feat(qemu-sbsa): handle memory information
As a part of removing DeviceTree from EDK2, we move functions to TF-A:
- counting the number of memory nodes
- checking NUMA node id
- checking the memory address
Signed-off-by: Xiong Yining <xiongyining1480@phytium.com.cn>
Signed-off-by: Chen Baozi <chenbaozi@phytium.com.cn>
Change-Id: Ib7bce3a65c817a5b3bef6c9e0a459c7ce76c7e35
diff --git a/plat/qemu/qemu_sbsa/include/platform_def.h b/plat/qemu/qemu_sbsa/include/platform_def.h
index 14030e3..e8f0344 100644
--- a/plat/qemu/qemu_sbsa/include/platform_def.h
+++ b/plat/qemu/qemu_sbsa/include/platform_def.h
@@ -62,6 +62,11 @@
#define CACHE_WRITEBACK_GRANULE (1 << CACHE_WRITEBACK_SHIFT)
/*
+ * Define the max number of memory nodes.
+ */
+#define PLAT_MAX_MEM_NODES 128
+
+/*
* Partition memory into secure ROM, non-secure DRAM, secure "SRAM",
* and secure DRAM.
*/
diff --git a/plat/qemu/qemu_sbsa/sbsa_sip_svc.c b/plat/qemu/qemu_sbsa/sbsa_sip_svc.c
index ed49e91..535f0eb 100644
--- a/plat/qemu/qemu_sbsa/sbsa_sip_svc.c
+++ b/plat/qemu/qemu_sbsa/sbsa_sip_svc.c
@@ -30,6 +30,8 @@
#define SIP_SVC_GET_GIC_ITS SIP_FUNCTION_ID(101)
#define SIP_SVC_GET_CPU_COUNT SIP_FUNCTION_ID(200)
#define SIP_SVC_GET_CPU_NODE SIP_FUNCTION_ID(201)
+#define SIP_SVC_GET_MEMORY_NODE_COUNT SIP_FUNCTION_ID(300)
+#define SIP_SVC_GET_MEMORY_NODE SIP_FUNCTION_ID(301)
static uint64_t gic_its_addr;
@@ -38,9 +40,17 @@
uint32_t mpidr;
} cpu_data;
+typedef struct{
+ uint32_t nodeid;
+ uint64_t addr_base;
+ uint64_t addr_size;
+} memory_data;
+
static struct {
uint32_t num_cpus;
+ uint32_t num_memnodes;
cpu_data cpu[PLATFORM_CORE_COUNT];
+ memory_data memory[PLAT_MAX_MEM_NODES];
} dynamic_platform_info;
void sbsa_set_gic_bases(const uintptr_t gicd_base, const uintptr_t gicr_base);
@@ -127,6 +137,79 @@
INFO("Found %d cpus\n", dynamic_platform_info.num_cpus);
}
+void read_meminfo_from_dt(void *dtb)
+{
+ const fdt32_t *prop;
+ const char *type;
+ int prev, node;
+ int len;
+ uint32_t nodeid = 0;
+ uint32_t memnode = 0;
+ uint32_t higher_value, lower_value;
+ uint64_t cur_base, cur_size;
+
+ /*
+ * QEMU gives us this DeviceTree node:
+ *
+ * memory@100c0000000 {
+ * numa-node-id = <0x01>;
+ * reg = <0x100 0xc0000000 0x00 0x40000000>;
+ * device_type = "memory";
+ * };
+ *
+ * memory@10000000000 {
+ * numa-node-id = <0x00>;
+ * reg = <0x100 0x00 0x00 0xc0000000>;
+ * device_type = "memory";
+ * }
+ */
+
+ for (prev = 0;; prev = node) {
+ node = fdt_next_node(dtb, prev, NULL);
+ if (node < 0) {
+ break;
+ }
+
+ type = fdt_getprop(dtb, node, "device_type", &len);
+ if (type && strncmp(type, "memory", len) == 0) {
+ if (fdt_getprop(dtb, node, "numa-node-id", NULL)) {
+ fdt_read_uint32(dtb, node, "numa-node-id", &nodeid);
+ }
+
+ dynamic_platform_info.memory[memnode].nodeid = nodeid;
+
+ /*
+ * Get the 'reg' property of this node and
+ * assume two 8 bytes for base and size.
+ */
+ prop = fdt_getprop(dtb, node, "reg", &len);
+ if (prop != 0 && len == (2 * sizeof(int64_t))) {
+ higher_value = fdt32_to_cpu(*prop);
+ lower_value = fdt32_to_cpu(*(prop + 1));
+ cur_base = (uint64_t)(lower_value | ((uint64_t)higher_value) << 32);
+
+ higher_value = fdt32_to_cpu(*(prop + 2));
+ lower_value = fdt32_to_cpu(*(prop + 3));
+ cur_size = (uint64_t)(lower_value | ((uint64_t)higher_value) << 32);
+
+ dynamic_platform_info.memory[memnode].addr_base = cur_base;
+ dynamic_platform_info.memory[memnode].addr_size = cur_size;
+
+ INFO("RAM %d: node-id: %d, address: 0x%lx - 0x%lx\n",
+ memnode,
+ dynamic_platform_info.memory[memnode].nodeid,
+ dynamic_platform_info.memory[memnode].addr_base,
+ dynamic_platform_info.memory[memnode].addr_base +
+ dynamic_platform_info.memory[memnode].addr_size - 1);
+ }
+
+ memnode++;
+ }
+ }
+
+ dynamic_platform_info.num_memnodes = memnode;
+}
+
void read_platform_config_from_dt(void *dtb)
{
int node;
@@ -222,6 +305,7 @@
read_platform_config_from_dt(dtb);
read_cpuinfo_from_dt(dtb);
+ read_meminfo_from_dt(dtb);
}
/*
@@ -270,6 +354,20 @@
SMC_RET1(handle, SMC_ARCH_CALL_INVAL_PARAM);
}
+ case SIP_SVC_GET_MEMORY_NODE_COUNT:
+ SMC_RET2(handle, NULL, dynamic_platform_info.num_memnodes);
+
+ case SIP_SVC_GET_MEMORY_NODE:
+ index = x1;
+ if (index < PLAT_MAX_MEM_NODES) {
+ SMC_RET4(handle, NULL,
+ dynamic_platform_info.memory[index].nodeid,
+ dynamic_platform_info.memory[index].addr_base,
+ dynamic_platform_info.memory[index].addr_size);
+ } else {
+ SMC_RET1(handle, SMC_ARCH_CALL_INVAL_PARAM);
+ }
+
default:
ERROR("%s: unhandled SMC (0x%x) (function id: %d)\n", __func__, smc_fid,
smc_fid - SIP_FUNCTION);