diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0279-drm-vc4-Add-more-display-planes-to-each-CRTC.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0279-drm-vc4-Add-more-display-planes-to-each-CRTC.patch | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0279-drm-vc4-Add-more-display-planes-to-each-CRTC.patch b/target/linux/brcm2708/patches-4.4/0279-drm-vc4-Add-more-display-planes-to-each-CRTC.patch deleted file mode 100644 index 6c847f5adc..0000000000 --- a/target/linux/brcm2708/patches-4.4/0279-drm-vc4-Add-more-display-planes-to-each-CRTC.patch +++ /dev/null @@ -1,106 +0,0 @@ -From befbfa7af4719d0496df2b79fbc4c8742e1b4ab4 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Tue, 20 Oct 2015 14:18:56 +0100 -Subject: [PATCH] drm/vc4: Add more display planes to each CRTC. - -Previously we only did the primary and cursor plane, but overlay -planes are useful and just require this setup to add, since all planes -go into the HVS display list in the same way. - -Signed-off-by: Eric Anholt <eric@anholt.net> -(cherry picked from commit fc2d6f1eabee9d971453da2a27a72471c2a347dd) ---- - drivers/gpu/drm/vc4/vc4_crtc.c | 56 ++++++++++++++++++++++++++++++------------ - 1 file changed, 40 insertions(+), 16 deletions(-) - ---- a/drivers/gpu/drm/vc4/vc4_crtc.c -+++ b/drivers/gpu/drm/vc4/vc4_crtc.c -@@ -677,9 +677,9 @@ static int vc4_crtc_bind(struct device * - struct vc4_dev *vc4 = to_vc4_dev(drm); - struct vc4_crtc *vc4_crtc; - struct drm_crtc *crtc; -- struct drm_plane *primary_plane, *cursor_plane; -+ struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp; - const struct of_device_id *match; -- int ret; -+ int ret, i; - - vc4_crtc = devm_kzalloc(dev, sizeof(*vc4_crtc), GFP_KERNEL); - if (!vc4_crtc) -@@ -708,27 +708,49 @@ static int vc4_crtc_bind(struct device * - goto err; - } - -- cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR); -- if (IS_ERR(cursor_plane)) { -- dev_err(dev, "failed to construct cursor plane\n"); -- ret = PTR_ERR(cursor_plane); -- goto err_primary; -- } -- -- drm_crtc_init_with_planes(drm, crtc, primary_plane, cursor_plane, -+ drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, - &vc4_crtc_funcs); - drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs); - primary_plane->crtc = crtc; -- cursor_plane->crtc = crtc; - vc4->crtc[drm_crtc_index(crtc)] = vc4_crtc; - vc4_crtc->channel = vc4_crtc->data->hvs_channel; - -+ /* Set up some arbitrary number of planes. We're not limited -+ * by a set number of physical registers, just the space in -+ * the HVS (16k) and how small an plane can be (28 bytes). -+ * However, each plane we set up takes up some memory, and -+ * increases the cost of looping over planes, which atomic -+ * modesetting does quite a bit. As a result, we pick a -+ * modest number of planes to expose, that should hopefully -+ * still cover any sane usecase. -+ */ -+ for (i = 0; i < 8; i++) { -+ struct drm_plane *plane = -+ vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY); -+ -+ if (IS_ERR(plane)) -+ continue; -+ -+ plane->possible_crtcs = 1 << drm_crtc_index(crtc); -+ } -+ -+ /* Set up the legacy cursor after overlay initialization, -+ * since we overlay planes on the CRTC in the order they were -+ * initialized. -+ */ -+ cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR); -+ if (!IS_ERR(cursor_plane)) { -+ cursor_plane->possible_crtcs = 1 << drm_crtc_index(crtc); -+ cursor_plane->crtc = crtc; -+ crtc->cursor = cursor_plane; -+ } -+ - CRTC_WRITE(PV_INTEN, 0); - CRTC_WRITE(PV_INTSTAT, PV_INT_VFP_START); - ret = devm_request_irq(dev, platform_get_irq(pdev, 0), - vc4_crtc_irq_handler, 0, "vc4 crtc", vc4_crtc); - if (ret) -- goto err_cursor; -+ goto err_destroy_planes; - - vc4_set_crtc_possible_masks(drm, crtc); - -@@ -736,10 +758,12 @@ static int vc4_crtc_bind(struct device * - - return 0; - --err_cursor: -- cursor_plane->funcs->destroy(cursor_plane); --err_primary: -- primary_plane->funcs->destroy(primary_plane); -+err_destroy_planes: -+ list_for_each_entry_safe(destroy_plane, temp, -+ &drm->mode_config.plane_list, head) { -+ if (destroy_plane->possible_crtcs == 1 << drm_crtc_index(crtc)) -+ destroy_plane->funcs->destroy(destroy_plane); -+ } - err: - return ret; - } |