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From: Maarten Lankhorst <dev@lankhorst.se>
To: intel-xe@lists.freedesktop.org
Cc: Maarten Lankhorst <dev@lankhorst.se>
Subject: [PATCH v6 06/12] drm/xe: Improve xe_gt_sriov_pf_config GGTT handling
Date: Tue, 14 Oct 2025 23:20:03 +0200	[thread overview]
Message-ID: <20251014211956.1607561-20-dev@lankhorst.se> (raw)
In-Reply-To: <20251014211956.1607561-14-dev@lankhorst.se>

Do not directly dereference xe_ggtt_node, and add
a member to store the GGTT size.

Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
---
 drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c       | 15 ++++++++-------
 drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h |  8 ++++++--
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
index 2289756761636..c0dfffd5c553b 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
@@ -264,7 +264,7 @@ static u32 encode_config_ggtt(u32 *cfg, const struct xe_gt_sriov_config *config,
 	if (!xe_ggtt_node_allocated(node))
 		return 0;
 
-	return encode_ggtt(cfg, node->base.start, node->base.size, details);
+	return encode_ggtt(cfg, xe_ggtt_node_addr(node), config->ggtt_size, details);
 }
 
 /* Return: number of configuration dwords written */
@@ -495,13 +495,14 @@ static int pf_provision_vf_ggtt(struct xe_gt *gt, unsigned int vfid, u64 size)
 
 	xe_ggtt_assign(node, vfid);
 	xe_gt_sriov_dbg_verbose(gt, "VF%u assigned GGTT %llx-%llx\n",
-				vfid, node->base.start, node->base.start + node->base.size - 1);
+				vfid, xe_ggtt_node_addr(node), xe_ggtt_node_addr(node) + size - 1);
 
-	err = pf_distribute_config_ggtt(gt->tile, vfid, node->base.start, node->base.size);
+	err = pf_distribute_config_ggtt(gt->tile, vfid, xe_ggtt_node_addr(node), size);
 	if (unlikely(err))
 		goto err;
 
 	config->ggtt_region = node;
+	config->ggtt_size = size;
 	return 0;
 err:
 	pf_release_ggtt(tile, node);
@@ -514,7 +515,7 @@ static u64 pf_get_vf_config_ggtt(struct xe_gt *gt, unsigned int vfid)
 	struct xe_ggtt_node *node = config->ggtt_region;
 
 	xe_gt_assert(gt, xe_gt_is_main_type(gt));
-	return xe_ggtt_node_allocated(node) ? node->base.size : 0;
+	return xe_ggtt_node_allocated(node) ? config->ggtt_size : 0;
 }
 
 /**
@@ -2516,11 +2517,11 @@ int xe_gt_sriov_pf_config_print_ggtt(struct xe_gt *gt, struct drm_printer *p)
 		if (!xe_ggtt_node_allocated(config->ggtt_region))
 			continue;
 
-		string_get_size(config->ggtt_region->base.size, 1, STRING_UNITS_2,
+		string_get_size(config->ggtt_size, 1, STRING_UNITS_2,
 				buf, sizeof(buf));
 		drm_printf(p, "VF%u:\t%#0llx-%#llx\t(%s)\n",
-			   n, config->ggtt_region->base.start,
-			   config->ggtt_region->base.start + config->ggtt_region->base.size - 1,
+			   n, xe_ggtt_node_addr(config->ggtt_region),
+			   xe_ggtt_node_addr(config->ggtt_region) + config->ggtt_size - 1,
 			   buf);
 	}
 
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h
index 686c7b3b6d7a5..9a8e66c8b539f 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h
@@ -17,10 +17,14 @@ struct xe_bo;
  * Used by the PF driver to maintain per-VF provisioning data.
  */
 struct xe_gt_sriov_config {
-	/** @ggtt_region: GGTT region assigned to the VF. */
-	struct xe_ggtt_node *ggtt_region;
 	/** @lmem_obj: LMEM allocation for use by the VF. */
 	struct xe_bo *lmem_obj;
+
+	/** @ggtt_region: GGTT region assigned to the VF. */
+	struct xe_ggtt_node *ggtt_region;
+	/** @ggtt_size: Size of GGTT region */
+	u64 ggtt_size;
+
 	/** @num_ctxs: number of GuC contexts IDs.  */
 	u16 num_ctxs;
 	/** @begin_ctx: start index of GuC context ID range. */
-- 
2.51.0


  parent reply	other threads:[~2025-10-14 21:20 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-14 21:19 [PATCH v6 00/12] drm/xe: Make all xe_ggtt structs private Maarten Lankhorst
2025-10-14 21:19 ` [PATCH v6 01/12] drm/xe: Start using ggtt->start in preparation of balloon removal Maarten Lankhorst
2025-10-14 21:19 ` [PATCH v6 02/12] drm/xe: Convert xe_fb_pin to use a callback for insertion into GGTT Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 03/12] drm/xe: Add xe_ggtt_node_addr() to avoid dereferencing xe_ggtt_node Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 04/12] drm/xe/display: Avoid " Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 05/12] drm/xe: Do not dereference ggtt_node in xe_bo.c Maarten Lankhorst
2025-10-14 21:20 ` Maarten Lankhorst [this message]
2025-10-15 18:53   ` [PATCH v6 06/12] drm/xe: Improve xe_gt_sriov_pf_config GGTT handling Michal Wajdeczko
2025-10-14 21:20 ` [PATCH v6 07/12] drm/xe: Privatize xe_ggtt_node Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 08/12] drm/xe: Make xe_ggtt_node offset relative to starting offset Maarten Lankhorst
2025-10-15 19:37   ` Michal Wajdeczko
2025-10-14 21:20 ` [PATCH v6 09/12] drm/xe: Rewrite GGTT VF initialisation Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 10/12] drm/xe: Move struct xe_ggtt to xe_ggtt.c Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 11/12] drm/xe: Make xe_ggtt_node_insert return a node Maarten Lankhorst
2025-10-14 21:20 ` [PATCH v6 12/12] drm/xe: Remove xe_ggtt_node_allocated Maarten Lankhorst

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