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Box" To: irenic.rajneesh@gmail.com, ilpo.jarvinen@linux.intel.com, srinivas.pandruvada@linux.intel.com, xi.pardee@linux.intel.com, david.e.box@linux.intel.com Cc: hansg@kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH V3 02/16] platform/x86/intel/pmt/crashlog: Split init into pre-decode Date: Fri, 1 May 2026 16:10:39 -0700 Message-ID: <20260501231054.3890305-3-david.e.box@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260501231054.3890305-1-david.e.box@linux.intel.com> References: <20260501231054.3890305-1-david.e.box@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Refactor crashlog initialization to use the PMT namespace pre-decode hook: - Add pmt_crashlog_pre_decode() to parse type/version, select the crashlog_info, initialize the control mutex, and set entry->attr_grp. - Simplify pmt_crashlog_header_decode() to only read header fields from the discovery table. - Wire the namespace with .pmt_pre_decode =3D pmt_crashlog_pre_decode. This separates structural initialization from header parsing, aligning crashlog with the PMT class pre/post decode flow. Signed-off-by: David E. Box Reviewed-by: Ilpo J=C3=A4rvinen --- V3 - No changes V2 - No changes drivers/platform/x86/intel/pmt/crashlog.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/platform/x86/intel/pmt/crashlog.c b/drivers/platform/x= 86/intel/pmt/crashlog.c index b0393c9c5b4b..f936daf99e4d 100644 --- a/drivers/platform/x86/intel/pmt/crashlog.c +++ b/drivers/platform/x86/intel/pmt/crashlog.c @@ -496,11 +496,9 @@ static const struct crashlog_info *select_crashlog_inf= o(u32 type, u32 version) return &crashlog_type1_ver2; } =20 -static int pmt_crashlog_header_decode(struct intel_pmt_entry *entry, - struct device *dev) +static int pmt_crashlog_pre_decode(struct intel_vsec_device *ivdev, + struct intel_pmt_entry *entry) { - void __iomem *disc_table =3D entry->disc_table; - struct intel_pmt_header *header =3D &entry->header; struct crashlog_entry *crashlog; u32 version; u32 type; @@ -513,6 +511,16 @@ static int pmt_crashlog_header_decode(struct intel_pmt= _entry *entry, mutex_init(&crashlog->control_mutex); =20 crashlog->info =3D select_crashlog_info(type, version); + entry->attr_grp =3D crashlog->info->attr_grp; + + return 0; +} + +static int pmt_crashlog_header_decode(struct intel_pmt_entry *entry, + struct device *dev) +{ + void __iomem *disc_table =3D entry->disc_table; + struct intel_pmt_header *header =3D &entry->header; =20 header->access_type =3D GET_ACCESS(readl(disc_table)); header->guid =3D readl(disc_table + GUID_OFFSET); @@ -521,8 +529,6 @@ static int pmt_crashlog_header_decode(struct intel_pmt_= entry *entry, /* Size is measured in DWORDS, but accessor returns bytes */ header->size =3D GET_SIZE(readl(disc_table + SIZE_OFFSET)); =20 - entry->attr_grp =3D crashlog->info->attr_grp; - return 0; } =20 @@ -530,6 +536,7 @@ static DEFINE_XARRAY_ALLOC(crashlog_array); static struct intel_pmt_namespace pmt_crashlog_ns =3D { .name =3D "crashlog", .xa =3D &crashlog_array, + .pmt_pre_decode =3D pmt_crashlog_pre_decode, .pmt_header_decode =3D pmt_crashlog_header_decode, }; =20 --=20 2.43.0