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Message-ID: <20230905184533.959171-2-adrian.larumbe@collabora.com>
Date: Tue, 5 Sep 2023 19:45:17 +0100
From: Adrián Larumbe <adrian.larumbe@...labora.com>
To: maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
tzimmermann@...e.de, airlied@...il.com, daniel@...ll.ch,
robdclark@...il.com, quic_abhinavk@...cinc.com,
dmitry.baryshkov@...aro.org, sean@...rly.run,
marijn.suijten@...ainline.org, robh@...nel.org,
steven.price@....com
Cc: adrian.larumbe@...labora.com, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
freedreno@...ts.freedesktop.org, healych@...zon.com,
kernel@...labora.com,
Boris Brezillon <boris.brezillon@...labora.com>
Subject: [PATCH v3 1/8] drm/panfrost: Add cycle count GPU register definitions
These GPU registers will be used when programming the cycle counter, which
we need for providing accurate fdinfo drm-cycles values to user space.
Signed-off-by: Adrián Larumbe <adrian.larumbe@...labora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@...labora.com>
Reviewed-by: Steven Price <steven.price@....com>
---
drivers/gpu/drm/panfrost/panfrost_regs.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/panfrost/panfrost_regs.h b/drivers/gpu/drm/panfrost/panfrost_regs.h
index 919f44ac853d..55ec807550b3 100644
--- a/drivers/gpu/drm/panfrost/panfrost_regs.h
+++ b/drivers/gpu/drm/panfrost/panfrost_regs.h
@@ -46,6 +46,8 @@
#define GPU_CMD_SOFT_RESET 0x01
#define GPU_CMD_PERFCNT_CLEAR 0x03
#define GPU_CMD_PERFCNT_SAMPLE 0x04
+#define GPU_CMD_CYCLE_COUNT_START 0x05
+#define GPU_CMD_CYCLE_COUNT_STOP 0x06
#define GPU_CMD_CLEAN_CACHES 0x07
#define GPU_CMD_CLEAN_INV_CACHES 0x08
#define GPU_STATUS 0x34
@@ -73,6 +75,9 @@
#define GPU_PRFCNT_TILER_EN 0x74
#define GPU_PRFCNT_MMU_L2_EN 0x7c
+#define GPU_CYCLE_COUNT_LO 0x90
+#define GPU_CYCLE_COUNT_HI 0x94
+
#define GPU_THREAD_MAX_THREADS 0x0A0 /* (RO) Maximum number of threads per core */
#define GPU_THREAD_MAX_WORKGROUP_SIZE 0x0A4 /* (RO) Maximum workgroup size */
#define GPU_THREAD_MAX_BARRIER_SIZE 0x0A8 /* (RO) Maximum threads waiting at a barrier */
--
2.42.0
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