Re: [RESEND PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On 06/14/2016 08:50 AM, Catalin Marinas wrote: > On Tue, Jun 14, 2016 at 08:46:26AM -0600, Al Stone wrote: >> On 06/14/2016 03:24 AM, Will Deacon wrote: >>> On Tue, Jun 14, 2016 at 10:13:31AM +0100, Will Deacon wrote: On Mon, Jun 13, 2016 at 03:41:54PM -0600, Al Stone wrote: > This is a resend only: Ping? Last ping was 26 May; there has been zero > response since then. Already have one ACK from Lorenzo; another from an > arm64 maintainer would be really helpful. I thought there were outstanding comments on v4 of this? http://lkml.kernel.org/r/571e699b.9090...@linaro.org >>> >>> Hmm, that's weird. You sent a v5 on 25 April: >>> >>> http://archive.arm.linux.org.uk/lurker/message/20160425.212126.fe36116c.en.html >>> >>> but I can't find that in either my ARM inbox or my gmail inbox that's >>> subscribed to the lists. I guess Catalin can pick this up for 4.8. >> >> Huh. I have no idea why that would have happened. I used the same >> script to send the emails for all the revisions. >> >> Thanks for checking, Will. If this would get picked up for 4.8, that would >> be >> most excellent. > > I'll queue it for 4.8 (should appear in -next towards the end of this > week). > Brilliant. Thanks, Catalin! -- ciao, al --- Al Stone Software Engineer Red Hat, Inc. a...@redhat.com --- -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [RESEND PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On Tue, Jun 14, 2016 at 08:46:26AM -0600, Al Stone wrote: > On 06/14/2016 03:24 AM, Will Deacon wrote: > > On Tue, Jun 14, 2016 at 10:13:31AM +0100, Will Deacon wrote: > >> On Mon, Jun 13, 2016 at 03:41:54PM -0600, Al Stone wrote: > >>> This is a resend only: Ping? Last ping was 26 May; there has been zero > >>> response since then. Already have one ACK from Lorenzo; another from an > >>> arm64 maintainer would be really helpful. > >> > >> I thought there were outstanding comments on v4 of this? > >> > >> http://lkml.kernel.org/r/571e699b.9090...@linaro.org > > > > Hmm, that's weird. You sent a v5 on 25 April: > > > > http://archive.arm.linux.org.uk/lurker/message/20160425.212126.fe36116c.en.html > > > > but I can't find that in either my ARM inbox or my gmail inbox that's > > subscribed to the lists. I guess Catalin can pick this up for 4.8. > > Huh. I have no idea why that would have happened. I used the same > script to send the emails for all the revisions. > > Thanks for checking, Will. If this would get picked up for 4.8, that would be > most excellent. I'll queue it for 4.8 (should appear in -next towards the end of this week). -- Catalin -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [RESEND PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On 06/14/2016 03:24 AM, Will Deacon wrote: > On Tue, Jun 14, 2016 at 10:13:31AM +0100, Will Deacon wrote: >> On Mon, Jun 13, 2016 at 03:41:54PM -0600, Al Stone wrote: >>> This is a resend only: Ping? Last ping was 26 May; there has been zero >>> response since then. Already have one ACK from Lorenzo; another from an >>> arm64 maintainer would be really helpful. >> >> I thought there were outstanding comments on v4 of this? >> >> http://lkml.kernel.org/r/571e699b.9090...@linaro.org > > Hmm, that's weird. You sent a v5 on 25 April: > > http://archive.arm.linux.org.uk/lurker/message/20160425.212126.fe36116c.en.html > > but I can't find that in either my ARM inbox or my gmail inbox that's > subscribed to the lists. I guess Catalin can pick this up for 4.8. > > Will Huh. I have no idea why that would have happened. I used the same script to send the emails for all the revisions. Thanks for checking, Will. If this would get picked up for 4.8, that would be most excellent. -- ciao, al --- Al Stone Software Engineer Red Hat, Inc. a...@redhat.com --- -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [RESEND PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On Tue, Jun 14, 2016 at 10:13:31AM +0100, Will Deacon wrote: > On Mon, Jun 13, 2016 at 03:41:54PM -0600, Al Stone wrote: > > This is a resend only: Ping? Last ping was 26 May; there has been zero > > response since then. Already have one ACK from Lorenzo; another from an > > arm64 maintainer would be really helpful. > > I thought there were outstanding comments on v4 of this? > > http://lkml.kernel.org/r/571e699b.9090...@linaro.org Hmm, that's weird. You sent a v5 on 25 April: http://archive.arm.linux.org.uk/lurker/message/20160425.212126.fe36116c.en.html but I can't find that in either my ARM inbox or my gmail inbox that's subscribed to the lists. I guess Catalin can pick this up for 4.8. Will -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [RESEND PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On Mon, Jun 13, 2016 at 03:41:54PM -0600, Al Stone wrote: > This is a resend only: Ping? Last ping was 26 May; there has been zero > response since then. Already have one ACK from Lorenzo; another from an > arm64 maintainer would be really helpful. I thought there were outstanding comments on v4 of this? http://lkml.kernel.org/r/571e699b.9090...@linaro.org Will -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[RESEND PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
This is a resend only: Ping? Last ping was 26 May; there has been zero response since then. Already have one ACK from Lorenzo; another from an arm64 maintainer would be really helpful. The ACPI 6.1 specification was recently released at the end of January 2016, but the arm64 kernel documentation for the use of ACPI was written for the 5.1 version of the spec. There were significant additions to the spec that had not yet been mentioned -- for example, the 6.0 mechanisms added to make it easier to define processors and low power idle states, as well as the 6.1 addition allowing regular interrupts (not just from GPIO) be used to signal ACPI general purpose events. This patch reflects going back through and examining the specs in detail and updating content appropriately. Whilst there, a few odds and ends of typos were caught as well. This brings the documentation up to date with ACPI 6.1 for arm64. Changes for v5: -- Miscellaneous typos and corrections (Lorenzo Pieralisi) -- Add linux-acpi@ ML to the distribution list (Alexey Klimov) -- Corrections to CPPC information (Alexey Klimov) -- ACK from Lorenzo Pieralisi -- Updated bibliographic info (Al Stone) Changes for v4: -- Clarify that IORT can sometimes be optional (Jon Masters). -- Remove "Use as needed" descriptions of ACPI objects; they provide no substantive information and doing so simplifies maintenance of this document over time. These have been replaced with a simpler notice that states that unless otherwise noted, do what the ACPI specification says is needed. -- Corrected the _OSI object usage recommendation; it described kernel behavior that does not exist (Al Stone). Changes for v3: -- Clarify use of _LPI/_RDI (Vikas Sajjan) -- Whitespace cleanup as pointed out by checkpatch Changes for v2: -- Clean up white space (Harb Abdulhahmid) -- Clarification on _CCA usage (Harb Abdulhamid) -- IORT moved to required from recommended (Hanjun Guo) -- Clarify IORT description (Hanjun Guo) Al Stone (1): ARM64: ACPI: Update documentation for latest specification version Documentation/arm64/acpi_object_usage.txt | 343 -- Documentation/arm64/arm-acpi.txt | 40 ++-- 2 files changed, 213 insertions(+), 170 deletions(-) -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On 05/17/2016 10:30 AM, Al Stone wrote: > On 05/16/2016 05:44 PM, Alexey Klimov wrote: >> On Mon, May 2, 2016 at 09:19 PM, Al Stone wrote: >>> On 04/25/2016 03:21 PM, Al Stone wrote: The ACPI 6.1 specification was recently released at the end of January 2016, but the arm64 kernel documentation for the use of ACPI was written for the 5.1 version of the spec. There were significant additions to the spec that had not yet been mentioned -- for example, the 6.0 mechanisms added to make it easier to define processors and low power idle states, as well as the 6.1 addition allowing regular interrupts (not just from GPIO) be used to signal ACPI general purpose events. This patch reflects going back through and examining the specs in detail and updating content appropriately. Whilst there, a few odds and ends of typos were caught as well. This brings the documentation up to date with ACPI 6.1 for arm64. Changes for v5: -- Miscellaneous typos and corrections (Lorenzo Pieralisi) -- Add linux-acpi@ ML to the distribution list (Alexey Klimov) -- Corrections to CPPC information (Alexey Klimov) -- ACK from Lorenzo Pieralisi -- Updated bibliographic info (Al Stone) Changes for v4: -- Clarify that IORT can sometimes be optional (Jon Masters). -- Remove "Use as needed" descriptions of ACPI objects; they provide no substantive information and doing so simplifies maintenance of this document over time. These have been replaced with a simpler notice that states that unless otherwise noted, do what the ACPI specification says is needed. -- Corrected the _OSI object usage recommendation; it described kernel behavior that does not exist (Al Stone). Changes for v3: -- Clarify use of _LPI/_RDI (Vikas Sajjan) -- Whitespace cleanup as pointed out by checkpatch Changes for v2: -- Clean up white space (Harb Abdulhahmid) -- Clarification on _CCA usage (Harb Abdulhamid) -- IORT moved to required from recommended (Hanjun Guo) -- Clarify IORT description (Hanjun Guo) Al Stone (1): ARM64: ACPI: Update documentation for latest specification version Documentation/arm64/acpi_object_usage.txt | 343 -- Documentation/arm64/arm-acpi.txt | 40 ++-- 2 files changed, 213 insertions(+), 170 deletions(-) >>> >>> Ping? If there are no further comments, can this be pulled in through >>> either the documentation or arm64 tree? >>> >>> Thanks. >> >> Hi Al, >> sorry for delay. >> >> CPPC and PCC corrections look fine. Thanks. >> >> >> This comment is not to block your patch (maybe some to-do): >> I greped sources and your patch and I don't see description of _PSD object. >> This P-state dependancy object is optional but it's presense and correct data >> are extremely useful for CPPC and can potentially descrease number of >> performance >> changing requests. >> >> ACPI spec in section about CPPC tells that it may use _PSD (page 503 if I >> remember >> correctly) to specify domain belongings of CPUs. >> >> You may consider to add description of _PSD object later. >> >> Best regards, >> Alexey. >> > > Hrm. Thanks, Alexey. I'll take a look. _PSD may be in one of > the gray areas where we expect people to read the spec and follow > it properly, but it may make sense to be very explicit about what > they need to do to use it properly. Perhaps this would make a good > FWTS test, too. > Yet another ping... Just in case it is not clear, Alexey's comment and my reply here are things that *might* need to be done in the future. This version of the patch I believe is sufficient for now, based on the comments received. Lorenzo has ACKd; Hanjun has reviewed. Do I need Will and/or Catalin to ACK? Any others? -- ciao, al --- Al Stone Software Engineer Red Hat, Inc. a...@redhat.com --- -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On 05/16/2016 05:44 PM, Alexey Klimov wrote: > On Mon, May 2, 2016 at 09:19 PM, Al Stone wrote: >> On 04/25/2016 03:21 PM, Al Stone wrote: >>> The ACPI 6.1 specification was recently released at the end of January >>> 2016, but the arm64 kernel documentation for the use of ACPI was written >>> for the 5.1 version of the spec. There were significant additions to the >>> spec that had not yet been mentioned -- for example, the 6.0 mechanisms >>> added to make it easier to define processors and low power idle states, >>> as well as the 6.1 addition allowing regular interrupts (not just from >>> GPIO) be used to signal ACPI general purpose events. >>> >>> This patch reflects going back through and examining the specs in detail >>> and updating content appropriately. Whilst there, a few odds and ends of >>> typos were caught as well. This brings the documentation up to date with >>> ACPI 6.1 for arm64. >>> >>> Changes for v5: >>>-- Miscellaneous typos and corrections (Lorenzo Pieralisi) >>>-- Add linux-acpi@ ML to the distribution list (Alexey Klimov) >>>-- Corrections to CPPC information (Alexey Klimov) >>>-- ACK from Lorenzo Pieralisi >>>-- Updated bibliographic info (Al Stone) >>> >>> Changes for v4: >>>-- Clarify that IORT can sometimes be optional (Jon Masters). >>>-- Remove "Use as needed" descriptions of ACPI objects; they provide >>> no substantive information and doing so simplifies maintenance of >>> this document over time. These have been replaced with a simpler >>> notice that states that unless otherwise noted, do what the ACPI >>> specification says is needed. >>>-- Corrected the _OSI object usage recommendation; it described kernel >>> behavior that does not exist (Al Stone). >>> >>> Changes for v3: >>>-- Clarify use of _LPI/_RDI (Vikas Sajjan) >>>-- Whitespace cleanup as pointed out by checkpatch >>> >>> Changes for v2: >>>-- Clean up white space (Harb Abdulhahmid) >>>-- Clarification on _CCA usage (Harb Abdulhamid) >>>-- IORT moved to required from recommended (Hanjun Guo) >>>-- Clarify IORT description (Hanjun Guo) >>> >>> >>> Al Stone (1): >>> ARM64: ACPI: Update documentation for latest specification version >>> >>> Documentation/arm64/acpi_object_usage.txt | 343 >>> -- >>> Documentation/arm64/arm-acpi.txt | 40 ++-- >>> 2 files changed, 213 insertions(+), 170 deletions(-) >>> >> >> Ping? If there are no further comments, can this be pulled in through >> either the documentation or arm64 tree? >> >> Thanks. > > Hi Al, > sorry for delay. > > CPPC and PCC corrections look fine. Thanks. > > > This comment is not to block your patch (maybe some to-do): > I greped sources and your patch and I don't see description of _PSD object. > This P-state dependancy object is optional but it's presense and correct data > are extremely useful for CPPC and can potentially descrease number of > performance > changing requests. > > ACPI spec in section about CPPC tells that it may use _PSD (page 503 if I > remember > correctly) to specify domain belongings of CPUs. > > You may consider to add description of _PSD object later. > > Best regards, > Alexey. > Hrm. Thanks, Alexey. I'll take a look. _PSD may be in one of the gray areas where we expect people to read the spec and follow it properly, but it may make sense to be very explicit about what they need to do to use it properly. Perhaps this would make a good FWTS test, too. -- ciao, al --- Al Stone Software Engineer Linaro Enterprise Group al.st...@linaro.org --- -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On Mon, May 2, 2016 at 09:19 PM, Al Stone wrote: > On 04/25/2016 03:21 PM, Al Stone wrote: > > The ACPI 6.1 specification was recently released at the end of January > > 2016, but the arm64 kernel documentation for the use of ACPI was written > > for the 5.1 version of the spec. There were significant additions to the > > spec that had not yet been mentioned -- for example, the 6.0 mechanisms > > added to make it easier to define processors and low power idle states, > > as well as the 6.1 addition allowing regular interrupts (not just from > > GPIO) be used to signal ACPI general purpose events. > > > > This patch reflects going back through and examining the specs in detail > > and updating content appropriately. Whilst there, a few odds and ends of > > typos were caught as well. This brings the documentation up to date with > > ACPI 6.1 for arm64. > > > > Changes for v5: > >-- Miscellaneous typos and corrections (Lorenzo Pieralisi) > >-- Add linux-acpi@ ML to the distribution list (Alexey Klimov) > >-- Corrections to CPPC information (Alexey Klimov) > >-- ACK from Lorenzo Pieralisi > >-- Updated bibliographic info (Al Stone) > > > > Changes for v4: > >-- Clarify that IORT can sometimes be optional (Jon Masters). > >-- Remove "Use as needed" descriptions of ACPI objects; they provide > > no substantive information and doing so simplifies maintenance of > > this document over time. These have been replaced with a simpler > > notice that states that unless otherwise noted, do what the ACPI > > specification says is needed. > >-- Corrected the _OSI object usage recommendation; it described kernel > > behavior that does not exist (Al Stone). > > > > Changes for v3: > >-- Clarify use of _LPI/_RDI (Vikas Sajjan) > >-- Whitespace cleanup as pointed out by checkpatch > > > > Changes for v2: > >-- Clean up white space (Harb Abdulhahmid) > >-- Clarification on _CCA usage (Harb Abdulhamid) > >-- IORT moved to required from recommended (Hanjun Guo) > >-- Clarify IORT description (Hanjun Guo) > > > > > > Al Stone (1): > > ARM64: ACPI: Update documentation for latest specification version > > > > Documentation/arm64/acpi_object_usage.txt | 343 > > -- > > Documentation/arm64/arm-acpi.txt | 40 ++-- > > 2 files changed, 213 insertions(+), 170 deletions(-) > > > > Ping? If there are no further comments, can this be pulled in through > either the documentation or arm64 tree? > > Thanks. Hi Al, sorry for delay. CPPC and PCC corrections look fine. Thanks. This comment is not to block your patch (maybe some to-do): I greped sources and your patch and I don't see description of _PSD object. This P-state dependancy object is optional but it's presense and correct data are extremely useful for CPPC and can potentially descrease number of performance changing requests. ACPI spec in section about CPPC tells that it may use _PSD (page 503 if I remember correctly) to specify domain belongings of CPUs. You may consider to add description of _PSD object later. Best regards, Alexey. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On Mon, May 2, 2016 at 1:19 PM, Al Stone wrote: > On 04/25/2016 03:21 PM, Al Stone wrote: >> The ACPI 6.1 specification was recently released at the end of January >> 2016, but the arm64 kernel documentation for the use of ACPI was written >> for the 5.1 version of the spec. There were significant additions to the >> spec that had not yet been mentioned -- for example, the 6.0 mechanisms >> added to make it easier to define processors and low power idle states, >> as well as the 6.1 addition allowing regular interrupts (not just from >> GPIO) be used to signal ACPI general purpose events. >> >> This patch reflects going back through and examining the specs in detail >> and updating content appropriately. Whilst there, a few odds and ends of >> typos were caught as well. This brings the documentation up to date with >> ACPI 6.1 for arm64. >> >> Changes for v5: >>-- Miscellaneous typos and corrections (Lorenzo Pieralisi) >>-- Add linux-acpi@ ML to the distribution list (Alexey Klimov) >>-- Corrections to CPPC information (Alexey Klimov) >>-- ACK from Lorenzo Pieralisi >>-- Updated bibliographic info (Al Stone) >> >> Changes for v4: >>-- Clarify that IORT can sometimes be optional (Jon Masters). >>-- Remove "Use as needed" descriptions of ACPI objects; they provide >> no substantive information and doing so simplifies maintenance of >> this document over time. These have been replaced with a simpler >> notice that states that unless otherwise noted, do what the ACPI >> specification says is needed. >>-- Corrected the _OSI object usage recommendation; it described kernel >> behavior that does not exist (Al Stone). >> >> Changes for v3: >>-- Clarify use of _LPI/_RDI (Vikas Sajjan) >>-- Whitespace cleanup as pointed out by checkpatch >> >> Changes for v2: >>-- Clean up white space (Harb Abdulhahmid) >>-- Clarification on _CCA usage (Harb Abdulhamid) >>-- IORT moved to required from recommended (Hanjun Guo) >>-- Clarify IORT description (Hanjun Guo) >> >> >> Al Stone (1): >> ARM64: ACPI: Update documentation for latest specification version >> >> Documentation/arm64/acpi_object_usage.txt | 343 >> -- >> Documentation/arm64/arm-acpi.txt | 40 ++-- >> 2 files changed, 213 insertions(+), 170 deletions(-) >> > > Ping? If there are no further comments, can this be pulled in through > either the documentation or arm64 tree? > > Thanks. I've read through this - looks good to me. I think it provides useful guidance to reference as we work on getting good ACPI support provided by various platforms under development. Reviewed-by: Roy Franz > > -- > ciao, > al > --- > Al Stone > Software Engineer > Red Hat, Inc. > a...@redhat.com > --- > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
On 04/25/2016 03:21 PM, Al Stone wrote: > The ACPI 6.1 specification was recently released at the end of January > 2016, but the arm64 kernel documentation for the use of ACPI was written > for the 5.1 version of the spec. There were significant additions to the > spec that had not yet been mentioned -- for example, the 6.0 mechanisms > added to make it easier to define processors and low power idle states, > as well as the 6.1 addition allowing regular interrupts (not just from > GPIO) be used to signal ACPI general purpose events. > > This patch reflects going back through and examining the specs in detail > and updating content appropriately. Whilst there, a few odds and ends of > typos were caught as well. This brings the documentation up to date with > ACPI 6.1 for arm64. > > Changes for v5: >-- Miscellaneous typos and corrections (Lorenzo Pieralisi) >-- Add linux-acpi@ ML to the distribution list (Alexey Klimov) >-- Corrections to CPPC information (Alexey Klimov) >-- ACK from Lorenzo Pieralisi >-- Updated bibliographic info (Al Stone) > > Changes for v4: >-- Clarify that IORT can sometimes be optional (Jon Masters). >-- Remove "Use as needed" descriptions of ACPI objects; they provide > no substantive information and doing so simplifies maintenance of > this document over time. These have been replaced with a simpler > notice that states that unless otherwise noted, do what the ACPI > specification says is needed. >-- Corrected the _OSI object usage recommendation; it described kernel > behavior that does not exist (Al Stone). > > Changes for v3: >-- Clarify use of _LPI/_RDI (Vikas Sajjan) >-- Whitespace cleanup as pointed out by checkpatch > > Changes for v2: >-- Clean up white space (Harb Abdulhahmid) >-- Clarification on _CCA usage (Harb Abdulhamid) >-- IORT moved to required from recommended (Hanjun Guo) >-- Clarify IORT description (Hanjun Guo) > > > Al Stone (1): > ARM64: ACPI: Update documentation for latest specification version > > Documentation/arm64/acpi_object_usage.txt | 343 > -- > Documentation/arm64/arm-acpi.txt | 40 ++-- > 2 files changed, 213 insertions(+), 170 deletions(-) > Ping? If there are no further comments, can this be pulled in through either the documentation or arm64 tree? Thanks. -- ciao, al --- Al Stone Software Engineer Red Hat, Inc. a...@redhat.com --- -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
The ACPI 6.1 specification was recently released at the end of January 2016, but the arm64 kernel documentation for the use of ACPI was written for the 5.1 version of the spec. There were significant additions to the spec that had not yet been mentioned -- for example, the 6.0 mechanisms added to make it easier to define processors and low power idle states, as well as the 6.1 addition allowing regular interrupts (not just from GPIO) be used to signal ACPI general purpose events. This patch reflects going back through and examining the specs in detail and updating content appropriately. Whilst there, a few odds and ends of typos were caught as well. This brings the documentation up to date with ACPI 6.1 for arm64. Changes for v5: -- Miscellaneous typos and corrections (Lorenzo Pieralisi) -- Add linux-acpi@ ML to the distribution list (Alexey Klimov) -- Corrections to CPPC information (Alexey Klimov) -- ACK from Lorenzo Pieralisi -- Updated bibliographic info (Al Stone) Changes for v4: -- Clarify that IORT can sometimes be optional (Jon Masters). -- Remove "Use as needed" descriptions of ACPI objects; they provide no substantive information and doing so simplifies maintenance of this document over time. These have been replaced with a simpler notice that states that unless otherwise noted, do what the ACPI specification says is needed. -- Corrected the _OSI object usage recommendation; it described kernel behavior that does not exist (Al Stone). Changes for v3: -- Clarify use of _LPI/_RDI (Vikas Sajjan) -- Whitespace cleanup as pointed out by checkpatch Changes for v2: -- Clean up white space (Harb Abdulhahmid) -- Clarification on _CCA usage (Harb Abdulhamid) -- IORT moved to required from recommended (Hanjun Guo) -- Clarify IORT description (Hanjun Guo) Al Stone (1): ARM64: ACPI: Update documentation for latest specification version Documentation/arm64/acpi_object_usage.txt | 343 -- Documentation/arm64/arm-acpi.txt | 40 ++-- 2 files changed, 213 insertions(+), 170 deletions(-) -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html