[PATCH 5.4 058/102] PCI: mobiveil: Fix csr_read()/write() build issue

From: Kefeng Wang wangkefeng.wang@huawei.com

[ Upstream commit 4906c05b87d44c19b225935e24d62e4480ca556d ]

RISCV has csr_read()/write() macros in arch/riscv/include/asm/csr.h.

The same function naming is used in the PCI mobiveil driver thus causing build error.

Rename csr_[read,write][l,] to mobiveil_csr_read()/write() to fix it.

drivers/pci/controller/pcie-mobiveil.c:238:69: error: macro "csr_read" passed 3 arguments, but takes just 1 static u32 csr_read(struct mobiveil_pcie *pcie, u32 off, size_t size)

drivers/pci/controller/pcie-mobiveil.c:253:80: error: macro "csr_write" passed 4 arguments, but takes just 2 static void csr_write(struct mobiveil_pcie *pcie, u32 val, u32 off, size_t size)

Fixes: bcbe0d9a8d93 ("PCI: mobiveil: Unify register accessors") Signed-off-by: Kefeng Wang wangkefeng.wang@huawei.com Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Reviewed-by: Andrew Murray andrew.murray@arm.com Cc: Hou Zhiqiang Zhiqiang.Hou@nxp.com Cc: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Cc: Minghuan Lian Minghuan.Lian@nxp.com Cc: Subrahmanya Lingappa l.subrahmanya@mobiveil.co.in Cc: Andrew Murray andrew.murray@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/pcie-mobiveil.c | 119 +++++++++++++------------ 1 file changed, 62 insertions(+), 57 deletions(-)

diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index a45a6447b01d9..32f37d08d5bc7 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -235,7 +235,7 @@ static int mobiveil_pcie_write(void __iomem *addr, int size, u32 val) return PCIBIOS_SUCCESSFUL; }

-static u32 csr_read(struct mobiveil_pcie *pcie, u32 off, size_t size) +static u32 mobiveil_csr_read(struct mobiveil_pcie *pcie, u32 off, size_t size) { void *addr; u32 val; @@ -250,7 +250,8 @@ static u32 csr_read(struct mobiveil_pcie *pcie, u32 off, size_t size) return val; }

-static void csr_write(struct mobiveil_pcie *pcie, u32 val, u32 off, size_t size) +static void mobiveil_csr_write(struct mobiveil_pcie *pcie, u32 val, u32 off, + size_t size) { void *addr; int ret; @@ -262,19 +263,19 @@ static void csr_write(struct mobiveil_pcie *pcie, u32 val, u32 off, size_t size) dev_err(&pcie->pdev->dev, "write CSR address failed\n"); }

-static u32 csr_readl(struct mobiveil_pcie *pcie, u32 off) +static u32 mobiveil_csr_readl(struct mobiveil_pcie *pcie, u32 off) { - return csr_read(pcie, off, 0x4); + return mobiveil_csr_read(pcie, off, 0x4); }

-static void csr_writel(struct mobiveil_pcie *pcie, u32 val, u32 off) +static void mobiveil_csr_writel(struct mobiveil_pcie *pcie, u32 val, u32 off) { - csr_write(pcie, val, off, 0x4); + mobiveil_csr_write(pcie, val, off, 0x4); }

static bool mobiveil_pcie_link_up(struct mobiveil_pcie *pcie) { - return (csr_readl(pcie, LTSSM_STATUS) & + return (mobiveil_csr_readl(pcie, LTSSM_STATUS) & LTSSM_STATUS_L0_MASK) == LTSSM_STATUS_L0; }

@@ -323,7 +324,7 @@ static void __iomem *mobiveil_pcie_map_bus(struct pci_bus *bus, PCI_SLOT(devfn) << PAB_DEVICE_SHIFT | PCI_FUNC(devfn) << PAB_FUNCTION_SHIFT;

- csr_writel(pcie, value, PAB_AXI_AMAP_PEX_WIN_L(WIN_NUM_0)); + mobiveil_csr_writel(pcie, value, PAB_AXI_AMAP_PEX_WIN_L(WIN_NUM_0));

return pcie->config_axi_slave_base + where; } @@ -353,13 +354,14 @@ static void mobiveil_pcie_isr(struct irq_desc *desc) chained_irq_enter(chip, desc);

/* read INTx status */ - val = csr_readl(pcie, PAB_INTP_AMBA_MISC_STAT); - mask = csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB); + val = mobiveil_csr_readl(pcie, PAB_INTP_AMBA_MISC_STAT); + mask = mobiveil_csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB); intr_status = val & mask;

/* Handle INTx */ if (intr_status & PAB_INTP_INTX_MASK) { - shifted_status = csr_readl(pcie, PAB_INTP_AMBA_MISC_STAT); + shifted_status = mobiveil_csr_readl(pcie, + PAB_INTP_AMBA_MISC_STAT); shifted_status &= PAB_INTP_INTX_MASK; shifted_status >>= PAB_INTX_START; do { @@ -373,12 +375,13 @@ static void mobiveil_pcie_isr(struct irq_desc *desc) bit);

/* clear interrupt handled */ - csr_writel(pcie, 1 << (PAB_INTX_START + bit), - PAB_INTP_AMBA_MISC_STAT); + mobiveil_csr_writel(pcie, + 1 << (PAB_INTX_START + bit), + PAB_INTP_AMBA_MISC_STAT); }

- shifted_status = csr_readl(pcie, - PAB_INTP_AMBA_MISC_STAT); + shifted_status = mobiveil_csr_readl(pcie, + PAB_INTP_AMBA_MISC_STAT); shifted_status &= PAB_INTP_INTX_MASK; shifted_status >>= PAB_INTX_START; } while (shifted_status != 0); @@ -413,7 +416,7 @@ static void mobiveil_pcie_isr(struct irq_desc *desc) }

/* Clear the interrupt status */ - csr_writel(pcie, intr_status, PAB_INTP_AMBA_MISC_STAT); + mobiveil_csr_writel(pcie, intr_status, PAB_INTP_AMBA_MISC_STAT); chained_irq_exit(chip, desc); }

@@ -474,24 +477,24 @@ static void program_ib_windows(struct mobiveil_pcie *pcie, int win_num, return; }

- value = csr_readl(pcie, PAB_PEX_AMAP_CTRL(win_num)); + value = mobiveil_csr_readl(pcie, PAB_PEX_AMAP_CTRL(win_num)); value &= ~(AMAP_CTRL_TYPE_MASK << AMAP_CTRL_TYPE_SHIFT | WIN_SIZE_MASK); value |= type << AMAP_CTRL_TYPE_SHIFT | 1 << AMAP_CTRL_EN_SHIFT | (lower_32_bits(size64) & WIN_SIZE_MASK); - csr_writel(pcie, value, PAB_PEX_AMAP_CTRL(win_num)); + mobiveil_csr_writel(pcie, value, PAB_PEX_AMAP_CTRL(win_num));

- csr_writel(pcie, upper_32_bits(size64), - PAB_EXT_PEX_AMAP_SIZEN(win_num)); + mobiveil_csr_writel(pcie, upper_32_bits(size64), + PAB_EXT_PEX_AMAP_SIZEN(win_num));

- csr_writel(pcie, lower_32_bits(cpu_addr), - PAB_PEX_AMAP_AXI_WIN(win_num)); - csr_writel(pcie, upper_32_bits(cpu_addr), - PAB_EXT_PEX_AMAP_AXI_WIN(win_num)); + mobiveil_csr_writel(pcie, lower_32_bits(cpu_addr), + PAB_PEX_AMAP_AXI_WIN(win_num)); + mobiveil_csr_writel(pcie, upper_32_bits(cpu_addr), + PAB_EXT_PEX_AMAP_AXI_WIN(win_num));

- csr_writel(pcie, lower_32_bits(pci_addr), - PAB_PEX_AMAP_PEX_WIN_L(win_num)); - csr_writel(pcie, upper_32_bits(pci_addr), - PAB_PEX_AMAP_PEX_WIN_H(win_num)); + mobiveil_csr_writel(pcie, lower_32_bits(pci_addr), + PAB_PEX_AMAP_PEX_WIN_L(win_num)); + mobiveil_csr_writel(pcie, upper_32_bits(pci_addr), + PAB_PEX_AMAP_PEX_WIN_H(win_num));

pcie->ib_wins_configured++; } @@ -515,27 +518,29 @@ static void program_ob_windows(struct mobiveil_pcie *pcie, int win_num, * program Enable Bit to 1, Type Bit to (00) base 2, AXI Window Size Bit * to 4 KB in PAB_AXI_AMAP_CTRL register */ - value = csr_readl(pcie, PAB_AXI_AMAP_CTRL(win_num)); + value = mobiveil_csr_readl(pcie, PAB_AXI_AMAP_CTRL(win_num)); value &= ~(WIN_TYPE_MASK << WIN_TYPE_SHIFT | WIN_SIZE_MASK); value |= 1 << WIN_ENABLE_SHIFT | type << WIN_TYPE_SHIFT | (lower_32_bits(size64) & WIN_SIZE_MASK); - csr_writel(pcie, value, PAB_AXI_AMAP_CTRL(win_num)); + mobiveil_csr_writel(pcie, value, PAB_AXI_AMAP_CTRL(win_num));

- csr_writel(pcie, upper_32_bits(size64), PAB_EXT_AXI_AMAP_SIZE(win_num)); + mobiveil_csr_writel(pcie, upper_32_bits(size64), + PAB_EXT_AXI_AMAP_SIZE(win_num));

/* * program AXI window base with appropriate value in * PAB_AXI_AMAP_AXI_WIN0 register */ - csr_writel(pcie, lower_32_bits(cpu_addr) & (~AXI_WINDOW_ALIGN_MASK), - PAB_AXI_AMAP_AXI_WIN(win_num)); - csr_writel(pcie, upper_32_bits(cpu_addr), - PAB_EXT_AXI_AMAP_AXI_WIN(win_num)); + mobiveil_csr_writel(pcie, + lower_32_bits(cpu_addr) & (~AXI_WINDOW_ALIGN_MASK), + PAB_AXI_AMAP_AXI_WIN(win_num)); + mobiveil_csr_writel(pcie, upper_32_bits(cpu_addr), + PAB_EXT_AXI_AMAP_AXI_WIN(win_num));

- csr_writel(pcie, lower_32_bits(pci_addr), - PAB_AXI_AMAP_PEX_WIN_L(win_num)); - csr_writel(pcie, upper_32_bits(pci_addr), - PAB_AXI_AMAP_PEX_WIN_H(win_num)); + mobiveil_csr_writel(pcie, lower_32_bits(pci_addr), + PAB_AXI_AMAP_PEX_WIN_L(win_num)); + mobiveil_csr_writel(pcie, upper_32_bits(pci_addr), + PAB_AXI_AMAP_PEX_WIN_H(win_num));

pcie->ob_wins_configured++; } @@ -579,42 +584,42 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) struct resource_entry *win;

/* setup bus numbers */ - value = csr_readl(pcie, PCI_PRIMARY_BUS); + value = mobiveil_csr_readl(pcie, PCI_PRIMARY_BUS); value &= 0xff000000; value |= 0x00ff0100; - csr_writel(pcie, value, PCI_PRIMARY_BUS); + mobiveil_csr_writel(pcie, value, PCI_PRIMARY_BUS);

/* * program Bus Master Enable Bit in Command Register in PAB Config * Space */ - value = csr_readl(pcie, PCI_COMMAND); + value = mobiveil_csr_readl(pcie, PCI_COMMAND); value |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; - csr_writel(pcie, value, PCI_COMMAND); + mobiveil_csr_writel(pcie, value, PCI_COMMAND);

/* * program PIO Enable Bit to 1 (and PEX PIO Enable to 1) in PAB_CTRL * register */ - pab_ctrl = csr_readl(pcie, PAB_CTRL); + pab_ctrl = mobiveil_csr_readl(pcie, PAB_CTRL); pab_ctrl |= (1 << AMBA_PIO_ENABLE_SHIFT) | (1 << PEX_PIO_ENABLE_SHIFT); - csr_writel(pcie, pab_ctrl, PAB_CTRL); + mobiveil_csr_writel(pcie, pab_ctrl, PAB_CTRL);

- csr_writel(pcie, (PAB_INTP_INTX_MASK | PAB_INTP_MSI_MASK), - PAB_INTP_AMBA_MISC_ENB); + mobiveil_csr_writel(pcie, (PAB_INTP_INTX_MASK | PAB_INTP_MSI_MASK), + PAB_INTP_AMBA_MISC_ENB);

/* * program PIO Enable Bit to 1 and Config Window Enable Bit to 1 in * PAB_AXI_PIO_CTRL Register */ - value = csr_readl(pcie, PAB_AXI_PIO_CTRL); + value = mobiveil_csr_readl(pcie, PAB_AXI_PIO_CTRL); value |= APIO_EN_MASK; - csr_writel(pcie, value, PAB_AXI_PIO_CTRL); + mobiveil_csr_writel(pcie, value, PAB_AXI_PIO_CTRL);

/* Enable PCIe PIO master */ - value = csr_readl(pcie, PAB_PEX_PIO_CTRL); + value = mobiveil_csr_readl(pcie, PAB_PEX_PIO_CTRL); value |= 1 << PIO_ENABLE_SHIFT; - csr_writel(pcie, value, PAB_PEX_PIO_CTRL); + mobiveil_csr_writel(pcie, value, PAB_PEX_PIO_CTRL);

/* * we'll program one outbound window for config reads and @@ -647,10 +652,10 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) }

/* fixup for PCIe class register */ - value = csr_readl(pcie, PAB_INTP_AXI_PIO_CLASS); + value = mobiveil_csr_readl(pcie, PAB_INTP_AXI_PIO_CLASS); value &= 0xff; value |= (PCI_CLASS_BRIDGE_PCI << 16); - csr_writel(pcie, value, PAB_INTP_AXI_PIO_CLASS); + mobiveil_csr_writel(pcie, value, PAB_INTP_AXI_PIO_CLASS);

/* setup MSI hardware registers */ mobiveil_pcie_enable_msi(pcie); @@ -668,9 +673,9 @@ static void mobiveil_mask_intx_irq(struct irq_data *data) pcie = irq_desc_get_chip_data(desc); mask = 1 << ((data->hwirq + PAB_INTX_START) - 1); raw_spin_lock_irqsave(&pcie->intx_mask_lock, flags); - shifted_val = csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB); + shifted_val = mobiveil_csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB); shifted_val &= ~mask; - csr_writel(pcie, shifted_val, PAB_INTP_AMBA_MISC_ENB); + mobiveil_csr_writel(pcie, shifted_val, PAB_INTP_AMBA_MISC_ENB); raw_spin_unlock_irqrestore(&pcie->intx_mask_lock, flags); }

@@ -684,9 +689,9 @@ static void mobiveil_unmask_intx_irq(struct irq_data *data) pcie = irq_desc_get_chip_data(desc); mask = 1 << ((data->hwirq + PAB_INTX_START) - 1); raw_spin_lock_irqsave(&pcie->intx_mask_lock, flags); - shifted_val = csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB); + shifted_val = mobiveil_csr_readl(pcie, PAB_INTP_AMBA_MISC_ENB); shifted_val |= mask; - csr_writel(pcie, shifted_val, PAB_INTP_AMBA_MISC_ENB); + mobiveil_csr_writel(pcie, shifted_val, PAB_INTP_AMBA_MISC_ENB); raw_spin_unlock_irqrestore(&pcie->intx_mask_lock, flags); }