treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of th

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Enrico Weigelt <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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clocksource: Use a plain u64 instead of cycle_t

There is no point in having an extra type for extra confusion. u64 is
unambiguous.

Conversion was done with the following coccinelle script:

@rem@
@

clocksource: Use a plain u64 instead of cycle_t

There is no point in having an extra type for extra confusion. u64 is
unambiguous.

Conversion was done with the following coccinelle script:

@rem@
@@
-typedef u64 cycle_t;

@fix@
typedef cycle_t;
@@
-cycle_t
+u64

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: John Stultz <[email protected]>

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clocksource: Mmio: remove artificial 32bit limitation

The EP93xx is registering a clocksource of 40 bits with
clocksource_mmio_init() but this is not working because of this
artificial limitation. I

clocksource: Mmio: remove artificial 32bit limitation

The EP93xx is registering a clocksource of 40 bits with
clocksource_mmio_init() but this is not working because of this
artificial limitation. It works fine to lift the uppe limit to
64 bits, and since cycle_t is u64, it should intuitively have been
like that from the beginning.

Fixes: 000bc17817bf "ARM: ep93xx: switch to GENERIC_CLOCKEVENTS"
Reported-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

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clocksource: Fix clocksource_mmio_readX_down

For some clocksource devices, for example, the registers are 32-bit, while
the lower 16-bit is used for timer counting(And reading the upper 16-bit
will

clocksource: Fix clocksource_mmio_readX_down

For some clocksource devices, for example, the registers are 32-bit, while
the lower 16-bit is used for timer counting(And reading the upper 16-bit
will return 0).

For example, when the counter value is 0x00001111, and then the
~readl_relaxed(to_mmio_clksrc(c)->reg) will return the value of 0xFFFFEEEE,
but it should be 0x0000EEEE.

So just using the c->mask to mask the unused bits.

Signed-off-by: Xiubo Li <[email protected]>
Signed-off-by: Daniel Lezcano <[email protected]>

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clocksource: Fix type confusion for clocksource_mmio_readX_Y

The types' definations are:
o cycle_t -> u64
o readl_relaxed -> u32
o readw_relaxed -> u16

So let clocksource_mmio_rea

clocksource: Fix type confusion for clocksource_mmio_readX_Y

The types' definations are:
o cycle_t -> u64
o readl_relaxed -> u32
o readw_relaxed -> u16

So let clocksource_mmio_readX_Ys return a cast to cycle_t, though
this maybe look reduntant sometimes, it make sense and they will be
more readable and less confusion...

This patch clarifies the functions type and fix it.

Signed-off-by: Xiubo Li <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Signed-off-by: Daniel Lezcano <[email protected]>

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clocksource: add common mmio clocksource

Add a generic mmio clocksource, covering both 32-bit and 16-bit register
access sizes, for up or down counters. This can be used to easily
create clocksourc

clocksource: add common mmio clocksource

Add a generic mmio clocksource, covering both 32-bit and 16-bit register
access sizes, for up or down counters. This can be used to easily
create clocksources for simple counter-based implementations.

Cc: Alessandro Rubini <[email protected]>
Cc: Colin Cross <[email protected]>
Cc: Eric Miao <[email protected]>
Cc: Erik Gilling <[email protected]>
Acked-by: "Hans J. Koch" <[email protected]>
Cc: Imre Kaloz <[email protected]>
Cc: Krzysztof Halasa <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Lennert Buytenhek <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: [email protected]
Acked-by: Nicolas Pitre <[email protected]>
Cc: Olof Johansson <[email protected]>
Tested-by: Sascha Hauer <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Tested-by: Tony Lindgren <[email protected]>
Reviewed-by: Viresh Kumar <[email protected]>
Cc: Wan ZongShun <[email protected]>
Signed-off-by: Russell King <[email protected]>

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