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SubjectRe: [PATCHv2 0/4] gpu: host1x: Add syncpoint base support
On Mon, Oct 14, 2013 at 03:21:51PM +0300, Arto Merilainen wrote:
> The host1x driver uses currently syncpoints statically from host1x point of
> view. If we do a wait inside a job, it always has a constant value to wait.
> host1x supports also doing relative syncpoint waits with respect to syncpoint
> bases. This allows doing multiple operations inside a single submit and
> waiting an operation to complete before moving to next one.
>
> This set of patches adds support for syncpoint bases to host1x driver and
> enables the support for gr2d client.
>
> I have tested the series using the host1x test application (available at [0],
> function test_wait_base() in tests/tegra/host1x/tegra_host1x_test.c) on cardhu.
> I would appreciate help in reviewing the series and testing the patches
> on other boards.
>
> Changes in v2:
> - Reordered various code blocks to improve code consistency
> - Functions host1x_syncpt_alloc() and host1x_syncpt_request() take now a single
> bitfield argument instead of separate boolean arguments
> - Added a separate ioctl call for querying the base associated with some
> syncpoint
>
> [0] https://gitorious.org/linux-host1x/libdrm-host1x
>
> Arto Merilainen (4):
> gpu: host1x: Add 'flags' field to syncpt request
> gpu: host1x: Add syncpoint base support
> drm/tegra: Deliver syncpoint base to user space
> drm/tegra: Reserve base for gr2d
>
> drivers/gpu/host1x/dev.h | 2 ++
> drivers/gpu/host1x/drm/drm.c | 25 +++++++++++++
> drivers/gpu/host1x/drm/gr2d.c | 2 +-
> drivers/gpu/host1x/hw/channel_hw.c | 19 ++++++++++
> drivers/gpu/host1x/hw/hw_host1x01_uclass.h | 6 ++++
> drivers/gpu/host1x/syncpt.c | 58 +++++++++++++++++++++++++-----
> drivers/gpu/host1x/syncpt.h | 10 +++++-
> include/uapi/drm/tegra_drm.h | 26 +++++++++-----
> 8 files changed, 128 insertions(+), 20 deletions(-)

I've applied the series, though I had to rework some of it because
host1x and DRM have significantly changed in the meantime.

Thierry
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