From: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
To: <dri-devel@lists.freedesktop.org>,
<amd-gfx@lists.freedesktop.org>,
<intel-gfx@lists.freedesktop.org>,
<nouveau@lists.freedesktop.org>
Cc: alexander.deucher@amd.com,
Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>,
luben.tuikov@amd.com, christian.koenig@amd.com,
matthew.auld@intel.com
Subject: [PATCH v2 4/6] drm/i915: Implement intersect/compatible functions
Date: Mon, 25 Jul 2022 04:42:38 -0700 [thread overview]
Message-ID: <20220725114240.4844-4-Arunpravin.PaneerSelvam@amd.com> (raw)
In-Reply-To: <20220725114240.4844-1-Arunpravin.PaneerSelvam@amd.com>
Implemented a new intersect and compatible callback function
fetching start offset from drm buddy allocator.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
---
drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index a5109548abc0..b5801c05bd41 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -178,6 +178,47 @@ static void i915_ttm_buddy_man_free(struct ttm_resource_manager *man,
kfree(bman_res);
}
+static bool i915_ttm_buddy_man_intersect(struct ttm_resource_manager *man,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size)
+{
+ struct i915_ttm_buddy_resource *bman_res = to_ttm_buddy_resource(res);
+ u32 start, num_pages = PFN_UP(size);
+ struct drm_buddy_block *block;
+
+ /* Check each drm buddy block individually */
+ list_for_each_entry(block, &bman_res->blocks, link) {
+ start = drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ /* Don't evict BOs outside of the requested placement range */
+ if (place->fpfn >= (start + num_pages) ||
+ (place->lpfn && place->lpfn <= start))
+ return false;
+ }
+
+ return true;
+}
+
+static bool i915_ttm_buddy_man_compatible(struct ttm_resource_manager *man,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size)
+{
+ struct i915_ttm_buddy_resource *bman_res = to_ttm_buddy_resource(res);
+ u32 start, num_pages = PFN_UP(size);
+ struct drm_buddy_block *block;
+
+ /* Check each drm buddy block individually */
+ list_for_each_entry(block, &bman_res->blocks, link) {
+ start = drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ if (start < place->fpfn ||
+ (place->lpfn && (start + num_pages) > place->lpfn))
+ return false;
+ }
+
+ return true;
+}
+
static void i915_ttm_buddy_man_debug(struct ttm_resource_manager *man,
struct drm_printer *printer)
{
@@ -205,6 +246,8 @@ static void i915_ttm_buddy_man_debug(struct ttm_resource_manager *man,
static const struct ttm_resource_manager_func i915_ttm_buddy_manager_func = {
.alloc = i915_ttm_buddy_man_alloc,
.free = i915_ttm_buddy_man_free,
+ .intersect = i915_ttm_buddy_man_intersect,
+ .compatible = i915_ttm_buddy_man_compatible,
.debug = i915_ttm_buddy_man_debug,
};
--
2.25.1
next prev parent reply other threads:[~2022-07-25 11:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-25 11:42 [PATCH v2 1/6] drm/ttm: Add new callbacks to ttm res mgr Arunpravin Paneer Selvam
2022-07-25 11:42 ` [PATCH v2 2/6] drm/ttm: Implement intersect/compatible functions Arunpravin Paneer Selvam
2022-08-08 11:30 ` Christian König
2022-08-09 8:26 ` Arunpravin Paneer Selvam
2022-07-25 11:42 ` [PATCH v2 3/6] drm/amdgpu: " Arunpravin Paneer Selvam
2022-07-25 11:42 ` Arunpravin Paneer Selvam [this message]
2022-07-26 10:41 ` [PATCH v2 4/6] drm/i915: " Matthew Auld
2022-07-28 14:36 ` Arunpravin Paneer Selvam
2022-07-25 11:42 ` [PATCH v2 5/6] drm/nouveau: " Arunpravin Paneer Selvam
2022-07-25 11:42 ` [PATCH v2 6/6] drm/ttm: Switch to using the new res callback Arunpravin Paneer Selvam
2022-08-08 11:28 ` [PATCH v2 1/6] drm/ttm: Add new callbacks to ttm res mgr Christian König
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