hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[POWERPC] PS3: System-bus rework 

Rework the PS3 system bus to unify device support.
 - DMA region sizes must be a power of two
 - storage bus DMA updates:
  - Small fixes for the PS3 DMA core:
      o fix alignment bug
      o kill superfluous test
      o indentation
      o spelling
      o export ps3_dma_region_{create,free}()
  - ps3_dma_region_init():
      o Add `addr' and `len' parameters, so you can create a DMA region that
        does not cover all memory (use `NULL' and `0' to cover all memory).
	This is needed because there are not sufficient IOMMU resources to have
	all DMA regions cover all memory.
      o Uninline
  - Added remove and shutdown routines to all drivers.
  - Added loadable module support to all drivers.
  - Added HV calls for iopte management (needed by sound driver).

Signed-off-by: MOKUNO Masakazu <mokuno@sm.sony.co.jp>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geoff Levand 2007-06-16 07:52:02 +10:00 committed by Paul Mackerras
parent 9263e85aa9
commit 6bb5cf1025
6 changed files with 1090 additions and 253 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
arch/powerpc/platforms/ps3/interrupt.c
View File

@ -400,17 +400,15 @@ int ps3_send_event_locally(unsigned int virq)
* ps3_sb_event_receive_port_setup - Setup a system bus event receive port.
* @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
* serviced on.
* @did: The HV device identifier read from the system repository.
* @interrupt_id: The device interrupt id read from the system repository.
* @dev: The system bus device instance.
* @virq: The assigned Linux virq.
*
* An event irq represents a virtual device interrupt. The interrupt_id
* coresponds to the software interrupt number.
*/
int ps3_sb_event_receive_port_setup(enum ps3_cpu_binding cpu,
const struct ps3_device_id *did, unsigned int interrupt_id,
unsigned int *virq)
int ps3_sb_event_receive_port_setup(struct ps3_system_bus_device *dev,
enum ps3_cpu_binding cpu, unsigned int *virq)
{
/* this should go in system-bus.c */
@ -421,8 +419,8 @@ int ps3_sb_event_receive_port_setup(enum ps3_cpu_binding cpu,
if (result)
return result;
result = lv1_connect_interrupt_event_receive_port(did->bus_id,
did->dev_id, virq_to_hw(*virq), interrupt_id);
result = lv1_connect_interrupt_event_receive_port(dev->bus_id,
dev->dev_id, virq_to_hw(*virq), dev->interrupt_id);
if (result) {
pr_debug("%s:%d: lv1_connect_interrupt_event_receive_port"
@ -434,24 +432,24 @@ int ps3_sb_event_receive_port_setup(enum ps3_cpu_binding cpu,
}
pr_debug("%s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
interrupt_id, *virq);
dev->interrupt_id, *virq);
return 0;
}
EXPORT_SYMBOL(ps3_sb_event_receive_port_setup);
int ps3_sb_event_receive_port_destroy(const struct ps3_device_id *did,
unsigned int interrupt_id, unsigned int virq)
int ps3_sb_event_receive_port_destroy(struct ps3_system_bus_device *dev,
unsigned int virq)
{
/* this should go in system-bus.c */
int result;
pr_debug(" -> %s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
interrupt_id, virq);
dev->interrupt_id, virq);
result = lv1_disconnect_interrupt_event_receive_port(did->bus_id,
did->dev_id, virq_to_hw(virq), interrupt_id);
result = lv1_disconnect_interrupt_event_receive_port(dev->bus_id,
dev->dev_id, virq_to_hw(virq), dev->interrupt_id);
if (result)
pr_debug("%s:%d: lv1_disconnect_interrupt_event_receive_port"

622
arch/powerpc/platforms/ps3/mm.c
View File

@ -115,7 +115,8 @@ struct map {
};
#define debug_dump_map(x) _debug_dump_map(x, __func__, __LINE__)
static void _debug_dump_map(const struct map* m, const char* func, int line)
static void __maybe_unused _debug_dump_map(const struct map *m,
const char *func, int line)
{
DBG("%s:%d: map.total = %lxh\n", func, line, m->total);
DBG("%s:%d: map.rm.size = %lxh\n", func, line, m->rm.size);
@ -212,9 +213,15 @@ fail:
void ps3_mm_vas_destroy(void)
{
int result;
DBG("%s:%d: map.vas_id = %lu\n", __func__, __LINE__, map.vas_id);
if (map.vas_id) {
lv1_select_virtual_address_space(0);
lv1_destruct_virtual_address_space(map.vas_id);
result = lv1_select_virtual_address_space(0);
BUG_ON(result);
result = lv1_destruct_virtual_address_space(map.vas_id);
BUG_ON(result);
map.vas_id = 0;
}
}
@ -275,8 +282,12 @@ zero_region:
void ps3_mm_region_destroy(struct mem_region *r)
{
int result;
DBG("%s:%d: r->base = %lxh\n", __func__, __LINE__, r->base);
if (r->base) {
lv1_release_memory(r->base);
result = lv1_release_memory(r->base);
BUG_ON(result);
r->size = r->base = r->offset = 0;
map.total = map.rm.size;
}
@ -329,31 +340,34 @@ core_initcall(ps3_mm_add_memory);
/*============================================================================*/
/**
* dma_lpar_to_bus - Translate an lpar address to ioc mapped bus address.
* dma_sb_lpar_to_bus - Translate an lpar address to ioc mapped bus address.
* @r: pointer to dma region structure
* @lpar_addr: HV lpar address
*/
static unsigned long dma_lpar_to_bus(struct ps3_dma_region *r,
static unsigned long dma_sb_lpar_to_bus(struct ps3_dma_region *r,
unsigned long lpar_addr)
{
BUG_ON(lpar_addr >= map.r1.base + map.r1.size);
return r->bus_addr + (lpar_addr <= map.rm.size ? lpar_addr
: lpar_addr - map.r1.offset);
if (lpar_addr >= map.rm.size)
lpar_addr -= map.r1.offset;
BUG_ON(lpar_addr < r->offset);
BUG_ON(lpar_addr >= r->offset + r->len);
return r->bus_addr + lpar_addr - r->offset;
}
#define dma_dump_region(_a) _dma_dump_region(_a, __func__, __LINE__)
static void _dma_dump_region(const struct ps3_dma_region *r, const char* func,
int line)
static void __maybe_unused _dma_dump_region(const struct ps3_dma_region *r,
const char *func, int line)
{
DBG("%s:%d: dev %u:%u\n", func, line, r->did.bus_id,
r->did.dev_id);
DBG("%s:%d: dev %u:%u\n", func, line, r->dev->bus_id,
r->dev->dev_id);
DBG("%s:%d: page_size %u\n", func, line, r->page_size);
DBG("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr);
DBG("%s:%d: len %lxh\n", func, line, r->len);
DBG("%s:%d: offset %lxh\n", func, line, r->offset);
}
/**
/**
* dma_chunk - A chunk of dma pages mapped by the io controller.
* @region - The dma region that owns this chunk.
* @lpar_addr: Starting lpar address of the area to map.
@ -381,10 +395,11 @@ static void _dma_dump_chunk (const struct dma_chunk* c, const char* func,
int line)
{
DBG("%s:%d: r.dev %u:%u\n", func, line,
c->region->did.bus_id, c->region->did.dev_id);
c->region->dev->bus_id, c->region->dev->dev_id);
DBG("%s:%d: r.bus_addr %lxh\n", func, line, c->region->bus_addr);
DBG("%s:%d: r.page_size %u\n", func, line, c->region->page_size);
DBG("%s:%d: r.len %lxh\n", func, line, c->region->len);
DBG("%s:%d: r.offset %lxh\n", func, line, c->region->offset);
DBG("%s:%d: c.lpar_addr %lxh\n", func, line, c->lpar_addr);
DBG("%s:%d: c.bus_addr %lxh\n", func, line, c->bus_addr);
DBG("%s:%d: c.len %lxh\n", func, line, c->len);
@ -395,39 +410,68 @@ static struct dma_chunk * dma_find_chunk(struct ps3_dma_region *r,
{
struct dma_chunk *c;
unsigned long aligned_bus = _ALIGN_DOWN(bus_addr, 1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len, 1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len+bus_addr-aligned_bus,
1 << r->page_size);
list_for_each_entry(c, &r->chunk_list.head, link) {
/* intersection */
if (aligned_bus >= c->bus_addr
&& aligned_bus < c->bus_addr + c->len
&& aligned_bus + aligned_len <= c->bus_addr + c->len) {
if (aligned_bus >= c->bus_addr &&
aligned_bus + aligned_len <= c->bus_addr + c->len)
return c;
}
/* below */
if (aligned_bus + aligned_len <= c->bus_addr) {
if (aligned_bus + aligned_len <= c->bus_addr)
continue;
}
/* above */
if (aligned_bus >= c->bus_addr + c->len) {
if (aligned_bus >= c->bus_addr + c->len)
continue;
}
/* we don't handle the multi-chunk case for now */
dma_dump_chunk(c);
BUG();
}
return NULL;
}
static int dma_free_chunk(struct dma_chunk *c)
static struct dma_chunk *dma_find_chunk_lpar(struct ps3_dma_region *r,
unsigned long lpar_addr, unsigned long len)
{
struct dma_chunk *c;
unsigned long aligned_lpar = _ALIGN_DOWN(lpar_addr, 1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len + lpar_addr - aligned_lpar,
1 << r->page_size);
list_for_each_entry(c, &r->chunk_list.head, link) {
/* intersection */
if (c->lpar_addr <= aligned_lpar &&
aligned_lpar < c->lpar_addr + c->len) {
if (aligned_lpar + aligned_len <= c->lpar_addr + c->len)
return c;
else {
dma_dump_chunk(c);
BUG();
}
}
/* below */
if (aligned_lpar + aligned_len <= c->lpar_addr) {
continue;
}
/* above */
if (c->lpar_addr + c->len <= aligned_lpar) {
continue;
}
}
return NULL;
}
static int dma_sb_free_chunk(struct dma_chunk *c)
{
int result = 0;
if (c->bus_addr) {
result = lv1_unmap_device_dma_region(c->region->did.bus_id,
c->region->did.dev_id, c->bus_addr, c->len);
result = lv1_unmap_device_dma_region(c->region->dev->bus_id,
c->region->dev->dev_id, c->bus_addr, c->len);
BUG_ON(result);
}
@ -435,8 +479,39 @@ static int dma_free_chunk(struct dma_chunk *c)
return result;
}
static int dma_ioc0_free_chunk(struct dma_chunk *c)
{
int result = 0;
int iopage;
unsigned long offset;
struct ps3_dma_region *r = c->region;
DBG("%s:start\n", __func__);
for (iopage = 0; iopage < (c->len >> r->page_size); iopage++) {
offset = (1 << r->page_size) * iopage;
/* put INVALID entry */
result = lv1_put_iopte(0,
c->bus_addr + offset,
c->lpar_addr + offset,
r->ioid,
0);
DBG("%s: bus=%#lx, lpar=%#lx, ioid=%d\n", __func__,
c->bus_addr + offset,
c->lpar_addr + offset,
r->ioid);
if (result) {
DBG("%s:%d: lv1_put_iopte failed: %s\n", __func__,
__LINE__, ps3_result(result));
}
}
kfree(c);
DBG("%s:end\n", __func__);
return result;
}
/**
* dma_map_pages - Maps dma pages into the io controller bus address space.
* dma_sb_map_pages - Maps dma pages into the io controller bus address space.
* @r: Pointer to a struct ps3_dma_region.
* @phys_addr: Starting physical address of the area to map.
* @len: Length in bytes of the area to map.
@ -446,8 +521,8 @@ static int dma_free_chunk(struct dma_chunk *c)
* make the HV call to add the pages into the io controller address space.
*/
static int dma_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,
unsigned long len, struct dma_chunk **c_out)
static int dma_sb_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,
unsigned long len, struct dma_chunk **c_out, u64 iopte_flag)
{
int result;
struct dma_chunk *c;
@ -461,13 +536,13 @@ static int dma_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,
c->region = r;
c->lpar_addr = ps3_mm_phys_to_lpar(phys_addr);
c->bus_addr = dma_lpar_to_bus(r, c->lpar_addr);
c->bus_addr = dma_sb_lpar_to_bus(r, c->lpar_addr);
c->len = len;
result = lv1_map_device_dma_region(c->region->did.bus_id,
c->region->did.dev_id, c->lpar_addr, c->bus_addr, c->len,
0xf800000000000000UL);
BUG_ON(iopte_flag != 0xf800000000000000UL);
result = lv1_map_device_dma_region(c->region->dev->bus_id,
c->region->dev->dev_id, c->lpar_addr,
c->bus_addr, c->len, iopte_flag);
if (result) {
DBG("%s:%d: lv1_map_device_dma_region failed: %s\n",
__func__, __LINE__, ps3_result(result));
@ -487,26 +562,120 @@ fail_alloc:
return result;
}
static int dma_ioc0_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,
unsigned long len, struct dma_chunk **c_out,
u64 iopte_flag)
{
int result;
struct dma_chunk *c, *last;
int iopage, pages;
unsigned long offset;
DBG(KERN_ERR "%s: phy=%#lx, lpar%#lx, len=%#lx\n", __func__,
phys_addr, ps3_mm_phys_to_lpar(phys_addr), len);
c = kzalloc(sizeof(struct dma_chunk), GFP_ATOMIC);
if (!c) {
result = -ENOMEM;
goto fail_alloc;
}
c->region = r;
c->len = len;
c->lpar_addr = ps3_mm_phys_to_lpar(phys_addr);
/* allocate IO address */
if (list_empty(&r->chunk_list.head)) {
/* first one */
c->bus_addr = r->bus_addr;
} else {
/* derive from last bus addr*/
last = list_entry(r->chunk_list.head.next,
struct dma_chunk, link);
c->bus_addr = last->bus_addr + last->len;
DBG("%s: last bus=%#lx, len=%#lx\n", __func__,
last->bus_addr, last->len);
}
/* FIXME: check whether length exceeds region size */
/* build ioptes for the area */
pages = len >> r->page_size;
DBG("%s: pgsize=%#x len=%#lx pages=%#x iopteflag=%#lx\n", __func__,
r->page_size, r->len, pages, iopte_flag);
for (iopage = 0; iopage < pages; iopage++) {
offset = (1 << r->page_size) * iopage;
result = lv1_put_iopte(0,
c->bus_addr + offset,
c->lpar_addr + offset,
r->ioid,
iopte_flag);
if (result) {
printk(KERN_WARNING "%s:%d: lv1_map_device_dma_region "
"failed: %s\n", __func__, __LINE__,
ps3_result(result));
goto fail_map;
}
DBG("%s: pg=%d bus=%#lx, lpar=%#lx, ioid=%#x\n", __func__,
iopage, c->bus_addr + offset, c->lpar_addr + offset,
r->ioid);
}
/* be sure that last allocated one is inserted at head */
list_add(&c->link, &r->chunk_list.head);
*c_out = c;
DBG("%s: end\n", __func__);
return 0;
fail_map:
for (iopage--; 0 <= iopage; iopage--) {
lv1_put_iopte(0,
c->bus_addr + offset,
c->lpar_addr + offset,
r->ioid,
0);
}
kfree(c);
fail_alloc:
*c_out = NULL;
return result;
}
/**
* dma_region_create - Create a device dma region.
* dma_sb_region_create - Create a device dma region.
* @r: Pointer to a struct ps3_dma_region.
*
* This is the lowest level dma region create routine, and is the one that
* will make the HV call to create the region.
*/
static int dma_region_create(struct ps3_dma_region* r)
static int dma_sb_region_create(struct ps3_dma_region *r)
{
int result;
r->len = _ALIGN_UP(map.total, 1 << r->page_size);
pr_info(" -> %s:%d:\n", __func__, __LINE__);
BUG_ON(!r);
if (!r->dev->bus_id) {
pr_info("%s:%d: %u:%u no dma\n", __func__, __LINE__,
r->dev->bus_id, r->dev->dev_id);
return 0;
}
DBG("%s:%u: len = 0x%lx, page_size = %u, offset = 0x%lx\n", __func__,
__LINE__, r->len, r->page_size, r->offset);
BUG_ON(!r->len);
BUG_ON(!r->page_size);
BUG_ON(!r->region_ops);
INIT_LIST_HEAD(&r->chunk_list.head);
spin_lock_init(&r->chunk_list.lock);
result = lv1_allocate_device_dma_region(r->did.bus_id, r->did.dev_id,
r->len, r->page_size, r->region_type, &r->bus_addr);
dma_dump_region(r);
result = lv1_allocate_device_dma_region(r->dev->bus_id, r->dev->dev_id,
roundup_pow_of_two(r->len), r->page_size, r->region_type,
&r->bus_addr);
if (result) {
DBG("%s:%d: lv1_allocate_device_dma_region failed: %s\n",
@ -517,6 +686,27 @@ static int dma_region_create(struct ps3_dma_region* r)
return result;
}
static int dma_ioc0_region_create(struct ps3_dma_region *r)
{
int result;
INIT_LIST_HEAD(&r->chunk_list.head);
spin_lock_init(&r->chunk_list.lock);
result = lv1_allocate_io_segment(0,
r->len,
r->page_size,
&r->bus_addr);
if (result) {
DBG("%s:%d: lv1_allocate_io_segment failed: %s\n",
__func__, __LINE__, ps3_result(result));
r->len = r->bus_addr = 0;
}
DBG("%s: len=%#lx, pg=%d, bus=%#lx\n", __func__,
r->len, r->page_size, r->bus_addr);
return result;
}
/**
* dma_region_free - Free a device dma region.
* @r: Pointer to a struct ps3_dma_region.
@ -525,31 +715,62 @@ static int dma_region_create(struct ps3_dma_region* r)
* will make the HV call to free the region.
*/
static int dma_region_free(struct ps3_dma_region* r)
static int dma_sb_region_free(struct ps3_dma_region *r)
{
int result;
struct dma_chunk *c;
struct dma_chunk *tmp;
list_for_each_entry_safe(c, tmp, &r->chunk_list.head, link) {
list_del(&c->link);
dma_free_chunk(c);
BUG_ON(!r);
if (!r->dev->bus_id) {
pr_info("%s:%d: %u:%u no dma\n", __func__, __LINE__,
r->dev->bus_id, r->dev->dev_id);
return 0;
}
result = lv1_free_device_dma_region(r->did.bus_id, r->did.dev_id,
list_for_each_entry_safe(c, tmp, &r->chunk_list.head, link) {
list_del(&c->link);
dma_sb_free_chunk(c);
}
result = lv1_free_device_dma_region(r->dev->bus_id, r->dev->dev_id,
r->bus_addr);
if (result)
DBG("%s:%d: lv1_free_device_dma_region failed: %s\n",
__func__, __LINE__, ps3_result(result));
r->len = r->bus_addr = 0;
r->bus_addr = 0;
return result;
}
static int dma_ioc0_region_free(struct ps3_dma_region *r)
{
int result;
struct dma_chunk *c, *n;
DBG("%s: start\n", __func__);
list_for_each_entry_safe(c, n, &r->chunk_list.head, link) {
list_del(&c->link);
dma_ioc0_free_chunk(c);
}
result = lv1_release_io_segment(0, r->bus_addr);
if (result)
DBG("%s:%d: lv1_free_device_dma_region failed: %s\n",
__func__, __LINE__, ps3_result(result));
r->bus_addr = 0;
DBG("%s: end\n", __func__);
return result;
}
/**
* dma_map_area - Map an area of memory into a device dma region.
* dma_sb_map_area - Map an area of memory into a device dma region.
* @r: Pointer to a struct ps3_dma_region.
* @virt_addr: Starting virtual address of the area to map.
* @len: Length in bytes of the area to map.
@ -559,16 +780,19 @@ static int dma_region_free(struct ps3_dma_region* r)
* This is the common dma mapping routine.
*/
static int dma_map_area(struct ps3_dma_region *r, unsigned long virt_addr,
unsigned long len, unsigned long *bus_addr)
static int dma_sb_map_area(struct ps3_dma_region *r, unsigned long virt_addr,
unsigned long len, unsigned long *bus_addr,
u64 iopte_flag)
{
int result;
unsigned long flags;
struct dma_chunk *c;
unsigned long phys_addr = is_kernel_addr(virt_addr) ? __pa(virt_addr)
: virt_addr;
*bus_addr = dma_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));
unsigned long aligned_phys = _ALIGN_DOWN(phys_addr, 1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len + phys_addr - aligned_phys,
1 << r->page_size);
*bus_addr = dma_sb_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));
if (!USE_DYNAMIC_DMA) {
unsigned long lpar_addr = ps3_mm_phys_to_lpar(phys_addr);
@ -588,17 +812,18 @@ static int dma_map_area(struct ps3_dma_region *r, unsigned long virt_addr,
c = dma_find_chunk(r, *bus_addr, len);
if (c) {
DBG("%s:%d: reusing mapped chunk", __func__, __LINE__);
dma_dump_chunk(c);
c->usage_count++;
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
return 0;
}
result = dma_map_pages(r, _ALIGN_DOWN(phys_addr, 1 << r->page_size),
_ALIGN_UP(len, 1 << r->page_size), &c);
result = dma_sb_map_pages(r, aligned_phys, aligned_len, &c, iopte_flag);
if (result) {
*bus_addr = 0;
DBG("%s:%d: dma_map_pages failed (%d)\n",
DBG("%s:%d: dma_sb_map_pages failed (%d)\n",
__func__, __LINE__, result);
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
return result;
@ -610,8 +835,57 @@ static int dma_map_area(struct ps3_dma_region *r, unsigned long virt_addr,
return result;
}
static int dma_ioc0_map_area(struct ps3_dma_region *r, unsigned long virt_addr,
unsigned long len, unsigned long *bus_addr,
u64 iopte_flag)
{
int result;
unsigned long flags;
struct dma_chunk *c;
unsigned long phys_addr = is_kernel_addr(virt_addr) ? __pa(virt_addr)
: virt_addr;
unsigned long aligned_phys = _ALIGN_DOWN(phys_addr, 1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len + phys_addr - aligned_phys,
1 << r->page_size);
DBG(KERN_ERR "%s: vaddr=%#lx, len=%#lx\n", __func__,
virt_addr, len);
DBG(KERN_ERR "%s: ph=%#lx a_ph=%#lx a_l=%#lx\n", __func__,
phys_addr, aligned_phys, aligned_len);
spin_lock_irqsave(&r->chunk_list.lock, flags);
c = dma_find_chunk_lpar(r, ps3_mm_phys_to_lpar(phys_addr), len);
if (c) {
/* FIXME */
BUG();
*bus_addr = c->bus_addr + phys_addr - aligned_phys;
c->usage_count++;
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
return 0;
}
result = dma_ioc0_map_pages(r, aligned_phys, aligned_len, &c,
iopte_flag);
if (result) {
*bus_addr = 0;
DBG("%s:%d: dma_ioc0_map_pages failed (%d)\n",
__func__, __LINE__, result);
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
return result;
}
*bus_addr = c->bus_addr + phys_addr - aligned_phys;
DBG("%s: va=%#lx pa=%#lx a_pa=%#lx bus=%#lx\n", __func__,
virt_addr, phys_addr, aligned_phys, *bus_addr);
c->usage_count = 1;
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
return result;
}
/**
* dma_unmap_area - Unmap an area of memory from a device dma region.
* dma_sb_unmap_area - Unmap an area of memory from a device dma region.
* @r: Pointer to a struct ps3_dma_region.
* @bus_addr: The starting ioc bus address of the area to unmap.
* @len: Length in bytes of the area to unmap.
@ -619,7 +893,7 @@ static int dma_map_area(struct ps3_dma_region *r, unsigned long virt_addr,
* This is the common dma unmap routine.
*/
int dma_unmap_area(struct ps3_dma_region *r, unsigned long bus_addr,
int dma_sb_unmap_area(struct ps3_dma_region *r, unsigned long bus_addr,
unsigned long len)
{
unsigned long flags;
@ -631,7 +905,8 @@ int dma_unmap_area(struct ps3_dma_region *r, unsigned long bus_addr,
if (!c) {
unsigned long aligned_bus = _ALIGN_DOWN(bus_addr,
1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len, 1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len + bus_addr
- aligned_bus, 1 << r->page_size);
DBG("%s:%d: not found: bus_addr %lxh\n",
__func__, __LINE__, bus_addr);
DBG("%s:%d: not found: len %lxh\n",
@ -647,94 +922,166 @@ int dma_unmap_area(struct ps3_dma_region *r, unsigned long bus_addr,
if (!c->usage_count) {
list_del(&c->link);
dma_free_chunk(c);
dma_sb_free_chunk(c);
}
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
return 0;
}
int dma_ioc0_unmap_area(struct ps3_dma_region *r, unsigned long bus_addr,
unsigned long len)
{
unsigned long flags;
struct dma_chunk *c;
DBG("%s: start a=%#lx l=%#lx\n", __func__, bus_addr, len);
spin_lock_irqsave(&r->chunk_list.lock, flags);
c = dma_find_chunk(r, bus_addr, len);
if (!c) {
unsigned long aligned_bus = _ALIGN_DOWN(bus_addr,
1 << r->page_size);
unsigned long aligned_len = _ALIGN_UP(len + bus_addr
- aligned_bus,
1 << r->page_size);
DBG("%s:%d: not found: bus_addr %lxh\n",
__func__, __LINE__, bus_addr);
DBG("%s:%d: not found: len %lxh\n",
__func__, __LINE__, len);
DBG("%s:%d: not found: aligned_bus %lxh\n",
__func__, __LINE__, aligned_bus);
DBG("%s:%d: not found: aligned_len %lxh\n",
__func__, __LINE__, aligned_len);
BUG();
}
c->usage_count--;
if (!c->usage_count) {
list_del(&c->link);
dma_ioc0_free_chunk(c);
}
spin_unlock_irqrestore(&r->chunk_list.lock, flags);
DBG("%s: end\n", __func__);
return 0;
}
/**
* dma_region_create_linear - Setup a linear dma maping for a device.
* dma_sb_region_create_linear - Setup a linear dma mapping for a device.
* @r: Pointer to a struct ps3_dma_region.
*
* This routine creates an HV dma region for the device and maps all available
* ram into the io controller bus address space.
*/
static int dma_region_create_linear(struct ps3_dma_region *r)
static int dma_sb_region_create_linear(struct ps3_dma_region *r)
{
int result;
unsigned long tmp;
unsigned long virt_addr, len, tmp;
/* force 16M dma pages for linear mapping */
if (r->page_size != PS3_DMA_16M) {
pr_info("%s:%d: forcing 16M pages for linear map\n",
__func__, __LINE__);
r->page_size = PS3_DMA_16M;
if (r->len > 16*1024*1024) { /* FIXME: need proper fix */
/* force 16M dma pages for linear mapping */
if (r->page_size != PS3_DMA_16M) {
pr_info("%s:%d: forcing 16M pages for linear map\n",
__func__, __LINE__);
r->page_size = PS3_DMA_16M;
r->len = _ALIGN_UP(r->len, 1 << r->page_size);
}
}
result = dma_region_create(r);
result = dma_sb_region_create(r);
BUG_ON(result);
result = dma_map_area(r, map.rm.base, map.rm.size, &tmp);
BUG_ON(result);
if (r->offset < map.rm.size) {
/* Map (part of) 1st RAM chunk */
virt_addr = map.rm.base + r->offset;
len = map.rm.size - r->offset;
if (len > r->len)
len = r->len;
result = dma_sb_map_area(r, virt_addr, len, &tmp,
IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
BUG_ON(result);
}
if (USE_LPAR_ADDR)
result = dma_map_area(r, map.r1.base, map.r1.size,
&tmp);
else
result = dma_map_area(r, map.rm.size, map.r1.size,
&tmp);
BUG_ON(result);
if (r->offset + r->len > map.rm.size) {
/* Map (part of) 2nd RAM chunk */
virt_addr = USE_LPAR_ADDR ? map.r1.base : map.rm.size;
len = r->len;
if (r->offset >= map.rm.size)
virt_addr += r->offset - map.rm.size;
else
len -= map.rm.size - r->offset;
result = dma_sb_map_area(r, virt_addr, len, &tmp,
IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
BUG_ON(result);
}
return result;
}
/**
* dma_region_free_linear - Free a linear dma mapping for a device.
* dma_sb_region_free_linear - Free a linear dma mapping for a device.
* @r: Pointer to a struct ps3_dma_region.
*
* This routine will unmap all mapped areas and free the HV dma region.
*/
static int dma_region_free_linear(struct ps3_dma_region *r)
static int dma_sb_region_free_linear(struct ps3_dma_region *r)
{
int result;
unsigned long bus_addr, len, lpar_addr;
result = dma_unmap_area(r, dma_lpar_to_bus(r, 0), map.rm.size);
BUG_ON(result);
if (r->offset < map.rm.size) {
/* Unmap (part of) 1st RAM chunk */
lpar_addr = map.rm.base + r->offset;
len = map.rm.size - r->offset;
if (len > r->len)
len = r->len;
bus_addr = dma_sb_lpar_to_bus(r, lpar_addr);
result = dma_sb_unmap_area(r, bus_addr, len);
BUG_ON(result);
}
result = dma_unmap_area(r, dma_lpar_to_bus(r, map.r1.base),
map.r1.size);
BUG_ON(result);
if (r->offset + r->len > map.rm.size) {
/* Unmap (part of) 2nd RAM chunk */
lpar_addr = map.r1.base;
len = r->len;
if (r->offset >= map.rm.size)
lpar_addr += r->offset - map.rm.size;
else
len -= map.rm.size - r->offset;
bus_addr = dma_sb_lpar_to_bus(r, lpar_addr);
result = dma_sb_unmap_area(r, bus_addr, len);
BUG_ON(result);
}
result = dma_region_free(r);
result = dma_sb_region_free(r);
BUG_ON(result);
return result;
}
/**
* dma_map_area_linear - Map an area of memory into a device dma region.
* dma_sb_map_area_linear - Map an area of memory into a device dma region.
* @r: Pointer to a struct ps3_dma_region.
* @virt_addr: Starting virtual address of the area to map.
* @len: Length in bytes of the area to map.
* @bus_addr: A pointer to return the starting ioc bus address of the area to
* map.
*
* This routine just returns the coresponding bus address. Actual mapping
* This routine just returns the corresponding bus address. Actual mapping
* occurs in dma_region_create_linear().
*/
static int dma_map_area_linear(struct ps3_dma_region *r,
unsigned long virt_addr, unsigned long len, unsigned long *bus_addr)
static int dma_sb_map_area_linear(struct ps3_dma_region *r,
unsigned long virt_addr, unsigned long len, unsigned long *bus_addr,
u64 iopte_flag)
{
unsigned long phys_addr = is_kernel_addr(virt_addr) ? __pa(virt_addr)
: virt_addr;
*bus_addr = dma_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));
*bus_addr = dma_sb_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));
return 0;
}
@ -744,42 +1091,98 @@ static int dma_map_area_linear(struct ps3_dma_region *r,
* @bus_addr: The starting ioc bus address of the area to unmap.
* @len: Length in bytes of the area to unmap.
*
* This routine does nothing. Unmapping occurs in dma_region_free_linear().
* This routine does nothing. Unmapping occurs in dma_sb_region_free_linear().
*/
static int dma_unmap_area_linear(struct ps3_dma_region *r,
static int dma_sb_unmap_area_linear(struct ps3_dma_region *r,
unsigned long bus_addr, unsigned long len)
{
return 0;
};
static const struct ps3_dma_region_ops ps3_dma_sb_region_ops = {
.create = dma_sb_region_create,
.free = dma_sb_region_free,
.map = dma_sb_map_area,
.unmap = dma_sb_unmap_area
};
static const struct ps3_dma_region_ops ps3_dma_sb_region_linear_ops = {
.create = dma_sb_region_create_linear,
.free = dma_sb_region_free_linear,
.map = dma_sb_map_area_linear,
.unmap = dma_sb_unmap_area_linear
};
static const struct ps3_dma_region_ops ps3_dma_ioc0_region_ops = {
.create = dma_ioc0_region_create,
.free = dma_ioc0_region_free,
.map = dma_ioc0_map_area,
.unmap = dma_ioc0_unmap_area
};
int ps3_dma_region_init(struct ps3_system_bus_device *dev,
struct ps3_dma_region *r, enum ps3_dma_page_size page_size,
enum ps3_dma_region_type region_type, void *addr, unsigned long len)
{
unsigned long lpar_addr;
lpar_addr = addr ? ps3_mm_phys_to_lpar(__pa(addr)) : 0;
r->dev = dev;
r->page_size = page_size;
r->region_type = region_type;
r->offset = lpar_addr;
if (r->offset >= map.rm.size)
r->offset -= map.r1.offset;
r->len = len ? len : _ALIGN_UP(map.total, 1 << r->page_size);
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_SB:
r->region_ops = (USE_DYNAMIC_DMA)
? &ps3_dma_sb_region_ops
: &ps3_dma_sb_region_linear_ops;
break;
case PS3_DEVICE_TYPE_IOC0:
r->region_ops = &ps3_dma_ioc0_region_ops;
break;
default:
BUG();
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL(ps3_dma_region_init);
int ps3_dma_region_create(struct ps3_dma_region *r)
{
return (USE_DYNAMIC_DMA)
? dma_region_create(r)
: dma_region_create_linear(r);
BUG_ON(!r);
BUG_ON(!r->region_ops);
BUG_ON(!r->region_ops->create);
return r->region_ops->create(r);
}
EXPORT_SYMBOL(ps3_dma_region_create);
int ps3_dma_region_free(struct ps3_dma_region *r)
{
return (USE_DYNAMIC_DMA)
? dma_region_free(r)
: dma_region_free_linear(r);
BUG_ON(!r);
BUG_ON(!r->region_ops);
BUG_ON(!r->region_ops->free);
return r->region_ops->free(r);
}
EXPORT_SYMBOL(ps3_dma_region_free);
int ps3_dma_map(struct ps3_dma_region *r, unsigned long virt_addr,
unsigned long len, unsigned long *bus_addr)
unsigned long len, unsigned long *bus_addr,
u64 iopte_flag)
{
return (USE_DYNAMIC_DMA)
? dma_map_area(r, virt_addr, len, bus_addr)
: dma_map_area_linear(r, virt_addr, len, bus_addr);
return r->region_ops->map(r, virt_addr, len, bus_addr, iopte_flag);
}
int ps3_dma_unmap(struct ps3_dma_region *r, unsigned long bus_addr,
unsigned long len)
{
return (USE_DYNAMIC_DMA) ? dma_unmap_area(r, bus_addr, len)
: dma_unmap_area_linear(r, bus_addr, len);
return r->region_ops->unmap(r, bus_addr, len);
}
/*============================================================================*/
@ -816,6 +1219,9 @@ void __init ps3_mm_init(void)
/* arrange to do this in ps3_mm_add_memory */
ps3_mm_region_create(&map.r1, map.total - map.rm.size);
/* correct map.total for the real total amount of memory we use */
map.total = map.rm.size + map.r1.size;
DBG(" <- %s:%d\n", __func__, __LINE__);
}

11
arch/powerpc/platforms/ps3/platform.h
View File

@ -83,6 +83,7 @@ enum ps3_dev_type {
PS3_DEV_TYPE_STOR_ROM = TYPE_ROM, /* 5 */
PS3_DEV_TYPE_SB_GPIO = 6,
PS3_DEV_TYPE_STOR_FLASH = TYPE_RBC, /* 14 */
PS3_DEV_TYPE_NOACCESS = 255,
};
int ps3_repository_read_bus_str(unsigned int bus_index, const char *bus_str,
@ -217,4 +218,14 @@ int ps3_repository_read_num_spu_resource_id(unsigned int *num_resource_id);
int ps3_repository_read_spu_resource_id(unsigned int res_index,
enum ps3_spu_resource_type* resource_type, unsigned int *resource_id);
/* Page table entries */
#define IOPTE_PP_W 0x8000000000000000ul /* protection: write */
#define IOPTE_PP_R 0x4000000000000000ul /* protection: read */
#define IOPTE_M 0x2000000000000000ul /* coherency required */
#define IOPTE_SO_R 0x1000000000000000ul /* ordering: writes */
#define IOPTE_SO_RW 0x1800000000000000ul /* ordering: r & w */
#define IOPTE_RPN_Mask 0x07fffffffffff000ul /* RPN */
#define IOPTE_H 0x0000000000000800ul /* cache hint */
#define IOPTE_IOID_Mask 0x00000000000007fful /* ioid */
#endif

535
arch/powerpc/platforms/ps3/system-bus.c
View File

@ -30,22 +30,228 @@
#include "platform.h"
static struct device ps3_system_bus = {
.bus_id = "ps3_system",
};
/* FIXME: need device usage counters! */
struct {
struct mutex mutex;
int sb_11; /* usb 0 */
int sb_12; /* usb 0 */
int gpu;
} static usage_hack;
static int ps3_is_device(struct ps3_system_bus_device *dev,
unsigned int bus_id, unsigned int dev_id)
{
return dev->bus_id == bus_id && dev->dev_id == dev_id;
}
static int ps3_open_hv_device_sb(struct ps3_system_bus_device *dev)
{
int result;
BUG_ON(!dev->bus_id);
mutex_lock(&usage_hack.mutex);
if (ps3_is_device(dev, 1, 1)) {
usage_hack.sb_11++;
if (usage_hack.sb_11 > 1) {
result = 0;
goto done;
}
}
if (ps3_is_device(dev, 1, 2)) {
usage_hack.sb_12++;
if (usage_hack.sb_12 > 1) {
result = 0;
goto done;
}
}
result = lv1_open_device(dev->bus_id, dev->dev_id, 0);
if (result) {
pr_debug("%s:%d: lv1_open_device failed: %s\n", __func__,
__LINE__, ps3_result(result));
result = -EPERM;
}
done:
mutex_unlock(&usage_hack.mutex);
return result;
}
static int ps3_close_hv_device_sb(struct ps3_system_bus_device *dev)
{
int result;
BUG_ON(!dev->bus_id);
mutex_lock(&usage_hack.mutex);
if (ps3_is_device(dev, 1, 1)) {
usage_hack.sb_11--;
if (usage_hack.sb_11) {
result = 0;
goto done;
}
}
if (ps3_is_device(dev, 1, 2)) {
usage_hack.sb_12--;
if (usage_hack.sb_12) {
result = 0;
goto done;
}
}
result = lv1_close_device(dev->bus_id, dev->dev_id);
BUG_ON(result);
done:
mutex_unlock(&usage_hack.mutex);
return result;
}
static int ps3_open_hv_device_gpu(struct ps3_system_bus_device *dev)
{
int result;
mutex_lock(&usage_hack.mutex);
usage_hack.gpu++;
if (usage_hack.gpu > 1) {
result = 0;
goto done;
}
result = lv1_gpu_open(0);
if (result) {
pr_debug("%s:%d: lv1_gpu_open failed: %s\n", __func__,
__LINE__, ps3_result(result));
result = -EPERM;
}
done:
mutex_unlock(&usage_hack.mutex);
return result;
}
static int ps3_close_hv_device_gpu(struct ps3_system_bus_device *dev)
{
int result;
mutex_lock(&usage_hack.mutex);
usage_hack.gpu--;
if (usage_hack.gpu) {
result = 0;
goto done;
}
result = lv1_gpu_close();
BUG_ON(result);
done:
mutex_unlock(&usage_hack.mutex);
return result;
}
int ps3_open_hv_device(struct ps3_system_bus_device *dev)
{
BUG_ON(!dev);
pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id);
switch (dev->match_id) {
case PS3_MATCH_ID_EHCI:
case PS3_MATCH_ID_OHCI:
case PS3_MATCH_ID_GELIC:
case PS3_MATCH_ID_STOR_DISK:
case PS3_MATCH_ID_STOR_ROM:
case PS3_MATCH_ID_STOR_FLASH:
return ps3_open_hv_device_sb(dev);
case PS3_MATCH_ID_SOUND:
case PS3_MATCH_ID_GRAPHICS:
return ps3_open_hv_device_gpu(dev);
case PS3_MATCH_ID_AV_SETTINGS:
case PS3_MATCH_ID_SYSTEM_MANAGER:
pr_debug("%s:%d: unsupported match_id: %u\n", __func__,
__LINE__, dev->match_id);
pr_debug("%s:%d: bus_id: %u\n", __func__,
__LINE__, dev->bus_id);
BUG();
return -EINVAL;
default:
break;
}
pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__,
dev->match_id);
BUG();
return -ENODEV;
}
EXPORT_SYMBOL_GPL(ps3_open_hv_device);
int ps3_close_hv_device(struct ps3_system_bus_device *dev)
{
BUG_ON(!dev);
pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id);
switch (dev->match_id) {
case PS3_MATCH_ID_EHCI:
case PS3_MATCH_ID_OHCI:
case PS3_MATCH_ID_GELIC:
case PS3_MATCH_ID_STOR_DISK:
case PS3_MATCH_ID_STOR_ROM:
case PS3_MATCH_ID_STOR_FLASH:
return ps3_close_hv_device_sb(dev);
case PS3_MATCH_ID_SOUND:
case PS3_MATCH_ID_GRAPHICS:
return ps3_close_hv_device_gpu(dev);
case PS3_MATCH_ID_AV_SETTINGS:
case PS3_MATCH_ID_SYSTEM_MANAGER:
pr_debug("%s:%d: unsupported match_id: %u\n", __func__,
__LINE__, dev->match_id);
pr_debug("%s:%d: bus_id: %u\n", __func__,
__LINE__, dev->bus_id);
BUG();
return -EINVAL;
default:
break;
}
pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__,
dev->match_id);
BUG();
return -ENODEV;
}
EXPORT_SYMBOL_GPL(ps3_close_hv_device);
#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__)
static void _dump_mmio_region(const struct ps3_mmio_region* r,
const char* func, int line)
{
pr_debug("%s:%d: dev %u:%u\n", func, line, r->did.bus_id,
r->did.dev_id);
pr_debug("%s:%d: dev %u:%u\n", func, line, r->dev->bus_id,
r->dev->dev_id);
pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr);
pr_debug("%s:%d: len %lxh\n", func, line, r->len);
pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr);
}
int ps3_mmio_region_create(struct ps3_mmio_region *r)
static int ps3_sb_mmio_region_create(struct ps3_mmio_region *r)
{
int result;
result = lv1_map_device_mmio_region(r->did.bus_id, r->did.dev_id,
result = lv1_map_device_mmio_region(r->dev->bus_id, r->dev->dev_id,
r->bus_addr, r->len, r->page_size, &r->lpar_addr);
if (result) {
@ -57,13 +263,26 @@ int ps3_mmio_region_create(struct ps3_mmio_region *r)
dump_mmio_region(r);
return result;
}
static int ps3_ioc0_mmio_region_create(struct ps3_mmio_region *r)
{
/* device specific; do nothing currently */
return 0;
}
int ps3_mmio_region_create(struct ps3_mmio_region *r)
{
return r->mmio_ops->create(r);
}
EXPORT_SYMBOL_GPL(ps3_mmio_region_create);
int ps3_free_mmio_region(struct ps3_mmio_region *r)
static int ps3_sb_free_mmio_region(struct ps3_mmio_region *r)
{
int result;
result = lv1_unmap_device_mmio_region(r->did.bus_id, r->did.dev_id,
dump_mmio_region(r);
;
result = lv1_unmap_device_mmio_region(r->dev->bus_id, r->dev->dev_id,
r->lpar_addr);
if (result)
@ -73,14 +292,60 @@ int ps3_free_mmio_region(struct ps3_mmio_region *r)
r->lpar_addr = 0;
return result;
}
static int ps3_ioc0_free_mmio_region(struct ps3_mmio_region *r)
{
/* device specific; do nothing currently */
return 0;
}
int ps3_free_mmio_region(struct ps3_mmio_region *r)
{
return r->mmio_ops->free(r);
}
EXPORT_SYMBOL_GPL(ps3_free_mmio_region);
static const struct ps3_mmio_region_ops ps3_mmio_sb_region_ops = {
.create = ps3_sb_mmio_region_create,
.free = ps3_sb_free_mmio_region
};
static const struct ps3_mmio_region_ops ps3_mmio_ioc0_region_ops = {
.create = ps3_ioc0_mmio_region_create,
.free = ps3_ioc0_free_mmio_region
};
int ps3_mmio_region_init(struct ps3_system_bus_device *dev,
struct ps3_mmio_region *r, unsigned long bus_addr, unsigned long len,
enum ps3_mmio_page_size page_size)
{
r->dev = dev;
r->bus_addr = bus_addr;
r->len = len;
r->page_size = page_size;
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_SB:
r->mmio_ops = &ps3_mmio_sb_region_ops;
break;
case PS3_DEVICE_TYPE_IOC0:
r->mmio_ops = &ps3_mmio_ioc0_region_ops;
break;
default:
BUG();
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL_GPL(ps3_mmio_region_init);
static int ps3_system_bus_match(struct device *_dev,
struct device_driver *_drv)
{
int result;
struct ps3_system_bus_driver *drv = to_ps3_system_bus_driver(_drv);
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
result = dev->match_id == drv->match_id;
@ -92,32 +357,14 @@ static int ps3_system_bus_match(struct device *_dev,
static int ps3_system_bus_probe(struct device *_dev)
{
int result;
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_driver *drv =
to_ps3_system_bus_driver(_dev->driver);
int result = 0;
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
struct ps3_system_bus_driver *drv;
result = lv1_open_device(dev->did.bus_id, dev->did.dev_id, 0);
if (result) {
pr_debug("%s:%d: lv1_open_device failed (%d)\n",
__func__, __LINE__, result);
result = -EACCES;
goto clean_none;
}
if (dev->d_region->did.bus_id) {
result = ps3_dma_region_create(dev->d_region);
if (result) {
pr_debug("%s:%d: ps3_dma_region_create failed (%d)\n",
__func__, __LINE__, result);
BUG_ON("check region type");
result = -EINVAL;
goto clean_device;
}
}
BUG_ON(!dev);
pr_info(" -> %s:%d: %s\n", __func__, __LINE__, _dev->bus_id);
drv = ps3_system_bus_dev_to_system_bus_drv(dev);
BUG_ON(!drv);
if (drv->probe)
@ -126,38 +373,68 @@ static int ps3_system_bus_probe(struct device *_dev)
pr_info("%s:%d: %s no probe method\n", __func__, __LINE__,
dev->core.bus_id);
if (result) {
pr_debug("%s:%d: drv->probe failed\n", __func__, __LINE__);
goto clean_dma;
}
return result;
clean_dma:
ps3_dma_region_free(dev->d_region);
clean_device:
lv1_close_device(dev->did.bus_id, dev->did.dev_id);
clean_none:
pr_info(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
return result;
}
static int ps3_system_bus_remove(struct device *_dev)
{
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_driver *drv =
to_ps3_system_bus_driver(_dev->driver);
int result = 0;
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
struct ps3_system_bus_driver *drv;
BUG_ON(!dev);
pr_info(" -> %s:%d: %s\n", __func__, __LINE__, _dev->bus_id);
drv = ps3_system_bus_dev_to_system_bus_drv(dev);
BUG_ON(!drv);
if (drv->remove)
drv->remove(dev);
result = drv->remove(dev);
else
pr_info("%s:%d: %s no remove method\n", __func__, __LINE__,
dev->core.bus_id);
dev_dbg(&dev->core, "%s:%d %s: no remove method\n",
__func__, __LINE__, drv->core.name);
ps3_dma_region_free(dev->d_region);
ps3_free_mmio_region(dev->m_region);
lv1_close_device(dev->did.bus_id, dev->did.dev_id);
pr_info(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
return result;
}
return 0;
static void ps3_system_bus_shutdown(struct device *_dev)
{
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
struct ps3_system_bus_driver *drv;
BUG_ON(!dev);
dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__,
dev->match_id);
if (!dev->core.driver) {
dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__,
__LINE__);
return;
}
drv = ps3_system_bus_dev_to_system_bus_drv(dev);
BUG_ON(!drv);
dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__,
dev->core.bus_id, drv->core.name);
if (drv->shutdown)
drv->shutdown(dev);
else if (drv->remove) {
dev_dbg(&dev->core, "%s:%d %s: no shutdown, calling remove\n",
__func__, __LINE__, drv->core.name);
drv->remove(dev);
} else {
dev_dbg(&dev->core, "%s:%d %s: no shutdown method\n",
__func__, __LINE__, drv->core.name);
BUG();
}
dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
}
struct bus_type ps3_system_bus_type = {
@ -165,17 +442,27 @@ struct bus_type ps3_system_bus_type = {
.match = ps3_system_bus_match,
.probe = ps3_system_bus_probe,
.remove = ps3_system_bus_remove,
.shutdown = ps3_system_bus_shutdown,
};
int __init ps3_system_bus_init(void)
static int __init ps3_system_bus_init(void)
{
int result;
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return -ENODEV;
pr_debug(" -> %s:%d\n", __func__, __LINE__);
mutex_init(&usage_hack.mutex);
result = device_register(&ps3_system_bus);
BUG_ON(result);
result = bus_register(&ps3_system_bus_type);
BUG_ON(result);
pr_debug(" <- %s:%d\n", __func__, __LINE__);
return result;
}
@ -185,16 +472,13 @@ core_initcall(ps3_system_bus_init);
* Returns the virtual address of the buffer and sets dma_handle
* to the dma address (mapping) of the first page.
*/
static void * ps3_alloc_coherent(struct device *_dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
dma_addr_t *dma_handle, gfp_t flag)
{
int result;
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
unsigned long virt_addr;
BUG_ON(!dev->d_region->bus_addr);
flag &= ~(__GFP_DMA | __GFP_HIGHMEM);
flag |= __GFP_ZERO;
@ -205,7 +489,8 @@ static void * ps3_alloc_coherent(struct device *_dev, size_t size,
goto clean_none;
}
result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle);
result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle,
IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
if (result) {
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@ -226,7 +511,7 @@ clean_none:
static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
ps3_dma_unmap(dev->d_region, dma_handle, size);
free_pages((unsigned long)vaddr, get_order(size));
@ -239,15 +524,16 @@ static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
* byte within the page as vaddr.
*/
static dma_addr_t ps3_map_single(struct device *_dev, void *ptr, size_t size,
static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size,
enum dma_data_direction direction)
{
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
int result;
unsigned long bus_addr;
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
&bus_addr);
&bus_addr,
IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW | IOPTE_M);
if (result) {
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@ -257,10 +543,44 @@ static dma_addr_t ps3_map_single(struct device *_dev, void *ptr, size_t size,
return bus_addr;
}
static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr,
size_t size,
enum dma_data_direction direction)
{
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
int result;
unsigned long bus_addr;
u64 iopte_flag;
iopte_flag = IOPTE_M;
switch (direction) {
case DMA_BIDIRECTIONAL:
iopte_flag |= IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW;
break;
case DMA_TO_DEVICE:
iopte_flag |= IOPTE_PP_R | IOPTE_SO_R;
break;
case DMA_FROM_DEVICE:
iopte_flag |= IOPTE_PP_W | IOPTE_SO_RW;
break;
default:
/* not happned */
BUG();
};
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
&bus_addr, iopte_flag);
if (result) {
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
__func__, __LINE__, result);
}
return bus_addr;
}
static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction)
{
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
int result;
result = ps3_dma_unmap(dev->d_region, dma_addr, size);
@ -271,20 +591,20 @@ static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
}
}
static int ps3_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
#if defined(CONFIG_PS3_DYNAMIC_DMA)
BUG_ON("do");
return -EPERM;
#else
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
int i;
for (i = 0; i < nents; i++, sg++) {
int result = ps3_dma_map(dev->d_region,
page_to_phys(sg->page) + sg->offset, sg->length,
&sg->dma_address);
&sg->dma_address, 0);
if (result) {
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@ -299,7 +619,15 @@ static int ps3_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
#endif
}
static void ps3_unmap_sg(struct device *_dev, struct scatterlist *sg,
static int ps3_ioc0_map_sg(struct device *_dev, struct scatterlist *sg,
int nents,
enum dma_data_direction direction)
{
BUG();
return 0;
}
static void ps3_sb_unmap_sg(struct device *_dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction)
{
#if defined(CONFIG_PS3_DYNAMIC_DMA)
@ -307,18 +635,34 @@ static void ps3_unmap_sg(struct device *_dev, struct scatterlist *sg,
#endif
}
static void ps3_ioc0_unmap_sg(struct device *_dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction)
{
BUG();
}
static int ps3_dma_supported(struct device *_dev, u64 mask)
{
return mask >= DMA_32BIT_MASK;
}
static struct dma_mapping_ops ps3_dma_ops = {
static struct dma_mapping_ops ps3_sb_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
.map_single = ps3_map_single,
.map_single = ps3_sb_map_single,
.unmap_single = ps3_unmap_single,
.map_sg = ps3_map_sg,
.unmap_sg = ps3_unmap_sg,
.map_sg = ps3_sb_map_sg,
.unmap_sg = ps3_sb_unmap_sg,
.dma_supported = ps3_dma_supported
};
static struct dma_mapping_ops ps3_ioc0_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
.map_single = ps3_ioc0_map_single,
.unmap_single = ps3_unmap_single,
.map_sg = ps3_ioc0_map_sg,
.unmap_sg = ps3_ioc0_unmap_sg,
.dma_supported = ps3_dma_supported
};
@ -328,7 +672,7 @@ static struct dma_mapping_ops ps3_dma_ops = {
static void ps3_system_bus_release_device(struct device *_dev)
{
struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
kfree(dev);
}
@ -343,18 +687,37 @@ static void ps3_system_bus_release_device(struct device *_dev)
int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
{
int result;
static unsigned int dev_count = 1;
static unsigned int dev_ioc0_count;
static unsigned int dev_sb_count;
static unsigned int dev_vuart_count;
dev->core.parent = NULL;
if (!dev->core.parent)
dev->core.parent = &ps3_system_bus;
dev->core.bus = &ps3_system_bus_type;
dev->core.release = ps3_system_bus_release_device;
dev->core.archdata.of_node = NULL;
dev->core.archdata.dma_ops = &ps3_dma_ops;
dev->core.archdata.numa_node = 0;
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_IOC0:
dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
"ioc0_%02x", ++dev_ioc0_count);
break;
case PS3_DEVICE_TYPE_SB:
dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
"sb_%02x", ++dev_sb_count);
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), "sb_%02x",
dev_count++);
break;
case PS3_DEVICE_TYPE_VUART:
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
"vuart_%02x", ++dev_vuart_count);
break;
default:
BUG();
};
dev->core.archdata.of_node = NULL;
dev->core.archdata.numa_node = 0;
pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id);
@ -368,9 +731,15 @@ int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv)
{
int result;
pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name);
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return -ENODEV;
drv->core.bus = &ps3_system_bus_type;
result = driver_register(&drv->core);
pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name);
return result;
}
@ -378,7 +747,9 @@ EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register);
void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv)
{
pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name);
driver_unregister(&drv->core);
pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name);
}
EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister);

3
include/asm-powerpc/lv1call.h
View File

@ -238,6 +238,7 @@ LV1_CALL(destruct_virtual_address_space, 1, 0, 10 )
LV1_CALL(configure_irq_state_bitmap, 3, 0, 11 )
LV1_CALL(connect_irq_plug_ext, 5, 0, 12 )
LV1_CALL(release_memory, 1, 0, 13 )
LV1_CALL(put_iopte, 5, 0, 15 )
LV1_CALL(disconnect_irq_plug_ext, 3, 0, 17 )
LV1_CALL(construct_event_receive_port, 0, 1, 18 )
LV1_CALL(destruct_event_receive_port, 1, 0, 19 )
@ -268,6 +269,8 @@ LV1_CALL(remove_repository_node, 4, 0, 93 )
LV1_CALL(read_htab_entries, 2, 5, 95 )
LV1_CALL(set_dabr, 2, 0, 96 )
LV1_CALL(get_total_execution_time, 2, 1, 103 )
LV1_CALL(allocate_io_segment, 3, 1, 116 )
LV1_CALL(release_io_segment, 2, 0, 117 )
LV1_CALL(construct_io_irq_outlet, 1, 1, 120 )
LV1_CALL(destruct_io_irq_outlet, 1, 0, 121 )
LV1_CALL(map_htab, 1, 1, 122 )

148
include/asm-powerpc/ps3.h
View File

@ -49,18 +49,6 @@ enum ps3_param_av_multi_out {
enum ps3_param_av_multi_out ps3_os_area_get_av_multi_out(void);
/**
* struct ps3_device_id - HV bus device identifier from the system repository
* @bus_id: HV bus id, {1..} (zero invalid)
* @dev_id: HV device id, {0..}
*/
struct ps3_device_id {
unsigned int bus_id;
unsigned int dev_id;
};
/* dma routines */
enum ps3_dma_page_size {
@ -75,6 +63,8 @@ enum ps3_dma_region_type {
PS3_DMA_INTERNAL = 2,
};
struct ps3_dma_region_ops;
/**
* struct ps3_dma_region - A per device dma state variables structure
* @did: The HV device id.
@ -82,21 +72,42 @@ enum ps3_dma_region_type {
* @region_type: The HV region type.
* @bus_addr: The 'translated' bus address of the region.
* @len: The length in bytes of the region.
* @offset: The offset from the start of memory of the region.
* @ioid: The IOID of the device who owns this region
* @chunk_list: Opaque variable used by the ioc page manager.
* @region_ops: struct ps3_dma_region_ops - dma region operations
*/
struct ps3_dma_region {
struct ps3_device_id did;
struct ps3_system_bus_device *dev;
/* device variables */
const struct ps3_dma_region_ops *region_ops;
unsigned char ioid;
enum ps3_dma_page_size page_size;
enum ps3_dma_region_type region_type;
unsigned long bus_addr;
unsigned long len;
unsigned long offset;
/* driver variables (set by ps3_dma_region_create) */
unsigned long bus_addr;
struct {
spinlock_t lock;
struct list_head head;
} chunk_list;
};
struct ps3_dma_region_ops {
int (*create)(struct ps3_dma_region *);
int (*free)(struct ps3_dma_region *);
int (*map)(struct ps3_dma_region *,
unsigned long virt_addr,
unsigned long len,
unsigned long *bus_addr,
u64 iopte_pp);
int (*unmap)(struct ps3_dma_region *,
unsigned long bus_addr,
unsigned long len);
};
/**
* struct ps3_dma_region_init - Helper to initialize structure variables
*
@ -104,18 +115,16 @@ struct ps3_dma_region {
* ps3_system_bus_device_register.
*/
static inline void ps3_dma_region_init(struct ps3_dma_region *r,
const struct ps3_device_id* did, enum ps3_dma_page_size page_size,
enum ps3_dma_region_type region_type)
{
r->did = *did;
r->page_size = page_size;
r->region_type = region_type;
}
struct ps3_system_bus_device;
int ps3_dma_region_init(struct ps3_system_bus_device *dev,
struct ps3_dma_region *r, enum ps3_dma_page_size page_size,
enum ps3_dma_region_type region_type, void *addr, unsigned long len);
int ps3_dma_region_create(struct ps3_dma_region *r);
int ps3_dma_region_free(struct ps3_dma_region *r);
int ps3_dma_map(struct ps3_dma_region *r, unsigned long virt_addr,
unsigned long len, unsigned long *bus_addr);
unsigned long len, unsigned long *bus_addr,
u64 iopte_pp);
int ps3_dma_unmap(struct ps3_dma_region *r, unsigned long bus_addr,
unsigned long len);
@ -126,6 +135,7 @@ enum ps3_mmio_page_size {
PS3_MMIO_64K = 16U
};
struct ps3_mmio_region_ops;
/**
* struct ps3_mmio_region - a per device mmio state variables structure
*
@ -133,13 +143,18 @@ enum ps3_mmio_page_size {
*/
struct ps3_mmio_region {
struct ps3_device_id did;
struct ps3_system_bus_device *dev;
const struct ps3_mmio_region_ops *mmio_ops;
unsigned long bus_addr;
unsigned long len;
enum ps3_mmio_page_size page_size;
unsigned long lpar_addr;
};
struct ps3_mmio_region_ops {
int (*create)(struct ps3_mmio_region *);
int (*free)(struct ps3_mmio_region *);
};
/**
* struct ps3_mmio_region_init - Helper to initialize structure variables
*
@ -147,15 +162,9 @@ struct ps3_mmio_region {
* ps3_system_bus_device_register.
*/
static inline void ps3_mmio_region_init(struct ps3_mmio_region *r,
const struct ps3_device_id* did, unsigned long bus_addr,
unsigned long len, enum ps3_mmio_page_size page_size)
{
r->did = *did;
r->bus_addr = bus_addr;
r->len = len;
r->page_size = page_size;
}
int ps3_mmio_region_init(struct ps3_system_bus_device *dev,
struct ps3_mmio_region *r, unsigned long bus_addr, unsigned long len,
enum ps3_mmio_page_size page_size);
int ps3_mmio_region_create(struct ps3_mmio_region *r);
int ps3_free_mmio_region(struct ps3_mmio_region *r);
unsigned long ps3_mm_phys_to_lpar(unsigned long phys_addr);
@ -188,11 +197,10 @@ int ps3_spe_irq_setup(enum ps3_cpu_binding cpu, unsigned long spe_id,
unsigned int class, unsigned int *virq);
int ps3_spe_irq_destroy(unsigned int virq);
int ps3_sb_event_receive_port_setup(enum ps3_cpu_binding cpu,
const struct ps3_device_id *did, unsigned int interrupt_id,
unsigned int *virq);
int ps3_sb_event_receive_port_destroy(const struct ps3_device_id *did,
unsigned int interrupt_id, unsigned int virq);
int ps3_sb_event_receive_port_setup(struct ps3_system_bus_device *dev,
enum ps3_cpu_binding cpu, unsigned int *virq);
int ps3_sb_event_receive_port_destroy(struct ps3_system_bus_device *dev,
unsigned int virq);
/* lv1 result codes */
@ -290,11 +298,33 @@ static inline const char* ps3_result(int result)
/* system bus routines */
enum ps3_match_id {
PS3_MATCH_ID_EHCI = 1,
PS3_MATCH_ID_OHCI,
PS3_MATCH_ID_GELIC,
PS3_MATCH_ID_AV_SETTINGS,
PS3_MATCH_ID_SYSTEM_MANAGER,
PS3_MATCH_ID_EHCI = 1,
PS3_MATCH_ID_OHCI = 2,
PS3_MATCH_ID_GELIC = 3,
PS3_MATCH_ID_AV_SETTINGS = 4,
PS3_MATCH_ID_SYSTEM_MANAGER = 5,
PS3_MATCH_ID_STOR_DISK = 6,
PS3_MATCH_ID_STOR_ROM = 7,
PS3_MATCH_ID_STOR_FLASH = 8,
PS3_MATCH_ID_SOUND = 9,
PS3_MATCH_ID_GRAPHICS = 10,
};
#define PS3_MODULE_ALIAS_EHCI "ps3:1"
#define PS3_MODULE_ALIAS_OHCI "ps3:2"
#define PS3_MODULE_ALIAS_GELIC "ps3:3"
#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4"
#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5"
#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6"
#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7"
#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8"
#define PS3_MODULE_ALIAS_SOUND "ps3:9"
#define PS3_MODULE_ALIAS_GRAPHICS "ps3:10"
enum ps3_system_bus_device_type {
PS3_DEVICE_TYPE_IOC0 = 1,
PS3_DEVICE_TYPE_SB,
PS3_DEVICE_TYPE_VUART,
};
/**
@ -303,14 +333,23 @@ enum ps3_match_id {
struct ps3_system_bus_device {
enum ps3_match_id match_id;
struct ps3_device_id did;
unsigned int interrupt_id;
/* struct iommu_table *iommu_table; -- waiting for Ben's cleanups */
struct ps3_dma_region *d_region;
struct ps3_mmio_region *m_region;
enum ps3_system_bus_device_type dev_type;
unsigned int bus_id; /* SB */
unsigned int dev_id; /* SB */
unsigned int interrupt_id; /* SB */
struct ps3_dma_region *d_region; /* SB, IOC0 */
struct ps3_mmio_region *m_region; /* SB, IOC0*/
unsigned int port_number; /* VUART */
/* struct iommu_table *iommu_table; -- waiting for BenH's cleanups */
struct device core;
void *driver_priv; /* private driver variables */
};
int ps3_open_hv_device(struct ps3_system_bus_device *dev);
int ps3_close_hv_device(struct ps3_system_bus_device *dev);
/**
* struct ps3_system_bus_driver - a driver for a device on the system bus
*/
@ -320,6 +359,7 @@ struct ps3_system_bus_driver {
struct device_driver core;
int (*probe)(struct ps3_system_bus_device *);
int (*remove)(struct ps3_system_bus_device *);
int (*shutdown)(struct ps3_system_bus_device *);
/* int (*suspend)(struct ps3_system_bus_device *, pm_message_t); */
/* int (*resume)(struct ps3_system_bus_device *); */
};
@ -327,16 +367,24 @@ struct ps3_system_bus_driver {
int ps3_system_bus_device_register(struct ps3_system_bus_device *dev);
int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv);
void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv);
static inline struct ps3_system_bus_driver *to_ps3_system_bus_driver(
static inline struct ps3_system_bus_driver *ps3_drv_to_system_bus_drv(
struct device_driver *_drv)
{
return container_of(_drv, struct ps3_system_bus_driver, core);
}
static inline struct ps3_system_bus_device *to_ps3_system_bus_device(
static inline struct ps3_system_bus_device *ps3_dev_to_system_bus_dev(
struct device *_dev)
{
return container_of(_dev, struct ps3_system_bus_device, core);
}
static inline struct ps3_system_bus_driver *
ps3_system_bus_dev_to_system_bus_drv(struct ps3_system_bus_device *_dev)
{
BUG_ON(!_dev);
BUG_ON(!_dev->core.driver);
return ps3_drv_to_system_bus_drv(_dev->core.driver);
}
/**
* ps3_system_bus_set_drvdata -