diff options
| author | Hyung Taek Ryoo <hryoo@nvidia.com> | 2012-07-31 15:43:34 -0700 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-08-06 12:12:31 -0700 |
| commit | 9bf22a62cd071336282e3fa5d999f898e77119d1 (patch) | |
| tree | 123fcf5de57343f49ff6d07639235d82e04e0a87 /arch/arm/mach-tegra/headsmp.S | |
| parent | 76fd6572b00e780a2a00cc2ee21b9f30d968cb5e (diff) | |
arm: tegra: optimize L2 enable/disable paths for secureos
For the CONFIG_TRUSTED_FOUNDATION code paths, differentiate L2
enable vs. reenable, which are different SMCs (won't trigger an
invalidate in the case of a reenable).
On an L2 disable SMC, optionally pass a 0 for the L2 ways arg,
which skips the full clean/invalidate (and simply just disabled
the L2).
In order to safely skip flushing the L2 on the disable, we have
to be careful what we dirty from the type we flush the L1 and
disable the L2.
Bug 939415
Signed-off-by: Chris Johnson<cwj@nvidia.com>
Change-Id: I756d2ceda83d5d8d6bc5670218e9d874d5e5f62a
Reviewed-on: http://git-master/r/119786
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/headsmp.S')
| -rw-r--r-- | arch/arm/mach-tegra/headsmp.S | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-tegra/headsmp.S b/arch/arm/mach-tegra/headsmp.S index 4e28a558cc38..63852b99b3d3 100644 --- a/arch/arm/mach-tegra/headsmp.S +++ b/arch/arm/mach-tegra/headsmp.S @@ -3,7 +3,7 @@ * * CPU initialization routines for Tegra SoCs * - * Copyright (c) 2009-2011, NVIDIA Corporation. + * Copyright (c) 2009-2012, NVIDIA Corporation. All rights reserved. * Copyright (c) 2011 Google, Inc. * Author: Colin Cross <ccross@android.com> * Gary King <gking@nvidia.com> @@ -90,8 +90,9 @@ ENTRY(tegra_resume) str r1, [r0] #ifdef CONFIG_TRUSTED_FOUNDATIONS - /* wake up (should have specified args?) */ - bl tegra_generic_smc + /* wake up */ + mov r0, #0x00000003 + bl tegra_generic_smc_local #endif b tegra_cpu_resume_phys |