From: Maarten Lankhorst <dev@lankhorst.se>
To: intel-xe@lists.freedesktop.org
Cc: Maarten Lankhorst <dev@lankhorst.se>, Matthew.brost@intel.com
Subject: [PATCH 6/7] drm/xe: Improve xe_gt_sriov_pf_config GGTT handling
Date: Tue, 21 Oct 2025 14:18:20 +0200 [thread overview]
Message-ID: <20251021121814.2193153-15-dev@lankhorst.se> (raw)
In-Reply-To: <20251021121814.2193153-9-dev@lankhorst.se>
Do not directly dereference xe_ggtt_node, and add
a function to retrieve the allocated GGTT size.
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
Reviewed-by: <Matthew.brost@intel.com>
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
---
drivers/gpu/drm/xe/xe_ggtt.c | 11 +++++++++++
drivers/gpu/drm/xe/xe_ggtt.h | 1 +
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c | 15 ++++++++-------
3 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c
index 05515037e2d6a..81038d94b497d 100644
--- a/drivers/gpu/drm/xe/xe_ggtt.c
+++ b/drivers/gpu/drm/xe/xe_ggtt.c
@@ -1090,3 +1090,14 @@ u64 xe_ggtt_node_addr(const struct xe_ggtt_node *node)
{
return node->base.start;
}
+
+/**
+ * xe_ggtt_node_size - Get @node allocation size.
+ * @node: &xe_ggtt_node
+ *
+ * Get the allocated node's size.
+ */
+u64 xe_ggtt_node_size(const struct xe_ggtt_node *node)
+{
+ return node->base.size;
+}
diff --git a/drivers/gpu/drm/xe/xe_ggtt.h b/drivers/gpu/drm/xe/xe_ggtt.h
index 4a8ef1b824156..b69f05a6adbf8 100644
--- a/drivers/gpu/drm/xe/xe_ggtt.h
+++ b/drivers/gpu/drm/xe/xe_ggtt.h
@@ -59,5 +59,6 @@ u64 xe_ggtt_encode_pte_flags(struct xe_ggtt *ggtt, struct xe_bo *bo, u16 pat_ind
u64 xe_ggtt_read_pte(struct xe_ggtt *ggtt, u64 offset);
u64 xe_ggtt_node_addr(const struct xe_ggtt_node *node);
+u64 xe_ggtt_node_size(const struct xe_ggtt_node *node);
#endif
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 f96f96425c2ec..19d1013d0c4c8 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), xe_ggtt_node_size(node), details);
}
/* Return: number of configuration dwords written */
@@ -495,9 +495,9 @@ 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;
@@ -514,7 +514,7 @@ 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) ? xe_ggtt_node_size(node) : 0;
}
/**
@@ -2517,11 +2517,12 @@ 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(xe_ggtt_node_size(config->ggtt_region), 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) +
+ xe_ggtt_node_size(config->ggtt_region) - 1,
buf);
}
--
2.51.0
next prev parent reply other threads:[~2025-10-21 12:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-21 12:18 [PATCH 0/7] drm/xe: Privatize struct xe_ggtt_node Maarten Lankhorst
2025-10-21 12:18 ` [PATCH 1/7] drm/xe: Start using ggtt->start in preparation of balloon removal Maarten Lankhorst
2025-10-21 12:18 ` [PATCH 2/7] drm/xe: Convert xe_fb_pin to use a callback for insertion into GGTT Maarten Lankhorst
2025-10-21 12:18 ` [PATCH 3/7] drm/xe: Add xe_ggtt_node_addr() to avoid dereferencing xe_ggtt_node Maarten Lankhorst
2025-10-21 13:15 ` Michal Wajdeczko
2025-10-21 13:48 ` Maarten Lankhorst
2025-10-21 12:18 ` [PATCH 4/7] drm/xe/display: Avoid " Maarten Lankhorst
2025-10-21 12:18 ` [PATCH 5/7] drm/xe: Do not dereference ggtt_node in xe_bo.c Maarten Lankhorst
2025-10-21 12:18 ` Maarten Lankhorst [this message]
2025-10-21 12:46 ` [PATCH 6/7] drm/xe: Improve xe_gt_sriov_pf_config GGTT handling Michal Wajdeczko
2025-10-21 12:18 ` [PATCH 7/7] drm/xe: Privatize xe_ggtt_node Maarten Lankhorst
2025-10-21 13:49 ` ✗ CI.checkpatch: warning for drm/xe: Privatize struct xe_ggtt_node Patchwork
2025-10-21 13:50 ` ✗ CI.KUnit: failure " Patchwork
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