From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Wed, 25 Mar 2015 17:01:04 +0000 Subject: [patch v11 10/23] ARM64 / ACPI: Get PSCI flags in FADT for PSCI init In-Reply-To: <1427205776-5060-11-git-send-email-hanjun.guo@linaro.org> References: <1427205776-5060-1-git-send-email-hanjun.guo@linaro.org> <1427205776-5060-11-git-send-email-hanjun.guo@linaro.org> Message-ID: <20150325170104.GH14585@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Mar 24, 2015 at 10:02:43PM +0800, Hanjun Guo wrote: > From: Graeme Gregory > > There are two flags: PSCI_COMPLIANT and PSCI_USE_HVC. When set, > the former signals to the OS that the firmware is PSCI compliant. > The latter selects the appropriate conduit for PSCI calls by > toggling between Hypervisor Calls (HVC) and Secure Monitor Calls > (SMC). > > FADT table contains such information in ACPI 5.1, FADT table was > parsed in ACPI table init and copy to struct acpi_gbl_FADT, so > use the flags in struct acpi_gbl_FADT for PSCI init. > > Since ACPI 5.1 doesn't support self defined PSCI function IDs, > which means that only PSCI 0.2+ is supported in ACPI. > > CC: Lorenzo Pieralisi > CC: Catalin Marinas > CC: Will Deacon > Tested-by: Suravee Suthikulpanit > Tested-by: Yijing Wang > Tested-by: Mark Langsdorf > Tested-by: Jon Masters > Tested-by: Timur Tabi > Tested-by: Robert Richter > Acked-by: Robert Richter > Acked-by: Olof Johansson > Acked-by: Grant Likely > Signed-off-by: Graeme Gregory > Signed-off-by: Tomasz Nowicki > Signed-off-by: Hanjun Guo Acked-by: Catalin Marinas