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drm/xe/vf: Don't try Driver-FLR if VF

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Driver-FLR can't be triggered from the VF driver, so treat it
as disabled if VF. While around, fix also the message, as it
shouldn't be printed just 'once' as we may have many devices.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250311135726.1998-2-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko
2025-03-11 14:57:25 +01:00
parent de35cc27fd
commit d3414acf4a
1 changed files with 10 additions and 4 deletions
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14
drivers/gpu/drm/xe/xe_device.c
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@@ -496,7 +496,15 @@ ALLOW_ERROR_INJECTION(xe_device_create, ERRNO); /* See xe_pci_probe() */
static bool xe_driver_flr_disabled(struct xe_device *xe)
{
return xe_mmio_read32(xe_root_tile_mmio(xe), GU_CNTL_PROTECTED) & DRIVERINT_FLR_DIS;
if (IS_SRIOV_VF(xe))
return true;
if (xe_mmio_read32(xe_root_tile_mmio(xe), GU_CNTL_PROTECTED) & DRIVERINT_FLR_DIS) {
drm_info(&xe->drm, "Driver-FLR disabled by BIOS\n");
return true;
}
return false;
}
/*
@@ -560,10 +568,8 @@ static void __xe_driver_flr(struct xe_device *xe)
static void xe_driver_flr(struct xe_device *xe)
{
if (xe_driver_flr_disabled(xe)) {
drm_info_once(&xe->drm, "BIOS Disabled Driver-FLR\n");
if (xe_driver_flr_disabled(xe))
return;
}
__xe_driver_flr(xe);
}