2 * PS3 Platform spu routines.
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006 Sony Corp.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/mmzone.h>
28 #include <asm/spu_priv1.h>
29 #include <asm/lv1call.h>
33 /* spu_management_ops */
36 * enum spe_type - Type of spe to create.
37 * @spe_type_logical: Standard logical spe.
39 * For use with lv1_construct_logical_spe(). The current HV does not support
40 * any types other than those listed.
48 * struct spe_shadow - logical spe shadow register area.
50 * Read-only shadow of spe registers.
54 u8 padding_0140[0x0140];
55 u64 int_status_class0_RW; /* 0x0140 */
56 u64 int_status_class1_RW; /* 0x0148 */
57 u64 int_status_class2_RW; /* 0x0150 */
58 u8 padding_0158[0x0610-0x0158];
59 u64 mfc_dsisr_RW; /* 0x0610 */
60 u8 padding_0618[0x0620-0x0618];
61 u64 mfc_dar_RW; /* 0x0620 */
62 u8 padding_0628[0x0800-0x0628];
63 u64 mfc_dsipr_R; /* 0x0800 */
64 u8 padding_0808[0x0810-0x0808];
65 u64 mfc_lscrr_R; /* 0x0810 */
66 u8 padding_0818[0x0c00-0x0818];
67 u64 mfc_cer_R; /* 0x0c00 */
68 u8 padding_0c08[0x0f00-0x0c08];
69 u64 spe_execution_status; /* 0x0f00 */
70 u8 padding_0f08[0x1000-0x0f08];
74 * enum spe_ex_state - Logical spe execution state.
75 * @spe_ex_state_unexecutable: Uninitialized.
76 * @spe_ex_state_executable: Enabled, not ready.
77 * @spe_ex_state_executed: Ready for use.
79 * The execution state (status) of the logical spe as reported in
80 * struct spe_shadow:spe_execution_status.
84 SPE_EX_STATE_UNEXECUTABLE = 0,
85 SPE_EX_STATE_EXECUTABLE = 2,
86 SPE_EX_STATE_EXECUTED = 3,
90 * struct priv1_cache - Cached values of priv1 registers.
91 * @masks[]: Array of cached spe interrupt masks, indexed by class.
92 * @sr1: Cached mfc_sr1 register.
93 * @tclass_id: Cached mfc_tclass_id register.
103 * struct spu_pdata - Platform state variables.
104 * @spe_id: HV spe id returned by lv1_construct_logical_spe().
105 * @resource_id: HV spe resource id returned by
106 * ps3_repository_read_spe_resource_id().
107 * @priv2_addr: lpar address of spe priv2 area returned by
108 * lv1_construct_logical_spe().
109 * @shadow_addr: lpar address of spe register shadow area returned by
110 * lv1_construct_logical_spe().
111 * @shadow: Virtual (ioremap) address of spe register shadow area.
112 * @cache: Cached values of priv1 registers.
120 struct spe_shadow __iomem *shadow;
121 struct priv1_cache cache;
124 static struct spu_pdata *spu_pdata(struct spu *spu)
129 #define dump_areas(_a, _b, _c, _d, _e) \
130 _dump_areas(_a, _b, _c, _d, _e, __func__, __LINE__)
131 static void _dump_areas(unsigned int spe_id, unsigned long priv2,
132 unsigned long problem, unsigned long ls, unsigned long shadow,
133 const char* func, int line)
135 pr_debug("%s:%d: spe_id: %xh (%u)\n", func, line, spe_id, spe_id);
136 pr_debug("%s:%d: priv2: %lxh\n", func, line, priv2);
137 pr_debug("%s:%d: problem: %lxh\n", func, line, problem);
138 pr_debug("%s:%d: ls: %lxh\n", func, line, ls);
139 pr_debug("%s:%d: shadow: %lxh\n", func, line, shadow);
142 static unsigned long get_vas_id(void)
146 lv1_get_logical_ppe_id(&id);
147 lv1_get_virtual_address_space_id_of_ppe(id, &id);
152 static int __init construct_spu(struct spu *spu)
155 unsigned long unused;
157 result = lv1_construct_logical_spe(PAGE_SHIFT, PAGE_SHIFT, PAGE_SHIFT,
158 PAGE_SHIFT, PAGE_SHIFT, get_vas_id(), SPE_TYPE_LOGICAL,
159 &spu_pdata(spu)->priv2_addr, &spu->problem_phys,
160 &spu->local_store_phys, &unused,
161 &spu_pdata(spu)->shadow_addr,
162 &spu_pdata(spu)->spe_id);
165 pr_debug("%s:%d: lv1_construct_logical_spe failed: %s\n",
166 __func__, __LINE__, ps3_result(result));
173 static void spu_unmap(struct spu *spu)
176 iounmap(spu->problem);
177 iounmap((__force u8 __iomem *)spu->local_store);
178 iounmap(spu_pdata(spu)->shadow);
181 static int __init setup_areas(struct spu *spu)
183 struct table {char* name; unsigned long addr; unsigned long size;};
185 spu_pdata(spu)->shadow = ioremap_flags(spu_pdata(spu)->shadow_addr,
186 sizeof(struct spe_shadow),
187 pgprot_val(PAGE_READONLY) |
189 if (!spu_pdata(spu)->shadow) {
190 pr_debug("%s:%d: ioremap shadow failed\n", __func__, __LINE__);
194 spu->local_store = (__force void *)ioremap_flags(spu->local_store_phys,
195 LS_SIZE, _PAGE_NO_CACHE);
197 if (!spu->local_store) {
198 pr_debug("%s:%d: ioremap local_store failed\n",
203 spu->problem = ioremap(spu->problem_phys,
204 sizeof(struct spu_problem));
207 pr_debug("%s:%d: ioremap problem failed\n", __func__, __LINE__);
211 spu->priv2 = ioremap(spu_pdata(spu)->priv2_addr,
212 sizeof(struct spu_priv2));
215 pr_debug("%s:%d: ioremap priv2 failed\n", __func__, __LINE__);
219 dump_areas(spu_pdata(spu)->spe_id, spu_pdata(spu)->priv2_addr,
220 spu->problem_phys, spu->local_store_phys,
221 spu_pdata(spu)->shadow_addr);
222 dump_areas(spu_pdata(spu)->spe_id, (unsigned long)spu->priv2,
223 (unsigned long)spu->problem, (unsigned long)spu->local_store,
224 (unsigned long)spu_pdata(spu)->shadow);
234 static int __init setup_interrupts(struct spu *spu)
238 result = ps3_spe_irq_setup(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
244 result = ps3_spe_irq_setup(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
250 result = ps3_spe_irq_setup(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
259 ps3_spe_irq_destroy(spu->irqs[1]);
261 ps3_spe_irq_destroy(spu->irqs[0]);
263 spu->irqs[0] = spu->irqs[1] = spu->irqs[2] = NO_IRQ;
267 static int __init enable_spu(struct spu *spu)
271 result = lv1_enable_logical_spe(spu_pdata(spu)->spe_id,
272 spu_pdata(spu)->resource_id);
275 pr_debug("%s:%d: lv1_enable_logical_spe failed: %s\n",
276 __func__, __LINE__, ps3_result(result));
280 result = setup_areas(spu);
285 result = setup_interrupts(spu);
288 goto fail_interrupts;
295 lv1_disable_logical_spe(spu_pdata(spu)->spe_id, 0);
300 static int ps3_destroy_spu(struct spu *spu)
304 pr_debug("%s:%d spu_%d\n", __func__, __LINE__, spu->number);
306 result = lv1_disable_logical_spe(spu_pdata(spu)->spe_id, 0);
309 ps3_spe_irq_destroy(spu->irqs[2]);
310 ps3_spe_irq_destroy(spu->irqs[1]);
311 ps3_spe_irq_destroy(spu->irqs[0]);
313 spu->irqs[0] = spu->irqs[1] = spu->irqs[2] = NO_IRQ;
317 result = lv1_destruct_logical_spe(spu_pdata(spu)->spe_id);
326 static int __init ps3_create_spu(struct spu *spu, void *data)
330 pr_debug("%s:%d spu_%d\n", __func__, __LINE__, spu->number);
332 spu->pdata = kzalloc(sizeof(struct spu_pdata),
340 spu_pdata(spu)->resource_id = (unsigned long)data;
342 /* Init cached reg values to HV defaults. */
344 spu_pdata(spu)->cache.sr1 = 0x33;
346 result = construct_spu(spu);
351 /* For now, just go ahead and enable it. */
353 result = enable_spu(spu);
358 /* Make sure the spu is in SPE_EX_STATE_EXECUTED. */
360 /* need something better here!!! */
361 while (in_be64(&spu_pdata(spu)->shadow->spe_execution_status)
362 != SPE_EX_STATE_EXECUTED)
369 ps3_destroy_spu(spu);
374 static int __init ps3_enumerate_spus(int (*fn)(void *data))
377 unsigned int num_resource_id;
380 result = ps3_repository_read_num_spu_resource_id(&num_resource_id);
382 pr_debug("%s:%d: num_resource_id %u\n", __func__, __LINE__,
386 * For now, just create logical spus equal to the number
387 * of physical spus reserved for the partition.
390 for (i = 0; i < num_resource_id; i++) {
391 enum ps3_spu_resource_type resource_type;
392 unsigned int resource_id;
394 result = ps3_repository_read_spu_resource_id(i,
395 &resource_type, &resource_id);
400 if (resource_type == PS3_SPU_RESOURCE_TYPE_EXCLUSIVE) {
401 result = fn((void*)(unsigned long)resource_id);
409 printk(KERN_WARNING "%s:%d: Error initializing spus\n",
414 return num_resource_id;
417 static int ps3_init_affinity(void)
422 const struct spu_management_ops spu_management_ps3_ops = {
423 .enumerate_spus = ps3_enumerate_spus,
424 .create_spu = ps3_create_spu,
425 .destroy_spu = ps3_destroy_spu,
426 .init_affinity = ps3_init_affinity,
431 static void int_mask_and(struct spu *spu, int class, u64 mask)
435 /* are these serialized by caller??? */
436 old_mask = spu_int_mask_get(spu, class);
437 spu_int_mask_set(spu, class, old_mask & mask);
440 static void int_mask_or(struct spu *spu, int class, u64 mask)
444 old_mask = spu_int_mask_get(spu, class);
445 spu_int_mask_set(spu, class, old_mask | mask);
448 static void int_mask_set(struct spu *spu, int class, u64 mask)
450 spu_pdata(spu)->cache.masks[class] = mask;
451 lv1_set_spe_interrupt_mask(spu_pdata(spu)->spe_id, class,
452 spu_pdata(spu)->cache.masks[class]);
455 static u64 int_mask_get(struct spu *spu, int class)
457 return spu_pdata(spu)->cache.masks[class];
460 static void int_stat_clear(struct spu *spu, int class, u64 stat)
462 /* Note that MFC_DSISR will be cleared when class1[MF] is set. */
464 lv1_clear_spe_interrupt_status(spu_pdata(spu)->spe_id, class,
468 static u64 int_stat_get(struct spu *spu, int class)
472 lv1_get_spe_interrupt_status(spu_pdata(spu)->spe_id, class, &stat);
476 static void cpu_affinity_set(struct spu *spu, int cpu)
481 static u64 mfc_dar_get(struct spu *spu)
483 return in_be64(&spu_pdata(spu)->shadow->mfc_dar_RW);
486 static void mfc_dsisr_set(struct spu *spu, u64 dsisr)
488 /* Nothing to do, cleared in int_stat_clear(). */
491 static u64 mfc_dsisr_get(struct spu *spu)
493 return in_be64(&spu_pdata(spu)->shadow->mfc_dsisr_RW);
496 static void mfc_sdr_setup(struct spu *spu)
501 static void mfc_sr1_set(struct spu *spu, u64 sr1)
503 /* Check bits allowed by HV. */
505 static const u64 allowed = ~(MFC_STATE1_LOCAL_STORAGE_DECODE_MASK
506 | MFC_STATE1_PROBLEM_STATE_MASK);
508 BUG_ON((sr1 & allowed) != (spu_pdata(spu)->cache.sr1 & allowed));
510 spu_pdata(spu)->cache.sr1 = sr1;
511 lv1_set_spe_privilege_state_area_1_register(
512 spu_pdata(spu)->spe_id,
513 offsetof(struct spu_priv1, mfc_sr1_RW),
514 spu_pdata(spu)->cache.sr1);
517 static u64 mfc_sr1_get(struct spu *spu)
519 return spu_pdata(spu)->cache.sr1;
522 static void mfc_tclass_id_set(struct spu *spu, u64 tclass_id)
524 spu_pdata(spu)->cache.tclass_id = tclass_id;
525 lv1_set_spe_privilege_state_area_1_register(
526 spu_pdata(spu)->spe_id,
527 offsetof(struct spu_priv1, mfc_tclass_id_RW),
528 spu_pdata(spu)->cache.tclass_id);
531 static u64 mfc_tclass_id_get(struct spu *spu)
533 return spu_pdata(spu)->cache.tclass_id;
536 static void tlb_invalidate(struct spu *spu)
541 static void resource_allocation_groupID_set(struct spu *spu, u64 id)
546 static u64 resource_allocation_groupID_get(struct spu *spu)
548 return 0; /* No support. */
551 static void resource_allocation_enable_set(struct spu *spu, u64 enable)
556 static u64 resource_allocation_enable_get(struct spu *spu)
558 return 0; /* No support. */
561 const struct spu_priv1_ops spu_priv1_ps3_ops = {
562 .int_mask_and = int_mask_and,
563 .int_mask_or = int_mask_or,
564 .int_mask_set = int_mask_set,
565 .int_mask_get = int_mask_get,
566 .int_stat_clear = int_stat_clear,
567 .int_stat_get = int_stat_get,
568 .cpu_affinity_set = cpu_affinity_set,
569 .mfc_dar_get = mfc_dar_get,
570 .mfc_dsisr_set = mfc_dsisr_set,
571 .mfc_dsisr_get = mfc_dsisr_get,
572 .mfc_sdr_setup = mfc_sdr_setup,
573 .mfc_sr1_set = mfc_sr1_set,
574 .mfc_sr1_get = mfc_sr1_get,
575 .mfc_tclass_id_set = mfc_tclass_id_set,
576 .mfc_tclass_id_get = mfc_tclass_id_get,
577 .tlb_invalidate = tlb_invalidate,
578 .resource_allocation_groupID_set = resource_allocation_groupID_set,
579 .resource_allocation_groupID_get = resource_allocation_groupID_get,
580 .resource_allocation_enable_set = resource_allocation_enable_set,
581 .resource_allocation_enable_get = resource_allocation_enable_get,
584 void ps3_spu_set_platform(void)
586 spu_priv1_ops = &spu_priv1_ps3_ops;
587 spu_management_ops = &spu_management_ps3_ops;