Hi,
Às 10:25 AM de 1/12/2017, Kishon Vijay Abraham I escreveu:
> No functional change. dw_pcie_cfg_read/dw_pcie_cfg_write doesn't do
> anything specific to access configuration space. It can be just renamed
> to dw_pcie_read/dw_pcie_write and used to read/write data to dbi space.
> This is in preparation for added endpoint support to linux kernel.
>
> Cc: Jingoo Han <jingooh...@gmail.com>
> Cc: Murali Karicheri <m-kariche...@ti.com>
> Cc: Joao Pinto <joao.pi...@synopsys.com>
> Cc: Stanimir Varbanov <svarba...@mm-sol.com>
> Cc: Pratyush Anand <pratyush.an...@gmail.com>
> Signed-off-by: Kishon Vijay Abraham I <kis...@ti.com>
> ---
> drivers/pci/dwc/pci-dra7xx.c | 16 ++++++++--------
> drivers/pci/dwc/pci-exynos.c | 4 ++--
> drivers/pci/dwc/pci-keystone-dw.c | 4 ++--
> drivers/pci/dwc/pcie-designware.c | 12 ++++++------
> drivers/pci/dwc/pcie-designware.h | 4 ++--
> drivers/pci/dwc/pcie-qcom.c | 2 +-
> drivers/pci/dwc/pcie-spear13xx.c | 24 ++++++++++++------------
> 7 files changed, 33 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c
> index aeeab74..38b0c9a 100644
> --- a/drivers/pci/dwc/pci-dra7xx.c
> +++ b/drivers/pci/dwc/pci-dra7xx.c
> @@ -114,22 +114,22 @@ static int dra7xx_pcie_establish_link(struct
> dra7xx_pcie *dra7xx)
> }
>
> if (dra7xx->link_gen == 1) {
> - dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCAP,
> - 4, ®);
> + dw_pcie_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCAP,
> + 4, ®);
> if ((reg & PCI_EXP_LNKCAP_SLS) != PCI_EXP_LNKCAP_SLS_2_5GB) {
> reg &= ~((u32)PCI_EXP_LNKCAP_SLS);
> reg |= PCI_EXP_LNKCAP_SLS_2_5GB;
> - dw_pcie_cfg_write(pp->dbi_base + exp_cap_off +
> - PCI_EXP_LNKCAP, 4, reg);
> + dw_pcie_write(pp->dbi_base + exp_cap_off +
> + PCI_EXP_LNKCAP, 4, reg);
> }
>
> - dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCTL2,
> - 2, ®);
> + dw_pcie_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCTL2,
> + 2, ®);
> if ((reg & PCI_EXP_LNKCAP_SLS) != PCI_EXP_LNKCAP_SLS_2_5GB) {
> reg &= ~((u32)PCI_EXP_LNKCAP_SLS);
> reg |= PCI_EXP_LNKCAP_SLS_2_5GB;
> - dw_pcie_cfg_write(pp->dbi_base + exp_cap_off +
> - PCI_EXP_LNKCTL2, 2, reg);
> + dw_pcie_write(pp->dbi_base + exp_cap_off +
> + PCI_EXP_LNKCTL2, 2, reg);
> }
> }
>
> diff --git a/drivers/pci/dwc/pci-exynos.c b/drivers/pci/dwc/pci-exynos.c
> index c179e7a..e3fbff4 100644
> --- a/drivers/pci/dwc/pci-exynos.c
> +++ b/drivers/pci/dwc/pci-exynos.c
> @@ -429,7 +429,7 @@ static int exynos_pcie_rd_own_conf(struct pcie_port *pp,
> int where, int size,
> int ret;
>
> exynos_pcie_sideband_dbi_r_mode(exynos_pcie, true);
> - ret = dw_pcie_cfg_read(pp->dbi_base + where, size, val);
> + ret = dw_pcie_read(pp->dbi_base + where, size, val);
> exynos_pcie_sideband_dbi_r_mode(exynos_pcie, false);
> return ret;
> }
> @@ -441,7 +441,7 @@ static int exynos_pcie_wr_own_conf(struct pcie_port *pp,
> int where, int size,
> int ret;
>
> exynos_pcie_sideband_dbi_w_mode(exynos_pcie, true);
> - ret = dw_pcie_cfg_write(pp->dbi_base + where, size, val);
> + ret = dw_pcie_write(pp->dbi_base + where, size, val);
> exynos_pcie_sideband_dbi_w_mode(exynos_pcie, false);
> return ret;
> }
> diff --git a/drivers/pci/dwc/pci-keystone-dw.c
> b/drivers/pci/dwc/pci-keystone-dw.c
> index 9397c46..4875334 100644
> --- a/drivers/pci/dwc/pci-keystone-dw.c
> +++ b/drivers/pci/dwc/pci-keystone-dw.c
> @@ -444,7 +444,7 @@ int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct
> pci_bus *bus,
>
> addr = ks_pcie_cfg_setup(ks_pcie, bus_num, devfn);
>
> - return dw_pcie_cfg_read(addr + where, size, val);
> + return dw_pcie_read(addr + where, size, val);
> }
>
> int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
> @@ -456,7 +456,7 @@ int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct
> pci_bus *bus,
>
> addr = ks_pcie_cfg_setup(ks_pcie, bus_num, devfn);
>
> - return dw_pcie_cfg_write(addr + where, size, val);
> + return dw_pcie_write(addr + where, size, val);
> }
>
> /**
> diff --git a/drivers/pci/dwc/pcie-designware.c
> b/drivers/pci/dwc/pcie-designware.c
> index 0b928dc..d0ea310 100644
> --- a/drivers/pci/dwc/pcie-designware.c
> +++ b/drivers/pci/dwc/pcie-designware.c
> @@ -33,7 +33,7 @@
>
> static struct pci_ops dw_pcie_ops;
>
> -int dw_pcie_cfg_read(void __iomem *addr, int size, u32 *val)
> +int dw_pcie_read(void __iomem *addr, int size, u32 *val)
> {
> if ((uintptr_t)addr & (size - 1)) {
> *val = 0;
> @@ -54,7 +54,7 @@ int dw_pcie_cfg_read(void __iomem *addr, int size, u32 *val)
> return PCIBIOS_SUCCESSFUL;
> }
>
> -int dw_pcie_cfg_write(void __iomem *addr, int size, u32 val)
> +int dw_pcie_write(void __iomem *addr, int size, u32 val)
> {
> if ((uintptr_t)addr & (size - 1))
> return PCIBIOS_BAD_REGISTER_NUMBER;
> @@ -108,7 +108,7 @@ static int dw_pcie_rd_own_conf(struct pcie_port *pp, int
> where, int size,
> if (pp->ops->rd_own_conf)
> return pp->ops->rd_own_conf(pp, where, size, val);
>
> - return dw_pcie_cfg_read(pp->dbi_base + where, size, val);
> + return dw_pcie_read(pp->dbi_base + where, size, val);
> }
>
> static int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
> @@ -117,7 +117,7 @@ static int dw_pcie_wr_own_conf(struct pcie_port *pp, int
> where, int size,
> if (pp->ops->wr_own_conf)
> return pp->ops->wr_own_conf(pp, where, size, val);
>
> - return dw_pcie_cfg_write(pp->dbi_base + where, size, val);
> + return dw_pcie_write(pp->dbi_base + where, size, val);
> }
>
> static void dw_pcie_prog_outbound_atu(struct pcie_port *pp, int index,
> @@ -638,7 +638,7 @@ static int dw_pcie_rd_other_conf(struct pcie_port *pp,
> struct pci_bus *bus,
> dw_pcie_prog_outbound_atu(pp, PCIE_ATU_REGION_INDEX1,
> type, cpu_addr,
> busdev, cfg_size);
> - ret = dw_pcie_cfg_read(va_cfg_base + where, size, val);
> + ret = dw_pcie_read(va_cfg_base + where, size, val);
> if (pp->num_viewport <= 2)
> dw_pcie_prog_outbound_atu(pp, PCIE_ATU_REGION_INDEX1,
> PCIE_ATU_TYPE_IO, pp->io_base,
> @@ -676,7 +676,7 @@ static int dw_pcie_wr_other_conf(struct pcie_port *pp,
> struct pci_bus *bus,
> dw_pcie_prog_outbound_atu(pp, PCIE_ATU_REGION_INDEX1,
> type, cpu_addr,
> busdev, cfg_size);
> - ret = dw_pcie_cfg_write(va_cfg_base + where, size, val);
> + ret = dw_pcie_write(va_cfg_base + where, size, val);
> if (pp->num_viewport <= 2)
> dw_pcie_prog_outbound_atu(pp, PCIE_ATU_REGION_INDEX1,
> PCIE_ATU_TYPE_IO, pp->io_base,
> diff --git a/drivers/pci/dwc/pcie-designware.h
> b/drivers/pci/dwc/pcie-designware.h
> index a6cf9262..b6ddb05 100644
> --- a/drivers/pci/dwc/pcie-designware.h
> +++ b/drivers/pci/dwc/pcie-designware.h
> @@ -146,8 +146,8 @@ struct pcie_host_ops {
>
> u32 dw_pcie_readl_rc(struct pcie_port *pp, u32 reg);
> void dw_pcie_writel_rc(struct pcie_port *pp, u32 reg, u32 val);
> -int dw_pcie_cfg_read(void __iomem *addr, int size, u32 *val);
> -int dw_pcie_cfg_write(void __iomem *addr, int size, u32 val);
> +int dw_pcie_read(void __iomem *addr, int size, u32 *val);
> +int dw_pcie_write(void __iomem *addr, int size, u32 val);
> irqreturn_t dw_handle_msi_irq(struct pcie_port *pp);
> void dw_pcie_msi_init(struct pcie_port *pp);
> int dw_pcie_wait_for_link(struct pcie_port *pp);
> diff --git a/drivers/pci/dwc/pcie-qcom.c b/drivers/pci/dwc/pcie-qcom.c
> index 2c24c45..d75fc02 100644
> --- a/drivers/pci/dwc/pcie-qcom.c
> +++ b/drivers/pci/dwc/pcie-qcom.c
> @@ -630,7 +630,7 @@ static int qcom_pcie_rd_own_conf(struct pcie_port *pp,
> int where, int size,
> return PCIBIOS_SUCCESSFUL;
> }
>
> - return dw_pcie_cfg_read(pp->dbi_base + where, size, val);
> + return dw_pcie_read(pp->dbi_base + where, size, val);
> }
>
> static struct pcie_host_ops qcom_pcie_dw_ops = {
> diff --git a/drivers/pci/dwc/pcie-spear13xx.c
> b/drivers/pci/dwc/pcie-spear13xx.c
> index 5970566..7acf91e 100644
> --- a/drivers/pci/dwc/pcie-spear13xx.c
> +++ b/drivers/pci/dwc/pcie-spear13xx.c
> @@ -91,34 +91,34 @@ static int spear13xx_pcie_establish_link(struct
> spear13xx_pcie *spear13xx_pcie)
> * default value in capability register is 512 bytes. So force
> * it to 128 here.
> */
> - dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_DEVCTL, 2, &val);
> + dw_pcie_read(pp->dbi_base + exp_cap_off + PCI_EXP_DEVCTL, 2, &val);
> val &= ~PCI_EXP_DEVCTL_READRQ;
> - dw_pcie_cfg_write(pp->dbi_base + exp_cap_off + PCI_EXP_DEVCTL, 2, val);
> + dw_pcie_write(pp->dbi_base + exp_cap_off + PCI_EXP_DEVCTL, 2, val);
>
> - dw_pcie_cfg_write(pp->dbi_base + PCI_VENDOR_ID, 2, 0x104A);
> - dw_pcie_cfg_write(pp->dbi_base + PCI_DEVICE_ID, 2, 0xCD80);
> + dw_pcie_write(pp->dbi_base + PCI_VENDOR_ID, 2, 0x104A);
> + dw_pcie_write(pp->dbi_base + PCI_DEVICE_ID, 2, 0xCD80);
>
> /*
> * if is_gen1 is set then handle it, so that some buggy card
> * also works
> */
> if (spear13xx_pcie->is_gen1) {
> - dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCAP,
> - 4, &val);
> + dw_pcie_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCAP,
> + 4, &val);
> if ((val & PCI_EXP_LNKCAP_SLS) != PCI_EXP_LNKCAP_SLS_2_5GB) {
> val &= ~((u32)PCI_EXP_LNKCAP_SLS);
> val |= PCI_EXP_LNKCAP_SLS_2_5GB;
> - dw_pcie_cfg_write(pp->dbi_base + exp_cap_off +
> - PCI_EXP_LNKCAP, 4, val);
> + dw_pcie_write(pp->dbi_base + exp_cap_off +
> + PCI_EXP_LNKCAP, 4, val);
> }
>
> - dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCTL2,
> - 2, &val);
> + dw_pcie_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCTL2,
> + 2, &val);
> if ((val & PCI_EXP_LNKCAP_SLS) != PCI_EXP_LNKCAP_SLS_2_5GB) {
> val &= ~((u32)PCI_EXP_LNKCAP_SLS);
> val |= PCI_EXP_LNKCAP_SLS_2_5GB;
> - dw_pcie_cfg_write(pp->dbi_base + exp_cap_off +
> - PCI_EXP_LNKCTL2, 2, val);
> + dw_pcie_write(pp->dbi_base + exp_cap_off +
> + PCI_EXP_LNKCTL2, 2, val);
> }
> }
>
>
Make sense.
Reviewed-By: Joao Pinto <jpi...@synopsys.com>
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