From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C09A423C4F3; Mon, 13 Oct 2025 15:32:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760369530; cv=none; b=R+UQycuHIbTvWeBNZyMH2FSoTCJFBhgAku0kUB982yhj8qMWPBiY7K2aBra3pZ6xGVd99jaTNlyf3drZHW1KQelwdZi0tVezt1SxjoSHvLEFDufNmjls3sbHZXkkZ4/raWQofrbMIV+7rMqvJm5+n/pzvEajG07DR6mid/FjReI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760369530; c=relaxed/simple; bh=BYH1/wkh6GiEctS72aOT1Oil2COr/L8Xhme6JHuIP+o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IZST3oR5qHTfB+WFJ9H9fJR99mMbX8e4WAyAzkveMn5XzoAsZXcdWlzZzGGRtxi6LhGvlE0L3Abn4oBG/oMBD44/mOI+/v692dRur/OpSNezzsDaxphhCs6ueAUCMMtYWBGOEXK/rexbwkBoijhIMIPhyKy3ICPYtOGUhu1uyv8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=D/83aJEi; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="D/83aJEi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2628C4CEE7; Mon, 13 Oct 2025 15:32:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760369529; bh=BYH1/wkh6GiEctS72aOT1Oil2COr/L8Xhme6JHuIP+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D/83aJEiCVPHOPr5RbMdTXzO3RpO3d6DkmpT5pEfLdM6ZPDz1OEvp9u5hviRZe5B/ 1DwZcUWrQnHgPP23VaFwGkjYN8GJn7UK871x1YQbP1yEOw4iXUuFWriPoOG+C3DltM qcVxuianskPlv+8S8c/fcQGfbYxHWPNJPuF7sffA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sathishkumar S , Leo Liu , Alex Deucher , Sasha Levin Subject: [PATCH 6.17 279/563] drm/amdgpu/vcn: Add regdump helper functions Date: Mon, 13 Oct 2025 16:42:20 +0200 Message-ID: <20251013144421.378646664@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251013144411.274874080@linuxfoundation.org> References: <20251013144411.274874080@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sathishkumar S [ Upstream commit de55cbff5ce93c316b0113535752e43079761f2c ] Add generic helper functions for vcn devcoredump support which can be re-used for all vcn versions. Signed-off-by: Sathishkumar S Acked-by: Leo Liu Signed-off-by: Alex Deucher Stable-dep-of: 9c0442286f84 ("drm/amdgpu: Check vcn state before profile switch") Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 87 +++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 8 +++ 2 files changed, 95 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index f1f67521c29ca..b497a67141384 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -92,6 +92,7 @@ MODULE_FIRMWARE(FIRMWARE_VCN5_0_0); MODULE_FIRMWARE(FIRMWARE_VCN5_0_1); static void amdgpu_vcn_idle_work_handler(struct work_struct *work); +static void amdgpu_vcn_reg_dump_fini(struct amdgpu_device *adev); int amdgpu_vcn_early_init(struct amdgpu_device *adev, int i) { @@ -285,6 +286,10 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev, int i) amdgpu_ucode_release(&adev->vcn.inst[0].fw); adev->vcn.inst[i].fw = NULL; } + + if (adev->vcn.reg_list) + amdgpu_vcn_reg_dump_fini(adev); + mutex_destroy(&adev->vcn.inst[i].vcn_pg_lock); mutex_destroy(&adev->vcn.inst[i].vcn1_jpeg1_workaround); @@ -1527,3 +1532,85 @@ int amdgpu_vcn_ring_reset(struct amdgpu_ring *ring, return amdgpu_vcn_reset_engine(adev, ring->me); } + +int amdgpu_vcn_reg_dump_init(struct amdgpu_device *adev, + const struct amdgpu_hwip_reg_entry *reg, u32 count) +{ + adev->vcn.ip_dump = kcalloc(adev->vcn.num_vcn_inst * count, + sizeof(uint32_t), GFP_KERNEL); + if (!adev->vcn.ip_dump) + return -ENOMEM; + adev->vcn.reg_list = reg; + adev->vcn.reg_count = count; + + return 0; +} + +static void amdgpu_vcn_reg_dump_fini(struct amdgpu_device *adev) +{ + kfree(adev->vcn.ip_dump); + adev->vcn.reg_list = NULL; + adev->vcn.reg_count = 0; +} + +void amdgpu_vcn_dump_ip_state(struct amdgpu_ip_block *ip_block) +{ + struct amdgpu_device *adev = ip_block->adev; + int i, j; + bool is_powered; + u32 inst_off; + + if (!adev->vcn.ip_dump) + return; + + for (i = 0; i < adev->vcn.num_vcn_inst; i++) { + if (adev->vcn.harvest_config & (1 << i)) + continue; + + inst_off = i * adev->vcn.reg_count; + /* mmUVD_POWER_STATUS is always readable and is the first in reg_list */ + adev->vcn.ip_dump[inst_off] = + RREG32(SOC15_REG_ENTRY_OFFSET_INST(adev->vcn.reg_list[0], i)); + is_powered = (adev->vcn.ip_dump[inst_off] & + UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF) != + UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF; + + if (is_powered) + for (j = 1; j < adev->vcn.reg_count; j++) + adev->vcn.ip_dump[inst_off + j] = + RREG32(SOC15_REG_ENTRY_OFFSET_INST(adev->vcn.reg_list[j], i)); + } +} + +void amdgpu_vcn_print_ip_state(struct amdgpu_ip_block *ip_block, struct drm_printer *p) +{ + struct amdgpu_device *adev = ip_block->adev; + int i, j; + bool is_powered; + u32 inst_off; + + if (!adev->vcn.ip_dump) + return; + + drm_printf(p, "num_instances:%d\n", adev->vcn.num_vcn_inst); + for (i = 0; i < adev->vcn.num_vcn_inst; i++) { + if (adev->vcn.harvest_config & (1 << i)) { + drm_printf(p, "\nHarvested Instance:VCN%d Skipping dump\n", i); + continue; + } + + inst_off = i * adev->vcn.reg_count; + is_powered = (adev->vcn.ip_dump[inst_off] & + UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF) != + UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF; + + if (is_powered) { + drm_printf(p, "\nActive Instance:VCN%d\n", i); + for (j = 0; j < adev->vcn.reg_count; j++) + drm_printf(p, "%-50s \t 0x%08x\n", adev->vcn.reg_list[j].reg_name, + adev->vcn.ip_dump[inst_off + j]); + } else { + drm_printf(p, "\nInactive Instance:VCN%d\n", i); + } + } +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h index 0bc0a94d7cf0f..b3fb1d0e43fc9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h @@ -237,6 +237,8 @@ #define AMDGPU_DRM_KEY_INJECT_WORKAROUND_VCNFW_ASD_HANDSHAKING 2 +struct amdgpu_hwip_reg_entry; + enum amdgpu_vcn_caps { AMDGPU_VCN_RRMT_ENABLED, }; @@ -362,6 +364,8 @@ struct amdgpu_vcn { bool workload_profile_active; struct mutex workload_profile_mutex; + u32 reg_count; + const struct amdgpu_hwip_reg_entry *reg_list; }; struct amdgpu_fw_shared_rb_ptrs_struct { @@ -557,4 +561,8 @@ int vcn_set_powergating_state(struct amdgpu_ip_block *ip_block, int amdgpu_vcn_ring_reset(struct amdgpu_ring *ring, unsigned int vmid, struct amdgpu_fence *guilty_fence); +int amdgpu_vcn_reg_dump_init(struct amdgpu_device *adev, + const struct amdgpu_hwip_reg_entry *reg, u32 count); +void amdgpu_vcn_dump_ip_state(struct amdgpu_ip_block *ip_block); +void amdgpu_vcn_print_ip_state(struct amdgpu_ip_block *ip_block, struct drm_printer *p); #endif -- 2.51.0