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 194212FDC5E; Tue, 31 Mar 2026 17:03:41 +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=1774976621; cv=none; b=rRCzp8tH4Qm9boNQelxUehd6pKrAsstHZg/YsN4N2ewGihvZVJxdYr/62h3emNkYfig5egm4IF4RZ2w9Y0Fo1v6EjIgXdBP3vQd8zS60LT3iSphSn+vRlY97X37liGmfBzGBsgna0idaKlAV2B+C2DgbEHvt+tyg+DEWd/8AAIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774976621; c=relaxed/simple; bh=w2aQJYfHm3K+EP2y8Ae8NRiM9gjuAzZcxoAvDK7u5lk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nOjYDVu2y039H2XEuWm+T+D82YGyxb37afE6ndmWNwLKtOAM8uSudtwJfmqZLJ4Hq5lpCIGfZVKWVnb+GyQPwbUQJvyI25kjAVd88V5jl9OS5gxtMiigxtDgifw9hjmz66HucVKBNjuMCGJ+ZpkfeLnmTnXnrSiyKJxO0TiZkhc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=QhqcPRVG; 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="QhqcPRVG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A0A09C19423; Tue, 31 Mar 2026 17:03:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774976621; bh=w2aQJYfHm3K+EP2y8Ae8NRiM9gjuAzZcxoAvDK7u5lk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QhqcPRVGLR70UY3A3VJpkkL0P3uQV+URh9iZlIVMrLmH3Km9dCs8txGyJH0f63Bm9 dZM9VxAVxh0heJlx+tgLlsVpLk6BARUGq8XxY2tv86JThuGqv+uIjQnug7rxQod5xS cDt4hu1QoCIRDHI1k0L0ApyOQ/9NJNxNc/8uk3Ro= 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 6.18 162/309] drm/xe: Implement recent spec updates to Wa_16025250150 Date: Tue, 31 Mar 2026 18:21:05 +0200 Message-ID: <20260331161759.429310629@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260331161753.468533260@linuxfoundation.org> References: <20260331161753.468533260@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 6.18-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 f680c8b8f2587..7d90e4dd86d0e 100644 --- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h +++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h @@ -540,6 +540,7 @@ #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 fe6e6227d9216..51c5985830b17 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