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-rw-r--r--arch/x86/mach-generic/numaq.c277
1 files changed, 0 insertions, 277 deletions
diff --git a/arch/x86/mach-generic/numaq.c b/arch/x86/mach-generic/numaq.c
deleted file mode 100644
index c221cfb2c2db..000000000000
--- a/arch/x86/mach-generic/numaq.c
+++ /dev/null
@@ -1,277 +0,0 @@
1/*
2 * APIC driver for the IBM NUMAQ chipset.
3 */
4#define APIC_DEFINITION 1
5#include <linux/threads.h>
6#include <linux/cpumask.h>
7#include <asm/mpspec.h>
8#include <asm/genapic.h>
9#include <asm/fixmap.h>
10#include <asm/apicdef.h>
11#include <linux/kernel.h>
12#include <linux/string.h>
13#include <linux/init.h>
14#include <linux/numa.h>
15#include <linux/smp.h>
16#include <asm/numaq.h>
17#include <asm/io.h>
18#include <linux/mmzone.h>
19#include <linux/nodemask.h>
20
21#define NUMAQ_APIC_DFR_VALUE (APIC_DFR_CLUSTER)
22
23static inline unsigned int numaq_get_apic_id(unsigned long x)
24{
25 return (x >> 24) & 0x0F;
26}
27
28void default_send_IPI_mask_sequence(const struct cpumask *mask, int vector);
29void default_send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
30
31static inline void numaq_send_IPI_mask(const struct cpumask *mask, int vector)
32{
33 default_send_IPI_mask_sequence(mask, vector);
34}
35
36static inline void numaq_send_IPI_allbutself(int vector)
37{
38 default_send_IPI_mask_allbutself(cpu_online_mask, vector);
39}
40
41static inline void numaq_send_IPI_all(int vector)
42{
43 numaq_send_IPI_mask(cpu_online_mask, vector);
44}
45
46extern void numaq_mps_oem_check(struct mpc_table *, char *, char *);
47
48#define NUMAQ_TRAMPOLINE_PHYS_LOW (0x8)
49#define NUMAQ_TRAMPOLINE_PHYS_HIGH (0xa)
50
51/*
52 * Because we use NMIs rather than the INIT-STARTUP sequence to
53 * bootstrap the CPUs, the APIC may be in a weird state. Kick it:
54 */
55static inline void numaq_smp_callin_clear_local_apic(void)
56{
57 clear_local_APIC();
58}
59
60static inline void
61numaq_store_NMI_vector(unsigned short *high, unsigned short *low)
62{
63 printk("Storing NMI vector\n");
64 *high =
65 *((volatile unsigned short *)phys_to_virt(NUMAQ_TRAMPOLINE_PHYS_HIGH));
66 *low =
67 *((volatile unsigned short *)phys_to_virt(NUMAQ_TRAMPOLINE_PHYS_LOW));
68}
69
70static inline const cpumask_t *numaq_target_cpus(void)
71{
72 return &CPU_MASK_ALL;
73}
74
75static inline unsigned long
76numaq_check_apicid_used(physid_mask_t bitmap, int apicid)
77{
78 return physid_isset(apicid, bitmap);
79}
80
81static inline unsigned long numaq_check_apicid_present(int bit)
82{
83 return physid_isset(bit, phys_cpu_present_map);
84}
85
86#define apicid_cluster(apicid) (apicid & 0xF0)
87
88static inline int numaq_apic_id_registered(void)
89{
90 return 1;
91}
92
93static inline void numaq_init_apic_ldr(void)
94{
95 /* Already done in NUMA-Q firmware */
96}
97
98static inline void numaq_setup_apic_routing(void)
99{
100 printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
101 "NUMA-Q", nr_ioapics);
102}
103
104/*
105 * Skip adding the timer int on secondary nodes, which causes
106 * a small but painful rift in the time-space continuum.
107 */
108static inline int numaq_multi_timer_check(int apic, int irq)
109{
110 return apic != 0 && irq == 0;
111}
112
113static inline physid_mask_t numaq_ioapic_phys_id_map(physid_mask_t phys_map)
114{
115 /* We don't have a good way to do this yet - hack */
116 return physids_promote(0xFUL);
117}
118
119/* Mapping from cpu number to logical apicid */
120extern u8 cpu_2_logical_apicid[];
121
122static inline int numaq_cpu_to_logical_apicid(int cpu)
123{
124 if (cpu >= nr_cpu_ids)
125 return BAD_APICID;
126 return (int)cpu_2_logical_apicid[cpu];
127}
128
129/*
130 * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
131 * cpu to APIC ID relation to properly interact with the intelligent
132 * mode of the cluster controller.
133 */
134static inline int numaq_cpu_present_to_apicid(int mps_cpu)
135{
136 if (mps_cpu < 60)
137 return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
138 else
139 return BAD_APICID;
140}
141
142static inline int numaq_apicid_to_node(int logical_apicid)
143{
144 return logical_apicid >> 4;
145}
146
147static inline physid_mask_t numaq_apicid_to_cpu_present(int logical_apicid)
148{
149 int node = numaq_apicid_to_node(logical_apicid);
150 int cpu = __ffs(logical_apicid & 0xf);
151
152 return physid_mask_of_physid(cpu + 4*node);
153}
154
155extern void *xquad_portio;
156
157static inline int numaq_check_phys_apicid_present(int boot_cpu_physical_apicid)
158{
159 return 1;
160}
161
162/*
163 * We use physical apicids here, not logical, so just return the default
164 * physical broadcast to stop people from breaking us
165 */
166static inline unsigned int numaq_cpu_mask_to_apicid(const cpumask_t *cpumask)
167{
168 return 0x0F;
169}
170
171static inline unsigned int
172numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
173 const struct cpumask *andmask)
174{
175 return 0x0F;
176}
177
178/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
179static inline int numaq_phys_pkg_id(int cpuid_apic, int index_msb)
180{
181 return cpuid_apic >> index_msb;
182}
183static int __numaq_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
184{
185 numaq_mps_oem_check(mpc, oem, productid);
186 return found_numaq;
187}
188
189static int probe_numaq(void)
190{
191 /* already know from get_memcfg_numaq() */
192 return found_numaq;
193}
194
195static void numaq_vector_allocation_domain(int cpu, cpumask_t *retmask)
196{
197 /* Careful. Some cpus do not strictly honor the set of cpus
198 * specified in the interrupt destination when using lowest
199 * priority interrupt delivery mode.
200 *
201 * In particular there was a hyperthreading cpu observed to
202 * deliver interrupts to the wrong hyperthread when only one
203 * hyperthread was specified in the interrupt desitination.
204 */
205 *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
206}
207
208static void numaq_setup_portio_remap(void)
209{
210 int num_quads = num_online_nodes();
211
212 if (num_quads <= 1)
213 return;
214
215 printk("Remapping cross-quad port I/O for %d quads\n", num_quads);
216 xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
217 printk("xquad_portio vaddr 0x%08lx, len %08lx\n",
218 (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
219}
220
221struct genapic apic_numaq = {
222
223 .name = "NUMAQ",
224 .probe = probe_numaq,
225 .acpi_madt_oem_check = NULL,
226 .apic_id_registered = numaq_apic_id_registered,
227
228 .irq_delivery_mode = dest_LowestPrio,
229 /* physical delivery on LOCAL quad: */
230 .irq_dest_mode = 0,
231
232 .target_cpus = numaq_target_cpus,
233 .disable_esr = 1,
234 .dest_logical = APIC_DEST_LOGICAL,
235 .check_apicid_used = numaq_check_apicid_used,
236 .check_apicid_present = numaq_check_apicid_present,
237
238 .vector_allocation_domain = numaq_vector_allocation_domain,
239 .init_apic_ldr = numaq_init_apic_ldr,
240
241 .ioapic_phys_id_map = numaq_ioapic_phys_id_map,
242 .setup_apic_routing = numaq_setup_apic_routing,
243 .multi_timer_check = numaq_multi_timer_check,
244 .apicid_to_node = numaq_apicid_to_node,
245 .cpu_to_logical_apicid = numaq_cpu_to_logical_apicid,
246 .cpu_present_to_apicid = numaq_cpu_present_to_apicid,
247 .apicid_to_cpu_present = numaq_apicid_to_cpu_present,
248 .setup_portio_remap = numaq_setup_portio_remap,
249 .check_phys_apicid_present = numaq_check_phys_apicid_present,
250 .enable_apic_mode = NULL,
251 .phys_pkg_id = numaq_phys_pkg_id,
252 .mps_oem_check = __numaq_mps_oem_check,
253
254 .get_apic_id = numaq_get_apic_id,
255 .set_apic_id = NULL,
256 .apic_id_mask = 0x0F << 24,
257
258 .cpu_mask_to_apicid = numaq_cpu_mask_to_apicid,
259 .cpu_mask_to_apicid_and = numaq_cpu_mask_to_apicid_and,
260
261 .send_IPI_mask = numaq_send_IPI_mask,
262 .send_IPI_mask_allbutself = NULL,
263 .send_IPI_allbutself = numaq_send_IPI_allbutself,
264 .send_IPI_all = numaq_send_IPI_all,
265 .send_IPI_self = NULL,
266
267 .wakeup_cpu = NULL,
268 .trampoline_phys_low = NUMAQ_TRAMPOLINE_PHYS_LOW,
269 .trampoline_phys_high = NUMAQ_TRAMPOLINE_PHYS_HIGH,
270
271 /* We don't do anything here because we use NMI's to boot instead */
272 .wait_for_init_deassert = NULL,
273
274 .smp_callin_clear_local_apic = numaq_smp_callin_clear_local_apic,
275 .store_NMI_vector = numaq_store_NMI_vector,
276 .inquire_remote_apic = NULL,
277};
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-17 04:03:55 -0500