From nobody Sat Feb 7 15:12:30 2026 Received: from mx.treblig.org (mx.treblig.org [46.235.229.95]) (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 B60E21DFE8 for ; Wed, 14 May 2025 01:16:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.229.95 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747185385; cv=none; b=Mj9QfT/WQ00oY2CGICO1snHd6IgI5DUtzwclMIqW3AXLrBu+TofOMW95APgzbkzfzSTlYw/SwuqWtAtPVezaZNwiBcQfgc0FmMtF2/KsdfEAgEeDdgzwnOdMBlBdrYS8DxASdso8IkfFhAyv+YhNRjlbIBu6Id2/d473oo0Lb+k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747185385; c=relaxed/simple; bh=2iyMcmTUCksrl8tcWLl+IWP5N2afJcL8MbqS/UWeXQc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=MB80I6+gKp2JRvKoXl6GA+EnBGtbK/+YDtd2cr/9Yd+qWWPk12a/Y1B0XY2I8oBXnOX+pjhwEecifaDLLOd5nxMMW13qrnXrvshMeHziyeIwefIMrCx6ikMNhCu0zAjCCQeycJikN/rnpdtIWSQinWtOhfP8xcEsCHcKUYY2W3w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org; spf=pass smtp.mailfrom=treblig.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b=WgGedhVm; arc=none smtp.client-ip=46.235.229.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=treblig.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b="WgGedhVm" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=treblig.org ; s=bytemarkmx; h=MIME-Version:Message-ID:Date:Subject:From:Content-Type:From :Subject; bh=1hs0q+mYysLcaiUGDRGU9TTWH9u5sOR249xe+14mUYE=; b=WgGedhVmEtnihbug SFvkbuRhV8goYYF6lKHH2iKLLNc8rG4SVCmXVxAWsML0+B9VAbNCQ+ToGlPa+bFCPDv5gLjq65LTL wdEjOe6Ih+peKUx/B3FBq5j1yYptpGsrpGL3Fccnlq+FhVTpcj+K+pHpt1g7r+qphZQ3Bjz9c7cd2 lxCpD8+tFTksaAJFpsW51xhj0jAaGraa9BYTtT/5xVItG+6TXZC9Tu7vVz+d5tosp6h83Fu9NVfhm 7Y3FxO6XaXXZu929fpm1eHeKo2l7q5TbbL0wFgM5cGU143FyYKYWVODs95f1H4ZaYb6RY1TpeSYld aAPQZz4AiVKysSYc4w==; Received: from localhost ([127.0.0.1] helo=dalek.home.treblig.org) by mx.treblig.org with esmtp (Exim 4.96) (envelope-from ) id 1uF0jD-003Oxd-2I; Wed, 14 May 2025 01:16:11 +0000 From: linux@treblig.org To: alexander.deucher@amd.com, christophe.jaillet@wanadoo.fr, christian.koenig@amd.com Cc: airlied@gmail.com, simona@ffwll.ch, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, "Dr. David Alan Gilbert" Subject: [PATCH] drm/radeon/cik: Clean up doorbells Date: Wed, 14 May 2025 02:16:10 +0100 Message-ID: <20250514011610.136607-1-linux@treblig.org> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Dr. David Alan Gilbert" Free doorbells in the error paths of cik_init and in cik_fini. Build tested only. Suggested-by: Christophe JAILLET Signed-off-by: Dr. David Alan Gilbert --- RFC->v1 Renamed ringCP[12]->ring_cp[12] Cleaned up doorbells in cik_startup failure case drivers/gpu/drm/radeon/cik.c | 42 +++++++++++++++++++++++++----------- 1 file changed, 30 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 11a492f21157..51a3e0fc2f56 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -8548,7 +8548,7 @@ int cik_suspend(struct radeon_device *rdev) */ int cik_init(struct radeon_device *rdev) { - struct radeon_ring *ring; + struct radeon_ring *ring, *ring_cp1, *ring_cp2; int r; =20 /* Read BIOS */ @@ -8623,19 +8623,22 @@ int cik_init(struct radeon_device *rdev) ring->ring_obj =3D NULL; r600_ring_init(rdev, ring, 1024 * 1024); =20 - ring =3D &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]; - ring->ring_obj =3D NULL; - r600_ring_init(rdev, ring, 1024 * 1024); - r =3D radeon_doorbell_get(rdev, &ring->doorbell_index); + ring_cp1 =3D &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]; + ring_cp2 =3D &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]; + ring_cp1->ring_obj =3D NULL; + ring_cp2->ring_obj =3D NULL; + ring_cp1->doorbell_index =3D RADEON_MAX_DOORBELLS; + ring_cp2->doorbell_index =3D RADEON_MAX_DOORBELLS; + + r600_ring_init(rdev, ring_cp1, 1024 * 1024); + r =3D radeon_doorbell_get(rdev, &ring_cp1->doorbell_index); if (r) return r; =20 - ring =3D &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]; - ring->ring_obj =3D NULL; - r600_ring_init(rdev, ring, 1024 * 1024); - r =3D radeon_doorbell_get(rdev, &ring->doorbell_index); + r600_ring_init(rdev, ring_cp2, 1024 * 1024); + r =3D radeon_doorbell_get(rdev, &ring_cp2->doorbell_index); if (r) - return r; + goto out; =20 ring =3D &rdev->ring[R600_RING_TYPE_DMA_INDEX]; ring->ring_obj =3D NULL; @@ -8653,12 +8656,16 @@ int cik_init(struct radeon_device *rdev) =20 r =3D r600_pcie_gart_init(rdev); if (r) - return r; + goto out; =20 rdev->accel_working =3D true; r =3D cik_startup(rdev); if (r) { dev_err(rdev->dev, "disabling GPU acceleration\n"); + radeon_doorbell_free(rdev, ring_cp1->doorbell_index); + radeon_doorbell_free(rdev, ring_cp2->doorbell_index); + ring_cp1->doorbell_index =3D RADEON_MAX_DOORBELLS; + ring_cp2->doorbell_index =3D RADEON_MAX_DOORBELLS; cik_cp_fini(rdev); cik_sdma_fini(rdev); cik_irq_fini(rdev); @@ -8678,10 +8685,16 @@ int cik_init(struct radeon_device *rdev) */ if (!rdev->mc_fw && !(rdev->flags & RADEON_IS_IGP)) { DRM_ERROR("radeon: MC ucode required for NI+.\n"); - return -EINVAL; + r =3D -EINVAL; + goto out; } =20 return 0; + +out: + radeon_doorbell_free(rdev, ring_cp1->doorbell_index); + radeon_doorbell_free(rdev, ring_cp2->doorbell_index); + return r; } =20 /** @@ -8695,6 +8708,7 @@ int cik_init(struct radeon_device *rdev) */ void cik_fini(struct radeon_device *rdev) { + struct radeon_ring *ring; radeon_pm_fini(rdev); cik_cp_fini(rdev); cik_sdma_fini(rdev); @@ -8708,6 +8722,10 @@ void cik_fini(struct radeon_device *rdev) radeon_ib_pool_fini(rdev); radeon_irq_kms_fini(rdev); uvd_v1_0_fini(rdev); + ring =3D &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]; + radeon_doorbell_free(rdev, ring->doorbell_index); + ring =3D &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]; + radeon_doorbell_free(rdev, ring->doorbell_index); radeon_uvd_fini(rdev); radeon_vce_fini(rdev); cik_pcie_gart_fini(rdev); --=20 2.49.0