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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: DRI Development <dri-devel@lists.freedesktop.org>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>,
	Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	Shayenne Moura <shayenneluzmoura@gmail.com>,
	Daniel Vetter <daniel.vetter@intel.com>
Subject: [PATCH 02/10] drm/vkms: Use spin_lock_irq in process context
Date: Fri,  7 Jun 2019 00:27:43 +0200	[thread overview]
Message-ID: <20190606222751.32567-3-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20190606222751.32567-1-daniel.vetter@ffwll.ch>

The worker is always in process context, no need for the _irqsafe
version. Same for the set_source callback, that's only called from the
debugfs handler in a syscall.

Cc: Shayenne Moura <shayenneluzmoura@gmail.com>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
 drivers/gpu/drm/vkms/vkms_crc.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_crc.c b/drivers/gpu/drm/vkms/vkms_crc.c
index 66603da634fe..883e36fe7b6e 100644
--- a/drivers/gpu/drm/vkms/vkms_crc.c
+++ b/drivers/gpu/drm/vkms/vkms_crc.c
@@ -167,16 +167,15 @@ void vkms_crc_work_handle(struct work_struct *work)
 	u32 crc32 = 0;
 	u64 frame_start, frame_end;
 	bool crc_pending;
-	unsigned long flags;
 
-	spin_lock_irqsave(&out->state_lock, flags);
+	spin_lock_irq(&out->state_lock);
 	frame_start = crtc_state->frame_start;
 	frame_end = crtc_state->frame_end;
 	crc_pending = crtc_state->crc_pending;
 	crtc_state->frame_start = 0;
 	crtc_state->frame_end = 0;
 	crtc_state->crc_pending = false;
-	spin_unlock_irqrestore(&out->state_lock, flags);
+	spin_unlock_irq(&out->state_lock);
 
 	/*
 	 * We raced with the vblank hrtimer and previous work already computed
@@ -246,7 +245,6 @@ int vkms_set_crc_source(struct drm_crtc *crtc, const char *src_name)
 {
 	struct vkms_output *out = drm_crtc_to_vkms_output(crtc);
 	bool enabled = false;
-	unsigned long flags;
 	int ret = 0;
 
 	ret = vkms_crc_parse_source(src_name, &enabled);
@@ -254,9 +252,9 @@ int vkms_set_crc_source(struct drm_crtc *crtc, const char *src_name)
 	/* make sure nothing is scheduled on crtc workq */
 	flush_workqueue(out->crc_workq);
 
-	spin_lock_irqsave(&out->lock, flags);
+	spin_lock_irq(&out->lock);
 	out->crc_enabled = enabled;
-	spin_unlock_irqrestore(&out->lock, flags);
+	spin_unlock_irq(&out->lock);
 
 	return ret;
 }
-- 
2.20.1

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  parent reply	other threads:[~2019-06-06 22:28 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-06 22:27 [PATCH 00/10] drm/vkms: rework crc worker Daniel Vetter
2019-06-06 22:27 ` [PATCH 01/10] drm/vkms: Fix crc worker races Daniel Vetter
2019-06-12 13:33   ` Rodrigo Siqueira
2019-06-12 14:48     ` Daniel Vetter
2019-06-18  2:39       ` Rodrigo Siqueira
2019-06-18  8:49         ` Daniel Vetter
2019-06-06 22:27 ` Daniel Vetter [this message]
2019-06-12 13:34   ` [PATCH 02/10] drm/vkms: Use spin_lock_irq in process context Rodrigo Siqueira
2019-06-12 14:54     ` Daniel Vetter
2019-06-06 22:27 ` [PATCH 03/10] drm/vkms: Rename vkms_output.state_lock to crc_lock Daniel Vetter
2019-06-12 13:38   ` Rodrigo Siqueira
2019-06-13  7:48     ` Daniel Vetter
2019-06-06 22:27 ` [PATCH 04/10] drm/vkms: Move format arrays to vkms_plane.c Daniel Vetter
2019-06-12 13:39   ` Rodrigo Siqueira
2019-06-19  2:12   ` Rodrigo Siqueira
2019-06-06 22:27 ` [PATCH 05/10] drm/vkms: Add our own commit_tail Daniel Vetter
2019-06-06 22:27 ` [PATCH 06/10] drm/vkms: flush crc workers earlier in commit flow Daniel Vetter
2019-06-12 13:42   ` Rodrigo Siqueira
2019-06-13  7:53     ` Daniel Vetter
2019-06-13  7:55       ` Daniel Vetter
2019-06-18  2:31       ` Rodrigo Siqueira
2019-06-06 22:27 ` [PATCH 07/10] drm/vkms: Dont flush crc worker when we change crc status Daniel Vetter
2019-06-19  2:17   ` Rodrigo Siqueira
2019-06-19  7:47     ` Daniel Vetter
2019-06-06 22:27 ` [PATCH 08/10] drm/vkms: No _irqsave within spin_lock_irq needed Daniel Vetter
2019-06-12 13:43   ` Rodrigo Siqueira
2019-06-06 22:27 ` [PATCH 09/10] drm/vkms: totally reworked crc data tracking Daniel Vetter
2019-06-12 13:46   ` Rodrigo Siqueira
2019-06-13  7:59     ` Daniel Vetter
2019-06-06 22:27 ` [PATCH 10/10] drm/vkms: No need for ->pages_lock in crc work anymore Daniel Vetter
2019-06-12 13:47   ` Rodrigo Siqueira
2019-06-12 13:28 ` [PATCH 00/10] drm/vkms: rework crc worker Rodrigo Siqueira
2019-06-12 14:42   ` Daniel Vetter
2019-06-18  2:49     ` Rodrigo Siqueira
2019-06-18  8:56       ` Daniel Vetter
2019-06-18 21:54         ` Rodrigo Siqueira
2019-06-18 22:06           ` Daniel Vetter
2019-06-18 22:07             ` Daniel Vetter
2019-06-18 22:25               ` Rodrigo Siqueira
2019-06-18 22:39                 ` Daniel Vetter
2019-06-26  1:44             ` Rodrigo Siqueira
2019-06-26  7:54               ` Daniel Vetter
2019-06-26 13:46                 ` Rodrigo Siqueira
2019-07-01  3:30                 ` Rodrigo Siqueira

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