@@ -5,6 +5,7 @@
ccflags-y := -Iinclude/drm -Werror
omapdrm-y := omap_drv.o \
+ omap_debugfs.o \
omap_crtc.o \
omap_encoder.o \
omap_connector.o \
new file mode 100644
@@ -0,0 +1,42 @@
+/*
+ * drivers/staging/omapdrm/omap_debugfs.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob.clark@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+#include "omap_dmm_tiler.h"
+
+#ifdef CONFIG_DEBUG_FS
+
+static struct drm_info_list omap_debugfs_list[] = {
+ {"tiler_map", tiler_map_show, 0},
+};
+
+int omap_debugfs_init(struct drm_minor *minor)
+{
+ return drm_debugfs_create_files(omap_debugfs_list,
+ ARRAY_SIZE(omap_debugfs_list),
+ minor->debugfs_root, minor);
+}
+
+void omap_debugfs_cleanup(struct drm_minor *minor)
+{
+ drm_debugfs_remove_files(omap_debugfs_list,
+ ARRAY_SIZE(omap_debugfs_list), minor);
+}
+
+#endif
@@ -679,3 +679,152 @@ fail:
omap_dmm_remove();
return ret;
}
+
+/*
+ * debugfs support
+ */
+
+#ifdef CONFIG_DEBUG_FS
+
+static const char *alphabet = "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+static const char *special = ".,:;'\"`~!^-+";
+
+static void fill_map(char **map, int xdiv, int ydiv, struct tcm_area *a,
+ char c, bool ovw)
+{
+ int x, y;
+ for (y = a->p0.y / ydiv; y <= a->p1.y / ydiv; y++)
+ for (x = a->p0.x / xdiv; x <= a->p1.x / xdiv; x++)
+ if (map[y][x] == ' ' || ovw)
+ map[y][x] = c;
+}
+
+static void fill_map_pt(char **map, int xdiv, int ydiv, struct tcm_pt *p,
+ char c)
+{
+ map[p->y / ydiv][p->x / xdiv] = c;
+}
+
+static char read_map_pt(char **map, int xdiv, int ydiv, struct tcm_pt *p)
+{
+ return map[p->y / ydiv][p->x / xdiv];
+}
+
+static int map_width(int xdiv, int x0, int x1)
+{
+ return (x1 / xdiv) - (x0 / xdiv) + 1;
+}
+
+static void text_map(char **map, int xdiv, char *nice, int yd, int x0, int x1)
+{
+ char *p = map[yd] + (x0 / xdiv);
+ int w = (map_width(xdiv, x0, x1) - strlen(nice)) / 2;
+ if (w >= 0) {
+ p += w;
+ while (*nice)
+ *p++ = *nice++;
+ }
+}
+
+static void map_1d_info(char **map, int xdiv, int ydiv, char *nice,
+ struct tcm_area *a)
+{
+ sprintf(nice, "%dK", tcm_sizeof(*a) * 4);
+ if (a->p0.y + 1 < a->p1.y) {
+ text_map(map, xdiv, nice, (a->p0.y + a->p1.y) / 2 / ydiv, 0,
+ 256 - 1);
+ } else if (a->p0.y < a->p1.y) {
+ if (strlen(nice) < map_width(xdiv, a->p0.x, 256 - 1))
+ text_map(map, xdiv, nice, a->p0.y / ydiv,
+ a->p0.x + xdiv, 256 - 1);
+ else if (strlen(nice) < map_width(xdiv, 0, a->p1.x))
+ text_map(map, xdiv, nice, a->p1.y / ydiv,
+ 0, a->p1.y - xdiv);
+ } else if (strlen(nice) + 1 < map_width(xdiv, a->p0.x, a->p1.x)) {
+ text_map(map, xdiv, nice, a->p0.y / ydiv, a->p0.x, a->p1.x);
+ }
+}
+
+static void map_2d_info(char **map, int xdiv, int ydiv, char *nice,
+ struct tcm_area *a)
+{
+ sprintf(nice, "(%d*%d)", tcm_awidth(*a), tcm_aheight(*a));
+ if (strlen(nice) + 1 < map_width(xdiv, a->p0.x, a->p1.x))
+ text_map(map, xdiv, nice, (a->p0.y + a->p1.y) / 2 / ydiv,
+ a->p0.x, a->p1.x);
+}
+
+int tiler_map_show(struct seq_file *s, void *arg)
+{
+ int xdiv = 2, ydiv = 1;
+ char **map = NULL, *global_map;
+ struct tiler_block *block;
+ struct tcm_area a, p;
+ int i;
+ const char *m2d = alphabet;
+ const char *a2d = special;
+ const char *m2dp = m2d, *a2dp = a2d;
+ char nice[128];
+ int h_adj = omap_dmm->lut_height / ydiv;
+ int w_adj = omap_dmm->lut_width / xdiv;
+ unsigned long flags;
+
+ map = kzalloc(h_adj * sizeof(*map), GFP_KERNEL);
+ global_map = kzalloc((w_adj + 1) * h_adj, GFP_KERNEL);
+
+ if (!map || !global_map)
+ goto error;
+
+ memset(global_map, ' ', (w_adj + 1) * h_adj);
+ for (i = 0; i < omap_dmm->lut_height; i++) {
+ map[i] = global_map + i * (w_adj + 1);
+ map[i][w_adj] = 0;
+ }
+ spin_lock_irqsave(&omap_dmm->list_lock, flags);
+
+ list_for_each_entry(block, &omap_dmm->alloc_head, alloc_node) {
+ if (block->fmt != TILFMT_PAGE) {
+ fill_map(map, xdiv, ydiv, &block->area, *m2dp, true);
+ if (!*++a2dp)
+ a2dp = a2d;
+ if (!*++m2dp)
+ m2dp = m2d;
+ map_2d_info(map, xdiv, ydiv, nice, &block->area);
+ } else {
+ bool start = read_map_pt(map, xdiv, ydiv,
+ &block->area.p0)
+ == ' ';
+ bool end = read_map_pt(map, xdiv, ydiv, &block->area.p1)
+ == ' ';
+ tcm_for_each_slice(a, block->area, p)
+ fill_map(map, xdiv, ydiv, &a, '=', true);
+ fill_map_pt(map, xdiv, ydiv, &block->area.p0,
+ start ? '<' : 'X');
+ fill_map_pt(map, xdiv, ydiv, &block->area.p1,
+ end ? '>' : 'X');
+ map_1d_info(map, xdiv, ydiv, nice, &block->area);
+ }
+ }
+
+ spin_unlock_irqrestore(&omap_dmm->list_lock, flags);
+
+ if (s) {
+ seq_printf(s, "BEGIN DMM TILER MAP\n");
+ for (i = 0; i < 128; i++)
+ seq_printf(s, "%03d:%s\n", i, map[i]);
+ seq_printf(s, "END TILER MAP\n");
+ } else {
+ dev_dbg(omap_dmm->dev, "BEGIN DMM TILER MAP\n");
+ for (i = 0; i < 128; i++)
+ dev_dbg(omap_dmm->dev, "%03d:%s\n", i, map[i]);
+ dev_dbg(omap_dmm->dev, "END TILER MAP\n");
+ }
+
+error:
+ kfree(map);
+ kfree(global_map);
+
+ return 0;
+}
+#endif
@@ -76,6 +76,10 @@ struct tiler_block {
int omap_dmm_init(struct drm_device *dev);
int omap_dmm_remove(void);
+#ifdef CONFIG_DEBUG_FS
+int tiler_map_show(struct seq_file *s, void *arg);
+#endif
+
/* pin/unpin */
int tiler_pin(struct tiler_block *block, struct page **pages,
uint32_t npages, uint32_t roll, bool wait);
@@ -726,6 +726,10 @@ static struct drm_driver omap_drm_driver = {
.irq_uninstall = dev_irq_uninstall,
.irq_handler = dev_irq_handler,
.reclaim_buffers = drm_core_reclaim_buffers,
+#ifdef CONFIG_DEBUG_FS
+ .debugfs_init = omap_debugfs_init,
+ .debugfs_cleanup = omap_debugfs_cleanup,
+#endif
.gem_init_object = omap_gem_init_object,
.gem_free_object = omap_gem_free_object,
.gem_vm_ops = &omap_gem_vm_ops,
@@ -51,6 +51,11 @@ struct omap_drm_private {
bool has_dmm;
};
+#ifdef CONFIG_DEBUG_FS
+int omap_debugfs_init(struct drm_minor *minor);
+void omap_debugfs_cleanup(struct drm_minor *minor);
+#endif
+
struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
void omap_fbdev_free(struct drm_device *dev);