- 02 8月, 2018 3 次提交
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由 Christoph Hellwig 提交于
Almost all architectures include it. Add a ARCH_NO_PREEMPT symbol to disable preempt support for alpha, hexagon, non-coldfire m68k and user mode Linux. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
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由 Christoph Hellwig 提交于
Move the source of lib/Kconfig.debug and arch/$(ARCH)/Kconfig.debug to the top-level Kconfig. For two architectures that means moving their arch-specific symbols in that menu into a new arch Kconfig.debug file, and for a few more creating a dummy file so that we can include it unconditionally. Also move the actual 'Kernel hacking' menu to lib/Kconfig.debug, where it belongs. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
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由 Christoph Hellwig 提交于
Instead of duplicating the source statements in every architecture just do it once in the toplevel Kconfig file. Note that with this the inclusion of arch/$(SRCARCH/Kconfig moves out of the top-level Kconfig into arch/Kconfig so that don't violate ordering constraits while keeping a sensible menu structure. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
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- 02 7月, 2018 1 次提交
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由 Greg Ungerer 提交于
Booting a ColdFire m68k core with MMU enabled causes a "bad page state" oops since commit 1d40a5ea ("mm: mark pages in use for page tables"): BUG: Bad page state in process sh pfn:01ce2 page:004fefc8 count:0 mapcount:-1024 mapping:00000000 index:0x0 flags: 0x0() raw: 00000000 00000000 00000000 fffffbff 00000000 00000100 00000200 00000000 raw: 039c4000 page dumped because: nonzero mapcount Modules linked in: CPU: 0 PID: 22 Comm: sh Not tainted 4.17.0-07461-g1d40a5ea #13 Fix by calling pgtable_page_dtor() in our __pte_free_tlb() code path, so that the PG_table flag is cleared before we free the pte page. Note that I had to change the type of pte_free() to be static from extern. Otherwise you get a lot of warnings like this: ./arch/m68k/include/asm/mcf_pgalloc.h:80:2: warning: ‘pgtable_page_dtor’ is static but used in inline function ‘pte_free’ which is not static pgtable_page_dtor(page); ^ And making it static is consistent with our use of this in the other m68k pgalloc definitions of pte_free(). Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> CC: Matthew Wilcox <willy@infradead.org> Reviewed-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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- 31 5月, 2018 1 次提交
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由 Finn Thain 提交于
This avoids a WARNING splat when loading the macsonic or macmace driver. Please see commit 205e1b7f ("dma-mapping: warn when there is no coherent_dma_mask"). This implementation of arch_setup_pdev_archdata() differs from the powerpc one, in that this one avoids clobbering a device dma mask which has already been initialized. Cc: Christoph Hellwig <hch@lst.de> Cc: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Acked-by: NGreg Ungerer <gerg@linux-m68k.org> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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- 28 5月, 2018 14 次提交
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由 Greg Ungerer 提交于
The ColdFire PCI configuration space access functions swap addressing regions to do their work. Just letting the read/write cycles exit the CPU core (via the ColdFire "nop" instruction) is not enough to guarantee that the address region remapping has actually completed. Insert a read back of the mapping register to be absolutely sure that the remapping has completed. This fixes an occasional boot hang during the ColdFire PCI initialization phase. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
A lot of the ColdFire internal peripherals (clocks, timers, interrupt controllers, etc) are addressed using constants. The only problem with that is they are not type clean when used with __raw_read/__raw_write and read/write - they should be of type "void __iomem". This isn't a problem currently because the IO access functions are local macros. To switch to using the asm-generic implementations of these we need to clean up the types. Otherwise you get warnings like this: In file included from ./arch/m68k/include/asm/mcfsim.h:24:0, from arch/m68k/coldfire/intc-simr.c:20: arch/m68k/coldfire/intc-simr.c: In function ‘init_IRQ’: ./arch/m68k/include/asm/m520xsim.h:40:29: warning: passing argument 2 of ‘__raw_writeb’ makes pointer from integer without a cast [-Wint-conversion] #define MCFINTC0_SIMR (MCFICM_INTC0 + MCFINTC_SIMR) ^ arch/m68k/coldfire/intc-simr.c:182:21: note: in expansion of macro ‘MCFINTC0_SIMR’ __raw_writeb(0xff, MCFINTC0_SIMR); ^ In file included from ./arch/m68k/include/asm/io_no.h:120:0, from ./arch/m68k/include/asm/io.h:3, from ./include/linux/io.h:25, from ./include/linux/irq.h:25, from ./include/asm-generic/hardirq.h:13, from ./arch/m68k/include/asm/hardirq.h:25, from ./include/linux/hardirq.h:9, from ./include/linux/interrupt.h:13, from arch/m68k/coldfire/intc-simr.c:16: ./include/asm-generic/io.h:71:22: note: expected ‘volatile void *’ but argument is of type ‘unsigned int’ #define __raw_writeb __raw_writeb ^ ./include/asm-generic/io.h:72:20: note: in expansion of macro ‘__raw_writeb’ static inline void __raw_writeb(u8 value, volatile void __iomem *addr) ^ To start this clean up process introduce a macro, iomem(), that converts a constant address to the correct "void __iomem *" type. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
Up to now we have only had support for the PCI bus when running the ColdFire CPU family with the MMU enabled. The only reason for this was the incomplete state of the IO remapping and access functions when running with the MMU disabled. Recent fixes and improvements to the ColdFire IO access code means we can now support the PCI bus when running non-MMU enabled as well. So modify the configuration support to allow it to be selected no matter what choice of MMU mode is used. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
The ColdFire SoC internal peripherals are mapped into virtual address space using the ACR registers of the cache control unit. This means we are using a 1:1 physical:virtual mapping for them that does not rely on page table mappings. We can quickly determine if we are accessing an internal peripheral device given the physical or vitrual address using the same range check. The implications of this mapping is that an ioremap should return the physical address as the virtual mapping __iomem cookie as well. So fix ioremap() to deal with this on ColdFire. Of course you need to take care of this in the iounmap() path as well. Reported-by: NAngelo Dureghello <angelo@sysam.it> Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
We need to treat built-in peripherals and bus based address ranges differently. Local built-in peripherals (and the ColdFire SoC parts have quite a lot of them) are always native endian - which is big endian on m68k/ColdFire. Bus based address ranges, like the PCI bus, are accessed little endian - so we need to byte swap those. So implement readw/writew and readl/writel functions to deal with memory mapped accesses correctly based on the address range being accessed. This fixes readw/writew and readl/writel so that they can be used in drivers for native SoC hardware modules (many of which are shared with other architectures (ARM in Freescale SoC parts for example). And also drivers for PCI devices. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
Some ColdFire platforms do have real PCI buses, so we should not be re-defining or otherwise mangling the IO access functions for them. So when CONFIG_PCI is true use the real io.h support. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
All the ColdFire IO access support code has been moved to io_no.h. This means that all ColdFire support is at least now consistent no matter whether the MMU is enabled or not for them. Now that io_mm.h has reverted to only support the traditional m68k MMU enabled processors we can remove the ColdFire specific definitions. We can also remove the old ColdFire PCI bus IO access functions. The new io_no.h uses asm-generic/io.h to provide all the basic support. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
Use the io_no.h IO access support for all ColdFire systems, no matter whether configured with MMU enabled or disabled. Previously there was subtle differences in IO access functions used in both cases, and these resulted in broken behavior for some drivers. As observed and reported by Angelo when using MMU enabled systems the read/write family of functions was using little endian access, while the non-MMU enabled systems were using native endian. This results in drivers that are shared across Freescale processors (for some of the common internal SoC peripherals) not working - since they are wired up for native endian access. This problem brings to light issues with PCI bus access and local peripheral access - but these are not addressed with this fix. Reported-by: NAngelo Dureghello <angelo@sysam.it> Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
Ultimately we want the ColdFire IO access support to be consisent no matter whether it is configured with MMU enabled or disabled. To acheive that we need to get all the ColdFire IO access support code together in one place, in this case io_no.h. The last big piece not in io_no.h is the PCI bus support functions. Define the IO mapping addresses required to use the asm-generic IO access functions. They can provide everything we need - no need for us to duplicate or have local in/out or read/write access functions. Note that this support is not active yet, since we haven't done the full switch over to using the asm-generic functions yet. And also note that we do not yet remove the old PCI functions from io_mm.h yet. Consolodating all this IO access support in a single place will make it easier in the future to enable PCI bus support for non-MMU enabled ColdFire (which we currently cannot do). Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
Create a new header file, kmap.h, that groups all the definitions and functions associated with the io mapping and remapping. Currently the functions are spread across raw_io.h and io_mm.h. And in the future we will want to use these in io_no.h as well. So it makes sense to move them all together into a single header file. It is named after the arch/m68k/mm/kmap.c file that actually implements many of the exported functions. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
The primary and fundamental access macros are really the __raw versions. So make them the actual implementation for access, and not the read/write access macros. The read/write macros and functions are built on top of the raw access (with byte swapping or other actions as required). This in itself causes no functional change right now. But it will make it easier to fix and resolve problems with PCI bus access in the future. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
There is nothing really special about the non-MMU m68k IO access functions. So we can easily switch to using the asm-generic/io.h functions. The only thing we do need to handle is that historically the m68k IO access functions for readw/readl/writew/writel use native CPU endian ordering. So for us on m68k/ColdFire that means they are big-endian. Leave the existing set of _raw_read/__raw_write and read/write macros in place to deal with them. (They are ripe for later cleanup, but that is for another patch). Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
The non-MMU and ColdFire IO access functions will be moving to using the asm-generic/io.h in the near future. To make that possible we need define guards around the m68k specific virt_to_phys() and phys_to_virt() functions. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NGeert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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由 Greg Ungerer 提交于
Move a copy of the definitions of the *_relaxed() macros into io_no.h and io_mm.h. This precedes a change to the io_no.h file to use asm-generic/io.h. They will be removed from io_no.h at that point. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org> Reviewed-by: NGeert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: NAngelo Dureghello <angelo@sysam.it> Tested-by: NAngelo Dureghello <angelo@sysam.it>
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- 24 5月, 2018 1 次提交
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由 Michael Schmitz 提交于
If 020/030 support is enabled, get_io_area() leaves an IO_SIZE gap between mappings which is added to the vm_struct representing the mapping. __ioremap() uses the actual requested size (after alignment), while __iounmap() is passed the size from the vm_struct. On 020/030, early termination descriptors are used to set up mappings of extent 'size', which are validated on unmapping. The unmapped gap of size IO_SIZE defeats the sanity check of the pmd tables, causing __iounmap() to loop forever on 030. On 040/060, unmapping of page table entries does not check for a valid mapping, so the umapping loop always completes there. Adjust size to be unmapped by the gap that had been added in the vm_struct prior. This fixes the hang in atari_platform_init() reported a long time ago, and a similar one reported by Finn recently (addressed by removing ioremap() use from the SWIM driver. Tested on my Falcon in 030 mode - untested but should work the same on 040/060 (the extra page tables cleared there would never have been set up anyway). Signed-off-by: NMichael Schmitz <schmitzmic@gmail.com> [geert: Minor commit description improvements] [geert: This was fixed in 2.4.23, but not in 2.5.x] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org
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- 22 5月, 2018 7 次提交
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由 Geert Uytterhoeven 提交于
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Geert Uytterhoeven 提交于
Revive support for 64-bit get_user(), which was disabled in commit d94af931 ("[PATCH] m68k: clean up uaccess.h") due to a "broken" typeof in (then brand new) gcc-4.1. - Keep on using u64 for the temporary, as __typeof__() doesn't drop the const qualifier, - Move it into a union (like mips32 does) to get rid of the cast, as using get_user() to fetch a __user pointer would cause a "cast to pointer from integer of different size" warning otherwise. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NMartijn Coenen <maco@android.com>
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由 Boris Brezillon 提交于
ndelay() is supposed to take an unsigned long, but if you define ndelay() as a macro and the caller pass an unsigned long long instead of an unsigned long, the unsigned long long to unsigned long cast is not done and we end up with an "undefined reference to `__udivdi3'" error at link time. Fix that by making ndelay() an inline function and then defining dummy ndelay() macro that redirects to the ndelay() function (it's how most archs do to implement ndelay()). Fixes: c8ee038b ("m68k: Implement ndelay() based on the existing udelay() logic") Signed-off-by: NBoris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: NMiquel Raynal <miquel.raynal@bootlin.com> [geert: Remove comment now it is no longer a macro] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Arnd Bergmann 提交于
We have two ways of getting the current time from a platform at boot or during suspend: either using read_persistent_clock() or the rtc class operation. We never need both, so I'm hiding the read_persistent_clock variant when the generic RTC is enabled. Since read_persistent_clock() and mktime() are deprecated because of the y2038 overflow of time_t, we should use the time64_t based replacements here. Finally, the dependency on CONFIG_ARCH_USES_GETTIMEOFFSET looks completely bogus in this case, so let's remove that. It was added in commit b13b3f51 ("m68k: fix inclusion of arch_gettimeoffset for non-MMU 68k classic CPU types") to deal with arch_gettimeoffset(), which has since been removed from this file and is unrelated to the RTC functions. The rtc accessors are only used by classic machines, while coldfire uses proper RTC drivers, so we can put the old ifdef back around both functions. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Reviewed-by: NBaolin Wang <baolin.wang@linaro.org> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
This fixes a bug in read_persistent_clock() which causes the system clock to lag the Real Time Clock by one month. The problem was noticed on a Mac, but theoretically it must also affect Atari, BVME6000 and Q40. The tm_mon value in the struct rtc_time passed to mach_hwclk() is zero-based, and atari_mste_hwclk(), atari_tt_hwclk(), bvme6000_hwclk(), mac_hwclk() and q40_hwclk() all make this adjustment. Unfortunately, dn_dummy_hwclk(), mvme147_hwclk(), mvme16x_hwclk(), sun3_hwclk() and sun3x_hwclk() fail to decrement tm_mon. Also m68328_hwclk() assumes a one-based tm_mon. Bring these platforms into line and fix read_persistent_clock() so it works correctly on all m68k platforms. The datasheets for the RTC devices found on the affected platforms all confirm that the year is stored as a value in the range 0-99 and the month is stored as a value in the range 1-12. Please refer to the datasheets for MC146818 (Apollo), DS1643 (MVME), ICM7170 (Sun 3) and M48T02 (Sun 3x). Reported-by: NStan Johnson <userm57@yahoo.com> Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Reviewed-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Geert Uytterhoeven 提交于
Fixes: 4be33329 ("m68k: Verify the offsets in struct siginfo never change.") Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
The resource size is 0x2000 == end - start + 1. Therefore end == start + 0x2000 - 1. Cc: Laurent Vivier <lvivier@redhat.com> Cc: stable@vger.kernel.org # v4.14+ Tested-by: NStan Johnson <userm57@yahoo.com> Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Acked-by: NLaurent Vivier <lvivier@redhat.com> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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- 16 5月, 2018 1 次提交
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由 Christoph Hellwig 提交于
Variants of proc_create{,_data} that directly take a seq_file show callback and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: NChristoph Hellwig <hch@lst.de>
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- 07 5月, 2018 1 次提交
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由 Christoph Hellwig 提交于
This was used by the ide, scsi and networking code in the past to determine if they should bounce payloads. Now that the dma mapping always have to support dma to all physical memory (thanks to swiotlb for non-iommu systems) there is no need to this crude hack any more. Signed-off-by: NChristoph Hellwig <hch@lst.de> Acked-by: Palmer Dabbelt <palmer@sifive.com> (for riscv) Reviewed-by: NJens Axboe <axboe@kernel.dk>
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- 25 4月, 2018 2 次提交
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由 Eric W. Biederman 提交于
Filling in struct siginfo before calling force_sig_info a tedious and error prone process, where once in a great while the wrong fields are filled out, and siginfo has been inconsistently cleared. Simplify this process by using the helper force_sig_fault. Which takes as a parameters all of the information it needs, ensures all of the fiddly bits of filling in struct siginfo are done properly and then calls force_sig_info. In short about a 5 line reduction in code for every time force_sig_info is called, which makes the calling function clearer. Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
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由 Eric W. Biederman 提交于
Call clear_siginfo to ensure every stack allocated siginfo is properly initialized before being passed to the signal sending functions. Note: It is not safe to depend on C initializers to initialize struct siginfo on the stack because C is allowed to skip holes when initializing a structure. The initialization of struct siginfo in tracehook_report_syscall_exit was moved from the helper user_single_step_siginfo into tracehook_report_syscall_exit itself, to make it clear that the local variable siginfo gets fully initialized. In a few cases the scope of struct siginfo has been reduced to make it clear that siginfo siginfo is not used on other paths in the function in which it is declared. Instances of using memset to initialize siginfo have been replaced with calls clear_siginfo for clarity. Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
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- 19 4月, 2018 1 次提交
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由 Arnd Bergmann 提交于
We have a couple of files that try to include asm/compat.h on architectures where this is available. Those should generally use the higher-level linux/compat.h file, but that in turn fails to include asm/compat.h when CONFIG_COMPAT is disabled, unless we can provide that header on all architectures. This adds the asm/compat.h for all remaining architectures to simplify the dependencies. Architectures that are getting removed in linux-4.17 are not changed here, to avoid needless conflicts with the removal patches. Those architectures are broken by this patch, but we have already shown that they have no users. Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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- 03 4月, 2018 2 次提交
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由 Eric W. Biederman 提交于
A change to the generic struct siginfo accidentally changed the offset of si_offset. Add build time checks to ensure the offsets of all known fields in struct siginfo never change. This copies the form of similar changes on x86. Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
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由 Dominik Brodowski 提交于
Using this helper allows us to avoid the in-kernel calls to the sys_mmap_pgoff() syscall. The ksys_ prefix denotes that this function is meant as a drop-in replacement for the syscall. In particular, it uses the same calling convention as sys_mmap_pgoff(). This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
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- 28 3月, 2018 1 次提交
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由 Greg Ungerer 提交于
As of commit 205e1b7f ("dma-mapping: warn when there is no coherent_dma_mask") the Freescale FEC driver is issuing the following warning on driver initialization on ColdFire systems: WARNING: CPU: 0 PID: 1 at ./include/linux/dma-mapping.h:516 0x40159e20 Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 4.16.0-rc7-dirty #4 Stack from 41833dd8: 41833dd8 40259c53 40025534 40279e26 00000003 00000000 4004e514 41827000 400255de 40244e42 00000204 40159e20 00000009 00000000 00000000 4024531d 40159e20 40244e42 00000204 00000000 00000000 00000000 00000007 00000000 00000000 40279e26 4028d040 40226576 4003ae88 40279e26 418273f6 41833ef8 7fffffff 418273f2 41867028 4003c9a2 4180ac6c 00000004 41833f8c 4013e71c 40279e1c 40279e26 40226c16 4013ced2 40279e26 40279e58 4028d040 00000000 Call Trace: [<40025534>] 0x40025534 [<4004e514>] 0x4004e514 [<400255de>] 0x400255de [<40159e20>] 0x40159e20 [<40159e20>] 0x40159e20 It is not fatal, the driver and the system continue to function normally. As per the warning the coherent_dma_mask is not set on this device. There is nothing special about the DMA memory coherency on this hardware so we can just set the mask to 32bits in the platform data for the FEC ethernet devices. Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org>
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- 26 3月, 2018 3 次提交
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由 Finn Thain 提交于
This code works fine. The comment is misleading so remove it. Tested-by: NStan Johnson <userm57@yahoo.com> Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
According to Apple's Developer Notes, all of the early PowerBook models have their RTC connected to VIA1. Use the VIA clock ops as appropriate. This was tested on a PowerBook 170. Don't use the VIA ops when not appropriate. Calling unimplemented clock or PRAM getter or setter ops can now result in an error instead of failing silently. Tested-by: NStan Johnson <userm57@yahoo.com> Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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- 19 3月, 2018 2 次提交
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由 Geert Uytterhoeven 提交于
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Alexandre Belloni 提交于
The RTC core is always calling rtc_valid_tm after the read_time callback. It is not necessary to call it just before returning from the callback. Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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