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b535d1fc |
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08-Dec-2018 |
Christoph Hellwig <hch@lst.de> |
sparc: move the leon PCI memory space comment to <asm/leon.h> It has nothing to do with the content of the pci.h header. Suggested by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: David S. Miller <davem@davemloft.net>
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#
8119f042 |
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16-Nov-2018 |
Rob Herring <robh@kernel.org> |
sparc: Remove unused leon_trans_init The function leon_trans_init is unused. Remove it and save us from figuring out what to do with a '<NULL>' node name. Cc: "David S. Miller" <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
b2441318 |
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01-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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>
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#
f05a6865 |
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16-May-2014 |
Sam Ravnborg <sam@ravnborg.org> |
sparc: drop use of extern for prototypes in arch/sparc/include/asm Drop extern for all prototypes and adjust alignment of parameters as required after the removal. In a few rare cases adjust linelength to conform to maximum 80 chars, and likewise in a few rare cases adjust alignment of parameters to static functions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
e8e2bfd1 |
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01-Jul-2013 |
Andreas Larsson <andreas@gaisler.com> |
sparc32, leon: Require separate snoop tags set to regard snooping to be enabled Even if data snooping is enabled, without separate snoop tags snooping will not work when the MMU is enabled. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
1ffbc51a |
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10-Jun-2013 |
Andreas Larsson <andreas@gaisler.com> |
sparc32, leon: Remove separate "ticker" timer for SMP This reduces the need from two timers to one timer. Moreover, without this patch, when the "ticker" timer triggers timer_cs_read via tick_periodic it reads the value of the usual timer it can get an wrapped timer value without timer_cs_internal_counter having been updated leading to the clock going backwards. This effectively hangs one cpu that gets stuck in update_wall_time with an offset slightly smaller than 0xffffffffffffffff. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
d884297a |
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26-Jul-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: drop leon_init() This function was only used to set of_pdt_build_more to leon_node_init(). But the leon_node_init() was a nop as prom_amba_init was never assigned. Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
e49e6ff5 |
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29-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc: fix sparc64 build due to leon.h inclusion Stephen Rothwell <sfr@canb.auug.org.au> reported following error: In file included from arch/sparc/kernel/prom_common.c:26:0: arch/sparc/include/asm/leon.h:221:9: error: unknown type name 'irq_flow_handler_t' arch/sparc/include/asm/leon.h:224:10: error: unknown type name 'irq_flow_handler_t' Fix this by: 1) Avoid including leon.h in prom_commen.h (not needed) 2) Include irq.h in leon.h to avoid the missing symbol error Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
805918f8 |
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25-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32: srmmu_probe now knows about leon too Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
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#
31079488 |
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25-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: always include leon_smp + leon_mm in build Fix-up leon specific assembler to use ASI_LEON_MMUREGS Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
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#
5561cd26 |
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25-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: always include leon_kernel in build Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
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#
93bb32f6 |
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25-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: clean up leon.h - Drop unused stuff accumulated over time - Drop non-leon stuff - Include almost all of the header unconditionally Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
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#
f6678d3b |
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19-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: remove duplicate definitions in leon.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Konrad Eisele <konrad@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
123521e4 |
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19-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: remove duplicate UART register definitions The registers are defined in leon_amba too. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Konrad Eisele <konrad@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
28b7723b |
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19-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32,leon: move leon ASI definitions to asi.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Konrad Eisele <konrad@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
08c9388f |
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14-May-2012 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32: remove remaining users of btfixup Use sparc_config to hold the last two function pointers. There was no point generating dedicated _ops structures only for these. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
f0a2bc7e |
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20-Apr-2012 |
Thomas Gleixner <tglx@linutronix.de> |
sparc: Use generic idle thread allocation Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Tested-by: David S. Miller <davem@davemloft.net> Link: http://lkml.kernel.org/r/20120420124558.055198736@linutronix.de
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#
62f08283 |
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04-Apr-2012 |
Tkhai Kirill <tkhai@yandex.ru> |
sparc32: generic clockevent support The kernel uses l14 timers as clockevents. l10 timer is used as clocksource if platform master_l10_counter isn't constantly zero. The clocksource is continuous, so it's possible to use high resolution timers. l10 timer is also used as clockevent on UP configurations. This realization is for sun4m, sun4d, sun4c, microsparc-IIep and LEON platforms. The appropriate LEON changes was made by Konrad Eisele. In case of sun4m's oneshot mode, profile irq is zeroed in smp4m_percpu_timer_interrupt(). It is maybe needless (double, triple etc overflow does nothing). sun4d is able to have oneshot mode too, but I haven't any way to test it. So code of its percpu timer handler is made as much equal to the current code as possible. The patch is tested on sun4m box in SMP mode by me, and tested by Konrad on leon in up mode (leon smp is broken atm - due to other reasons). Signed-off-by: Tkhai Kirill <tkhai@yandex.ru> Tested-by: Konrad Eisele <konrad@gaisler.com> [leon up] [sam: revised patch to provide generic support for leon] Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
5d07b786 |
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23-May-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
sparc32,leon: add GRPCI2 PCI Host driver The DMA region must be accessible in order for PCI peripheral drivers to work, the sparc32 has DMA in the normal memory zone which requires the GRPCI2 to PCI target BARs so that all kernel low mem (192MB) can be mapped 1:1 to PCI address space. The GRPCI2 has resizeable target BARs, by default the first is made 256MB and all other BARs are disabled. I/O space are always located on 0x1000-0x10000, but accessed through the GRPCI2 PCI I/O Window memory mapped to virtual address space. Configuration space is accessed through the 64KB GRPCI2 PCI CFG Window using LDA bypassing the MMU. The GRPCI2 has a single PCI Window for prefetchable and non- prefetchable address space, it is up to the AHB master requesting PCI data to determine access type. Memory space is mapped 1:1. The GRPCI2 core can be configured in 4 different IRQ modes, where PCI Interrupt, Error Interrupt and DMA Interrupt are shared on a single IRQ line or at most 5 IRQs are used. The GRPCI2 can mask/unmask PCI interrupts, Err and DMA in the control and check status bits which tells us which IRQ really happended. The GENIRQ layer is used to unmask/mask each individual IRQ source by creating virtual IRQs and implementing a IRQ chip. The optional DMA functionality of the GRPCI2 is not supported by this patch. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
1ca0c808 |
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01-May-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
sparc32,leon: Implemented SMP IPIs for LEON CPU This patch implements SMP IPIs on LEON using software generated IRQs to signal between CPUs. The IPI IRQ number is set by using the ipi_num property in the device tree, or defaults to 13. LEON SMP systems should reserve IRQ 13 (and IRQ 15) to Linux in order for the defaults to work. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
9c2853af |
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21-Apr-2011 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32: probe for cpu info only during startup We did a cpu_probe() call each time a CPU got online - which only effect was to save latest CPU/FPU info for use by show_cpuinfo(). Use same setup as for sparc64 where we probe for this info during startup, and only once. This allowed us to annotate a few functions __init which again fixed the following section mismatch warnings: WARNING: vmlinux.o(.text+0x65f0): Section mismatch in reference from the function set_cpu_and_fpu() to the (unknown reference) .init.rodata:(unknown) WARNING: vmlinux.o(.text+0x65f8): Section mismatch in reference from the function set_cpu_and_fpu() to the (unknown reference) .init.rodata:(unknown) WARNING: vmlinux.o(.text+0x664c): Section mismatch in reference from the function set_cpu_and_fpu() to the variable .init.rodata:manufacturer_info WARNING: vmlinux.o(.text+0x6650): Section mismatch in reference from the function set_cpu_and_fpu() to the variable .init.rodata:manufacturer_info Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
ea044ec3 |
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19-Apr-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
sparc32,leon: cleaned away code from the LEON2 days Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
2cf95304 |
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19-Apr-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
sparc32,leon: per-cpu ticker use genirq per-cpu handler Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
4c6773c3 |
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19-Apr-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
sparc32,leon: add support for extended interrupt controller The extended IRQ controller gives the LEON 16 more IRQs. The patch installs a custom handler for the exetended controller IRQ, where a register is read and the "real" IRQ causing IRQ is determined. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
a2a211cb |
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25-Feb-2011 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32: fix build with leon or floppy enabled Add a few includes back required to build with floppy enabled Fix declaration of trapbase_cpu* so it is now consistent Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
e2305e37 |
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03-Jan-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
SPARC/LEON: added support for IRQAMP IRQ Controller Needed for LEON AMP systems where different CPUs are routed to different IRQ controllers. This patch selects the IRQ Controller which has been routed to the boot CPU, it is up to the boot loader to configure the IRQ controller. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
4309e568 |
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15-Nov-2009 |
Kristoffer Glembo <kristoffer@gaisler.com> |
Added sparc_leon3_snooping_enabled() and converted extern inline to static inline Signed-off-by: David S. Miller <davem@davemloft.net>
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#
8401707f |
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31-Aug-2009 |
Konrad Eisele <konrad@gaisler.com> |
sparc,leon: Sparc-Leon SMP support Support SMP for a Sparc-Leon multiprocessor system. Add Leon specific SMP code to arch/sparc/kernel/leon_smp.c. Signed-off-by: Konrad Eisele <konrad@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
5213a780 |
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16-Aug-2009 |
Konrad Eisele <konrad@gaisler.com> |
sparc,leon: CONFIG_SPARC_LEON option and leon specific files. The macro CONFIG_SPARC_LEON will shield, if undefined, the sun-sparc code from LEON specific code. In particular include/asm/leon.h will get empty through #ifdef and leon_kernel.c and leon_mm.c will not be compiled. Signed-off-by: Konrad Eisele <konrad@gaisler.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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