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| author | Vineet Gupta <vgupta@synopsys.com> | 2014-05-27 19:27:37 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-06-19 18:09:31 +0530 |
| commit | 749aa0e11a7f551d1133b391cf8a160718d7ca50 (patch) | |
| tree | 074e43f5189033ab46bc2393e0cab479dc10b76e /arch | |
| parent | 8d0d56ba24d8d0b04bc9d9a7fbd1796d8966159f (diff) | |
| download | linux-749aa0e11a7f551d1133b391cf8a160718d7ca50.tar.gz linux-749aa0e11a7f551d1133b391cf8a160718d7ca50.tar.bz2 linux-749aa0e11a7f551d1133b391cf8a160718d7ca50.zip | |
ARC: [axs101] Tweak DDR port aperture mappings for performance
Route all MB originated traffic to DDR Port 1 and keep Port 0 for CPU
traffic only
Basic system parameters
--------------------------------------------------------------------------------------
Host OS Description Mhz tlb cache mem scal
pages line par load
bytes
----------------- ------------- --------------------------------------- ---- ----- ----- ------ ----
axs101-sd-2-new-f Linux 3.13.0+ axs101-sd-2-new-fw-old-img-rerun 739 8 32 1.1100 1
axs101-sd-3-arc-3 Linux 3.13.9+ axs101-sd-3-arc-3.13-tip-regression 735 8 32 1.1000 1
axs101-sd-9-diffe Linux 3.13.11 axs101-sd-9-different-tweak 740 8 32 1.0000 1
Processor, Processes - times in microseconds - smaller is better
------------------------------------------------------------------------------
Host OS Mhz null null open slct sig sig fork exec sh
call I/O stat clos TCP inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
axs101-sd Linux 3.13.0+ 739 0.50 0.88 5.38 14.6 34.1 0.92 5.18 2135 6555 12.K
axs101-sd Linux 3.13.9+ 735 0.50 0.90 5.89 19.2 81.4 0.94 4.08 2560 8559 15.K
axs101-sd Linux 3.13.11 740 0.50 0.88 4.45 17.8 34.4 0.94 3.25 2052 6493 12.K
^^^^ ^^^^
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arc/plat-axs10x/axs10x.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c index 2e7686d1382f..759a7a19889f 100644 --- a/arch/arc/plat-axs10x/axs10x.c +++ b/arch/arc/plat-axs10x/axs10x.c @@ -173,8 +173,8 @@ static const struct aperture axc001_memmap[16] = { {AXC001_SLV_NONE, 0x0}, {AXC001_SLV_DDR_PORT0, 0x0}, /* 0x8000_0000: DDR 0..256M */ {AXC001_SLV_DDR_PORT0, 0x1}, /* 0x9000_0000: DDR 256..512M */ - {AXC001_SLV_DDR_PORT1, 0x0}, - {AXC001_SLV_DDR_PORT1, 0x1}, + {AXC001_SLV_DDR_PORT0, 0x2}, + {AXC001_SLV_DDR_PORT0, 0x3}, {AXC001_SLV_NONE, 0x0}, {AXC001_SLV_AXI_TUNNEL, 0xD}, {AXC001_SLV_AXI_TUNNEL, 0xE}, /* MB: CREG, CGU... */ @@ -194,10 +194,10 @@ static const struct aperture axc001_axi_tunnel_memmap[16] = { {AXC001_SLV_NONE, 0x0}, {AXC001_SLV_NONE, 0x0}, {AXC001_SLV_NONE, 0x0}, - {AXC001_SLV_DDR_PORT0, 0x0}, - {AXC001_SLV_DDR_PORT0, 0x1}, {AXC001_SLV_DDR_PORT1, 0x0}, {AXC001_SLV_DDR_PORT1, 0x1}, + {AXC001_SLV_DDR_PORT1, 0x2}, + {AXC001_SLV_DDR_PORT1, 0x3}, {AXC001_SLV_NONE, 0x0}, {AXC001_SLV_AXI_TUNNEL, 0xD}, {AXC001_SLV_AXI_TUNNEL, 0xE}, |