From nobody Sat Feb 7 08:44:27 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (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 6370B347BB5; Wed, 22 Oct 2025 13:35:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761140146; cv=none; b=LfJ8SoC6tAzprDhUTdN0RcE8xNt9pTE2s+s3OrziTTp7IUcP+PDONGTyYN5Q/OQlN8R4KJsbrFxXYRzP1FCbbCpHG1rKlyLhVavNw+CvYcQFTQNGFI3Bj8SVOon6HBv9/kc8RaIpm5wR6MGAgoG+5V6ppfnN0GeAVNGTMo8ZoVI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761140146; c=relaxed/simple; bh=yXVa8huKIo4elALQY0f1rQ9fwdppHTldQifiFyyguTE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=LDfTBcScaJ4aIsFMSwF/8f+91JFpFOZ0g4NeIOJp2CT4NR7Tgji/zw7Uc1/sIHhzGrnfe88pMtvFE6qoybv3QSIcjaZJhFTH8jr6uJKAifCBn5KfACjJvhvT9BgVMJj4xI8lhsZmAoCs6PlVR3ZxhzHiETT1FLUJI2/ZbxoSqhU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=X3IFkUim; arc=none smtp.client-ip=192.198.163.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="X3IFkUim" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1761140144; x=1792676144; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yXVa8huKIo4elALQY0f1rQ9fwdppHTldQifiFyyguTE=; b=X3IFkUimVw0dOCnoJzMsWzj58e3yjtjnWGnbw5SVjrTjLpiwWDP++xEG jDeETXnyL5mUgoSkbIjzZp9RVPSEa01S2P0+5zuy3bZt5PnBY8vsjnpgz hztoJKRbfNjvoWXoWGoioMZoUIHjIoY19D7idglYEYbCQppsuOFm1G/so Xn4Rf1WVWXq25u/A7WVVS3pKivjhdOIUi29M0xQHFlmLoEyVQpU7ABFPV hdeYbKvyI4Apju/+6t+r2JufrFNs5lQinW1ee720EY98NEE0V4tAPvHSo DZPYIVcq0Y4yMDPtrh4gQkWSBmVkrQVQwpzY7AQmN52S4xwDp4Oi49Nxu g==; X-CSE-ConnectionGUID: dpg83dJMSSOIKrpwQG847A== X-CSE-MsgGUID: Fbs9MUZgRpuTHi2O7KEALA== X-IronPort-AV: E=McAfee;i="6800,10657,11586"; a="67152611" X-IronPort-AV: E=Sophos;i="6.19,247,1754982000"; d="scan'208";a="67152611" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Oct 2025 06:35:44 -0700 X-CSE-ConnectionGUID: ooAr2epaTPKL8Jg0+dKHYQ== X-CSE-MsgGUID: rmpyhMSrR0y9wAJ9zBSIVA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,247,1754982000"; d="scan'208";a="183814472" Received: from ijarvine-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.244.82]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Oct 2025 06:35:36 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , =?UTF-8?q?Christian=20K=C3=B6nig?= , =?UTF-8?q?Micha=C5=82=20Winiarski?= , Alex Deucher , amd-gfx@lists.freedesktop.org, David Airlie , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, Jani Nikula , Joonas Lahtinen , Lucas De Marchi , Rodrigo Vivi , Simona Vetter , Tvrtko Ursulin , "Michael J . Ruhl" , Andi Shyti , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH v3 09/11] drm/xe/vram: Use pci_rebar_get_max_size() Date: Wed, 22 Oct 2025 16:33:29 +0300 Message-Id: <20251022133331.4357-10-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20251022133331.4357-1-ilpo.jarvinen@linux.intel.com> References: <20251022133331.4357-1-ilpo.jarvinen@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Use pci_rebar_get_max_size() from PCI core in resize_vram_bar() to simplify code. Signed-off-by: Ilpo J=C3=A4rvinen Acked-by: Christian K=C3=B6nig Acked-by: Rodrigo Vivi --- drivers/gpu/drm/xe/xe_vram.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_vram.c b/drivers/gpu/drm/xe/xe_vram.c index 9ac053bb0b2e..55232dfe2cd8 100644 --- a/drivers/gpu/drm/xe/xe_vram.c +++ b/drivers/gpu/drm/xe/xe_vram.c @@ -56,16 +56,11 @@ static void resize_vram_bar(struct xe_device *xe) resource_size_t current_size; resource_size_t rebar_size; struct resource *root_res; - u32 bar_size_mask; + int max_size, i; u32 pci_cmd; - int i; =20 /* gather some relevant info */ current_size =3D pci_resource_len(pdev, LMEM_BAR); - bar_size_mask =3D pci_rebar_get_possible_sizes(pdev, LMEM_BAR); - - if (!bar_size_mask) - return; =20 if (force_vram_bar_size < 0) return; @@ -79,7 +74,8 @@ static void resize_vram_bar(struct xe_device *xe) drm_info(&xe->drm, "Requested size: %lluMiB is not supported by rebar sizes: 0x%x. Leavi= ng default: %lluMiB\n", (u64)pci_rebar_size_to_bytes(rebar_size) >> 20, - bar_size_mask, (u64)current_size >> 20); + pci_rebar_get_possible_sizes(pdev, LMEM_BAR), + (u64)current_size >> 20); return; } =20 @@ -87,7 +83,10 @@ static void resize_vram_bar(struct xe_device *xe) if (rebar_size =3D=3D current_size) return; } else { - rebar_size =3D pci_rebar_size_to_bytes(__fls(bar_size_mask)); + max_size =3D pci_rebar_get_max_size(pdev, LMEM_BAR); + if (max_size < 0) + return; + rebar_size =3D pci_rebar_size_to_bytes(max_size); =20 /* only resize if larger than current */ if (rebar_size <=3D current_size) --=20 2.39.5