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[104.188.17.28]) by smtp.gmail.com with ESMTPSA id u23sm2027296pfm.29.2020.01.07.23.21.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2020 23:21:53 -0800 (PST) Date: Tue, 7 Jan 2020 23:21:50 -0800 From: Bjorn Andersson To: Stephen Boyd Cc: Elliot Berman , agross@kernel.org, Stephan Gerhold , saiprakash.ranjan@codeaurora.org, tsoni@codeaurora.org, sidgup@codeaurora.org, psodagud@codeaurora.org, Brian Masney , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 00/17] Restructure, improve target support for qcom_scm driver Message-ID: <20200108072150.GK738324@yoga> References: <1578431066-19600-1-git-send-email-eberman@codeaurora.org> <20200108064253.GB4023550@builder> <5e157cb3.1c69fb81.4f0ae.6172@mx.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5e157cb3.1c69fb81.4f0ae.6172@mx.google.com> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 07 Jan 22:54 PST 2020, Stephen Boyd wrote: > Quoting Bjorn Andersson (2020-01-07 22:42:53) > > On Tue 07 Jan 13:04 PST 2020, Elliot Berman wrote: > > > > > This series improves support for 32-bit Qualcomm targets on qcom_scm driver and cleans > > > up the driver for 64-bit implementations. > > > > > > Currently, the qcom_scm driver supports only 64-bit Qualcomm targets and very > > > old 32-bit Qualcomm targets. Newer 32-bit targets use ARM's SMC Calling > > > Convention to communicate with secure world. Older 32-bit targets use a > > > "buffer-based" legacy approach for communicating with secure world (as > > > implemented in qcom_scm-32.c). All arm64 Qualcomm targets use ARM SMCCC. > > > Currently, SMCCC-based communication is enabled only on ARM64 config and > > > buffer-based communication only on ARM config. This patch-series combines SMCCC > > > and legacy conventions and selects the correct convention by querying the secure > > > world [1]. > > > > > > We decided to take the opportunity as well to clean up the driver rather than > > > try to patch together qcom_scm-32 and qcom_scm-64. > > > > > > > Series applied. > > Without the change-ids presumably? Of course. > I was going to review the patch series tomorrow but I guess no more > need! ;-) > Thanks, I do appreciate the intention :) Regards, Bjorn