diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2023-11-28 18:15:05 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 19:45:27 +0300 |
| commit | b1d20405821812ad70d95eefe58cadc6d50b0917 (patch) | |
| tree | d88a9374bc4b2baa1c34a84b3719b8efce709e0c /drivers/gpu/drm/xe/xe_gt.c | |
| parent | 5bcedc9eabdc6ecd7a11f1e6147f0f601d7cdc77 (diff) | |
| download | linux-b1d20405821812ad70d95eefe58cadc6d50b0917.tar.xz | |
drm/xe/pf: Introduce Local Memory Translation Table
The Local Memory Translation Table (LMTT) provides additional
abstraction for Virtual Functions (VF) accessing device VRAM.
This code is based on prior work of Michal Winiarski.
In this patch we focus only on LMTT initialization. Remaining LMTT
functions will be used once we add a VF provisioning to the PF.
Bspec: 44117, 52404, 59314
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://lore.kernel.org/r/20231128151507.1015-4-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c index 154d6c7072b9..6645fa158f09 100644 --- a/drivers/gpu/drm/xe/xe_gt.c +++ b/drivers/gpu/drm/xe/xe_gt.c @@ -36,6 +36,7 @@ #include "xe_hw_fence.h" #include "xe_hw_engine_class_sysfs.h" #include "xe_irq.h" +#include "xe_lmtt.h" #include "xe_lrc.h" #include "xe_map.h" #include "xe_migrate.h" @@ -46,6 +47,7 @@ #include "xe_ring_ops.h" #include "xe_sa.h" #include "xe_sched_job.h" +#include "xe_sriov.h" #include "xe_tuning.h" #include "xe_uc.h" #include "xe_vm.h" @@ -344,6 +346,8 @@ static int gt_fw_domain_init(struct xe_gt *gt) err = xe_ggtt_init(gt_to_tile(gt)->mem.ggtt); if (err) goto err_force_wake; + if (IS_SRIOV_PF(gt_to_xe(gt))) + xe_lmtt_init(>_to_tile(gt)->sriov.pf.lmtt); } err = xe_uc_init(>->uc); @@ -460,6 +464,9 @@ static int all_fw_domain_init(struct xe_gt *gt) xe_gt_apply_ccs_mode(gt); } + if (IS_SRIOV_PF(gt_to_xe(gt)) && !xe_gt_is_media_type(gt)) + xe_lmtt_init_hw(>_to_tile(gt)->sriov.pf.lmtt); + err = xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL); XE_WARN_ON(err); xe_device_mem_access_put(gt_to_xe(gt)); @@ -560,6 +567,9 @@ static int do_gt_restart(struct xe_gt *gt) if (err) return err; + if (IS_SRIOV_PF(gt_to_xe(gt)) && !xe_gt_is_media_type(gt)) + xe_lmtt_init_hw(>_to_tile(gt)->sriov.pf.lmtt); + xe_mocs_init(gt); err = xe_uc_start(>->uc); if (err) |