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authorDmitry Osipenko <[email protected]>2018-11-24 21:13:48 +0000
committerThierry Reding <[email protected]>2019-01-16 12:22:04 +0000
commit1c6279b49d3ffff38357e93d112512fecf3711a7 (patch)
treeadc7f83ace1cb0a809e4f3453b04f0238546f859 /drivers/fpga/altera-fpga2sdram.c
parentARM: tegra: Fix DRAM refresh-interval clobbering on resume from LP1 on Tegra30 (diff)
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ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+
The external memory arbitration configuration is getting reset after memory entering into self-refresh mode, it shall be restored on the exit. Note that MC_EMEM_ARB_CFG register is shadowed and latching happens on the EMC timing update. This fixes 2x GPU performance degradation after resuming from LP1 on Tegra30. Signed-off-by: Dmitry Osipenko <[email protected]> Acked-by: Jon Hunter <[email protected]> Tested-by: Jon Hunter <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
Diffstat (limited to 'drivers/fpga/altera-fpga2sdram.c')
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