diff options
| author | Andrew Thoelke <andrew.thoelke@arm.com> | 2014-06-20 00:36:14 +0100 |
|---|---|---|
| committer | Andrew Thoelke <andrew.thoelke@arm.com> | 2014-06-23 14:56:12 +0100 |
| commit | 6c0b45d1ceb13cb409f8d62d712d6f0c44feab6c (patch) | |
| tree | 19791165a5a11459b1c176885060f3764d80dc7c /services/std_svc/psci/psci_private.h | |
| parent | 13ac44a5c7336657ba7518ea31c66f7e7dd7eea8 (diff) | |
Correctly dimension the PSCI aff_map_node array
The array of affinity nodes is currently allocated for 32 entries
with the PSCI_NUM_AFFS value defined in psci.h. This is not enough
for large systems, and will substantially over allocate the array
for small systems.
This patch introduces an optional platform definition
PLATFORM_NUM_AFFS to platform_def.h. If defined this value is
used for PSCI_NUM_AFFS, otherwise a value of two times the number
of CPU cores is used.
The FVP port defines PLATFORM_NUM_AFFS to be 10 which saves
nearly 1.5KB of memory.
Fixes ARM-software/tf-issues#192
Change-Id: I68e30ac950de88cfbd02982ba882a18fb69c1445
Diffstat (limited to 'services/std_svc/psci/psci_private.h')
| -rw-r--r-- | services/std_svc/psci/psci_private.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/services/std_svc/psci/psci_private.h b/services/std_svc/psci/psci_private.h index 08a4a34a..f5340874 100644 --- a/services/std_svc/psci/psci_private.h +++ b/services/std_svc/psci/psci_private.h @@ -33,8 +33,16 @@ #include <arch.h> #include <bakery_lock.h> +#include <platform_def.h> /* for PLATFORM_NUM_AFFS */ #include <psci.h> +/* Number of affinity instances whose state this psci imp. can track */ +#ifdef PLATFORM_NUM_AFFS +#define PSCI_NUM_AFFS PLATFORM_NUM_AFFS +#else +#define PSCI_NUM_AFFS (2 * PLATFORM_CORE_COUNT) +#endif + /******************************************************************************* * 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. |