From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f53.google.com (mail-ed1-f53.google.com [209.85.208.53]) (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 4C1794657E0 for ; Wed, 7 Oct 2026 17:41:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791394913; cv=none; b=JEHN0lqxRxPKU2zxN7aGhd+I4CuxT7qg8hbhI2IXphYkS8fFS+XR2dfTcjAmVPUKLSywRkQVH893VYkOs+nUfIjvSwfbE9Rru6j36+trIM2+DsNLYHDOH4NxNjnkWg7iju+fUtxoo5RVmgrV2grWSoos5rspsqgf94Bt/FOJY1Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791394913; c=relaxed/simple; bh=1531Yq/nVppQGrlAquxN2x1KLWXV3EHMaR/ahEcKkNk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WKjabbVcYbzgjNj00KQGF9UkOJtGQmJbv5uEjVgOxg68SpzURm4ZkM/Ep3KnQ9CosZG+UeaBg6j3tClFPefE5ZOrXAaTiMVnZYvZdTdBB3muCVir0kxnX0WB+CABLVvkLKz6StNDpzz6hXM8EIQkroqk9V1m4PPGGS2CcNhx9gI= 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=KIz2z4hx; arc=none smtp.client-ip=209.85.208.53 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="KIz2z4hx" Received: by mail-ed1-f53.google.com with SMTP id 4fb4d7f45d1cf-6aa5d092211so7129261a12.1 for ; Wed, 07 Oct 2026 10:41:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791394908; x=1791999708; 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=cCuCzlksNfjrgkZXx3iznj1+OuURI9PaCP0uSZRfzi0=; b=KIz2z4hxLhENwpslc46/LnouryEJ73NwoEnn70UcAymNcriv3JiJCR2q5I/Yj+es3S X4RxAh7S0a+/unUZZ/yuj1Ny914FHVpG0F+yNX3QAbE2Yydck9Uu5PKoAplKQS4x1N5N ZMJDpJ5rV7DWrSJS83fcl0UuWNMENbUuue2MTtL00i2kq983CknXGSNqpA9U4/l008o1 p987ZXt4FmJp4kzIoqKFv3L8cEW3T8w7hYFmW2QhTTN13Gw79hDKHldWT4T++UxDs2S1 NlPTB1UzKOdwECixTlZwMR/PDN5yODwTCbstQo2E4tdcApw2S4nwrtDFY9JEyauAYrMK 30EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791394908; x=1791999708; 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=cCuCzlksNfjrgkZXx3iznj1+OuURI9PaCP0uSZRfzi0=; b=GR7ijXpliOio17GJgOVOxv+PE5333yxrDyV0XBMioaJPvLzZXpwxxZU9Cf1K21goPh v++RmbuhkmPgGrT3Ymx9RPribUW8xzhTURyRtPO81KQR5yXeYQhopu71vg2Vpa5Gxfym sXMiT8zVgSJQeMqskAOL6F7Nr108jagDjA+OOO6IPD+Ssran9OOvUKz1Ptm0MyaMiKje 67WnEQ1RFE2aOfEoIhIFD0rbZjpz2P40q7PKojz203Xk98gH6lN3Vijd00QRxChiFXkK TJToq6drTivh3HMW/kTpIC8nm/VQ7CpChkJ6W/l2yaDnaR6W52yIj51uQdTjRYiKDzuo GTUg== X-Forwarded-Encrypted: i=1; AKwUvBwgKP2kOY/GKfs+DFb4IGdCLDRl/RkCxan6h4N0agwfNQqSOetjGvtNHOeCKHDkupPjiYua6Zl2EhQRmfo=@vger.kernel.org X-Gm-Message-State: AFq9FYJ05EO64KI/nF/Dcn6pWRkApUnvMeF68i9yQZymmzDckQ3XM6Eq zcweoBasaQz7833aWajfOTyTLhFZUPDYJo7YN9xBb4D31yI/YAmHszg3 X-Gm-Gg: AYBFou1pOqvfFysAjdh4irAvpeXEbgT8UvtbiQozhQf+mzGk0+BT7nVjld15UAFU6hP amiLnCAAOyiXEGhniv48ybcLCiV2Ak+sGOVK2QZfzsrwMNSLvHXcnUbTbHCmYgkNgaemmG/wJ+K 9z7IdcFHdP5ZkB7R5rDM6mDzE3HJJycgk5ZYCps6NfX5L00Ktv33OzuvM6/PBvqBvG88G7dQCAl BvFJ0H4Fx7UdNmQZrizEfF2vSFSWM10MQnN88PzYDf7r/b63qtexJHcP6MCog+wvttlOO1fLhN7 pynhJud+LXiR8GQi9zVZS6I+57TaBjviJ1FJX7OO0Dep7BVQch+QiwPk1NAoLukAY0NozAgqKq5 su5SU2B/0YIx0Lw3wSk6WKbal12a8qHD1ksDNf0e2sYI7mtSMeS3olQK/VC9gNFlwQ+2lAYjyZd ZWZzCEI5AljPqtsXboQw/C5/DJUzXZG+CGaQ9BcqVn6kx/sce4GU8gxHNNcMbWy0Tfdy8zeaLYD FbwnuoJsbLGf05U/564wezgYImDBLMKWRVM62Mw0Q== X-Received: by 2002:a05:6402:21d4:b0:6ac:b013:8648 with SMTP id 4fb4d7f45d1cf-6aff47a8104mr2545139a12.35.1791394908085; Wed, 07 Oct 2026 10:41:48 -0700 (PDT) Received: from buildhost.darklands.se ([2001:9b1:ff:d701:51eb:176f:63d9:53f8]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6b009e80cd8sm356802a12.8.2026.10.07.10.41.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Oct 2026 10:41:47 -0700 (PDT) From: Magnus Lindholm To: davem@davemloft.net, andreas@gaisler.com Cc: sam@ravnborg.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linmag7@gmail.com Subject: [PATCH v5 6/6] sparc32: drop sp_banks Date: Wed, 7 Oct 2026 19:41:15 +0200 Message-ID: <20261007174128.959307-7-linmag7@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261007174128.959307-1-linmag7@gmail.com> References: <20261007174128.959307-1-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 Reviewed-by: Sam Ravnborg Signed-off-by: Magnus Lindholm --- 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 9f0b54f70908..7429291fb118 100644 --- a/arch/sparc/include/asm/page_32.h +++ b/arch/sparc/include/asm/page_32.h @@ -28,22 +28,6 @@ (void)(vaddr); \ } 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