2 files changed, 134 insertions, 50 deletions

diff --git a/drivers/video/tegra/host/debug.c b/drivers/video/tegra/host/debug.c
index 8a26f92c79f6..820eac85521d 100644
--- a/drivers/video/tegra/host/debug.c
+++ b/drivers/video/tegra/host/debug.c
@@ -106,13 +106,53 @@ static void show_all(struct nvhost_master *m, struct output *o)
 	nvhost_get_chip_ops()->debug.show_mlocks(m, o);
 	show_syncpts(m, o);
 	nvhost_debug_output(o, "---- channels ----\n");
-	bus_for_each_dev(&(nvhost_bus_get())->nvhost_bus_type, NULL, o, show_channels);
+	bus_for_each_dev(&(nvhost_bus_get())->nvhost_bus_type, NULL, o,
+			show_channels);
 
 	nvhost_module_idle(m->dev);
 }
 
 #ifdef CONFIG_DEBUG_FS
-static int nvhost_debug_show(struct seq_file *s, void *unused)
+static int show_channels_no_fifo(struct device *dev, void *data)
+{
+	struct nvhost_channel *ch;
+	struct nvhost_device *nvdev = to_nvhost_device(dev);
+	struct output *o = data;
+	struct nvhost_master *m;
+
+	if (nvdev == NULL)
+		return 0;
+
+	m = nvhost_get_host(nvdev);
+	ch = nvdev->channel;
+	if (ch) {
+		mutex_lock(&ch->reflock);
+		if (ch->refcount) {
+			mutex_lock(&ch->cdma.lock);
+			nvhost_get_chip_ops()->debug.show_channel_cdma(m,
+					ch, o, nvdev->index);
+			mutex_unlock(&ch->cdma.lock);
+		}
+		mutex_unlock(&ch->reflock);
+	}
+
+	return 0;
+}
+
+static void show_all_no_fifo(struct nvhost_master *m, struct output *o)
+{
+	nvhost_module_busy(m->dev);
+
+	nvhost_get_chip_ops()->debug.show_mlocks(m, o);
+	show_syncpts(m, o);
+	nvhost_debug_output(o, "---- channels ----\n");
+	bus_for_each_dev(&(nvhost_bus_get())->nvhost_bus_type, NULL, o,
+			show_channels_no_fifo);
+
+	nvhost_module_idle(m->dev);
+}
+
+static int nvhost_debug_show_all(struct seq_file *s, void *unused)
 {
 	struct output o = {
 		.fn = write_to_seqfile,
@@ -121,6 +161,27 @@ static int nvhost_debug_show(struct seq_file *s, void *unused)
 	show_all(s->private, &o);
 	return 0;
 }
+static int nvhost_debug_show(struct seq_file *s, void *unused)
+{
+	struct output o = {
+		.fn = write_to_seqfile,
+		.ctx = s
+	};
+	show_all_no_fifo(s->private, &o);
+	return 0;
+}
+
+static int nvhost_debug_open_all(struct inode *inode, struct file *file)
+{
+	return single_open(file, nvhost_debug_show_all, inode->i_private);
+}
+
+static const struct file_operations nvhost_debug_all_fops = {
+	.open		= nvhost_debug_open_all,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
 
 static int nvhost_debug_open(struct inode *inode, struct file *file)
 {
@@ -140,6 +201,8 @@ void nvhost_debug_init(struct nvhost_master *master)
 
 	debugfs_create_file("status", S_IRUGO, de,
 			master, &nvhost_debug_fops);
+	debugfs_create_file("status_all", S_IRUGO, de,
+			master, &nvhost_debug_all_fops);
 
 	debugfs_create_u32("null_kickoff_pid", S_IRUGO|S_IWUSR, de,
 			&nvhost_debug_null_kickoff_pid);
diff --git a/drivers/video/tegra/host/host1x/host1x_debug.c b/drivers/video/tegra/host/host1x/host1x_debug.c
index a5574a0fb60a..7de342298c4d 100644
--- a/drivers/video/tegra/host/host1x/host1x_debug.c
+++ b/drivers/video/tegra/host/host1x/host1x_debug.c
@@ -28,8 +28,8 @@
 #include "host1x_hardware.h"
 #include "nvhost_cdma.h"
 #include "nvhost_channel.h"
-#include "../../nvmap/nvmap.h"
 #include "host1x_cdma.h"
+#include "nvhost_job.h"
 
 #define NVHOST_DEBUG_MAX_PAGE_OFFSET 102400
 
@@ -160,6 +160,34 @@ static void show_channel_word(struct output *o, int *state, int *count,
 	}
 }
 
+static void do_show_channel_gather(struct output *o,
+		phys_addr_t phys_addr,
+		u32 words, struct nvhost_cdma *cdma,
+		phys_addr_t pin_addr, u32 *map_addr)
+{
+	/* Map dmaget cursor to corresponding nvmap_handle */
+	u32 offset;
+	int state, count, i;
+
+	offset = phys_addr - pin_addr;
+	/*
+	 * Sometimes we're given different hardware address to the same
+	 * page - in these cases the offset will get an invalid number and
+	 * we just have to bail out.
+	 */
+	if (offset > NVHOST_DEBUG_MAX_PAGE_OFFSET) {
+		nvhost_debug_output(o, "[address mismatch]\n");
+	} else {
+		/* GATHER buffer starts always with commands */
+		state = NVHOST_DBG_STATE_CMD;
+		for (i = 0; i < words; i++)
+			show_channel_word(o, &state, &count,
+					phys_addr + i * 4,
+					*(map_addr + offset/4 + i),
+					cdma);
+	}
+}
+
 static void show_channel_gather(struct output *o, u32 addr,
 		phys_addr_t phys_addr,
 		u32 words, struct nvhost_cdma *cdma)
@@ -171,10 +199,8 @@ static void show_channel_gather(struct output *o, u32 addr,
 	struct nvmap_client_handle *nvmap = &pb->nvmap[cur/8];
 	u32 *map_addr, offset;
 	phys_addr_t pin_addr;
-	int state, count, i;
 
-	if (!nvmap->handle || !nvmap->client
-			|| atomic_read(&nvmap->handle->handle->ref) < 1) {
+	if (!nvmap || !nvmap->handle || !nvmap->client) {
 		nvhost_debug_output(o, "[already deallocated]\n");
 		return;
 	}
@@ -194,51 +220,13 @@ static void show_channel_gather(struct output *o, u32 addr,
 	}
 
 	offset = phys_addr - pin_addr;
-	/*
-	 * Sometimes we're given different hardware address to the same
-	 * page - in these cases the offset will get an invalid number and
-	 * we just have to bail out.
-	 */
-	if (offset > NVHOST_DEBUG_MAX_PAGE_OFFSET) {
-		nvhost_debug_output(o, "[address mismatch]\n");
-	} else {
-		/* GATHER buffer starts always with commands */
-		state = NVHOST_DBG_STATE_CMD;
-		for (i = 0; i < words; i++)
-			show_channel_word(o, &state, &count,
-					phys_addr + i * 4,
-					*(map_addr + offset/4 + i),
-					cdma);
-	}
+	do_show_channel_gather(o, phys_addr, words, cdma,
+			pin_addr, map_addr);
 	nvmap_unpin(nvmap->client, nvmap->handle);
 	nvmap_munmap(nvmap->handle, map_addr);
 #endif
 }
 
-static void show_channel_pair(struct output *o, u32 addr,
-		u32 w0, u32 w1, struct nvhost_cdma *cdma)
-{
-	int state = NVHOST_DBG_STATE_CMD;
-	int count;
-
-	show_channel_word(o, &state, &count, addr, w0, cdma);
-	show_channel_word(o, &state, &count, addr+4, w1, cdma);
-}
-
-/**
- * Retrieve the op pair at a slot offset from a DMA address
- */
-static void cdma_peek(struct nvhost_cdma *cdma,
-		      u32 dmaget, int slot, u32 *out)
-{
-	u32 offset = dmaget - cdma->push_buffer.phys;
-	u32 *p = cdma->push_buffer.mapped;
-
-	offset = ((offset + slot * 8) & (PUSH_BUFFER_SIZE - 1)) >> 2;
-	out[0] = p[offset];
-	out[1] = p[offset + 1];
-}
-
 u32 previous_oppair(struct nvhost_cdma *cdma, u32 cur)
 {
 	u32 pb = cdma->push_buffer.phys;
@@ -248,6 +236,42 @@ u32 previous_oppair(struct nvhost_cdma *cdma, u32 cur)
 	return prev;
 }
 
+void show_channel_gathers(struct output *o, struct nvhost_cdma *cdma)
+{
+	struct nvhost_job *job;
+
+	list_for_each_entry(job, &cdma->sync_queue, list) {
+		int i;
+		nvhost_debug_output(o, "\n%p: JOB, syncpt_id=%d, syncpt_val=%d,"
+				" first_get=%08x, timeout=%d, ctx=%p,"
+				" num_slots=%d, num_handles=%d\n",
+				job,
+				job->syncpt_id,
+				job->syncpt_end,
+				job->first_get,
+				job->timeout,
+				job->hwctx,
+				job->num_slots,
+				job->num_unpins);
+
+		for (i = 0; i < job->num_gathers; i++) {
+			struct nvhost_job_gather *g = &job->gathers[i];
+			u32 *mapped = nvmap_mmap(g->ref);
+			if (!mapped) {
+				nvhost_debug_output(o, "[could not mmap]\n");
+				continue;
+			}
+
+			nvhost_debug_output(o, "    GATHER at %08x, %d words\n",
+				g->mem, g->words);
+
+			do_show_channel_gather(o, g->mem + g->offset,
+					g->words, cdma, g->mem, mapped);
+			nvmap_munmap(g->ref, mapped);
+		}
+	}
+}
+
 static void t20_debug_show_channel_cdma(struct nvhost_master *m,
 	struct nvhost_channel *ch, struct output *o, int chid)
 {
@@ -256,7 +280,6 @@ static void t20_debug_show_channel_cdma(struct nvhost_master *m,
 	u32 dmaput, dmaget, dmactrl;
 	u32 cbstat, cbread;
 	u32 val, base, baseval;
-	u32 pbw[2];
 
 	dmaput = readl(channel->aperture + HOST1X_CHANNEL_DMAPUT);
 	dmaget = readl(channel->aperture + HOST1X_CHANNEL_DMAGET);
@@ -305,9 +328,7 @@ static void t20_debug_show_channel_cdma(struct nvhost_master *m,
 		dmaput, dmaget, dmactrl);
 	nvhost_debug_output(o, "CBREAD %08x, CBSTAT %08x\n", cbread, cbstat);
 
-	cdma_peek(cdma, dmaget, -1, pbw);
-	show_channel_pair(o, previous_oppair(cdma, dmaget),
-		pbw[0], pbw[1], &channel->cdma);
+	show_channel_gathers(o, cdma);
 	nvhost_debug_output(o, "\n");
 }