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Previously we mapped this region using atu.cpu_addr, the input address programmed into the ATU. "cpu_addr" is a misnomer because when a bus fabric translates addresses between the CPU and the ATU, the ATU input address is different from the CPU address. A future patch will rename "cpu_addr" and correct the value to be the ATU input address instead of the CPU physical address. Map the msg_res region before writing to it using the msg_res resource start, a CPU physical address. Signed-off-by: Frank Li --- change from v9 to v10 - use bjorn's suggested commit messaage. change from v8 to v9 - new patch --- drivers/pci/controller/dwc/pcie-designware-host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index ffaded8f2df7b..ae3fd2a5dbf85 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -908,7 +908,7 @@ static int dw_pcie_pme_turn_off(struct dw_pcie *pci) if (ret) return ret; - mem = ioremap(atu.cpu_addr, pci->region_align); + mem = ioremap(pci->pp.msg_res->start, pci->region_align); if (!mem) return -ENOMEM; -- 2.34.1