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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
126 lines
4.3 KiB
Diff
126 lines
4.3 KiB
Diff
From ac2c812856c3a496354b9f19d0a43458e108844d Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Thu, 6 Feb 2020 14:32:57 +0100
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Subject: [PATCH] drm/vc4: plane: Move planes creation to its own
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function
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The planes so far were created as part of the CRTC binding code with
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each planes created associated only to one CRTC. However, the hardware
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in the vc4 doesn't really have such constraint and can be used with any
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CRTC.
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In order to rework this, let's first move the overlay and cursor planes
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creation to a function of its own.
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/vc4_crtc.c | 33 ++++------------------------
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drivers/gpu/drm/vc4/vc4_drv.h | 2 ++
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drivers/gpu/drm/vc4/vc4_plane.c | 38 +++++++++++++++++++++++++++++++++
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3 files changed, 44 insertions(+), 29 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_crtc.c
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+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
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@@ -1142,7 +1142,7 @@ static int vc4_crtc_bind(struct device *
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struct drm_device *drm = dev_get_drvdata(master);
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struct vc4_crtc *vc4_crtc;
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struct drm_crtc *crtc;
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- struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp;
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+ struct drm_plane *primary_plane, *destroy_plane, *temp;
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const struct of_device_id *match;
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int ret, i;
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@@ -1190,34 +1190,9 @@ static int vc4_crtc_bind(struct device *
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*/
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drm_crtc_enable_color_mgmt(crtc, 0, true, crtc->gamma_size);
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- /* Set up some arbitrary number of planes. We're not limited
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- * by a set number of physical registers, just the space in
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- * the HVS (16k) and how small an plane can be (28 bytes).
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- * However, each plane we set up takes up some memory, and
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- * increases the cost of looping over planes, which atomic
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- * modesetting does quite a bit. As a result, we pick a
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- * modest number of planes to expose, that should hopefully
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- * still cover any sane usecase.
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- */
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- for (i = 0; i < 8; i++) {
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- struct drm_plane *plane =
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- vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY);
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-
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- if (IS_ERR(plane))
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- continue;
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-
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- plane->possible_crtcs = drm_crtc_mask(crtc);
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- }
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-
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- /* Set up the legacy cursor after overlay initialization,
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- * since we overlay planes on the CRTC in the order they were
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- * initialized.
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- */
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- cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR);
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- if (!IS_ERR(cursor_plane)) {
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- cursor_plane->possible_crtcs = drm_crtc_mask(crtc);
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- crtc->cursor = cursor_plane;
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- }
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+ ret = vc4_plane_create_additional_planes(drm, crtc);
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+ if (ret)
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+ goto err_destroy_planes;
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vc4_crtc_get_cob_allocation(vc4_crtc);
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--- a/drivers/gpu/drm/vc4/vc4_drv.h
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+++ b/drivers/gpu/drm/vc4/vc4_drv.h
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@@ -855,6 +855,8 @@ int vc4_kms_load(struct drm_device *dev)
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/* vc4_plane.c */
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struct drm_plane *vc4_plane_init(struct drm_device *dev,
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enum drm_plane_type type);
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+int vc4_plane_create_additional_planes(struct drm_device *dev,
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+ struct drm_crtc *crtc);
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u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist);
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u32 vc4_plane_dlist_size(const struct drm_plane_state *state);
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void vc4_plane_async_set_fb(struct drm_plane *plane,
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--- a/drivers/gpu/drm/vc4/vc4_plane.c
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+++ b/drivers/gpu/drm/vc4/vc4_plane.c
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@@ -1447,3 +1447,41 @@ struct drm_plane *vc4_plane_init(struct
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return plane;
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}
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+
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+int vc4_plane_create_additional_planes(struct drm_device *drm,
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+ struct drm_crtc *crtc)
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+{
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+ struct drm_plane *cursor_plane;
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+ unsigned int i;
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+
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+ /* Set up some arbitrary number of planes. We're not limited
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+ * by a set number of physical registers, just the space in
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+ * the HVS (16k) and how small an plane can be (28 bytes).
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+ * However, each plane we set up takes up some memory, and
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+ * increases the cost of looping over planes, which atomic
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+ * modesetting does quite a bit. As a result, we pick a
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+ * modest number of planes to expose, that should hopefully
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+ * still cover any sane usecase.
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+ */
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+ for (i = 0; i < 8; i++) {
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+ struct drm_plane *plane =
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+ vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY);
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+
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+ if (IS_ERR(plane))
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+ continue;
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+
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+ plane->possible_crtcs = drm_crtc_mask(crtc);
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+ }
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+
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+ /* Set up the legacy cursor after overlay initialization,
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+ * since we overlay planes on the CRTC in the order they were
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+ * initialized.
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+ */
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+ cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR);
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+ if (!IS_ERR(cursor_plane)) {
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+ cursor_plane->possible_crtcs = drm_crtc_mask(crtc);
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+ crtc->cursor = cursor_plane;
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+ }
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+
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+ return 0;
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+}
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