diff options
author | 2016-04-11 10:41:07 +0300 | |
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committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/sti/sti_plane.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/sti/sti_plane.c')
-rw-r--r-- | kernel/drivers/gpu/drm/sti/sti_plane.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/sti/sti_plane.c b/kernel/drivers/gpu/drm/sti/sti_plane.c new file mode 100644 index 000000000..2e5c75191 --- /dev/null +++ b/kernel/drivers/gpu/drm/sti/sti_plane.c @@ -0,0 +1,119 @@ +/* + * Copyright (C) STMicroelectronics SA 2014 + * Authors: Benjamin Gaignard <benjamin.gaignard@st.com> + * Fabien Dessenne <fabien.dessenne@st.com> + * for STMicroelectronics. + * License terms: GNU General Public License (GPL), version 2 + */ + +#include <drm/drmP.h> +#include <drm/drm_fb_cma_helper.h> +#include <drm/drm_gem_cma_helper.h> + +#include "sti_compositor.h" +#include "sti_drv.h" +#include "sti_plane.h" + +/* (Background) < GDP0 < GDP1 < HQVDP0 < GDP2 < GDP3 < (ForeGround) */ +enum sti_plane_desc sti_plane_default_zorder[] = { + STI_GDP_0, + STI_GDP_1, + STI_HQVDP_0, + STI_GDP_2, + STI_GDP_3, +}; + +const char *sti_plane_to_str(struct sti_plane *plane) +{ + switch (plane->desc) { + case STI_GDP_0: + return "GDP0"; + case STI_GDP_1: + return "GDP1"; + case STI_GDP_2: + return "GDP2"; + case STI_GDP_3: + return "GDP3"; + case STI_HQVDP_0: + return "HQVDP0"; + case STI_CURSOR: + return "CURSOR"; + default: + return "<UNKNOWN PLANE>"; + } +} + +static void sti_plane_destroy(struct drm_plane *drm_plane) +{ + DRM_DEBUG_DRIVER("\n"); + + drm_plane_helper_disable(drm_plane); + drm_plane_cleanup(drm_plane); +} + +static int sti_plane_set_property(struct drm_plane *drm_plane, + struct drm_property *property, + uint64_t val) +{ + struct drm_device *dev = drm_plane->dev; + struct sti_private *private = dev->dev_private; + struct sti_plane *plane = to_sti_plane(drm_plane); + + DRM_DEBUG_DRIVER("\n"); + + if (property == private->plane_zorder_property) { + plane->zorder = val; + return 0; + } + + return -EINVAL; +} + +static void sti_plane_attach_zorder_property(struct drm_plane *drm_plane) +{ + struct drm_device *dev = drm_plane->dev; + struct sti_private *private = dev->dev_private; + struct sti_plane *plane = to_sti_plane(drm_plane); + struct drm_property *prop; + + prop = private->plane_zorder_property; + if (!prop) { + prop = drm_property_create_range(dev, 0, "zpos", 1, + GAM_MIXER_NB_DEPTH_LEVEL); + if (!prop) + return; + + private->plane_zorder_property = prop; + } + + drm_object_attach_property(&drm_plane->base, prop, plane->zorder); +} + +void sti_plane_init_property(struct sti_plane *plane, + enum drm_plane_type type) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(sti_plane_default_zorder); i++) + if (sti_plane_default_zorder[i] == plane->desc) + break; + + plane->zorder = i + 1; + + if (type == DRM_PLANE_TYPE_OVERLAY) + sti_plane_attach_zorder_property(&plane->drm_plane); + + DRM_DEBUG_DRIVER("drm plane:%d mapped to %s with zorder:%d\n", + plane->drm_plane.base.id, + sti_plane_to_str(plane), plane->zorder); +} + +struct drm_plane_funcs sti_plane_helpers_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .destroy = sti_plane_destroy, + .set_property = sti_plane_set_property, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; |