spl: Add default values for ARCH_MX7

[u-boot] / common / iotrace.c

diff --git a/common/iotrace.c b/common/iotrace.c
index ced426ea5c65f2f3c8b2a3e0ed030199a4cc0490..2f03a6082e893f0c2493c16c749a17e21442c692 100644 (file)
--- a/common/iotrace.c
+++ b/common/iotrace.c
@@ -1,12 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2014 Google, Inc.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #define IOTRACE_IMPL
 
 #include <common.h>
+#include <mapmem.h>
 #include <asm/io.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -27,11 +27,13 @@ enum iotrace_flags {
  * struct iotrace_record - Holds a single I/O trace record
  *
  * @flags: I/O access type
+ * @timestamp: Timestamp of access
  * @addr: Address of access
  * @value: Value written or read
  */
 struct iotrace_record {
        enum iotrace_flags flags;
+       u64 timestamp;
        phys_addr_t addr;
        iovalue_t value;
 };
@@ -42,6 +44,8 @@ struct iotrace_record {
  * @start:     Start address of iotrace buffer
  * @size:      Size of iotrace buffer in bytes
  * @offset:    Current write offset into iotrace buffer
+ * @region_start: Address of IO region to trace
+ * @region_size: Size of region to trace. if 0 will trace all address space
  * @crc32:     Current value of CRC chceksum of trace records
  * @enabled:   true if enabled, false if disabled
  */
@@ -49,6 +53,8 @@ static struct iotrace {
        ulong start;
        ulong size;
        ulong offset;
+       ulong region_start;
+       ulong region_size;
        u32 crc32;
        bool enabled;
 } iotrace;
@@ -66,13 +72,18 @@ static void add_record(int flags, const void *ptr, ulong value)
        if (!(gd->flags & GD_FLG_RELOC) || !iotrace.enabled)
                return;
 
+       if (iotrace.region_size)
+               if ((ulong)ptr < iotrace.region_start ||
+                   (ulong)ptr > iotrace.region_start + iotrace.region_size)
+                       return;
+
        /* Store it if there is room */
        if (iotrace.offset + sizeof(*rec) < iotrace.size) {
                rec = (struct iotrace_record *)map_sysmem(
                                        iotrace.start + iotrace.offset,
                                        sizeof(value));
        }
-
+       rec->timestamp = timer_get_us();
        rec->flags = flags;
        rec->addr = map_to_sysmem(ptr);
        rec->value = value;
@@ -142,6 +153,24 @@ u32 iotrace_get_checksum(void)
        return iotrace.crc32;
 }
 
+void iotrace_set_region(ulong start, ulong size)
+{
+       iotrace.region_start = start;
+       iotrace.region_size = size;
+}
+
+void iotrace_reset_region(void)
+{
+       iotrace.region_start = 0;
+       iotrace.region_size = 0;
+}
+
+void iotrace_get_region(ulong *start, ulong *size)
+{
+       *start = iotrace.region_start;
+       *size = iotrace.region_size;
+}
+
 void iotrace_set_enabled(int enable)
 {
        iotrace.enabled = enable;