From patchwork Tue Mar 12 10:51:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Cassel X-Patchwork-Id: 13589829 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 EE1052572 for ; Tue, 12 Mar 2024 10:52:26 +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=1710240747; cv=none; b=Xc+OT1PkOwx2nYcMILg9fwc67FAjzwu9H96kraNgxqEjchmbxVVzPLhVhubcNfVLI3sN6v904tR3LPdXP94KXGGgJTm3S5dV54WNazRNzRQ5ewhFqf54DHghbzEFgBEV/BSOF3SquObz9jQUoV9jm68xl2fRALvscmop/4OgSQ0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710240747; c=relaxed/simple; bh=gLB2KAEejr4yFbPG8yMOboe39FhTnoO5eBMwKPyo8g4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Lkz9Kdj5qzEJGYUH2WRIUkUMQ2Uml+t2WQdlK0V7wJfjSaiKUQ2xMe7nNDPDzt8V8w2Ooe0p2j6RWX/2rE3yn5ykPavBUIuDSapEYX0rAZTlw5lNru7xPY3t/5LVitmgmrt+C1r1I4ri7+AiBCazN6QWqTNd6sVJQBTF+LApyOM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CzVsGs74; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CzVsGs74" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 60213C433F1; Tue, 12 Mar 2024 10:52:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710240746; bh=gLB2KAEejr4yFbPG8yMOboe39FhTnoO5eBMwKPyo8g4=; h=From:To:Cc:Subject:Date:From; b=CzVsGs74ke+htWoFS1y92ISAzn84V9qYO620OqY4AaIRCoxZICT4QVvVOsI6RmJlY joo81K7vtNGO3Ve1YuFQCMgJABzfhXHYDMf0ydEXD0Ey5PbEtv1N3CVyy6hECWxbyh xb1uTmvupOXY2JFGcMbCFX5IR6VY9tvIu9rXIQgzSV6KCbVew6r0WzxhIBh8bS/4Ix ll/dhYFRaZVwnnJ4iBvaQWVNctgDvg6hWPCNNJjDi1pDZzdnMLpc3vTvMqrh9u0Dwz HemhIiE41ruFqblUSjv5c1HhnMSnlrYkYFza8n6hmvI6cgrKwfb5JSzBsR6w1OYmkx 4oNxChfd0Xr+w== From: Niklas Cassel To: Manivannan Sadhasivam , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Bjorn Helgaas , Shawn Lin , Heiko Stuebner , Kishon Vijay Abraham I Cc: Shradha Todi , Damien Le Moal , Niklas Cassel , linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 0/9] PCI: endpoint: set prefetchable bit for 64-bit BARs Date: Tue, 12 Mar 2024 11:51:40 +0100 Message-ID: <20240312105152.3457899-1-cassel@kernel.org> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Shradha Todi wanted to add prefetchable BAR support by adding more things to epc_features: https://lore.kernel.org/linux-pci/20240228134448.56372-1-shradha.t@samsung.com/T/#t The series starts off with some generic cleanups and fixes which was needed to make the implementation of the actual feature easier. The final patch in the series sets the prefetchable bit for all backing memory that the EPF core allocates for a 64-bit BAR. Kind regards, Niklas Changes since V2: -Addressed my own comments. -Added additional clean up patches. Niklas Cassel (9): PCI: endpoint: pci-epf-test: Fix incorrect loop increment PCI: endpoint: Allocate a 64-bit BAR if that is the only option PCI: endpoint: pci-epf-test: Remove superfluous code PCI: endpoint: pci-epf-test: Simplify pci_epf_test_alloc_space() loop PCI: endpoint: pci-epf-test: Simplify pci_epf_test_set_bar() loop PCI: endpoint: pci-epf-test: Clean up pci_epf_test_unbind() PCI: cadence: Set a 64-bit BAR if requested PCI: rockchip-ep: Set a 64-bit BAR if requested PCI: endpoint: Set prefetch when allocating memory for 64-bit BARs .../pci/controller/cadence/pcie-cadence-ep.c | 5 +- drivers/pci/controller/pcie-rockchip-ep.c | 2 +- drivers/pci/endpoint/functions/pci-epf-test.c | 67 +++++++------------ drivers/pci/endpoint/pci-epf-core.c | 10 ++- 4 files changed, 33 insertions(+), 51 deletions(-)