diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 434e3dd75c91..d63633f566b3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -737,6 +737,19 @@ if !MMU source "arch/arm/Kconfig-nommu" endif +config TEGRA_ERRATA_657451 + bool "Store bit 20 of CP15 TLS register c13,3 in bit 0" + depends on ARCH_TEGRA_2x_SOC && HAS_TLS_REG + default y + help + This option enables a workaround for the 657451 Tegra 2 errata + which causes unreliable reads from bit 20 of the thread storage + register c13, 3 (used by the __set_tls system call). It stores the + value intended for bit 20 into bit 0 instead; in most user-space + environments, the value saved by __set_tls is an aligned address, + so repurposing bit 0 will not cause ill effects. + + config ARM_ERRATA_364296 bool "Enable partial low interrupt latency mode for ARM1136" depends on CPU_V6 && !SMP |