linux-kernel - [PATCH 3/7] drm/msm: Add a `preempt_record

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Message-Id: <20240815-preemption-a750-t-v1-3-7bda26c34037@gmail.com>
Date: Thu, 15 Aug 2024 20:26:13 +0200
From: Antonino Maniscalco <antomani103@...il.com>
To: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Antonino Maniscalco <antomani103@...il.com>
Subject: [PATCH 3/7] drm/msm: Add a `preempt_record_size` field

Adds a field to `adreno_info` to store the GPU specific preempt record
size.

Signed-off-by: Antonino Maniscalco <antomani103@...il.com>
---
 drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 3 +++
 drivers/gpu/drm/msm/adreno/adreno_gpu.h   | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
index 68ba9aed5506..4cee54d57646 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
@@ -1190,6 +1190,7 @@ static const struct adreno_info a7xx_gpus[] = {
 			.protect = &a730_protect,
 		},
 		.address_space_size = SZ_16G,
+		.preempt_record_size = 2860 * SZ_1K,
 	}, {
 		.chip_ids = ADRENO_CHIP_IDS(0x43050a01), /* "C510v2" */
 		.family = ADRENO_7XX_GEN2,
@@ -1209,6 +1210,7 @@ static const struct adreno_info a7xx_gpus[] = {
 			.gmu_chipid = 0x7020100,
 		},
 		.address_space_size = SZ_16G,
+		.preempt_record_size = 4192 * SZ_1K,
 	}, {
 		.chip_ids = ADRENO_CHIP_IDS(0x43050c01), /* "C512v2" */
 		.family = ADRENO_7XX_GEN2,
@@ -1245,6 +1247,7 @@ static const struct adreno_info a7xx_gpus[] = {
 			.gmu_chipid = 0x7090100,
 		},
 		.address_space_size = SZ_16G,
+		.preempt_record_size = 3572 * SZ_1K,
 	}
 };
 DECLARE_ADRENO_GPULIST(a7xx);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 1ab523a163a0..6b1888280a83 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -111,6 +111,7 @@ struct adreno_info {
 	 * {SHRT_MAX, 0} sentinal.
 	 */
 	struct adreno_speedbin *speedbins;
+	u64 preempt_record_size;
 };
 
 #define ADRENO_CHIP_IDS(tbl...) (uint32_t[]) { tbl, 0 }

-- 
2.46.0