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[73.37.105.206]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a4f471b16asm9657791a91.9.2026.10.02.08.29.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Oct 2026 08:29:53 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Jianfeng Liu , =?UTF-8?q?Christian=20K=C3=B6nig?= , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 1/6] drm/msm/gem: Add helper to check if resident Date: Fri, 2 Oct 2026 08:29:38 -0700 Message-ID: <20261002152948.85308-2-robin.clark@oss.qualcomm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20261002152948.85308-1-robin.clark@oss.qualcomm.com> References: <20261002152948.85308-1-robin.clark@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=OMqyTiaB c=1 sm=1 tr=0 ts=6abfcdf3 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=19Wyn7e3V/0aNffMjNCMQw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=zd2uoN0lAAAA:8 a=Ql1oLI5ppxrsW8Emd60A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: UgRfL9aGwDY__EIAByEP9vNxREquwOzB X-Proofpoint-ORIG-GUID: UgRfL9aGwDY__EIAByEP9vNxREquwOzB X-Proofpoint-Spam-Info: AW1haW4tMjYxMDAyMDA2MSBTYWx0ZWRfX0k1GoPg9anEs rvSw9bIVwxa5wWFivVrsb6YMYZItfJinzu3enfhErO6A4gtF6R7mouQDVAeLR2/ngzLwves26kM Wr1wu6Z6zLocq93yRkF8ZmK/LMauQXI= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDAyMDA2MSBTYWx0ZWRfX689xaKRTeB0P UtWerAOe4caDTzZdAAkQn8s15sscVbEvn+mP7THZAmJp9KxHyoQUfIMcbDV/WlMyw/jMX0vxHxk oJZSCIekziNMKlKmt2Qmx6sg7+7GcAJbGPi6kiWwYPCKqHMIIQ3lEYIrEN9V0Dcw+J0i4M5wP2q vPzAMCvh1n2twphKYbkviYpgjfzfZqREWmM8dH89/XjPaAg3z9To0AjlEV1cDlYROlGkr8FKAVD CuD05O1HyZvhUcGWGzRrsE2/VOFzFpLdruWazLgkVmBUr8YPxeQS6pe1bCOceViaP4y8fqzmPpW MTXfozibNkwp53zdLVBqK50oLMfEOxXqUsPk0CpU/o3OkSV9drF+uew7QhXypmW7vmw7B4pHU+l XrruOBELuWnFXfaBLKxyQVAjDn/3TLgrfANS99DTkugfMOalqkD21a6aZq1Euhrd0qFjCmTeaMF CteGlhxg+2Z4x1lA7eQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-02_04,2026-10-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 suspectscore=0 impostorscore=0 phishscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 spamscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610020061 Mostly we don't care about the page array, mapping/etc works in terms of the sgt. Add a helper to prepare for allowing the page array to be NULL for imported dma-bufs. Signed-off-by: Rob Clark Acked-by: Christian König --- drivers/gpu/drm/msm/msm_gem.c | 8 ++++---- drivers/gpu/drm/msm/msm_gem.h | 6 ++++++ 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index c4cff3d53d81..e8390ebd5dd5 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -147,7 +147,7 @@ static void update_lru_active(struct drm_gem_object *obj) struct msm_drm_private *priv = obj->dev->dev_private; struct msm_gem_object *msm_obj = to_msm_bo(obj); - GEM_WARN_ON(!msm_obj->pages); + GEM_WARN_ON(!is_resident(msm_obj)); if (msm_obj->pin_count) { drm_gem_lru_move_tail_locked(&priv->lru.pinned, obj); @@ -167,7 +167,7 @@ static void update_lru_locked(struct drm_gem_object *obj) msm_gem_assert_locked(&msm_obj->base); - if (!msm_obj->pages) { + if (!is_resident(msm_obj)) { GEM_WARN_ON(msm_obj->pin_count); drm_gem_lru_move_tail_locked(&priv->lru.unbacked, obj); @@ -949,7 +949,7 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m, stats->active.size += obj->size; } - if (msm_obj->pages) { + if (is_resident(msm_obj)) { stats->resident.count++; stats->resident.size += obj->size; } @@ -1172,7 +1172,7 @@ static enum drm_gem_object_status msm_gem_status(struct drm_gem_object *obj) struct msm_gem_object *msm_obj = to_msm_bo(obj); enum drm_gem_object_status status = 0; - if (msm_obj->pages) + if (is_resident(msm_obj)) status |= DRM_GEM_OBJECT_RESIDENT; if (msm_obj->madv == MSM_MADV_DONTNEED) diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index dff60cbc9d95..73dafe080bfd 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -419,6 +419,12 @@ static inline bool is_unevictable(struct msm_gem_object *msm_obj) return is_unpurgeable(msm_obj) || msm_obj->vaddr; } +/* Are backing pages/sgt allocated? */ +static inline bool is_resident(struct msm_gem_object *msm_obj) +{ + return !!msm_obj->pages; +} + void msm_gem_purge(struct drm_gem_object *obj); void msm_gem_evict(struct drm_gem_object *obj); void msm_gem_vunmap(struct drm_gem_object *obj); -- 2.55.0