The patch titled Subject: hexagon: clean up timer-regs.h has been added to the -mm tree. Its filename is hexagon-clean-up-timer-regsh.patch
This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/hexagon-clean-up-timer-regsh.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/hexagon-clean-up-timer-regsh.patch
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------------------------------------------------------ From: Nathan Chancellor nathan@kernel.org Subject: hexagon: clean up timer-regs.h
When building allmodconfig, there is a warning about TIMER_ENABLE being redefined:
drivers/clocksource/timer-oxnas-rps.c:39:9: error: 'TIMER_ENABLE' macro redefined [-Werror,-Wmacro-redefined] #define TIMER_ENABLE BIT(7) ^ ./arch/hexagon/include/asm/timer-regs.h:13:9: note: previous definition is here #define TIMER_ENABLE 0 ^ 1 error generated.
The values in this header are only used in one file each, if they are used at all. Remove the header and sink all of the constants into their respective files.
TCX0_CLK_RATE is only used in arch/hexagon/include/asm/timex.h
TIMER_ENABLE, RTOS_TIMER_INT, RTOS_TIMER_REGS_ADDR are only used in arch/hexagon/kernel/time.c.
SLEEP_CLK_RATE and TIMER_CLR_ON_MATCH have both been unused since the file's introduction in commit 71e4a47f32f4 ("Hexagon: Add time and timer functions").
TIMER_ENABLE is redefined as BIT(0) so the shift is moved into the definition, rather than its use.
Link: https://lkml.kernel.org/r/20211115174250.1994179-3-nathan@kernel.org Signed-off-by: Nathan Chancellor nathan@kernel.org Acked-by: Brian Cain bcain@codeaurora.org Cc: Nick Desaulniers ndesaulniers@google.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
arch/hexagon/include/asm/timer-regs.h | 26 ------------------------ arch/hexagon/include/asm/timex.h | 3 -- arch/hexagon/kernel/time.c | 12 +++++++++-- 3 files changed, 11 insertions(+), 30 deletions(-)
--- a/arch/hexagon/include/asm/timer-regs.h +++ /dev/null @@ -1,26 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Timer support for Hexagon - * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. - */ - -#ifndef _ASM_TIMER_REGS_H -#define _ASM_TIMER_REGS_H - -/* This stuff should go into a platform specific file */ -#define TCX0_CLK_RATE 19200 -#define TIMER_ENABLE 0 -#define TIMER_CLR_ON_MATCH 1 - -/* - * 8x50 HDD Specs 5-8. Simulator co-sim not fixed until - * release 1.1, and then it's "adjustable" and probably not defaulted. - */ -#define RTOS_TIMER_INT 3 -#ifdef CONFIG_HEXAGON_COMET -#define RTOS_TIMER_REGS_ADDR 0xAB000000UL -#endif -#define SLEEP_CLK_RATE 32000 - -#endif --- a/arch/hexagon/include/asm/timex.h~hexagon-clean-up-timer-regsh +++ a/arch/hexagon/include/asm/timex.h @@ -7,11 +7,10 @@ #define _ASM_TIMEX_H
#include <asm-generic/timex.h> -#include <asm/timer-regs.h> #include <asm/hexagon_vm.h>
/* Using TCX0 as our clock. CLOCK_TICK_RATE scheduled to be removed. */ -#define CLOCK_TICK_RATE TCX0_CLK_RATE +#define CLOCK_TICK_RATE 19200
#define ARCH_HAS_READ_CURRENT_TIMER
--- a/arch/hexagon/kernel/time.c~hexagon-clean-up-timer-regsh +++ a/arch/hexagon/kernel/time.c @@ -17,9 +17,10 @@ #include <linux/of_irq.h> #include <linux/module.h>
-#include <asm/timer-regs.h> #include <asm/hexagon_vm.h>
+#define TIMER_ENABLE BIT(0) + /* * For the clocksource we need: * pcycle frequency (600MHz) @@ -33,6 +34,13 @@ cycles_t pcycle_freq_mhz; cycles_t thread_freq_mhz; cycles_t sleep_clk_freq;
+/* + * 8x50 HDD Specs 5-8. Simulator co-sim not fixed until + * release 1.1, and then it's "adjustable" and probably not defaulted. + */ +#define RTOS_TIMER_INT 3 +#define RTOS_TIMER_REGS_ADDR 0xAB000000UL + static struct resource rtos_timer_resources[] = { { .start = RTOS_TIMER_REGS_ADDR, @@ -80,7 +88,7 @@ static int set_next_event(unsigned long iowrite32(0, &rtos_timer->clear);
iowrite32(delta, &rtos_timer->match); - iowrite32(1 << TIMER_ENABLE, &rtos_timer->enable); + iowrite32(TIMER_ENABLE, &rtos_timer->enable); return 0; }
_
Patches currently in -mm which might be from nathan@kernel.org are
hexagon-export-raw-i-o-routines-for-modules.patch hexagon-clean-up-timer-regsh.patch hexagon-ignore-vmlinuxlds.patch