diff options
| author | Achin Gupta <achin.gupta@arm.com> | 2014-06-26 11:12:37 +0100 |
|---|---|---|
| committer | Achin Gupta <achin.gupta@arm.com> | 2014-07-28 10:04:04 +0100 |
| commit | 539a7b383d52493a94df4f5da8f74aa102429fa0 (patch) | |
| tree | 2bc9dd66d2488587cc2bc05f887f2467b4a79dec /services/std_svc | |
| parent | b51da821821cfda0d44f09a6f92fdc5933f9b23b (diff) | |
Remove the concept of coherent stacks
This patch removes the allocation of memory for coherent stacks, associated
accessor function and some dead code which called the accessor function. It also
updates the porting guide to remove the concept and the motivation behind using
stacks allocated in coherent memory.
Fixes ARM-software/tf-issues#198
Change-Id: I00ff9a04f693a03df3627ba39727e3497263fc38
Diffstat (limited to 'services/std_svc')
| -rw-r--r-- | services/std_svc/psci/psci_afflvl_off.c | 3 | ||||
| -rw-r--r-- | services/std_svc/psci/psci_afflvl_suspend.c | 3 | ||||
| -rw-r--r-- | services/std_svc/psci/psci_common.c | 3 | ||||
| -rw-r--r-- | services/std_svc/psci/psci_entry.S | 5 |
4 files changed, 0 insertions, 14 deletions
diff --git a/services/std_svc/psci/psci_afflvl_off.c b/services/std_svc/psci/psci_afflvl_off.c index a1f729bc..83d19d3e 100644 --- a/services/std_svc/psci/psci_afflvl_off.c +++ b/services/std_svc/psci/psci_afflvl_off.c @@ -210,9 +210,6 @@ static int psci_call_off_handlers(mpidr_aff_map_nodes_t mpidr_nodes, * the lowest to the highest affinity level implemented by the platform because * to turn off affinity level X it is neccesary to turn off affinity level X - 1 * first. - * - * CAUTION: This function is called with coherent stacks so that coherency can - * be turned off and caches can be flushed safely. ******************************************************************************/ int psci_afflvl_off(int start_afflvl, int end_afflvl) diff --git a/services/std_svc/psci/psci_afflvl_suspend.c b/services/std_svc/psci/psci_afflvl_suspend.c index ab731fb6..1e60276c 100644 --- a/services/std_svc/psci/psci_afflvl_suspend.c +++ b/services/std_svc/psci/psci_afflvl_suspend.c @@ -355,9 +355,6 @@ static int psci_call_suspend_handlers(mpidr_aff_map_nodes_t mpidr_nodes, * the lowest to the highest affinity level implemented by the platform because * to turn off affinity level X it is neccesary to turn off affinity level X - 1 * first. - * - * CAUTION: This function is called with coherent stacks so that coherency can - * be turned off and caches can be flushed safely. ******************************************************************************/ int psci_afflvl_suspend(unsigned long entrypoint, unsigned long context_id, diff --git a/services/std_svc/psci/psci_common.c b/services/std_svc/psci/psci_common.c index 3c79a5e7..56f3daf2 100644 --- a/services/std_svc/psci/psci_common.c +++ b/services/std_svc/psci/psci_common.c @@ -390,9 +390,6 @@ static int psci_call_power_on_handlers(mpidr_aff_map_nodes_t mpidr_nodes, * the highest to the lowest affinity level implemented by the platform because * to turn on affinity level X it is neccesary to turn on affinity level X + 1 * first. - * - * CAUTION: This function is called with coherent stacks so that coherency and - * the mmu can be turned on safely. ******************************************************************************/ void psci_afflvl_power_on_finish(int start_afflvl, int end_afflvl, diff --git a/services/std_svc/psci/psci_entry.S b/services/std_svc/psci/psci_entry.S index e77d0e63..192b638c 100644 --- a/services/std_svc/psci/psci_entry.S +++ b/services/std_svc/psci/psci_entry.S @@ -44,11 +44,6 @@ * upon whether it was resumed from suspend or simply * turned on, call the common power on finisher with * the handlers (chosen depending upon original state). - * For ease, the finisher is called with coherent - * stacks. This allows the cluster/cpu finishers to - * enter coherency and enable the mmu without running - * into issues. We switch back to normal stacks once - * all this is done. * ----------------------------------------------------- */ func psci_aff_on_finish_entry |