aboutsummaryrefslogtreecommitdiffstats
path: root/cvmx-app-hotplug.h
diff options
context:
space:
mode:
Diffstat (limited to 'cvmx-app-hotplug.h')
-rw-r--r--cvmx-app-hotplug.h78
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