linux.git/arch/mips, branch v6.0

MIPS: Loongson32: Fix PHY-mode being left unspecified

2022-09-19T14:31:32+00:00

commit 0060c8783330 ("net: stmmac: implement support for passive mode
converters via dt") has changed the plat->interface field semantics from
containing the PHY-mode to specifying the MAC-PCS interface mode. Due to
that the loongson32 platform code will leave the phylink interface
uninitialized with the PHY-mode intended by the means of the actual
platform setup. The commit-author most likely has just missed the
arch-specific code to fix. Let's mend the Loongson32 platform code then by
assigning the PHY-mode to the phy_interface field of the STMMAC platform
data.

Fixes: 0060c8783330 ("net: stmmac: implement support for passive mode converters via dt")
Signed-off-by: Serge Semin 
Signed-off-by: Keguang Zhang 
Tested-by: Keguang Zhang 
Signed-off-by: Thomas Bogendoerfer

MIPS: lantiq: export clk_get_io() for lantiq_wdt.ko

2022-09-19T14:30:48+00:00

The lantiq WDT driver uses clk_get_io(), which is not exported,
so export it to fix a build error:

ERROR: modpost: "clk_get_io" [drivers/watchdog/lantiq_wdt.ko] undefined!

Fixes: 287e3f3f4e68 ("MIPS: lantiq: implement support for clkdev api")
Signed-off-by: Randy Dunlap 
Reported-by: kernel test robot 
Cc: Thomas Bogendoerfer 
Cc: John Crispin 
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer

Merge tag 'mips-fixes_6.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2022-09-11T11:21:56+00:00

Pull MIPS fixes from Thomas Bogendoerfer:

 - fix for loongson32 starup hang

 - fix for octeon irq setup problem

 - fix compiler warning for new CONFIG option

 - switch to SPARSEMEM_EXTREME for all platforms selecting SPARSEMEM

* tag 'mips-fixes_6.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: Select SPARSEMEM_EXTREME
  MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping()
  MIPS: octeon: Get rid of preprocessor directives around RESERVE32
  MIPS: loongson32: ls1c: Fix hang during startup

mips: Select SPARSEMEM_EXTREME

2022-09-09T15:37:27+00:00

Commit c46173183657 ("MIPS: Add NUMA support for Loongson-3") has increased
.bss size of the Octeon kernel from 16k to 16M. Providing the conditions
for SPARSEMEM_EXTREME avoids the waste of memory.

Thomas has tested the loogsoon64 kernel, where .bss is being reduced by
this patch from 16.5M to 515k.

Cc: Thomas Bogendoerfer 
Signed-off-by: Alexander Sverdlin 
Signed-off-by: Thomas Bogendoerfer

MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping()

2022-09-07T13:08:04+00:00

For irq_domain_associate() to work the virq descriptor has to be
pre-allocated in advance. Otherwise the following happens:

WARNING: CPU: 0 PID: 0 at .../kernel/irq/irqdomain.c:527 irq_domain_associate+0x298/0x2e8
error: virq128 is not allocated
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.78-... #1
        ...
Call Trace:
[] show_stack+0x9c/0x130
[] dump_stack+0x90/0xd0
[] __warn+0x118/0x130
[] warn_slowpath_fmt+0x4c/0x70
[] irq_domain_associate+0x298/0x2e8
[] octeon_irq_init_ciu+0x4c8/0x53c
[] of_irq_init+0x1e0/0x388
[] init_IRQ+0x4c/0xf4
[] start_kernel+0x404/0x698

Use irq_alloc_desc_at() to avoid the above problem.

Signed-off-by: Alexander Sverdlin 
Signed-off-by: Thomas Bogendoerfer

MIPS: octeon: Get rid of preprocessor directives around RESERVE32

2022-09-07T12:55:16+00:00

Some of them were pointless because CONFIG_CAVIUM_RESERVE32 is now always
defined, some were not enough (Yu Zhao reported
"Failed to allocate CAVIUM_RESERVE32 memory area" error).

Removing the directives allows for compiler coverage of RESERVE32 code and
replacing one of [always-true] "ifdef" with a compiler conditional fixes
the [cosmetic] error message.

Fixes: 3e3114ac460e ("MIPS: Introduce CAVIUM_RESERVE32 Kconfig option")

Signed-off-by: Alexander Sverdlin 
Signed-off-by: Thomas Bogendoerfer

MIPS: loongson32: ls1c: Fix hang during startup

2022-08-29T13:10:08+00:00

The RTCCTRL reg of LS1C is obselete.
Writing this reg will cause system hang.

Fixes: 60219c563c9b6 ("MIPS: Add RTC support for Loongson1C board")
Signed-off-by: Yang Ling 
Tested-by: Keguang Zhang 
Acked-by: Keguang Zhang 
Signed-off-by: Thomas Bogendoerfer

KVM: Rename mmu_notifier_* to mmu_invalidate_*

2022-08-19T08:05:41+00:00

The motivation of this renaming is to make these variables and related
helper functions less mmu_notifier bound and can also be used for non
mmu_notifier based page invalidation. mmu_invalidate_* was chosen to
better describe the purpose of 'invalidating' a page that those
variables are used for.

  - mmu_notifier_seq/range_start/range_end are renamed to
    mmu_invalidate_seq/range_start/range_end.

  - mmu_notifier_retry{_hva} helper functions are renamed to
    mmu_invalidate_retry{_hva}.

  - mmu_notifier_count is renamed to mmu_invalidate_in_progress to
    avoid confusion with mn_active_invalidate_count.

  - While here, also update kvm_inc/dec_notifier_count() to
    kvm_mmu_invalidate_begin/end() to match the change for
    mmu_notifier_count.

No functional change intended.

Signed-off-by: Chao Peng 
Message-Id: <20220816125322.1110439-3-chao.p.peng@linux.intel.com>
Signed-off-by: Paolo Bonzini

KVM: MIPS: remove unnecessary definition of KVM_PRIVATE_MEM_SLOTS

2022-08-19T08:05:26+00:00

KVM_PRIVATE_MEM_SLOTS defaults to zero, so it is not necessary to
define it in MIPS's asm/kvm_host.h.

Signed-off-by: Paolo Bonzini

Merge tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2022-08-08T18:31:40+00:00

Pull tty / serial driver updates from Greg KH:
 "Here is the big set of tty and serial driver changes for 6.0-rc1.

  It was delayed from last week as I wanted to make sure the last commit
  here got some good testing in linux-next and elsewhere as it seemed to
  show up only late in testing for some reason.

  Nothing major here, just lots of cleanups from Jiri and Ilpo to make
  the tty core cleaner (Jiri) and the rs485 code simpler to use (Ilpo).

  Also included in here is the obligatory n_gsm updates from Daniel
  Starke and lots of tiny driver updates and minor fixes and tweaks for
  other smaller serial drivers.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (186 commits)
  tty: serial: qcom-geni-serial: Fix %lu -> %u in print statements
  tty: amiserial: Fix comment typo
  tty: serial: document uart_get_console()
  tty: serial: serial_core, reformat kernel-doc for functions
  Documentation: serial: link uart_ops properly
  Documentation: serial: move GPIO kernel-doc to the functions
  Documentation: serial: dedup kernel-doc for uart functions
  Documentation: serial: move uart_ops documentation to the struct
  dt-bindings: serial: snps-dw-apb-uart: Document Rockchip RV1126
  serial: mvebu-uart: uart2 error bits clearing
  tty: serial: fsl_lpuart: correct the count of break characters
  serial: stm32: make info structs static to avoid sparse warnings
  serial: fsl_lpuart: zero out parity bit in CS7 mode
  tty: serial: qcom-geni-serial: Fix get_clk_div_rate() which otherwise could return a sub-optimal clock rate.
  serial: 8250_bcm2835aux: Add missing clk_disable_unprepare()
  tty: vt: initialize unicode screen buffer
  serial: remove VR41XX serial driver
  serial: 8250: lpc18xx: Remove redundant sanity check for RS485 flags
  serial: 8250_dwlib: remove redundant sanity check for RS485 flags
  dt_bindings: rs485: Correct delay values
  ...