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[02/15] dmr/i915: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()

Message ID 20210916211552.33490-3-greenfoo@u92.eu
State New
Headers show
Series drm: cleanup: Use DRM_MODESET_LOCK_ALL_* helpers where possible | expand

Commit Message

Fernando Ramos Sept. 16, 2021, 9:15 p.m. UTC
As requested in Documentation/gpu/todo.rst, replace the boilerplate code
surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()
and DRM_MODESET_LOCK_ALL_END()

Signed-off-by: Fernando Ramos <greenfoo@u92.eu>
---
 drivers/gpu/drm/i915/display/intel_display.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

Comments

Sean Paul Sept. 17, 2021, 3:31 p.m. UTC | #1
On Thu, Sep 16, 2021 at 11:15:39PM +0200, Fernando Ramos wrote:
> As requested in Documentation/gpu/todo.rst, replace the boilerplate code

> surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()

> and DRM_MODESET_LOCK_ALL_END()

> 


With the subject fixed (s/dmr/drm),

Reviewed-by: Sean Paul <sean@poorly.run>


> Signed-off-by: Fernando Ramos <greenfoo@u92.eu>

> ---

>  drivers/gpu/drm/i915/display/intel_display.c | 17 ++++-------------

>  1 file changed, 4 insertions(+), 13 deletions(-)

> 

> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c

> index 134a6acbd8fb..997a16e85c85 100644

> --- a/drivers/gpu/drm/i915/display/intel_display.c

> +++ b/drivers/gpu/drm/i915/display/intel_display.c

> @@ -13476,22 +13476,13 @@ void intel_display_resume(struct drm_device *dev)

>  	if (state)

>  		state->acquire_ctx = &ctx;

>  

> -	drm_modeset_acquire_init(&ctx, 0);

> -

> -	while (1) {

> -		ret = drm_modeset_lock_all_ctx(dev, &ctx);

> -		if (ret != -EDEADLK)

> -			break;

> -

> -		drm_modeset_backoff(&ctx);

> -	}

> +	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

>  

> -	if (!ret)

> -		ret = __intel_display_resume(dev, state, &ctx);

> +	ret = __intel_display_resume(dev, state, &ctx);

>  

>  	intel_enable_ipc(dev_priv);

> -	drm_modeset_drop_locks(&ctx);

> -	drm_modeset_acquire_fini(&ctx);

> +

> +	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

>  

>  	if (ret)

>  		drm_err(&dev_priv->drm,

> -- 

> 2.33.0

> 


-- 
Sean Paul, Software Engineer, Google / Chromium OS
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Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 134a6acbd8fb..997a16e85c85 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13476,22 +13476,13 @@  void intel_display_resume(struct drm_device *dev)
 	if (state)
 		state->acquire_ctx = &ctx;
 
-	drm_modeset_acquire_init(&ctx, 0);
-
-	while (1) {
-		ret = drm_modeset_lock_all_ctx(dev, &ctx);
-		if (ret != -EDEADLK)
-			break;
-
-		drm_modeset_backoff(&ctx);
-	}
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
 
-	if (!ret)
-		ret = __intel_display_resume(dev, state, &ctx);
+	ret = __intel_display_resume(dev, state, &ctx);
 
 	intel_enable_ipc(dev_priv);
-	drm_modeset_drop_locks(&ctx);
-	drm_modeset_acquire_fini(&ctx);
+
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
 
 	if (ret)
 		drm_err(&dev_priv->drm,