On 06/13/2008 07:23 PM, Bjorn Helgaas wrote:
Thanks a lot! Your BIOS clearly claims that at least one of your
serial ports can be configured with DMA:
pnp 00:07: dependent set 5 (acceptable) io min 0x3f8 max 0x3f8 align 1 size 8 flags 0x1
pnp 00:07: dependent set 5 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 5 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
That's wierd, but whatever, we still have to be careful to give the
BIOS back what it expects, and I think that means we have to keep
track of that disabled DMA resource in pnpacpi_allocated_resource().
Can you please replace the debug patch with the one below and send me
the results again?
Index: work10/drivers/pnp/pnpacpi/rsparser.c
===================================================================
--- work10.orig/drivers/pnp/pnpacpi/rsparser.c 2008-06-11 12:46:28.000000000 -0600
+++ work10/drivers/pnp/pnpacpi/rsparser.c 2008-06-13 11:13:21.000000000 -0600
@@ -240,6 +240,7 @@ static acpi_status pnpacpi_allocated_res
struct acpi_resource_fixed_memory32 *fixed_memory32;
struct acpi_resource_extended_irq *extended_irq;
int i, flags;
+ u8 channel;
switch (res->type) {
case ACPI_RESOURCE_TYPE_IRQ:
@@ -259,13 +260,13 @@ static acpi_status pnpacpi_allocated_res
case ACPI_RESOURCE_TYPE_DMA:
dma = &res->data.dma;
- if (dma->channel_count > 0) {
- flags = dma_flags(dma->type, dma->bus_master,
- dma->transfer);
- if (dma->channels[0] == (u8) -1)
- flags |= IORESOURCE_DISABLED;
- pnp_add_dma_resource(dev, dma->channels[0], flags);
+ channel = dma->channels[0];
+ flags = dma_flags(dma->type, dma->bus_master, dma->transfer);
+ if (dma->channel_count == 0 || dma->channels[0] == (u8) -1) {
+ channel = -1;
+ flags = IORESOURCE_DISABLED;
}
+ pnp_add_dma_resource(dev, channel, flags);
break;
case ACPI_RESOURCE_TYPE_IO:
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
ACPI: bus type pnp registered
pnp 00:00: parse allocated resources
pnp 00:00: add io 0xcf8-0xcff flags 0x1
pnp 00:00: Plug and Play ACPI device, IDs PNP0a08 PNP0a03 (active)
pnp 00:01: parse allocated resources
pnp 00:01: add mem 0xfed14000-0xfed19fff flags 0x1
pnp 00:01: PNP0c01: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:01: Plug and Play ACPI device, IDs PNP0c01 (active)
pnp 00:02: parse allocated resources
pnp 00:02: add dma 4 flags 0x4
pnp 00:02: add io 0x0-0xf flags 0x1
pnp 00:02: add io 0x81-0x83 flags 0x1
pnp 00:02: add io 0x87-0x87 flags 0x1
pnp 00:02: add io 0x89-0x8b flags 0x1
pnp 00:02: add io 0x8f-0x8f flags 0x1
pnp 00:02: add io 0xc0-0xdf flags 0x1
pnp 00:02: Plug and Play ACPI device, IDs PNP0200 (active)
pnp 00:03: parse allocated resources
pnp 00:03: add io 0x70-0x71 flags 0x1
pnp 00:03: add irq 8 flags 0x1
pnp 00:03: Plug and Play ACPI device, IDs PNP0b00 (active)
pnp 00:04: parse allocated resources
pnp 00:04: add io 0x61-0x61 flags 0x1
pnp 00:04: Plug and Play ACPI device, IDs PNP0800 (active)
pnp 00:05: parse allocated resources
pnp 00:05: add io 0xf0-0xff flags 0x1
pnp 00:05: add irq 13 flags 0x1
pnp 00:05: Plug and Play ACPI device, IDs PNP0c04 (active)
pnp 00:06: parse allocated resources
pnp 00:06: add io 0x3f8-0x3ff flags 0x1
pnp 00:06: add irq 4 flags 0x1
pnp 00:06: add dma 255 flags 0x10000000
pnp 00:06: parse resource options
pnp 00:06: dependent set 0 (preferred) io min 0x3f8 max 0x3f8 align 1 size 8
flags 0x1
pnp 00:06: dependent set 0 (preferred) irq 4 flags 0x1
pnp 00:06: dependent set 1 (acceptable) io min 0x3f8 max 0x3f8 align 1 size 8
flags 0x1
pnp 00:06: dependent set 1 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:06: dependent set 2 (acceptable) io min 0x2f8 max 0x2f8 align 1 size 8
flags 0x1
pnp 00:06: dependent set 2 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:06: dependent set 3 (acceptable) io min 0x3e8 max 0x3e8 align 1 size 8
flags 0x1
pnp 00:06: dependent set 3 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:06: dependent set 4 (acceptable) io min 0x2e8 max 0x2e8 align 1 size 8
flags 0x1
pnp 00:06: dependent set 4 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:06: Plug and Play ACPI device, IDs PNP0501 (active)
pnp 00:07: parse allocated resources
pnp 00:07: add io 0x2f8-0x2ff flags 0x1
pnp 00:07: add irq 3 flags 0x1
pnp 00:07: add dma 255 flags 0x10000000
pnp 00:07: parse resource options
pnp 00:07: dependent set 0 (preferred) io min 0x2f8 max 0x2f8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 0 (preferred) irq 3 flags 0x1
pnp 00:07: dependent set 1 (acceptable) io min 0x3f8 max 0x3f8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 1 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 2 (acceptable) io min 0x2f8 max 0x2f8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 2 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 3 (acceptable) io min 0x3e8 max 0x3e8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 3 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 4 (acceptable) io min 0x2e8 max 0x2e8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 4 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 5 (acceptable) io min 0x3f8 max 0x3f8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 5 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 5 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
pnp 00:07: dependent set 6 (acceptable) io min 0x2f8 max 0x2f8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 6 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 6 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
pnp 00:07: dependent set 7 (acceptable) io min 0x3e8 max 0x3e8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 7 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 7 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
pnp 00:07: dependent set 8 (acceptable) io min 0x2e8 max 0x2e8 align 1 size 8
flags 0x1
pnp 00:07: dependent set 8 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:07: dependent set 8 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
pnp 00:07: Plug and Play ACPI device, IDs PNP0501 (active)
pnp 00:08: parse allocated resources
pnp 00:08: add io 0x3f0-0x3f5 flags 0x1
pnp 00:08: add io 0x3f7-0x3f7 flags 0x1
pnp 00:08: add irq 6 flags 0x1
pnp 00:08: add dma 2 flags 0x0
pnp 00:08: parse resource options
pnp 00:08: dependent set 0 (preferred) io min 0x3f0 max 0x3f0 align 1 size 6
flags 0x1
pnp 00:08: dependent set 0 (preferred) io min 0x3f7 max 0x3f7 align 1 size 1
flags 0x1
pnp 00:08: dependent set 0 (preferred) irq 6 flags 0x1
pnp 00:08: dependent set 0 (preferred) dma 2 (bitmask 0x4) flags 0x0
pnp 00:08: dependent set 1 (acceptable) io min 0x3f0 max 0x3f0 align 1 size 6
flags 0x1
pnp 00:08: dependent set 1 (acceptable) io min 0x3f7 max 0x3f7 align 1 size 1
flags 0x1
pnp 00:08: dependent set 1 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:08: dependent set 1 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
pnp 00:08: dependent set 2 (acceptable) io min 0x370 max 0x370 align 1 size 6
flags 0x1
pnp 00:08: dependent set 2 (acceptable) io min 0x377 max 0x377 align 1 size 1
flags 0x1
pnp 00:08: dependent set 2 (acceptable) irq 3 4 5 6 7 10 11 12 flags 0x1
pnp 00:08: dependent set 2 (acceptable) dma 0 1 2 3 (bitmask 0xf) flags 0x0
pnp 00:08: Plug and Play ACPI device, IDs PNP0700 (active)
pnp 00:09: parse allocated resources
pnp 00:09: add io 0x0-0xffffffffffffffff flags 0x10000001
pnp 00:09: add io 0xa20-0xa3f flags 0x1
pnp 00:09: add io 0xa00-0xa0f flags 0x1
pnp 00:09: add io 0xa10-0xa1f flags 0x1
pnp 00:09: add io 0xa40-0xa5f flags 0x1
pnp 00:09: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:09: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:0a: parse allocated resources
pnp 00:0a: add io 0x10-0x1f flags 0x1
pnp 00:0a: add io 0x22-0x3f flags 0x1
pnp 00:0a: add io 0x44-0x5f flags 0x1
pnp 00:0a: add io 0x62-0x63 flags 0x1
pnp 00:0a: add io 0x65-0x6f flags 0x1
pnp 00:0a: add io 0x72-0x7f flags 0x1
pnp 00:0a: add io 0x80-0x80 flags 0x1
pnp 00:0a: add io 0x84-0x86 flags 0x1
pnp 00:0a: add io 0x88-0x88 flags 0x1
pnp 00:0a: add io 0x8c-0x8e flags 0x1
pnp 00:0a: add io 0x90-0x9f flags 0x1
pnp 00:0a: add io 0xa2-0xbf flags 0x1
pnp 00:0a: add io 0xe0-0xef flags 0x1
pnp 00:0a: add io 0x4d0-0x4d1 flags 0x1
pnp 00:0a: add io 0x800-0x87f flags 0x1
pnp 00:0a: add io 0x0-0xffffffffffffffff flags 0x10000001
pnp 00:0a: add io 0x480-0x4bf flags 0x1
pnp 00:0a: add mem 0xfed1c000-0xfed1ffff flags 0x1
pnp 00:0a: add mem 0xfed20000-0xfed8ffff flags 0x1
pnp 00:0a: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:0a: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:0b: parse allocated resources
pnp 00:0b: add io 0x60-0x60 flags 0x1
pnp 00:0b: add io 0x64-0x64 flags 0x1
pnp 00:0b: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:0b: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:0c: parse allocated resources
pnp 00:0c: add mem 0xfed00000-0xfed003ff flags 0x0
pnp 00:0c: Plug and Play ACPI device, IDs PNP0103 (active)
pnp 00:0d: parse allocated resources
pnp 00:0d: add mem 0xffb00000-0xffbfffff flags 0x0
pnp 00:0d: add mem 0xfff00000-0xffffffff flags 0x0
pnp 00:0d: Plug and Play ACPI device, IDs INT0800 (active)
pnp 00:0e: parse allocated resources
pnp 00:0e: add mem 0xffc00000-0xffefffff flags 0x0
pnp 00:0e: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:0e: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:0f: parse allocated resources
pnp 00:0f: add mem 0xfec00000-0xfec00fff flags 0x0
pnp 00:0f: add mem 0xfee00000-0xfee00fff flags 0x0
pnp 00:0f: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:0f: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:10: parse allocated resources
pnp 00:10: add mem 0xe0000000-0xefffffff flags 0x0
pnp 00:10: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:10: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:11: parse allocated resources
pnp 00:11: add mem 0x0-0xffffffffffffffff flags 0x10000000
pnp 00:11: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:11: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:12: parse allocated resources
pnp 00:12: add mem 0xfed90000-0xfed90fff flags 0x1
pnp 00:12: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:12: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:13: parse allocated resources
pnp 00:13: add mem 0xfed91000-0xfed91fff flags 0x1
pnp 00:13: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:13: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:14: parse allocated resources
pnp 00:14: add mem 0xfed92000-0xfed92fff flags 0x1
pnp 00:14: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:14: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:15: parse allocated resources
pnp 00:15: add mem 0xfed93000-0xfed93fff flags 0x1
pnp 00:15: PNP0c02: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:15: Plug and Play ACPI device, IDs PNP0c02 (active)
pnp 00:16: parse allocated resources
pnp 00:16: add mem 0x0-0x9ffff flags 0x1
pnp 00:16: add mem 0xc0000-0xcffff flags 0x0
pnp 00:16: add mem 0xe0000-0xfffff flags 0x0
pnp 00:16: add mem 0x100000-0x7d5fffff flags 0x1
pnp 00:16: add mem 0x0-0xffffffffffffffff flags 0x10000000
pnp 00:16: PNP0c01: calling quirk_system_pci_resources+0x0/0x1d0
pnp 00:16: Plug and Play ACPI device, IDs PNP0c01 (active)
pnp: PnP ACPI: found 23 devices
...
serial 00:06: pnp_start_dev: current resources:
serial 00:06: io 0x3f8-0x3ff flags 0x101
serial 00:06: irq 4 flags 0x401
serial 00:06: dma disabled
serial 00:06: set resources
serial 00:06: encode 3 resources
serial 00:06: encode io 0x3f8-0x3ff decode 0x1
serial 00:06: encode irq 4 edge high exclusive (2-byte descriptor)
serial 00:06: encode dma 255 type 0x0 transfer 0x0 master 0
serial 00:06: activated
serial 00:07: pnp_start_dev: current resources:
serial 00:07: io 0x2f8-0x2ff flags 0x101
serial 00:07: irq 3 flags 0x401
serial 00:07: dma disabled
serial 00:07: set resources
serial 00:07: encode 3 resources
serial 00:07: encode io 0x2f8-0x2ff decode 0x1
serial 00:07: encode irq 3 edge high exclusive (2-byte descriptor)
serial 00:07: encode dma 255 type 0x0 transfer 0x0 master 0
serial 00:07: activated
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