diff mbox

[01/39] drm/i915: Add total count to context status debugfs output

Message ID 1448278774-31376-2-git-send-email-John.C.Harrison@Intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

John Harrison Nov. 23, 2015, 11:38 a.m. UTC
From: John Harrison <John.C.Harrison@Intel.com>

When there are lots and lots and even more lots of contexts (e.g. when running
with execlists) it is useful to be able to immediately see what the total
context count is.

Change-Id: If9726d4df86567100ecf53867b43f4753f08bf84
For: VIZ-1587
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Joonas Lahtinen Jan. 8, 2016, 9:50 a.m. UTC | #1
On ma, 2015-11-23 at 11:38 +0000, John.C.Harrison@Intel.com wrote:
> From: John Harrison <John.C.Harrison@Intel.com>
> 
> When there are lots and lots and even more lots of contexts (e.g.
> when running
> with execlists) it is useful to be able to immediately see what the
> total
> context count is.
> 
> Change-Id: If9726d4df86567100ecf53867b43f4753f08bf84
> For: VIZ-1587

With below notes;

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

> Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
> b/drivers/gpu/drm/i915/i915_debugfs.c
> index 18dfb56..ecab9b8 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -1953,6 +1953,7 @@ static int i915_context_status(struct seq_file
> *m, void *unused)
>  	struct drm_i915_private *dev_priv = dev->dev_private;
>  	struct intel_engine_cs *ring;
>  	struct intel_context *ctx;
> +	uint32_t count = 0;

Should really be just of type 'int'. Overall the driver code use 'int'
for counting.

>  	int ret, i;
>  
>  	ret = mutex_lock_interruptible(&dev->struct_mutex);
> @@ -1966,6 +1967,7 @@ static int i915_context_status(struct seq_file
> *m, void *unused)
>  
>  		seq_puts(m, "HW context ");
>  		describe_ctx(m, ctx);
> +		count++;
>  		for_each_ring(ring, dev_priv, i) {
>  			if (ring->default_context == ctx)
>  				seq_printf(m, "(default context %s)
> ",
> @@ -1994,6 +1996,8 @@ static int i915_context_status(struct seq_file
> *m, void *unused)
>  		seq_putc(m, '\n');
>  	}
>  
> +	seq_printf(m, "Total: %d contexts\n", count);
> +

If the above variable is not changed, %d is wrong for uint32_t and unsi
gned int, should be %u.

>  	mutex_unlock(&dev->struct_mutex);
>  
>  	return 0;
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 18dfb56..ecab9b8 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1953,6 +1953,7 @@  static int i915_context_status(struct seq_file *m, void *unused)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_engine_cs *ring;
 	struct intel_context *ctx;
+	uint32_t count = 0;
 	int ret, i;
 
 	ret = mutex_lock_interruptible(&dev->struct_mutex);
@@ -1966,6 +1967,7 @@  static int i915_context_status(struct seq_file *m, void *unused)
 
 		seq_puts(m, "HW context ");
 		describe_ctx(m, ctx);
+		count++;
 		for_each_ring(ring, dev_priv, i) {
 			if (ring->default_context == ctx)
 				seq_printf(m, "(default context %s) ",
@@ -1994,6 +1996,8 @@  static int i915_context_status(struct seq_file *m, void *unused)
 		seq_putc(m, '\n');
 	}
 
+	seq_printf(m, "Total: %d contexts\n", count);
+
 	mutex_unlock(&dev->struct_mutex);
 
 	return 0;