[PATCH 06/11] drm/xe: Remove useless mem_access during probe
Rodrigo Vivi
rodrigo.vivi at intel.com
Mon Mar 11 19:22:58 UTC 2024
xe_pm_init is the very last thing during the xe_pci_probe(),
hence these protections are useless from the point of view
of ensuring that the device is awake.
Let's remove it so we continue towards the goal of killing
xe_device_mem_access.
v2: Adding more cases
v3: Provide a separate fix for xe_tile_init_noalloc return (Matt)
Adding a new case where display HDCP init calls which
are also called at display probe time.
Cc: Matthew Auld <matthew.auld at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
drivers/gpu/drm/xe/display/xe_hdcp_gsc.c | 2 --
drivers/gpu/drm/xe/xe_ggtt.c | 2 --
drivers/gpu/drm/xe/xe_gt.c | 9 ---------
drivers/gpu/drm/xe/xe_tile.c | 15 +++++----------
drivers/gpu/drm/xe/xe_uc.c | 11 -----------
5 files changed, 5 insertions(+), 34 deletions(-)
diff --git a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
index a221f0cf4bac..b2bd56a9b76d 100644
--- a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
+++ b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
@@ -70,7 +70,6 @@ static int intel_hdcp_gsc_initialize_message(struct xe_device *xe,
int ret = 0;
/* allocate object of two page for HDCP command memory and store it */
- xe_device_mem_access_get(xe);
bo = xe_bo_create_pin_map(xe, xe_device_get_root_tile(xe), NULL, PAGE_SIZE * 2,
ttm_bo_type_kernel,
XE_BO_CREATE_SYSTEM_BIT |
@@ -90,7 +89,6 @@ static int intel_hdcp_gsc_initialize_message(struct xe_device *xe,
hdcp_message->hdcp_cmd_in = cmd_in;
hdcp_message->hdcp_cmd_out = cmd_out;
out:
- xe_device_mem_access_put(xe);
return ret;
}
diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c
index 325337c38961..0f96b7db6dcc 100644
--- a/drivers/gpu/drm/xe/xe_ggtt.c
+++ b/drivers/gpu/drm/xe/xe_ggtt.c
@@ -206,14 +206,12 @@ static void xe_ggtt_initial_clear(struct xe_ggtt *ggtt)
u64 start, end;
/* Display may have allocated inside ggtt, so be careful with clearing here */
- xe_device_mem_access_get(tile_to_xe(ggtt->tile));
mutex_lock(&ggtt->lock);
drm_mm_for_each_hole(hole, &ggtt->mm, start, end)
xe_ggtt_clear(ggtt, start, end - start);
xe_ggtt_invalidate(ggtt);
mutex_unlock(&ggtt->lock);
- xe_device_mem_access_put(tile_to_xe(ggtt->tile));
}
int xe_ggtt_init(struct xe_ggtt *ggtt)
diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index 85408e7a932b..063b710a8c7b 100644
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -347,7 +347,6 @@ static int gt_fw_domain_init(struct xe_gt *gt)
{
int err, i;
- xe_device_mem_access_get(gt_to_xe(gt));
err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
if (err)
goto err_hw_fence_irq;
@@ -389,7 +388,6 @@ static int gt_fw_domain_init(struct xe_gt *gt)
err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
XE_WARN_ON(err);
- xe_device_mem_access_put(gt_to_xe(gt));
return 0;
@@ -399,7 +397,6 @@ static int gt_fw_domain_init(struct xe_gt *gt)
err_hw_fence_irq:
for (i = 0; i < XE_ENGINE_CLASS_MAX; ++i)
xe_hw_fence_irq_finish(>->fence_irq[i]);
- xe_device_mem_access_put(gt_to_xe(gt));
return err;
}
@@ -408,7 +405,6 @@ static int all_fw_domain_init(struct xe_gt *gt)
{
int err, i;
- xe_device_mem_access_get(gt_to_xe(gt));
err = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
if (err)
goto err_hw_fence_irq;
@@ -474,7 +470,6 @@ static int all_fw_domain_init(struct xe_gt *gt)
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));
return 0;
@@ -483,7 +478,6 @@ static int all_fw_domain_init(struct xe_gt *gt)
err_hw_fence_irq:
for (i = 0; i < XE_ENGINE_CLASS_MAX; ++i)
xe_hw_fence_irq_finish(>->fence_irq[i]);
- xe_device_mem_access_put(gt_to_xe(gt));
return err;
}
@@ -496,7 +490,6 @@ int xe_gt_init_hwconfig(struct xe_gt *gt)
{
int err;
- xe_device_mem_access_get(gt_to_xe(gt));
err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
if (err)
goto out;
@@ -519,8 +512,6 @@ int xe_gt_init_hwconfig(struct xe_gt *gt)
out_fw:
xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
out:
- xe_device_mem_access_put(gt_to_xe(gt));
-
return err;
}
diff --git a/drivers/gpu/drm/xe/xe_tile.c b/drivers/gpu/drm/xe/xe_tile.c
index 0650b2fa75ef..74ecb5f39438 100644
--- a/drivers/gpu/drm/xe/xe_tile.c
+++ b/drivers/gpu/drm/xe/xe_tile.c
@@ -160,24 +160,19 @@ int xe_tile_init_noalloc(struct xe_tile *tile)
{
int err;
- xe_device_mem_access_get(tile_to_xe(tile));
-
err = tile_ttm_mgr_init(tile);
if (err)
- goto err_mem_access;
+ return err;
tile->mem.kernel_bb_pool = xe_sa_bo_manager_init(tile, SZ_1M, 16);
- if (IS_ERR(tile->mem.kernel_bb_pool)) {
- err = PTR_ERR(tile->mem.kernel_bb_pool);
- goto err_mem_access;
- }
+ if (IS_ERR(tile->mem.kernel_bb_pool))
+ return PTR_ERR(tile->mem.kernel_bb_pool);
+
xe_wa_apply_tile_workarounds(tile);
xe_tile_sysfs_init(tile);
-err_mem_access:
- xe_device_mem_access_put(tile_to_xe(tile));
- return err;
+ return 0;
}
void xe_tile_migrate_wait(struct xe_tile *tile)
diff --git a/drivers/gpu/drm/xe/xe_uc.c b/drivers/gpu/drm/xe/xe_uc.c
index 7033f8c1b431..4feb35c95a1c 100644
--- a/drivers/gpu/drm/xe/xe_uc.c
+++ b/drivers/gpu/drm/xe/xe_uc.c
@@ -32,11 +32,8 @@ uc_to_xe(struct xe_uc *uc)
/* Should be called once at driver load only */
int xe_uc_init(struct xe_uc *uc)
{
- struct xe_device *xe = uc_to_xe(uc);
int ret;
- xe_device_mem_access_get(xe);
-
/*
* We call the GuC/HuC/GSC init functions even if GuC submission is off
* to correctly move our tracking of the FW state to "disabled".
@@ -65,16 +62,8 @@ int xe_uc_init(struct xe_uc *uc)
goto err;
ret = xe_guc_db_mgr_init(&uc->guc.dbm, ~0);
- if (ret)
- goto err;
-
- xe_device_mem_access_put(xe);
-
- return 0;
err:
- xe_device_mem_access_put(xe);
-
return ret;
}
--
2.44.0
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