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 3FB19426EDA; Tue, 31 Mar 2026 16:39:00 +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=1774975141; cv=none; b=ZIcMJWLioFQsQJJMqwzqRaPkCiHYkN7LCcqKeLGB1ka7yY70tlLR/HdyUeZnBBtufRSYksILGKBfbGKSaLY0dE+O2TeEmcYxf4HuhBlbHrReewFGh1GZnWRePANjOhGRX4XXs4cYI8v1F+GykBptXGuAx5q3+VAxcqnhrDPook4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774975141; c=relaxed/simple; bh=3eILs24/6V+2+lmj+h7E/m3eJotuenDoqi7BbXTlUhM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FHO/sgOxbEvsuRF0yRxy/WKDrZzD1Tdn2zHDC7DaWFOXWuVkMnxcaf1KQ6dMds/uZzbFJRpJ35t7hB34UA3Nfaoe1K2JpCp3IxoPC4yram2RM5FQaubXE6r/y8TIjdoqCkwiTYw5mqUhLQUMxdOAkvGGO82YI9TmEnvYXDPEWOM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=u9+h1oGQ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="u9+h1oGQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81463C19423; Tue, 31 Mar 2026 16:39:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774975140; bh=3eILs24/6V+2+lmj+h7E/m3eJotuenDoqi7BbXTlUhM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u9+h1oGQKR2LpSKvMBmPUCPbB7lsoMvo6wk76EmEuJld/g6dlQrsqwIqGdoRdb/s0 lkuLNn00dIhQWBC5OxY8B+rKLROtVx9ik3dwKZrW4BEqBrgEQqIjSIWlUhjH1bLoU1 E0Wvj7F0MfLl85hCMsEVGlE0Dh1A08r4HIiRK+aU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Matt Atwood , Matt Roper , Rodrigo Vivi , Sasha Levin Subject: [PATCH 6.19 179/342] drm/xe: Implement recent spec updates to Wa_16025250150 Date: Tue, 31 Mar 2026 18:20:12 +0200 Message-ID: <20260331161805.591872870@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260331161758.909578033@linuxfoundation.org> References: <20260331161758.909578033@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Matt Roper [ Upstream commit 56781a4597706cd25185b1dedc38841ec6c31496 ] The hardware teams noticed that the originally documented workaround steps for Wa_16025250150 may not be sufficient to fully avoid a hardware issue. The workaround documentation has been augmented to suggest programming one additional register; make the corresponding change in the driver. Fixes: 7654d51f1fd8 ("drm/xe/xe2hpg: Add Wa_16025250150") Reviewed-by: Matt Atwood Link: https://patch.msgid.link/20260319-wa_16025250150_part2-v1-1-46b1de1a31b2@intel.com Signed-off-by: Matt Roper (cherry picked from commit a31566762d4075646a8a2214586158b681e94305) Signed-off-by: Rodrigo Vivi Signed-off-by: Sasha Levin --- drivers/gpu/drm/xe/regs/xe_gt_regs.h | 1 + drivers/gpu/drm/xe/xe_wa.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h index 917a088c28f24..ec1ae2dc6cabe 100644 --- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h +++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h @@ -544,6 +544,7 @@ #define ENABLE_SMP_LD_RENDER_SURFACE_CONTROL REG_BIT(44 - 32) #define FORCE_SLM_FENCE_SCOPE_TO_TILE REG_BIT(42 - 32) #define FORCE_UGM_FENCE_SCOPE_TO_TILE REG_BIT(41 - 32) +#define L3_128B_256B_WRT_DIS REG_BIT(40 - 32) #define MAXREQS_PER_BANK REG_GENMASK(39 - 32, 37 - 32) #define DISABLE_128B_EVICTION_COMMAND_UDW REG_BIT(36 - 32) diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c index 4039a6428e6c1..c15b0288e0ff5 100644 --- a/drivers/gpu/drm/xe/xe_wa.c +++ b/drivers/gpu/drm/xe/xe_wa.c @@ -261,7 +261,8 @@ static const struct xe_rtp_entry_sr gt_was[] = { LSN_DIM_Z_WGT_MASK, LSN_LNI_WGT(1) | LSN_LNE_WGT(1) | LSN_DIM_X_WGT(1) | LSN_DIM_Y_WGT(1) | - LSN_DIM_Z_WGT(1))) + LSN_DIM_Z_WGT(1)), + SET(LSC_CHICKEN_BIT_0_UDW, L3_128B_256B_WRT_DIS)) }, /* Xe2_HPM */ -- 2.53.0