diff options
| author | Soby Mathew <soby.mathew@arm.com> | 2015-01-08 18:02:44 +0000 |
|---|---|---|
| committer | Dan Handley <dan.handley@arm.com> | 2015-01-22 10:57:44 +0000 |
| commit | ab8707e6875a9fe447ff04fad9053d7d719f89e6 (patch) | |
| tree | 376a47144a8349f7ce3cdf21a1a12694e7f6bba6 /services/std_svc/psci/psci_setup.c | |
| parent | 8c5fe0b5b9f1666b4ddd8f5849de80249cdebe40 (diff) | |
Remove coherent memory from the BL memory maps
This patch extends the build option `USE_COHERENT_MEMORY` to
conditionally remove coherent memory from the memory maps of
all boot loader stages. The patch also adds necessary
documentation for coherent memory removal in firmware-design,
porting and user guides.
Fixes ARM-Software/tf-issues#106
Change-Id: I260e8768c6a5c2efc402f5804a80657d8ce38773
Diffstat (limited to 'services/std_svc/psci/psci_setup.c')
| -rw-r--r-- | services/std_svc/psci/psci_setup.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/services/std_svc/psci/psci_setup.c b/services/std_svc/psci/psci_setup.c index a750256e..be504e81 100644 --- a/services/std_svc/psci/psci_setup.c +++ b/services/std_svc/psci/psci_setup.c @@ -331,13 +331,20 @@ int32_t psci_setup(void) afflvl); } +#if !USE_COHERENT_MEM + /* + * The psci_aff_map only needs flushing when it's not allocated in + * coherent memory. + */ + flush_dcache_range((uint64_t) &psci_aff_map, sizeof(psci_aff_map)); +#endif + /* * Set the bounds for the affinity counts of each level in the map. Also * flush out the entire array so that it's visible to subsequent power - * management operations. The 'psci_aff_map' array is allocated in - * coherent memory so does not need flushing. The 'psci_aff_limits' - * array is allocated in normal memory. It will be accessed when the mmu - * is off e.g. after reset. Hence it needs to be flushed. + * management operations. The 'psci_aff_limits' array is allocated in + * normal memory. It will be accessed when the mmu is off e.g. after + * reset. Hence it needs to be flushed. */ for (afflvl = MPIDR_AFFLVL0; afflvl < max_afflvl; afflvl++) { psci_aff_limits[afflvl].min = |