From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 DBBA637CD40; Fri, 7 Aug 2026 15:48:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786117733; cv=none; b=ukso7n4sbZXdf7MjApscVBeF3xcZWCkLcEG1AsYtDty9NG68bN70cUm+OC//TjTEyarIuVwFuUS9ZQcZPW456Aa5A5R6PONzlRdxuBMWrsHcC/sFbn8mcPux+A0X1XO+MxRxCXIPPH1X26M5C/1iXiiDcsrIcEyZx9Tn0w+WeRI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786117733; c=relaxed/simple; bh=41jNkgGoskQb+cUhx4atp1isB/N8+qHPnU0tmiS/xrU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MuJlFfBuVAXOAKTM3OboqzrHYt2Ki4zX+APJLs0/k/XCQnjv9xzbIILjhMwHaYSpIHMtcKVCt7Rk+C5JviON0qopU+zQ57C1meyeFBe5MztqC1wWukYv46IQJTbnBjwHw/EzmVNQgFIZqNy+vNTPjDYuR7Yz2fVACWrbPiezkeQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VsjteeE5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="VsjteeE5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44E381F000E9; Fri, 7 Aug 2026 15:48:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786117731; bh=CDGkI9DnApHmWtd04KPtkRmFXlI1b6HQg0ZDMF6+AT4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VsjteeE58KLc4SDvdsCXQDMdn0EC/DDLkrSvGgS40aQNqc3bn3pf3HCNHKvAMVVwu qb7I8TzCbIbB9TEyUezdx2OGAwGXZYypkDMPn6uhIzIdTHwzvAi4/+VNELMpIFs6G7 tSyECsdk5ga24cJ17P+apOFxIv12oFNt3SA9HtE8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ashutosh Dixit , Umesh Nerlige Ramappa , Sasha Levin Subject: [PATCH 7.1 422/438] drm/xe/rtp: Toggle deny bit to (de-)whitelist OA regs Date: Fri, 7 Aug 2026 16:40:18 +0200 Message-ID: <20260807143436.962086864@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260807143428.008222056@linuxfoundation.org> References: <20260807143428.008222056@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ashutosh Dixit [ Upstream commit b422babd77fac2c96b92db484050e460899bddaf ] Whitelist or de-whitelist OA registers by setting or resetting the 'deny' bit in OA nonpriv registers and writing new register values to HW. Fixes: 828a8eaf37c3 ("drm/xe/oa: Add MMIO trigger support") Cc: stable@vger.kernel.org # v6.12+ Signed-off-by: Ashutosh Dixit Reviewed-by: Umesh Nerlige Ramappa Link: https://patch.msgid.link/20260615224227.34880-7-ashutosh.dixit@intel.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/xe/xe_reg_whitelist.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_reg_whitelist.c b/drivers/gpu/drm/xe/xe_reg_whitelist.c index dbaa387a35613..1a53abbd9a74f 100644 --- a/drivers/gpu/drm/xe/xe_reg_whitelist.c +++ b/drivers/gpu/drm/xe/xe_reg_whitelist.c @@ -216,6 +216,21 @@ void xe_reg_whitelist_process_engine(struct xe_hw_engine *hwe) whitelist_apply_to_hwe(hwe, &hwe->oa_whitelist, &hwe->reg_sr, first_oa_slot); } +__maybe_unused static void __whitelist_oa_regs(struct xe_hw_engine *hwe, bool whitelist) +{ + struct xe_reg_sr_entry *entry; + unsigned long reg; + + xa_for_each(&hwe->oa_sr.xa, reg, entry) { + if (whitelist) + entry->set_bits &= ~RING_FORCE_TO_NONPRIV_DENY; + else + entry->set_bits |= RING_FORCE_TO_NONPRIV_DENY; + } + + xe_reg_sr_apply_mmio(&hwe->oa_sr, hwe->gt); +} + /** * xe_reg_whitelist_print_entry - print one whitelist entry * @p: DRM printer -- 2.53.0