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From: Han Jingoo <jingoohan1@gmail.com>
To: Will McVicker <willmcvicker@google.com>
Cc: "Gustavo Pimentel" <gustavo.pimentel@synopsys.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	kernel-team@android.com, "Vidya Sagar" <vidyas@nvidia.com>,
	"Christoph Hellwig" <hch@infradead.org>,
	"<linux-pci@vger.kernel.org>" <linux-pci@vger.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Isaac J . Manjarres" <isaacmanjarres@google.com>
Subject: Re: [PATCH v4 1/2] PCI: dwc: Drop dependency on ZONE_DMA32
Date: Thu, 11 Aug 2022 19:47:15 -0700	[thread overview]
Message-ID: <CAPOBaE6rQmk6yZhhRPvvqcOHSv_83Z=qXDoOEMhkcCFw91A5JQ@mail.gmail.com> (raw)
In-Reply-To: <20220812000327.3154251-2-willmcvicker@google.com>

On 08/11/2022, Will McVicker wrote:
> Re-work the msi_msg DMA allocation logic to use dmam_alloc_coherent() which
> uses the coherent DMA mask to try to return an allocation within the DMA
> mask limits. With that, we now can drop the msi_page parameter in struct
> dw_pcie_rp. This allows kernel configurations that disable ZONE_DMA32 to
> continue supporting a 32-bit DMA mask. Without this patch, the PCIe host
> device will fail to probe when ZONE_DMA32 is disabled.
>
> Fixes: 35797e672ff0 ("PCI: dwc: Fix MSI msi_msg DMA mapping")
> Reported-by: Isaac J. Manjarres <isaacmanjarres@google.com>
> Signed-off-by: Will McVicker <willmcvicker@google.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>

> ---
> .../pci/controller/dwc/pcie-designware-host.c | 28 +++++--------------
> drivers/pci/controller/dwc/pcie-designware.h  |  1 -
> 2 files changed, 7 insertions(+), 22 deletions(-)

…..

  reply	other threads:[~2022-08-12  2:47 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-12  0:03 [PATCH v4 0/2] PCI: dwc: Add support for 64-bit MSI target addresses Will McVicker
2022-08-12  0:03 ` [PATCH v4 1/2] PCI: dwc: Drop dependency on ZONE_DMA32 Will McVicker
2022-08-12  2:47   ` Han Jingoo [this message]
2022-08-12 18:21   ` Rob Herring
2022-08-12  0:03 ` [PATCH v4 2/2] PCI: dwc: Add support for 64-bit MSI target address Will McVicker
2022-08-12  2:46   ` Han Jingoo
2022-08-23 11:27   ` Robin Murphy
2022-08-25 18:39     ` William McVicker
2022-08-23 10:01 ` [PATCH v4 0/2] PCI: dwc: Add support for 64-bit MSI target addresses Lorenzo Pieralisi

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