diff options
Diffstat (limited to 'cvmx-app-hotplug.h')
| -rw-r--r-- | cvmx-app-hotplug.h | 78 |
1 files changed, 65 insertions, 13 deletions
diff --git a/cvmx-app-hotplug.h b/cvmx-app-hotplug.h index bfa62f8c35a8..4e251bbc029f 100644 --- a/cvmx-app-hotplug.h +++ b/cvmx-app-hotplug.h @@ -1,5 +1,5 @@ /***********************license start*************** - * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights + * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights * reserved. * * @@ -15,7 +15,7 @@ * disclaimer in the documentation and/or other materials provided * with the distribution. - * * Neither the name of Cavium Networks nor the names of + * * Neither the name of Cavium Inc. nor the names of * its contributors may be used to endorse or promote products * derived from this software without specific prior written * permission. @@ -26,7 +26,7 @@ * countries. * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" - * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR + * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM @@ -48,47 +48,99 @@ #ifndef __CVMX_APP_HOTPLUG_H__ #define __CVMX_APP_HOTPLUG_H__ -#ifdef __cplusplus +#ifdef __cplusplus extern "C" { #endif #ifdef CVMX_BUILD_FOR_LINUX_KERNEL #include <asm/octeon/cvmx.h> #include <asm/octeon/cvmx-bootmem.h> +#include <asm/octeon/cvmx-spinlock.h> #else #include "cvmx.h" #include "cvmx-coremask.h" #include "cvmx-interrupt.h" #include "cvmx-bootmem.h" +#include "cvmx-spinlock.h" #endif #define CVMX_APP_HOTPLUG_MAX_APPS 32 #define CVMX_APP_HOTPLUG_MAX_APPNAME_LEN 256 +/** +* hotplug_start is the entry point for hot plugged cores. +* cores_added_callback is callback which in invoked when new cores are added +* to the application. This is invoked on all the old core +* that existed before the current set of cores were +* added. +* cores_removed_callback is callback which in invoked when cores are removed +* an application. This is invoked on all the cores that +* exist after the set of cores being requesed are +* removed. +* shutdown_done_callback before the application is shutdown this callback is +* invoked on all the cores that are part of the app. +* unplug_callback before the cores are unplugged this callback is invoked +* only on the cores that are being unlpuuged. +*/ +typedef struct cvmx_app_hotplug_callbacks +{ + void (*hotplug_start)(void *ptr); + void (*cores_added_callback) (uint32_t ,void *ptr); + void (*cores_removed_callback) (uint32_t,void *ptr); + void (*shutdown_callback) (void *ptr); + void (*unplug_core_callback) (void *ptr); +} cvmx_app_hotplug_callbacks_t; + +/* The size of this struct should be a fixed size of 1024 bytes. + Additional members should be added towards the end of the + strcuture by adjusting the size of padding */ typedef struct cvmx_app_hotplug_info { - char app_name[CVMX_APP_HOTPLUG_MAX_APPNAME_LEN]; - uint32_t coremask; - uint32_t volatile hotplug_activated_coremask; - int32_t valid; - int32_t volatile shutdown_done; - uint64_t shutdown_callback; - uint64_t data; + char app_name[CVMX_APP_HOTPLUG_MAX_APPNAME_LEN]; + uint32_t coremask; + uint32_t volatile hotplug_activated_coremask; + int32_t valid; + int32_t volatile shutdown_done; + uint64_t shutdown_callback; + uint64_t unplug_callback; + uint64_t cores_added_callback; + uint64_t cores_removed_callback; + uint64_t hotplug_start; + uint64_t data; + uint32_t volatile hplugged_cores; + uint32_t shutdown_cores; + uint32_t app_shutdown; + uint32_t unplug_cores; + uint32_t padding[172]; } cvmx_app_hotplug_info_t; struct cvmx_app_hotplug_global { uint32_t avail_coremask; cvmx_app_hotplug_info_t hotplug_info_array[CVMX_APP_HOTPLUG_MAX_APPS]; + uint32_t version; + cvmx_spinlock_t hotplug_global_lock; + int app_under_boot; + int app_under_shutdown; }; - typedef struct cvmx_app_hotplug_global cvmx_app_hotplug_global_t; +int is_core_being_hot_plugged(void); +int is_app_being_booted_or_shutdown(void); +void set_app_unber_boot(int val); +void set_app_under_shutdown(int val); int cvmx_app_hotplug_shutdown_request(uint32_t, int); +int cvmx_app_hotplug_unplug_cores(int index, uint32_t coremask, int wait); cvmx_app_hotplug_info_t* cvmx_app_hotplug_get_info(uint32_t); +int cvmx_app_hotplug_get_index(uint32_t coremask); +cvmx_app_hotplug_info_t* cvmx_app_hotplug_get_info_at_index(int index); +int is_app_hotpluggable(int index); +int cvmx_app_hotplug_call_add_cores_callback(int index); #ifndef CVMX_BUILD_FOR_LINUX_USER int cvmx_app_hotplug_register(void(*)(void*), void*); +int cvmx_app_hotplug_register_cb(cvmx_app_hotplug_callbacks_t *, void*, int); int cvmx_app_hotplug_activate(void); +void cvmx_app_hotplug_core_shutdown(void); void cvmx_app_hotplug_shutdown_disable(void); void cvmx_app_hotplug_shutdown_enable(void); #endif @@ -96,7 +148,7 @@ void cvmx_app_hotplug_shutdown_enable(void); #define CVMX_APP_HOTPLUG_INFO_REGION_SIZE sizeof(cvmx_app_hotplug_global_t) #define CVMX_APP_HOTPLUG_INFO_REGION_NAME "cvmx-app-hotplug-block" -#ifdef __cplusplus +#ifdef __cplusplus } #endif |