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authorCástor Muñoz <cmvidal@gmail.com>2017-01-13 20:51:07 +0100
committerFranklin Wei <git@fwei.tk>2018-07-30 18:50:27 -0400
commit744274220833e017f3cc3f1b61abd0fc7c3885ec (patch)
tree7b6fcdd7bc9e53bee6f62ed683ddf1db4c0c13ad /lib/rbcodec/codecs/libmusepack
parent8f38f85fbde2ae78ba50cf9b9f54fbf9d25b4a45 (diff)
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iPod Classic: disable IRAM1
On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is slower than DRAM. Codecs that actually are using regions of IRAM1 runs faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains enabled: 48KB for core and 80KB for codecs/plugins. The next test_codec results shows how decode time is decreased: file boosted unboosted *.ra ~1.5% ~0.5% *.mpc ~21% ~4.5% *.ogg ~0.5% ~0% nero_he*.m4a ~8% ~1% nero*.m4a ~25% ~7% wmapro*.wma ~4.5% ~0% wma*.wma ~25% ~7% In addition there is a small power save when IRAM1 HW is disabled. Change-Id: I102adee11458e82037f23076d5d5956e23235de8
Diffstat (limited to 'lib/rbcodec/codecs/libmusepack')
-rw-r--r--lib/rbcodec/codecs/libmusepack/mpcdec.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/rbcodec/codecs/libmusepack/mpcdec.h b/lib/rbcodec/codecs/libmusepack/mpcdec.h
index 02003cb01b..24c06bc4a0 100644
--- a/lib/rbcodec/codecs/libmusepack/mpcdec.h
+++ b/lib/rbcodec/codecs/libmusepack/mpcdec.h
@@ -58,7 +58,7 @@ extern "C" {
/* Keep the data arrays of bitsreadr.c in IRAM. */
#define ICONST_ATTR_MPC_BITSREADER ICONST_ATTR
-#elif (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024)
+#elif (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || (CONFIG_CPU == S5L8702)
/* Enough IRAM to move additional data and code to it. */
#define IBSS_ATTR_MPC_LARGE_IRAM IBSS_ATTR
#define ICODE_ATTR_MPC_LARGE_IRAM ICODE_ATTR
@@ -70,7 +70,7 @@ extern "C" {
* sv7/sv8 bitstream demuxing into IRAM. This config is faster. */
#define ICONST_ATTR_MPC_BITSREADER
-#elif defined(CPU_S5L870X)
+#elif (CONFIG_CPU == S5L8700) || (CONFIG_CPU == S5L8701)
/* Enough IRAM to move additional data and code to it. */
#define IBSS_ATTR_MPC_LARGE_IRAM IBSS_ATTR
#define ICODE_ATTR_MPC_LARGE_IRAM ICODE_ATTR