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charset="utf-8" Content-Transfer-Encoding: 8bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yXMQQqDMBBA0avIrBsYRSP2KqWEJI46lkbJWCmId zfq8i3+30AoMgk8sw0irSw8hYT8kYEfbOhJcZsMBRYadV6q9Wsch9b4gfxHVKmxrpxF3ViEFM2 ROv5fw9f7tvzcSH45L7DvByCW4KhyAAAA X-Change-ID: 20260614-vm_bind_checks-46075ba069a0 To: Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?utf-8?q?Adri=C3=A1n_Larumbe?= X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1068; i=adrian.larumbe@collabora.com; h=from:subject:message-id; bh=F6KraEBBktbFCEfAWkWNMW41geaQ+BkD1x+4on1sTjg=; b=owEB7QES/pANAwAKAQ4mfkzuU0M9AcsmYgBqMWHcGRIxR5ifnnfkekTnAlHvpehop1KVeaCAs VrLwx1OprqJAbMEAAEKAB0WIQQyQDDowAUXXfk3B6QOJn5M7lNDPQUCajFh3AAKCRAOJn5M7lND PS1cDACtOuMlPUzntjDIKJzOpWRV52FpbyENTXWZBg112ugdwJ7s4fU1dxiddyl2/rE/5J45BUH wwy4rjySUm0Z+N1wgQyBnEFjwPLwW7WUnW1Sth+gvMn2zQ+7C5v2hw7sJ7JVeCAOTGwZ9YTN0Mj 07vkgYy2CooJJvWM7+cGuU0tfsEhhIQCqeWPHzLeentGmF6mxW8Sx43ypQn2w5D1kUrFbMMAdQe 9TfvKmPFGq3sVUFPAJBGCRx0U1MegpnJnMOMBIZ4nce3zX/kx1fOGQbMixfL9jhUtEvG5r9S92V /xz4Un/SU0vLD5sCcZi15hPUDTqH1mt5CYGF0J63KNLUK4o5xM4SVd7pYKkDJ9uSyB2ilJADD7G BsVSUfb3P1RTqrknhG1kpxQoL8/SxSWKlDQ4kHdJ/Dm50GHR+60ILih8KkcdqBZr7NCNFlzEM50 c3bTmuUN3vFLz91AUpFobSmSzo7N570PWvvj+2njekWLcTBYjzeNVw0EW4a1vNHGd8AFs= X-Developer-Key: i=adrian.larumbe@collabora.com; a=openpgp; fpr=324030E8C005175DF93707A40E267E4CEE53433D Just a quick check to make sure user-supplied vm_bind regions aren't clashing with the region reserved for kernel bo's. I tried to introduce a similar check for panthor_vm_alloc_va(), to throw back an error when mappings of kernel bo's against specific addresses fall within the auto_va region. However that is not possible, since there's one FW region that must be mapped right at CSF_MCU_SHARED_REGION_START. That is usually not a problem, since drm_mm_insert_node_in_range() will pick the next one available. Signed-off-by: Adrián Larumbe --- Adrián Larumbe (2): drm/panthor: Add vm_bind region with kbo range intersection check drm/panthor: Fix comment to reflect actual struct field name drivers/gpu/drm/panthor/panthor_mmu.c | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) --- base-commit: 2afdfc658f7a7e9ee2a67ec6663922da9c799c53 change-id: 20260614-vm_bind_checks-46075ba069a0 Best regards, -- Adrián Larumbe