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PNPACPI: add window support

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Add support for resource windows.  This is for bridge resources, i.e.,
regions where a bridge forwards transactions from the primary to the
secondary side.  This does not add support for *setting* windows via
the /proc interface.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2010-03-05 10:47:52 -07:00 committed by Len Brown
parent 9d7cca0421
commit fa35b49260
2 changed files with 24 additions and 17 deletions
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6
drivers/pnp/interface.c
View File

@ -278,9 +278,11 @@ static ssize_t pnp_show_current_resources(struct device *dmdev,
switch (pnp_resource_type(res)) { switch (pnp_resource_type(res)) {
case IORESOURCE_IO: case IORESOURCE_IO:
case IORESOURCE_MEM: case IORESOURCE_MEM:
pnp_printf(buffer, " %#llx-%#llx\n", pnp_printf(buffer, " %#llx-%#llx%s\n",
(unsigned long long) res->start, (unsigned long long) res->start,
(unsigned long long) res->end); (unsigned long long) res->end,
res->flags & IORESOURCE_WINDOW ?
" window" : "");
break; break;
case IORESOURCE_IRQ: case IORESOURCE_IRQ:
case IORESOURCE_DMA: case IORESOURCE_DMA:

35
drivers/pnp/pnpacpi/rsparser.c
View File

@ -177,7 +177,8 @@ static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
} }
static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start, static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
u64 len, int io_decode) u64 len, int io_decode,
int window)
{ {
int flags = 0; int flags = 0;
u64 end = start + len - 1; u64 end = start + len - 1;
@ -186,6 +187,8 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
flags |= IORESOURCE_IO_16BIT_ADDR; flags |= IORESOURCE_IO_16BIT_ADDR;
if (len == 0 || end >= 0x10003) if (len == 0 || end >= 0x10003)
flags |= IORESOURCE_DISABLED; flags |= IORESOURCE_DISABLED;
if (window)
flags |= IORESOURCE_WINDOW;
pnp_add_io_resource(dev, start, end, flags); pnp_add_io_resource(dev, start, end, flags);
} }
@ -247,7 +250,7 @@ static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev, static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
u64 start, u64 len, u64 start, u64 len,
int write_protect) int write_protect, int window)
{ {
int flags = 0; int flags = 0;
u64 end = start + len - 1; u64 end = start + len - 1;
@ -256,6 +259,8 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
flags |= IORESOURCE_DISABLED; flags |= IORESOURCE_DISABLED;
if (write_protect == ACPI_READ_WRITE_MEMORY) if (write_protect == ACPI_READ_WRITE_MEMORY)
flags |= IORESOURCE_MEM_WRITEABLE; flags |= IORESOURCE_MEM_WRITEABLE;
if (window)
flags |= IORESOURCE_WINDOW;
pnp_add_mem_resource(dev, start, end, flags); pnp_add_mem_resource(dev, start, end, flags);
} }
@ -265,6 +270,7 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
{ {
struct acpi_resource_address64 addr, *p = &addr; struct acpi_resource_address64 addr, *p = &addr;
acpi_status status; acpi_status status;
int window;
status = acpi_resource_to_address64(res, p); status = acpi_resource_to_address64(res, p);
if (!ACPI_SUCCESS(status)) { if (!ACPI_SUCCESS(status)) {
@ -273,37 +279,36 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
return; return;
} }
if (p->producer_consumer == ACPI_PRODUCER) window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
return;
if (p->resource_type == ACPI_MEMORY_RANGE) if (p->resource_type == ACPI_MEMORY_RANGE)
pnpacpi_parse_allocated_memresource(dev, pnpacpi_parse_allocated_memresource(dev,
p->minimum, p->address_length, p->minimum, p->address_length,
p->info.mem.write_protect); p->info.mem.write_protect, window);
else if (p->resource_type == ACPI_IO_RANGE) else if (p->resource_type == ACPI_IO_RANGE)
pnpacpi_parse_allocated_ioresource(dev, pnpacpi_parse_allocated_ioresource(dev,
p->minimum, p->address_length, p->minimum, p->address_length,
p->granularity == 0xfff ? ACPI_DECODE_10 : p->granularity == 0xfff ? ACPI_DECODE_10 :
ACPI_DECODE_16); ACPI_DECODE_16, window);
} }
static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev, static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
struct acpi_resource *res) struct acpi_resource *res)
{ {
struct acpi_resource_extended_address64 *p = &res->data.ext_address64; struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
int window;
if (p->producer_consumer == ACPI_PRODUCER) window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
return;
if (p->resource_type == ACPI_MEMORY_RANGE) if (p->resource_type == ACPI_MEMORY_RANGE)
pnpacpi_parse_allocated_memresource(dev, pnpacpi_parse_allocated_memresource(dev,
p->minimum, p->address_length, p->minimum, p->address_length,
p->info.mem.write_protect); p->info.mem.write_protect, window);
else if (p->resource_type == ACPI_IO_RANGE) else if (p->resource_type == ACPI_IO_RANGE)
pnpacpi_parse_allocated_ioresource(dev, pnpacpi_parse_allocated_ioresource(dev,
p->minimum, p->address_length, p->minimum, p->address_length,
p->granularity == 0xfff ? ACPI_DECODE_10 : p->granularity == 0xfff ? ACPI_DECODE_10 :
ACPI_DECODE_16); ACPI_DECODE_16, window);
} }
static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
@ -368,7 +373,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
pnpacpi_parse_allocated_ioresource(dev, pnpacpi_parse_allocated_ioresource(dev,
io->minimum, io->minimum,
io->address_length, io->address_length,
io->io_decode); io->io_decode, 0);
break; break;
case ACPI_RESOURCE_TYPE_START_DEPENDENT: case ACPI_RESOURCE_TYPE_START_DEPENDENT:
@ -380,7 +385,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
pnpacpi_parse_allocated_ioresource(dev, pnpacpi_parse_allocated_ioresource(dev,
fixed_io->address, fixed_io->address,
fixed_io->address_length, fixed_io->address_length,
ACPI_DECODE_10); ACPI_DECODE_10, 0);
break; break;
case ACPI_RESOURCE_TYPE_VENDOR: case ACPI_RESOURCE_TYPE_VENDOR:
@ -396,21 +401,21 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
pnpacpi_parse_allocated_memresource(dev, pnpacpi_parse_allocated_memresource(dev,
memory24->minimum, memory24->minimum,
memory24->address_length, memory24->address_length,
memory24->write_protect); memory24->write_protect, 0);
break; break;
case ACPI_RESOURCE_TYPE_MEMORY32: case ACPI_RESOURCE_TYPE_MEMORY32:
memory32 = &res->data.memory32; memory32 = &res->data.memory32;
pnpacpi_parse_allocated_memresource(dev, pnpacpi_parse_allocated_memresource(dev,
memory32->minimum, memory32->minimum,
memory32->address_length, memory32->address_length,
memory32->write_protect); memory32->write_protect, 0);
break; break;
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
fixed_memory32 = &res->data.fixed_memory32; fixed_memory32 = &res->data.fixed_memory32;
pnpacpi_parse_allocated_memresource(dev, pnpacpi_parse_allocated_memresource(dev,
fixed_memory32->address, fixed_memory32->address,
fixed_memory32->address_length, fixed_memory32->address_length,
fixed_memory32->write_protect); fixed_memory32->write_protect, 0);
break; break;
case ACPI_RESOURCE_TYPE_ADDRESS16: case ACPI_RESOURCE_TYPE_ADDRESS16:
case ACPI_RESOURCE_TYPE_ADDRESS32: case ACPI_RESOURCE_TYPE_ADDRESS32: