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| author | Thierry Reding <treding@nvidia.com> | 2017-12-14 13:37:53 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-12-21 14:52:34 +0100 |
| commit | 1087fac18b8e3ec8fadf1595bbc46dce7ff08a81 (patch) | |
| tree | bcaa99364e5ef62abc799aa36aa4625235e3a61a /drivers/gpu/drm/tegra/hub.h | |
| parent | 511c7023cf23421d1d0455b22c139fe1be1b9e87 (diff) | |
| download | linux-stable-1087fac18b8e3ec8fadf1595bbc46dce7ff08a81.tar.gz linux-stable-1087fac18b8e3ec8fadf1595bbc46dce7ff08a81.tar.bz2 linux-stable-1087fac18b8e3ec8fadf1595bbc46dce7ff08a81.zip | |
drm/tegra: dc: Use direct offset to plane registers
Traditionally, windows were accessed indirectly, through a register
selection window that required a global register to be programmed with
the index of the window to access. Since the global register could be
written from modesetting functions as well as the interrupt handler
concurrently, accesses had to be serialized using a lock. Using direct
accesses to the window registers the lock can be avoided.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/hub.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/hub.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/hub.h b/drivers/gpu/drm/tegra/hub.h index 965c333736b0..890a47cd05c3 100644 --- a/drivers/gpu/drm/tegra/hub.h +++ b/drivers/gpu/drm/tegra/hub.h @@ -28,7 +28,6 @@ struct tegra_windowgroup { struct tegra_shared_plane { struct tegra_plane base; struct tegra_windowgroup *wgrp; - struct tegra_dc *dc; }; static inline struct tegra_shared_plane * |