linux.git/arch/m68k/sun3x, branch master

m68k: sun3/3x: Add and use "sun3.h"

2023-10-06T08:03:04+00:00

When building with W=1:

    arch/m68k/sun3/idprom.c:86:6: warning: no previous prototype for ‘sun3_get_model’ [-Wmissing-prototypes]
       86 | void sun3_get_model(char *model)
	  |      ^~~~~~~~~~~~~~
    arch/m68k/sun3/config.c:53:24: warning: no previous prototype for ‘sun3_init’ [-Wmissing-prototypes]
       53 | asmlinkage void __init sun3_init(void)
	  |                        ^~~~~~~~~
    arch/m68k/sun3/mmu_emu.c:117:6: warning: no previous prototype for ‘print_pte_vaddr’ [-Wmissing-prototypes]
      117 | void print_pte_vaddr (unsigned long vaddr)
	  |      ^~~~~~~~~~~~~~~
    arch/m68k/sun3/mmu_emu.c:126:13: warning: no previous prototype for ‘mmu_emu_init’ [-Wmissing-prototypes]
      126 | void __init mmu_emu_init(unsigned long bootmem_end)
	  |             ^~~~~~~~~~~~
    arch/m68k/sun3/mmu_emu.c:353:5: warning: no previous prototype for ‘mmu_emu_handle_fault’ [-Wmissing-prototypes]
      353 | int mmu_emu_handle_fault (unsigned long vaddr, int read_flag, int kernel_fault)
	  |     ^~~~~~~~~~~~~~~~~~~~
    arch/m68k/sun3/leds.c:6:6: warning: no previous prototype for ‘sun3_leds’ [-Wmissing-prototypes]
	6 | void sun3_leds(unsigned char byte)
	  |      ^~~~~~~~~
    arch/m68k/sun3/intersil.c:27:5: warning: no previous prototype for ‘sun3_hwclk’ [-Wmissing-prototypes]
       27 | int sun3_hwclk(int set, struct rtc_time *t)
	  |     ^~~~~~~~~~
    arch/m68k/sun3x/config.c:30:6: warning: no previous prototype for ‘sun3_leds’ [-Wmissing-prototypes]
       30 | void sun3_leds(unsigned char byte)
	  |      ^~~~~~~~~

Fix this by introducing a new header file "sun3.h" for holding the
prototypes of functions implemented in arch/m68k/sun3/ and
arch/m68k/sun3x/.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/87856ef9ef8955f459fb691faca921c0a688bc80.1694613528.git.geert@linux-m68k.org

m68k: sun3x: Make dvma_print() static

2023-10-06T08:03:04+00:00

There was never a user of dvma_print() outside arch/m68k/sun3x/dvma.c.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/0a038ac68ee553b1928a975dc0ae1c16803a0ac0.1694613528.git.geert@linux-m68k.org

m68k: sun3x: Make sun3x_halt() static

2023-10-06T08:03:04+00:00

When building with W=1:

    arch/m68k/sun3x/prom.c:33:6: warning: no previous prototype for ‘sun3x_halt’ [-Wmissing-prototypes]
       33 | void sun3x_halt(void)
	  |      ^~~~~~~~~~

Fix this by making sun3x_halt() static.
The function body was moved to arch/m68k/sun3x/prom.c in v2.4.5.2.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/0ba2883aaff2e4fc5e570bfee87c58e483668b26.1694613528.git.geert@linux-m68k.org

m68k: sun3x: Do not mark dvma_map_iommu() inline

2023-10-06T08:03:04+00:00

dvma_map_iommu() is called from the common Sun3/3x DVMA management code,
but never from inside arch/m68k/sun3x/dvma.c.  Hence it does not make
sense to mark it inline.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/0884fd1f5d6775535bf20b13cc74283df4955e49.1694613528.git.geert@linux-m68k.org

m68k: sun3x: Fix signature of sun3_leds()

2023-10-06T08:03:04+00:00

The sun3_leds() implementation for Sun3 in arch/m68k/sun3/leds.c, and
the prototype in arch/m68k/sun3/sun3ints.c take an "unsigned char", not
an "int".  Align the dummy implementation for Sun3x with the Sun3
variant and the common caller.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/5214afb67eac58b8adae5710aea0980c2644ff24.1694613528.git.geert@linux-m68k.org

m68k: sun3/3x: Include for config_sun3*()

2023-10-06T08:03:03+00:00

When building with W=1:

    arch/m68k/sun3/config.c:123:13: warning: no previous prototype for ‘config_sun3’ [-Wmissing-prototypes]
      126 | void __init config_sun3(void)
	  |             ^~~~~~~~~~~
    arch/m68k/sun3x/config.c:42:13: warning: no previous prototype for ‘config_sun3x’ [-Wmissing-prototypes]
       42 | void __init config_sun3x(void)
	  |             ^~~~~~~~~~~~

Fix this by including 

Fixes: 91d7b75a5888c182 ("m68k: Add asm/config.h")
Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/b9178e864d6c5e06c177d53bc4cce6d689f94d78.1694613528.git.geert@linux-m68k.org

m68k: Pass a pointer to virt_to_pfn() virt_to_page()

2023-05-29T09:27:07+00:00

Functions that work on a pointer to virtual memory such as
virt_to_pfn() and users of that function such as
virt_to_page() are supposed to pass a pointer to virtual
memory, ideally a (void *) or other pointer. However since
many architectures implement virt_to_pfn() as a macro,
this function becomes polymorphic and accepts both a
(unsigned long) and a (void *).

Fix up the offending calls in arch/m68k with explicit casts.

The page table include  will include different
variants of the defines depending on whether you build for
classic m68k, ColdFire or Sun3, so fix all variants.

Delete Coldfire pte_pagenr() which was using unsigned long
semantics from __pte_page().

Tested-by: Geert Uytterhoeven 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Geert Uytterhoeven 
Signed-off-by: Linus Walleij

m68k: Remove set_fs()

2021-09-24T11:35:07+00:00

Add a m68k-only set_fc helper to set the SFC and DFC registers for the
few places that need to override it for special MM operations, but
disconnect that from the deprecated kernel-wide set_fs() API.

Note that the SFC/DFC registers are context switched, so there is no need
to disable preemption.

Partially based on an earlier patch from
Linus Torvalds .

Signed-off-by: Christoph Hellwig 
Reviewed-by: Michael Schmitz 
Tested-by: Michael Schmitz 
Link: https://lore.kernel.org/r/20210916070405.52750-7-hch@lst.de
Signed-off-by: Geert Uytterhoeven

Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

2020-12-16T08:07:17+00:00

Pull asm-generic cross-architecture timer cleanup from Arnd Bergmann:
 "This cleans up two ancient timer features that were never completed in
  the past, CONFIG_GENERIC_CLOCKEVENTS and CONFIG_ARCH_USES_GETTIMEOFFSET.

  There was only one user left for the ARCH_USES_GETTIMEOFFSET variant
  of clocksource implementations, the ARM EBSA110 platform. Rather than
  changing to use modern timekeeping, we remove the platform entirely as
  Russell no longer uses his machine and nobody else seems to have one
  any more.

  The conditional code for using arch_gettimeoffset() is removed as a
  result.

  For CONFIG_GENERIC_CLOCKEVENTS, there are still a couple of platforms
  not using clockevent drivers: parisc, ia64, most of m68k, and one Arm
  platform. These all do timer ticks slighly differently, and this gets
  cleaned up to the point they at least all call the same helper
  function.

  Instead of most platforms using 'select GENERIC_CLOCKEVENTS' in
  Kconfig, the polarity is now reversed, with the few remaining ones
  selecting LEGACY_TIMER_TICK instead"

* tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  timekeeping: default GENERIC_CLOCKEVENTS to enabled
  timekeeping: remove xtime_update
  m68k: remove timer_interrupt() function
  m68k: change remaining timers to legacy_timer_tick
  m68k: m68328: use legacy_timer_tick()
  m68k: sun3/sun3c: use legacy_timer_tick
  m68k: split heartbeat out of timer function
  m68k: coldfire: use legacy_timer_tick()
  parisc: use legacy_timer_tick
  ARM: rpc: use legacy_timer_tick
  ia64: convert to legacy_timer_tick
  timekeeping: add CONFIG_LEGACY_TIMER_TICK
  timekeeping: remove arch_gettimeoffset
  net: remove am79c961a driver
  ARM: remove ebsa110 platform

m68k: Remove unused mach_max_dma_address

2020-11-02T11:05:21+00:00

This information is unused since the discontinuous memory support
has been introduced in 2007.

Fixes: 12d810c1b8c2 ("m68k: discontinuous memory support")
Signed-off-by: Laurent Vivier 
Link: https://lore.kernel.org/r/20201009095621.833192-1-laurent@vivier.eu
Signed-off-by: Geert Uytterhoeven