On Tue, Jan 15, 2013 at 01:26:14PM +0200, Terje Bergstrom wrote:
This set of patches adds support for Tegra20 and Tegra30 host1x and 2D. It is based on linux-next-20130114.
The fifth version merges DRM and host1x drivers into one driver. This allowed moving include/linux/host1x.h back into the driver and removed the need for a dummy platform device. This version also uses the code from tegradrm driver almost as is, so there are a lot less actual code changes.
This patch set does not have the host1x allocator, but it uses CMA helpers for memory management.
host1x is the driver that controls host1x hardware. It supports host1x command channels, synchronization, and memory management. It is sectioned into logical driver under drivers/gpu/host1x and physical driver under drivers/host1x/hw. The physical driver is compiled with the hardware headers of the particular host1x version.
The hardware units are described (briefly) in the Tegra2 TRM. Wiki page https://gitorious.org/linux-tegra-drm/pages/Host1xIntroduction also contains a short description of the functionality.
The patch set merges tegradrm into host1x and adds 2D driver, which uses host1x channels and sync points. The patch set also adds user space API to tegradrm for accessing host1x and 2D.
Terje Bergstrom (8): gpu: host1x: Add host1x driver gpu: host1x: Add syncpoint wait and interrupts gpu: host1x: Add channel support gpu: host1x: Add debug support drm: tegra: Move drm to live under host1x gpu: host1x: Remove second host1x driver ARM: tegra: Add board data and 2D clocks drm: tegra: Add gr2d device
Hi Terje,
Just by a quick glance this looks like we're getting closer. To make reviewing easier, would you mind resending patches formatted with -M so that git actually detects that tegra-drm was moved. That should make it easy to see what exactly needed to be changed besides the relocation.
Thierry