Commit aaad0e2a authored by Zhenyu Wang's avatar Zhenyu Wang Committed by Peter Zijlstra

perf/x86/intel/uncore: Use D0:F0 as a default device

Some uncore PMON registers are located in the MMIO space of the Host
Bridge and DRAM Controller device, which is located at D0:F0 for
Tiger Lake and later client generation.

Use D0:F0 as a default device. So it doesn't need to keep adding the
complete Device ID list for each generation anymore.
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarKan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20240731141353.759643-5-kan.liang@linux.intel.com
parent 9ac57c45
......@@ -1504,6 +1504,10 @@ static struct pci_dev *tgl_uncore_get_mc_dev(void)
ids++;
}
/* Just try to grab 00:00.0 device */
if (!mc_dev)
mc_dev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
return mc_dev;
}
......
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