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| author | Kumar Gala <galak@kernel.crashing.org> | 2010-08-05 11:45:08 +0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-10-14 09:52:30 +0400 |
| commit | b8f44ec2c05f9cfe1647173ac60c0cccb1118c91 (patch) | |
| tree | 85a3dad04b89a5ba37e206dcb06a716ff4727924 /arch/powerpc/sysdev/fsl_msi.c | |
| parent | 4108d9ba9091c55cfb968d42dd7dcae9a098b876 (diff) | |
| download | linux-b8f44ec2c05f9cfe1647173ac60c0cccb1118c91.tar.xz | |
powerpc/fsl-pci: Fix MSI support on 83xx platforms
The following commit broke 83xx because it assumed the 83xx platforms
exposed the "IMMR" address in BAR0 like the 85xx/86xx/QoriQ devices do:
commit 3da34aae03d498ee62f75aa7467de93cce3030fd
Author: Kumar Gala <galak@kernel.crashing.org>
Date: Tue May 12 15:51:56 2009 -0500
powerpc/fsl: Support unique MSI addresses per PCIe Root Complex
However that is not true, so we have to search through the inbound
window settings on 83xx to find which one matches the IMMR address to
determine its PCI address.
Reported-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev/fsl_msi.c')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index 87991d3abbab..20cdcd2b0eed 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -24,6 +24,7 @@ #include <asm/ppc-pci.h> #include <asm/mpic.h> #include "fsl_msi.h" +#include "fsl_pci.h" LIST_HEAD(msi_head); @@ -125,13 +126,11 @@ static void fsl_compose_msi_msg(struct pci_dev *pdev, int hwirq, { struct fsl_msi *msi_data = fsl_msi_data; struct pci_controller *hose = pci_bus_to_host(pdev->bus); - u32 base = 0; + u64 base = fsl_pci_immrbar_base(hose); - pci_bus_read_config_dword(hose->bus, - PCI_DEVFN(0, 0), PCI_BASE_ADDRESS_0, &base); + msg->address_lo = msi_data->msi_addr_lo + lower_32_bits(base); + msg->address_hi = msi_data->msi_addr_hi + upper_32_bits(base); - msg->address_lo = msi_data->msi_addr_lo + base; - msg->address_hi = msi_data->msi_addr_hi; msg->data = hwirq; pr_debug("%s: allocated srs: %d, ibs: %d\n", |