| Message ID | 1404164720-11066-2-git-send-email-m-karicheri2@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
Hello Murali, > -----Original Message----- > From: Murali Karicheri [mailto:m-karicheri2@ti.com] > Sent: Tuesday, July 01, 2014 3:15 AM > To: linux-pci@vger.kernel.org; linux-kernel@vger.kernel.org; > devicetree@vger.kernel.org > Cc: Murali Karicheri; Santosh Shilimkar; Russell King; Grant Likely; Rob Herring; > Mohit KUMAR DCG; Jingoo Han; Bjorn Helgaas; Pratyush ANAND; Richard > Zhu; Kishon Vijay Abraham I; Marek Vasut; Arnd Bergmann; Pawel Moll; > Mark Rutland; Ian Campbell; Kumar Gala; Randy Dunlap > Subject: [PATCH v3 1/5] PCI: designware: add rd[wr]_other_conf API > > v3.65 version of the designware h/w, requires application space registers to > be configured to access the remote EP config space. > To support this, add rd[wr]_other_conf API in the pcie_host_opts > > Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> > > CC: Santosh Shilimkar <santosh.shilimkar@ti.com> > CC: Russell King <linux@arm.linux.org.uk> > CC: Grant Likely <grant.likely@linaro.org> > CC: Rob Herring <robh+dt@kernel.org> > CC: Mohit Kumar <mohit.kumar@st.com> > CC: Jingoo Han <jg1.han@samsung.com> > CC: Bjorn Helgaas <bhelgaas@google.com> > CC: Pratyush Anand <pratyush.anand@st.com> > CC: Richard Zhu <r65037@freescale.com> > CC: Kishon Vijay Abraham I <kishon@ti.com> > CC: Marek Vasut <marex@denx.de> > CC: Arnd Bergmann <arnd@arndb.de> > CC: Pawel Moll <pawel.moll@arm.com> > CC: Mark Rutland <mark.rutland@arm.com> > CC: Ian Campbell <ijc+devicetree@hellion.org.uk> > CC: Kumar Gala <galak@codeaurora.org> > CC: Randy Dunlap <rdunlap@infradead.org> > CC: Grant Likely <grant.likely@linaro.org> > --- > drivers/pci/host/pcie-designware.c | 12 ++++++++++-- > drivers/pci/host/pcie-designware.h | 4 ++++ > 2 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie- > designware.c > index 1eaf4df..d8f3af7 100644 > --- a/drivers/pci/host/pcie-designware.c > +++ b/drivers/pci/host/pcie-designware.c > @@ -656,7 +656,11 @@ static int dw_pcie_rd_conf(struct pci_bus *bus, u32 > devfn, int where, > } > > if (bus->number != pp->root_bus_nr) > - ret = dw_pcie_rd_other_conf(pp, bus, devfn, > + if (pp->ops->rd_other_conf) > + ret = pp->ops->rd_other_conf(pp, bus, devfn, > + where, size, val); > + else > + ret = dw_pcie_rd_other_conf(pp, bus, devfn, > where, size, val); > else > ret = dw_pcie_rd_own_conf(pp, where, size, val); @@ - > 679,7 +683,11 @@ static int dw_pcie_wr_conf(struct pci_bus *bus, u32 > devfn, > return PCIBIOS_DEVICE_NOT_FOUND; > > if (bus->number != pp->root_bus_nr) > - ret = dw_pcie_wr_other_conf(pp, bus, devfn, > + if (pp->ops->wr_other_conf) > + ret = pp->ops->wr_other_conf(pp, bus, devfn, > + where, size, val); > + else > + ret = dw_pcie_wr_other_conf(pp, bus, devfn, > where, size, val); > else > ret = dw_pcie_wr_own_conf(pp, where, size, val); diff --git > a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h > index 77f592f..8121901 100644 > --- a/drivers/pci/host/pcie-designware.h > +++ b/drivers/pci/host/pcie-designware.h > @@ -61,6 +61,10 @@ struct pcie_host_ops { > u32 val, void __iomem *dbi_base); > int (*rd_own_conf)(struct pcie_port *pp, int where, int size, u32 > *val); > int (*wr_own_conf)(struct pcie_port *pp, int where, int size, u32 > val); > + int (*rd_other_conf)(struct pcie_port *pp, struct pci_bus *bus, > + unsigned int devfn, int where, int size, u32 *val); > + int (*wr_other_conf)(struct pcie_port *pp, struct pci_bus *bus, > + unsigned int devfn, int where, int size, u32 val); > int (*link_up)(struct pcie_port *pp); > void (*host_init)(struct pcie_port *pp); }; - Now it looks good to me. Acked-by: Mohit Kumar <mohit.kumar@st.com> Regards Mohit > -- > 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 07/07/2014 12:11 AM, Mohit KUMAR DCG wrote: > Hello Murali, > >> -----Original Message----- >> From: Murali Karicheri [mailto:m-karicheri2@ti.com] >> Sent: Tuesday, July 01, 2014 3:15 AM >> To: linux-pci@vger.kernel.org; linux-kernel@vger.kernel.org; >> devicetree@vger.kernel.org >> Cc: Murali Karicheri; Santosh Shilimkar; Russell King; Grant Likely; Rob Herring; >> Mohit KUMAR DCG; Jingoo Han; Bjorn Helgaas; Pratyush ANAND; Richard >> Zhu; Kishon Vijay Abraham I; Marek Vasut; Arnd Bergmann; Pawel Moll; >> Mark Rutland; Ian Campbell; Kumar Gala; Randy Dunlap >> Subject: [PATCH v3 1/5] PCI: designware: add rd[wr]_other_conf API >> >> v3.65 version of the designware h/w, requires application space registers to >> be configured to access the remote EP config space. >> To support this, add rd[wr]_other_conf API in the pcie_host_opts >> >> Signed-off-by: Murali Karicheri<m-karicheri2@ti.com> >> >> CC: Santosh Shilimkar<santosh.shilimkar@ti.com> >> CC: Russell King<linux@arm.linux.org.uk> >> CC: Grant Likely<grant.likely@linaro.org> >> CC: Rob Herring<robh+dt@kernel.org> >> CC: Mohit Kumar<mohit.kumar@st.com> >> CC: Jingoo Han<jg1.han@samsung.com> >> CC: Bjorn Helgaas<bhelgaas@google.com> >> CC: Pratyush Anand<pratyush.anand@st.com> >> CC: Richard Zhu<r65037@freescale.com> >> CC: Kishon Vijay Abraham I<kishon@ti.com> >> CC: Marek Vasut<marex@denx.de> >> CC: Arnd Bergmann<arnd@arndb.de> >> CC: Pawel Moll<pawel.moll@arm.com> >> CC: Mark Rutland<mark.rutland@arm.com> >> CC: Ian Campbell<ijc+devicetree@hellion.org.uk> >> CC: Kumar Gala<galak@codeaurora.org> >> CC: Randy Dunlap<rdunlap@infradead.org> >> CC: Grant Likely<grant.likely@linaro.org> >> --- >> drivers/pci/host/pcie-designware.c | 12 ++++++++++-- >> drivers/pci/host/pcie-designware.h | 4 ++++ >> 2 files changed, 14 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie- >> designware.c >> index 1eaf4df..d8f3af7 100644 >> --- a/drivers/pci/host/pcie-designware.c >> +++ b/drivers/pci/host/pcie-designware.c >> @@ -656,7 +656,11 @@ static int dw_pcie_rd_conf(struct pci_bus *bus, u32 >> devfn, int where, >> } >> >> if (bus->number != pp->root_bus_nr) >> - ret = dw_pcie_rd_other_conf(pp, bus, devfn, >> + if (pp->ops->rd_other_conf) >> + ret = pp->ops->rd_other_conf(pp, bus, devfn, >> + where, size, val); >> + else >> + ret = dw_pcie_rd_other_conf(pp, bus, devfn, >> where, size, val); >> else >> ret = dw_pcie_rd_own_conf(pp, where, size, val); @@ - >> 679,7 +683,11 @@ static int dw_pcie_wr_conf(struct pci_bus *bus, u32 >> devfn, >> return PCIBIOS_DEVICE_NOT_FOUND; >> >> if (bus->number != pp->root_bus_nr) >> - ret = dw_pcie_wr_other_conf(pp, bus, devfn, >> + if (pp->ops->wr_other_conf) >> + ret = pp->ops->wr_other_conf(pp, bus, devfn, >> + where, size, val); >> + else >> + ret = dw_pcie_wr_other_conf(pp, bus, devfn, >> where, size, val); >> else >> ret = dw_pcie_wr_own_conf(pp, where, size, val); diff --git >> a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h >> index 77f592f..8121901 100644 >> --- a/drivers/pci/host/pcie-designware.h >> +++ b/drivers/pci/host/pcie-designware.h >> @@ -61,6 +61,10 @@ struct pcie_host_ops { >> u32 val, void __iomem *dbi_base); >> int (*rd_own_conf)(struct pcie_port *pp, int where, int size, u32 >> *val); >> int (*wr_own_conf)(struct pcie_port *pp, int where, int size, u32 >> val); >> + int (*rd_other_conf)(struct pcie_port *pp, struct pci_bus *bus, >> + unsigned int devfn, int where, int size, u32 *val); >> + int (*wr_other_conf)(struct pcie_port *pp, struct pci_bus *bus, >> + unsigned int devfn, int where, int size, u32 val); >> int (*link_up)(struct pcie_port *pp); >> void (*host_init)(struct pcie_port *pp); }; > > - Now it looks good to me. > > Acked-by: Mohit Kumar<mohit.kumar@st.com> > > Regards > Mohit >> -- >> 1.7.9.5 > Mohit, Thanks. Jingoo, could you provide your response or Ack? Thanks Murali -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tuesday, July 08, 2014 1:54 AM, Murali Karicheri wrote: > On 07/07/2014 12:11 AM, Mohit KUMAR DCG wrote: > > On Tuesday, July 01, 2014 3:15 AM, Murali Karicheri wrote: > >> > >> v3.65 version of the designware h/w, requires application space registers to > >> be configured to access the remote EP config space. > >> To support this, add rd[wr]_other_conf API in the pcie_host_opts > >> > >> Signed-off-by: Murali Karicheri<m-karicheri2@ti.com> > >> > >> CC: Santosh Shilimkar<santosh.shilimkar@ti.com> > >> CC: Russell King<linux@arm.linux.org.uk> > >> CC: Grant Likely<grant.likely@linaro.org> > >> CC: Rob Herring<robh+dt@kernel.org> > >> CC: Mohit Kumar<mohit.kumar@st.com> > >> CC: Jingoo Han<jg1.han@samsung.com> > >> CC: Bjorn Helgaas<bhelgaas@google.com> > >> CC: Pratyush Anand<pratyush.anand@st.com> > >> CC: Richard Zhu<r65037@freescale.com> > >> CC: Kishon Vijay Abraham I<kishon@ti.com> > >> CC: Marek Vasut<marex@denx.de> > >> CC: Arnd Bergmann<arnd@arndb.de> > >> CC: Pawel Moll<pawel.moll@arm.com> > >> CC: Mark Rutland<mark.rutland@arm.com> > >> CC: Ian Campbell<ijc+devicetree@hellion.org.uk> > >> CC: Kumar Gala<galak@codeaurora.org> > >> CC: Randy Dunlap<rdunlap@infradead.org> > >> CC: Grant Likely<grant.likely@linaro.org> > >> --- > >> drivers/pci/host/pcie-designware.c | 12 ++++++++++-- > >> drivers/pci/host/pcie-designware.h | 4 ++++ > >> 2 files changed, 14 insertions(+), 2 deletions(-) > >> > >> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie- > >> designware.c > >> index 1eaf4df..d8f3af7 100644 > >> --- a/drivers/pci/host/pcie-designware.c > >> +++ b/drivers/pci/host/pcie-designware.c > >> @@ -656,7 +656,11 @@ static int dw_pcie_rd_conf(struct pci_bus *bus, u32 > >> devfn, int where, > >> } > >> > >> if (bus->number != pp->root_bus_nr) > >> - ret = dw_pcie_rd_other_conf(pp, bus, devfn, > >> + if (pp->ops->rd_other_conf) > >> + ret = pp->ops->rd_other_conf(pp, bus, devfn, > >> + where, size, val); > >> + else > >> + ret = dw_pcie_rd_other_conf(pp, bus, devfn, > >> where, size, val); > >> else > >> ret = dw_pcie_rd_own_conf(pp, where, size, val); @@ - > >> 679,7 +683,11 @@ static int dw_pcie_wr_conf(struct pci_bus *bus, u32 > >> devfn, > >> return PCIBIOS_DEVICE_NOT_FOUND; > >> > >> if (bus->number != pp->root_bus_nr) > >> - ret = dw_pcie_wr_other_conf(pp, bus, devfn, > >> + if (pp->ops->wr_other_conf) > >> + ret = pp->ops->wr_other_conf(pp, bus, devfn, > >> + where, size, val); > >> + else > >> + ret = dw_pcie_wr_other_conf(pp, bus, devfn, > >> where, size, val); > >> else > >> ret = dw_pcie_wr_own_conf(pp, where, size, val); diff --git > >> a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h > >> index 77f592f..8121901 100644 > >> --- a/drivers/pci/host/pcie-designware.h > >> +++ b/drivers/pci/host/pcie-designware.h > >> @@ -61,6 +61,10 @@ struct pcie_host_ops { > >> u32 val, void __iomem *dbi_base); > >> int (*rd_own_conf)(struct pcie_port *pp, int where, int size, u32 > >> *val); > >> int (*wr_own_conf)(struct pcie_port *pp, int where, int size, u32 > >> val); > >> + int (*rd_other_conf)(struct pcie_port *pp, struct pci_bus *bus, > >> + unsigned int devfn, int where, int size, u32 *val); > >> + int (*wr_other_conf)(struct pcie_port *pp, struct pci_bus *bus, > >> + unsigned int devfn, int where, int size, u32 val); > >> int (*link_up)(struct pcie_port *pp); > >> void (*host_init)(struct pcie_port *pp); }; > > > > - Now it looks good to me. > > > > Acked-by: Mohit Kumar<mohit.kumar@st.com> > > > > Regards > > Mohit > >> -- > >> 1.7.9.5 > > > Mohit, > > Thanks. > > Jingoo, could you provide your response or Ack? Acked-by: Jingoo Han <jg1.han@samsung.com> Best regards, Jingoo Han > > Thanks > Murali > -- -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index 1eaf4df..d8f3af7 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -656,7 +656,11 @@ static int dw_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where, } if (bus->number != pp->root_bus_nr) - ret = dw_pcie_rd_other_conf(pp, bus, devfn, + if (pp->ops->rd_other_conf) + ret = pp->ops->rd_other_conf(pp, bus, devfn, + where, size, val); + else + ret = dw_pcie_rd_other_conf(pp, bus, devfn, where, size, val); else ret = dw_pcie_rd_own_conf(pp, where, size, val); @@ -679,7 +683,11 @@ static int dw_pcie_wr_conf(struct pci_bus *bus, u32 devfn, return PCIBIOS_DEVICE_NOT_FOUND; if (bus->number != pp->root_bus_nr) - ret = dw_pcie_wr_other_conf(pp, bus, devfn, + if (pp->ops->wr_other_conf) + ret = pp->ops->wr_other_conf(pp, bus, devfn, + where, size, val); + else + ret = dw_pcie_wr_other_conf(pp, bus, devfn, where, size, val); else ret = dw_pcie_wr_own_conf(pp, where, size, val); diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h index 77f592f..8121901 100644 --- a/drivers/pci/host/pcie-designware.h +++ b/drivers/pci/host/pcie-designware.h @@ -61,6 +61,10 @@ struct pcie_host_ops { u32 val, void __iomem *dbi_base); int (*rd_own_conf)(struct pcie_port *pp, int where, int size, u32 *val); int (*wr_own_conf)(struct pcie_port *pp, int where, int size, u32 val); + int (*rd_other_conf)(struct pcie_port *pp, struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 *val); + int (*wr_other_conf)(struct pcie_port *pp, struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 val); int (*link_up)(struct pcie_port *pp); void (*host_init)(struct pcie_port *pp); };
v3.65 version of the designware h/w, requires application space registers to be configured to access the remote EP config space. To support this, add rd[wr]_other_conf API in the pcie_host_opts Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> CC: Santosh Shilimkar <santosh.shilimkar@ti.com> CC: Russell King <linux@arm.linux.org.uk> CC: Grant Likely <grant.likely@linaro.org> CC: Rob Herring <robh+dt@kernel.org> CC: Mohit Kumar <mohit.kumar@st.com> CC: Jingoo Han <jg1.han@samsung.com> CC: Bjorn Helgaas <bhelgaas@google.com> CC: Pratyush Anand <pratyush.anand@st.com> CC: Richard Zhu <r65037@freescale.com> CC: Kishon Vijay Abraham I <kishon@ti.com> CC: Marek Vasut <marex@denx.de> CC: Arnd Bergmann <arnd@arndb.de> CC: Pawel Moll <pawel.moll@arm.com> CC: Mark Rutland <mark.rutland@arm.com> CC: Ian Campbell <ijc+devicetree@hellion.org.uk> CC: Kumar Gala <galak@codeaurora.org> CC: Randy Dunlap <rdunlap@infradead.org> CC: Grant Likely <grant.likely@linaro.org> --- drivers/pci/host/pcie-designware.c | 12 ++++++++++-- drivers/pci/host/pcie-designware.h | 4 ++++ 2 files changed, 14 insertions(+), 2 deletions(-)