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 DCDE418E02A; Fri, 7 Aug 2026 15:14:07 +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=1786115649; cv=none; b=SHbIdyf6tMOllmXbxgLOhgUZVndZNmooitok6vh4rhqgMKN9jmzR8rZ1RzMbu5+acicuZ2KgRJKl50VRjDSEPFE97s24oY2XzDpBC5sBN8qaVxDKQoH6JykKx3CtAPibOFC84/1ZW4caex5chTbZeSE65VL3gIqZtwjp88Q4QO0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786115649; c=relaxed/simple; bh=8xmaPOPhIKYZLYvwgP+VxReIkW9Vo8x8QsXTvZcUwA4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sCSI8SNlJCOv+kOzpVeY39FkKgoPwrU16fLzJVTQbzYxk57jMmO6tPZyZxInPgqrI9aHbkFGt1Zwdzzp+g17SQ+FrlYuJ2ndWGiYcUDL3TupG7OVE89cxpHVoT9chdt6/ML5wuOwhyd7nmy4Dyv+rRLZWJ6Bvm/qVebiraxHAPo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=PGOM+W+C; 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="PGOM+W+C" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 454571F000E9; Fri, 7 Aug 2026 15:14:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786115647; bh=akW7u+IqEvHdqeNH9wx8oLRZj6kDSwz5Z5cVmPpAmY0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=PGOM+W+CbBGrSsKxJcvGzH2MVkVH50G5ZJbZUe0PJoZJ8ug69A6T9bVA4AXH8WWPQ TRAG4w5aN2AbHMfvPTE/+e1E7j8JygNiZccJcf0L4Z9Tl2MBHZJWaF4R/oVwxTr6TC PlPqQXDSHzDa5fae3LTse7TrrdQnaK9S3N1CC0I4= 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 6.18 350/396] drm/xe/rtp: (De-)whitelist OA registers for all hwes for a gt Date: Fri, 7 Aug 2026 16:38:30 +0200 Message-ID: <20260807143431.835476259@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260807143424.272339768@linuxfoundation.org> References: <20260807143424.272339768@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 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ashutosh Dixit [ Upstream commit ebba7ce65252a4ab0e3794ff14854df2afca5c08 ] Whitelist or de-whitelist OA registers for all hwe's on the gt on which the OA stream is opened. This simplifies the case where an oa unit has 0 attached hwe's (but which monitors OA events on the associated GT). 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/20260615224227.34880-8-ashutosh.dixit@intel.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/xe/xe_reg_whitelist.c | 34 +++++++++++++++++++++++++-- drivers/gpu/drm/xe/xe_reg_whitelist.h | 4 ++++ 2 files changed, 36 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_reg_whitelist.c b/drivers/gpu/drm/xe/xe_reg_whitelist.c index 4922b3561dbf4..e77f50da4a268 100644 --- a/drivers/gpu/drm/xe/xe_reg_whitelist.c +++ b/drivers/gpu/drm/xe/xe_reg_whitelist.c @@ -9,7 +9,7 @@ #include "regs/xe_gt_regs.h" #include "regs/xe_oa_regs.h" #include "regs/xe_regs.h" -#include "xe_gt_types.h" +#include "xe_gt.h" #include "xe_gt_printk.h" #include "xe_platform_types.h" #include "xe_reg_sr.h" @@ -161,7 +161,7 @@ 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) +static void __whitelist_oa_regs(struct xe_hw_engine *hwe, bool whitelist) { struct xe_reg_sr_entry *entry; unsigned long reg; @@ -176,6 +176,36 @@ __maybe_unused static void __whitelist_oa_regs(struct xe_hw_engine *hwe, bool wh xe_reg_sr_apply_mmio(&hwe->oa_sr, hwe->gt); } +/** + * xe_reg_whitelist_oa_regs - whitelist oa registers for gt + * @gt: gt to whitelist oa registers for + * + * Whitelist OA registers by resetting RING_FORCE_TO_NONPRIV_DENY + */ +void xe_reg_whitelist_oa_regs(struct xe_gt *gt) +{ + struct xe_hw_engine *hwe; + enum xe_hw_engine_id id; + + for_each_hw_engine(hwe, gt, id) + __whitelist_oa_regs(hwe, true); +} + +/** + * xe_reg_dewhitelist_oa_regs - dewhitelist oa registers for gt + * @gt: gt to dewhitelist oa registers for + * + * Dewhitelist OA registers by setting RING_FORCE_TO_NONPRIV_DENY + */ +void xe_reg_dewhitelist_oa_regs(struct xe_gt *gt) +{ + struct xe_hw_engine *hwe; + enum xe_hw_engine_id id; + + for_each_hw_engine(hwe, gt, id) + __whitelist_oa_regs(hwe, false); +} + /** * xe_reg_whitelist_print_entry - print one whitelist entry * @p: DRM printer diff --git a/drivers/gpu/drm/xe/xe_reg_whitelist.h b/drivers/gpu/drm/xe/xe_reg_whitelist.h index 69b121d377da0..f243b6ac60b7e 100644 --- a/drivers/gpu/drm/xe/xe_reg_whitelist.h +++ b/drivers/gpu/drm/xe/xe_reg_whitelist.h @@ -9,12 +9,16 @@ #include struct drm_printer; +struct xe_gt; struct xe_hw_engine; struct xe_reg_sr; struct xe_reg_sr_entry; void xe_reg_whitelist_process_engine(struct xe_hw_engine *hwe); +void xe_reg_whitelist_oa_regs(struct xe_gt *gt); +void xe_reg_dewhitelist_oa_regs(struct xe_gt *gt); + void xe_reg_whitelist_print_entry(struct drm_printer *p, unsigned int indent, u32 reg, struct xe_reg_sr_entry *entry); -- 2.53.0