ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/armada/armada_debugfs.c b/marvell/linux/drivers/gpu/drm/armada/armada_debugfs.c
new file mode 100644
index 0000000..c6fc2f1
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/armada/armada_debugfs.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ * Rewritten from the dovefb driver, and Armada510 manuals.
+ */
+
+#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
+
+#include <drm/drm_debugfs.h>
+#include <drm/drm_file.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+
+static int armada_debugfs_gem_linear_show(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct armada_private *priv = dev->dev_private;
+ struct drm_printer p = drm_seq_file_printer(m);
+
+ mutex_lock(&priv->linear_lock);
+ drm_mm_print(&priv->linear, &p);
+ mutex_unlock(&priv->linear_lock);
+
+ return 0;
+}
+
+static int armada_debugfs_crtc_reg_show(struct seq_file *m, void *data)
+{
+ struct armada_crtc *dcrtc = m->private;
+ int i;
+
+ for (i = 0x84; i <= 0x1c4; i += 4) {
+ u32 v = readl_relaxed(dcrtc->base + i);
+ seq_printf(m, "0x%04x: 0x%08x\n", i, v);
+ }
+
+ return 0;
+}
+
+static int armada_debugfs_crtc_reg_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, armada_debugfs_crtc_reg_show,
+ inode->i_private);
+}
+
+static int armada_debugfs_crtc_reg_write(struct file *file,
+ const char __user *ptr, size_t len, loff_t *off)
+{
+ struct armada_crtc *dcrtc;
+ unsigned long reg, mask, val;
+ char buf[32];
+ int ret;
+ u32 v;
+
+ if (*off != 0)
+ return 0;
+
+ if (len > sizeof(buf) - 1)
+ len = sizeof(buf) - 1;
+
+ ret = strncpy_from_user(buf, ptr, len);
+ if (ret < 0)
+ return ret;
+ buf[len] = '\0';
+
+ if (sscanf(buf, "%lx %lx %lx", ®, &mask, &val) != 3)
+ return -EINVAL;
+ if (reg < 0x84 || reg > 0x1c4 || reg & 3)
+ return -ERANGE;
+
+ dcrtc = ((struct seq_file *)file->private_data)->private;
+ v = readl(dcrtc->base + reg);
+ v &= ~mask;
+ v |= val & mask;
+ writel(v, dcrtc->base + reg);
+
+ return len;
+}
+
+static const struct file_operations armada_debugfs_crtc_reg_fops = {
+ .owner = THIS_MODULE,
+ .open = armada_debugfs_crtc_reg_open,
+ .read = seq_read,
+ .write = armada_debugfs_crtc_reg_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc)
+{
+ debugfs_create_file("armada-regs", 0600, dcrtc->crtc.debugfs_entry,
+ dcrtc, &armada_debugfs_crtc_reg_fops);
+}
+
+static struct drm_info_list armada_debugfs_list[] = {
+ { "gem_linear", armada_debugfs_gem_linear_show, 0 },
+};
+#define ARMADA_DEBUGFS_ENTRIES ARRAY_SIZE(armada_debugfs_list)
+
+int armada_drm_debugfs_init(struct drm_minor *minor)
+{
+ drm_debugfs_create_files(armada_debugfs_list, ARMADA_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+
+ return 0;
+}