Implement ARM Standard Service
This patch implements ARM Standard Service as a runtime service and adds
support for call count, UID and revision information SMCs. The existing
PSCI implementation is subsumed by the Standard Service calls and all
PSCI calls are therefore dispatched by the Standard Service to the PSCI
handler.
At present, PSCI is the only specification under Standard Service. Thus
call count returns the number of PSCI calls implemented. As this is the
initial implementation, a revision number of 0.1 is returned for call
revision.
Fixes ARM-software/tf-issues#62
Change-Id: I6d4273f72ad6502636efa0f872e288b191a64bc1
diff --git a/services/std_svc/psci/psci_private.h b/services/std_svc/psci/psci_private.h
new file mode 100644
index 0000000..2d9d12b
--- /dev/null
+++ b/services/std_svc/psci/psci_private.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __PSCI_PRIVATE_H__
+#define __PSCI_PRIVATE_H__
+
+#include <arch.h>
+#include <bakery_lock.h>
+
+#ifndef __ASSEMBLY__
+/*******************************************************************************
+ * The following two data structures hold the generic information to bringup
+ * a suspended/hotplugged out cpu
+ ******************************************************************************/
+typedef struct {
+ unsigned long entrypoint;
+ unsigned long spsr;
+} eret_params;
+
+typedef struct {
+ eret_params eret_info;
+ unsigned long context_id;
+ unsigned int scr;
+ unsigned int sctlr;
+} ns_entry_info;
+
+/*******************************************************************************
+ * The following two data structures hold the topology tree which in turn tracks
+ * the state of the all the affinity instances supported by the platform.
+ ******************************************************************************/
+typedef struct {
+ unsigned long mpidr;
+ unsigned short ref_count;
+ unsigned char state;
+ unsigned char level;
+ unsigned int data;
+ bakery_lock lock;
+} aff_map_node;
+
+typedef struct {
+ int min;
+ int max;
+} aff_limits_node;
+
+/*******************************************************************************
+ * This data structure holds secure world context that needs to be preserved
+ * across cpu_suspend calls which enter the power down state.
+ ******************************************************************************/
+typedef struct {
+ /* Align the suspend level to allow per-cpu lockless access */
+ int suspend_level
+ __attribute__((__aligned__(CACHE_WRITEBACK_GRANULE)));
+} suspend_context;
+
+typedef aff_map_node (*mpidr_aff_map_nodes[MPIDR_MAX_AFFLVL]);
+typedef unsigned int (*afflvl_power_on_finisher)(unsigned long,
+ aff_map_node *);
+
+/*******************************************************************************
+ * Data prototypes
+ ******************************************************************************/
+extern suspend_context psci_suspend_context[PSCI_NUM_AFFS];
+extern ns_entry_info psci_ns_entry_info[PSCI_NUM_AFFS];
+extern unsigned int psci_ns_einfo_idx;
+extern aff_limits_node psci_aff_limits[MPIDR_MAX_AFFLVL + 1];
+extern plat_pm_ops *psci_plat_pm_ops;
+extern aff_map_node psci_aff_map[PSCI_NUM_AFFS];
+extern afflvl_power_on_finisher psci_afflvl_off_finish_handlers[];
+extern afflvl_power_on_finisher psci_afflvl_sus_finish_handlers[];
+
+/*******************************************************************************
+ * SPD's power management hooks registered with PSCI
+ ******************************************************************************/
+extern const spd_pm_ops *psci_spd_pm;
+
+/*******************************************************************************
+ * Function prototypes
+ ******************************************************************************/
+/* Private exported functions from psci_common.c */
+extern int get_max_afflvl(void);
+extern unsigned short psci_get_state(aff_map_node *node);
+extern unsigned short psci_get_phys_state(aff_map_node *node);
+extern void psci_set_state(aff_map_node *node, unsigned short state);
+extern void psci_get_ns_entry_info(unsigned int index);
+extern unsigned long mpidr_set_aff_inst(unsigned long, unsigned char, int);
+extern int psci_validate_mpidr(unsigned long, int);
+extern int get_power_on_target_afflvl(unsigned long mpidr);
+extern void psci_afflvl_power_on_finish(unsigned long,
+ int,
+ int,
+ afflvl_power_on_finisher *);
+extern int psci_set_ns_entry_info(unsigned int index,
+ unsigned long entrypoint,
+ unsigned long context_id);
+extern int psci_check_afflvl_range(int start_afflvl, int end_afflvl);
+extern void psci_acquire_afflvl_locks(unsigned long mpidr,
+ int start_afflvl,
+ int end_afflvl,
+ mpidr_aff_map_nodes mpidr_nodes);
+extern void psci_release_afflvl_locks(unsigned long mpidr,
+ int start_afflvl,
+ int end_afflvl,
+ mpidr_aff_map_nodes mpidr_nodes);
+
+/* Private exported functions from psci_setup.c */
+extern int psci_get_aff_map_nodes(unsigned long mpidr,
+ int start_afflvl,
+ int end_afflvl,
+ mpidr_aff_map_nodes mpidr_nodes);
+extern aff_map_node *psci_get_aff_map_node(unsigned long, int);
+
+/* Private exported functions from psci_affinity_on.c */
+extern int psci_afflvl_on(unsigned long,
+ unsigned long,
+ unsigned long,
+ int,
+ int);
+
+/* Private exported functions from psci_affinity_off.c */
+extern int psci_afflvl_off(unsigned long, int, int);
+
+/* Private exported functions from psci_affinity_suspend.c */
+extern void psci_set_suspend_afflvl(aff_map_node *node, int afflvl);
+extern int psci_get_suspend_afflvl(aff_map_node *node);
+extern int psci_afflvl_suspend(unsigned long,
+ unsigned long,
+ unsigned long,
+ unsigned int,
+ int,
+ int);
+extern unsigned int psci_afflvl_suspend_finish(unsigned long, int, int);
+
+/* Private exported functions from psci_main.c */
+extern uint64_t psci_smc_handler(uint32_t smc_fid,
+ uint64_t x1,
+ uint64_t x2,
+ uint64_t x3,
+ uint64_t x4,
+ void *cookie,
+ void *handle,
+ uint64_t flags);
+
+/* PSCI setup function */
+extern int32_t psci_setup(void);
+
+#endif /*__ASSEMBLY__*/
+
+#endif /* __PSCI_PRIVATE_H__ */