From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f44.google.com (mail-ej1-f44.google.com [209.85.218.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC04F3B42EB for ; Sun, 30 Aug 2026 12:08:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788091690; cv=none; b=G0UnGlleV2QunzltsUFxl9rSRWlEAc6aD9o4ntqI1JStOI93h+9pi0+/TJXJmPLYU9H/JxamZXGaPhS0roSCOeOJrue2wuw1/s2YFmlrZ5PF8CifACOD0ZLtpE9LrmJsz/bgftDLd563fgO3zdSIYrB0xf8TlLhoo0ZLCYTh0Vo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788091690; c=relaxed/simple; bh=GDJx9sH2sNSxbOwzq4dSkcb9spfCBs4Kvg21wjvIkiU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RO6TcguDWqrR1PDk4Uwz96qJMOFgUXYpup9IarCbTdYvoWvW8oqJboDIdNBR7z5cmbTlpdbMRWV/Y6Zs4t6RoGKXb115U4oPOpKEODac3fzJWhQQVsGhpFbPFLy7yLkbWIJIEyVQq9K4o4tRdwd9AmwllDnsfX9UaCtIKNg9Ehk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=CFLPu4uK; arc=none smtp.client-ip=209.85.218.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CFLPu4uK" Received: by mail-ej1-f44.google.com with SMTP id a640c23a62f3a-c2533d83e3bso413246866b.2 for ; Sun, 30 Aug 2026 05:08:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1788091685; x=1788696485; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=lUPNB03Hug6YvdWlUe1liatgYB+MaJgHVJDKZWHDKdE=; b=CFLPu4uKCZul6140KnpiCnhhjx+KR35Okf911O+j1ko+ghts3HT12yu+AZE853YteA +C32reSHb41OY9MxxdOTecUhHfxYW/TgJYowTyZMAtL2RNFymo2IDZbo2dtwPmIdKlGe HA79jEwysrOp1rIvj4UKDn6npfGtUs0ilVSmBUtdh7nJA3jih7Fg6RmaAEAgGfVv/54A YoHK8RFsLGALdPDkOFw3J+tUuZ25m24UKtbJmuDqPcfDbBzJkrAt01/x1mGkmw6RC2l0 HCWyQUpnzJR7sFeQw4h4/j7LKIrjPD9gu4wIALNmAYZa27Bjdlj7trdACO8JGTM+F5DW Y5JA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788091685; x=1788696485; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=lUPNB03Hug6YvdWlUe1liatgYB+MaJgHVJDKZWHDKdE=; b=rxWPxwNL0Fs4+3rxr8iSwCDGehR8PQtPbiLu2a4yN5V9Xx7PPMO/qgo5qp+47H4fjN 7mlyYxlSw4n//cpmFNKwLyCS7cddafy6pjbPcDjJgZOlApM9WttRp/prfzbzth4Lo4iN TrITQObAjNQPeOCBvjAbv4ATBT2kczfkQZQXGmYU72mPslUxAzDTGPbpoI7HRfim50BJ ROOOEdFIO/TMPYI0mIEBjb12YKiSXrHquEjwoc6/wnEauV5BGiE41wts1xT94ZDVsqef NJKFh4rK/upXTstISUs0dhhQD96hLB4fnf9zEK+ey60F0fHW3V3tgXGKdWsfWyOmYRPx w76Q== X-Forwarded-Encrypted: i=1; AHgh+Rrh8y4TtnhxUstmbILzXfXbVv0JHiekiXdiDRSK5gSf8KI6TyStbD3hrZCgSK/JdlBrgT2A/9dfm/fVufE=@vger.kernel.org X-Gm-Message-State: AFuF++lQz4Y+K/EIA/l1NUCuVHBBZSjlv7OKwf1LOMjyM5slp8h7113R +oKdVdJUvCkp75Cds95c7AuVh33svGO0MllQpAIVPmooqr32kWLP+zkt X-Gm-Gg: AR+sD13z9qSDBythIVnBKFqluy49t+WR3kl0eS4+m0Zxy3V3O8S+WHnXLtfNdzCKzyy oHJegITULqtNqWDWUMRQA4d9jCGwh1PAnBnLj4v/lJhMyKZn3IdfFGinElVn7to3AECvTTYQ+pH QS0JrA6/vnRCXTEk3XU2eNhq60QEyOjLn/6FxPkX3UgHYqLI4QpaY37pecPB5fMGVd2WDaRaVwh QBWb66k2ISCfkLsY8sKXChe2YwdiodYwSyh5OnTv8YdM9p+kACqVfmh+pFqv6nuGTENcIf7COQx OM1hOZr79egYfKt/oepRqluDORd+sB73Oc6FYXneAzaD42GESDRwAry/cA8bOFdMbSitk49b7HH 2Nd8j8Z4Ti7S0/FCeA0oHERx527lYgxNeem4W3Am7C/N3dKMNSwUIE3nCOHHe2gDGiB76smwbD3 ToT873nERCGTpuNGT5XAlmI29VB5xZDZAuYSBvAM5ozlPU3JeE3NWlrywKI1Tp26wOa7PGNyDci bzPDF8L0gJaTajkbL7kLnhF4AxYRX0= X-Received: by 2002:a17:907:9810:b0:c25:5114:c832 with SMTP id a640c23a62f3a-c2556bd290bmr1242333066b.3.1788091684609; Sun, 30 Aug 2026 05:08:04 -0700 (PDT) Received: from buildhost.darklands.se ([2001:9b1:ff:d701:51eb:176f:63d9:53f8]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c255ee09eb6sm304287966b.10.2026.08.30.05.08.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Aug 2026 05:08:04 -0700 (PDT) From: Magnus Lindholm To: sparclinux@vger.kernel.org Cc: davem@davemloft.net, andreas@gaisler.com, linux-kernel@vger.kernel.org, sam@ravnborg.org, glaubitz@physik.fu-berlin.de, Magnus Lindholm Subject: [PATCH v2 6/6] sparc32: drop sp_banks Date: Sun, 30 Aug 2026 14:06:45 +0200 Message-ID: <20260830120742.20950-7-linmag7@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260830120742.20950-1-linmag7@gmail.com> References: <20260830120742.20950-1-linmag7@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit All memory-map consumers now use memblock. Stop duplicating the PROM map in sp_banks and remove the array, its type, and its fixed bank limit. Suggested-by: Sam Ravnborg Signed-off-by: Magnus Lindholm Reviewed-by: Sam Ravnborg --- arch/sparc/include/asm/page_32.h | 16 ----------- arch/sparc/mm/init_32.c | 2 -- arch/sparc/prom/memory.c | 48 ++++---------------------------- 3 files changed, 6 insertions(+), 60 deletions(-) diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h index c1bccbedf567..5daa5fd8eaa5 100644 --- a/arch/sparc/include/asm/page_32.h +++ b/arch/sparc/include/asm/page_32.h @@ -26,22 +26,6 @@ sparc_flush_page_to_ram(page); \ } while (0) -/* The following structure is used to hold the physical - * memory configuration of the machine. This is filled in - * prom_meminit() and is later used by mem_init() to set up - * mem_map[]. We statically allocate SPARC_PHYS_BANKS+1 of - * these structs, this is arbitrary. The entry after the - * last valid one has num_bytes==0. - */ -struct sparc_phys_banks { - unsigned long base_addr; - unsigned long num_bytes; -}; - -#define SPARC_PHYS_BANKS 32 - -extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1]; - /* passing structs on the Sparc slow us down tremendously... */ /* #define STRICT_MM_TYPECHECKS */ diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index ac4462f1cf76..2f693b70dbd8 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -35,8 +35,6 @@ #include "mm_32.h" -struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1]; - /* Initial ramdisk setup */ extern unsigned int sparc_ramdisk_image; extern unsigned int sparc_ramdisk_size; diff --git a/arch/sparc/prom/memory.c b/arch/sparc/prom/memory.c index 59962bc0bc82..3f65bde2bb89 100644 --- a/arch/sparc/prom/memory.c +++ b/arch/sparc/prom/memory.c @@ -8,30 +8,21 @@ #include #include -#include #include #include #include #include -static int __init prom_meminit_v0(void) +static void __init prom_meminit_v0(void) { struct linux_mlist_v0 *p; - int index; - index = 0; - for (p = *(romvec->pv_v0mem.v0_available); p; p = p->theres_more) { - sp_banks[index].base_addr = (unsigned long) p->start_adr; - sp_banks[index].num_bytes = p->num_bytes; + for (p = *(romvec->pv_v0mem.v0_available); p; p = p->theres_more) memblock_add(p->start_adr, p->num_bytes & PAGE_MASK); - index++; - } - - return index; } -static int __init prom_meminit_v2(void) +static void __init prom_meminit_v2(void) { struct linux_prom_registers reg[64]; phandle node; @@ -41,51 +32,24 @@ static int __init prom_meminit_v2(void) size = prom_getproperty(node, "available", (char *) reg, sizeof(reg)); num_ents = size / sizeof(struct linux_prom_registers); - for (i = 0; i < num_ents; i++) { - sp_banks[i].base_addr = reg[i].phys_addr; - sp_banks[i].num_bytes = reg[i].reg_size; + for (i = 0; i < num_ents; i++) memblock_add(reg[i].phys_addr, reg[i].reg_size & PAGE_MASK); - } - - return num_ents; -} - -static int sp_banks_cmp(const void *a, const void *b) -{ - const struct sparc_phys_banks *x = a, *y = b; - - if (x->base_addr > y->base_addr) - return 1; - if (x->base_addr < y->base_addr) - return -1; - return 0; } /* Initialize the memory lists based upon the prom version. */ void __init prom_meminit(void) { - int i, num_ents = 0; - switch (prom_vers) { case PROM_V0: - num_ents = prom_meminit_v0(); + prom_meminit_v0(); break; case PROM_V2: case PROM_V3: - num_ents = prom_meminit_v2(); + prom_meminit_v2(); break; default: break; } - sort(sp_banks, num_ents, sizeof(struct sparc_phys_banks), - sp_banks_cmp, NULL); - - /* Sentinel. */ - sp_banks[num_ents].base_addr = 0xdeadbeef; - sp_banks[num_ents].num_bytes = 0; - - for (i = 0; i < num_ents; i++) - sp_banks[i].num_bytes &= PAGE_MASK; } -- 2.43.0