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[v5,0/2] PCI: dwc: fix two MSI issues

Message ID 20200930091205.792d6c7c@xhacker.debian
Headers show
Series PCI: dwc: fix two MSI issues | expand

Message

Jisheng Zhang Sept. 30, 2020, 1:12 a.m. UTC
Fix two MSI issues. One to skip PCIE_MSI_INTR0* programming if MSI is
disabled, another to use an address in the driver data for MSI address,
to fix the MSI page leakage during suspend/resume.

Since v4:
  - fix pci-dra7xx.c

Since v3:
  - add Acked-by tag
  - change patch2 commit msg to make it clear
  - map the MSI msg with dma_map_single_attrs() for some platforms
    which either has seperate addrs for dma and phy or has mem access
    limitation for the PCIe.

Since v2:
  - add Acked-by tag
  - use an address in the driver data for MSI address. Thank Ard and Rob
    for pointing out this correct direction.
  - Since the MSI page has gone, the leak issue doesn't exist anymore,
    remove unnecessary patches.
  - Remove dw_pcie_free_msi rename and the last patch. They could be
    targeted to next. So will send out patches in a separate series.

Since v1:
  - add proper error handling patches.
  - solve the msi page leakage by moving dw_pcie_msi_init() from each
    users to designware host


Jisheng Zhang (2):
  PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled
  PCI: dwc: Fix MSI page leakage in suspend/resume

 drivers/pci/controller/dwc/pci-dra7xx.c       | 18 +++++++++-
 .../pci/controller/dwc/pcie-designware-host.c | 34 +++++++++----------
 drivers/pci/controller/dwc/pcie-designware.h  |  2 +-
 3 files changed, 35 insertions(+), 19 deletions(-)

Comments

Lorenzo Pieralisi Oct. 8, 2020, 11:36 a.m. UTC | #1
On Wed, Sep 30, 2020 at 09:12:05AM +0800, Jisheng Zhang wrote:
> Fix two MSI issues. One to skip PCIE_MSI_INTR0* programming if MSI is

> disabled, another to use an address in the driver data for MSI address,

> to fix the MSI page leakage during suspend/resume.

> 

> Since v4:

>   - fix pci-dra7xx.c

> 

> Since v3:

>   - add Acked-by tag

>   - change patch2 commit msg to make it clear

>   - map the MSI msg with dma_map_single_attrs() for some platforms

>     which either has seperate addrs for dma and phy or has mem access

>     limitation for the PCIe.

> 

> Since v2:

>   - add Acked-by tag

>   - use an address in the driver data for MSI address. Thank Ard and Rob

>     for pointing out this correct direction.

>   - Since the MSI page has gone, the leak issue doesn't exist anymore,

>     remove unnecessary patches.

>   - Remove dw_pcie_free_msi rename and the last patch. They could be

>     targeted to next. So will send out patches in a separate series.

> 

> Since v1:

>   - add proper error handling patches.

>   - solve the msi page leakage by moving dw_pcie_msi_init() from each

>     users to designware host

> 

> 

> Jisheng Zhang (2):

>   PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled

>   PCI: dwc: Fix MSI page leakage in suspend/resume

> 

>  drivers/pci/controller/dwc/pci-dra7xx.c       | 18 +++++++++-

>  .../pci/controller/dwc/pcie-designware-host.c | 34 +++++++++----------

>  drivers/pci/controller/dwc/pcie-designware.h  |  2 +-

>  3 files changed, 35 insertions(+), 19 deletions(-)


Hi,

can you rebase this series against my pci/dwc branch please ?

Thanks,
Lorenzo
Jisheng Zhang Oct. 9, 2020, 7:10 a.m. UTC | #2
On Thu, 8 Oct 2020 12:36:14 +0100 Lorenzo Pieralisi wrote:

> 

> On Wed, Sep 30, 2020 at 09:12:05AM +0800, Jisheng Zhang wrote:

> > Fix two MSI issues. One to skip PCIE_MSI_INTR0* programming if MSI is

> > disabled, another to use an address in the driver data for MSI address,

> > to fix the MSI page leakage during suspend/resume.

> >

> > Since v4:

> >   - fix pci-dra7xx.c

> >

> > Since v3:

> >   - add Acked-by tag

> >   - change patch2 commit msg to make it clear

> >   - map the MSI msg with dma_map_single_attrs() for some platforms

> >     which either has seperate addrs for dma and phy or has mem access

> >     limitation for the PCIe.

> >

> > Since v2:

> >   - add Acked-by tag

> >   - use an address in the driver data for MSI address. Thank Ard and Rob

> >     for pointing out this correct direction.

> >   - Since the MSI page has gone, the leak issue doesn't exist anymore,

> >     remove unnecessary patches.

> >   - Remove dw_pcie_free_msi rename and the last patch. They could be

> >     targeted to next. So will send out patches in a separate series.

> >

> > Since v1:

> >   - add proper error handling patches.

> >   - solve the msi page leakage by moving dw_pcie_msi_init() from each

> >     users to designware host

> >

> >

> > Jisheng Zhang (2):

> >   PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled

> >   PCI: dwc: Fix MSI page leakage in suspend/resume

> >

> >  drivers/pci/controller/dwc/pci-dra7xx.c       | 18 +++++++++-

> >  .../pci/controller/dwc/pcie-designware-host.c | 34 +++++++++----------

> >  drivers/pci/controller/dwc/pcie-designware.h  |  2 +-

> >  3 files changed, 35 insertions(+), 19 deletions(-)  

> 

> Hi,

> 

> can you rebase this series against my pci/dwc branch please ?

> 


Done in v6.

Thanks