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platform/x86/intel/pmc: Show Die C6 counter on Meteor Lake

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Expose the Die C6 counter on Meteor Lake.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231129222132.2331261-21-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
David E. Box 2023-11-29 14:21:32 -08:00 • committed by Hans de Goede
parent 3621df43b0
commit 6e79648553
1 changed files with 32 additions and 0 deletions
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32
drivers/platform/x86/intel/pmc/mtl.c
View file

@ -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.