linux-kernel - [PATCH] drm/msm/a6xx: Print SQE fw version

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Message-ID: <20240604154846.500357-1-robdclark@gmail.com>
Date: Tue,  4 Jun 2024 08:48:45 -0700
From: Rob Clark <robdclark@...il.com>
To: dri-devel@...ts.freedesktop.org
Cc: linux-arm-msm@...r.kernel.org,
	freedreno@...ts.freedesktop.org,
	Rob Clark <robdclark@...omium.org>,
	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>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] drm/msm/a6xx: Print SQE fw version

From: Rob Clark <robdclark@...omium.org>

Add the SQE fw version to dmesg and devcoredump.

Signed-off-by: Rob Clark <robdclark@...omium.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c       | 32 +++++++++++++++++++--
 drivers/gpu/drm/msm/adreno/a6xx_gpu.h       |  1 +
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c |  2 ++
 3 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 56bfb228808d..5a2a005003c8 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -665,6 +665,32 @@ static int a7xx_cp_init(struct msm_gpu *gpu)
 	return a6xx_idle(gpu, ring) ? 0 : -EINVAL;
 }
 
+static uint32_t get_ucode_version(const uint32_t *data)
+{
+	uint32_t version;
+
+	/* NOTE: compared to kgsl, we've already stripped off the first dword: */
+	version = data[0];
+
+	if ((version & 0xf) != 0xa)
+		return version;
+
+	version &= ~0xfff;
+	return  version | ((data[2] & 0xfff000) >> 12);
+}
+
+uint32_t a6xx_get_sqe_version(struct msm_gpu *gpu)
+{
+	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+	struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
+	uint32_t *buf = msm_gem_get_vaddr(a6xx_gpu->sqe_bo);
+	uint32_t version = get_ucode_version(buf);
+
+	msm_gem_put_vaddr(a6xx_gpu->sqe_bo);
+
+	return version;
+}
+
 /*
  * Check that the microcode version is new enough to include several key
  * security fixes. Return true if the ucode is safe.
@@ -681,6 +707,8 @@ static bool a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu,
 	if (IS_ERR(buf))
 		return false;
 
+	DRM_DEV_INFO(&gpu->pdev->dev, "Have SQE version %03x\n", get_ucode_version(buf));
+
 	/* A7xx is safe! */
 	if (adreno_is_a7xx(adreno_gpu) || adreno_is_a702(adreno_gpu))
 		return true;
@@ -714,7 +742,7 @@ static bool a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu,
 		}
 
 		DRM_DEV_ERROR(&gpu->pdev->dev,
-			"a630 SQE ucode is too old. Have version %x need at least %x\n",
+			"a630 SQE ucode is too old. Have version %03x need at least %03x\n",
 			buf[0] & 0xfff, 0x190);
 	} else if (!strcmp(sqe_name, "a650_sqe.fw")) {
 		if ((buf[0] & 0xfff) >= 0x095) {
@@ -723,7 +751,7 @@ static bool a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu,
 		}
 
 		DRM_DEV_ERROR(&gpu->pdev->dev,
-			"a650 SQE ucode is too old. Have version %x need at least %x\n",
+			"a650 SQE ucode is too old. Have version %03x need at least %03x\n",
 			buf[0] & 0xfff, 0x095);
 	} else if (!strcmp(sqe_name, "a660_sqe.fw")) {
 		ret = true;
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
index 1c3cc6df70fe..c206dab8bc08 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
@@ -109,6 +109,7 @@ void a6xx_gmu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp,
 		       bool suspended);
 unsigned long a6xx_gmu_get_freq(struct msm_gpu *gpu);
 
+uint32_t a6xx_get_sqe_version(struct msm_gpu *gpu);
 void a6xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
 		struct drm_printer *p);
 
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
index 0a7717a4fc2f..1acfe39eb8e0 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
@@ -1957,6 +1957,8 @@ void a6xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
 
 	adreno_show(gpu, state, p);
 
+	drm_printf(p, "sqe-version: 0x%08x\n", a6xx_get_sqe_version(gpu));
+
 	drm_puts(p, "gmu-log:\n");
 	if (a6xx_state->gmu_log) {
 		struct msm_gpu_state_bo *gmu_log = a6xx_state->gmu_log;
-- 
2.45.1