Re: [PATCH 2/2] gpu: host1x: Use SMMU on Tegra124 and Tegra210

On 25/03/2020 20:16, Thierry Reding wrote:

From: Thierry Reding treding@nvidia.com

Tegra124 and Tegra210 support addressing more than 32 bits of physical memory. However, since their host1x does not support the wide GATHER opcode, they should use the SMMU if at all possible to ensure that all the system memory can be used for command buffers, irrespective of whether or not the host1x firewall is enabled.

Signed-off-by: Thierry Reding treding@nvidia.com

drivers/gpu/host1x/dev.c | 46 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 42 insertions(+), 4 deletions(-)

Tested-by: Jon Hunter jonathanh@nvidia.com

Cheers Jon