openwrt/target/linux/bcm27xx/patches-6.1/950-0935-drm-vc4-plane-Add-more-debugging-for-LBM-allocation.patch
Marty Jones 2e715fb4fc bcm27xx: update 6.1 patches to latest version
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-01-25 17:46:45 +01:00

37 lines
1.1 KiB
Diff

From 164f7e94da446984f275be1c082b93243beadfba Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 22 Mar 2023 16:17:57 +0100
Subject: [PATCH] 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;