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PSCI: Introduce PSCI Library argument structure

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This patch introduces a `psci_lib_args_t` structure which must be
passed into `psci_setup()` which is then used to initialize the PSCI
library. The `psci_lib_args_t` is a versioned structure so as to enable
compatibility checks during library initialization. Both BL31 and SP_MIN
are modified to use the new structure.

SP_MIN is also modified to add version string and build message as part
of its cold boot log just like the other BLs in Trusted Firmware.

NOTE: Please be aware that this patch modifies the prototype of
`psci_setup()`, which breaks compatibility with EL3 Runtime Firmware
(excluding BL31 and SP_MIN) integrated with the PSCI Library.

Change-Id: Ic3761db0b790760a7ad664d8a437c72ea5edbcd6
This commit is contained in:
Soby Mathew 2016-09-13 14:19:08 +01:00
parent 44abeaa632
commit f426fc0519
5 changed files with 59 additions and 12 deletions
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7
lib/psci/psci_setup.c
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@ -206,10 +206,12 @@ static void populate_power_domain_tree(const unsigned char *topology)
* | CPU 0 | CPU 1 | CPU 2 | CPU 3 |
* ------------------------------------------------
******************************************************************************/
int psci_setup(uintptr_t mailbox_ep)
int psci_setup(const psci_lib_args_t *lib_args)
{
const unsigned char *topology_tree;
assert(VERIFY_PSCI_LIB_ARGS_V1(lib_args));
/* Do the Architectural initialization */
psci_arch_setup();
@ -234,8 +236,7 @@ int psci_setup(uintptr_t mailbox_ep)
*/
psci_set_pwr_domains_to_run(PLAT_MAX_PWR_LVL);
assert(mailbox_ep);
plat_setup_psci_ops(mailbox_ep, &psci_plat_pm_ops);
plat_setup_psci_ops((uintptr_t)lib_args->mailbox_ep, &psci_plat_pm_ops);
assert(psci_plat_pm_ops);
/*