Stephen Warren d40d69ee35 ARM: tegra: reduce DRAM size mapped into MMU on ARM64 ... ARM CPUs can architecturally (speculatively) prefetch completely arbitrary normal memory locations, as defined by the current translation tables. The current MMU configuration for 64-bit Tegras maps an extremely large range of addresses as DRAM, well beyond the actual physical maximum DRAM window, even though U-Boot only needs access to the first 2GB of DRAM; the Tegra port of U-Boot deliberately limits itself to 2GB of RAM since some HW modules on at least some 64-bit Tegra SoCs can only access a 32-bit physical address space. This change reduces the amount of RAM mapped via the MMU to disallow the CPU from ever speculatively accessing RAM that U-Boot will definitely not access. This avoids the possibility of the HW raising SError due to accesses to always-invalid physical addresses. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>		2016-10-10 11:00:03 -07:00
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arc	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
arm	ARM: tegra: reduce DRAM size mapped into MMU on ARM64	2016-10-10 11:00:03 -07:00
avr32	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
blackfin	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
m68k	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
microblaze	spl: Add a parameter to jump_to_image_linux()	2016-10-06 14:48:19 -04:00
mips	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
nds32	nds32: Support relocation.	2016-09-29 15:38:10 +08:00
nios2	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
openrisc	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
powerpc	Various, accumulated typos collected from around the tree.	2016-10-06 20:57:40 -04:00
sandbox	spl: Pass spl_image as a parameter to load_image() methods	2016-10-06 15:08:52 -04:00
sh	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
sparc	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
x86	input: specify the default of I8042_KEYB in more correct manner	2016-10-01 20:04:35 -04:00
xtensa	Remove arch/${ARCH}/include/asm/errno.h	2016-09-23 17:56:18 -04:00
.gitignore	.gitignore: drop include/asm/proc from ignore pattern	2014-06-19 11:18:54 -04:00
Kconfig	sandbox, x86: select DM_KEYBOARD instead of default y entry	2016-10-01 20:04:33 -04:00