Merge branch '2019-05-03-master-imports'

[oweals/u-boot.git] / lib / Kconfig

diff --git a/lib/Kconfig b/lib/Kconfig
index a3352a4fa15c42036a1fc571c8030941e01b4932..38012506d294ccf1884aa9f633ae5915e0e261a0 100644 (file)
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -174,6 +174,54 @@ config TRACE
          memory for exporting for analysis (e.g. using bootchart).
          See doc/README.trace for full details.
 
+config TRACE_BUFFER_SIZE
+       hex "Size of trace buffer in U-Boot"
+       depends on TRACE
+       default 0x01000000
+       help
+         Sets the size of the trace buffer in U-Boot. This is allocated from
+         memory during relocation. If this buffer is too small, the trace
+         history will be truncated, with later records omitted.
+
+         If early trace is enabled (i.e. before relocation), this buffer must
+         be large enough to include all the data from the early trace buffer as
+         well, since this is copied over to the main buffer during relocation.
+
+         A trace record is emitted for each function call and each record is
+         12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
+         the size is too small then 'trace stats' will show a message saying
+         how many records were dropped due to buffer overflow.
+
+config TRACE_EARLY
+       bool "Enable tracing before relocation"
+       depends on TRACE
+       help
+         Sometimes it is helpful to trace execution of U-Boot before
+         relocation. This is possible by using a arch-specific, fixed buffer
+         position in memory. Enable this option to start tracing as early as
+         possible after U-Boot starts.
+
+config TRACE_EARLY_SIZE
+       hex "Size of early trace buffer in U-Boot"
+       depends on TRACE_EARLY
+       default 0x00100000
+       help
+         Sets the size of the early trace buffer in bytes. This is used to hold
+         tracing information before relocation.
+
+config TRACE_EARLY_ADDR
+       hex "Address of early trace buffer in U-Boot"
+       depends on TRACE_EARLY
+       default 0x00100000
+       help
+         Sets the address of the early trace buffer in U-Boot. This memory
+         must be accessible before relocation.
+
+         A trace record is emitted for each function call and each record is
+         12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
+         the size is too small then the message which says the amount of early
+         data being coped will the the same as the
+
 source lib/dhry/Kconfig
 
 menu "Security support"
@@ -311,7 +359,7 @@ config LZO
          This enables support for LZO compression algorithm.r
 
 config GZIP
-       bool "Enable gzip decompression support for SPL build"
+       bool "Enable gzip decompression support"
        select ZLIB
        default y
        help