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zephyr/arch/arc/core/cpu_idle.S

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First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
/*
* Copyright (c) 2014 Wind River Systems, Inc.
*
license: Replace Apache boilerplate with SPDX tag Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-18 17:01:01 -08:00
* SPDX-License-Identifier: Apache-2.0
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
*/
Fixed file description and applied doxygen style Removed old style file description and documnetation and apply doxygen synatx. Change-Id: I3ac9f06d4f574bf3c79c6f6044cec3a7e2f6e4c8 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-12-04 10:09:39 -05:00
/**
* @file
* @brief CPU power management
*
* CPU power management routines.
doxygen: change comment style to match javadoc The change replaces multiple asterisks to ** at the beginning of comments and adds a space before the asterisks at the beginning of lines. Change-Id: I7656bde3bf4d9a31e38941e43b580520432dabc1 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-07-01 17:22:39 -04:00
*/
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
kernel/arch: consolidate tTCS and TNANO definitions There was a lot of duplication between architectures for the definition of threads and the "nanokernel" guts. These have been consolidated. Now, a common file kernel/unified/include/kernel_structs.h holds the common definitions. Architectures provide two files to complement it: kernel_arch_data.h and kernel_arch_func.h. The first one contains at least the struct _thread_arch and struct _kernel_arch data structures, as well as the struct _callee_saved and struct _caller_saved register layouts. The second file contains anything that needs what is provided by the common stuff in kernel_structs.h. Those two files are only meant to be included in kernel_structs.h in very specific locations. The thread data structure has been separated into three major parts: common struct _thread_base and struct k_thread, and arch-specific struct _thread_arch. The first and third ones are included in the second. The struct s_NANO data structure has been split into two: common struct _kernel and arch-specific struct _kernel_arch. The latter is included in the former. Offsets files have also changed: nano_offsets.h has been renamed kernel_offsets.h and is still included by the arch-specific offsets.c. Also, since the thread and kernel data structures are now made of sub-structures, offsets have to be added to make up the full offset. Some of these additions have been consolidated in shorter symbols, available from kernel/unified/include/offsets_short.h, which includes an arch-specific offsets_arch_short.h. Most of the code include offsets_short.h now instead of offsets.h. Change-Id: I084645cb7e6db8db69aeaaf162963fe157045d5a Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-08 10:36:50 -05:00
#include <kernel_structs.h>
#include <offsets_short.h>
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
#include <toolchain.h>
linker: move all linker headers to include/linker Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-06-17 11:30:47 -04:00
#include <linker/sections.h>
Renaming include/nanokernel to include/arch Renaming the directory include/nanokernel to be include/arch, which better reflects the real nature of the directory and the contents inside. Change-Id: I2bc33ebc6715e2f0403227a558279fdf52398ade Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2015-05-28 10:56:47 -07:00
#include <arch/cpu.h>
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
kernel: rename z_arch_ to arch_ Promote the private z_arch_* namespace, which specifies the interface between the core kernel and the architecture code, to a new top-level namespace named arch_*. This allows our documentation generation to create online documentation for this set of interfaces, and this set of interfaces is worth treating in a more formal way anyway. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-11-07 12:43:29 -08:00
GTEXT(arch_cpu_idle)
GTEXT(arch_cpu_atomic_idle)
arc: rename k_cpu_sleep_mode This is only used internally by the ARC arch code and has been renamed to z_arc_cpu_sleep_mode. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-09-21 18:07:07 -07:00
GDATA(z_arc_cpu_sleep_mode)
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
arc: rename k_cpu_sleep_mode This is only used internally by the ARC arch code and has been renamed to z_arc_cpu_sleep_mode. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-09-21 18:07:07 -07:00
SECTION_VAR(BSS, z_arc_cpu_sleep_mode)
ARC: make the assembly codes compatible Make the assembly codes compatible with both GNU and Metaware toolchain. * replace ".balign" with ".align" ".align" assembler directive is supposed by all ARC toolchains and it is implemented in a same way across ARC toolchains. * replace "mov_s __certain_reg" with "mov __certain_reg" Even though GCC encodes those mnemonics and even real HW executes them according to PRM these are restricted ones for mov_s and CCAC rightfully refuses to accept such mnemonics. So for compatibility and clarity sake we switch to 32-bit mov instruction which allows use of all those instructions. * Add "%%" prefix while accessing registers from inline ASM as it is required by MWDT. * Drop "@" prefix while accessing symbols (defined in C code) from ASM code as it is required by MWDT. Signed-off-by: Wayne Ren <wei.ren@synopsys.com> /#
2020-07-03 15:58:41 +08:00
.align 4
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
.word 0
/*
doxygen: add @brief and capitalize Remove function name from comment and add @brief instead. Also capitilize first letter. Change-Id: Ib708b49bf02e5bc89b0066637a55874e659637e0 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-07-01 17:51:40 -04:00
* @brief Put the CPU in low-power mode
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
*
* This function always exits with interrupts unlocked.
*
* void nanCpuIdle(void)
*/
arc: add nanokernel tickless idle support Modified interrupt handling and idle code to enter and exit tickless idle mode. Change-Id: I3461ab6dba30003a4317027fc50a3ba07e830015 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com> Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-06-09 16:46:29 -07:00
kernel: rename z_arch_ to arch_ Promote the private z_arch_* namespace, which specifies the interface between the core kernel and the architecture code, to a new top-level namespace named arch_*. This allows our documentation generation to create online documentation for this set of interfaces, and this set of interfaces is worth treating in a more formal way anyway. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-11-07 12:43:29 -08:00
SECTION_FUNC(TEXT, arch_cpu_idle)
arc: add nanokernel tickless idle support Modified interrupt handling and idle code to enter and exit tickless idle mode. Change-Id: I3461ab6dba30003a4317027fc50a3ba07e830015 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com> Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-06-09 16:46:29 -07:00
kernel: event_logger: remove kernel_event_logger Move to more generic tracing hooks that can be implemented in different ways and do not interfere with the kernel. Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-04-06 07:48:53 -04:00
#ifdef CONFIG_TRACING
event_logger: add arc support for sleep event Jira: ZEP-53 Change-Id: I54e1a677a3d0cd5f08efefe45058115e79c062f9 Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
2016-05-04 11:55:33 -05:00
push_s blink
debug: tracing: Remove unneeded abstraction Various C and Assembly modules make function calls to z_sys_trace_*. These merely call corresponding functions sys_trace_*. This commit is to simplify these by making direct function calls to the sys_trace_* functions from these modules. Subsequently, the z_sys_trace_* functions are removed. Signed-off-by: Mrinal Sen <msen@oticon.com>
2019-09-19 09:25:19 +02:00
jl sys_trace_idle
event_logger: add arc support for sleep event Jira: ZEP-53 Change-Id: I54e1a677a3d0cd5f08efefe45058115e79c062f9 Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
2016-05-04 11:55:33 -05:00
pop_s blink
#endif
arc: add nanokernel tickless idle support Modified interrupt handling and idle code to enter and exit tickless idle mode. Change-Id: I3461ab6dba30003a4317027fc50a3ba07e830015 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com> Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-06-09 16:46:29 -07:00
arc: rename k_cpu_sleep_mode This is only used internally by the ARC arch code and has been renamed to z_arc_cpu_sleep_mode. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-09-21 18:07:07 -07:00
ld r1, [z_arc_cpu_sleep_mode]
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
or r1, r1, (1 << 4) /* set IRQ-enabled bit */
arch: arc: enable the workaround of sleep only for SMP case in nsim Because the issue of nsim, the sleep instruction doest not work correctly when SMP is enabled. A workaround is introduced in commit d56a12d955, this workaround should be enabled only for SMP case in nsim. For other cases, no need of this workaround. This commit fixes #24276 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2020-04-13 15:44:32 +08:00
sleep r1
arc: Uses of .nd on various branches not wanted The .nd on a branch is WRONG if its an unconditional branch. Not needed. On conditional branches its a compiler feature that is not yet functional with ARC targets. Typical code for this compiler can use .d to put something in the delay slot of an instruction, but using .nd is probably never wanted. Change-Id: If1017c468e6e7af269ea73daeb4bc223dcc0059f Signed-off-by: Chuck Jordan <cjordan@synopsys.com>
2016-05-25 09:24:55 -07:00
j_s [blink]
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
nop
/*
doxygen: add @brief and capitalize Remove function name from comment and add @brief instead. Also capitilize first letter. Change-Id: Ib708b49bf02e5bc89b0066637a55874e659637e0 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-07-01 17:51:40 -04:00
* @brief Put the CPU in low-power mode, entered with IRQs locked
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
*
* This function exits with interrupts restored to <key>.
*
kernel: rename z_arch_ to arch_ Promote the private z_arch_* namespace, which specifies the interface between the core kernel and the architecture code, to a new top-level namespace named arch_*. This allows our documentation generation to create online documentation for this set of interfaces, and this set of interfaces is worth treating in a more formal way anyway. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-11-07 12:43:29 -08:00
* void arch_cpu_atomic_idle(unsigned int key)
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
*/
kernel: rename z_arch_ to arch_ Promote the private z_arch_* namespace, which specifies the interface between the core kernel and the architecture code, to a new top-level namespace named arch_*. This allows our documentation generation to create online documentation for this set of interfaces, and this set of interfaces is worth treating in a more formal way anyway. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-11-07 12:43:29 -08:00
SECTION_FUNC(TEXT, arch_cpu_atomic_idle)
arc: add nanokernel tickless idle support Modified interrupt handling and idle code to enter and exit tickless idle mode. Change-Id: I3461ab6dba30003a4317027fc50a3ba07e830015 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com> Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-06-09 16:46:29 -07:00
kernel: event_logger: remove kernel_event_logger Move to more generic tracing hooks that can be implemented in different ways and do not interfere with the kernel. Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-04-06 07:48:53 -04:00
#ifdef CONFIG_TRACING
event_logger: add arc support for sleep event Jira: ZEP-53 Change-Id: I54e1a677a3d0cd5f08efefe45058115e79c062f9 Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
2016-05-04 11:55:33 -05:00
push_s blink
debug: tracing: Remove unneeded abstraction Various C and Assembly modules make function calls to z_sys_trace_*. These merely call corresponding functions sys_trace_*. This commit is to simplify these by making direct function calls to the sys_trace_* functions from these modules. Subsequently, the z_sys_trace_* functions are removed. Signed-off-by: Mrinal Sen <msen@oticon.com>
2019-09-19 09:25:19 +02:00
jl sys_trace_idle
event_logger: add arc support for sleep event Jira: ZEP-53 Change-Id: I54e1a677a3d0cd5f08efefe45058115e79c062f9 Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
2016-05-04 11:55:33 -05:00
pop_s blink
#endif
arc: rename k_cpu_sleep_mode This is only used internally by the ARC arch code and has been renamed to z_arc_cpu_sleep_mode. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-09-21 18:07:07 -07:00
ld r1, [z_arc_cpu_sleep_mode]
First commit Signed-off-by: <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00
or r1, r1, (1 << 4) /* set IRQ-enabled bit */
sleep r1
j_s.d [blink]
seti r0
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