Hello Pratyush,
> -----Original Message-----
> From: Pratyush ANAND
> Sent: Saturday, August 16, 2014 12:53 PM
> To: jg1.han@xxxxxxxxxxx; Mohit KUMAR DCG
> Cc: linux-pci@xxxxxxxxxxxxxxx; Pratyush ANAND
> Subject: [PATCH] PCIe: Designware: Extract struct pcie_port_info elements
> into struct pcie_port
>
> struct pcie_port_info elements are not containing any exclusive information
> compared to other elements of struct pcie_port. So, keeping a separate
> structure like struct pcie_port_info does not seem very logical. Therefore
> remove this struct and embed its elements directly into struct pcie_port.
>
> Signed-off-by: Pratyush Anand <pratyush.anand@xxxxxx>
> ---
> drivers/pci/host/pcie-designware.c | 53 +++++++++++++++++++--------------
> -----
> drivers/pci/host/pcie-designware.h | 16 +++++-------
> 2 files changed, 32 insertions(+), 37 deletions(-)
>
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-
> designware.c
> index 52bd3a143563..8b5237fe162f 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -435,16 +435,16 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
>
> cfg_res = platform_get_resource_byname(pdev,
> IORESOURCE_MEM, "config");
> if (cfg_res) {
> - pp->config.cfg0_size = resource_size(cfg_res)/2;
> - pp->config.cfg1_size = resource_size(cfg_res)/2;
> + pp->cfg0_size = resource_size(cfg_res)/2;
> + pp->cfg1_size = resource_size(cfg_res)/2;
> pp->cfg0_base = cfg_res->start;
> - pp->cfg1_base = cfg_res->start + pp->config.cfg0_size;
> + pp->cfg1_base = cfg_res->start + pp->cfg0_size;
>
> /* Find the untranslated configuration space address */
> index = of_property_match_string(np, "reg-names",
> "config");
> addrp = of_get_address(np, index, false, false);
> pp->cfg0_mod_base = of_read_number(addrp, ns);
> - pp->cfg1_mod_base = pp->cfg0_mod_base + pp-
> >config.cfg0_size;
> + pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
> } else {
> dev_err(pp->dev, "missing *config* reg space\n");
> }
> @@ -467,8 +467,8 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
> IO_SPACE_LIMIT,
> range.pci_addr + range.size
> + global_io_offset);
> - pp->config.io_size = resource_size(&pp->io);
> - pp->config.io_bus_addr = range.pci_addr;
> + pp->io_size = resource_size(&pp->io);
> + pp->io_bus_addr = range.pci_addr;
> pp->io_base = range.cpu_addr;
>
> /* Find the untranslated IO space address */ @@ -
> 478,8 +478,8 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
> if (restype == IORESOURCE_MEM) {
> of_pci_range_to_resource(&range, np, &pp->mem);
> pp->mem.name = "MEM";
> - pp->config.mem_size = resource_size(&pp->mem);
> - pp->config.mem_bus_addr = range.pci_addr;
> + pp->mem_size = resource_size(&pp->mem);
> + pp->mem_bus_addr = range.pci_addr;
>
> /* Find the untranslated MEM space address */
> pp->mem_mod_base =
> of_read_number(parser.range - @@ -487,16 +487,16 @@ int __init
> dw_pcie_host_init(struct pcie_port *pp)
> }
> if (restype == 0) {
> of_pci_range_to_resource(&range, np, &pp->cfg);
> - pp->config.cfg0_size = resource_size(&pp->cfg)/2;
> - pp->config.cfg1_size = resource_size(&pp->cfg)/2;
> + pp->cfg0_size = resource_size(&pp->cfg)/2;
> + pp->cfg1_size = resource_size(&pp->cfg)/2;
> pp->cfg0_base = pp->cfg.start;
> - pp->cfg1_base = pp->cfg.start + pp-
> >config.cfg0_size;
> + pp->cfg1_base = pp->cfg.start + pp->cfg0_size;
>
> /* Find the untranslated configuration space address
> */
> pp->cfg0_mod_base =
> of_read_number(parser.range -
> parser.np + na, ns);
> pp->cfg1_mod_base = pp->cfg0_mod_base +
> - pp->config.cfg0_size;
> + pp->cfg0_size;
> }
> }
>
> @@ -512,13 +512,13 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
> pp->mem_base = pp->mem.start;
>
> pp->va_cfg0_base = devm_ioremap(pp->dev, pp->cfg0_base,
> - pp->config.cfg0_size);
> + pp->cfg0_size);
> if (!pp->va_cfg0_base) {
> dev_err(pp->dev, "error with ioremap in function\n");
> return -ENOMEM;
> }
> pp->va_cfg1_base = devm_ioremap(pp->dev, pp->cfg1_base,
> - pp->config.cfg1_size);
> + pp->cfg1_size);
> if (!pp->va_cfg1_base) {
> dev_err(pp->dev, "error with ioremap\n");
> return -ENOMEM;
> @@ -573,7 +573,7 @@ static void dw_pcie_prog_viewport_cfg0(struct
> pcie_port *pp, u32 busdev)
> PCIE_ATU_VIEWPORT);
> dw_pcie_writel_rc(pp, pp->cfg0_mod_base,
> PCIE_ATU_LOWER_BASE);
> dw_pcie_writel_rc(pp, (pp->cfg0_mod_base >> 32),
> PCIE_ATU_UPPER_BASE);
> - dw_pcie_writel_rc(pp, pp->cfg0_mod_base + pp->config.cfg0_size -
> 1,
> + dw_pcie_writel_rc(pp, pp->cfg0_mod_base + pp->cfg0_size - 1,
> PCIE_ATU_LIMIT);
> dw_pcie_writel_rc(pp, busdev, PCIE_ATU_LOWER_TARGET);
> dw_pcie_writel_rc(pp, 0, PCIE_ATU_UPPER_TARGET); @@ -589,7
> +589,7 @@ static void dw_pcie_prog_viewport_cfg1(struct pcie_port *pp,
> u32 busdev)
> dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_CFG1, PCIE_ATU_CR1);
> dw_pcie_writel_rc(pp, pp->cfg1_mod_base,
> PCIE_ATU_LOWER_BASE);
> dw_pcie_writel_rc(pp, (pp->cfg1_mod_base >> 32),
> PCIE_ATU_UPPER_BASE);
> - dw_pcie_writel_rc(pp, pp->cfg1_mod_base + pp->config.cfg1_size -
> 1,
> + dw_pcie_writel_rc(pp, pp->cfg1_mod_base + pp->cfg1_size - 1,
> PCIE_ATU_LIMIT);
> dw_pcie_writel_rc(pp, busdev, PCIE_ATU_LOWER_TARGET);
> dw_pcie_writel_rc(pp, 0, PCIE_ATU_UPPER_TARGET); @@ -604,10
> +604,10 @@ static void dw_pcie_prog_viewport_mem_outbound(struct
> pcie_port *pp)
> dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_MEM, PCIE_ATU_CR1);
> dw_pcie_writel_rc(pp, pp->mem_mod_base,
> PCIE_ATU_LOWER_BASE);
> dw_pcie_writel_rc(pp, (pp->mem_mod_base >> 32),
> PCIE_ATU_UPPER_BASE);
> - dw_pcie_writel_rc(pp, pp->mem_mod_base + pp-
> >config.mem_size - 1,
> + dw_pcie_writel_rc(pp, pp->mem_mod_base + pp->mem_size - 1,
> PCIE_ATU_LIMIT);
> - dw_pcie_writel_rc(pp, pp->config.mem_bus_addr,
> PCIE_ATU_LOWER_TARGET);
> - dw_pcie_writel_rc(pp, upper_32_bits(pp->config.mem_bus_addr),
> + dw_pcie_writel_rc(pp, pp->mem_bus_addr,
> PCIE_ATU_LOWER_TARGET);
> + dw_pcie_writel_rc(pp, upper_32_bits(pp->mem_bus_addr),
> PCIE_ATU_UPPER_TARGET);
> dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); } @@ -
> 620,10 +620,10 @@ static void dw_pcie_prog_viewport_io_outbound(struct
> pcie_port *pp)
> dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_IO, PCIE_ATU_CR1);
> dw_pcie_writel_rc(pp, pp->io_mod_base,
> PCIE_ATU_LOWER_BASE);
> dw_pcie_writel_rc(pp, (pp->io_mod_base >> 32),
> PCIE_ATU_UPPER_BASE);
> - dw_pcie_writel_rc(pp, pp->io_mod_base + pp->config.io_size - 1,
> + dw_pcie_writel_rc(pp, pp->io_mod_base + pp->io_size - 1,
> PCIE_ATU_LIMIT);
> - dw_pcie_writel_rc(pp, pp->config.io_bus_addr,
> PCIE_ATU_LOWER_TARGET);
> - dw_pcie_writel_rc(pp, upper_32_bits(pp->config.io_bus_addr),
> + dw_pcie_writel_rc(pp, pp->io_bus_addr,
> PCIE_ATU_LOWER_TARGET);
> + dw_pcie_writel_rc(pp, upper_32_bits(pp->io_bus_addr),
> PCIE_ATU_UPPER_TARGET);
> dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); } @@ -
> 771,15 +771,15 @@ static int dw_pcie_setup(int nr, struct pci_sys_data *sys)
> if (!pp)
> return 0;
>
> - if (global_io_offset < SZ_1M && pp->config.io_size > 0) {
> - sys->io_offset = global_io_offset - pp->config.io_bus_addr;
> + if (global_io_offset < SZ_1M && pp->io_size > 0) {
> + sys->io_offset = global_io_offset - pp->io_bus_addr;
> pci_ioremap_io(global_io_offset, pp->io_base);
> global_io_offset += SZ_64K;
> pci_add_resource_offset(&sys->resources, &pp->io,
> sys->io_offset);
> }
>
> - sys->mem_offset = pp->mem.start - pp->config.mem_bus_addr;
> + sys->mem_offset = pp->mem.start - pp->mem_bus_addr;
> pci_add_resource_offset(&sys->resources, &pp->mem, sys-
> >mem_offset);
>
> return 1;
> @@ -833,7 +833,6 @@ static struct hw_pci dw_pci = {
>
> void dw_pcie_setup_rc(struct pcie_port *pp) {
> - struct pcie_port_info *config = &pp->config;
> u32 val;
> u32 membase;
> u32 memlimit;
> @@ -888,7 +887,7 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
>
> /* setup memory base, memory limit */
> membase = ((u32)pp->mem_base & 0xfff00000) >> 16;
> - memlimit = (config->mem_size + (u32)pp->mem_base) &
> 0xfff00000;
> + memlimit = (pp->mem_size + (u32)pp->mem_base) & 0xfff00000;
> val = memlimit | membase;
> dw_pcie_writel_rc(pp, val, PCI_MEMORY_BASE);
>
> diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-
> designware.h
> index daf81f922cda..80c1cd07c373 100644
> --- a/drivers/pci/host/pcie-designware.h
> +++ b/drivers/pci/host/pcie-designware.h
> @@ -14,15 +14,6 @@
> #ifndef _PCIE_DESIGNWARE_H
> #define _PCIE_DESIGNWARE_H
>
> -struct pcie_port_info {
> - u32 cfg0_size;
> - u32 cfg1_size;
> - u32 io_size;
> - u32 mem_size;
> - phys_addr_t io_bus_addr;
> - phys_addr_t mem_bus_addr;
> -};
> -
> /*
> * Maximum number of MSI IRQs can be 256 per controller. But keep
> * it 32 as of now. Probably we will never need more than 32. If needed, @@
> -38,17 +29,22 @@ struct pcie_port {
> u64 cfg0_base;
> u64 cfg0_mod_base;
> void __iomem *va_cfg0_base;
> + u32 cfg0_size;
> u64 cfg1_base;
> u64 cfg1_mod_base;
> void __iomem *va_cfg1_base;
> + u32 cfg1_size;
> u64 io_base;
> u64 io_mod_base;
> + phys_addr_t io_bus_addr;
> + u32 io_size;
> u64 mem_base;
> u64 mem_mod_base;
> + phys_addr_t mem_bus_addr;
> + u32 mem_size;
> struct resource cfg;
> struct resource io;
> struct resource mem;
> - struct pcie_port_info config;
> int irq;
> u32 lanes;
> struct pcie_host_ops *ops;
> --
> 1.8.1.2
- Thanks, it cleaned up some unnecessary nesting.
Acked-by: Mohit Kumar <mohit.kumar@xxxxxx>
Regards
Mohit
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