diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-1070-drm-vc4-Add-hvs_dlist_allocs-debugfs-function.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-1070-drm-vc4-Add-hvs_dlist_allocs-debugfs-function.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-1070-drm-vc4-Add-hvs_dlist_allocs-debugfs-function.patch b/target/linux/bcm27xx/patches-6.1/950-1070-drm-vc4-Add-hvs_dlist_allocs-debugfs-function.patch new file mode 100644 index 0000000000..b16489a12d --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-1070-drm-vc4-Add-hvs_dlist_allocs-debugfs-function.patch @@ -0,0 +1,64 @@ +From 665e9810340abc37769b317445907bac1843dd64 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Fri, 27 Oct 2023 16:46:04 +0100 +Subject: [PATCH] drm/vc4: Add hvs_dlist_allocs debugfs function. + +Users are reporting running out of DLIST memory. Add a +debugfs file to dump out all the allocations. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + drivers/gpu/drm/vc4/vc4_hvs.c | 35 +++++++++++++++++++++++++++++++++++ + 1 file changed, 35 insertions(+) + +--- a/drivers/gpu/drm/vc4/vc4_hvs.c ++++ b/drivers/gpu/drm/vc4/vc4_hvs.c +@@ -347,6 +347,36 @@ static int vc5_hvs_debugfs_gamma(struct + return 0; + } + ++static int vc4_hvs_debugfs_dlist_allocs(struct seq_file *m, void *data) ++{ ++ struct drm_info_node *node = m->private; ++ struct drm_device *dev = node->minor->dev; ++ struct vc4_dev *vc4 = to_vc4_dev(dev); ++ struct vc4_hvs *hvs = vc4->hvs; ++ struct drm_printer p = drm_seq_file_printer(m); ++ struct vc4_hvs_dlist_allocation *cur, *next; ++ struct drm_mm_node *mm_node; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&hvs->mm_lock, flags); ++ ++ drm_printf(&p, "Allocated nodes:\n"); ++ list_for_each_entry(mm_node, drm_mm_nodes(&hvs->dlist_mm), node_list) { ++ drm_printf(&p, "node [%08llx + %08llx]\n", mm_node->start, mm_node->size); ++ } ++ ++ drm_printf(&p, "Stale nodes:\n"); ++ list_for_each_entry_safe(cur, next, &hvs->stale_dlist_entries, node) { ++ drm_printf(&p, "node [%08llx + %08llx] channel %u frcnt %u\n", ++ cur->mm_node.start, cur->mm_node.size, cur->channel, ++ cur->target_frame_count); ++ } ++ ++ spin_unlock_irqrestore(&hvs->mm_lock, flags); ++ ++ return 0; ++} ++ + /* The filter kernel is composed of dwords each containing 3 9-bit + * signed integers packed next to each other. + */ +@@ -1602,6 +1632,11 @@ int vc4_hvs_debugfs_init(struct drm_mino + if (ret) + return ret; + ++ ret = vc4_debugfs_add_file(minor, "hvs_dlist_allocs", ++ vc4_hvs_debugfs_dlist_allocs, NULL); ++ if (ret) ++ return ret; ++ + ret = vc4_debugfs_add_regset32(minor, "hvs_regs", + &hvs->regset); + if (ret) |