1 files changed, 0 insertions, 298 deletions
diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c
deleted file mode 100644
index 99b3558753e9..000000000000
--- a/arch/powerpc/platforms/cell/cbe_regs.c
+++ /dev/null
@@ -1,298 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * cbe_regs.c
- *
- * Accessor routines for the various MMIO register blocks of the CBE
- *
- * (c) 2006 Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
- */
-
-#include <linux/percpu.h>
-#include <linux/types.h>
-#include <linux/export.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/pgtable.h>
-
-#include <asm/io.h>
-#include <asm/ptrace.h>
-#include <asm/cell-regs.h>
-
-/*
- * Current implementation uses "cpu" nodes. We build our own mapping
- * array of cpu numbers to cpu nodes locally for now to allow interrupt
- * time code to have a fast path rather than call of_get_cpu_node(). If
- * we implement cpu hotplug, we'll have to install an appropriate notifier
- * in order to release references to the cpu going away
- */
-static struct cbe_regs_map
-{
-	struct device_node *cpu_node;
-	struct device_node *be_node;
-	struct cbe_pmd_regs __iomem *pmd_regs;
-	struct cbe_iic_regs __iomem *iic_regs;
-	struct cbe_mic_tm_regs __iomem *mic_tm_regs;
-	struct cbe_pmd_shadow_regs pmd_shadow_regs;
-} cbe_regs_maps[MAX_CBE];
-static int cbe_regs_map_count;
-
-static struct cbe_thread_map
-{
-	struct device_node *cpu_node;
-	struct device_node *be_node;
-	struct cbe_regs_map *regs;
-	unsigned int thread_id;
-	unsigned int cbe_id;
-} cbe_thread_map[NR_CPUS];
-
-static cpumask_t cbe_local_mask[MAX_CBE] = { [0 ... MAX_CBE-1] = {CPU_BITS_NONE} };
-static cpumask_t cbe_first_online_cpu = { CPU_BITS_NONE };
-
-static struct cbe_regs_map *cbe_find_map(struct device_node *np)
-{
-	int i;
-	struct device_node *tmp_np;
-
-	if (!of_node_is_type(np, "spe")) {
-		for (i = 0; i < cbe_regs_map_count; i++)
-			if (cbe_regs_maps[i].cpu_node == np ||
-			    cbe_regs_maps[i].be_node == np)
-				return &cbe_regs_maps[i];
-		return NULL;
-	}
-
-	if (np->data)
-		return np->data;
-
-	/* walk up path until cpu or be node was found */
-	tmp_np = np;
-	do {
-		tmp_np = tmp_np->parent;
-		/* on a correct devicetree we wont get up to root */
-		BUG_ON(!tmp_np);
-	} while (!of_node_is_type(tmp_np, "cpu") ||
-		 !of_node_is_type(tmp_np, "be"));
-
-	np->data = cbe_find_map(tmp_np);
-
-	return np->data;
-}
-
-struct cbe_pmd_regs __iomem *cbe_get_pmd_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return map->pmd_regs;
-}
-EXPORT_SYMBOL_GPL(cbe_get_pmd_regs);
-
-struct cbe_pmd_regs __iomem *cbe_get_cpu_pmd_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return map->pmd_regs;
-}
-EXPORT_SYMBOL_GPL(cbe_get_cpu_pmd_regs);
-
-struct cbe_pmd_shadow_regs *cbe_get_pmd_shadow_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return &map->pmd_shadow_regs;
-}
-
-struct cbe_pmd_shadow_regs *cbe_get_cpu_pmd_shadow_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return &map->pmd_shadow_regs;
-}
-
-struct cbe_iic_regs __iomem *cbe_get_iic_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return map->iic_regs;
-}
-
-struct cbe_iic_regs __iomem *cbe_get_cpu_iic_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return map->iic_regs;
-}
-
-struct cbe_mic_tm_regs __iomem *cbe_get_mic_tm_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return map->mic_tm_regs;
-}
-
-struct cbe_mic_tm_regs __iomem *cbe_get_cpu_mic_tm_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return map->mic_tm_regs;
-}
-EXPORT_SYMBOL_GPL(cbe_get_cpu_mic_tm_regs);
-
-u32 cbe_get_hw_thread_id(int cpu)
-{
-	return cbe_thread_map[cpu].thread_id;
-}
-EXPORT_SYMBOL_GPL(cbe_get_hw_thread_id);
-
-u32 cbe_cpu_to_node(int cpu)
-{
-	return cbe_thread_map[cpu].cbe_id;
-}
-EXPORT_SYMBOL_GPL(cbe_cpu_to_node);
-
-u32 cbe_node_to_cpu(int node)
-{
-	return cpumask_first(&cbe_local_mask[node]);
-
-}
-EXPORT_SYMBOL_GPL(cbe_node_to_cpu);
-
-static struct device_node *__init cbe_get_be_node(int cpu_id)
-{
-	struct device_node *np;
-
-	for_each_node_by_type (np, "be") {
-		int len,i;
-		const phandle *cpu_handle;
-
-		cpu_handle = of_get_property(np, "cpus", &len);
-
-		/*
-		 * the CAB SLOF tree is non compliant, so we just assume
-		 * there is only one node
-		 */
-		if (WARN_ON_ONCE(!cpu_handle))
-			return np;
-
-		for (i = 0; i < len; i++) {
-			struct device_node *ch_np = of_find_node_by_phandle(cpu_handle[i]);
-			struct device_node *ci_np = of_get_cpu_node(cpu_id, NULL);
-
-			of_node_put(ch_np);
-			of_node_put(ci_np);
-
-			if (ch_np == ci_np)
-				return np;
-		}
-	}
-
-	return NULL;
-}
-
-static void __init cbe_fill_regs_map(struct cbe_regs_map *map)
-{
-	if(map->be_node) {
-		struct device_node *be, *np, *parent_np;
-
-		be = map->be_node;
-
-		for_each_node_by_type(np, "pervasive") {
-			parent_np = of_get_parent(np);
-			if (parent_np == be)
-				map->pmd_regs = of_iomap(np, 0);
-			of_node_put(parent_np);
-		}
-
-		for_each_node_by_type(np, "CBEA-Internal-Interrupt-Controller") {
-			parent_np = of_get_parent(np);
-			if (parent_np == be)
-				map->iic_regs = of_iomap(np, 2);
-			of_node_put(parent_np);
-		}
-
-		for_each_node_by_type(np, "mic-tm") {
-			parent_np = of_get_parent(np);
-			if (parent_np == be)
-				map->mic_tm_regs = of_iomap(np, 0);
-			of_node_put(parent_np);
-		}
-	} else {
-		struct device_node *cpu;
-		/* That hack must die die die ! */
-		const struct address_prop {
-			unsigned long address;
-			unsigned int len;
-		} __attribute__((packed)) *prop;
-
-		cpu = map->cpu_node;
-
-		prop = of_get_property(cpu, "pervasive", NULL);
-		if (prop != NULL)
-			map->pmd_regs = ioremap(prop->address, prop->len);
-
-		prop = of_get_property(cpu, "iic", NULL);
-		if (prop != NULL)
-			map->iic_regs = ioremap(prop->address, prop->len);
-
-		prop = of_get_property(cpu, "mic-tm", NULL);
-		if (prop != NULL)
-			map->mic_tm_regs = ioremap(prop->address, prop->len);
-	}
-}
-
-
-void __init cbe_regs_init(void)
-{
-	int i;
-	unsigned int thread_id;
-	struct device_node *cpu;
-
-	/* Build local fast map of CPUs */
-	for_each_possible_cpu(i) {
-		cbe_thread_map[i].cpu_node = of_get_cpu_node(i, &thread_id);
-		cbe_thread_map[i].be_node = cbe_get_be_node(i);
-		cbe_thread_map[i].thread_id = thread_id;
-	}
-
-	/* Find maps for each device tree CPU */
-	for_each_node_by_type(cpu, "cpu") {
-		struct cbe_regs_map *map;
-		unsigned int cbe_id;
-
-		cbe_id = cbe_regs_map_count++;
-		map = &cbe_regs_maps[cbe_id];
-
-		if (cbe_regs_map_count > MAX_CBE) {
-			printk(KERN_ERR "cbe_regs: More BE chips than supported"
-			       "!\n");
-			cbe_regs_map_count--;
-			of_node_put(cpu);
-			return;
-		}
-		of_node_put(map->cpu_node);
-		map->cpu_node = of_node_get(cpu);
-
-		for_each_possible_cpu(i) {
-			struct cbe_thread_map *thread = &cbe_thread_map[i];
-
-			if (thread->cpu_node == cpu) {
-				thread->regs = map;
-				thread->cbe_id = cbe_id;
-				map->be_node = thread->be_node;
-				cpumask_set_cpu(i, &cbe_local_mask[cbe_id]);
-				if(thread->thread_id == 0)
-					cpumask_set_cpu(i, &cbe_first_online_cpu);
-			}
-		}
-
-		cbe_fill_regs_map(map);
-	}
-}
-