platform/x86: intel_pmc_core: Include Reserved IP for LTR

Recently introduced commit "platform/x86: intel_pmc_core: Show Latency
Tolerance info <51337cd94d18184601ac0fb4cf1a02b8bbabc3d7> skipped the
LTR from a reserved IP. Though this doesn't cause any functional issue
but it is needed for the consumers of "ltr_ignore" as the index printing
for "ltr_show" is missing. For example, w/o this change, a user that wants
to ignore LTR from ME would do something like

echo 5 > ltr_ignore

but the index for ME is 6. Printing a reserved IP helps to properly
calculate LTR ignore offsets.

Cc: "David E. Box" <david.e.box@intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index 125461c..835ed6d 100644 (file)
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -108,6 +108,7 @@ static const struct pmc_bit_map spt_ltr_show_map[] = {
        {"SATA",                SPT_PMC_LTR_SATA},
        {"GIGABIT_ETHERNET",    SPT_PMC_LTR_GBE},
        {"XHCI",                SPT_PMC_LTR_XHCI},
+       {"Reserved",            SPT_PMC_LTR_RESERVED},
        {"ME",                  SPT_PMC_LTR_ME},
        /* EVA is Enterprise Value Add, doesn't really exist on PCH */
        {"EVA",                 SPT_PMC_LTR_EVA},
@@ -276,6 +277,7 @@ static const struct pmc_bit_map cnp_ltr_show_map[] = {
        {"SATA",                CNP_PMC_LTR_SATA},
        {"GIGABIT_ETHERNET",    CNP_PMC_LTR_GBE},
        {"XHCI",                CNP_PMC_LTR_XHCI},
+       {"Reserved",            CNP_PMC_LTR_RESERVED},
        {"ME",                  CNP_PMC_LTR_ME},
        /* EVA is Enterprise Value Add, doesn't really exist on PCH */
        {"EVA",                 CNP_PMC_LTR_EVA},

diff --git a/drivers/platform/x86/intel_pmc_core.h b/drivers/platform/x86/intel_pmc_core.h
index 1a0104d..0680ca3 100644 (file)
--- a/drivers/platform/x86/intel_pmc_core.h
+++ b/drivers/platform/x86/intel_pmc_core.h
@@ -46,6 +46,7 @@
 #define SPT_PMC_LTR_SATA                       0x368
 #define SPT_PMC_LTR_GBE                                0x36C
 #define SPT_PMC_LTR_XHCI                       0x370
+#define SPT_PMC_LTR_RESERVED                   0x374
 #define SPT_PMC_LTR_ME                         0x378
 #define SPT_PMC_LTR_EVA                                0x37C
 #define SPT_PMC_LTR_SPC                                0x380
@@ -156,6 +157,7 @@ enum ppfear_regs {
 #define CNP_PMC_LTR_SATA                       0x1B68
 #define CNP_PMC_LTR_GBE                                0x1B6C
 #define CNP_PMC_LTR_XHCI                       0x1B70
+#define CNP_PMC_LTR_RESERVED                   0x1B74
 #define CNP_PMC_LTR_ME                         0x1B78
 #define CNP_PMC_LTR_EVA                                0x1B7C
 #define CNP_PMC_LTR_SPC                                0x1B80