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cxl: Isolate a few bare-metal-specific calls

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A few functions are mostly common between bare-metal and guest and
just need minor tuning. To avoid crowding the backend API, introduce a
few 'if' based on the CPU being in HV mode.

Co-authored-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Frederic Barrat
2016-03-04 12:26:30 +01:00
committed by Michael Ellerman
parent 2b04cf310b
commit ea2d1f95ef
4 changed files with 22 additions and 11 deletions
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7
drivers/misc/cxl/cxl.h
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@@ -560,8 +560,11 @@ static inline bool cxl_adapter_link_ok(struct cxl *cxl)
{
struct pci_dev *pdev;
pdev = to_pci_dev(cxl->dev.parent);
return !pci_channel_offline(pdev);
if (cpu_has_feature(CPU_FTR_HVMODE)) {
pdev = to_pci_dev(cxl->dev.parent);
return !pci_channel_offline(pdev);
}
return true;
}
static inline void __iomem *_cxl_p1_addr(struct cxl *cxl, cxl_p1_reg_t reg)