From nobody Mon Feb 9 09:32:33 2026 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (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 9E2061DE899 for ; Mon, 10 Mar 2025 20:00:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741636827; cv=pass; b=KHxYFNSXwNkkXEYQCUInXOBbCrseejPjdlRK1m7UxVE0GzkC+ls4zJWIQUcWHlDUKluL6wkvMsYRxKeWnsnvDlXtEreuI4QbXsLmVT9LFoMoFVHfnzqy+dw7Rv2clzO+TG38zczVNw84OcZ58oWg28+5jkkWFG0TCf1otEI3K/M= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741636827; c=relaxed/simple; bh=Y6FGRDriAY0EJ5RtU5LWQBBW6zj3xIbKdVhhyiDcgxA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Jqy602hTNTn5kWa365nD1NJem8dn23KFcPpvf2ys/6pvgiK8mSZrOyElT3IYKzHD/2ORw4RFEGA81l4LZ5fbJoz47mMvqnysXdz+fKX+Ag3675nHyC3W4wUYv3n6LriaE0QaOM8jJZsX47gQv4mAnXEesH2pMXz5OTS5KymQc0k= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=ariel.dalessandro@collabora.com header.b=TKCbmJJX; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=ariel.dalessandro@collabora.com header.b="TKCbmJJX" ARC-Seal: i=1; a=rsa-sha256; t=1741636806; cv=none; d=zohomail.com; s=zohoarc; b=Didrex8uRpE34xQet91uiVU/940LLu6uZ2qqwKaBvg5Zvph5e3cSv049gp2z91mIZBRhtXpqjXT5tmEgFIM9aIT09uy8CQBZF/pgsZyvdBEKSN7zKv/Gfi5STM7NC+zUswVIrKnrbze26Km70DcHTxfDJalOlJwcrWIi4954MA8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1741636806; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=2zhv36KL2NS19H8dU1GGarEClA3dye5rhXTkWyrsrIE=; b=RKfva+Ef4FJOBrt35N/BIFcpVtV0gOcvA1ZHdlSzrAwmE9cbJm4qoDqyR+bPV3YqxKbPGP+9mYVFp7WOtC/hG5aTwqLdOjxk/FdhiJrRHkbjVlFKc+jCERjwrFAJgsnLFhNGZPouAeO9+AraCStMEa/rFZzStzHjt90mYNOchnI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=ariel.dalessandro@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1741636805; s=zohomail; d=collabora.com; i=ariel.dalessandro@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=2zhv36KL2NS19H8dU1GGarEClA3dye5rhXTkWyrsrIE=; b=TKCbmJJXGqx2hwYssKFXHjMcEtoS6TrLM95ti+VBMg/NmmodRObFBkuqF5G7esS+ 4RoCoAfqTYjF2C3gpRhkDF2sWihCIrHky7EDO9erY+sopQrh50+q4QK7xsetGNgZiqI BKK/ZaHeuhqeEuoZeHqsrFzjjxQHe2rxbH3k8Fg4= Received: by mx.zohomail.com with SMTPS id 1741636804736523.5407434249297; Mon, 10 Mar 2025 13:00:04 -0700 (PDT) From: Ariel D'Alessandro To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: boris.brezillon@collabora.com, robh@kernel.org, steven.price@arm.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, kernel@collabora.com, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, sjoerd@collabora.com, Ariel D'Alessandro Subject: [PATCH v1 3/6] drm/panfrost: Unify panfrost_mmu_enable/disable common code Date: Mon, 10 Mar 2025 16:59:18 -0300 Message-ID: <20250310195921.157511-4-ariel.dalessandro@collabora.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250310195921.157511-1-ariel.dalessandro@collabora.com> References: <20250310195921.157511-1-ariel.dalessandro@collabora.com> 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 X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" Both these functions write to MMU_AS_CONTROL register in the same way. Define a common _panfrost_mmu_as_control_write function with the shared code. Signed-off-by: Ariel D'Alessandro --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 33 ++++++++++++------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panf= rost/panfrost_mmu.c index 294f86b3c25e7..31df3a96f89bd 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -121,38 +121,37 @@ static int mmu_hw_do_operation(struct panfrost_device= *pfdev, return ret; } =20 -static void panfrost_mmu_enable(struct panfrost_device *pfdev, struct panf= rost_mmu *mmu) +static void +_panfrost_mmu_as_control_write(struct panfrost_device *pfdev, u32 as_nr, + u64 transtab, u64 memattr) { - int as_nr =3D mmu->as; - struct io_pgtable_cfg *cfg =3D &mmu->pgtbl_cfg; - u64 transtab =3D cfg->arm_mali_lpae_cfg.transtab; - u64 memattr =3D cfg->arm_mali_lpae_cfg.memattr; - mmu_hw_do_operation_locked(pfdev, as_nr, 0, ~0ULL, AS_COMMAND_FLUSH_MEM); =20 mmu_write(pfdev, AS_TRANSTAB_LO(as_nr), lower_32_bits(transtab)); mmu_write(pfdev, AS_TRANSTAB_HI(as_nr), upper_32_bits(transtab)); =20 - /* Need to revisit mem attrs. - * NC is the default, Mali driver is inner WT. - */ mmu_write(pfdev, AS_MEMATTR_LO(as_nr), lower_32_bits(memattr)); mmu_write(pfdev, AS_MEMATTR_HI(as_nr), upper_32_bits(memattr)); =20 write_cmd(pfdev, as_nr, AS_COMMAND_UPDATE); } =20 -static void panfrost_mmu_disable(struct panfrost_device *pfdev, u32 as_nr) +static void panfrost_mmu_enable(struct panfrost_device *pfdev, struct panf= rost_mmu *mmu) { - mmu_hw_do_operation_locked(pfdev, as_nr, 0, ~0ULL, AS_COMMAND_FLUSH_MEM); - - mmu_write(pfdev, AS_TRANSTAB_LO(as_nr), 0); - mmu_write(pfdev, AS_TRANSTAB_HI(as_nr), 0); + int as_nr =3D mmu->as; + struct io_pgtable_cfg *cfg =3D &mmu->pgtbl_cfg; + u64 transtab =3D cfg->arm_mali_lpae_cfg.transtab; + u64 memattr =3D cfg->arm_mali_lpae_cfg.memattr; =20 - mmu_write(pfdev, AS_MEMATTR_LO(as_nr), 0); - mmu_write(pfdev, AS_MEMATTR_HI(as_nr), 0); + /* Need to revisit mem attrs. + * NC is the default, Mali driver is inner WT. + */ + _panfrost_mmu_as_control_write(pfdev, as_nr, transtab, memattr); +} =20 - write_cmd(pfdev, as_nr, AS_COMMAND_UPDATE); +static void panfrost_mmu_disable(struct panfrost_device *pfdev, u32 as_nr) +{ + _panfrost_mmu_as_control_write(pfdev, as_nr, 0, 0); } =20 u32 panfrost_mmu_as_get(struct panfrost_device *pfdev, struct panfrost_mmu= *mmu) --=20 2.47.2