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platform/x86/intel/pmt: telemetry: Fix fixed region handling
Use the telem_type and the fixed block guid to determine if an entry is a fixed region. For certain platforms we don't support this. Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Link: https://lore.kernel.org/r/20220629221334.434307-4-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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1 changed files with 15 additions and 3 deletions
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@ -23,12 +23,19 @@
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#define TELEM_GUID_OFFSET 0x4
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#define TELEM_BASE_OFFSET 0x8
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#define TELEM_ACCESS(v) ((v) & GENMASK(3, 0))
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#define TELEM_TYPE(v) (((v) & GENMASK(7, 4)) >> 4)
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/* size is in bytes */
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#define TELEM_SIZE(v) (((v) & GENMASK(27, 12)) >> 10)
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/* Used by client hardware to identify a fixed telemetry entry*/
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#define TELEM_CLIENT_FIXED_BLOCK_GUID 0x10000000
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enum telem_type {
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TELEM_TYPE_PUNIT = 0,
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TELEM_TYPE_CRASHLOG,
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TELEM_TYPE_PUNIT_FIXED,
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};
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struct pmt_telem_priv {
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int num_entries;
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struct intel_pmt_entry entry[];
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@ -39,10 +46,15 @@ static bool pmt_telem_region_overlaps(struct intel_pmt_entry *entry,
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{
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u32 guid = readl(entry->disc_table + TELEM_GUID_OFFSET);
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if (guid != TELEM_CLIENT_FIXED_BLOCK_GUID)
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return false;
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if (intel_pmt_is_early_client_hw(dev)) {
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u32 type = TELEM_TYPE(readl(entry->disc_table));
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return intel_pmt_is_early_client_hw(dev);
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if ((type == TELEM_TYPE_PUNIT_FIXED) ||
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(guid == TELEM_CLIENT_FIXED_BLOCK_GUID))
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return true;
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}
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return false;
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}
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static int pmt_telem_header_decode(struct intel_pmt_entry *entry,
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