From 3ae657246aed4a498c9be2608b66d5b9741aaf48 Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Thu, 2 Dec 2021 01:26:26 +0300
Subject: drm/msm/dpu: move disable_danger out of plane subdir
Git-commit: 96536242f1ee17fcd64e415234ee185d2bfe9b8c
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
The disable_danger debugfs file is not related to a single plane.
Instead it is used by all registered planes. Move it from plane subtree
to the global subtree next to danger_status and safe_status files,
so that the new file supplements them.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://lore.kernel.org/r/20211201222633.2476780-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 70 +++++++++++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 74 +----------------------
drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h | 6 ++
3 files changed, 77 insertions(+), 73 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 2bd258eaf334..c541dbbd9df8 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -101,6 +101,73 @@ static int dpu_debugfs_safe_stats_show(struct seq_file *s, void *v)
}
DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_safe_stats);
+static ssize_t _dpu_plane_danger_read(struct file *file,
+ char __user *buff, size_t count, loff_t *ppos)
+{
+ struct dpu_kms *kms = file->private_data;
+ int len;
+ char buf[40];
+
+ len = scnprintf(buf, sizeof(buf), "%d\n", !kms->has_danger_ctrl);
+
+ return simple_read_from_buffer(buff, count, ppos, buf, len);
+}
+
+static void _dpu_plane_set_danger_state(struct dpu_kms *kms, bool enable)
+{
+ struct drm_plane *plane;
+
+ drm_for_each_plane(plane, kms->dev) {
+ if (plane->fb && plane->state) {
+ dpu_plane_danger_signal_ctrl(plane, enable);
+ DPU_DEBUG("plane:%d img:%dx%d ",
+ plane->base.id, plane->fb->width,
+ plane->fb->height);
+ DPU_DEBUG("src[%d,%d,%d,%d] dst[%d,%d,%d,%d]\n",
+ plane->state->src_x >> 16,
+ plane->state->src_y >> 16,
+ plane->state->src_w >> 16,
+ plane->state->src_h >> 16,
+ plane->state->crtc_x, plane->state->crtc_y,
+ plane->state->crtc_w, plane->state->crtc_h);
+ } else {
+ DPU_DEBUG("Inactive plane:%d\n", plane->base.id);
+ }
+ }
+}
+
+static ssize_t _dpu_plane_danger_write(struct file *file,
+ const char __user *user_buf, size_t count, loff_t *ppos)
+{
+ struct dpu_kms *kms = file->private_data;
+ int disable_panic;
+ int ret;
+
+ ret = kstrtouint_from_user(user_buf, count, 0, &disable_panic);
+ if (ret)
+ return ret;
+
+ if (disable_panic) {
+ /* Disable panic signal for all active pipes */
+ DPU_DEBUG("Disabling danger:\n");
+ _dpu_plane_set_danger_state(kms, false);
+ kms->has_danger_ctrl = false;
+ } else {
+ /* Enable panic signal for all active pipes */
+ DPU_DEBUG("Enabling danger:\n");
+ kms->has_danger_ctrl = true;
+ _dpu_plane_set_danger_state(kms, true);
+ }
+
+ return count;
+}
+
+static const struct file_operations dpu_plane_danger_enable = {
+ .open = simple_open,
+ .read = _dpu_plane_danger_read,
+ .write = _dpu_plane_danger_write,
+};
+
static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms,
struct dentry *parent)
{
@@ -110,6 +177,9 @@ static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms,
dpu_kms, &dpu_debugfs_danger_stats_fops);
debugfs_create_file("safe_status", 0600, entry,
dpu_kms, &dpu_debugfs_safe_stats_fops);
+ debugfs_create_file("disable_danger", 0600, entry,
+ dpu_kms, &dpu_plane_danger_enable);
+
}
static int _dpu_debugfs_show_regset32(struct seq_file *s, void *data)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index e81043daa749..2ff17debf40c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -1342,7 +1342,7 @@ static void dpu_plane_reset(struct drm_plane *plane)
}
#ifdef CONFIG_DEBUG_FS
-static void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable)
+void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable)
{
struct dpu_plane *pdpu = to_dpu_plane(plane);
struct dpu_kms *dpu_kms = _dpu_plane_get_kms(plane);
@@ -1355,73 +1355,6 @@ static void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable)
pm_runtime_put_sync(&dpu_kms->pdev->dev);
}
-static ssize_t _dpu_plane_danger_read(struct file *file,
- char __user *buff, size_t count, loff_t *ppos)
-{
- struct dpu_kms *kms = file->private_data;
- int len;
- char buf[40];
-
- len = scnprintf(buf, sizeof(buf), "%d\n", !kms->has_danger_ctrl);
-
- return simple_read_from_buffer(buff, count, ppos, buf, len);
-}
-
-static void _dpu_plane_set_danger_state(struct dpu_kms *kms, bool enable)
-{
- struct drm_plane *plane;
-
- drm_for_each_plane(plane, kms->dev) {
- if (plane->fb && plane->state) {
- dpu_plane_danger_signal_ctrl(plane, enable);
- DPU_DEBUG("plane:%d img:%dx%d ",
- plane->base.id, plane->fb->width,
- plane->fb->height);
- DPU_DEBUG("src[%d,%d,%d,%d] dst[%d,%d,%d,%d]\n",
- plane->state->src_x >> 16,
- plane->state->src_y >> 16,
- plane->state->src_w >> 16,
- plane->state->src_h >> 16,
- plane->state->crtc_x, plane->state->crtc_y,
- plane->state->crtc_w, plane->state->crtc_h);
- } else {
- DPU_DEBUG("Inactive plane:%d\n", plane->base.id);
- }
- }
-}
-
-static ssize_t _dpu_plane_danger_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- struct dpu_kms *kms = file->private_data;
- int disable_panic;
- int ret;
-
- ret = kstrtouint_from_user(user_buf, count, 0, &disable_panic);
- if (ret)
- return ret;
-
- if (disable_panic) {
- /* Disable panic signal for all active pipes */
- DPU_DEBUG("Disabling danger:\n");
- _dpu_plane_set_danger_state(kms, false);
- kms->has_danger_ctrl = false;
- } else {
- /* Enable panic signal for all active pipes */
- DPU_DEBUG("Enabling danger:\n");
- kms->has_danger_ctrl = true;
- _dpu_plane_set_danger_state(kms, true);
- }
-
- return count;
-}
-
-static const struct file_operations dpu_plane_danger_enable = {
- .open = simple_open,
- .read = _dpu_plane_danger_read,
- .write = _dpu_plane_danger_write,
-};
-
static int _dpu_plane_init_debugfs(struct drm_plane *plane)
{
struct dpu_plane *pdpu = to_dpu_plane(plane);
@@ -1490,11 +1423,6 @@ static int _dpu_plane_init_debugfs(struct drm_plane *plane)
pdpu->debugfs_root,
(u32 *) &sblk->danger_vblank);
- debugfs_create_file("disable_danger",
- 0600,
- pdpu->debugfs_root,
- kms, &dpu_plane_danger_enable);
-
return 0;
}
#else
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
index 1ee5ca5fcdf7..9d51dad5c6a5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
@@ -126,4 +126,10 @@ void dpu_plane_clear_multirect(const struct drm_plane_state *drm_state);
int dpu_plane_color_fill(struct drm_plane *plane,
uint32_t color, uint32_t alpha);
+#ifdef CONFIG_DEBUG_FS
+void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable);
+#else
+static inline void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable) {}
+#endif
+
#endif /* _DPU_PLANE_H_ */
--
2.38.1