From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
To: Boris Brezillon <boris.brezillon@collabora.com>,
Steven Price <steven.price@arm.com>,
Liviu Dudau <liviu.dudau@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>, Chia-I Wu <olvaffe@gmail.com>,
Karunika Choo <karunika.choo@arm.com>
Cc: kernel@collabora.com, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Subject: [PATCH v2 2/4] drm/panthor: Add SHADER_PWRFEATURES register definition
Date: Wed, 10 Dec 2025 15:30:38 +0100 [thread overview]
Message-ID: <20251210-panthor-tracepoints-v2-2-ace2e29bad0f@collabora.com> (raw)
In-Reply-To: <20251210-panthor-tracepoints-v2-0-ace2e29bad0f@collabora.com>
Available starting with Mali v12, the SHADER_PWRFEATURES register is a
32-bit register that contains a single bit so far. This bit flag
indicates whether the RT cores should be powered up or not.
The name "SHADER_PWRFEATURES" (as opposed to "SHADER_POWER_FEATURES") is
taken directly from official hardware documentation.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
---
drivers/gpu/drm/panthor/panthor_regs.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/panthor/panthor_regs.h b/drivers/gpu/drm/panthor/panthor_regs.h
index 08bf06c452d6..4c79cec8dc21 100644
--- a/drivers/gpu/drm/panthor/panthor_regs.h
+++ b/drivers/gpu/drm/panthor/panthor_regs.h
@@ -96,6 +96,8 @@
#define L2_READY 0x160
#define SHADER_PWRON 0x180
+#define SHADER_PWRFEATURES 0x188
+#define SHADER_PWRFEATURES_RT BIT(0)
#define TILER_PWRON 0x190
#define L2_PWRON 0x1A0
--
2.52.0
next prev parent reply other threads:[~2025-12-10 14:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-10 14:30 [PATCH v2 0/4] Add a few tracepoints to panthor Nicolas Frattaroli
2025-12-10 14:30 ` [PATCH v2 1/4] drm/panthor: Add panthor_*_irq_mask_set helper Nicolas Frattaroli
2025-12-10 15:55 ` Steven Price
2025-12-10 14:30 ` Nicolas Frattaroli [this message]
2025-12-10 14:30 ` [PATCH v2 3/4] drm/panthor: Add tracepoint for hardware utilisation changes Nicolas Frattaroli
2025-12-10 15:57 ` Steven Price
2025-12-10 16:27 ` Nicolas Frattaroli
2025-12-10 16:44 ` Steven Price
2025-12-10 14:30 ` [PATCH v2 4/4] drm/panthor: Add gpu_job_irq tracepoint Nicolas Frattaroli
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