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bd4a83428b
The Cell blade support was the last user of DCR_MMIO, so it can now be removed. That only leaves DCR_NATIVE, meaning the DCR generic layer which allows using either DCR_NATIVE or DCR_MMIO is also unnecessary, remove it too. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20241218105523.416573-7-mpe@ellerman.id.au
40 lines
910 B
C
40 lines
910 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
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* <benh@kernel.crashing.org>
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*/
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#undef DEBUG
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#include <linux/kernel.h>
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#include <linux/export.h>
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#include <linux/of_address.h>
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#include <asm/dcr.h>
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unsigned int dcr_resource_start(const struct device_node *np,
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unsigned int index)
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{
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unsigned int ds;
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const u32 *dr = of_get_property(np, "dcr-reg", &ds);
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if (dr == NULL || ds & 1 || index >= (ds / 8))
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return 0;
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return dr[index * 2];
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}
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EXPORT_SYMBOL_GPL(dcr_resource_start);
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unsigned int dcr_resource_len(const struct device_node *np, unsigned int index)
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{
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unsigned int ds;
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const u32 *dr = of_get_property(np, "dcr-reg", &ds);
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if (dr == NULL || ds & 1 || index >= (ds / 8))
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return 0;
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return dr[index * 2 + 1];
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}
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EXPORT_SYMBOL_GPL(dcr_resource_len);
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DEFINE_SPINLOCK(dcr_ind_lock);
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EXPORT_SYMBOL_GPL(dcr_ind_lock);
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