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SDEI: MISRA fixes

Browse source 
These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I6235a355e006f0b1c7c1c4d811b3964a64d0434f
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
This commit is contained in:
Jeenu Viswambharan 2018-08-02 10:14:12 +01:00
parent 4e45fbd626
commit ba6e5ca671
8 changed files with 296 additions and 294 deletions
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6
include/bl31/interrupt_mgmt.h
View file

@ -101,9 +101,9 @@
******************************************************************************/
#define INTR_SRC_SS_FLAG_SHIFT U(0) /* BIT[0] */
#define INTR_SRC_SS_FLAG_MASK U(1)
#define set_interrupt_src_ss(flag, val) (flag |= val << INTR_SRC_SS_FLAG_SHIFT)
#define clr_interrupt_src_ss(flag) (flag &= ~(U(1) << INTR_SRC_SS_FLAG_SHIFT))
#define get_interrupt_src_ss(flag) ((flag >> INTR_SRC_SS_FLAG_SHIFT) & \
#define set_interrupt_src_ss(flag, val) ((flag) |= (val) << INTR_SRC_SS_FLAG_SHIFT)
#define clr_interrupt_src_ss(flag) ((flag) &= ~(U(1) << INTR_SRC_SS_FLAG_SHIFT))
#define get_interrupt_src_ss(flag) (((flag) >> INTR_SRC_SS_FLAG_SHIFT) & \
INTR_SRC_SS_FLAG_MASK)
#ifndef __ASSEMBLY__

6
include/lib/el3_runtime/aarch64/context.h
View file

@ -241,9 +241,9 @@ DEFINE_REG_STRUCT(cve_2018_3639, CTX_CVE_2018_3639_ALL);
* Macros to access members of any of the above structures using their
* offsets
*/
#define read_ctx_reg(ctx, offset) ((ctx)->_regs[offset >> DWORD_SHIFT])
#define write_ctx_reg(ctx, offset, val) (((ctx)->_regs[offset >> DWORD_SHIFT]) \
= val)
#define read_ctx_reg(ctx, offset) ((ctx)->_regs[(offset) >> DWORD_SHIFT])
#define write_ctx_reg(ctx, offset, val) (((ctx)->_regs[(offset) >> DWORD_SHIFT]) \
= (uint64_t) (val))
/*
* Top-level context structure which is used by EL3 firmware to

109
include/services/sdei.h
View file

@ -4,61 +4,56 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __SDEI_H__
#define __SDEI_H__
#ifndef SDEI_H
#define SDEI_H
#include <spinlock.h>
#include <utils_def.h>
/* Range 0xC4000020 - 0xC400003F reserved for SDE 64bit smc calls */
#define SDEI_VERSION 0xC4000020
#define SDEI_EVENT_REGISTER 0xC4000021
#define SDEI_EVENT_ENABLE 0xC4000022
#define SDEI_EVENT_DISABLE 0xC4000023
#define SDEI_EVENT_CONTEXT 0xC4000024
#define SDEI_EVENT_COMPLETE 0xC4000025
#define SDEI_EVENT_COMPLETE_AND_RESUME 0xC4000026
#define SDEI_VERSION 0xC4000020U
#define SDEI_EVENT_REGISTER 0xC4000021U
#define SDEI_EVENT_ENABLE 0xC4000022U
#define SDEI_EVENT_DISABLE 0xC4000023U
#define SDEI_EVENT_CONTEXT 0xC4000024U
#define SDEI_EVENT_COMPLETE 0xC4000025U
#define SDEI_EVENT_COMPLETE_AND_RESUME 0xC4000026U
#define SDEI_EVENT_UNREGISTER 0xC4000027
#define SDEI_EVENT_STATUS 0xC4000028
#define SDEI_EVENT_GET_INFO 0xC4000029
#define SDEI_EVENT_ROUTING_SET 0xC400002A
#define SDEI_PE_MASK 0xC400002B
#define SDEI_PE_UNMASK 0xC400002C
#define SDEI_EVENT_UNREGISTER 0xC4000027U
#define SDEI_EVENT_STATUS 0xC4000028U
#define SDEI_EVENT_GET_INFO 0xC4000029U
#define SDEI_EVENT_ROUTING_SET 0xC400002AU
#define SDEI_PE_MASK 0xC400002BU
#define SDEI_PE_UNMASK 0xC400002CU
#define SDEI_INTERRUPT_BIND 0xC400002D
#define SDEI_INTERRUPT_RELEASE 0xC400002E
#define SDEI_EVENT_SIGNAL 0xC400002F
#define SDEI_FEATURES 0xC4000030
#define SDEI_PRIVATE_RESET 0xC4000031
#define SDEI_SHARED_RESET 0xC4000032
#define SDEI_INTERRUPT_BIND 0xC400002DU
#define SDEI_INTERRUPT_RELEASE 0xC400002EU
#define SDEI_EVENT_SIGNAL 0xC400002FU
#define SDEI_FEATURES 0xC4000030U
#define SDEI_PRIVATE_RESET 0xC4000031U
#define SDEI_SHARED_RESET 0xC4000032U
/* SDEI_EVENT_REGISTER flags */
#define SDEI_REGF_RM_ANY 0
#define SDEI_REGF_RM_PE 1
#define SDEI_REGF_RM_ANY 0ULL
#define SDEI_REGF_RM_PE 1ULL
/* SDEI_EVENT_COMPLETE status flags */
#define SDEI_EV_HANDLED 0
#define SDEI_EV_FAILED 1
/* SDE event status values in bit position */
#define SDEI_STATF_REGISTERED 0
#define SDEI_STATF_ENABLED 1
#define SDEI_STATF_RUNNING 2
#define SDEI_EV_HANDLED 0U
#define SDEI_EV_FAILED 1U
/* Internal: SDEI flag bit positions */
#define _SDEI_MAPF_DYNAMIC_SHIFT 1
#define _SDEI_MAPF_BOUND_SHIFT 2
#define _SDEI_MAPF_SIGNALABLE_SHIFT 3
#define _SDEI_MAPF_PRIVATE_SHIFT 4
#define _SDEI_MAPF_CRITICAL_SHIFT 5
#define _SDEI_MAPF_EXPLICIT_SHIFT 6
#define SDEI_MAPF_DYNAMIC_SHIFT_ 1U
#define SDEI_MAPF_BOUND_SHIFT_ 2U
#define SDEI_MAPF_SIGNALABLE_SHIFT_ 3U
#define SDEI_MAPF_PRIVATE_SHIFT_ 4U
#define SDEI_MAPF_CRITICAL_SHIFT_ 5U
#define SDEI_MAPF_EXPLICIT_SHIFT_ 6U
/* SDEI event 0 */
#define SDEI_EVENT_0 0
/* Placeholder interrupt for dynamic mapping */
#define SDEI_DYN_IRQ 0
#define SDEI_DYN_IRQ 0U
/* SDEI flags */
@ -80,20 +75,20 @@
*
* See also the is_map_bound() macro.
*/
#define SDEI_MAPF_DYNAMIC BIT(_SDEI_MAPF_DYNAMIC_SHIFT)
#define SDEI_MAPF_BOUND BIT(_SDEI_MAPF_BOUND_SHIFT)
#define SDEI_MAPF_EXPLICIT BIT(_SDEI_MAPF_EXPLICIT_SHIFT)
#define SDEI_MAPF_DYNAMIC BIT(SDEI_MAPF_DYNAMIC_SHIFT_)
#define SDEI_MAPF_BOUND BIT(SDEI_MAPF_BOUND_SHIFT_)
#define SDEI_MAPF_EXPLICIT BIT(SDEI_MAPF_EXPLICIT_SHIFT_)
#define SDEI_MAPF_SIGNALABLE BIT(_SDEI_MAPF_SIGNALABLE_SHIFT)
#define SDEI_MAPF_PRIVATE BIT(_SDEI_MAPF_PRIVATE_SHIFT)
#define SDEI_MAPF_SIGNALABLE BIT(SDEI_MAPF_SIGNALABLE_SHIFT_)
#define SDEI_MAPF_PRIVATE BIT(SDEI_MAPF_PRIVATE_SHIFT_)
#define SDEI_MAPF_NORMAL 0
#define SDEI_MAPF_CRITICAL BIT(_SDEI_MAPF_CRITICAL_SHIFT)
#define SDEI_MAPF_CRITICAL BIT(SDEI_MAPF_CRITICAL_SHIFT_)
/* Indices of private and shared mappings */
#define _SDEI_MAP_IDX_PRIV 0
#define _SDEI_MAP_IDX_SHRD 1
#define _SDEI_MAP_IDX_MAX 2
#define SDEI_MAP_IDX_PRIV_ 0U
#define SDEI_MAP_IDX_SHRD_ 1U
#define SDEI_MAP_IDX_MAX_ 2U
/* The macros below are used to identify SDEI calls from the SMC function ID */
#define SDEI_FID_MASK U(0xffe0)
@ -104,22 +99,22 @@
#define SDEI_EVENT_MAP(_event, _intr, _flags) \
{ \
.ev_num = _event, \
.intr = _intr, \
.map_flags = _flags \
.ev_num = (_event), \
.intr = (_intr), \
.map_flags = (_flags) \
}
#define SDEI_SHARED_EVENT(_event, _intr, _flags) \
SDEI_EVENT_MAP(_event, _intr, _flags)
#define SDEI_PRIVATE_EVENT(_event, _intr, _flags) \
SDEI_EVENT_MAP(_event, _intr, _flags | SDEI_MAPF_PRIVATE)
SDEI_EVENT_MAP(_event, _intr, (_flags) | SDEI_MAPF_PRIVATE)
#define SDEI_DEFINE_EVENT_0(_intr) \
SDEI_PRIVATE_EVENT(SDEI_EVENT_0, _intr, SDEI_MAPF_SIGNALABLE)
SDEI_PRIVATE_EVENT(SDEI_EVENT_0, (_intr), SDEI_MAPF_SIGNALABLE)
#define SDEI_EXPLICIT_EVENT(_event, _pri) \
SDEI_EVENT_MAP(_event, 0, _pri | SDEI_MAPF_EXPLICIT | SDEI_MAPF_PRIVATE)
SDEI_EVENT_MAP((_event), 0, (_pri) | SDEI_MAPF_EXPLICIT | SDEI_MAPF_PRIVATE)
/*
* Declare shared and private entries for each core. Also declare a global
@ -133,12 +128,12 @@
[PLATFORM_CORE_COUNT * ARRAY_SIZE(_private)]; \
sdei_entry_t sdei_shared_event_table[ARRAY_SIZE(_shared)]; \
const sdei_mapping_t sdei_global_mappings[] = { \
[_SDEI_MAP_IDX_PRIV] = { \
.map = _private, \
[SDEI_MAP_IDX_PRIV_] = { \
.map = (_private), \
.num_maps = ARRAY_SIZE(_private) \
}, \
[_SDEI_MAP_IDX_SHRD] = { \
.map = _shared, \
[SDEI_MAP_IDX_SHRD_] = { \
.map = (_shared), \
.num_maps = ARRAY_SIZE(_shared) \
}, \
}
@ -185,4 +180,4 @@ void sdei_init(void);
/* Public API to dispatch an event to Normal world */
int sdei_dispatch_event(int ev_num);
#endif /* __SDEI_H__ */
#endif /* SDEI_H */

9
services/std_svc/sdei/sdei_event.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -21,7 +21,8 @@ sdei_entry_t *get_event_entry(sdei_ev_map_t *map)
{
const sdei_mapping_t *mapping;
sdei_entry_t *cpu_priv_base;
unsigned int idx, base_idx;
unsigned int base_idx;
long int idx;
if (is_event_private(map)) {
/*
@ -32,7 +33,7 @@ sdei_entry_t *get_event_entry(sdei_ev_map_t *map)
idx = MAP_OFF(map, mapping);
/* Base of private mappings for this CPU */
base_idx = plat_my_core_pos() * mapping->num_maps;
base_idx = plat_my_core_pos() * ((unsigned int) mapping->num_maps);
cpu_priv_base = &sdei_private_event_table[base_idx];
/*
@ -52,7 +53,7 @@ sdei_entry_t *get_event_entry(sdei_ev_map_t *map)
* Find event mapping for a given interrupt number: On success, returns pointer
* to the event mapping. On error, returns NULL.
*/
sdei_ev_map_t *find_event_map_by_intr(int intr_num, int shared)
sdei_ev_map_t *find_event_map_by_intr(unsigned int intr_num, bool shared)
{
const sdei_mapping_t *mapping;
sdei_ev_map_t *map;

118
services/std_svc/sdei/sdei_intr_mgmt.c
View file

@ -16,17 +16,14 @@
#include <string.h>
#include "sdei_private.h"
#define PE_MASKED 1
#define PE_NOT_MASKED 0
/* x0-x17 GPREGS context */
#define SDEI_SAVED_GPREGS 18
#define SDEI_SAVED_GPREGS 18U
/* Maximum preemption nesting levels: Critical priority and Normal priority */
#define MAX_EVENT_NESTING 2
#define MAX_EVENT_NESTING 2U
/* Per-CPU SDEI state access macro */
#define sdei_get_this_pe_state() (&sdei_cpu_state[plat_my_core_pos()])
#define sdei_get_this_pe_state() (&cpu_state[plat_my_core_pos()])
/* Structure to store information about an outstanding dispatch */
typedef struct sdei_dispatch_context {
@ -48,31 +45,33 @@ typedef struct sdei_dispatch_context {
typedef struct sdei_cpu_state {
sdei_dispatch_context_t dispatch_stack[MAX_EVENT_NESTING];
unsigned short stack_top; /* Empty ascending */
unsigned int pe_masked:1;
unsigned int pending_enables:1;
bool pe_masked;
bool pending_enables;
} sdei_cpu_state_t;
/* SDEI states for all cores in the system */
static sdei_cpu_state_t sdei_cpu_state[PLATFORM_CORE_COUNT];
static sdei_cpu_state_t cpu_state[PLATFORM_CORE_COUNT];
unsigned int sdei_pe_mask(void)
int64_t sdei_pe_mask(void)
{
unsigned int ret;
int64_t ret = 0;
sdei_cpu_state_t *state = sdei_get_this_pe_state();
/*
* Return value indicates whether this call had any effect in the mask
* status of this PE.
*/
ret = (state->pe_masked ^ PE_MASKED);
state->pe_masked = PE_MASKED;
if (!state->pe_masked) {
state->pe_masked = true;
ret = 1;
}
return ret;
}
void sdei_pe_unmask(void)
{
int i;
unsigned int i;
sdei_ev_map_t *map;
sdei_entry_t *se;
sdei_cpu_state_t *state = sdei_get_this_pe_state();
@ -95,8 +94,7 @@ void sdei_pe_unmask(void)
se = get_event_entry(map);
sdei_map_lock(map);
if (is_map_bound(map) &&
GET_EV_STATE(se, ENABLED) &&
if (is_map_bound(map) && GET_EV_STATE(se, ENABLED) &&
(se->reg_flags == SDEI_REGF_RM_PE) &&
(se->affinity == my_mpidr)) {
plat_ic_enable_interrupt(map->intr);
@ -105,8 +103,8 @@ void sdei_pe_unmask(void)
}
}
state->pending_enables = 0;
state->pe_masked = PE_NOT_MASKED;
state->pending_enables = false;
state->pe_masked = false;
}
/* Push a dispatch context to the dispatch stack */
@ -129,7 +127,7 @@ static sdei_dispatch_context_t *pop_dispatch(void)
{
sdei_cpu_state_t *state = sdei_get_this_pe_state();
if (state->stack_top == 0)
if (state->stack_top == 0U)
return NULL;
assert(state->stack_top <= MAX_EVENT_NESTING);
@ -144,27 +142,27 @@ static sdei_dispatch_context_t *get_outstanding_dispatch(void)
{
sdei_cpu_state_t *state = sdei_get_this_pe_state();
if (state->stack_top == 0)
if (state->stack_top == 0U)
return NULL;
assert(state->stack_top <= MAX_EVENT_NESTING);
return &state->dispatch_stack[state->stack_top - 1];
return &state->dispatch_stack[state->stack_top - 1U];
}
static sdei_dispatch_context_t *save_event_ctx(sdei_ev_map_t *map,
void *tgt_ctx)
{
sdei_dispatch_context_t *disp_ctx;
gp_regs_t *tgt_gpregs;
el3_state_t *tgt_el3;
const gp_regs_t *tgt_gpregs;
const el3_state_t *tgt_el3;
assert(tgt_ctx);
assert(tgt_ctx != NULL);
tgt_gpregs = get_gpregs_ctx(tgt_ctx);
tgt_el3 = get_el3state_ctx(tgt_ctx);
disp_ctx = push_dispatch();
assert(disp_ctx);
assert(disp_ctx != NULL);
disp_ctx->map = map;
/* Save general purpose and exception registers */
@ -175,12 +173,12 @@ static sdei_dispatch_context_t *save_event_ctx(sdei_ev_map_t *map,
return disp_ctx;
}
static void restore_event_ctx(sdei_dispatch_context_t *disp_ctx, void *tgt_ctx)
static void restore_event_ctx(const sdei_dispatch_context_t *disp_ctx, void *tgt_ctx)
{
gp_regs_t *tgt_gpregs;
el3_state_t *tgt_el3;
assert(tgt_ctx);
assert(tgt_ctx != NULL);
tgt_gpregs = get_gpregs_ctx(tgt_ctx);
tgt_el3 = get_el3state_ctx(tgt_ctx);
@ -226,7 +224,7 @@ static cpu_context_t *restore_and_resume_ns_context(void)
cm_set_next_eret_context(NON_SECURE);
ns_ctx = cm_get_context(NON_SECURE);
assert(ns_ctx);
assert(ns_ctx != NULL);
return ns_ctx;
}
@ -251,7 +249,7 @@ static void setup_ns_dispatch(sdei_ev_map_t *map, sdei_entry_t *se,
* - x2: Interrupted PC
* - x3: Interrupted SPSR
*/
SMC_SET_GP(ctx, CTX_GPREG_X0, map->ev_num);
SMC_SET_GP(ctx, CTX_GPREG_X0, (uint64_t) map->ev_num);
SMC_SET_GP(ctx, CTX_GPREG_X1, se->arg);
SMC_SET_GP(ctx, CTX_GPREG_X2, disp_ctx->elr_el3);
SMC_SET_GP(ctx, CTX_GPREG_X3, disp_ctx->spsr_el3);
@ -286,7 +284,7 @@ static void handle_masked_trigger(sdei_ev_map_t *map, sdei_entry_t *se,
sdei_cpu_state_t *state, unsigned int intr_raw)
{
uint64_t my_mpidr __unused = (read_mpidr_el1() & MPIDR_AFFINITY_MASK);
int disable = 0;
bool disable = false;
/* Nothing to do for event 0 */
if (map->ev_num == SDEI_EVENT_0)
@ -297,18 +295,17 @@ static void handle_masked_trigger(sdei_ev_map_t *map, sdei_entry_t *se,
* this CPU, we disable interrupt, leave the interrupt pending, and do
* EOI.
*/
if (is_event_private(map)) {
disable = 1;
} else if (se->reg_flags == SDEI_REGF_RM_PE) {
if (is_event_private(map) || (se->reg_flags == SDEI_REGF_RM_PE))
disable = true;
if (se->reg_flags == SDEI_REGF_RM_PE)
assert(se->affinity == my_mpidr);
disable = 1;
}
if (disable) {
plat_ic_disable_interrupt(map->intr);
plat_ic_set_interrupt_pending(map->intr);
plat_ic_end_of_interrupt(intr_raw);
state->pending_enables = 1;
state->pending_enables = true;
return;
}
@ -321,7 +318,7 @@ static void handle_masked_trigger(sdei_ev_map_t *map, sdei_entry_t *se,
* Therefore, we set the interrupt back pending so as to give other
* suitable PEs a chance of handling it.
*/
assert(plat_ic_is_spi(map->intr));
assert(plat_ic_is_spi(map->intr) != 0);
plat_ic_set_interrupt_pending(map->intr);
/*
@ -344,11 +341,12 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
sdei_entry_t *se;
cpu_context_t *ctx;
sdei_ev_map_t *map;
sdei_dispatch_context_t *disp_ctx;
const sdei_dispatch_context_t *disp_ctx;
unsigned int sec_state;
sdei_cpu_state_t *state;
uint32_t intr;
struct jmpbuf dispatch_jmp;
const uint64_t mpidr = read_mpidr_el1();
/*
* To handle an event, the following conditions must be true:
@ -374,8 +372,8 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
* this interrupt
*/
intr = plat_ic_get_interrupt_id(intr_raw);
map = find_event_map_by_intr(intr, plat_ic_is_spi(intr));
if (!map) {
map = find_event_map_by_intr(intr, (plat_ic_is_spi(intr) != 0));
if (map == NULL) {
ERROR("No SDEI map for interrupt %u\n", intr);
panic();
}
@ -389,13 +387,13 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
se = get_event_entry(map);
state = sdei_get_this_pe_state();
if (state->pe_masked == PE_MASKED) {
if (state->pe_masked) {
/*
* Interrupts received while this PE was masked can't be
* dispatched.
*/
SDEI_LOG("interrupt %u on %lx while PE masked\n", map->intr,
read_mpidr_el1());
SDEI_LOG("interrupt %u on %llx while PE masked\n", map->intr,
mpidr);
if (is_event_shared(map))
sdei_map_lock(map);
@ -416,8 +414,7 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
/* Assert shared event routed to this PE had been configured so */
if (is_event_shared(map) && (se->reg_flags == SDEI_REGF_RM_PE)) {
assert(se->affinity ==
(read_mpidr_el1() & MPIDR_AFFINITY_MASK));
assert(se->affinity == (mpidr & MPIDR_AFFINITY_MASK));
}
if (!can_sdei_state_trans(se, DO_DISPATCH)) {
@ -451,7 +448,7 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
* dispatch, assert the latter is a Normal dispatch. Critical
* events can preempt an outstanding Normal event dispatch.
*/
if (disp_ctx)
if (disp_ctx != NULL)
assert(is_event_normal(disp_ctx->map));
} else {
/*
@ -467,9 +464,8 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
if (is_event_shared(map))
sdei_map_unlock(map);
SDEI_LOG("ACK %lx, ev:%d ss:%d spsr:%lx ELR:%lx\n", read_mpidr_el1(),
map->ev_num, sec_state, read_spsr_el3(),
read_elr_el3());
SDEI_LOG("ACK %llx, ev:%d ss:%d spsr:%lx ELR:%lx\n", mpidr, map->ev_num,
sec_state, read_spsr_el3(), read_elr_el3());
ctx = handle;
@ -497,7 +493,7 @@ int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
* Non-secure context was fully saved before dispatch, and has been
* returned to its pre-dispatch state.
*/
if ((sec_state == SECURE) && (ehf_is_ns_preemption_allowed() == 0))
if ((sec_state == SECURE) && (ehf_is_ns_preemption_allowed() == 0U))
restore_and_resume_secure_context();
/*
@ -539,7 +535,7 @@ int sdei_dispatch_event(int ev_num)
/* Can't dispatch if events are masked on this PE */
state = sdei_get_this_pe_state();
if (state->pe_masked == PE_MASKED)
if (state->pe_masked)
return -1;
/* Event 0 can't be dispatched */
@ -548,7 +544,7 @@ int sdei_dispatch_event(int ev_num)
/* Locate mapping corresponding to this event */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return -1;
/* Only explicit events can be dispatched */
@ -557,7 +553,7 @@ int sdei_dispatch_event(int ev_num)
/* Examine state of dispatch stack */
disp_ctx = get_outstanding_dispatch();
if (disp_ctx) {
if (disp_ctx != NULL) {
/*
* There's an outstanding dispatch. If the outstanding dispatch
* is critical, no more dispatches are possible.
@ -606,7 +602,7 @@ static void end_sdei_synchronous_dispatch(struct jmpbuf *buffer)
longjmp(buffer);
}
int sdei_event_complete(int resume, uint64_t pc)
int sdei_event_complete(bool resume, uint64_t pc)
{
sdei_dispatch_context_t *disp_ctx;
sdei_entry_t *se;
@ -617,7 +613,7 @@ int sdei_event_complete(int resume, uint64_t pc)
/* Return error if called without an active event */
disp_ctx = get_outstanding_dispatch();
if (!disp_ctx)
if (disp_ctx == NULL)
return SDEI_EDENY;
/* Validate resumption point */
@ -625,7 +621,7 @@ int sdei_event_complete(int resume, uint64_t pc)
return SDEI_EDENY;
map = disp_ctx->map;
assert(map);
assert(map != NULL);
se = get_event_entry(map);
act = resume ? DO_COMPLETE_RESUME : DO_COMPLETE;
@ -636,7 +632,7 @@ int sdei_event_complete(int resume, uint64_t pc)
}
/* Having done sanity checks, pop dispatch */
pop_dispatch();
(void) pop_dispatch();
SDEI_LOG("EOI:%lx, %d spsr:%lx elr:%lx\n", read_mpidr_el1(),
map->ev_num, read_spsr_el3(), read_elr_el3());
@ -684,7 +680,7 @@ int sdei_event_complete(int resume, uint64_t pc)
return 0;
}
int sdei_event_context(void *handle, unsigned int param)
int64_t sdei_event_context(void *handle, unsigned int param)
{
sdei_dispatch_context_t *disp_ctx;
@ -693,10 +689,10 @@ int sdei_event_context(void *handle, unsigned int param)
/* Get outstanding dispatch on this CPU */
disp_ctx = get_outstanding_dispatch();
if (!disp_ctx)
if (disp_ctx == NULL)
return SDEI_EDENY;
assert(disp_ctx->map);
assert(disp_ctx->map != NULL);
if (!can_sdei_state_trans(get_event_entry(disp_ctx->map), DO_CONTEXT))
return SDEI_EDENY;
@ -706,5 +702,5 @@ int sdei_event_context(void *handle, unsigned int param)
* which can complete the event
*/
return disp_ctx->x[param];
return (int64_t) disp_ctx->x[param];
}

232
services/std_svc/sdei/sdei_main.c
View file

@ -22,14 +22,12 @@
#include <utils.h>
#include "sdei_private.h"
#define MAJOR_VERSION 1
#define MINOR_VERSION 0
#define VENDOR_VERSION 0
#define MAJOR_VERSION 1ULL
#define MINOR_VERSION 0ULL
#define VENDOR_VERSION 0ULL
#define MAKE_SDEI_VERSION(_major, _minor, _vendor) \
((((unsigned long long)(_major)) << 48) | \
(((unsigned long long)(_minor)) << 32) | \
(_vendor))
((((_major)) << 48ULL) | (((_minor)) << 32ULL) | (_vendor))
#define LOWEST_INTR_PRIORITY 0xff
@ -47,7 +45,7 @@ static void init_map(sdei_ev_map_t *map)
}
/* Convert mapping to SDEI class */
sdei_class_t map_to_class(sdei_ev_map_t *map)
static sdei_class_t map_to_class(sdei_ev_map_t *map)
{
return is_event_critical(map) ? SDEI_CRITICAL : SDEI_NORMAL;
}
@ -64,7 +62,7 @@ static void clear_event_entries(sdei_entry_t *se)
/* Perform CPU-specific state initialisation */
static void *sdei_cpu_on_init(const void *arg)
{
int i;
unsigned int i;
sdei_ev_map_t *map;
sdei_entry_t *se;
@ -78,15 +76,16 @@ static void *sdei_cpu_on_init(const void *arg)
SDEI_LOG("Private events initialized on %lx\n", read_mpidr_el1());
/* All PEs start with SDEI events masked */
sdei_pe_mask();
(void) sdei_pe_mask();
return 0;
return NULL;
}
/* Initialise an SDEI class */
void sdei_class_init(sdei_class_t class)
static void sdei_class_init(sdei_class_t class)
{
unsigned int i, zero_found __unused = 0;
unsigned int i;
bool zero_found __unused = false;
int ev_num_so_far __unused;
sdei_ev_map_t *map;
@ -126,7 +125,7 @@ void sdei_class_init(sdei_class_t class)
num_dyn_shrd_slots++;
} else {
/* Shared mappings must be bound to shared interrupt */
assert(plat_ic_is_spi(map->intr));
assert(plat_ic_is_spi(map->intr) != 0);
set_map_bound(map);
}
@ -143,7 +142,7 @@ void sdei_class_init(sdei_class_t class)
ev_num_so_far = map->ev_num;
if (map->ev_num == SDEI_EVENT_0) {
zero_found = 1;
zero_found = true;
/* Event 0 must be a Secure SGI */
assert(is_secure_sgi(map->intr));
@ -197,7 +196,7 @@ void sdei_class_init(sdei_class_t class)
* Private mappings must be bound to private
* interrupt.
*/
assert(plat_ic_is_ppi(map->intr));
assert(plat_ic_is_ppi((unsigned) map->intr) != 0);
set_map_bound(map);
}
}
@ -208,7 +207,7 @@ void sdei_class_init(sdei_class_t class)
/* Ensure event 0 is in the mapping */
assert(zero_found);
sdei_cpu_on_init(NULL);
(void) sdei_cpu_on_init(NULL);
}
/* SDEI dispatcher initialisation */
@ -236,7 +235,7 @@ static void set_sdei_entry(sdei_entry_t *se, uint64_t ep, uint64_t arg,
se->reg_flags = flags;
}
static unsigned long long sdei_version(void)
static uint64_t sdei_version(void)
{
return MAKE_SDEI_VERSION(MAJOR_VERSION, MINOR_VERSION, VENDOR_VERSION);
}
@ -263,17 +262,18 @@ static int validate_flags(uint64_t flags, uint64_t mpidr)
/* Set routing of an SDEI event */
static int sdei_event_routing_set(int ev_num, uint64_t flags, uint64_t mpidr)
{
int ret, routing;
int ret;
unsigned int routing;
sdei_ev_map_t *map;
sdei_entry_t *se;
ret = validate_flags(flags, mpidr);
if (ret)
if (ret != 0)
return ret;
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
/* The event must not be private */
@ -295,11 +295,11 @@ static int sdei_event_routing_set(int ev_num, uint64_t flags, uint64_t mpidr)
}
/* Choose appropriate routing */
routing = (flags == SDEI_REGF_RM_ANY) ? INTR_ROUTING_MODE_ANY :
INTR_ROUTING_MODE_PE;
routing = (unsigned int) ((flags == SDEI_REGF_RM_ANY) ?
INTR_ROUTING_MODE_ANY : INTR_ROUTING_MODE_PE);
/* Update event registration flag */
se->reg_flags = flags;
se->reg_flags = (unsigned int) flags;
/*
* ROUTING_SET is permissible only when event composite state is
@ -315,24 +315,27 @@ finish:
}
/* Register handler and argument for an SDEI event */
static int sdei_event_register(int ev_num, uint64_t ep, uint64_t arg,
static int64_t sdei_event_register(int ev_num, uint64_t ep, uint64_t arg,
uint64_t flags, uint64_t mpidr)
{
int ret;
unsigned int routing;
sdei_entry_t *se;
sdei_ev_map_t *map;
sdei_state_t backup_state;
if (!ep || (plat_sdei_validate_entry_point(ep, sdei_client_el()) != 0))
if ((ep == 0U) || (plat_sdei_validate_entry_point(
ep, sdei_client_el()) != 0)) {
return SDEI_EINVAL;
}
ret = validate_flags(flags, mpidr);
if (ret)
if (ret != 0)
return ret;
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
/* Private events always target the PE */
@ -371,7 +374,7 @@ static int sdei_event_register(int ev_num, uint64_t ep, uint64_t arg,
if (is_map_bound(map)) {
/* Meanwhile, did any PE ACK the interrupt? */
if (plat_ic_get_interrupt_active(map->intr))
if (plat_ic_get_interrupt_active(map->intr) != 0U)
goto fallback;
/* The interrupt must currently owned by Non-secure */
@ -404,16 +407,15 @@ static int sdei_event_register(int ev_num, uint64_t ep, uint64_t arg,
* already ensure that shared events get bound to SPIs.
*/
if (is_event_shared(map)) {
plat_ic_set_spi_routing(map->intr,
((flags == SDEI_REGF_RM_ANY) ?
INTR_ROUTING_MODE_ANY :
INTR_ROUTING_MODE_PE),
routing = (unsigned int) ((flags == SDEI_REGF_RM_ANY) ?
INTR_ROUTING_MODE_ANY : INTR_ROUTING_MODE_PE);
plat_ic_set_spi_routing(map->intr, routing,
(u_register_t) mpidr);
}
}
/* Populate event entries */
set_sdei_entry(se, ep, arg, flags, mpidr);
set_sdei_entry(se, ep, arg, (unsigned int) flags, mpidr);
/* Increment register count */
map->reg_count++;
@ -432,15 +434,16 @@ fallback:
}
/* Enable SDEI event */
static int sdei_event_enable(int ev_num)
static int64_t sdei_event_enable(int ev_num)
{
sdei_ev_map_t *map;
sdei_entry_t *se;
int ret, before, after;
int ret;
bool before, after;
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
se = get_event_entry(map);
@ -475,11 +478,12 @@ static int sdei_event_disable(int ev_num)
{
sdei_ev_map_t *map;
sdei_entry_t *se;
int ret, before, after;
int ret;
bool before, after;
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
se = get_event_entry(map);
@ -510,17 +514,18 @@ finish:
}
/* Query SDEI event information */
static uint64_t sdei_event_get_info(int ev_num, int info)
static int64_t sdei_event_get_info(int ev_num, int info)
{
sdei_entry_t *se;
sdei_ev_map_t *map;
unsigned int flags, registered;
uint64_t flags;
bool registered;
uint64_t affinity;
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
se = get_event_entry(map);
@ -576,7 +581,7 @@ static int sdei_event_unregister(int ev_num)
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
se = get_event_entry(map);
@ -648,7 +653,7 @@ static int sdei_event_status(int ev_num)
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
se = get_event_entry(map);
@ -662,27 +667,27 @@ static int sdei_event_status(int ev_num)
if (is_event_shared(map))
sdei_map_unlock(map);
return state;
return (int) state;
}
/* Bind an SDEI event to an interrupt */
static int sdei_interrupt_bind(int intr_num)
static int sdei_interrupt_bind(unsigned int intr_num)
{
sdei_ev_map_t *map;
int retry = 1, shared_mapping;
bool retry = true, shared_mapping;
/* SGIs are not allowed to be bound */
if (plat_ic_is_sgi(intr_num))
if (plat_ic_is_sgi(intr_num) != 0)
return SDEI_EINVAL;
shared_mapping = plat_ic_is_spi(intr_num);
shared_mapping = (plat_ic_is_spi(intr_num) != 0);
do {
/*
* Bail out if there is already an event for this interrupt,
* either platform-defined or dynamic.
*/
map = find_event_map_by_intr(intr_num, shared_mapping);
if (map) {
if (map != NULL) {
if (is_map_dynamic(map)) {
if (is_map_bound(map)) {
/*
@ -703,7 +708,7 @@ static int sdei_interrupt_bind(int intr_num)
* SDEI_DYN_IRQ.
*/
map = find_event_map_by_intr(SDEI_DYN_IRQ, shared_mapping);
if (!map)
if (map == NULL)
return SDEI_ENOMEM;
/* The returned mapping must be dynamic */
@ -727,7 +732,7 @@ static int sdei_interrupt_bind(int intr_num)
if (!is_map_bound(map)) {
map->intr = intr_num;
set_map_bound(map);
retry = 0;
retry = false;
}
sdei_map_unlock(map);
} while (retry);
@ -744,7 +749,7 @@ static int sdei_interrupt_release(int ev_num)
/* Check if valid event number */
map = find_event_map(ev_num);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
if (!is_map_dynamic(map))
@ -774,7 +779,7 @@ static int sdei_interrupt_release(int ev_num)
* Deny release if the interrupt is active, which means it's
* probably being acknowledged and handled elsewhere.
*/
if (plat_ic_get_interrupt_active(map->intr)) {
if (plat_ic_get_interrupt_active(map->intr) != 0U) {
ret = SDEI_EDENY;
goto finish;
}
@ -802,7 +807,8 @@ finish:
static int sdei_private_reset(void)
{
sdei_ev_map_t *map;
int ret = 0, final_ret = 0, i;
int ret = 0, final_ret = 0;
unsigned int i;
/* Unregister all private events */
for_each_private_map(i, map) {
@ -824,7 +830,8 @@ static int sdei_shared_reset(void)
{
const sdei_mapping_t *mapping;
sdei_ev_map_t *map;
int ret = 0, final_ret = 0, i, j;
int ret = 0, final_ret = 0;
unsigned int i, j;
/* Unregister all shared events */
for_each_shared_map(i, map) {
@ -867,17 +874,17 @@ static int sdei_shared_reset(void)
}
/* Send a signal to another SDEI client PE */
int sdei_signal(int event, uint64_t target_pe)
static int sdei_signal(int ev_num, uint64_t target_pe)
{
sdei_ev_map_t *map;
/* Only event 0 can be signalled */
if (event != SDEI_EVENT_0)
if (ev_num != SDEI_EVENT_0)
return SDEI_EINVAL;
/* Find mapping for event 0 */
map = find_event_map(SDEI_EVENT_0);
if (!map)
if (map == NULL)
return SDEI_EINVAL;
/* The event must be signalable */
@ -889,20 +896,20 @@ int sdei_signal(int event, uint64_t target_pe)
return SDEI_EINVAL;
/* Raise SGI. Platform will validate target_pe */
plat_ic_raise_el3_sgi(map->intr, (u_register_t) target_pe);
plat_ic_raise_el3_sgi((int) map->intr, (u_register_t) target_pe);
return 0;
}
/* Query SDEI dispatcher features */
uint64_t sdei_features(unsigned int feature)
static uint64_t sdei_features(unsigned int feature)
{
if (feature == SDEI_FEATURE_BIND_SLOTS) {
return FEATURE_BIND_SLOTS(num_dyn_priv_slots,
num_dyn_shrd_slots);
}
return SDEI_EINVAL;
return (uint64_t) SDEI_EINVAL;
}
/* SDEI top level handler for servicing SMCs */
@ -917,56 +924,59 @@ uint64_t sdei_smc_handler(uint32_t smc_fid,
{
uint64_t x5;
int ss = get_interrupt_src_ss(flags);
unsigned int ss = (unsigned int) get_interrupt_src_ss(flags);
int64_t ret;
unsigned int resume = 0;
bool resume = false;
cpu_context_t *ctx = handle;
int ev_num = (int) x1;
if (ss != NON_SECURE)
SMC_RET1(handle, SMC_UNK);
SMC_RET1(ctx, SMC_UNK);
/* Verify the caller EL */
if (GET_EL(read_spsr_el3()) != sdei_client_el())
SMC_RET1(handle, SMC_UNK);
SMC_RET1(ctx, SMC_UNK);
switch (smc_fid) {
case SDEI_VERSION:
SDEI_LOG("> VER\n");
ret = sdei_version();
ret = (int64_t) sdei_version();
SDEI_LOG("< VER:%llx\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_REGISTER:
x5 = SMC_GET_GP(handle, CTX_GPREG_X5);
SDEI_LOG("> REG(n:%d e:%llx a:%llx f:%x m:%llx)\n", (int) x1,
x5 = SMC_GET_GP(ctx, CTX_GPREG_X5);
SDEI_LOG("> REG(n:%d e:%llx a:%llx f:%x m:%llx)\n", ev_num,
x2, x3, (int) x4, x5);
ret = sdei_event_register(x1, x2, x3, x4, x5);
ret = sdei_event_register(ev_num, x2, x3, x4, x5);
SDEI_LOG("< REG:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_ENABLE:
SDEI_LOG("> ENABLE(n:%d)\n", (int) x1);
ret = sdei_event_enable(x1);
ret = sdei_event_enable(ev_num);
SDEI_LOG("< ENABLE:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_DISABLE:
SDEI_LOG("> DISABLE(n:%d)\n", (int) x1);
ret = sdei_event_disable(x1);
SDEI_LOG("> DISABLE(n:%d)\n", ev_num);
ret = sdei_event_disable(ev_num);
SDEI_LOG("< DISABLE:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_CONTEXT:
SDEI_LOG("> CTX(p:%d):%lx\n", (int) x1, read_mpidr_el1());
ret = sdei_event_context(handle, x1);
ret = sdei_event_context(ctx, (unsigned int) x1);
SDEI_LOG("< CTX:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_COMPLETE_AND_RESUME:
resume = 1;
resume = true;
/* Fallthrough */
case SDEI_EVENT_COMPLETE:
SDEI_LOG("> COMPLETE(r:%d sta/ep:%llx):%lx\n", resume, x1,
read_mpidr_el1());
SDEI_LOG("> COMPLETE(r:%u sta/ep:%llx):%lx\n",
(unsigned int) resume, x1, read_mpidr_el1());
ret = sdei_event_complete(resume, x1);
SDEI_LOG("< COMPLETE:%llx\n", ret);
@ -977,82 +987,82 @@ uint64_t sdei_smc_handler(uint32_t smc_fid,
* shouldn't be modified. We don't return to the caller in this
* case anyway.
*/
if (ret)
SMC_RET1(handle, ret);
if (ret != 0)
SMC_RET1(ctx, ret);
SMC_RET0(handle);
SMC_RET0(ctx);
case SDEI_EVENT_STATUS:
SDEI_LOG("> STAT(n:%d)\n", (int) x1);
ret = sdei_event_status(x1);
SDEI_LOG("> STAT(n:%d)\n", ev_num);
ret = sdei_event_status(ev_num);
SDEI_LOG("< STAT:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_GET_INFO:
SDEI_LOG("> INFO(n:%d, %d)\n", (int) x1, (int) x2);
ret = sdei_event_get_info(x1, x2);
SDEI_LOG("> INFO(n:%d, %d)\n", ev_num, (int) x2);
ret = sdei_event_get_info(ev_num, (int) x2);
SDEI_LOG("< INFO:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_UNREGISTER:
SDEI_LOG("> UNREG(n:%d)\n", (int) x1);
ret = sdei_event_unregister(x1);
SDEI_LOG("> UNREG(n:%d)\n", ev_num);
ret = sdei_event_unregister(ev_num);
SDEI_LOG("< UNREG:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_PE_UNMASK:
SDEI_LOG("> UNMASK:%lx\n", read_mpidr_el1());
sdei_pe_unmask();
SDEI_LOG("< UNMASK:%d\n", 0);
SMC_RET1(handle, 0);
SMC_RET1(ctx, 0);
case SDEI_PE_MASK:
SDEI_LOG("> MASK:%lx\n", read_mpidr_el1());
ret = sdei_pe_mask();
SDEI_LOG("< MASK:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_INTERRUPT_BIND:
SDEI_LOG("> BIND(%d)\n", (int) x1);
ret = sdei_interrupt_bind(x1);
ret = sdei_interrupt_bind((unsigned int) x1);
SDEI_LOG("< BIND:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_INTERRUPT_RELEASE:
SDEI_LOG("> REL(%d)\n", (int) x1);
ret = sdei_interrupt_release(x1);
SDEI_LOG("> REL(%d)\n", ev_num);
ret = sdei_interrupt_release(ev_num);
SDEI_LOG("< REL:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_SHARED_RESET:
SDEI_LOG("> S_RESET():%lx\n", read_mpidr_el1());
ret = sdei_shared_reset();
SDEI_LOG("< S_RESET:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_PRIVATE_RESET:
SDEI_LOG("> P_RESET():%lx\n", read_mpidr_el1());
ret = sdei_private_reset();
SDEI_LOG("< P_RESET:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_ROUTING_SET:
SDEI_LOG("> ROUTE_SET(n:%d f:%llx aff:%llx)\n", (int) x1, x2, x3);
ret = sdei_event_routing_set(x1, x2, x3);
SDEI_LOG("> ROUTE_SET(n:%d f:%llx aff:%llx)\n", ev_num, x2, x3);
ret = sdei_event_routing_set(ev_num, x2, x3);
SDEI_LOG("< ROUTE_SET:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_FEATURES:
SDEI_LOG("> FTRS(f:%llx)\n", x1);
ret = sdei_features(x1);
ret = (int64_t) sdei_features((unsigned int) x1);
SDEI_LOG("< FTRS:%llx\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
case SDEI_EVENT_SIGNAL:
SDEI_LOG("> SIGNAL(e:%llx t:%llx)\n", x1, x2);
ret = sdei_signal(x1, x2);
SDEI_LOG("> SIGNAL(e:%d t:%llx)\n", ev_num, x2);
ret = sdei_signal(ev_num, x2);
SDEI_LOG("< SIGNAL:%lld\n", ret);
SMC_RET1(handle, ret);
SMC_RET1(ctx, ret);
default:
/* Do nothing in default case */
@ -1060,7 +1070,7 @@ uint64_t sdei_smc_handler(uint32_t smc_fid,
}
WARN("Unimplemented SDEI Call: 0x%x\n", smc_fid);
SMC_RET1(handle, SMC_UNK);
SMC_RET1(ctx, SMC_UNK);
}
/* Subscribe to PSCI CPU on to initialize per-CPU SDEI configuration */

102
services/std_svc/sdei/sdei_private.h
View file

@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __SDEI_PRIVATE_H__
#define __SDEI_PRIVATE_H__
#ifndef SDEI_PRIVATE_H
#define SDEI_PRIVATE_H
#include <arch_helpers.h>
#include <context_mgmt.h>
@ -36,12 +36,12 @@
#define SDEI_LOG(...) VERBOSE("SDEI: " __VA_ARGS__)
/* SDEI handler unregistered state. This is the default state. */
#define SDEI_STATE_UNREGISTERED 0
#define SDEI_STATE_UNREGISTERED 0U
/* SDE event status values in bit position */
#define SDEI_STATF_REGISTERED 0
#define SDEI_STATF_ENABLED 1
#define SDEI_STATF_RUNNING 2
#define SDEI_STATF_REGISTERED 0U
#define SDEI_STATF_ENABLED 1U
#define SDEI_STATF_RUNNING 2U
/* SDEI SMC error codes */
#define SDEI_EINVAL (-2)
@ -62,18 +62,18 @@
#define SDEI_INFO_EV_ROUTING_MODE 3
#define SDEI_INFO_EV_ROUTING_AFF 4
#define SDEI_PRIVATE_MAPPING() (&sdei_global_mappings[_SDEI_MAP_IDX_PRIV])
#define SDEI_SHARED_MAPPING() (&sdei_global_mappings[_SDEI_MAP_IDX_SHRD])
#define SDEI_PRIVATE_MAPPING() (&sdei_global_mappings[SDEI_MAP_IDX_PRIV_])
#define SDEI_SHARED_MAPPING() (&sdei_global_mappings[SDEI_MAP_IDX_SHRD_])
#define for_each_mapping_type(_i, _mapping) \
for (_i = 0, _mapping = &sdei_global_mappings[i]; \
_i < _SDEI_MAP_IDX_MAX; \
_i++, _mapping = &sdei_global_mappings[i])
for ((_i) = 0, (_mapping) = &sdei_global_mappings[(_i)]; \
(_i) < SDEI_MAP_IDX_MAX_; \
(_i)++, (_mapping) = &sdei_global_mappings[(_i)])
#define iterate_mapping(_mapping, _i, _map) \
for (_map = (_mapping)->map, _i = 0; \
_i < (_mapping)->num_maps; \
_i++, _map++)
for ((_map) = (_mapping)->map, (_i) = 0; \
(_i) < (_mapping)->num_maps; \
(_i)++, (_map)++)
#define for_each_private_map(_i, _map) \
iterate_mapping(SDEI_PRIVATE_MAPPING(), _i, _map)
@ -82,45 +82,45 @@
iterate_mapping(SDEI_SHARED_MAPPING(), _i, _map)
/* SDEI_FEATURES */
#define SDEI_FEATURE_BIND_SLOTS 0
#define BIND_SLOTS_MASK 0xffff
#define FEATURES_SHARED_SLOTS_SHIFT 16
#define FEATURES_PRIVATE_SLOTS_SHIFT 0
#define SDEI_FEATURE_BIND_SLOTS 0U
#define BIND_SLOTS_MASK 0xffffU
#define FEATURES_SHARED_SLOTS_SHIFT 16U
#define FEATURES_PRIVATE_SLOTS_SHIFT 0U
#define FEATURE_BIND_SLOTS(_priv, _shrd) \
((((_priv) & BIND_SLOTS_MASK) << FEATURES_PRIVATE_SLOTS_SHIFT) | \
(((_shrd) & BIND_SLOTS_MASK) << FEATURES_SHARED_SLOTS_SHIFT))
(((((uint64_t) (_priv)) & BIND_SLOTS_MASK) << FEATURES_PRIVATE_SLOTS_SHIFT) | \
((((uint64_t) (_shrd)) & BIND_SLOTS_MASK) << FEATURES_SHARED_SLOTS_SHIFT))
#define GET_EV_STATE(_e, _s) get_ev_state_bit(_e, SDEI_STATF_##_s)
#define SET_EV_STATE(_e, _s) clr_ev_state_bit(_e->state, SDEI_STATF_##_s)
static inline int is_event_private(sdei_ev_map_t *map)
static inline bool is_event_private(sdei_ev_map_t *map)
{
return ((map->map_flags & BIT(_SDEI_MAPF_PRIVATE_SHIFT)) != 0);
return ((map->map_flags & BIT_32(SDEI_MAPF_PRIVATE_SHIFT_)) != 0U);
}
static inline int is_event_shared(sdei_ev_map_t *map)
static inline bool is_event_shared(sdei_ev_map_t *map)
{
return !is_event_private(map);
}
static inline int is_event_critical(sdei_ev_map_t *map)
static inline bool is_event_critical(sdei_ev_map_t *map)
{
return ((map->map_flags & BIT(_SDEI_MAPF_CRITICAL_SHIFT)) != 0);
return ((map->map_flags & BIT_32(SDEI_MAPF_CRITICAL_SHIFT_)) != 0U);
}
static inline int is_event_normal(sdei_ev_map_t *map)
static inline bool is_event_normal(sdei_ev_map_t *map)
{
return !is_event_critical(map);
}
static inline int is_event_signalable(sdei_ev_map_t *map)
static inline bool is_event_signalable(sdei_ev_map_t *map)
{
return ((map->map_flags & BIT(_SDEI_MAPF_SIGNALABLE_SHIFT)) != 0);
return ((map->map_flags & BIT_32(SDEI_MAPF_SIGNALABLE_SHIFT_)) != 0U);
}
static inline int is_map_dynamic(sdei_ev_map_t *map)
static inline bool is_map_dynamic(sdei_ev_map_t *map)
{
return ((map->map_flags & BIT(_SDEI_MAPF_DYNAMIC_SHIFT)) != 0);
return ((map->map_flags & BIT_32(SDEI_MAPF_DYNAMIC_SHIFT_)) != 0U);
}
/*
@ -129,29 +129,29 @@ static inline int is_map_dynamic(sdei_ev_map_t *map)
* called on them. This can be used on both static or dynamic events to check
* for an associated interrupt.
*/
static inline int is_map_bound(sdei_ev_map_t *map)
static inline bool is_map_bound(sdei_ev_map_t *map)
{
return ((map->map_flags & BIT(_SDEI_MAPF_BOUND_SHIFT)) != 0);
return ((map->map_flags & BIT_32(SDEI_MAPF_BOUND_SHIFT_)) != 0U);
}
static inline void set_map_bound(sdei_ev_map_t *map)
{
map->map_flags |= BIT(_SDEI_MAPF_BOUND_SHIFT);
map->map_flags |= BIT_32(SDEI_MAPF_BOUND_SHIFT_);
}
static inline int is_map_explicit(sdei_ev_map_t *map)
static inline bool is_map_explicit(sdei_ev_map_t *map)
{
return ((map->map_flags & BIT(_SDEI_MAPF_EXPLICIT_SHIFT)) != 0);
return ((map->map_flags & BIT_32(SDEI_MAPF_EXPLICIT_SHIFT_)) != 0U);
}
static inline void clr_map_bound(sdei_ev_map_t *map)
{
map->map_flags &= ~(BIT(_SDEI_MAPF_BOUND_SHIFT));
map->map_flags &= ~BIT_32(SDEI_MAPF_BOUND_SHIFT_);
}
static inline int is_secure_sgi(unsigned int intr)
static inline bool is_secure_sgi(unsigned int intr)
{
return (plat_ic_is_sgi(intr) &&
return ((plat_ic_is_sgi(intr) != 0) &&
(plat_ic_get_interrupt_type(intr) == INTR_TYPE_EL3));
}
@ -164,24 +164,24 @@ static inline unsigned int sdei_client_el(void)
cpu_context_t *ns_ctx = cm_get_context(NON_SECURE);
el3_state_t *el3_ctx = get_el3state_ctx(ns_ctx);
return read_ctx_reg(el3_ctx, CTX_SCR_EL3) & SCR_HCE_BIT ? MODE_EL2 :
MODE_EL1;
return ((read_ctx_reg(el3_ctx, CTX_SCR_EL3) & SCR_HCE_BIT) != 0U) ?
MODE_EL2 : MODE_EL1;
}
static inline unsigned int sdei_event_priority(sdei_ev_map_t *map)
{
return is_event_critical(map) ? PLAT_SDEI_CRITICAL_PRI :
PLAT_SDEI_NORMAL_PRI;
return (unsigned int) (is_event_critical(map) ? PLAT_SDEI_CRITICAL_PRI :
PLAT_SDEI_NORMAL_PRI);
}
static inline int get_ev_state_bit(sdei_entry_t *se, unsigned int bit_no)
static inline bool get_ev_state_bit(sdei_entry_t *se, unsigned int bit_no)
{
return ((se->state & BIT(bit_no)) != 0);
return ((se->state & BIT_32(bit_no)) != 0U);
}
static inline void clr_ev_state_bit(sdei_entry_t *se, unsigned int bit_no)
{
se->state &= ~BIT(bit_no);
se->state &= ~BIT_32(bit_no);
}
/* SDEI actions for state transition */
@ -228,19 +228,19 @@ extern sdei_entry_t sdei_shared_event_table[];
void init_sdei_state(void);
sdei_ev_map_t *find_event_map_by_intr(int intr_num, int shared);
sdei_ev_map_t *find_event_map_by_intr(unsigned int intr_num, bool shared);
sdei_ev_map_t *find_event_map(int ev_num);
sdei_entry_t *get_event_entry(sdei_ev_map_t *map);
int sdei_event_context(void *handle, unsigned int param);
int sdei_event_complete(int resume, uint64_t arg);
int64_t sdei_event_context(void *handle, unsigned int param);
int sdei_event_complete(bool resume, uint64_t pc);
void sdei_pe_unmask(void);
unsigned int sdei_pe_mask(void);
int64_t sdei_pe_mask(void);
int sdei_intr_handler(uint32_t intr, uint32_t flags, void *handle,
int sdei_intr_handler(uint32_t intr_raw, uint32_t flags, void *handle,
void *cookie);
bool can_sdei_state_trans(sdei_entry_t *se, sdei_action_t act);
void begin_sdei_synchronous_dispatch(struct jmpbuf *buffer);
#endif /* __SDEI_PRIVATE_H__ */
#endif /* SDEI_PRIVATE_H */

8
services/std_svc/sdei/sdei_state.c
View file

@ -10,13 +10,13 @@
#include "sdei_private.h"
/* Aliases for SDEI handler states: 'R'unning, 'E'nabled, and re'G'istered */
#define r_ 0
#define r_ 0U
#define R_ (1u << SDEI_STATF_RUNNING)
#define e_ 0
#define e_ 0U
#define E_ (1u << SDEI_STATF_ENABLED)
#define g_ 0
#define g_ 0U
#define G_ (1u << SDEI_STATF_REGISTERED)
/* All possible composite handler states */
@ -29,7 +29,7 @@
#define REg_ (R_ | E_ | g_)
#define REG_ (R_ | E_ | G_)
#define MAX_STATES (REG_ + 1)
#define MAX_STATES (REG_ + 1u)
/* Invalid state */
#define SDEI_STATE_INVALID ((sdei_state_t) (-1))