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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 13:45:23 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 13:45:23 -0400
commit02b2318e07f98a7cdf7089a4457a8d62424aa824 (patch)
treeb40353a9ee6b034e21192ceb5df445fbc5fbdd32 /include/asm-sparc64
parentb91cba52e9b7b3f1c0037908a192d93a869ca9e5 (diff)
parentd54bc2793ec3405c6b8f217568a82b87bd8a591b (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (26 commits) [SPARC64]: Fix UP build. [SPARC64]: dr-cpu unconfigure support. [SERIAL]: Fix console write locking in sparc drivers. [SPARC64]: Give more accurate errors in dr_cpu_configure(). [SPARC64]: Clear cpu_{core,sibling}_map[] in smp_fill_in_sib_core_maps() [SPARC64]: Fix leak when DR added cpu does not bootup. [SPARC64]: Add ->set_affinity IRQ handlers. [SPARC64]: Process dr-cpu events in a kthread instead of workqueue. [SPARC64]: More sensible udelay implementation. [SPARC64]: SMP build fixes. [SPARC64]: mdesc.c needs linux/mm.h [SPARC64]: Fix build regressions added by dr-cpu changes. [SPARC64]: Unconditionally register vio_bus_type. [SPARC64]: Initial LDOM cpu hotplug support. [SPARC64]: Fix setting of variables in LDOM guest. [SPARC64]: Fix MD property lifetime bugs. [SPARC64]: Abstract out mdesc accesses for better MD update handling. [SPARC64]: Use more mearningful names for IRQ registry. [SPARC64]: Initial domain-services driver. [SPARC64]: Export powerd facilities for external entities. ...
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/bugs.h5
-rw-r--r--include/asm-sparc64/cpudata.h5
-rw-r--r--include/asm-sparc64/delay.h32
-rw-r--r--include/asm-sparc64/hvtramp.h37
-rw-r--r--include/asm-sparc64/hypervisor.h2
-rw-r--r--include/asm-sparc64/irq.h2
-rw-r--r--include/asm-sparc64/ldc.h138
-rw-r--r--include/asm-sparc64/mdesc.h88
-rw-r--r--include/asm-sparc64/mmu_context.h3
-rw-r--r--include/asm-sparc64/power.h7
-rw-r--r--include/asm-sparc64/smp.h11
-rw-r--r--include/asm-sparc64/vio.h404
12 files changed, 665 insertions, 69 deletions
diff --git a/include/asm-sparc64/bugs.h b/include/asm-sparc64/bugs.h
index bf39d86c0c9e..11ade6841971 100644
--- a/include/asm-sparc64/bugs.h
+++ b/include/asm-sparc64/bugs.h
@@ -4,12 +4,7 @@
4 */ 4 */
5#include <asm/sstate.h> 5#include <asm/sstate.h>
6 6
7extern unsigned long loops_per_jiffy;
8
9static void __init check_bugs(void) 7static void __init check_bugs(void)
10{ 8{
11#ifndef CONFIG_SMP
12 cpu_data(0).udelay_val = loops_per_jiffy;
13#endif
14 sstate_running(); 9 sstate_running();
15} 10}
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 445026fbec35..98a6e609163e 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -19,7 +19,7 @@ typedef struct {
19 unsigned int __softirq_pending; /* must be 1st, see rtrap.S */ 19 unsigned int __softirq_pending; /* must be 1st, see rtrap.S */
20 unsigned int __pad0; 20 unsigned int __pad0;
21 unsigned long clock_tick; /* %tick's per second */ 21 unsigned long clock_tick; /* %tick's per second */
22 unsigned long udelay_val; 22 unsigned long __pad;
23 unsigned int __pad1; 23 unsigned int __pad1;
24 unsigned int __pad2; 24 unsigned int __pad2;
25 25
@@ -80,7 +80,8 @@ struct trap_per_cpu {
80 unsigned int dev_mondo_qmask; 80 unsigned int dev_mondo_qmask;
81 unsigned int resum_qmask; 81 unsigned int resum_qmask;
82 unsigned int nonresum_qmask; 82 unsigned int nonresum_qmask;
83 unsigned int __pad2[3]; 83 unsigned int __pad2[1];
84 void *hdesc;
84} __attribute__((aligned(64))); 85} __attribute__((aligned(64)));
85extern struct trap_per_cpu trap_block[NR_CPUS]; 86extern struct trap_per_cpu trap_block[NR_CPUS];
86extern void init_cur_cpu_trap(struct thread_info *); 87extern void init_cur_cpu_trap(struct thread_info *);
diff --git a/include/asm-sparc64/delay.h b/include/asm-sparc64/delay.h
index a4aae6f80627..a77aa622d762 100644
--- a/include/asm-sparc64/delay.h
+++ b/include/asm-sparc64/delay.h
@@ -1,37 +1,17 @@
1/* delay.h: Linux delay routines on sparc64. 1/* delay.h: Linux delay routines on sparc64.
2 * 2 *
3 * Copyright (C) 1996, 2004 David S. Miller (davem@davemloft.net). 3 * Copyright (C) 1996, 2004, 2007 David S. Miller (davem@davemloft.net).
4 *
5 * Based heavily upon x86 variant which is:
6 * Copyright (C) 1993 Linus Torvalds
7 *
8 * Delay routines calling functions in arch/sparc64/lib/delay.c
9 */ 4 */
10 5
11#ifndef __SPARC64_DELAY_H 6#ifndef _SPARC64_DELAY_H
12#define __SPARC64_DELAY_H 7#define _SPARC64_DELAY_H
13
14#include <linux/param.h>
15#include <asm/cpudata.h>
16 8
17#ifndef __ASSEMBLY__ 9#ifndef __ASSEMBLY__
18 10
19extern void __bad_udelay(void);
20extern void __bad_ndelay(void);
21
22extern void __udelay(unsigned long usecs);
23extern void __ndelay(unsigned long nsecs);
24extern void __const_udelay(unsigned long usecs);
25extern void __delay(unsigned long loops); 11extern void __delay(unsigned long loops);
26 12extern void udelay(unsigned long usecs);
27#define udelay(n) (__builtin_constant_p(n) ? \ 13#define mdelay(n) udelay((n) * 1000)
28 ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
29 __udelay(n))
30
31#define ndelay(n) (__builtin_constant_p(n) ? \
32 ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
33 __ndelay(n))
34 14
35#endif /* !__ASSEMBLY__ */ 15#endif /* !__ASSEMBLY__ */
36 16
37#endif /* defined(__SPARC64_DELAY_H) */ 17#endif /* _SPARC64_DELAY_H */
diff --git a/include/asm-sparc64/hvtramp.h b/include/asm-sparc64/hvtramp.h
new file mode 100644
index 000000000000..c7dd6ad056df
--- /dev/null
+++ b/include/asm-sparc64/hvtramp.h
@@ -0,0 +1,37 @@
1#ifndef _SPARC64_HVTRAP_H
2#define _SPARC64_HVTRAP_H
3
4#ifndef __ASSEMBLY__
5
6#include <linux/types.h>
7
8struct hvtramp_mapping {
9 __u64 vaddr;
10 __u64 tte;
11};
12
13struct hvtramp_descr {
14 __u32 cpu;
15 __u32 num_mappings;
16 __u64 fault_info_va;
17 __u64 fault_info_pa;
18 __u64 thread_reg;
19 struct hvtramp_mapping maps[2];
20};
21
22extern void hv_cpu_startup(unsigned long hvdescr_pa);
23
24#endif
25
26#define HVTRAMP_DESCR_CPU 0x00
27#define HVTRAMP_DESCR_NUM_MAPPINGS 0x04
28#define HVTRAMP_DESCR_FAULT_INFO_VA 0x08
29#define HVTRAMP_DESCR_FAULT_INFO_PA 0x10
30#define HVTRAMP_DESCR_THREAD_REG 0x18
31#define HVTRAMP_DESCR_MAPS 0x20
32
33#define HVTRAMP_MAPPING_VADDR 0x00
34#define HVTRAMP_MAPPING_TTE 0x08
35#define HVTRAMP_MAPPING_SIZE 0x10
36
37#endif /* _SPARC64_HVTRAP_H */
diff --git a/include/asm-sparc64/hypervisor.h b/include/asm-sparc64/hypervisor.h
index db2130a95d68..524d49835dfd 100644
--- a/include/asm-sparc64/hypervisor.h
+++ b/include/asm-sparc64/hypervisor.h
@@ -98,7 +98,7 @@
98#define HV_FAST_MACH_EXIT 0x00 98#define HV_FAST_MACH_EXIT 0x00
99 99
100#ifndef __ASSEMBLY__ 100#ifndef __ASSEMBLY__
101extern void sun4v_mach_exit(unsigned long exit_core); 101extern void sun4v_mach_exit(unsigned long exit_code);
102#endif 102#endif
103 103
104/* Domain services. */ 104/* Domain services. */
diff --git a/include/asm-sparc64/irq.h b/include/asm-sparc64/irq.h
index 90781e34a95c..e6c436ef9356 100644
--- a/include/asm-sparc64/irq.h
+++ b/include/asm-sparc64/irq.h
@@ -53,6 +53,8 @@ extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p,
53extern void sun4v_destroy_msi(unsigned int virt_irq); 53extern void sun4v_destroy_msi(unsigned int virt_irq);
54extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); 54extern unsigned int sbus_build_irq(void *sbus, unsigned int ino);
55 55
56extern void fixup_irqs(void);
57
56static __inline__ void set_softint(unsigned long bits) 58static __inline__ void set_softint(unsigned long bits)
57{ 59{
58 __asm__ __volatile__("wr %0, 0x0, %%set_softint" 60 __asm__ __volatile__("wr %0, 0x0, %%set_softint"
diff --git a/include/asm-sparc64/ldc.h b/include/asm-sparc64/ldc.h
new file mode 100644
index 000000000000..bdb524a7b814
--- /dev/null
+++ b/include/asm-sparc64/ldc.h
@@ -0,0 +1,138 @@
1#ifndef _SPARC64_LDC_H
2#define _SPARC64_LDC_H
3
4#include <asm/hypervisor.h>
5
6extern int ldom_domaining_enabled;
7extern void ldom_set_var(const char *var, const char *value);
8extern void ldom_reboot(const char *boot_command);
9extern void ldom_power_off(void);
10
11/* The event handler will be evoked when link state changes
12 * or data becomes available on the receive side.
13 *
14 * For non-RAW links, if the LDC_EVENT_RESET event arrives the
15 * driver should reset all of it's internal state and reinvoke
16 * ldc_connect() to try and bring the link up again.
17 *
18 * For RAW links, ldc_connect() is not used. Instead the driver
19 * just waits for the LDC_EVENT_UP event.
20 */
21struct ldc_channel_config {
22 void (*event)(void *arg, int event);
23
24 u32 mtu;
25 unsigned int rx_irq;
26 unsigned int tx_irq;
27 u8 mode;
28#define LDC_MODE_RAW 0x00
29#define LDC_MODE_UNRELIABLE 0x01
30#define LDC_MODE_RESERVED 0x02
31#define LDC_MODE_STREAM 0x03
32
33 u8 debug;
34#define LDC_DEBUG_HS 0x01
35#define LDC_DEBUG_STATE 0x02
36#define LDC_DEBUG_RX 0x04
37#define LDC_DEBUG_TX 0x08
38#define LDC_DEBUG_DATA 0x10
39};
40
41#define LDC_EVENT_RESET 0x01
42#define LDC_EVENT_UP 0x02
43#define LDC_EVENT_DATA_READY 0x04
44
45#define LDC_STATE_INVALID 0x00
46#define LDC_STATE_INIT 0x01
47#define LDC_STATE_BOUND 0x02
48#define LDC_STATE_READY 0x03
49#define LDC_STATE_CONNECTED 0x04
50
51struct ldc_channel;
52
53/* Allocate state for a channel. */
54extern struct ldc_channel *ldc_alloc(unsigned long id,
55 const struct ldc_channel_config *cfgp,
56 void *event_arg);
57
58/* Shut down and free state for a channel. */
59extern void ldc_free(struct ldc_channel *lp);
60
61/* Register TX and RX queues of the link with the hypervisor. */
62extern int ldc_bind(struct ldc_channel *lp, const char *name);
63
64/* For non-RAW protocols we need to complete a handshake before
65 * communication can proceed. ldc_connect() does that, if the
66 * handshake completes successfully, an LDC_EVENT_UP event will
67 * be sent up to the driver.
68 */
69extern int ldc_connect(struct ldc_channel *lp);
70extern int ldc_disconnect(struct ldc_channel *lp);
71
72extern int ldc_state(struct ldc_channel *lp);
73
74/* Read and write operations. Only valid when the link is up. */
75extern int ldc_write(struct ldc_channel *lp, const void *buf,
76 unsigned int size);
77extern int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size);
78
79#define LDC_MAP_SHADOW 0x01
80#define LDC_MAP_DIRECT 0x02
81#define LDC_MAP_IO 0x04
82#define LDC_MAP_R 0x08
83#define LDC_MAP_W 0x10
84#define LDC_MAP_X 0x20
85#define LDC_MAP_RW (LDC_MAP_R | LDC_MAP_W)
86#define LDC_MAP_RWX (LDC_MAP_R | LDC_MAP_W | LDC_MAP_X)
87#define LDC_MAP_ALL 0x03f
88
89struct ldc_trans_cookie {
90 u64 cookie_addr;
91 u64 cookie_size;
92};
93
94struct scatterlist;
95extern int ldc_map_sg(struct ldc_channel *lp,
96 struct scatterlist *sg, int num_sg,
97 struct ldc_trans_cookie *cookies, int ncookies,
98 unsigned int map_perm);
99
100extern int ldc_map_single(struct ldc_channel *lp,
101 void *buf, unsigned int len,
102 struct ldc_trans_cookie *cookies, int ncookies,
103 unsigned int map_perm);
104
105extern void ldc_unmap(struct ldc_channel *lp, struct ldc_trans_cookie *cookies,
106 int ncookies);
107
108extern int ldc_copy(struct ldc_channel *lp, int copy_dir,
109 void *buf, unsigned int len, unsigned long offset,
110 struct ldc_trans_cookie *cookies, int ncookies);
111
112static inline int ldc_get_dring_entry(struct ldc_channel *lp,
113 void *buf, unsigned int len,
114 unsigned long offset,
115 struct ldc_trans_cookie *cookies,
116 int ncookies)
117{
118 return ldc_copy(lp, LDC_COPY_IN, buf, len, offset, cookies, ncookies);
119}
120
121static inline int ldc_put_dring_entry(struct ldc_channel *lp,
122 void *buf, unsigned int len,
123 unsigned long offset,
124 struct ldc_trans_cookie *cookies,
125 int ncookies)
126{
127 return ldc_copy(lp, LDC_COPY_OUT, buf, len, offset, cookies, ncookies);
128}
129
130extern void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len,
131 struct ldc_trans_cookie *cookies,
132 int *ncookies, unsigned int map_perm);
133
134extern void ldc_free_exp_dring(struct ldc_channel *lp, void *buf,
135 unsigned int len,
136 struct ldc_trans_cookie *cookies, int ncookies);
137
138#endif /* _SPARC64_LDC_H */
diff --git a/include/asm-sparc64/mdesc.h b/include/asm-sparc64/mdesc.h
index c6383982b53d..e97c43133752 100644
--- a/include/asm-sparc64/mdesc.h
+++ b/include/asm-sparc64/mdesc.h
@@ -2,38 +2,66 @@
2#define _SPARC64_MDESC_H 2#define _SPARC64_MDESC_H
3 3
4#include <linux/types.h> 4#include <linux/types.h>
5#include <linux/cpumask.h>
5#include <asm/prom.h> 6#include <asm/prom.h>
6 7
7struct mdesc_node; 8struct mdesc_handle;
8struct mdesc_arc { 9
9 const char *name; 10/* Machine description operations are to be surrounded by grab and
10 struct mdesc_node *arc; 11 * release calls. The mdesc_handle returned from the grab is
11}; 12 * the first argument to all of the operational calls that work
12 13 * on mdescs.
13struct mdesc_node { 14 */
14 const char *name; 15extern struct mdesc_handle *mdesc_grab(void);
15 u64 node; 16extern void mdesc_release(struct mdesc_handle *);
16 unsigned int unique_id; 17
17 unsigned int num_arcs; 18#define MDESC_NODE_NULL (~(u64)0)
18 unsigned int irqs[2]; 19
19 struct property *properties; 20extern u64 mdesc_node_by_name(struct mdesc_handle *handle,
20 struct mdesc_node *hash_next; 21 u64 from_node, const char *name);
21 struct mdesc_node *allnodes_next; 22#define mdesc_for_each_node_by_name(__hdl, __node, __name) \
22 struct mdesc_arc arcs[0]; 23 for (__node = mdesc_node_by_name(__hdl, MDESC_NODE_NULL, __name); \
23}; 24 (__node) != MDESC_NODE_NULL; \
24 25 __node = mdesc_node_by_name(__hdl, __node, __name))
25extern struct mdesc_node *md_find_node_by_name(struct mdesc_node *from, 26
26 const char *name); 27/* Access to property values returned from mdesc_get_property() are
27#define md_for_each_node_by_name(__mn, __name) \ 28 * only valid inside of a mdesc_grab()/mdesc_release() sequence.
28 for (__mn = md_find_node_by_name(NULL, __name); __mn; \ 29 * Once mdesc_release() is called, the memory backed up by these
29 __mn = md_find_node_by_name(__mn, __name)) 30 * pointers may reference freed up memory.
30 31 *
31extern struct property *md_find_property(const struct mdesc_node *mp, 32 * Therefore callers must make copies of any property values
32 const char *name, 33 * they need.
33 int *lenp); 34 *
34extern const void *md_get_property(const struct mdesc_node *mp, 35 * These same rules apply to mdesc_node_name().
35 const char *name, 36 */
36 int *lenp); 37extern const void *mdesc_get_property(struct mdesc_handle *handle,
38 u64 node, const char *name, int *lenp);
39extern const char *mdesc_node_name(struct mdesc_handle *hp, u64 node);
40
41/* MD arc iteration, the standard sequence is:
42 *
43 * unsigned long arc;
44 * mdesc_for_each_arc(arc, handle, node, MDESC_ARC_TYPE_{FWD,BACK}) {
45 * unsigned long target = mdesc_arc_target(handle, arc);
46 * ...
47 * }
48 */
49
50#define MDESC_ARC_TYPE_FWD "fwd"
51#define MDESC_ARC_TYPE_BACK "back"
52
53extern u64 mdesc_next_arc(struct mdesc_handle *handle, u64 from,
54 const char *arc_type);
55#define mdesc_for_each_arc(__arc, __hdl, __node, __type) \
56 for (__arc = mdesc_next_arc(__hdl, __node, __type); \
57 (__arc) != MDESC_NODE_NULL; \
58 __arc = mdesc_next_arc(__hdl, __arc, __type))
59
60extern u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc);
61
62extern void mdesc_update(void);
63
64extern void mdesc_fill_in_cpu_data(cpumask_t mask);
37 65
38extern void sun4v_mdesc_init(void); 66extern void sun4v_mdesc_init(void);
39 67
diff --git a/include/asm-sparc64/mmu_context.h b/include/asm-sparc64/mmu_context.h
index 8d129032013e..9fc225ed5500 100644
--- a/include/asm-sparc64/mmu_context.h
+++ b/include/asm-sparc64/mmu_context.h
@@ -76,6 +76,9 @@ static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, str
76 unsigned long ctx_valid, flags; 76 unsigned long ctx_valid, flags;
77 int cpu; 77 int cpu;
78 78
79 if (unlikely(mm == &init_mm))
80 return;
81
79 spin_lock_irqsave(&mm->context.lock, flags); 82 spin_lock_irqsave(&mm->context.lock, flags);
80 ctx_valid = CTX_VALID(mm->context); 83 ctx_valid = CTX_VALID(mm->context);
81 if (!ctx_valid) 84 if (!ctx_valid)
diff --git a/include/asm-sparc64/power.h b/include/asm-sparc64/power.h
new file mode 100644
index 000000000000..94495c1ac4f6
--- /dev/null
+++ b/include/asm-sparc64/power.h
@@ -0,0 +1,7 @@
1#ifndef _SPARC64_POWER_H
2#define _SPARC64_POWER_H
3
4extern void wake_up_powerd(void);
5extern int start_powerd(void);
6
7#endif /* !(_SPARC64_POWER_H) */
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h
index 4fb8c4bfb848..e8a96a31761b 100644
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -29,9 +29,6 @@
29#include <asm/bitops.h> 29#include <asm/bitops.h>
30#include <asm/atomic.h> 30#include <asm/atomic.h>
31 31
32extern cpumask_t phys_cpu_present_map;
33#define cpu_possible_map phys_cpu_present_map
34
35extern cpumask_t cpu_sibling_map[NR_CPUS]; 32extern cpumask_t cpu_sibling_map[NR_CPUS];
36extern cpumask_t cpu_core_map[NR_CPUS]; 33extern cpumask_t cpu_core_map[NR_CPUS];
37extern int sparc64_multi_core; 34extern int sparc64_multi_core;
@@ -44,7 +41,12 @@ extern int hard_smp_processor_id(void);
44#define raw_smp_processor_id() (current_thread_info()->cpu) 41#define raw_smp_processor_id() (current_thread_info()->cpu)
45 42
46extern void smp_fill_in_sib_core_maps(void); 43extern void smp_fill_in_sib_core_maps(void);
47extern unsigned char boot_cpu_id; 44extern void cpu_play_dead(void);
45
46#ifdef CONFIG_HOTPLUG_CPU
47extern int __cpu_disable(void);
48extern void __cpu_die(unsigned int cpu);
49#endif
48 50
49#endif /* !(__ASSEMBLY__) */ 51#endif /* !(__ASSEMBLY__) */
50 52
@@ -52,7 +54,6 @@ extern unsigned char boot_cpu_id;
52 54
53#define hard_smp_processor_id() 0 55#define hard_smp_processor_id() 0
54#define smp_fill_in_sib_core_maps() do { } while (0) 56#define smp_fill_in_sib_core_maps() do { } while (0)
55#define boot_cpu_id (0)
56 57
57#endif /* !(CONFIG_SMP) */ 58#endif /* !(CONFIG_SMP) */
58 59
diff --git a/include/asm-sparc64/vio.h b/include/asm-sparc64/vio.h
new file mode 100644
index 000000000000..83c96422e9d6
--- /dev/null
+++ b/include/asm-sparc64/vio.h
@@ -0,0 +1,404 @@
1#ifndef _SPARC64_VIO_H
2#define _SPARC64_VIO_H
3
4#include <linux/kernel.h>
5#include <linux/device.h>
6#include <linux/mod_devicetable.h>
7#include <linux/timer.h>
8#include <linux/spinlock.h>
9#include <linux/completion.h>
10#include <linux/list.h>
11
12#include <asm/ldc.h>
13#include <asm/mdesc.h>
14
15struct vio_msg_tag {
16 u8 type;
17#define VIO_TYPE_CTRL 0x01
18#define VIO_TYPE_DATA 0x02
19#define VIO_TYPE_ERR 0x04
20
21 u8 stype;
22#define VIO_SUBTYPE_INFO 0x01
23#define VIO_SUBTYPE_ACK 0x02
24#define VIO_SUBTYPE_NACK 0x04
25
26 u16 stype_env;
27#define VIO_VER_INFO 0x0001
28#define VIO_ATTR_INFO 0x0002
29#define VIO_DRING_REG 0x0003
30#define VIO_DRING_UNREG 0x0004
31#define VIO_RDX 0x0005
32#define VIO_PKT_DATA 0x0040
33#define VIO_DESC_DATA 0x0041
34#define VIO_DRING_DATA 0x0042
35#define VNET_MCAST_INFO 0x0101
36
37 u32 sid;
38};
39
40struct vio_rdx {
41 struct vio_msg_tag tag;
42 u64 resv[6];
43};
44
45struct vio_ver_info {
46 struct vio_msg_tag tag;
47 u16 major;
48 u16 minor;
49 u8 dev_class;
50#define VDEV_NETWORK 0x01
51#define VDEV_NETWORK_SWITCH 0x02
52#define VDEV_DISK 0x03
53#define VDEV_DISK_SERVER 0x04
54
55 u8 resv1[3];
56 u64 resv2[5];
57};
58
59struct vio_dring_register {
60 struct vio_msg_tag tag;
61 u64 dring_ident;
62 u32 num_descr;
63 u32 descr_size;
64 u16 options;
65#define VIO_TX_DRING 0x0001
66#define VIO_RX_DRING 0x0002
67 u16 resv;
68 u32 num_cookies;
69 struct ldc_trans_cookie cookies[0];
70};
71
72struct vio_dring_unregister {
73 struct vio_msg_tag tag;
74 u64 dring_ident;
75 u64 resv[5];
76};
77
78/* Data transfer modes */
79#define VIO_PKT_MODE 0x01 /* Packet based transfer */
80#define VIO_DESC_MODE 0x02 /* In-band descriptors */
81#define VIO_DRING_MODE 0x03 /* Descriptor rings */
82
83struct vio_dring_data {
84 struct vio_msg_tag tag;
85 u64 seq;
86 u64 dring_ident;
87 u32 start_idx;
88 u32 end_idx;
89 u8 state;
90#define VIO_DRING_ACTIVE 0x01
91#define VIO_DRING_STOPPED 0x02
92
93 u8 __pad1;
94 u16 __pad2;
95 u32 __pad3;
96 u64 __par4[2];
97};
98
99struct vio_dring_hdr {
100 u8 state;
101#define VIO_DESC_FREE 0x01
102#define VIO_DESC_READY 0x02
103#define VIO_DESC_ACCEPTED 0x03
104#define VIO_DESC_DONE 0x04
105 u8 ack;
106#define VIO_ACK_ENABLE 0x01
107#define VIO_ACK_DISABLE 0x00
108
109 u16 __pad1;
110 u32 __pad2;
111};
112
113/* VIO disk specific structures and defines */
114struct vio_disk_attr_info {
115 struct vio_msg_tag tag;
116 u8 xfer_mode;
117 u8 vdisk_type;
118#define VD_DISK_TYPE_SLICE 0x01 /* Slice in block device */
119#define VD_DISK_TYPE_DISK 0x02 /* Entire block device */
120 u16 resv1;
121 u32 vdisk_block_size;
122 u64 operations;
123 u64 vdisk_size;
124 u64 max_xfer_size;
125 u64 resv2[2];
126};
127
128struct vio_disk_desc {
129 struct vio_dring_hdr hdr;
130 u64 req_id;
131 u8 operation;
132#define VD_OP_BREAD 0x01 /* Block read */
133#define VD_OP_BWRITE 0x02 /* Block write */
134#define VD_OP_FLUSH 0x03 /* Flush disk contents */
135#define VD_OP_GET_WCE 0x04 /* Get write-cache status */
136#define VD_OP_SET_WCE 0x05 /* Enable/disable write-cache */
137#define VD_OP_GET_VTOC 0x06 /* Get VTOC */
138#define VD_OP_SET_VTOC 0x07 /* Set VTOC */
139#define VD_OP_GET_DISKGEOM 0x08 /* Get disk geometry */
140#define VD_OP_SET_DISKGEOM 0x09 /* Set disk geometry */
141#define VD_OP_SCSICMD 0x0a /* SCSI control command */
142#define VD_OP_GET_DEVID 0x0b /* Get device ID */
143#define VD_OP_GET_EFI 0x0c /* Get EFI */
144#define VD_OP_SET_EFI 0x0d /* Set EFI */
145 u8 slice;
146 u16 resv1;
147 u32 status;
148 u64 offset;
149 u64 size;
150 u32 ncookies;
151 u32 resv2;
152 struct ldc_trans_cookie cookies[0];
153};
154
155#define VIO_DISK_VNAME_LEN 8
156#define VIO_DISK_ALABEL_LEN 128
157#define VIO_DISK_NUM_PART 8
158
159struct vio_disk_vtoc {
160 u8 volume_name[VIO_DISK_VNAME_LEN];
161 u16 sector_size;
162 u16 num_partitions;
163 u8 ascii_label[VIO_DISK_ALABEL_LEN];
164 struct {
165 u16 id;
166 u16 perm_flags;
167 u32 resv;
168 u64 start_block;
169 u64 num_blocks;
170 } partitions[VIO_DISK_NUM_PART];
171};
172
173struct vio_disk_geom {
174 u16 num_cyl; /* Num data cylinders */
175 u16 alt_cyl; /* Num alternate cylinders */
176 u16 beg_cyl; /* Cyl off of fixed head area */
177 u16 num_hd; /* Num heads */
178 u16 num_sec; /* Num sectors */
179 u16 ifact; /* Interleave factor */
180 u16 apc; /* Alts per cylinder (SCSI) */
181 u16 rpm; /* Revolutions per minute */
182 u16 phy_cyl; /* Num physical cylinders */
183 u16 wr_skip; /* Num sects to skip, writes */
184 u16 rd_skip; /* Num sects to skip, writes */
185};
186
187struct vio_disk_devid {
188 u16 resv;
189 u16 type;
190 u32 len;
191 char id[0];
192};
193
194struct vio_disk_efi {
195 u64 lba;
196 u64 len;
197 char data[0];
198};
199
200/* VIO net specific structures and defines */
201struct vio_net_attr_info {
202 struct vio_msg_tag tag;
203 u8 xfer_mode;
204 u8 addr_type;
205#define VNET_ADDR_ETHERMAC 0x01
206 u16 ack_freq;
207 u32 resv1;
208 u64 addr;
209 u64 mtu;
210 u64 resv2[3];
211};
212
213#define VNET_NUM_MCAST 7
214
215struct vio_net_mcast_info {
216 struct vio_msg_tag tag;
217 u8 set;
218 u8 count;
219 u8 mcast_addr[VNET_NUM_MCAST * 6];
220 u32 resv;
221};
222
223struct vio_net_desc {
224 struct vio_dring_hdr hdr;
225 u32 size;
226 u32 ncookies;
227 struct ldc_trans_cookie cookies[0];
228};
229
230#define VIO_MAX_RING_COOKIES 24
231
232struct vio_dring_state {
233 u64 ident;
234 void *base;
235 u64 snd_nxt;
236 u64 rcv_nxt;
237 u32 entry_size;
238 u32 num_entries;
239 u32 prod;
240 u32 cons;
241 u32 pending;
242 int ncookies;
243 struct ldc_trans_cookie cookies[VIO_MAX_RING_COOKIES];
244};
245
246static inline void *vio_dring_cur(struct vio_dring_state *dr)
247{
248 return dr->base + (dr->entry_size * dr->prod);
249}
250
251static inline void *vio_dring_entry(struct vio_dring_state *dr,
252 unsigned int index)
253{
254 return dr->base + (dr->entry_size * index);
255}
256
257static inline u32 vio_dring_avail(struct vio_dring_state *dr,
258 unsigned int ring_size)
259{
260 /* Ensure build-time power-of-2. */
261 BUILD_BUG_ON(ring_size & (ring_size - 1));
262
263 return (dr->pending -
264 ((dr->prod - dr->cons) & (ring_size - 1)));
265}
266
267#define VIO_MAX_TYPE_LEN 64
268#define VIO_MAX_COMPAT_LEN 64
269
270struct vio_dev {
271 u64 mp;
272 struct device_node *dp;
273
274 char type[VIO_MAX_TYPE_LEN];
275 char compat[VIO_MAX_COMPAT_LEN];
276 int compat_len;
277
278 unsigned long channel_id;
279
280 unsigned int tx_irq;
281 unsigned int rx_irq;
282
283 struct device dev;
284};
285
286struct vio_driver {
287 struct list_head node;
288 const struct vio_device_id *id_table;
289 int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
290 int (*remove)(struct vio_dev *dev);
291 void (*shutdown)(struct vio_dev *dev);
292 unsigned long driver_data;
293 struct device_driver driver;
294};
295
296struct vio_version {
297 u16 major;
298 u16 minor;
299};
300
301struct vio_driver_state;
302struct vio_driver_ops {
303 int (*send_attr)(struct vio_driver_state *vio);
304 int (*handle_attr)(struct vio_driver_state *vio, void *pkt);
305 void (*handshake_complete)(struct vio_driver_state *vio);
306};
307
308struct vio_completion {
309 struct completion com;
310 int err;
311 int waiting_for;
312};
313
314struct vio_driver_state {
315 /* Protects VIO handshake and, optionally, driver private state. */
316 spinlock_t lock;
317
318 struct ldc_channel *lp;
319
320 u32 _peer_sid;
321 u32 _local_sid;
322 struct vio_dring_state drings[2];
323#define VIO_DRIVER_TX_RING 0
324#define VIO_DRIVER_RX_RING 1
325
326 u8 hs_state;
327#define VIO_HS_INVALID 0x00
328#define VIO_HS_GOTVERS 0x01
329#define VIO_HS_GOT_ATTR 0x04
330#define VIO_HS_SENT_DREG 0x08
331#define VIO_HS_SENT_RDX 0x10
332#define VIO_HS_GOT_RDX_ACK 0x20
333#define VIO_HS_GOT_RDX 0x40
334#define VIO_HS_SENT_RDX_ACK 0x80
335#define VIO_HS_COMPLETE (VIO_HS_GOT_RDX_ACK | VIO_HS_SENT_RDX_ACK)
336
337 u8 dev_class;
338
339 u8 dr_state;
340#define VIO_DR_STATE_TXREG 0x01
341#define VIO_DR_STATE_RXREG 0x02
342#define VIO_DR_STATE_TXREQ 0x10
343#define VIO_DR_STATE_RXREQ 0x20
344
345 u8 debug;
346#define VIO_DEBUG_HS 0x01
347#define VIO_DEBUG_DATA 0x02
348
349 void *desc_buf;
350 unsigned int desc_buf_len;
351
352 struct vio_completion *cmp;
353
354 struct vio_dev *vdev;
355
356 struct timer_list timer;
357
358 struct vio_version ver;
359
360 struct vio_version *ver_table;
361 int ver_table_entries;
362
363 char *name;
364
365 struct vio_driver_ops *ops;
366};
367
368#define viodbg(TYPE, f, a...) \
369do { if (vio->debug & VIO_DEBUG_##TYPE) \
370 printk(KERN_INFO "vio: ID[%lu] " f, \
371 vio->vdev->channel_id, ## a); \
372} while (0)
373
374extern int vio_register_driver(struct vio_driver *drv);
375extern void vio_unregister_driver(struct vio_driver *drv);
376
377static inline struct vio_driver *to_vio_driver(struct device_driver *drv)
378{
379 return container_of(drv, struct vio_driver, driver);
380}
381
382static inline struct vio_dev *to_vio_dev(struct device *dev)
383{
384 return container_of(dev, struct vio_dev, dev);
385}
386
387extern int vio_ldc_send(struct vio_driver_state *vio, void *data, int len);
388extern void vio_link_state_change(struct vio_driver_state *vio, int event);
389extern void vio_conn_reset(struct vio_driver_state *vio);
390extern int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt);
391extern int vio_validate_sid(struct vio_driver_state *vio,
392 struct vio_msg_tag *tp);
393extern u32 vio_send_sid(struct vio_driver_state *vio);
394extern int vio_ldc_alloc(struct vio_driver_state *vio,
395 struct ldc_channel_config *base_cfg, void *event_arg);
396extern void vio_ldc_free(struct vio_driver_state *vio);
397extern int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
398 u8 dev_class, struct vio_version *ver_table,
399 int ver_table_size, struct vio_driver_ops *ops,
400 char *name);
401
402extern void vio_port_up(struct vio_driver_state *vio);
403
404#endif /* _SPARC64_VIO_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-21 08:44:25 -0400