diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_mcr.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_mcr.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_mcr.c b/drivers/gpu/drm/xe/xe_gt_mcr.c index 8546cd3cc50d..a7ab9ba645f9 100644 --- a/drivers/gpu/drm/xe/xe_gt_mcr.c +++ b/drivers/gpu/drm/xe/xe_gt_mcr.c @@ -10,6 +10,7 @@ #include "xe_gt_topology.h" #include "xe_gt_types.h" #include "xe_mmio.h" +#include "xe_sriov.h" /** * DOC: GT Multicast/Replicated (MCR) Register Support @@ -38,6 +39,8 @@ * ``init_steering_*()`` functions is to apply the platform-specific rules for * each MCR register type to identify a steering target that will select a * non-terminated instance. + * + * MCR registers are not available on Virtual Function (VF). */ #define STEER_SEMAPHORE XE_REG(0xFD0) @@ -352,6 +355,9 @@ void xe_gt_mcr_init(struct xe_gt *gt) BUILD_BUG_ON(IMPLICIT_STEERING + 1 != NUM_STEERING_TYPES); BUILD_BUG_ON(ARRAY_SIZE(xe_steering_types) != NUM_STEERING_TYPES); + if (IS_SRIOV_VF(xe)) + return; + spin_lock_init(>->mcr_lock); if (gt->info.type == XE_GT_TYPE_MEDIA) { @@ -405,6 +411,9 @@ void xe_gt_mcr_set_implicit_defaults(struct xe_gt *gt) { struct xe_device *xe = gt_to_xe(gt); + if (IS_SRIOV_VF(xe)) + return; + if (xe->info.platform == XE_DG2) { u32 steer_val = REG_FIELD_PREP(MCR_SLICE_MASK, 0) | REG_FIELD_PREP(MCR_SUBSLICE_MASK, 2); @@ -588,6 +597,8 @@ u32 xe_gt_mcr_unicast_read_any(struct xe_gt *gt, struct xe_reg_mcr reg_mcr) u32 val; bool steer; + xe_gt_assert(gt, !IS_SRIOV_VF(gt_to_xe(gt))); + steer = xe_gt_mcr_get_nonterminated_steering(gt, reg_mcr, &group, &instance); @@ -619,6 +630,8 @@ u32 xe_gt_mcr_unicast_read(struct xe_gt *gt, { u32 val; + xe_gt_assert(gt, !IS_SRIOV_VF(gt_to_xe(gt))); + mcr_lock(gt); val = rw_with_mcr_steering(gt, reg_mcr, MCR_OP_READ, group, instance, 0); mcr_unlock(gt); @@ -640,6 +653,8 @@ u32 xe_gt_mcr_unicast_read(struct xe_gt *gt, void xe_gt_mcr_unicast_write(struct xe_gt *gt, struct xe_reg_mcr reg_mcr, u32 value, int group, int instance) { + xe_gt_assert(gt, !IS_SRIOV_VF(gt_to_xe(gt))); + mcr_lock(gt); rw_with_mcr_steering(gt, reg_mcr, MCR_OP_WRITE, group, instance, value); mcr_unlock(gt); @@ -658,6 +673,8 @@ void xe_gt_mcr_multicast_write(struct xe_gt *gt, struct xe_reg_mcr reg_mcr, { struct xe_reg reg = to_xe_reg(reg_mcr); + xe_gt_assert(gt, !IS_SRIOV_VF(gt_to_xe(gt))); + /* * Synchronize with any unicast operations. Once we have exclusive * access, the MULTICAST bit should already be set, so there's no need |