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arm64: psci: use struct cpu_action to track startup entry 

The struct cpu_action already tracks entry/arg pointers. Use that
instead of duplicating the same information.

BUG=chrome-os-partner:32112
BRANCH=None
TEST=Built and booted.

Change-Id: I70e1b471ca15eac2ea4e6ca3dab7d8dc2774a241
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: cdddfd8d74d227cb5cbdf15b6871480839fa20d8
Original-Change-Id: I4070ef0df19bb1141a1a47c4570a894928d6a5a4
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/227549
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9396
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Aaron Durbin 2014-11-05 10:45:05 -06:00 committed by Patrick Georgi
parent be3e2387c6
commit 9fd7b1c1a9
3 changed files with 19 additions and 13 deletions
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25
src/arch/arm64/armv8/secmon/psci.c
View File

@ -170,17 +170,16 @@ static void psci_cpu_on_callback(void *arg)
memset(&state, 0, sizeof(state));
state.elx.spsr = get_eret_el(target_el, SPSR_USE_H);
transition_with_entry(e->cpu_state.entry, e->cpu_state.arg, &state);
transition_with_entry(e->cpu_state.startup.run,
e->cpu_state.startup.arg, &state);
}
static void psci_cpu_on_prepare(struct psci_node *e,
void *entry, void *arg)
static void psci_cpu_on_prepare(struct psci_node *e, const struct cpu_action *a)
{
struct psci_node *ancestor;
int state = PSCI_STATE_ON_PENDING;
e->cpu_state.entry = entry;
e->cpu_state.arg = arg;
e->cpu_state.startup = *a;
ancestor = psci_find_ancestor(e, PSCI_AFFINITY_LEVEL_HIGHEST, state);
e->cpu_state.ancestor = ancestor;
psci_set_hierarchy_state(e, ancestor, state);
@ -188,18 +187,23 @@ static void psci_cpu_on_prepare(struct psci_node *e,
static int psci_schedule_cpu_on(struct psci_node *e)
{
struct cpu_info *ci;
struct cpu_action action = {
.run = &psci_cpu_on_callback,
.arg = e,
};
if (arch_run_on_cpu_async(e->cpu_state.ci->id, &action))
ci = e->cpu_state.ci;
if (ci == NULL || arch_run_on_cpu_async(ci->id, &action)) {
psci_set_hierarchy_state(e, e->cpu_state.ancestor,
PSCI_STATE_OFF);
return PSCI_RET_INTERNAL_FAILURE;
}
return PSCI_RET_SUCCESS;
}
void psci_turn_on_self(void *entry, void *arg)
void psci_turn_on_self(const struct cpu_action *action)
{
struct psci_node *e = node_self();
@ -210,7 +214,7 @@ void psci_turn_on_self(void *entry, void *arg)
}
psci_lock();
psci_cpu_on_prepare(e, entry, arg);
psci_cpu_on_prepare(e, action);
psci_unlock();
psci_schedule_cpu_on(e);
@ -223,6 +227,7 @@ static void psci_cpu_on(struct psci_func *pf)
uint64_t context_id;
int cpu_state;
struct psci_node *e;
struct cpu_action action;
target_mpidr = psci64_arg(pf, PSCI_PARAM_0);
entry = psci64_arg(pf, PSCI_PARAM_1);
@ -248,7 +253,9 @@ static void psci_cpu_on(struct psci_func *pf)
return;
}
psci_cpu_on_prepare(e, (void *)entry, (void *)context_id);
action.run = (void *)entry;
action.arg = (void *)context_id;
psci_cpu_on_prepare(e, &action);
psci_unlock();
psci32_return(pf, psci_schedule_cpu_on(e));

2
src/arch/arm64/armv8/secmon/secmon_init.c
View File

@ -44,7 +44,7 @@ static void start_up_cpu(void *arg)
if (action->run == NULL)
psci_turn_off_self();
psci_turn_on_self(action->run, action->arg);
psci_turn_on_self(action);
}
static void cpu_init(int bsp)

5
src/arch/arm64/include/arch/psci.h
View File

@ -63,8 +63,7 @@ struct psci_node;
struct psci_cpu_state {
struct cpu_info *ci;
void *entry;
void *arg;
struct cpu_action startup;
/* Ancestor of target to update state in CPU_ON case. */
struct psci_node *ancestor;
};
@ -191,7 +190,7 @@ static inline void psci64_return(struct psci_func *pf, int64_t val)
void psci_init(void);
/* Turn on the current CPU within the PSCI subsystem. */
void psci_turn_on_self(void *entry, void *arg);
void psci_turn_on_self(const struct cpu_action *action);
int psci_turn_off_self(void);
#endif /* __ARCH_PSCI_H__ */