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[2001:1868:205::9]) by mx.google.com with ESMTPS id xv6si7616560pab.1.2016.04.01.09.19.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Apr 2016 09:19:22 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) client-ip=2001:1868:205::9; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org; spf=pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) smtp.mailfrom=linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1am1m3-0005Bc-Hq; Fri, 01 Apr 2016 16:18:15 +0000 Received: from mail-wm0-x22a.google.com ([2a00:1450:400c:c09::22a]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1am1aO-0004RR-Cw for linux-arm-kernel@lists.infradead.org; Fri, 01 Apr 2016 16:06:14 +0000 Received: by mail-wm0-x22a.google.com with SMTP id p65so31981818wmp.1 for ; Fri, 01 Apr 2016 09:05:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=npBR0w/+CVkLiwe0939ojjmkFA0V9vARTW8QvBZI06g=; b=EASZ6oQ2fppE5/VuHtVu4QgUwTLuCuAfI+WfxDSEHeiJxhTvwDEGxNQCIYiIZwwSDP WzGEgt9PKrX6iut93ORsB8ZFcbulwmOuZCWS6RYZB1Imc6A0Wh5Ge7moyWJfZB3m+6ZT r17HTLNNFUDoSIMbmhnarNb1WHNekn6hKizc4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=npBR0w/+CVkLiwe0939ojjmkFA0V9vARTW8QvBZI06g=; b=KSMLw/RwFEp1KUYB9l0cv06XddeAgqvOTCwTupgJkiklcaCVvUMzHavzHWXIlIryDG i/+ZsEMmnrVWjCXOsY/xA+1CsFea0C8Gvh2wTnKt8+ujniVidqyTjW7symz9qAcnYU51 Y0b2d9vYW6fxXQrBAbQWTOqKmI62UCB7mUAtpstiX1ExcfU+9BpcgUcb/N7deQrNdf8S zbwSJGmNQh7UePXG+8cOm5keN84PZh0oF0zkV6IkO20ZK8Ka/yIt6fS28pysuU2qpAPl HHpi91+fL6kve5Zo0Gf9lLM3HRknPKFqzP0CezWIG4dQ3WcvqOwUm47LUZ2azp6rt1GV BlEA== X-Gm-Message-State: AD7BkJKT3DOIWMs9RN3b3hSCQLm/TVVOXO10NVz21+aUCkwfPzv+wHPMRMlK4IA6wfFkBW7q X-Received: by 10.194.202.195 with SMTP id kk3mr5634025wjc.159.1459526750848; Fri, 01 Apr 2016 09:05:50 -0700 (PDT) Received: from localhost.localdomain ([195.55.142.58]) by smtp.gmail.com with ESMTPSA id g3sm14698567wjw.31.2016.04.01.09.05.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 01 Apr 2016 09:05:50 -0700 (PDT) From: Ard Biesheuvel To: linux-efi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, matt@codeblueprint.co.uk Subject: [PATCH v3 1/9] efi/x86: prepare GOP handling code for reuse as generic code Date: Fri, 1 Apr 2016 18:05:27 +0200 Message-Id: <1459526735-24936-2-git-send-email-ard.biesheuvel@linaro.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1459526735-24936-1-git-send-email-ard.biesheuvel@linaro.org> References: <1459526735-24936-1-git-send-email-ard.biesheuvel@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160401_090612_858990_DB1D063B X-CRM114-Status: GOOD ( 17.46 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2a00:1450:400c:c09:0:0:0:22a listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, pjones@redhat.com, will.deacon@arm.com, Ard Biesheuvel , dh.herrmann@gmail.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org In preparation of moving this code to drivers/firmware/efi and reusing it on ARM and arm64, apply any changes that will be required to make this code build for other architectures. This should make it easier to track down problems that this move may cause to its operation on x86. Note that the generic version uses slightly different ways of casting the protocol methods and some other variables to the correct types, since such method calls are not loosely typed on ARM and arm64 as they are on x86. Signed-off-by: Ard Biesheuvel --- arch/x86/boot/compressed/eboot.c | 58 ++++++++++++-------- arch/x86/boot/compressed/eboot.h | 4 ++ arch/x86/include/asm/efi.h | 5 ++ include/linux/efi.h | 5 ++ 4 files changed, 49 insertions(+), 23 deletions(-) -- 2.5.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index 583d539a4197..10516e22fdcb 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -622,19 +622,22 @@ setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line, } static efi_status_t -__gop_query32(struct efi_graphics_output_protocol_32 *gop32, +__gop_query32(efi_system_table_t *sys_table_arg, + struct efi_graphics_output_protocol_32 *gop32, struct efi_graphics_output_mode_info **info, unsigned long *size, u64 *fb_base) { struct efi_graphics_output_protocol_mode_32 *mode; + efi_graphics_output_protocol_query_mode query_mode; efi_status_t status; unsigned long m; m = gop32->mode; mode = (struct efi_graphics_output_protocol_mode_32 *)m; + query_mode = (void *)(unsigned long)gop32->query_mode; - status = efi_early->call(gop32->query_mode, gop32, - mode->mode, size, info); + status = __efi_call_early(query_mode, (void *)gop32, mode->mode, size, + info); if (status != EFI_SUCCESS) return status; @@ -643,8 +646,8 @@ __gop_query32(struct efi_graphics_output_protocol_32 *gop32, } static efi_status_t -setup_gop32(struct screen_info *si, efi_guid_t *proto, - unsigned long size, void **gop_handle) +setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si, + efi_guid_t *proto, unsigned long size, void **gop_handle) { struct efi_graphics_output_protocol_32 *gop32, *first_gop; unsigned long nr_gops; @@ -654,7 +657,7 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto, u64 fb_base; struct efi_pixel_bitmask pixel_info; int pixel_format; - efi_status_t status; + efi_status_t status = EFI_NOT_FOUND; u32 *handles = (u32 *)(unsigned long)gop_handle; int i; @@ -667,7 +670,7 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto, efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID; bool conout_found = false; void *dummy = NULL; - u32 h = handles[i]; + efi_handle_t h = (efi_handle_t)(unsigned long)handles[i]; u64 current_fb_base; status = efi_call_early(handle_protocol, h, @@ -680,7 +683,8 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto, if (status == EFI_SUCCESS) conout_found = true; - status = __gop_query32(gop32, &info, &size, ¤t_fb_base); + status = __gop_query32(sys_table_arg, gop32, &info, &size, + ¤t_fb_base); if (status == EFI_SUCCESS && (!first_gop || conout_found)) { /* * Systems that use the UEFI Console Splitter may @@ -735,19 +739,22 @@ out: } static efi_status_t -__gop_query64(struct efi_graphics_output_protocol_64 *gop64, +__gop_query64(efi_system_table_t *sys_table_arg, + struct efi_graphics_output_protocol_64 *gop64, struct efi_graphics_output_mode_info **info, unsigned long *size, u64 *fb_base) { struct efi_graphics_output_protocol_mode_64 *mode; + efi_graphics_output_protocol_query_mode query_mode; efi_status_t status; unsigned long m; m = gop64->mode; mode = (struct efi_graphics_output_protocol_mode_64 *)m; + query_mode = (void *)(unsigned long)gop64->query_mode; - status = efi_early->call(gop64->query_mode, gop64, - mode->mode, size, info); + status = __efi_call_early(query_mode, (void *)gop64, mode->mode, size, + info); if (status != EFI_SUCCESS) return status; @@ -756,8 +763,8 @@ __gop_query64(struct efi_graphics_output_protocol_64 *gop64, } static efi_status_t -setup_gop64(struct screen_info *si, efi_guid_t *proto, - unsigned long size, void **gop_handle) +setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si, + efi_guid_t *proto, unsigned long size, void **gop_handle) { struct efi_graphics_output_protocol_64 *gop64, *first_gop; unsigned long nr_gops; @@ -767,7 +774,7 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto, u64 fb_base; struct efi_pixel_bitmask pixel_info; int pixel_format; - efi_status_t status; + efi_status_t status = EFI_NOT_FOUND; u64 *handles = (u64 *)(unsigned long)gop_handle; int i; @@ -780,7 +787,7 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto, efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID; bool conout_found = false; void *dummy = NULL; - u64 h = handles[i]; + efi_handle_t h = (efi_handle_t)(unsigned long)handles[i]; u64 current_fb_base; status = efi_call_early(handle_protocol, h, @@ -793,7 +800,8 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto, if (status == EFI_SUCCESS) conout_found = true; - status = __gop_query64(gop64, &info, &size, ¤t_fb_base); + status = __gop_query64(sys_table_arg, gop64, &info, &size, + ¤t_fb_base); if (status == EFI_SUCCESS && (!first_gop || conout_found)) { /* * Systems that use the UEFI Console Splitter may @@ -850,8 +858,9 @@ out: /* * See if we have Graphics Output Protocol */ -static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto, - unsigned long size) +efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg, + struct screen_info *si, efi_guid_t *proto, + unsigned long size) { efi_status_t status; void **gop_handle = NULL; @@ -867,10 +876,13 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto, if (status != EFI_SUCCESS) goto free_handle; - if (efi_early->is64) - status = setup_gop64(si, proto, size, gop_handle); - else - status = setup_gop32(si, proto, size, gop_handle); + if (efi_is_64bit()) { + status = setup_gop64(sys_table_arg, si, proto, size, + gop_handle); + } else { + status = setup_gop32(sys_table_arg, si, proto, size, + gop_handle); + } free_handle: efi_call_early(free_pool, gop_handle); @@ -1038,7 +1050,7 @@ void setup_graphics(struct boot_params *boot_params) EFI_LOCATE_BY_PROTOCOL, &graphics_proto, NULL, &size, gop_handle); if (status == EFI_BUFFER_TOO_SMALL) - status = setup_gop(si, &graphics_proto, size); + status = efi_setup_gop(NULL, si, &graphics_proto, size); if (status != EFI_SUCCESS) { size = 0; diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h index d487e727f1ec..4ee5318d7f28 100644 --- a/arch/x86/boot/compressed/eboot.h +++ b/arch/x86/boot/compressed/eboot.h @@ -85,6 +85,10 @@ struct efi_graphics_output_protocol { struct efi_graphics_output_protocol_mode *mode; }; +typedef efi_status_t (*efi_graphics_output_protocol_query_mode)( + struct efi_graphics_output_protocol *, u32, unsigned long *, + struct efi_graphics_output_mode_info **); + struct efi_uga_draw_protocol_32 { u32 get_mode; u32 set_mode; diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index 53748c45e488..10e440770371 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -225,6 +225,11 @@ __pure const struct efi_config *__efi_early(void); #define efi_call_early(f, ...) \ __efi_early()->call(__efi_early()->f, __VA_ARGS__); +#define __efi_call_early(f, ...) \ + __efi_early()->call((unsigned long)f, __VA_ARGS__); + +#define efi_is_64bit() __efi_early()->is64 + extern bool efi_reboot_required(void); #else diff --git a/include/linux/efi.h b/include/linux/efi.h index 1545098b0565..f6e7724451ca 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -21,6 +21,7 @@ #include #include #include +#include #include @@ -1318,5 +1319,9 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, efi_status_t efi_parse_options(char *cmdline); +efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg, + struct screen_info *si, efi_guid_t *proto, + unsigned long size); + bool efi_runtime_disabled(void); #endif /* _LINUX_EFI_H */