Andy Hu
e1839688b8
upgrade the weston to 10.0.1 for IMG DDK 1.19 and copy patches from IMG DDK 1.19 fix the patch and building issue Signed-off-by: Andy Hu <andy.hu@starfivetech.com>
54 lines
2.1 KiB
Diff
54 lines
2.1 KiB
Diff
From 386618c7f40b9a5ad93b0c68a622ea38a63378c6 Mon Sep 17 00:00:00 2001
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From: Brendan King <Brendan.King@imgtec.com>
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Date: Wed, 20 Apr 2022 11:56:50 +0000
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Subject: [PATCH 5/5] backend-drm: allow linear framebuffers if no KMS modifier
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support
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If KMS doesn't support modifiers, but a framebuffer is supplied via
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a dmabuf with a linear modifier, assume the buffer is compatible with
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KMS. This scenario can occur when different drivers are used for the
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GPU and KMS, and the GPU driver supports modifiers.
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Some platforms used internally by IMG, such as the Acer R13 Chromebook,
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have KMS drivers that don't support modifiers. Without this change,
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applications such as weston-simple-egl cannot keep up with vsync.
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This problem didn't occur with older versions of Weston (e.g, 9.0.0).
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This change can be dropped for platforms where KMS supports modifiers.
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The change that prompted this one was:
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commit 567cc92797846081506ccb36e6af99884a8b6cf2
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Author: Leandro Ribeiro <leandro.ribeiro@collabora.com>
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Date: Wed Apr 21 11:44:53 2021 -0300
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backend-drm: add DRM_FORMAT_MOD_INVALID to modifier sets when no
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modifiers are supported
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---
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libweston/backend-drm/fb.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/libweston/backend-drm/fb.c b/libweston/backend-drm/fb.c
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index 3c664779..c59e0a99 100644
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--- a/libweston/backend-drm/fb.c
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+++ b/libweston/backend-drm/fb.c
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@@ -489,6 +489,15 @@ drm_fb_compatible_with_plane(struct drm_fb *fb, struct drm_plane *plane)
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if (weston_drm_format_has_modifier(fmt, fb->modifier))
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return true;
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+
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+ /* KMS doesn't support modifiers, but we've been sent a dmabuf
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+ * with a linear modifier. This can happen if different drivers
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+ * are used for the GPU and KMS, and the GPU driver supports
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+ * modifiers. Assume this is valid combination. */
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+ if (fb->modifier == DRM_FORMAT_MOD_LINEAR &&
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+ weston_drm_format_has_modifier(fmt, DRM_FORMAT_MOD_INVALID))
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+ return true;
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+
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}
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drm_debug(b, "\t\t\t\t[%s] not placing view on %s: "
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--
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2.25.1
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