Merge pull request #295 from danh-arm/dh/plat-port-reorg

ARM platform port reorganization

1 files changed, 64 insertions, 0 deletions

diff --git a/plat/arm/common/arm_topology.c b/plat/arm/common/arm_topology.c
new file mode 100644
index 00000000..94faa9f2
--- /dev/null
+++ b/plat/arm/common/arm_topology.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arch.h>
+#include <psci.h>
+#include <platform_def.h>
+
+/*
+ * Weak definitions use fixed topology. Strong definitions could make topology
+ * configurable
+ */
+#pragma weak plat_get_aff_count
+#pragma weak plat_get_aff_state
+#pragma weak plat_arm_topology_setup
+
+
+unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr)
+{
+	/* Report 1 (absent) instance at levels higher that the cluster level */
+	if (aff_lvl > MPIDR_AFFLVL1)
+		return 1;
+
+	if (aff_lvl == MPIDR_AFFLVL1)
+		return ARM_CLUSTER_COUNT;
+
+	return mpidr & 0x100 ? PLAT_ARM_CLUSTER1_CORE_COUNT :
+				PLAT_ARM_CLUSTER0_CORE_COUNT;
+}
+
+unsigned int plat_get_aff_state(unsigned int aff_lvl, unsigned long mpidr)
+{
+	return aff_lvl <= MPIDR_AFFLVL1 ? PSCI_AFF_PRESENT : PSCI_AFF_ABSENT;
+}
+
+void plat_arm_topology_setup(void)
+{
+}