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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)
106 lines
3.3 KiB
Diff
106 lines
3.3 KiB
Diff
From 078e6dfcff1fc4ef0ee3b29a5f94403624c2e7ac Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 20 Jul 2020 16:42:57 +0100
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Subject: [PATCH] drm/vc4: Increase the number of planes per crtc in
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FKMS.
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The number assigned was arbitrary as one primary, one overlay,
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and one cursor.
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The number has to be below the DRM limit of 32 planes total,
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and the current firmware API limit of 16 planes total.
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Increase the number to 8 planes per crtc (1 primary,
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6 overlay, and a cursor).
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_firmware_kms.c | 54 ++++++++++----------------
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1 file changed, 21 insertions(+), 33 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
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+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
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@@ -48,7 +48,7 @@ struct vc4_fkms {
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bool bcm2711;
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};
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-#define PLANES_PER_CRTC 3
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+#define PLANES_PER_CRTC 8
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struct set_plane {
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u8 display;
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@@ -1742,7 +1742,6 @@ static int vc4_fkms_create_screen(struct
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struct vc4_crtc *vc4_crtc;
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struct vc4_fkms_encoder *vc4_encoder;
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struct drm_crtc *crtc;
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- struct drm_plane *primary_plane, *overlay_plane, *cursor_plane;
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struct drm_plane *destroy_plane, *temp;
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struct mailbox_blank_display blank = {
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.tag1 = {RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM, 4, 0, },
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@@ -1750,7 +1749,8 @@ static int vc4_fkms_create_screen(struct
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.tag2 = { RPI_FIRMWARE_FRAMEBUFFER_BLANK, 4, 0, },
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.blank = 1,
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};
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- int ret;
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+ struct drm_plane *planes[PLANES_PER_CRTC];
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+ int ret, i;
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vc4_crtc = devm_kzalloc(dev, sizeof(*vc4_crtc), GFP_KERNEL);
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if (!vc4_crtc)
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@@ -1763,38 +1763,26 @@ static int vc4_fkms_create_screen(struct
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/* Blank the firmware provided framebuffer */
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rpi_firmware_property_list(vc4->firmware, &blank, sizeof(blank));
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- primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY,
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- display_ref,
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- 0 + (display_idx * PLANES_PER_CRTC)
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- );
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- if (IS_ERR(primary_plane)) {
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- dev_err(dev, "failed to construct primary plane\n");
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- ret = PTR_ERR(primary_plane);
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- goto err;
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- }
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-
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- overlay_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_OVERLAY,
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- display_ref,
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- 1 + (display_idx * PLANES_PER_CRTC)
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- );
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- if (IS_ERR(overlay_plane)) {
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- dev_err(dev, "failed to construct overlay plane\n");
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- ret = PTR_ERR(overlay_plane);
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- goto err;
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- }
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-
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- cursor_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_CURSOR,
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- display_ref,
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- 2 + (display_idx * PLANES_PER_CRTC)
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- );
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- if (IS_ERR(cursor_plane)) {
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- dev_err(dev, "failed to construct cursor plane\n");
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- ret = PTR_ERR(cursor_plane);
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- goto err;
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+ for (i = 0; i < PLANES_PER_CRTC; i++) {
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+ planes[i] = vc4_fkms_plane_init(drm,
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+ (i == 0) ?
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+ DRM_PLANE_TYPE_PRIMARY :
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+ (i == PLANES_PER_CRTC - 1) ?
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+ DRM_PLANE_TYPE_CURSOR :
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+ DRM_PLANE_TYPE_OVERLAY,
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+ display_ref,
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+ i + (display_idx * PLANES_PER_CRTC)
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+ );
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+ if (IS_ERR(planes[i])) {
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+ dev_err(dev, "failed to construct plane %u\n", i);
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+ ret = PTR_ERR(planes[i]);
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+ goto err;
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+ }
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}
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- drm_crtc_init_with_planes(drm, crtc, primary_plane, cursor_plane,
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- &vc4_crtc_funcs, NULL);
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+ drm_crtc_init_with_planes(drm, crtc, planes[0],
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+ planes[PLANES_PER_CRTC - 1], &vc4_crtc_funcs,
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+ NULL);
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drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs);
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vc4_encoder = devm_kzalloc(dev, sizeof(*vc4_encoder), GFP_KERNEL);
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