Ping Tom, how does this look to you? On Mon, Oct 19, 2015 at 1:57 PM, Alexandre Courbot <acourbot@xxxxxxxxxx> wrote: > This series makes U-boot program the write-protected (WPR) region of T210 chips, > allowing the kernel to perform GPU secure firmware loading. > > Tegra 210's GPU requires its firmware to be loaded though a write-protected > region. An area of physical memory is carved-out, programmed into the > corresponding memory controller registers, and locked such as only the GPU can > write into it. This area needs to be set up by the bootloader since it cannot > be re-claimed for normal use after being locked. > > The first 3 patches of this series are cleanup patches. Patch 2 implements a > suggestion made by Stephen, patch 3 renames GPU-related functions to sound less > generic. > > The last patch adds support for the GPU WPR region. The top 256KB of memory are > removed from the available memory, and the corresponding MC registers are > programmed to point to it, which allows the kernel to initiate secure firmware > loading. > > Alexandre Courbot (4): > ARM: tegra: remove vpr_configured() function > ARM: tegra: simplify GPU setup > ARM: tegra: rename GPU functions > ARM: tegra210: gpu: configure WPR region > > arch/arm/include/asm/arch-tegra/gpu.h | 14 +++------ > arch/arm/include/asm/arch-tegra210/mc.h | 12 ++++++++ > arch/arm/mach-tegra/board.c | 4 +++ > arch/arm/mach-tegra/board2.c | 22 +++++++++++++- > arch/arm/mach-tegra/gpu.c | 52 +++++++++++++++++++++++++++++---- > board/nvidia/jetson-tk1/jetson-tk1.c | 8 ----- > board/nvidia/p2571/p2571.c | 7 ----- > board/nvidia/venice2/venice2.c | 8 ----- > include/configs/jetson-tk1.h | 2 -- > include/configs/p2571.h | 2 -- > include/configs/tegra-common.h | 2 ++ > include/configs/venice2.h | 2 -- > 12 files changed, 89 insertions(+), 46 deletions(-) > > -- > 2.6.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
