feat(spmc): enable handling FF-A RX/TX Mapping ABIs
Enable handling of FFA_RXTX_MAP and FFA_RXTX_UNMAP ABIs
and ensure these buffers are mapped as required to allow
access by the SPMC.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ifc425f1ee16c90d1d95b6ae4ac9992d6f785227b
diff --git a/services/std_svc/spm/el3_spmc/spmc.h b/services/std_svc/spm/el3_spmc/spmc.h
index faa604f..31ebe36 100644
--- a/services/std_svc/spm/el3_spmc/spmc.h
+++ b/services/std_svc/spm/el3_spmc/spmc.h
@@ -37,6 +37,12 @@
#define FFA_WB_TYPE_S2RAM 0
#define FFA_WB_TYPE_NOTS2RAM 1
+#define FFA_PAGE_SIZE (4096)
+#define FFA_RXTX_PAGE_COUNT_MASK 0x1F
+
+/* Ensure that the page size used by TF-A is 4k aligned. */
+CASSERT((PAGE_SIZE % FFA_PAGE_SIZE) == 0, assert_aligned_page_size);
+
/*
* Runtime states of an execution context as per the FF-A v1.1 specification.
*/