From patchwork Tue Dec 19 22:03:25 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: 13499222 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 92508405D6; 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="hiFZYARL" Received: by smtp.kernel.org (Postfix) with ESMTPS id 74334C116B3; 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=bLoZlXD+uyujBiI2QIHjJyBWQ7WHglpOzYi0YEMALhI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=hiFZYARLvw+cpesK+MbG5CFYiNTMuLIBzfQOKzXeuvXzZzQM1qg6OMJD5YXWDasX5 zJdVqmsufRiCvLG67nWP0AxNoWTK+GDBOHgkKDH9k12Oxi2O9haAV8gW8NX9kdY4nH 3ngMfjm56Ltl/gXRG67TIvkk8TPfvJTxF/h7ykgrpDbsSZYVxah5vlmrMHYGopjYlv 72sYg21txveDBj2hC0Up40rped7bdo69Q2p3inl4mVPmNvz7p9Qb+8VTCBBhjN2+SF VZdAopWgK4gxmjG3GVWyer30Fy5r9oNx7WRSRfdUKeohDqGv7btdHOUP3jf4mb92lT 7rygtWgpV4l7w== 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 5DA0CC41535; Tue, 19 Dec 2023 22:03:16 +0000 (UTC) From: Sam Ravnborg via B4 Relay Date: Tue, 19 Dec 2023 23:03:25 +0100 Subject: [PATCH 20/27] sparc32: Drop unused prom ranges support 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-v1-20-64bb44b598c5@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=6494; i=sam@ravnborg.org; s=20230107; h=from:subject:message-id; bh=JWUMPYjeM7nZeaLhzjjM6ATuORPYfX7XPb+WWflq45I=; =?utf-8?q?b=3DpeEDLnJfNsDv?= =?utf-8?q?bMEUyLIfk5KCN4dAImCHU1GZ0JD0n/cOF0IpbTfq7Erj+RhLDOeOO0ivzmtmiCOY?= w+qPEBwLCvTPNLWgyuz3ImztuQA+VjR0A01A3WxdeMxU5GIypt81 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 support for prom ranges - not used anymore. Signed-off-by: Sam Ravnborg Cc: "David S. Miller" Cc: Arnd Bergmann Cc: Andreas Larsson --- arch/sparc/include/asm/oplib_32.h | 11 ---- arch/sparc/prom/Makefile | 1 - arch/sparc/prom/init_32.c | 2 - arch/sparc/prom/ranges.c | 114 -------------------------------------- 4 files changed, 128 deletions(-) diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index d1cf3a27a40d..4ef7f05978d3 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -163,17 +163,6 @@ int prom_setprop(phandle node, const char *prop_name, char *prop_value, phandle prom_inst2pkg(int); -/* Dorking with Bus ranges... */ - -/* Apply promlib probes OBIO ranges to registers. */ -void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs); - -/* Apply ranges of any prom node (and optionally parent node as well) to registers. */ -void prom_apply_generic_ranges(phandle node, phandle parent, - struct linux_prom_registers *sbusregs, int nregs); - -void prom_ranges_init(void); - /* CPU probing helpers. */ int cpu_find_by_instance(int instance, phandle *prom_node, int *mid); int cpu_find_by_mid(int mid, phandle *prom_node); diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile index 397b79af77f7..6d94d8b28bcf 100644 --- a/arch/sparc/prom/Makefile +++ b/arch/sparc/prom/Makefile @@ -10,7 +10,6 @@ lib-y += init_$(BITS).o lib-$(CONFIG_SPARC32) += memory.o lib-y += misc_$(BITS).o lib-$(CONFIG_SPARC32) += mp.o -lib-$(CONFIG_SPARC32) += ranges.o lib-y += console_$(BITS).o lib-y += printf.o lib-y += tree_$(BITS).o diff --git a/arch/sparc/prom/init_32.c b/arch/sparc/prom/init_32.c index d20470166cb1..1681f1f980d4 100644 --- a/arch/sparc/prom/init_32.c +++ b/arch/sparc/prom/init_32.c @@ -67,8 +67,6 @@ void __init prom_init(struct linux_romvec *rp) prom_meminit(); - prom_ranges_init(); - printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n", romvec->pv_romvers, prom_rev); diff --git a/arch/sparc/prom/ranges.c b/arch/sparc/prom/ranges.c deleted file mode 100644 index 20cb828bc5f4..000000000000 --- a/arch/sparc/prom/ranges.c +++ /dev/null @@ -1,114 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * ranges.c: Handle ranges in newer proms for obio/sbus. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include -#include - -#include -#include -#include - -static struct linux_prom_ranges promlib_obio_ranges[PROMREG_MAX]; -static int num_obio_ranges; - -/* Adjust register values based upon the ranges parameters. */ -static void prom_adjust_regs(struct linux_prom_registers *regp, int nregs, - struct linux_prom_ranges *rangep, int nranges) -{ - int regc, rngc; - - for (regc = 0; regc < nregs; regc++) { - for (rngc = 0; rngc < nranges; rngc++) - if (regp[regc].which_io == rangep[rngc].ot_child_space) - break; /* Fount it */ - if (rngc == nranges) /* oops */ - prom_printf("adjust_regs: Could not find range with matching bus type...\n"); - regp[regc].which_io = rangep[rngc].ot_parent_space; - regp[regc].phys_addr -= rangep[rngc].ot_child_base; - regp[regc].phys_addr += rangep[rngc].ot_parent_base; - } -} - -static void prom_adjust_ranges(struct linux_prom_ranges *ranges1, int nranges1, - struct linux_prom_ranges *ranges2, int nranges2) -{ - int rng1c, rng2c; - - for (rng1c = 0; rng1c < nranges1; rng1c++) { - for (rng2c = 0; rng2c < nranges2; rng2c++) - if (ranges1[rng1c].ot_parent_space == ranges2[rng2c].ot_child_space && - ranges1[rng1c].ot_parent_base >= ranges2[rng2c].ot_child_base && - ranges2[rng2c].ot_child_base + ranges2[rng2c].or_size - ranges1[rng1c].ot_parent_base > 0U) - break; - if (rng2c == nranges2) /* oops */ - prom_printf("adjust_ranges: Could not find matching bus type...\n"); - else if (ranges1[rng1c].ot_parent_base + ranges1[rng1c].or_size > ranges2[rng2c].ot_child_base + ranges2[rng2c].or_size) - ranges1[rng1c].or_size = ranges2[rng2c].ot_child_base + ranges2[rng2c].or_size - ranges1[rng1c].ot_parent_base; - ranges1[rng1c].ot_parent_space = ranges2[rng2c].ot_parent_space; - ranges1[rng1c].ot_parent_base += ranges2[rng2c].ot_parent_base; - } -} - -/* Apply probed obio ranges to registers passed, if no ranges return. */ -void prom_apply_obio_ranges(struct linux_prom_registers *regs, int nregs) -{ - if (num_obio_ranges) - prom_adjust_regs(regs, nregs, promlib_obio_ranges, num_obio_ranges); -} -EXPORT_SYMBOL(prom_apply_obio_ranges); - -void __init prom_ranges_init(void) -{ - phandle node, obio_node; - int success; - - num_obio_ranges = 0; - - /* Check for obio and sbus ranges. */ - node = prom_getchild(prom_root_node); - obio_node = prom_searchsiblings(node, "obio"); - - if (obio_node) { - success = prom_getproperty(obio_node, "ranges", - (char *) promlib_obio_ranges, - sizeof(promlib_obio_ranges)); - if (success != -1) - num_obio_ranges = (success / sizeof(struct linux_prom_ranges)); - } - - if (num_obio_ranges) - prom_printf("PROMLIB: obio_ranges %d\n", num_obio_ranges); -} - -void prom_apply_generic_ranges(phandle node, phandle parent, - struct linux_prom_registers *regs, int nregs) -{ - int success; - int num_ranges; - struct linux_prom_ranges ranges[PROMREG_MAX]; - - success = prom_getproperty(node, "ranges", - (char *) ranges, - sizeof(ranges)); - if (success != -1) { - num_ranges = (success / sizeof(struct linux_prom_ranges)); - if (parent) { - struct linux_prom_ranges parent_ranges[PROMREG_MAX]; - int num_parent_ranges; - - success = prom_getproperty(parent, "ranges", - (char *) parent_ranges, - sizeof(parent_ranges)); - if (success != -1) { - num_parent_ranges = (success / sizeof(struct linux_prom_ranges)); - prom_adjust_ranges(ranges, num_ranges, parent_ranges, num_parent_ranges); - } - } - prom_adjust_regs(regs, nregs, ranges, num_ranges); - } -}