From: Christoph Hellwig <hch@lst.de>
To: Reza Arbab <arbab@linux.ibm.com>
Cc: Andrew Donnellan <ajd@linux.ibm.com>,
Alexey Kardashevskiy <aik@ozlabs.ru>,
Paul Mackerras <paulus@samba.org>,
Alistair Popple <alistair@popple.id.au>,
Oliver O'Halloran <oohall@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 11/11] powerpc/powernv: Add pnv_pci_ioda_dma_set_mask()
Date: Wed, 30 Oct 2019 18:55:18 +0100 [thread overview]
Message-ID: <20191030175518.GB19166@lst.de> (raw)
In-Reply-To: <1572454800-17976-12-git-send-email-arbab@linux.ibm.com>
On Wed, Oct 30, 2019 at 12:00:00PM -0500, Reza Arbab wrote:
> Change pnv_pci_ioda_iommu_bypass_supported() to have no side effects, by
> separating the part of the function that determines if bypass is
> supported from the part that actually attempts to configure it.
>
> Move the latter to a controller-specific dma_set_mask() callback.
Nak, the dma_set_mask overrides are going away. But as said in the
reply to the cover letter I don't even see how you could end up calling
this code.
next prev parent reply other threads:[~2019-10-30 17:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 16:59 [PATCH 00/11] powerpv/powernv: Restore pnv_npu_try_dma_set_bypass() Reza Arbab
2019-10-30 16:59 ` [PATCH 01/11] Revert "powerpc/powernv: Remove unused pnv_npu_try_dma_set_bypass() function" Reza Arbab
2019-10-30 16:59 ` [PATCH 02/11] powerpc/powernv: Add pnv_ioda_pe_iommu_bypass_supported() Reza Arbab
2019-10-30 16:59 ` [PATCH 03/11] powerpc/powernv/npu: Change pnv_npu_try_dma_set_bypass() argument Reza Arbab
2019-10-30 16:59 ` [PATCH 04/11] powerpc/powernv/npu: Wire up pnv_npu_try_dma_set_bypass() Reza Arbab
2019-10-30 16:59 ` [PATCH 05/11] powerpc/powernv: Return failure for some uses of dma_set_mask() Reza Arbab
2019-10-30 16:59 ` [PATCH 06/11] powerpc/powernv: Remove intermediate variable Reza Arbab
2019-10-30 16:59 ` [PATCH 07/11] powerpc/powernv/npu: Simplify pnv_npu_try_dma_set_bypass() loop Reza Arbab
2019-10-30 16:59 ` [PATCH 08/11] powerpc/powernv: Replace open coded pnv_ioda_get_pe()s Reza Arbab
2019-10-30 16:59 ` [PATCH 09/11] Revert "powerpc/pci: remove the dma_set_mask pci_controller ops methods" Reza Arbab
2019-10-30 16:59 ` [PATCH 10/11] powerpc/powernv: Add pnv_phb3_iommu_bypass_supported() Reza Arbab
2019-10-30 17:00 ` [PATCH 11/11] powerpc/powernv: Add pnv_pci_ioda_dma_set_mask() Reza Arbab
2019-10-30 17:55 ` Christoph Hellwig [this message]
2019-10-30 18:10 ` Reza Arbab
2019-10-30 17:53 ` [PATCH 00/11] powerpv/powernv: Restore pnv_npu_try_dma_set_bypass() Christoph Hellwig
2019-10-30 18:08 ` Reza Arbab
2019-10-30 18:13 ` Christoph Hellwig
2019-10-30 18:32 ` Reza Arbab
2019-10-30 18:33 ` Christoph Hellwig
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