0], #one_read
ldd [%o1 + 0x000], %f0
prefetch [%o1 + 0x100], #one_read
ldd [%o1 + 0x008], %f2
prefetch [%o1 + 0x140], #one_read
ldd [%o1 + 0x010], %f4
prefetch [%o1 + 0x180], #one_read
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f0, %f16
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
ldd [%o1 + 0x018], %f6
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f2, %f18
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
ldd [%o1 + 0x020], %f8
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f4, %f20
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
ldd [%o1 + 0x028], %f10
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f6, %f22
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
ldd [%o1 + 0x030], %f12
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f8, %f24
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
ldd [%o1 + 0x038], %f14
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f10, %f26
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
ldd [%o1 + 0x040], %f0
1: ldd [%o1 + 0x048], %f2
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f12, %f28
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
ldd [%o1 + 0x050], %f4
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f14, %f30
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
stda %f16, [%o0] ASI_BLK_P
ldd [%o1 + 0x058], %f6
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f0, %f16
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
ldd [%o1 + 0x060], %f8
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f2, %f18
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
ldd [%o1 + 0x068], %f10
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f4, %f20
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
ldd [%o1 + 0x070], %f12
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f6, %f22
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
ldd [%o1 + 0x078], %f14
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f8, %f24
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
ldd [%o1 + 0x080], %f0
prefetch [%o1 + 0x180], #one_read
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f10, %f26
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
subcc %o2, 1, %o2
add %o0, 0x40, %o0
bne,pt %xcc, 1b
add %o1, 0x40, %o1
ldd [%o1 + 0x048], %f2
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f12, %f28
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
ldd [%o1 + 0x050], %f4
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f14, %f30
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
stda %f16, [%o0] ASI_BLK_P
ldd [%o1 + 0x058], %f6
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f0, %f16
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
ldd [%o1 + 0x060], %f8
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f2, %f18
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
ldd [%o1 + 0x068], %f10
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f4, %f20
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
ldd [%o1 + 0x070], %f12
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f6, %f22
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
add %o0, 0x40, %o0
ldd [%o1 + 0x078], %f14
sparc64: Consistently use fsrc2 rather than fmovd in optimized asm. Because fsrc2, unlike fmovd, does not update the %fsr register. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 16:25:23 +08:00
fsrc2 %f8, %f24
fsrc2 %f10, %f26
fsrc2 %f12, %f28
fsrc2 %f14, %f30
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
stda %f16, [%o0] ASI_BLK_P
membar #Sync
VISExitHalf
ba,pt %xcc, 5f
nop
9:
VISEntry
ldub [%g6 + TI_FAULT_CODE], %g3
mov %o0, %g1
cmp %g3, 0
rd %asi, %g3
be,a,pt %icc, 1f
wr %g0, ASI_BLK_P, %asi
wr %g0, ASI_BLK_COMMIT_P, %asi
1: ldda [%o1] ASI_BLK_P, %f0
add %o1, 0x40, %o1
ldda [%o1] ASI_BLK_P, %f16
add %o1, 0x40, %o1
sethi %hi(PAGE_SIZE), %o2
1: TOUCH(f0, f2, f4, f6, f8, f10, f12, f14)
ldda [%o1] ASI_BLK_P, %f32
stda %f48, [%o0] %asi
add %o1, 0x40, %o1
sub %o2, 0x40, %o2
add %o0, 0x40, %o0
TOUCH(f16, f18, f20, f22, f24, f26, f28, f30)
ldda [%o1] ASI_BLK_P, %f0
stda %f48, [%o0] %asi
add %o1, 0x40, %o1
sub %o2, 0x40, %o2
add %o0, 0x40, %o0
TOUCH(f32, f34, f36, f38, f40, f42, f44, f46)
ldda [%o1] ASI_BLK_P, %f16
stda %f48, [%o0] %asi
sub %o2, 0x40, %o2
add %o1, 0x40, %o1
cmp %o2, PAGE_SIZE_REM
bne,pt %xcc, 1b
add %o0, 0x40, %o0
sparc64: Remove 4MB and 512K base page size options. Adrian Bunk reported that enabling 4MB page size breaks the build. The problem is that MAX_ORDER combined with the page shift exceeds the SECTION_SIZE_BITS we use in asm-sparc64/sparsemem.h There are several ways I suppose we could work around this. For one we could define a CONFIG_FORCE_MAX_ZONEORDER to decrease MAX_ORDER in these higher page size cases. But I also know that these page size cases are broken wrt. TLB miss handling especially on pre-hypervisor systems, and there isn't an easy way to fix that. These options were meant to be fun experimental hacks anyways, and only 8K and 64K make any sense to support. So remove 512K and 4M base page size support. Of course, we still support these page sizes for huge pages. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18 14:43:55 +08:00
#if (PAGE_SHIFT == 16)
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
TOUCH(f0, f2, f4, f6, f8, f10, f12, f14)
ldda [%o1] ASI_BLK_P, %f32
stda %f48, [%o0] %asi
add %o1, 0x40, %o1
sub %o2, 0x40, %o2
add %o0, 0x40, %o0
TOUCH(f16, f18, f20, f22, f24, f26, f28, f30)
ldda [%o1] ASI_BLK_P, %f0
stda %f48, [%o0] %asi
add %o1, 0x40, %o1
sub %o2, 0x40, %o2
add %o0, 0x40, %o0
membar #Sync
stda %f32, [%o0] %asi
add %o0, 0x40, %o0
stda %f0, [%o0] %asi
#else
membar #Sync
stda %f0, [%o0] %asi
add %o0, 0x40, %o0
stda %f16, [%o0] %asi
#endif
membar #Sync
wr %g3, 0x0, %asi
VISExit
5:
stxa %g0, [%g1] ASI_DMMU_DEMAP
membar #Sync
sethi %hi(DCACHE_SIZE), %g2
stxa %g0, [%g1 + %g2] ASI_DMMU_DEMAP
membar #Sync
retl
stw %o4, [%g6 + TI_PRE_COUNT]
.size copy_user_page, .-copy_user_page
[SPARC64]: Kill BRANCH_IF_ANY_CHEETAH() from copy page. Just patch the branch at boot time instead. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-31 02:26:15 +08:00
.globl cheetah_patch_copy_page
cheetah_patch_copy_page:
sethi %hi(0x01000000), %o1 ! NOP
sethi %hi(cheetah_copy_page_insn), %o0
or %o0, %lo(cheetah_copy_page_insn), %o0
stw %o1, [%o0]
membar #StoreStore
flush %o0
retl
nop