From: Christian Gmeiner <christian.gmeiner@xxxxxxxxx>
This is very useful for debugging issues regarding command
buffer processing.
Signed-off-by: Christian Gmeiner <christian.gmeiner@xxxxxxxxx>
---
drivers/staging/etnaviv/etnaviv_drv.c | 39 +++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/staging/etnaviv/etnaviv_drv.c b/drivers/staging/etnaviv/etnaviv_drv.c
index 85dbe3813859..d55d2c9f4d0f 100644
--- a/drivers/staging/etnaviv/etnaviv_drv.c
+++ b/drivers/staging/etnaviv/etnaviv_drv.c
@@ -21,6 +21,7 @@
#include "etnaviv_gpu.h"
#include "etnaviv_gem.h"
#include "etnaviv_mmu.h"
+#include "etnaviv_gem.h"
#ifdef CONFIG_DRM_ETNAVIV_REGISTER_LOGGING
static bool reglog;
@@ -234,6 +235,43 @@ static int etnaviv_mmu_show(struct drm_device *dev, struct seq_file *m)
return 0;
}
+static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, struct seq_file *m)
+{
+ struct etnaviv_gem_object *obj = to_etnaviv_bo(gpu->buffer);
+ u32 size = obj->base.size;
+ u32 *ptr = obj->vaddr;
+ u32 i;
+
+ seq_printf(m, "virt %p - phys 0x%llx - free 0x%08x\n",
+ obj->vaddr, (u64)obj->paddr, size - (obj->offset * 4));
+
+ for (i = 0; i < size / 4; i++) {
+ if (i && !(i % 4))
+ seq_puts(m, "\n");
+ if (i % 4 == 0)
+ seq_printf(m, "\t0x%p: ", ptr + i);
+ seq_printf(m, "%08x ", *(ptr + i));
+ }
+ seq_puts(m, "\n");
+}
+
+static int etnaviv_ring_show(struct drm_device *dev, struct seq_file *m)
+{
+ struct etnaviv_drm_private *priv = dev->dev_private;
+ struct etnaviv_gpu *gpu;
+ unsigned int i;
+
+ for (i = 0; i < ETNA_MAX_PIPES; i++) {
+ gpu = priv->gpu[i];
+ if (gpu) {
+ seq_printf(m, "Ring Buffer (%s): ",
+ dev_name(gpu->dev));
+ etnaviv_buffer_dump(gpu, m);
+ }
+ }
+ return 0;
+}
+
static int show_locked(struct seq_file *m, void *arg)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -282,6 +320,7 @@ static struct drm_info_list etnaviv_debugfs_list[] = {
{"gem", show_locked, 0, etnaviv_gem_show},
{ "mm", show_locked, 0, etnaviv_mm_show },
{"mmu", show_locked, 0, etnaviv_mmu_show},
+ {"ring", show_locked, 0, etnaviv_ring_show},
};
static int etnaviv_debugfs_init(struct drm_minor *minor)
--
2.5.1
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