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openwrt/target/linux/bcm27xx/patches-6.6/950-0582-drm-vc4-plane-Add-more-debugging-for-LBM-allocation.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

38 lines
1.2 KiB
Diff

From 5527c7ec24b22b1a8fc242dcbb83c4455e0bca28 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 22 Mar 2023 16:17:57 +0100
Subject: [PATCH 0582/1085] drm/vc4: plane: Add more debugging for LBM
allocation
LBM allocations need a different size depending on the line length,
format, etc.
This can get tricky, and fail. Let's add some more prints to ease the
debugging when it does.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/gpu/drm/vc4/vc4_plane.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -735,6 +735,7 @@ static int vc4_plane_allocate_lbm(struct
{
struct drm_device *drm = state->plane->dev;
struct vc4_dev *vc4 = to_vc4_dev(drm);
+ struct drm_plane *plane = state->plane;
struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
unsigned long irqflags;
u32 lbm_size;
@@ -743,6 +744,9 @@ static int vc4_plane_allocate_lbm(struct
if (!lbm_size)
return 0;
+ drm_dbg_driver(drm, "[PLANE:%d:%s] LBM Allocation Size: %u\n",
+ plane->base.id, plane->name, lbm_size);
+
if (WARN_ON(!vc4_state->lbm_offset))
return -EINVAL;