diff options
| author | Frederic Barrat <fbarrat@linux.vnet.ibm.com> | 2016-03-04 12:26:30 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-03-09 13:05:47 +1100 |
| commit | ea2d1f95efd7c100617235918bac370414aec1ad (patch) | |
| tree | 5382eaa83971ba74c3f28e7d0900c7cf0b7b7b01 /drivers/misc/cxl/cxl.h | |
| parent | 2b04cf310ba8c123e9957cfab80274e7606bf53c (diff) | |
| download | lwn-ea2d1f95efd7c100617235918bac370414aec1ad.tar.gz lwn-ea2d1f95efd7c100617235918bac370414aec1ad.zip | |
cxl: Isolate a few bare-metal-specific calls
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>
Diffstat (limited to 'drivers/misc/cxl/cxl.h')
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 02065b4defa2..40f67838dd6d 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -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) |