From patchwork Tue Dec 19 22:03:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Ravnborg via B4 Relay X-Patchwork-Id: 13499231 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 ADE1040BFC; Tue, 19 Dec 2023 22:03:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u8k9tG6i" Received: by smtp.kernel.org (Postfix) with ESMTPS id 90686C116B6; Tue, 19 Dec 2023 22:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1703023396; bh=Xx5e5JXE5o3eSx1BDCkTaoAn1nu0Tcx74g9aZDg0gdg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=u8k9tG6iBmhBCtOjUZAoi5aPfizQ3FYNoD/I2iLaI20nlTBj0mVS07YAPto+7abY+ aQdvyxNU+nsIpscUGSpQ05lqt5JYbMeHh3ZFiNorItQwD8lfq5Zbtlr7xLmrNz+pk1 eIHPfRjJTOotDHzAULpIJbx1HIR/5KPbc1Zy5N9C80RBn4cxrk4N6EdIE/C1eOcmJG UurNyNIAzmI9BPdsS8xS/6dY23M1CyWfXEFIft9RTzs+vHvmf4Om/8AkRJOee2ZUQt JwXbAFrqIT39HzdThRb37oV4Ak9nEPJ+zRNfN6By98SdDfVYskgEtJv2Y2wcWHcZMM ENIEQdSNp7KCQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80118C46CD2; Tue, 19 Dec 2023 22:03:16 +0000 (UTC) From: Sam Ravnborg via B4 Relay Date: Tue, 19 Dec 2023 23:03:28 +0100 Subject: [PATCH 23/27] sparc32: Drop unused trampoline code Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231219-sam-sparc32-sunset-v3-v1-23-64bb44b598c5@ravnborg.org> References: <20231219-sam-sparc32-sunset-v3-v1-0-64bb44b598c5@ravnborg.org> In-Reply-To: <20231219-sam-sparc32-sunset-v3-v1-0-64bb44b598c5@ravnborg.org> To: "David S. Miller" , Arnd Bergmann , Andreas Larsson Cc: Helge Deller , Alexander Viro , Greg Kroah-Hartman , Alan Stern , Jaroslav Kysela , Takashi Iwai , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sound@vger.kernel.org, Sam Ravnborg X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1703023392; l=4127; i=sam@ravnborg.org; s=20230107; h=from:subject:message-id; bh=uzksINTbhFvBhLNvlUDgb4UOBHR2yU8G2Z2Ss1msiEI=; =?utf-8?q?b=3DIu2To745+yyR?= =?utf-8?q?3EXnr2Zb0eY4uBlUFnm81YV0HjegE5uRvg7LKgAC0vaYfDXXenG6hZOVFuslEMQx?= fAACjGtqBIxq2YSBw8iT3MawaikYyK0oFDUMkVfpYUZAPSnF0xtb X-Developer-Key: i=sam@ravnborg.org; a=ed25519; pk=R0+pqV7BRYOAeOIGkyOrSNke7arx5y3LkEuNi37YEyU= X-Endpoint-Received: by B4 Relay for sam@ravnborg.org/20230107 with auth_id=22 X-Original-From: Sam Ravnborg Reply-To: From: Sam Ravnborg Drop the sun4m and sun4d code from trampoline_32 Signed-off-by: Sam Ravnborg Cc: "David S. Miller" Cc: Arnd Bergmann Cc: Andreas Larsson --- arch/sparc/kernel/kernel.h | 3 +- arch/sparc/kernel/trampoline_32.S | 127 +------------------------------------- 2 files changed, 3 insertions(+), 127 deletions(-) diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h index 30adbec894f7..aea96b6b881c 100644 --- a/arch/sparc/kernel/kernel.h +++ b/arch/sparc/kernel/kernel.h @@ -112,8 +112,7 @@ extern unsigned int real_irq_entry[]; extern unsigned int smp4d_ticker[]; /* trampoline_32.S */ -extern unsigned long sun4m_cpu_startup; -extern unsigned long sun4d_cpu_startup; +void leon_smp_cpu_startup(int boot_cpu); /* signal_32.c */ asmlinkage void do_sigreturn(struct pt_regs *regs); diff --git a/arch/sparc/kernel/trampoline_32.S b/arch/sparc/kernel/trampoline_32.S index 82fafeeb3a62..685b20923f6b 100644 --- a/arch/sparc/kernel/trampoline_32.S +++ b/arch/sparc/kernel/trampoline_32.S @@ -15,136 +15,12 @@ #include #include - .globl sun4m_cpu_startup - .globl sun4d_cpu_startup - - .align 4 - /* When we start up a cpu for the first time it enters this routine. * This initializes the chip from whatever state the prom left it * in and sets PIL in %psr to 15, no irqs. */ - -sun4m_cpu_startup: -cpu1_startup: - sethi %hi(trapbase_cpu1), %g3 - b 1f - or %g3, %lo(trapbase_cpu1), %g3 - -cpu2_startup: - sethi %hi(trapbase_cpu2), %g3 - b 1f - or %g3, %lo(trapbase_cpu2), %g3 - -cpu3_startup: - sethi %hi(trapbase_cpu3), %g3 - b 1f - or %g3, %lo(trapbase_cpu3), %g3 - -1: - /* Set up a sane %psr -- PIL<0xf> S<0x1> PS<0x1> CWP<0x0> */ - set (PSR_PIL | PSR_S | PSR_PS), %g1 - wr %g1, 0x0, %psr ! traps off though - WRITE_PAUSE - - /* Our %wim is one behind CWP */ - mov 2, %g1 - wr %g1, 0x0, %wim - WRITE_PAUSE - - /* This identifies "this cpu". */ - wr %g3, 0x0, %tbr - WRITE_PAUSE - - /* Give ourselves a stack and curptr. */ - set current_set, %g5 - srl %g3, 10, %g4 - and %g4, 0xc, %g4 - ld [%g5 + %g4], %g6 - - sethi %hi(THREAD_SIZE - STACKFRAME_SZ), %sp - or %sp, %lo(THREAD_SIZE - STACKFRAME_SZ), %sp - add %g6, %sp, %sp - - /* Turn on traps (PSR_ET). */ - rd %psr, %g1 - wr %g1, PSR_ET, %psr ! traps on - WRITE_PAUSE - - /* Init our caches, etc. */ - set poke_srmmu, %g5 - ld [%g5], %g5 - call %g5 - nop - - /* Start this processor. */ - call smp_callin - nop - - b,a smp_panic - .text .align 4 - -smp_panic: - call cpu_panic - nop - -/* CPUID in bootbus can be found at PA 0xff0140000 */ -#define SUN4D_BOOTBUS_CPUID 0xf0140000 - - .align 4 - -sun4d_cpu_startup: - /* Set up a sane %psr -- PIL<0xf> S<0x1> PS<0x1> CWP<0x0> */ - set (PSR_PIL | PSR_S | PSR_PS), %g1 - wr %g1, 0x0, %psr ! traps off though - WRITE_PAUSE - - /* Our %wim is one behind CWP */ - mov 2, %g1 - wr %g1, 0x0, %wim - WRITE_PAUSE - - /* Set tbr - we use just one trap table. */ - set trapbase, %g1 - wr %g1, 0x0, %tbr - WRITE_PAUSE - - /* Get our CPU id out of bootbus */ - set SUN4D_BOOTBUS_CPUID, %g3 - lduba [%g3] ASI_M_CTL, %g3 - and %g3, 0xf8, %g3 - srl %g3, 3, %g1 - sta %g1, [%g0] ASI_M_VIKING_TMP1 - - /* Give ourselves a stack and curptr. */ - set current_set, %g5 - srl %g3, 1, %g4 - ld [%g5 + %g4], %g6 - - sethi %hi(THREAD_SIZE - STACKFRAME_SZ), %sp - or %sp, %lo(THREAD_SIZE - STACKFRAME_SZ), %sp - add %g6, %sp, %sp - - /* Turn on traps (PSR_ET). */ - rd %psr, %g1 - wr %g1, PSR_ET, %psr ! traps on - WRITE_PAUSE - - /* Init our caches, etc. */ - set poke_srmmu, %g5 - ld [%g5], %g5 - call %g5 - nop - - /* Start this processor. */ - call smp_callin - nop - - b,a smp_panic - - .align 4 .global leon_smp_cpu_startup, smp_penguin_ctable leon_smp_cpu_startup: @@ -198,4 +74,5 @@ leon_smp_cpu_startup: call smp_callin nop - b,a smp_panic + b,a cpu_panic + nop