linux-kernel - Re: (subset) [PATCH v10 00/15] firmware: qcom: implement support for and enable SHM bridge

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Message-ID: <171918045249.6755.6497330725295979529.b4-ty@kernel.org>
Date: Sun, 23 Jun 2024 17:09:15 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Robert Marko <robimarko@...il.com>,
	Das Srinagesh <quic_gurus@...cinc.com>,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	Maximilian Luz <luzmaximilian@...il.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Srini Kandagatla <srinivas.kandagatla@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Elliot Berman <quic_eberman@...cinc.com>,
	Alex Elder <elder@...nel.org>,
	Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	kernel@...cinc.com,
	Andrew Halaney <ahalaney@...hat.com>,
	Deepti Jaggi <quic_djaggi@...cinc.com>
Subject: Re: (subset) [PATCH v10 00/15] firmware: qcom: implement support for and enable SHM bridge


On Mon, 27 May 2024 14:54:50 +0200, Bartosz Golaszewski wrote:
> SCM calls that take memory buffers as arguments require that they be
> page-aligned, physically continuous and non-cachable. The same
> requirements apply to the buffer used to pass additional arguments to SCM
> calls that take more than 4.
> 
> To that end drivers typically use dma_alloc_coherent() to allocate memory
> of suitable format which is slow and inefficient space-wise.
> 
> [...]

Applied, thanks!

[15/15] arm64: dts: qcom: sa8775p: add a dedicated memory carveout for TZ
        commit: d7aeff30093888649789dcad070fe954745adf53

b4 gets confused by me applying patches across multiple branches, the other 14
patches has obviously also been applied.

Best regards,
-- 
Bjorn Andersson <andersson@...nel.org>