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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: amd-gfx@lists.freedesktop.org
Cc: "David Airlie" <airlied@linux.ie>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	dri-devel@lists.freedesktop.org,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Christian König" <christian.koenig@amd.com>
Subject: [PATCH 2/3] drm/amdgpu: Remove in_interrupt() usage in gfx_v9_0_kiq_read_clock()
Date: Tue,  9 Feb 2021 13:44:38 +0100	[thread overview]
Message-ID: <20210209124439.408140-3-bigeasy@linutronix.de> (raw)
In-Reply-To: <20210209124439.408140-1-bigeasy@linutronix.de>

gfx_v9_0_get_gpu_clock_counter() acquires a mutex_t lock and is the only
caller of gfx_v9_0_kiq_read_clock().
If it safe to acquire a mutex_t then gfx_v9_0_get_gpu_clock_counter() is
always invoked from preemptible context.

Remove in_interrupt() because it superfluous as it will always return
false.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index ca7e7264926e6..72c319b860a33 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4105,7 +4105,7 @@ static uint64_t gfx_v9_0_kiq_read_clock(struct amdgpu_device *adev)
 	 *
 	 * also don't wait anymore for IRQ context
 	 * */
-	if (r < 1 && (amdgpu_in_reset(adev) || in_interrupt()))
+	if (r < 1 && (amdgpu_in_reset(adev)))
 		goto failed_kiq_read;
 
 	might_sleep();
-- 
2.30.0

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: amd-gfx@lists.freedesktop.org
Cc: "David Airlie" <airlied@linux.ie>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	dri-devel@lists.freedesktop.org,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Christian König" <christian.koenig@amd.com>
Subject: [PATCH 2/3] drm/amdgpu: Remove in_interrupt() usage in gfx_v9_0_kiq_read_clock()
Date: Tue,  9 Feb 2021 13:44:38 +0100	[thread overview]
Message-ID: <20210209124439.408140-3-bigeasy@linutronix.de> (raw)
In-Reply-To: <20210209124439.408140-1-bigeasy@linutronix.de>

gfx_v9_0_get_gpu_clock_counter() acquires a mutex_t lock and is the only
caller of gfx_v9_0_kiq_read_clock().
If it safe to acquire a mutex_t then gfx_v9_0_get_gpu_clock_counter() is
always invoked from preemptible context.

Remove in_interrupt() because it superfluous as it will always return
false.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index ca7e7264926e6..72c319b860a33 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4105,7 +4105,7 @@ static uint64_t gfx_v9_0_kiq_read_clock(struct amdgpu_device *adev)
 	 *
 	 * also don't wait anymore for IRQ context
 	 * */
-	if (r < 1 && (amdgpu_in_reset(adev) || in_interrupt()))
+	if (r < 1 && (amdgpu_in_reset(adev)))
 		goto failed_kiq_read;
 
 	might_sleep();
-- 
2.30.0

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

  parent reply	other threads:[~2021-02-09 12:44 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-09 12:44 [PATCH v2 0/3] drm/amdgpu: Remove in_interrupt() usage Sebastian Andrzej Siewior
2021-02-09 12:44 ` Sebastian Andrzej Siewior
2021-02-09 12:44 ` [PATCH 1/3] drm/amdgpu: Replace in_interrupt() usage in gmc_v*_process_interrupt() Sebastian Andrzej Siewior
2021-02-09 12:44   ` Sebastian Andrzej Siewior
2021-02-09 12:44 ` Sebastian Andrzej Siewior [this message]
2021-02-09 12:44   ` [PATCH 2/3] drm/amdgpu: Remove in_interrupt() usage in gfx_v9_0_kiq_read_clock() Sebastian Andrzej Siewior
2021-02-09 12:44 ` [PATCH 3/3] drm/amdgpu: Replace in_task() in gfx_v8_0_parse_sq_irq() Sebastian Andrzej Siewior
2021-02-09 12:44   ` Sebastian Andrzej Siewior
2021-02-09 12:50 ` [PATCH v2 0/3] drm/amdgpu: Remove in_interrupt() usage Christian König
2021-02-09 12:50   ` Christian König
2021-02-09 16:53   ` Sebastian Andrzej Siewior
2021-02-09 16:53     ` Sebastian Andrzej Siewior
2021-02-09 17:43     ` Christian König
2021-02-09 17:43       ` Christian König
2021-03-10 17:47       ` Sebastian Andrzej Siewior
2021-03-10 17:47         ` Sebastian Andrzej Siewior
2021-03-11 10:42         ` Christian König
2021-03-11 10:42           ` Christian König
2021-03-11 15:45   ` Alex Deucher
2021-03-11 15:45     ` Alex Deucher

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