From patchwork Fri Jul 7 09:50:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13304655 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 21BC7EB64D9 for ; Fri, 7 Jul 2023 09:52:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232808AbjGGJwQ (ORCPT ); Fri, 7 Jul 2023 05:52:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232814AbjGGJwP (ORCPT ); Fri, 7 Jul 2023 05:52:15 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C082EE72; Fri, 7 Jul 2023 02:52:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id F2653618E5; Fri, 7 Jul 2023 09:52:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD0AAC433C7; Fri, 7 Jul 2023 09:51:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1688723521; bh=yMWBZi7OWijpDNbPPVU11zT7Ofk6CC1w0krvsGmTO/Q=; h=From:To:Cc:Subject:Date:From; b=Z07rgcHB9zc3yULQo5sHhLIv44yzQod9z2mXK8VAD2ky6t/sKWYV2RwpBSfsckmOs agjSwU4wXzrOoatycsFhpr/tbEEL/fP69Db446Ge2rJz9mePLl3mySa8jKvq+GyiTu 4KWv6txOUukHX9wFw6zAalyyt0ZA7Ebj/AVQMqWWhUVheF2F5R/fyMF7TpsVLgmD7X shT+2s00P6kEvLIw1WqbApGnI1TejLDoiQ7J2yAN5K/Ulrz2OokpUU5d5LLVQA/dtl ZJiLtsDua4qi8vlm2W12s8HzAd4X6pykjOz3jsL1fYX2KFgKUbi6PXqdCCzGX7LPBk 1qapI2AldOYXw== From: Arnd Bergmann To: Thomas Zimmermann Cc: javierm@redhat.com, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Russell King , dri-devel@lists.freedesktop.org, Ard Biesheuvel , Helge Deller , Greg Kroah-Hartman , Arnd Bergmann , Richard Henderson , Ivan Kokshaysky , Matt Turner , WANG Xuerui , Thomas Bogendoerfer , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org Subject: [PATCH 1/3] vgacon: rework screen_info #ifdef checks Date: Fri, 7 Jul 2023 11:50:38 +0200 Message-Id: <20230707095144.1378789-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Arnd Bergmann On non-x86 architectures, the screen_info variable is generally only used for the VGA console where supported, and in some cases the EFI framebuffer or vga16fb. Now that we have a definite list of which architectures actually use it for what, use consistent #ifdef checks so the global variable is only defined when it is actually used on those architectures. On powerpc, there is no support for vgacon, but there is support for vga16fb. Loongarch and riscv have no support for vgacon or vga16fb, but they support EFI firmware, so only that needs to be checked, and the initialization can be removed because that is handled by EFI. IA64 has both vgacon and EFI. Signed-off-by: Arnd Bergmann --- arch/alpha/kernel/setup.c | 2 ++ arch/alpha/kernel/sys_sio.c | 2 ++ arch/ia64/kernel/setup.c | 4 ++++ arch/loongarch/kernel/setup.c | 2 ++ arch/mips/jazz/setup.c | 2 +- arch/mips/kernel/setup.c | 2 +- arch/mips/sibyte/swarm/setup.c | 2 +- arch/mips/sni/setup.c | 2 +- arch/powerpc/kernel/setup-common.c | 2 +- arch/riscv/kernel/setup.c | 11 ++--------- 10 files changed, 17 insertions(+), 14 deletions(-) diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index b650ff1cb022e..b4d2297765c02 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -131,6 +131,7 @@ static void determine_cpu_caches (unsigned int); static char __initdata command_line[COMMAND_LINE_SIZE]; +#ifdef CONFIG_VGA_CONSOLE /* * The format of "screen_info" is strange, and due to early * i386-setup code. This is just enough to make the console @@ -147,6 +148,7 @@ struct screen_info screen_info = { }; EXPORT_SYMBOL(screen_info); +#endif /* * The direct map I/O window, if any. This should be the same diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c index 7c420d8dac53d..7de8a5d2d2066 100644 --- a/arch/alpha/kernel/sys_sio.c +++ b/arch/alpha/kernel/sys_sio.c @@ -57,11 +57,13 @@ sio_init_irq(void) static inline void __init alphabook1_init_arch(void) { +#ifdef CONFIG_VGA_CONSOLE /* The AlphaBook1 has LCD video fixed at 800x600, 37 rows and 100 cols. */ screen_info.orig_y = 37; screen_info.orig_video_cols = 100; screen_info.orig_video_lines = 37; +#endif lca_init_arch(); } diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 5a55ac82c13a4..0c09ff7fde46b 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -86,9 +86,11 @@ EXPORT_SYMBOL(local_per_cpu_offset); #endif unsigned long ia64_cycles_per_usec; struct ia64_boot_param *ia64_boot_param; +#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_EFI) struct screen_info screen_info; unsigned long vga_console_iobase; unsigned long vga_console_membase; +#endif static struct resource data_resource = { .name = "Kernel data", @@ -497,6 +499,7 @@ early_console_setup (char *cmdline) static void __init screen_info_setup(void) { +#ifdef CONFIG_VGA_CONSOLE unsigned int orig_x, orig_y, num_cols, num_rows, font_height; memset(&screen_info, 0, sizeof(screen_info)); @@ -525,6 +528,7 @@ screen_info_setup(void) screen_info.orig_video_mode = 3; /* XXX fake */ screen_info.orig_video_isVGA = 1; /* XXX fake */ screen_info.orig_video_ega_bx = 3; /* XXX fake */ +#endif } static inline void diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 78a00359bde3c..6b3932677f5de 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -57,7 +57,9 @@ #define SMBIOS_CORE_PACKAGE_OFFSET 0x23 #define LOONGSON_EFI_ENABLE (1 << 3) +#ifdef CONFIG_EFI struct screen_info screen_info __section(".data"); +#endif unsigned long fw_arg0, fw_arg1, fw_arg2; DEFINE_PER_CPU(unsigned long, kernelsp); diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c index ee044261eb223..3c14548353e47 100644 --- a/arch/mips/jazz/setup.c +++ b/arch/mips/jazz/setup.c @@ -76,7 +76,7 @@ void __init plat_mem_setup(void) _machine_restart = jazz_machine_restart; -#ifdef CONFIG_VT +#ifdef CONFIG_VGA_CONSOLE screen_info = (struct screen_info) { .orig_video_cols = 160, .orig_video_lines = 64, diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index cb871eb784a7c..1aba7dc95132c 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -54,7 +54,7 @@ struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly; EXPORT_SYMBOL(cpu_data); -#ifdef CONFIG_VT +#ifdef CONFIG_VGA_CONSOLE struct screen_info screen_info; #endif diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c index 76683993cdd3a..37df504d3ecbb 100644 --- a/arch/mips/sibyte/swarm/setup.c +++ b/arch/mips/sibyte/swarm/setup.c @@ -129,7 +129,7 @@ void __init plat_mem_setup(void) if (m41t81_probe()) swarm_rtc_type = RTC_M41T81; -#ifdef CONFIG_VT +#ifdef CONFIG_VGA_CONSOLE screen_info = (struct screen_info) { .orig_video_page = 52, .orig_video_mode = 3, diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c index efad85c8c823b..9984cf91be7d0 100644 --- a/arch/mips/sni/setup.c +++ b/arch/mips/sni/setup.c @@ -38,7 +38,7 @@ extern void sni_machine_power_off(void); static void __init sni_display_setup(void) { -#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_FW_ARC) +#if defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_FW_ARC) struct screen_info *si = &screen_info; DISPLAY_STATUS *di; diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index d2a446216444f..b717875a12a9a 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -98,6 +98,7 @@ int boot_cpu_hwid = -1; int dcache_bsize; int icache_bsize; +#if IS_ENABLED(CONFIG_FB_VGA16) /* * This still seems to be needed... -- paulus */ @@ -109,7 +110,6 @@ struct screen_info screen_info = { .orig_video_isVGA = 1, .orig_video_points = 16 }; -#if defined(CONFIG_FB_VGA16_MODULE) EXPORT_SYMBOL(screen_info); #endif diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index 971fe776e2f8b..a3dbe13f45fb3 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -39,15 +39,8 @@ #include "head.h" -#if defined(CONFIG_DUMMY_CONSOLE) || defined(CONFIG_EFI) -struct screen_info screen_info __section(".data") = { - .orig_video_lines = 30, - .orig_video_cols = 80, - .orig_video_mode = 0, - .orig_video_ega_bx = 0, - .orig_video_isVGA = 1, - .orig_video_points = 8 -}; +#if defined(CONFIG_EFI) +struct screen_info screen_info __section(".data"); #endif /*