From: Niklas Cassel <cassel@kernel.org>
To: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Cc: bhelgaas@google.com, lpieralisi@kernel.org,
kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org,
krzk+dt@kernel.org, conor+dt@kernel.org,
thierry.reding@gmail.com, jonathanh@nvidia.com,
kishon@kernel.org, arnd@arndb.de, gregkh@linuxfoundation.org,
Frank.Li@nxp.com, den@valinux.co.jp, hongxing.zhu@nxp.com,
jingoohan1@gmail.com, vidyas@nvidia.com, 18255117159@163.com,
linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/5] PCI: endpoint: Allow only_64bit on BAR_RESERVED
Date: Tue, 3 Mar 2026 14:46:45 +0100 [thread overview]
Message-ID: <aabmRaW5oKuNt7_X@ryzen> (raw)
In-Reply-To: <20260303072004.2384079-3-mmaddireddy@nvidia.com>
On Tue, Mar 03, 2026 at 12:50:01PM +0530, Manikanta Maddireddy wrote:
> Remove the documentation that forbids setting only_64bit on a BAR of
> type BAR_RESERVED.
>
> When a reserved BAR is 64-bit by default, setting only_64bit is the
> most accurate description. If we later add support to disable a
> reserved BAR (e.g. disable_bar() for BARs that were never set via
> set_bar()), the implementation will need to clear the adjacent BAR
> (upper 32 bits) as well; having only_64bit set documents that
> requirement.
>
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
> ---
Reviewed-by: Niklas Cassel <cassel@kernel.org>
next prev parent reply other threads:[~2026-03-03 13:46 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 7:19 [PATCH v2 0/5] PCI: endpoint: Add Tegra194/234 BAR layout and pci_endpoint_test support Manikanta Maddireddy
2026-03-03 7:20 ` [PATCH v2 1/5] PCI: endpoint: Add reserved region type for MSI-X Table and PBA Manikanta Maddireddy
2026-03-03 13:46 ` Niklas Cassel
2026-03-03 7:20 ` [PATCH v2 2/5] PCI: endpoint: Allow only_64bit on BAR_RESERVED Manikanta Maddireddy
2026-03-03 13:46 ` Niklas Cassel [this message]
2026-03-03 7:20 ` [PATCH v2 3/5] PCI: tegra194: Make BAR0 programmable and remove 1MB size limit Manikanta Maddireddy
2026-03-03 13:48 ` Niklas Cassel
2026-03-03 7:20 ` [PATCH v2 4/5] PCI: tegra194: Expose BAR2 (MSI-X) and BAR4 (DMA) as 64-bit BAR_RESERVED Manikanta Maddireddy
2026-03-03 13:51 ` Niklas Cassel
2026-03-03 7:20 ` [PATCH v2 5/5] misc: pci_endpoint_test: Add Tegra194 and Tegra234 device table entries Manikanta Maddireddy
2026-03-03 13:49 ` Niklas Cassel
2026-03-21 12:32 ` [PATCH v2 0/5] PCI: endpoint: Add Tegra194/234 BAR layout and pci_endpoint_test support Manivannan Sadhasivam
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