diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2018-11-25 00:13:48 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-01-16 15:22:04 +0300 |
| commit | 1c6279b49d3ffff38357e93d112512fecf3711a7 (patch) | |
| tree | adc7f83ace1cb0a809e4f3453b04f0238546f859 /arch/arm/mach-tegra | |
| parent | d8f584099271ce51b59a4c5cec0c0f72e638145e (diff) | |
| download | linux-1c6279b49d3ffff38357e93d112512fecf3711a7.tar.xz | |
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 <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra')
| -rw-r--r-- | arch/arm/mach-tegra/iomap.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/sleep-tegra30.S | 21 |
2 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/iomap.h b/arch/arm/mach-tegra/iomap.h index 9e5b2f869fc8..9bc291e76887 100644 --- a/arch/arm/mach-tegra/iomap.h +++ b/arch/arm/mach-tegra/iomap.h @@ -79,15 +79,24 @@ #define TEGRA_PMC_BASE 0x7000E400 #define TEGRA_PMC_SIZE SZ_256 +#define TEGRA_MC_BASE 0x7000F000 +#define TEGRA_MC_SIZE SZ_1K + #define TEGRA_EMC_BASE 0x7000F400 #define TEGRA_EMC_SIZE SZ_1K +#define TEGRA114_MC_BASE 0x70019000 +#define TEGRA114_MC_SIZE SZ_4K + #define TEGRA_EMC0_BASE 0x7001A000 #define TEGRA_EMC0_SIZE SZ_2K #define TEGRA_EMC1_BASE 0x7001A800 #define TEGRA_EMC1_SIZE SZ_2K +#define TEGRA124_MC_BASE 0x70019000 +#define TEGRA124_MC_SIZE SZ_4K + #define TEGRA124_EMC_BASE 0x7001B000 #define TEGRA124_EMC_SIZE SZ_2K diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S index 7727e005c30e..d0b4c486ddbf 100644 --- a/arch/arm/mach-tegra/sleep-tegra30.S +++ b/arch/arm/mach-tegra/sleep-tegra30.S @@ -44,6 +44,8 @@ #define EMC_XM2VTTGENPADCTRL 0x310 #define EMC_XM2VTTGENPADCTRL2 0x314 +#define MC_EMEM_ARB_CFG 0x90 + #define PMC_CTRL 0x0 #define PMC_CTRL_SIDE_EFFECT_LP0 (1 << 14) /* enter LP0 when CPU pwr gated */ @@ -418,6 +420,22 @@ _pll_m_c_x_done: movweq r0, #:lower16:TEGRA124_EMC_BASE movteq r0, #:upper16:TEGRA124_EMC_BASE + cmp r10, #TEGRA30 + moveq r2, #0x20 + movweq r4, #:lower16:TEGRA_MC_BASE + movteq r4, #:upper16:TEGRA_MC_BASE + cmp r10, #TEGRA114 + moveq r2, #0x34 + movweq r4, #:lower16:TEGRA114_MC_BASE + movteq r4, #:upper16:TEGRA114_MC_BASE + cmp r10, #TEGRA124 + moveq r2, #0x20 + movweq r4, #:lower16:TEGRA124_MC_BASE + movteq r4, #:upper16:TEGRA124_MC_BASE + + ldr r1, [r5, r2] @ restore MC_EMEM_ARB_CFG + str r1, [r4, #MC_EMEM_ARB_CFG] + exit_self_refresh: ldr r1, [r5, #0xC] @ restore EMC_XM2VTTGENPADCTRL str r1, [r0, #EMC_XM2VTTGENPADCTRL] @@ -546,6 +564,7 @@ tegra30_sdram_pad_address: .word TEGRA_PMC_BASE + PMC_IO_DPD_STATUS @0x14 .word TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT @0x18 .word TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST @0x1c + .word TEGRA_MC_BASE + MC_EMEM_ARB_CFG @0x20 tegra30_sdram_pad_address_end: tegra114_sdram_pad_address: @@ -562,6 +581,7 @@ tegra114_sdram_pad_address: .word TEGRA_EMC1_BASE + EMC_AUTO_CAL_INTERVAL @0x28 .word TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL @0x2c .word TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL2 @0x30 + .word TEGRA114_MC_BASE + MC_EMEM_ARB_CFG @0x34 tegra114_sdram_pad_adress_end: tegra124_sdram_pad_address: @@ -573,6 +593,7 @@ tegra124_sdram_pad_address: .word TEGRA_PMC_BASE + PMC_IO_DPD_STATUS @0x14 .word TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT @0x18 .word TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST @0x1c + .word TEGRA124_MC_BASE + MC_EMEM_ARB_CFG @0x20 tegra124_sdram_pad_address_end: tegra30_sdram_pad_size: |