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Mon, 23 Feb 2026 13:54:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771854853; bh=BkbVqrxwslwfCuDaT1JocKp3CNCm6IksZzE7xGY/xTM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=jkG5vNAooI9mXtVVkTGsqErbsf3ihx17bubrXaOQq22tESBMK+KAaN0yBwz44d13x 6+QUU+7VRfU4h7OQGFaHFJZRWLBnD0SkcStaAmLcanSkND5o9ypxpjpVoe+2zeQ63C 1SqqxtYxfF3rLYsMtMFjFxSQPypf4EBk8eemEDpq4+lsNXPjruCVgGxwUaqsrHtHKr lhZgt+pZ+T4fjPiEp4I/bHP/1kNUs4Ll+UTbqANeIJP4/srbBe95/iHjwYCntGvRL/ gqHcS3elMXcNG1yWvyoOdQCeVESf79qfTIbJoRsZAiftw2lQoYsmJyQphs480F/1Iv SEsS030xzeatA== Message-ID: Date: Mon, 23 Feb 2026 14:54:10 +0100 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/6] fsl-mc: Move fsl_over to device MSI To: Marc Zyngier , Ioana Ciornei Cc: Thomas Gleixner , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org References: <20260218135203.2267907-1-maz@kernel.org> <86ms0za8e0.wl-maz@kernel.org> Content-Language: fr-FR From: "Christophe Leroy (CS GROUP)" In-Reply-To: <86ms0za8e0.wl-maz@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi Marc, Le 23/02/2026 à 14:37, Marc Zyngier a écrit : > On Fri, 20 Feb 2026 15:41:03 +0000, > Ioana Ciornei wrote: >> >> On Wed, Feb 18, 2026 at 01:51:57PM +0000, Marc Zyngier wrote: >>> Over the past few years, I have become increasingly annoyed by this >>> sort of messages in my boot log: >>> >>> [ 0.067861] fsl-mc MSI: ITS@0x100100040000 domain created >>> [ 0.073352] fsl-mc MSI: ITS@0x100100060000 domain created >>> [ 0.078841] fsl-mc MSI: ITS@0x100100080000 domain created >>> [ 0.084328] fsl-mc MSI: ITS@0x1001000a0000 domain created >>> [ 0.089815] fsl-mc MSI: ITS@0x1001000c0000 domain created >>> [ 0.095303] fsl-mc MSI: ITS@0x1001000e0000 domain created >>> [ 0.100792] fsl-mc MSI: ITS@0x100100100000 domain created >>> [ 0.106281] fsl-mc MSI: ITS@0x100100120000 domain created >>> >>> While this is useful on fsl-mc systems, this is completely irrelevant >>> on 99.99999% of the arm64 machines, which know nothing about the >>> Freescale stuff. Including all of my machine -- bar *one*. >>> >>> Global MSI domains such as the above have been obsoleted for the past >>> two years, but nobody at NXP seems to have got the message. >> >> I do admit that I wasn't aware that this neeeded work. In the future, >> please let me know of this kind of things and I will do the work. > > I guess Thomas did too good a job not breaking fsl-mc when both PCI > and platform MSIs were rewritten, hence you missing on the good stuff! > >> >>> >>> The obvious solution is to delete some code! While my first port of >>> call would be to just 'git rm -r drivers/bus/fsl-mc' (only kidding!), >>> a less invasive solution is to drag that code into the present times. >>> Which is what this series is doing by converting the whole thing to >>> device MSI, reusing the platform MSI infrastructure instead of >>> duplicating it. >>> >>> This results in the expected cleanup, and kills the last user of the >>> non-device-MSI stuff on arm64. You're welcome. >> >> Thanks! >> >> Tested-by: Ioana Ciornei # LX2160ARDB, LS2088ARDB >> Reviewed-by: Ioana Ciornei > > Thanks for giving it a go. Don't know what is your merge plan. I wanted to push it to soc fsl tree but it doesn't apply on top of v7.0-rc1: $ LANG= b4 shazam -l 20260218135203.2267907-1-maz@kernel.org Grabbing thread from lore.kernel.org/all/20260218135203.2267907-1-maz@kernel.org/t.mbox.gz Checking for newer revisions Grabbing search results from lore.kernel.org Analyzing 14 messages in the thread Analyzing 0 code-review messages Checking attestation on all messages, may take a moment... --- ✓ [PATCH 1/6] fsl-mc: Remove MSI domain propagation to sub-devices + Tested-by: Ioana Ciornei (✓ DKIM/nxp.com) + Reviewed-by: Ioana Ciornei (✓ DKIM/nxp.com) + Tested-by: Sascha Bischoff (✓ DKIM/arm.com) + Link: https://lore.kernel.org/r/20260218135203.2267907-2-maz@kernel.org ✓ [PATCH 2/6] fsl_mc: Add minimal infrastructure to use platform MSI + Tested-by: Ioana Ciornei (✓ DKIM/nxp.com) + Reviewed-by: Ioana Ciornei (✓ DKIM/nxp.com) + Tested-by: Sascha Bischoff (✓ DKIM/arm.com) + Link: https://lore.kernel.org/r/20260218135203.2267907-3-maz@kernel.org ✓ [PATCH 3/6] irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling + Tested-by: Ioana Ciornei (✓ DKIM/nxp.com) + Reviewed-by: Ioana Ciornei (✓ DKIM/nxp.com) + Tested-by: Sascha Bischoff (✓ DKIM/arm.com) + Link: https://lore.kernel.org/r/20260218135203.2267907-4-maz@kernel.org ✓ [PATCH 4/6] fsl_mc: Switch over to per-device platform MSI + Tested-by: Ioana Ciornei (✓ DKIM/nxp.com) + Reviewed-by: Ioana Ciornei (✓ DKIM/nxp.com) + Tested-by: Sascha Bischoff (✓ DKIM/arm.com) + Link: https://lore.kernel.org/r/20260218135203.2267907-5-maz@kernel.org ✓ [PATCH 5/6] fsl_mc: Remove legacy MSI implementation + Tested-by: Ioana Ciornei (✓ DKIM/nxp.com) + Reviewed-by: Ioana Ciornei (✓ DKIM/nxp.com) + Tested-by: Sascha Bischoff (✓ DKIM/arm.com) + Link: https://lore.kernel.org/r/20260218135203.2267907-6-maz@kernel.org ✓ [PATCH 6/6] platform-msi: Remove stale comment + Tested-by: Ioana Ciornei (✓ DKIM/nxp.com) + Reviewed-by: Ioana Ciornei (✓ DKIM/nxp.com) + Tested-by: Sascha Bischoff (✓ DKIM/arm.com) + Link: https://lore.kernel.org/r/20260218135203.2267907-7-maz@kernel.org --- ✓ Signed: DKIM/kernel.org --- Total patches: 6 --- Applying: fsl-mc: Remove MSI domain propagation to sub-devices Applying: fsl_mc: Add minimal infrastructure to use platform MSI Applying: irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling Patch failed at 0003 irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling error: patch failed: drivers/irqchip/irq-gic-its-msi-parent.c:186 error: drivers/irqchip/irq-gic-its-msi-parent.c: patch does not apply hint: Use 'git am --show-current-patch=diff' to see the failed patch hint: When you have resolved this problem, run "git am --continue". hint: If you prefer to skip this patch, run "git am --skip" instead. hint: To restore the original branch and stop patching, run "git am --abort". hint: Disable this message with "git config set advice.mergeConflict false" Let me know how you want to proceed. Thanks Christophe