diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_sriov_pf.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_sriov_pf.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf.c index 791dcdd767e2..9dbba9ab7a9a 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf.c @@ -5,8 +5,13 @@ #include <drm/drm_managed.h> +#include "regs/xe_sriov_regs.h" + #include "xe_gt_sriov_pf.h" +#include "xe_gt_sriov_pf_config.h" #include "xe_gt_sriov_pf_helpers.h" +#include "xe_gt_sriov_pf_service.h" +#include "xe_mmio.h" /* * VF's metadata is maintained in the flexible array where: @@ -48,5 +53,44 @@ int xe_gt_sriov_pf_init_early(struct xe_gt *gt) if (err) return err; + err = xe_gt_sriov_pf_service_init(gt); + if (err) + return err; + return 0; } + +static bool pf_needs_enable_ggtt_guest_update(struct xe_device *xe) +{ + return GRAPHICS_VERx100(xe) == 1200; +} + +static void pf_enable_ggtt_guest_update(struct xe_gt *gt) +{ + xe_mmio_write32(gt, VIRTUAL_CTRL_REG, GUEST_GTT_UPDATE_EN); +} + +/** + * xe_gt_sriov_pf_init_hw - Initialize SR-IOV hardware support. + * @gt: the &xe_gt to initialize + * + * On some platforms the PF must explicitly enable VF's access to the GGTT. + */ +void xe_gt_sriov_pf_init_hw(struct xe_gt *gt) +{ + if (pf_needs_enable_ggtt_guest_update(gt_to_xe(gt))) + pf_enable_ggtt_guest_update(gt); + + xe_gt_sriov_pf_service_update(gt); +} + +/** + * xe_gt_sriov_pf_restart - Restart SR-IOV support after a GT reset. + * @gt: the &xe_gt + * + * This function can only be called on PF. + */ +void xe_gt_sriov_pf_restart(struct xe_gt *gt) +{ + xe_gt_sriov_pf_config_restart(gt); +} |