From: "Adrián Larumbe" <adrian.larumbe@collabora.com>
To: Boris Brezillon <boris.brezillon@collabora.com>,
Rob Herring <robh@kernel.org>,
Steven Price <steven.price@arm.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>,
Simona Vetter <simona@ffwll.ch>,
Faith Ekstrand <faith.ekstrand@collabora.com>,
"Marty E. Plummer" <hanetzer@startmail.com>,
Tomeu Vizoso <tomeu@tomeuvizoso.net>,
Eric Anholt <eric@anholt.net>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
Robin Murphy <robin.murphy@arm.com>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
"Collabora Kernel Team" <kernel@collabora.com>,
"Adrián Larumbe" <adrian.larumbe@collabora.com>,
"Neil Armstrong" <neil.armstrong@linaro.org>
Subject: [PATCH v4 10/13] drm/panfrost: Move perfcnt GPU disable sequence into a helper
Date: Wed, 29 Jul 2026 03:54:22 +0100 [thread overview]
Message-ID: <20260729-claude-fixes-v4-10-01968f2ec77a@collabora.com> (raw)
In-Reply-To: <20260729-claude-fixes-v4-0-01968f2ec77a@collabora.com>
Just for the sake of avoiding repetition.
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
---
drivers/gpu/drm/panfrost/panfrost_perfcnt.c | 31 ++++++++++++-----------------
1 file changed, 13 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
index 7020c0192e18..ad1156678e91 100644
--- a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
+++ b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
@@ -35,6 +35,16 @@ struct panfrost_perfcnt {
struct completion dump_comp;
};
+static void panfrost_perfcnt_gpu_disable(struct panfrost_device *pfdev)
+{
+ gpu_write(pfdev, GPU_PERFCNT_CFG,
+ GPU_PERFCNT_CFG_MODE(GPU_PERFCNT_CFG_MODE_OFF));
+ gpu_write(pfdev, GPU_PRFCNT_JM_EN, 0x0);
+ gpu_write(pfdev, GPU_PRFCNT_SHADER_EN, 0x0);
+ gpu_write(pfdev, GPU_PRFCNT_MMU_L2_EN, 0x0);
+ gpu_write(pfdev, GPU_PRFCNT_TILER_EN, 0);
+}
+
void panfrost_perfcnt_clean_cache_done(struct panfrost_device *pfdev)
{
complete(&pfdev->perfcnt->dump_comp);
@@ -193,12 +203,7 @@ static int panfrost_perfcnt_disable_locked(struct panfrost_device *pfdev,
if (user != perfcnt->user)
return -EINVAL;
- gpu_write(pfdev, GPU_PRFCNT_JM_EN, 0x0);
- gpu_write(pfdev, GPU_PRFCNT_SHADER_EN, 0x0);
- gpu_write(pfdev, GPU_PRFCNT_MMU_L2_EN, 0x0);
- gpu_write(pfdev, GPU_PRFCNT_TILER_EN, 0);
- gpu_write(pfdev, GPU_PERFCNT_CFG,
- GPU_PERFCNT_CFG_MODE(GPU_PERFCNT_CFG_MODE_OFF));
+ panfrost_perfcnt_gpu_disable(pfdev);
perfcnt->user = NULL;
drm_gem_vunmap(&perfcnt->mapping->obj->base.base, &map);
@@ -327,12 +332,7 @@ int panfrost_perfcnt_init(struct panfrost_device *pfdev)
perfcnt->bosize = size;
/* Start with everything disabled. */
- gpu_write(pfdev, GPU_PERFCNT_CFG,
- GPU_PERFCNT_CFG_MODE(GPU_PERFCNT_CFG_MODE_OFF));
- gpu_write(pfdev, GPU_PRFCNT_JM_EN, 0);
- gpu_write(pfdev, GPU_PRFCNT_SHADER_EN, 0);
- gpu_write(pfdev, GPU_PRFCNT_MMU_L2_EN, 0);
- gpu_write(pfdev, GPU_PRFCNT_TILER_EN, 0);
+ panfrost_perfcnt_gpu_disable(pfdev);
init_completion(&perfcnt->dump_comp);
mutex_init(&perfcnt->lock);
@@ -344,10 +344,5 @@ int panfrost_perfcnt_init(struct panfrost_device *pfdev)
void panfrost_perfcnt_fini(struct panfrost_device *pfdev)
{
/* Disable everything before leaving. */
- gpu_write(pfdev, GPU_PERFCNT_CFG,
- GPU_PERFCNT_CFG_MODE(GPU_PERFCNT_CFG_MODE_OFF));
- gpu_write(pfdev, GPU_PRFCNT_JM_EN, 0);
- gpu_write(pfdev, GPU_PRFCNT_SHADER_EN, 0);
- gpu_write(pfdev, GPU_PRFCNT_MMU_L2_EN, 0);
- gpu_write(pfdev, GPU_PRFCNT_TILER_EN, 0);
+ panfrost_perfcnt_gpu_disable(pfdev);
}
--
2.55.0
next prev parent reply other threads:[~2026-07-29 2:55 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-29 2:54 [PATCH v4 00/13] RPM, perfcnt and other minor fixes for Panfrost Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 01/13] drm/panfrost: Check another bo field for cache option query Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 02/13] drm/panfrost: Prevent division by 0 Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 03/13] drm/panfrost: Remove unnecessary header file include Adrián Larumbe
2026-07-30 10:39 ` Steven Price
2026-07-29 2:54 ` [PATCH v4 04/13] drm/panfrost: Move shrinker initialization and unplug one level down Adrián Larumbe
2026-07-30 10:39 ` Steven Price
2026-08-12 1:19 ` Adrián Larumbe
2026-08-19 10:37 ` Steven Price
2026-08-19 17:01 ` Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 05/13] drm/panfrost: Move all device power up and down into RPM callbacks Adrián Larumbe
2026-07-29 8:37 ` Philipp Zabel
2026-08-12 1:15 ` Adrián Larumbe
2026-07-30 10:40 ` Steven Price
2026-08-12 1:28 ` Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 06/13] drm/panfrost: Explicitly enable MMU interrupts at device init Adrián Larumbe
2026-07-30 10:57 ` Steven Price
2026-07-29 2:54 ` [PATCH v4 07/13] drm/panfrost: Sync with IRQ before MMU disable and reset Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 08/13] drm/panfrost: Rewire reset sequence to avoid concurrent attempts Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 09/13] drm/panfrost: Add debugfs knob for manually triggering a GPU reset Adrián Larumbe
2026-07-29 2:54 ` Adrián Larumbe [this message]
2026-07-29 2:54 ` [PATCH v4 11/13] drm/panfrost: Introduce a reset lock Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 12/13] drm/panfrost: Fix races between perfcnt and reset sequence Adrián Larumbe
2026-07-30 12:49 ` Steven Price
2026-08-12 1:35 ` Adrián Larumbe
2026-07-29 2:54 ` [PATCH v4 13/13] drm/panfrost: Bump driver minor to reflect new DUMP IOCTL req field Adrián Larumbe
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