microblaze: Remove zalloc_maybe_bootmem()

Last user of zalloc_maybe_bootmem() was removed by
commit 4308e3c9e1ea ("microblaze/PCI: Remove unused allocation & free
of PCI host bridge structure")

Rem

microblaze: Remove zalloc_maybe_bootmem()

Last user of zalloc_maybe_bootmem() was removed by
commit 4308e3c9e1ea ("microblaze/PCI: Remove unused allocation & free
of PCI host bridge structure")

Remove it.

Signed-off-by: Christophe Leroy <[email protected]>
Link: https://lore.kernel.org/r/bfb1601cac24d7ef8e741c83f9301e4a5a87a0b5.1692124505.git.christophe.leroy@csgroup.eu
Signed-off-by: Michal Simek <[email protected]>

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init: consolidate prototypes in linux/init.h

The init/main.c file contains some extern declarations for functions
defined in architecture code, and it defines some other functions that are
called fr

init: consolidate prototypes in linux/init.h

The init/main.c file contains some extern declarations for functions
defined in architecture code, and it defines some other functions that are
called from architecture code with a custom prototype. Both of those
result in warnings with 'make W=1':

init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes]
init/main.c:790:20: error: no previous prototype for 'mem_encrypt_init' [-Werror=missing-prototypes]
init/main.c:792:20: error: no previous prototype for 'poking_init' [-Werror=missing-prototypes]
arch/arm64/kernel/irq.c:122:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes]
arch/arm64/kernel/time.c:55:13: error: no previous prototype for 'time_init' [-Werror=missing-prototypes]
arch/x86/kernel/process.c:935:13: error: no previous prototype for 'arch_post_acpi_subsys_init' [-Werror=missing-prototypes]
init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes]
kernel/fork.c:991:20: error: no previous prototype for 'arch_task_cache_init' [-Werror=missing-prototypes]

Add prototypes for all of these in include/linux/init.h or another
appropriate header, and remove the duplicate declarations from
architecture specific code.

[[email protected]: declare time_init_early()]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Stephen Rothwell <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Dennis Zhou <[email protected]>
Cc: Eric Paris <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Moore <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Russell King <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Waiman Long <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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microblaze: Remove noMMU code

This configuration is obsolete and likely none is really using it. That's
why remove it to simplify code.

Note about CONFIG_MMU in hw_exception_handler.S is left inten

microblaze: Remove noMMU code

This configuration is obsolete and likely none is really using it. That's
why remove it to simplify code.

Note about CONFIG_MMU in hw_exception_handler.S is left intentionally
for better comment understanding.

Cc: Mike Rapoport <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Mike Rapoport <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/r/43486cab370e0c0a79860120b71e0caac75a7e44.1606397528.git.michal.simek@xilinx.com

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microblaze: Remove unused boot_cpuid variable

boot_cpuid is not used on uni processor system that's why can be removed.

Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Stefan Ass

microblaze: Remove unused boot_cpuid variable

boot_cpuid is not used on uni processor system that's why can be removed.

Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Stefan Asserhall <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>

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microblaze: Convert headers to SPDX license

Covert all headers to SPDX.

Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Stefan Asserhall <[email protected]>
Reviewed-by

microblaze: Convert headers to SPDX license

Covert all headers to SPDX.

Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Stefan Asserhall <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>

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microblaze: consolidate GPIO reset handling

Now that platform.c only has the GPIO reset handling left, move the
initcall to reset.c and remove platform.c.

Cc: Michal Simek <[email protected]>
Signed

microblaze: consolidate GPIO reset handling

Now that platform.c only has the GPIO reset handling left, move the
initcall to reset.c and remove platform.c.

Cc: Michal Simek <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Michal Simek <[email protected]>

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microblaze: Remove architecture heart beat code

There is no reason to keep this gpio based code in architecture. Use
ledtrig-heartbeat.c instead which is much more flexible then this
ancient code.

microblaze: Remove architecture heart beat code

There is no reason to keep this gpio based code in architecture. Use
ledtrig-heartbeat.c instead which is much more flexible then this
ancient code.

Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>

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microblaze: remove redundant early_printk support

With earlycon support now enabled, the arch specific early_printk support
can be removed.

Signed-off-by: Rob Herring <[email protected]>
Cc: Michal S

microblaze: remove redundant early_printk support

With earlycon support now enabled, the arch specific early_printk support
can be removed.

Signed-off-by: Rob Herring <[email protected]>
Cc: Michal Simek <[email protected]>
Signed-off-by: Michal Simek <[email protected]>

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microblaze: remove unused alloc_maybe_bootmem

alloc_maybe_bootmem is unused, so remove it.

Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Michal Simek <[email protected]>

microblaze: Drop architecture-specific declaration of early_printk

miceroblaze:allmodconfig fails to build, complaining that
early_printk is redeclared.

include/linux/printk.h:114:6: error: static

microblaze: Drop architecture-specific declaration of early_printk

miceroblaze:allmodconfig fails to build, complaining that
early_printk is redeclared.

include/linux/printk.h:114:6: error: static declaration of 'early_printk'
follows non-static declaration
void early_printk(const char *s, ...) { }
^
In file included from arch/microblaze/include/asm/page.h:19:0,
from arch/microblaze/include/asm/io.h:15,
from include/linux/io.h:22,
from kernel/irq/generic-chip.c:6:
arch/microblaze/include/asm/setup.h:22:6:
note: previous declaration of 'early_printk' was here
void early_printk(const char *fmt, ...);

This happens because CONFIG_EARLY_PRINTK is not enabled in this
configuration.

The architecture-specific declaration is not needed; drop it.

Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Michal Simek <[email protected]>

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microblaze: Rename global function heartbeat()

microblaze:allmodconfig complains for some configurations that 'heartbeat'
is redefined as different kind of symbol. This is seen in test compiles
of w

microblaze: Rename global function heartbeat()

microblaze:allmodconfig complains for some configurations that 'heartbeat'
is redefined as different kind of symbol. This is seen in test compiles
of watchdog drivers, which often use 'heartbeat' as ststic variable.

Since 'heartbeat' is an unfortunate name for a global function,
rename it to microblaze_heartbeat. Also rename the setup function
to microblaze_setup_heartbeat.

Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Michal Simek <[email protected]>

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mm/microblaze: use common help functions to free reserved pages

Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <[email protected]>
Cc: Michal Simek <[email protected]>

mm/microblaze: use common help functions to free reserved pages

Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <[email protected]>
Cc: Michal Simek <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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UAPI: (Scripted) Disintegrate arch/microblaze/include/asm

Signed-off-by: David Howells <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Ac

UAPI: (Scripted) Disintegrate arch/microblaze/include/asm

Signed-off-by: David Howells <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Acked-by: Michael Kerrisk <[email protected]>
Acked-by: Paul E. McKenney <[email protected]>
Acked-by: Dave Jones <[email protected]>

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Disintegrate asm/system.h for Microblaze

Disintegrate asm/system.h for Microblaze. Not compiled.

Signed-off-by: David Howells <[email protected]>
cc: [email protected]

microblaze: Improve TLB calculation for small systems

Systems with small amount of memory need to be handled
differently. Linux can't allocate the whole 32MB with two TLBs
because then there is no M

microblaze: Improve TLB calculation for small systems

Systems with small amount of memory need to be handled
differently. Linux can't allocate the whole 32MB with two TLBs
because then there is no MMU protection.

Signed-off-by: Michal Simek <[email protected]>

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microblaze: Remove eprintk macro

eprintk macro was used for printing early_printk
messages. Early console registration was changed
that's why this is not needed.

Signed-off-by: Michal Simek <monstr

microblaze: Remove eprintk macro

eprintk macro was used for printing early_printk
messages. Early console registration was changed
that's why this is not needed.

Signed-off-by: Michal Simek <[email protected]>

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microblaze: Get early printk console earlier

1. Register early console as standard console
2. Enable CON_BOOT console flag to ensure auto-unregistering by the kernel
3. remap_early_printk function r

microblaze: Get early printk console earlier

1. Register early console as standard console
2. Enable CON_BOOT console flag to ensure auto-unregistering by the kernel
3. remap_early_printk function remap physical console baseaddr to virtual space

Usage specific function for console remap is done after memory initialization
with IRQ turn off that's why there is not necessary to protect it.

The reason for remapping is that the kernel use TLB 63 for 1:1 address mapping
to be able to use console in very early boot-up phase. But allocating one TLB
just for console caused performance degression that's why ioremaps create new
mapping and TLB 63 is automatically released and ready to use.

Signed-off-by: Michal Simek <[email protected]>
CC: Russell King <[email protected]>
CC: Ralf Baechle <[email protected]>
CC: Ingo Molnar <[email protected]>
CC: Alan Cox <[email protected]>
CC: <[email protected]>
CC: Arnd Bergmann <[email protected]>

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microblaze: remove early printk uarlite console dependency from header

This dependency is resolved in menuconfig.

Signed-off-by: Michal Simek <[email protected]>

microblaze: Report if only one timer is used

Kernel needs two timers because of clocksource and clockevent.
It is better to show warning message directly on early
console if available. If it isn't a

microblaze: Report if only one timer is used

Kernel needs two timers because of clocksource and clockevent.
It is better to show warning message directly on early
console if available. If it isn't available kernel log buffer
contains it.

Signed-off-by: Michal Simek <[email protected]>

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microblaze: Improve ftrace time measuring

I had to comment sched_clock generic function because of broken toolchain.
It is fine grain timing.

Signed-off-by: Michal Simek <[email protected]>

microblaze: GPIO reset support

Signed-off-by: Michal Simek <[email protected]>

microblaze: Add checking mechanism for MSR instruction

It was necessary to use fourth parameter(r8) in early_printk
to show messages on console.

Signed-off-by: Michal Simek <[email protected]>

microblaze_mmu_v2: Alocate TLB for early console

Signed-off-by: Michal Simek <[email protected]>

microblaze_v8: setup.c, setup.h - system setting

Reviewed-by: Ingo Molnar <[email protected]>
Reviewed-by: Stephen Neuendorffer <[email protected]>
Acked-by: John Linn <[email protected]

microblaze_v8: setup.c, setup.h - system setting

Reviewed-by: Ingo Molnar <[email protected]>
Reviewed-by: Stephen Neuendorffer <[email protected]>
Acked-by: John Linn <[email protected]>
Acked-by: John Williams <[email protected]>
Signed-off-by: Michal Simek <[email protected]>

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