From: "David E. Box" <david.e.box@linux.intel.com>
To: linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
ilpo.jarvinen@linux.intel.com, rajvi.jingar@linux.intel.com
Subject: [PATCH V3 16/16] platform/x86/intel/pmc: Show Die C6 counter on Meteor Lake
Date: Wed, 11 Oct 2023 19:38:40 -0700 [thread overview]
Message-ID: <20231012023840.3845703-17-david.e.box@linux.intel.com> (raw)
In-Reply-To: <20231012023840.3845703-1-david.e.box@linux.intel.com>
Expose the Die C6 counter on Meteor Lake.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
---
V3 - Split PATCH V2 13. Separates implementation (previous patch)
from platform specific use (this patch)
drivers/platform/x86/intel/pmc/mtl.c | 32 ++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index 7ceeae507f4c..38c2f946ec23 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -10,12 +10,17 @@
#include <linux/pci.h>
#include "core.h"
+#include "../pmt/telemetry.h"
/* PMC SSRAM PMT Telemetry GUIDS */
#define SOCP_LPM_REQ_GUID 0x2625030
#define IOEM_LPM_REQ_GUID 0x4357464
#define IOEP_LPM_REQ_GUID 0x5077612
+/* Die C6 from PUNIT telemetry */
+#define MTL_PMT_DMU_DIE_C6_OFFSET 15
+#define MTL_PMT_DMU_GUID 0x1A067102
+
static const u8 MTL_LPM_REG_INDEX[] = {0, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20};
/*
@@ -968,6 +973,32 @@ static struct pmc_info mtl_pmc_info_list[] = {
{}
};
+static void mtl_punit_pmt_init(struct pmc_dev *pmcdev)
+{
+ struct telem_endpoint *ep;
+ struct pci_dev *pcidev;
+
+ pcidev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(10, 0));
+ if (!pcidev) {
+ dev_err(&pmcdev->pdev->dev, "PUNIT PMT device not found.\n");
+ return;
+ }
+
+ ep = pmt_telem_find_and_register_endpoint(pcidev, MTL_PMT_DMU_GUID, 0);
+ if (IS_ERR(ep)) {
+ dev_err(&pmcdev->pdev->dev,
+ "pmc_core: couldn't get DMU telem endpoint, %ld\n",
+ PTR_ERR(ep));
+ return;
+ }
+
+ pci_dev_put(pcidev);
+ pmcdev->punit_ep = ep;
+
+ pmcdev->has_die_c6 = true;
+ pmcdev->die_c6_offset = MTL_PMT_DMU_DIE_C6_OFFSET;
+}
+
#define MTL_GNA_PCI_DEV 0x7e4c
#define MTL_IPU_PCI_DEV 0x7d19
#define MTL_VPU_PCI_DEV 0x7d1d
@@ -1032,6 +1063,7 @@ int mtl_core_init(struct pmc_dev *pmcdev)
}
pmc_core_get_low_power_modes(pmcdev);
+ mtl_punit_pmt_init(pmcdev);
/* Due to a hardware limitation, the GBE LTR blocks PC10
* when a cable is attached. Tell the PMC to ignore it.
--
2.34.1
prev parent reply other threads:[~2023-10-12 2:39 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-12 2:38 [PATCH V3 00/16] intel_pmc: Add telemetry API to read counters David E. Box
2023-10-12 2:38 ` [PATCH V3 01/16] platform/x86/intel/vsec: Move structures to header David E. Box
2023-10-12 2:38 ` [PATCH V3 02/16] platform/x86/intel/vsec: remove platform_info from vsec device structure David E. Box
2023-10-12 15:31 ` Ilpo Järvinen
2023-10-12 16:55 ` David E. Box
2023-10-12 2:38 ` [PATCH V3 03/16] platform/x86/intel/vsec: Use cleanup.h David E. Box
2023-10-12 5:25 ` kernel test robot
2023-10-12 17:23 ` David E. Box
2023-10-13 10:39 ` Ilpo Järvinen
2023-10-13 18:14 ` Joe Perches
2023-10-24 5:15 ` Joe Perches
2023-10-12 5:48 ` kernel test robot
2023-10-12 14:46 ` Ilpo Järvinen
2023-10-12 17:13 ` David E. Box
2023-10-13 10:54 ` Ilpo Järvinen
2023-10-13 22:16 ` David E. Box
2023-10-16 12:02 ` Ilpo Järvinen
2023-10-12 2:38 ` [PATCH V3 04/16] platform/x86/intel/vsec: Add intel_vsec_register David E. Box
2023-10-12 2:38 ` [PATCH V3 05/16] platform/x86/intel/vsec: Add base address field David E. Box
2023-10-12 2:38 ` [PATCH V3 06/16] platform/x86/intel/pmt: Add header to struct intel_pmt_entry David E. Box
2023-10-12 2:38 ` [PATCH V3 07/16] platform/x86/intel/pmt: telemetry: Export API to read telemetry David E. Box
2023-10-12 2:38 ` [PATCH V3 08/16] platform/x86:intel/pmc: Call pmc_get_low_power_modes from platform init David E. Box
2023-10-12 2:38 ` [PATCH V3 09/16] platform/x86/intel/pmc: Allow pmc_core_ssram_init to fail David E. Box
2023-10-12 15:01 ` Ilpo Järvinen
2023-10-12 17:52 ` David E. Box
2023-10-13 11:36 ` Ilpo Järvinen
2023-10-12 2:38 ` [PATCH V3 10/16] platform/x86/intel/pmc: Split pmc_core_ssram_get_pmc() David E. Box
2023-10-12 15:14 ` Ilpo Järvinen
2023-10-12 17:28 ` David E. Box
2023-10-12 2:38 ` [PATCH V3 11/16] platform/x86/intel/pmc: Find and register PMC telemetry entries David E. Box
2023-10-12 15:17 ` Ilpo Järvinen
2023-10-12 2:38 ` [PATCH V3 12/16] platform/x86/intel/pmc: Display LPM requirements for multiple PMCs David E. Box
2023-10-12 2:38 ` [PATCH V3 13/16] platform/x86/intel/pmc: Retrieve LPM information using Intel PMT David E. Box
2023-10-12 2:38 ` [PATCH V3 14/16] platform/x86/intel/pmc: Read low power mode requirements for MTL-M and MTL-P David E. Box
2023-10-12 2:38 ` [PATCH V3 15/16] platform/x86/intel/pmc: Add debug attribute for Die C6 counter David E. Box
2023-10-12 2:38 ` David E. Box [this message]
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