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(unknown [90.168.160.154]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nanokatze) by bali.collaboradmins.com (Postfix) with ESMTPSA id 272A817E080D; Thu, 3 Jul 2025 22:53:47 +0200 (CEST) From: Caterina Shablia To: "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , "Frank Binns" , "Matt Coster" , "Karol Herbst" , "Lyude Paul" , "Danilo Krummrich" , "Boris Brezillon" , "Steven Price" , "Liviu Dudau" , "Lucas De Marchi" , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , "Rodrigo Vivi" Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, nouveau@lists.freedesktop.org, intel-xe@lists.freedesktop.org, Asahi Lina , Caterina Shablia Subject: [PATCH v3 5/7] drm/gpuvm: Add a flags field to drm_gpuvm_map_req/drm_gpuva_op_map Date: Thu, 3 Jul 2025 20:52:57 +0000 Message-ID: <20250703205308.19419-6-caterina.shablia@collabora.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250703205308.19419-1-caterina.shablia@collabora.com> References: <20250703205308.19419-1-caterina.shablia@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Asahi Lina drm_gpuva objects have a flags field. Currently, this can be managed by drivers out-of-band, without any special handling in drm_gpuvm. To be able to introduce flags that do affect the logic in the drm_gpuvm core, we need to plumb it through the map calls. This will allow the core to check the flags on map and alter the merge/split logic depending on the requested flags and the flags of the existing drm_gpuva ranges that are being split. Signed-off-by: Asahi Lina Signed-off-by: Caterina Shablia --- drivers/gpu/drm/drm_gpuvm.c | 7 +++++++ include/drm/drm_gpuvm.h | 9 +++++++++ 2 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c index 2df04dfcb6ef..a24b6159a0d4 100644 --- a/drivers/gpu/drm/drm_gpuvm.c +++ b/drivers/gpu/drm/drm_gpuvm.c @@ -2063,6 +2063,7 @@ op_map_cb(const struct drm_gpuvm_ops *fn, void *priv, op.map.va.range =3D req->va.range; op.map.gem.obj =3D req->gem.obj; op.map.gem.offset =3D req->gem.offset; + op.map.flags =3D req->flags; =20 return fn->sm_step_map(&op, priv); } @@ -2175,6 +2176,7 @@ __drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, .va.range =3D range - req->va.range, .gem.obj =3D obj, .gem.offset =3D offset + req->va.range, + .flags =3D va->flags, }; struct drm_gpuva_op_unmap u =3D { .va =3D va, @@ -2193,6 +2195,7 @@ __drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, .va.range =3D ls_range, .gem.obj =3D obj, .gem.offset =3D offset, + .flags =3D va->flags, }; struct drm_gpuva_op_unmap u =3D { .va =3D va }; =20 @@ -2219,6 +2222,7 @@ __drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, .gem.obj =3D obj, .gem.offset =3D offset + ls_range + req->va.range, + .flags =3D va->flags, }; =20 ret =3D op_remap_cb(ops, priv, &p, &n, &u); @@ -2247,6 +2251,7 @@ __drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, .va.range =3D end - req_end, .gem.obj =3D obj, .gem.offset =3D offset + req_end - addr, + .flags =3D va->flags, }; struct drm_gpuva_op_unmap u =3D { .va =3D va, @@ -2291,6 +2296,7 @@ __drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm, prev.va.range =3D req_addr - addr; prev.gem.obj =3D obj; prev.gem.offset =3D offset; + prev.flags =3D va->flags; =20 prev_split =3D true; } @@ -2300,6 +2306,7 @@ __drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm, next.va.range =3D end - req_end; next.gem.obj =3D obj; next.gem.offset =3D offset + (req_end - addr); + next.flags =3D va->flags; =20 next_split =3D true; } diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h index a6e6c33fc10b..f77a89e791f1 100644 --- a/include/drm/drm_gpuvm.h +++ b/include/drm/drm_gpuvm.h @@ -847,6 +847,11 @@ struct drm_gpuva_op_map { */ struct drm_gem_object *obj; } gem; + + /** + * @flags: requested flags for the &drm_gpuva for this mapping + */ + enum drm_gpuva_flags flags; }; =20 /** @@ -1074,6 +1079,9 @@ struct drm_gpuvm_map_req { /** @offset: offset in the GEM */ u64 offset; } gem; + + /** @flags: combination of DRM_GPUVA_ flags describing the mapping proper= ties. */ + enum drm_gpuva_flags flags; }; =20 struct drm_gpuva_ops * @@ -1097,6 +1105,7 @@ void drm_gpuva_ops_free(struct drm_gpuvm *gpuvm, static inline void drm_gpuva_init_from_op(struct drm_gpuva *va, struct drm_gpuva_op_map *op) { + va->flags =3D op->flags; va->va.addr =3D op->va.addr; va->va.range =3D op->va.range; va->gem.obj =3D op->gem.obj; --=20 2.47.2