- Apr 08, 2015
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Maciej W. Rozycki authored
Move CFC1/CTC1 emulation code to separate functions to avoid excessive indentation in forthcoming changes. Adjust formatting in a minor way and remove extraneous round brackets. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9682/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
GCC is smart enough to substitute the final result for FLS calculations as implemented in the fallback C code we have in `__fls' and `fls' applied to constant values. The presence of inline asm defeats the compiler though, forcing it to emit extraneous CLZ/DCLZ calculation for processors that support these instructions. Use `__builtin_constant_p' then to avoid inline asm altogether for constants. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9681/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Commit 56a64733 [MIPS: math-emu: Switch to using the MIPS rounding modes.] removed the distinction between hardware and emulator rounding mode encodings, the hardware encoding is now used in emulation as well. Complement the change and remove the `modeindex' macro previously used for indexing into encoding translation tables, it now does nothing and only obfuscates code by reinserting the value extracted from FCSR. Adjust comments accordingly. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9680/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Fold a nested `if' statement for the R6 case in `do_ri' into its containing `if' block, removing excessive indentation causing code to extend beyond 79 columns. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9679/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Use `static inline' rather than `static __maybe_unused' for `mipsr2_decoder' in the empty case, making inlining explicit where it will happen anyway. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9678/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Commit 46490b57 [MIPS: kernel: elf: Improve the overall ABI and FPU mode checks] reduced `get_fp_abi' to an elaborate pass-through. Drop it then. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9677/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9676/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Correct a copy-and-paste issue with the description for `movf_func' referring to `movt_func'. Reformat the former function to match the latter. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9675/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Correct the double-tab indentation of the branch-likely not-taken case. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9674/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Reword the comment for `__cpu_has_fpu' to make it unambiguous this code is for external floating-point units only, generally MIPS I processors using the original CP1 hardware interface. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9673/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Adjust the explanatory comment for FPU emulator traps according to ba3049ed [MIPS: Switch FPU emulator trap to BREAK instruction.]; originally coming from `do_ade'. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9672/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Add the remaining missing comments for IEEE 754 special value array indices. Reindent macro definitions for consistency. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9671/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
IEEE754_SPCVAL_NMIN denotes the index into the special value array where the closest to zero negative normal number expressible is stored. Similarly IEEE754_SPCVAL_NMIND denotes such index for the closest to zero negative subnormal number expressible. Make comments match that. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9670/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Reindent CP0 Cause macros for a single space after #define, leaving extra indentation for individual Interrupt Pending bits as with CP0 Status register's Interrupt Mask bits. [ralf@linux-mips.org: Fix conflict.] [ralf@linux-mips.org: Fix indentation of the CAUSEB_FDCI and CAUSEF_FDCI definitions.] Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9669/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
TX39 CP0 Configuration Register 3 macro definitions have been randomly thrown in the middle of a block of CP0 Status register value macros. Move them to the end of the whole CP0 register value macro block, complementing the location of the TX39 Cache register name macro at the end of the CP0 register name macro block. [ralf@linux-mips.org: Fix conflict.] Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9668/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Originally CP1 macros were placed between CP0 register name macros and CP0 register value macros. As changes were applied to the header the position of CP1 macros gradually has become more and more arbitrary and two separate blocks were created. This may only cause confusion. Move them out of the way then and place together after all the CP0 macros. No semantic change. [ralf@linux-mips.org: Fix conflict.] Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9667/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Remove a duplicate FPU Status Register reference that has been there since forever and a mistakenly copied and pasted R4xx0 manual reference. [ralf@linux-mips.org: Fix conflict.] Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9666/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
The MIPS port has supported this option since forever, long before SH was even in plans. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9665/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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- Apr 02, 2015
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
So let's remove everythig that only make sense for a kernel module and build the thing unconditionally. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
So let's remove everything that only makes sense for kernel modules. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
So let's remove everything that only makes sense for kernel modules. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
This simplifies code a lot by dropping many per-revision-group functions. There are still some paths left that use uncommon NVRAM read helpers or fill arrays. They will need to be handled in separated patch. I've tested this (by printing SPROM content) for regressions on: 1) BCM4704 (SPROM revision 2) 2) BCM4706 (SPROM revision 8 plus 11 & 9 on extra WiFi cards) The only difference is not reading board_type from SPROM rev 11 which is unsupported and treated as rev 1. This change for rev 1 is expected. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9660/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
Handling many SPROM revisions became messy, we have tons of functions specific to various revision groups which are quite hard to track. For years there is yet another revision 11 asking for support, but adding it in current the form would make things even worse. To resolve this problem let's add new function with table-like entries that will contain revision bitmask for every SPROM variable. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9659/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Wu Zhangjin authored
!CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and the corrospindig strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves about 1280 bytes. [ralf@linux-mips.org: Resolved reject.] Signed-off-by:
Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/1898/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9656/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9655/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Daniel Walter authored
Replace sscanf() with mac_pton(). [ralf@linux-mips.org: Resolved conflict.] Signed-off-by:
Daniel Walter <dwalter@google.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7151/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rickard Strandqvist authored
Remove the function proc_dolasatint() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by:
Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8868/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
When dealing with whole flash content (bcm47xx_nvram_init_from_mem) we need to find NVRAM start trying various partition sizes (nvram_sizes). This is not needed when using MTD as we have direct partition access. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9652/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
For years Broadcom devices use 64 KiB NVRAM partition size and some of them indeed have it filled in more than 50%. This change allows reading whole NVRAM e.g. on Netgear WNDR4500 and Netgear R8000. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9651/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Rafał Miłecki authored
We use IO functions like readl & ioremap_nocache, so include linux/io.h Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9650/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Maciej W. Rozycki authored
Fix the 74K D-cache alias erratum workaround so that it actually works. Our current code sets MIPS_CACHE_VTAG for the D-cache, but that flag only has any effect for the I-cache. Additionally MIPS_CACHE_PINDEX is set for the D-cache if CP0.Config7.AR is also set for an affected processor, leading to confusing information in the bootstrap log (the flag isn't used beyond that). So delete the setting of MIPS_CACHE_VTAG and rely on MIPS_CACHE_ALIASES, set in a common place, removing I-cache coherency issues seen in GDB testing with software breakpoints, gdbserver and ptrace(2), on affected systems. While at it add a little piece of explanation of what CP0.Config6.SYND is so that people do not have to chase documentation. Signed-off-by:
Maciej W. Rozycki <macro@codesourcery.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8507/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Guenter Roeck authored
MIPS architecture code does not provide copy_user_page, so it should not provide a prototype for it either. Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9266/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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- Apr 01, 2015
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Huacai Chen authored
This add south-bridge (SB700/SB710/SB800 chipset) ACPI platform driver for Loongson-3. This will be used by EC (Embedded Controller, used by laptops) driver and STR (Suspend To RAM). [ralf@linux-mips.org: Fix build error if !CONFIG_CPU_LOONGSON3. Build doesn't like it if no obj-* variable is defined at all in a Makefile. Obviously this has not been tested on other platforms.] Signed-off-by:
Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9619/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Huacai Chen authored
This add CPU Hwmon (temperature sensor) platform driver for Loongson-3. Signed-off-by:
Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9617/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Huacai Chen authored
This patch enable hardware performance counter support for Loongson-3's perf events. Signed-off-by:
Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9618/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Joshua Kinard authored
On SGI Origin 2k/Onyx2 and SGI Octane systems, there can exist multiple PCI buses attached to the Xtalk bus. The current code will stop counting PCI buses after it finds the first one. If one installs the optional PCI cardcage ("shoebox") into these systems, because of the order of the Xtalk widgets, the current PCI code will find the cardcage first, and fail to detect the BaseIO PCI devices, which are on a higher Xtalk widget ID. This patch adds the hooks needed for resolving this issue in the IP27 PCI code (in a later patch). Verified on both an SGI Onyx2 and an SGI Octane. Signed-off-by:
Joshua Kinard <kumba@gentoo.org> Cc: Linux MIPS List <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/9074/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Joe Perches authored
Use the normal return values for bool functions Signed-off-by:
Joe Perches <joe@perches.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9640/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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