From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F28C4D8D87; Sat, 28 Feb 2026 17:35:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300108; cv=none; b=BJAmfZAeJ5UdDSbR0uRakeXag/d4/PlYMb03FR645ElhLDJtEBxm4QTpYL6D2XT7qiG8loYuwyl4xCvnoekrC40ABL2PRyLNEXPjKk02T1qGZexAba21UVuC2vh6PvyQOOczF1E5m1oOpWj0m0ih3lMKihldReOblO7Y+PMfPrk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300108; c=relaxed/simple; bh=V/p2T36y6sxgHGYF7MNGfb1Sl2dsCVVYF9H5KcDeDcs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=o9J2zcptqvhBGNFO1ZZui6UG8Jhqlrwiz9LqHWm0Zu6m5XpwoqO+tLkueGPTMR4G20WgF8sXIfCvSMxpbYTX3SkldHV2WgiXt4kaqspIId79aXMewO/t78nlY03X8ijtkHbK+J8nAWnSDuyEqw0qxHkFAQ/7I6q6h0MxQKOZcmY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rf39c5oy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rf39c5oy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42D8CC19424; Sat, 28 Feb 2026 17:35:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300107; bh=V/p2T36y6sxgHGYF7MNGfb1Sl2dsCVVYF9H5KcDeDcs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rf39c5oyim/4AyN3Jhljd3+MWyJqnt0uPT7IaHjuK8Mcp7gt4bpvAe42piLsTI/1T hD6lA3UcxZH0Q+KVbk8M5RFQfyFZl8msmbecPEBAkBvYyjHhj7CihVaDEgX+9eVm/i 6domWo8isVa84NTG4zrxvXaM/VLMLj9YS6v+e2eEumht5/yHtYrwaiiMWyVC8NTpDJ hERLrfTIoFBhsqQgSjB9sIvp3uZWq6qXmv280iIaRgduXuvTIA1v6vx8jef0NWDAnG gbZAFZvutz+hxa9lAD32GC1QkAfOmskQygj/kKVyOWMMmMJsleVDbqI7vAzeBcG6v7 rYh0i2kAXkVSw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Himal Prasad Ghimiray , Matthew Brost , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , Sasha Levin Subject: [PATCH 6.19 124/844] drm/xe/vm: Skip ufence association for CPU address mirror VMA during MAP Date: Sat, 28 Feb 2026 12:20:37 -0500 Message-ID: <20260228173244.1509663-125-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Himal Prasad Ghimiray [ Upstream commit 7f08cc5b3cc3bf6416f8b55bff906f67ed75637d ] The MAP operation for a CPU address mirror VMA does not require ufence association because such mappings are not GPU-synchronized and do not participate in GPU job completion signaling. Remove the unnecessary ufence addition for this case to avoid -EBUSY failure in check_ufence of unbind ops. Cc: Matthew Brost Cc: Thomas Hellström Reviewed-by: Matthew Brost Link: https://patch.msgid.link/20251125075628.1182481-6-himal.prasad.ghimiray@intel.com Signed-off-by: Himal Prasad Ghimiray Signed-off-by: Sasha Levin --- drivers/gpu/drm/xe/xe_vm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 9781209dd26ed..612fc5b2539cd 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -3223,7 +3223,8 @@ static void op_add_ufence(struct xe_vm *vm, struct xe_vma_op *op, { switch (op->base.op) { case DRM_GPUVA_OP_MAP: - vma_add_ufence(op->map.vma, ufence); + if (!xe_vma_is_cpu_addr_mirror(op->map.vma)) + vma_add_ufence(op->map.vma, ufence); break; case DRM_GPUVA_OP_REMAP: if (op->remap.prev) -- 2.51.0