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-rw-r--r--drivers/pci/host/pci-exynos.c132
-rw-r--r--drivers/pci/host/pci-tegra.c4
-rw-r--r--drivers/pci/host/pcie-designware.c257
-rw-r--r--drivers/pci/host/pcie-designware.h26
-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c2
-rw-r--r--drivers/pci/hotplug/acpiphp.h10
-rw-r--r--drivers/pci/hotplug/acpiphp_core.c37
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c23
-rw-r--r--drivers/pci/hotplug/acpiphp_ibm.c58
-rw-r--r--drivers/pci/hotplug/shpchp.h2
-rw-r--r--drivers/pci/pci-driver.c17
-rw-r--r--drivers/pci/pci-sysfs.c101
-rw-r--r--drivers/pci/pci.c2
-rw-r--r--drivers/pci/pci.h4
-rw-r--r--drivers/pci/probe.c4
-rw-r--r--drivers/pci/quirks.c23
-rw-r--r--drivers/pci/setup-bus.c4
17 files changed, 556 insertions, 150 deletions
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index 94e096bb2d0..24beed38ddc 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -48,6 +48,7 @@ struct exynos_pcie {
#define PCIE_IRQ_SPECIAL 0x008
#define PCIE_IRQ_EN_PULSE 0x00c
#define PCIE_IRQ_EN_LEVEL 0x010
+#define IRQ_MSI_ENABLE (0x1 << 2)
#define PCIE_IRQ_EN_SPECIAL 0x014
#define PCIE_PWR_RESET 0x018
#define PCIE_CORE_RESET 0x01c
@@ -77,18 +78,28 @@ struct exynos_pcie {
#define PCIE_PHY_PLL_BIAS 0x00c
#define PCIE_PHY_DCC_FEEDBACK 0x014
#define PCIE_PHY_PLL_DIV_1 0x05c
+#define PCIE_PHY_COMMON_POWER 0x064
+#define PCIE_PHY_COMMON_PD_CMN (0x1 << 3)
#define PCIE_PHY_TRSV0_EMP_LVL 0x084
#define PCIE_PHY_TRSV0_DRV_LVL 0x088
#define PCIE_PHY_TRSV0_RXCDR 0x0ac
+#define PCIE_PHY_TRSV0_POWER 0x0c4
+#define PCIE_PHY_TRSV0_PD_TSV (0x1 << 7)
#define PCIE_PHY_TRSV0_LVCC 0x0dc
#define PCIE_PHY_TRSV1_EMP_LVL 0x144
#define PCIE_PHY_TRSV1_RXCDR 0x16c
+#define PCIE_PHY_TRSV1_POWER 0x184
+#define PCIE_PHY_TRSV1_PD_TSV (0x1 << 7)
#define PCIE_PHY_TRSV1_LVCC 0x19c
#define PCIE_PHY_TRSV2_EMP_LVL 0x204
#define PCIE_PHY_TRSV2_RXCDR 0x22c
+#define PCIE_PHY_TRSV2_POWER 0x244
+#define PCIE_PHY_TRSV2_PD_TSV (0x1 << 7)
#define PCIE_PHY_TRSV2_LVCC 0x25c
#define PCIE_PHY_TRSV3_EMP_LVL 0x2c4
#define PCIE_PHY_TRSV3_RXCDR 0x2ec
+#define PCIE_PHY_TRSV3_POWER 0x304
+#define PCIE_PHY_TRSV3_PD_TSV (0x1 << 7)
#define PCIE_PHY_TRSV3_LVCC 0x31c
static inline void exynos_elb_writel(struct exynos_pcie *pcie, u32 val, u32 reg)
@@ -202,6 +213,58 @@ static void exynos_pcie_deassert_phy_reset(struct pcie_port *pp)
exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_TRSV_RESET);
}
+static void exynos_pcie_power_on_phy(struct pcie_port *pp)
+{
+ u32 val;
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_COMMON_POWER);
+ val &= ~PCIE_PHY_COMMON_PD_CMN;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_COMMON_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV0_POWER);
+ val &= ~PCIE_PHY_TRSV0_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV0_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV1_POWER);
+ val &= ~PCIE_PHY_TRSV1_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV1_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV2_POWER);
+ val &= ~PCIE_PHY_TRSV2_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV2_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV3_POWER);
+ val &= ~PCIE_PHY_TRSV3_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV3_POWER);
+}
+
+static void exynos_pcie_power_off_phy(struct pcie_port *pp)
+{
+ u32 val;
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_COMMON_POWER);
+ val |= PCIE_PHY_COMMON_PD_CMN;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_COMMON_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV0_POWER);
+ val |= PCIE_PHY_TRSV0_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV0_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV1_POWER);
+ val |= PCIE_PHY_TRSV1_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV1_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV2_POWER);
+ val |= PCIE_PHY_TRSV2_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV2_POWER);
+
+ val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV3_POWER);
+ val |= PCIE_PHY_TRSV3_PD_TSV;
+ exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV3_POWER);
+}
+
static void exynos_pcie_init_phy(struct pcie_port *pp)
{
struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
@@ -270,6 +333,9 @@ static int exynos_pcie_establish_link(struct pcie_port *pp)
/* de-assert phy reset */
exynos_pcie_deassert_phy_reset(pp);
+ /* power on phy */
+ exynos_pcie_power_on_phy(pp);
+
/* initialize phy */
exynos_pcie_init_phy(pp);
@@ -302,6 +368,9 @@ static int exynos_pcie_establish_link(struct pcie_port *pp)
PCIE_PHY_PLL_LOCKED);
dev_info(pp->dev, "PLL Locked: 0x%x\n", val);
}
+ /* power off phy */
+ exynos_pcie_power_off_phy(pp);
+
dev_err(pp->dev, "PCIe Link Fail\n");
return -EINVAL;
}
@@ -342,9 +411,36 @@ static irqreturn_t exynos_pcie_irq_handler(int irq, void *arg)
return IRQ_HANDLED;
}
+static irqreturn_t exynos_pcie_msi_irq_handler(int irq, void *arg)
+{
+ struct pcie_port *pp = arg;
+
+ dw_handle_msi_irq(pp);
+
+ return IRQ_HANDLED;
+}
+
+static void exynos_pcie_msi_init(struct pcie_port *pp)
+{
+ u32 val;
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+ dw_pcie_msi_init(pp);
+
+ /* enable MSI interrupt */
+ val = exynos_elb_readl(exynos_pcie, PCIE_IRQ_EN_LEVEL);
+ val |= IRQ_MSI_ENABLE;
+ exynos_elb_writel(exynos_pcie, val, PCIE_IRQ_EN_LEVEL);
+ return;
+}
+
static void exynos_pcie_enable_interrupts(struct pcie_port *pp)
{
exynos_pcie_enable_irq_pulse(pp);
+
+ if (IS_ENABLED(CONFIG_PCI_MSI))
+ exynos_pcie_msi_init(pp);
+
return;
}
@@ -430,6 +526,22 @@ static int add_pcie_port(struct pcie_port *pp, struct platform_device *pdev)
return ret;
}
+ if (IS_ENABLED(CONFIG_PCI_MSI)) {
+ pp->msi_irq = platform_get_irq(pdev, 0);
+ if (!pp->msi_irq) {
+ dev_err(&pdev->dev, "failed to get msi irq\n");
+ return -ENODEV;
+ }
+
+ ret = devm_request_irq(&pdev->dev, pp->msi_irq,
+ exynos_pcie_msi_irq_handler,
+ IRQF_SHARED, "exynos-pcie", pp);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to request msi irq\n");
+ return ret;
+ }
+ }
+
pp->root_bus_nr = -1;
pp->ops = &exynos_pcie_host_ops;
@@ -487,18 +599,24 @@ static int __init exynos_pcie_probe(struct platform_device *pdev)
elbi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
exynos_pcie->elbi_base = devm_ioremap_resource(&pdev->dev, elbi_base);
- if (IS_ERR(exynos_pcie->elbi_base))
- return PTR_ERR(exynos_pcie->elbi_base);
+ if (IS_ERR(exynos_pcie->elbi_base)) {
+ ret = PTR_ERR(exynos_pcie->elbi_base);
+ goto fail_bus_clk;
+ }
phy_base = platform_get_resource(pdev, IORESOURCE_MEM, 1);
exynos_pcie->phy_base = devm_ioremap_resource(&pdev->dev, phy_base);
- if (IS_ERR(exynos_pcie->phy_base))
- return PTR_ERR(exynos_pcie->phy_base);
+ if (IS_ERR(exynos_pcie->phy_base)) {
+ ret = PTR_ERR(exynos_pcie->phy_base);
+ goto fail_bus_clk;
+ }
block_base = platform_get_resource(pdev, IORESOURCE_MEM, 2);
exynos_pcie->block_base = devm_ioremap_resource(&pdev->dev, block_base);
- if (IS_ERR(exynos_pcie->block_base))
- return PTR_ERR(exynos_pcie->block_base);
+ if (IS_ERR(exynos_pcie->block_base)) {
+ ret = PTR_ERR(exynos_pcie->block_base);
+ goto fail_bus_clk;
+ }
ret = add_pcie_port(pp, pdev);
if (ret < 0)
@@ -535,7 +653,7 @@ static struct platform_driver exynos_pcie_driver = {
.driver = {
.name = "exynos-pcie",
.owner = THIS_MODULE,
- .of_match_table = of_match_ptr(exynos_pcie_of_match),
+ .of_match_table = exynos_pcie_of_match,
},
};
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 2e9888a0635..7c4f38dd42b 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -408,7 +408,7 @@ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie,
list_for_each_entry(bus, &pcie->busses, list)
if (bus->nr == busnr)
- return bus->area->addr;
+ return (void __iomem *)bus->area->addr;
bus = tegra_pcie_bus_alloc(pcie, busnr);
if (IS_ERR(bus))
@@ -416,7 +416,7 @@ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie,
list_add_tail(&bus->list, &pcie->busses);
- return bus->area->addr;
+ return (void __iomem *)bus->area->addr;
}
static void __iomem *tegra_pcie_conf_address(struct pci_bus *bus,
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index c10e9ac9bbb..1e1fea4d959 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -11,8 +11,11 @@
* published by the Free Software Foundation.
*/
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/msi.h>
#include <linux/of_address.h>
#include <linux/pci.h>
#include <linux/pci_regs.h>
@@ -64,7 +67,7 @@
static struct hw_pci dw_pci;
-unsigned long global_io_offset;
+static unsigned long global_io_offset;
static inline struct pcie_port *sys_to_pcie(struct pci_sys_data *sys)
{
@@ -115,8 +118,8 @@ static inline void dw_pcie_writel_rc(struct pcie_port *pp, u32 val, u32 reg)
writel(val, pp->dbi_base + reg);
}
-int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
- u32 *val)
+static int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
+ u32 *val)
{
int ret;
@@ -128,8 +131,8 @@ int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
return ret;
}
-int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
- u32 val)
+static int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
+ u32 val)
{
int ret;
@@ -142,6 +145,205 @@ int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
return ret;
}
+static struct irq_chip dw_msi_irq_chip = {
+ .name = "PCI-MSI",
+ .irq_enable = unmask_msi_irq,
+ .irq_disable = mask_msi_irq,
+ .irq_mask = mask_msi_irq,
+ .irq_unmask = unmask_msi_irq,
+};
+
+/* MSI int handler */
+void dw_handle_msi_irq(struct pcie_port *pp)
+{
+ unsigned long val;
+ int i, pos, irq;
+
+ for (i = 0; i < MAX_MSI_CTRLS; i++) {
+ dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4,
+ (u32 *)&val);
+ if (val) {
+ pos = 0;
+ while ((pos = find_next_bit(&val, 32, pos)) != 32) {
+ irq = irq_find_mapping(pp->irq_domain,
+ i * 32 + pos);
+ generic_handle_irq(irq);
+ pos++;
+ }
+ }
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4, val);
+ }
+}
+
+void dw_pcie_msi_init(struct pcie_port *pp)
+{
+ pp->msi_data = __get_free_pages(GFP_KERNEL, 0);
+
+ /* program the msi_data */
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
+ virt_to_phys((void *)pp->msi_data));
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4, 0);
+}
+
+static int find_valid_pos0(struct pcie_port *pp, int msgvec, int pos, int *pos0)
+{
+ int flag = 1;
+
+ do {
+ pos = find_next_zero_bit(pp->msi_irq_in_use,
+ MAX_MSI_IRQS, pos);
+ /*if you have reached to the end then get out from here.*/
+ if (pos == MAX_MSI_IRQS)
+ return -ENOSPC;
+ /*
+ * Check if this position is at correct offset.nvec is always a
+ * power of two. pos0 must be nvec bit alligned.
+ */
+ if (pos % msgvec)
+ pos += msgvec - (pos % msgvec);
+ else
+ flag = 0;
+ } while (flag);
+
+ *pos0 = pos;
+ return 0;
+}
+
+static int assign_irq(int no_irqs, struct msi_desc *desc, int *pos)
+{
+ int res, bit, irq, pos0, pos1, i;
+ u32 val;
+ struct pcie_port *pp = sys_to_pcie(desc->dev->bus->sysdata);
+
+ if (!pp) {
+ BUG();
+ return -EINVAL;
+ }
+
+ pos0 = find_first_zero_bit(pp->msi_irq_in_use,
+ MAX_MSI_IRQS);
+ if (pos0 % no_irqs) {
+ if (find_valid_pos0(pp, no_irqs, pos0, &pos0))
+ goto no_valid_irq;
+ }
+ if (no_irqs > 1) {
+ pos1 = find_next_bit(pp->msi_irq_in_use,
+ MAX_MSI_IRQS, pos0);
+ /* there must be nvec number of consecutive free bits */
+ while ((pos1 - pos0) < no_irqs) {
+ if (find_valid_pos0(pp, no_irqs, pos1, &pos0))
+ goto no_valid_irq;
+ pos1 = find_next_bit(pp->msi_irq_in_use,
+ MAX_MSI_IRQS, pos0);
+ }
+ }
+
+ irq = irq_find_mapping(pp->irq_domain, pos0);
+ if (!irq)
+ goto no_valid_irq;
+
+ i = 0;
+ while (i < no_irqs) {
+ set_bit(pos0 + i, pp->msi_irq_in_use);
+ irq_alloc_descs((irq + i), (irq + i), 1, 0);
+ irq_set_msi_desc(irq + i, desc);
+ /*Enable corresponding interrupt in MSI interrupt controller */
+ res = ((pos0 + i) / 32) * 12;
+ bit = (pos0 + i) % 32;
+ dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, &val);
+ val |= 1 << bit;
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, val);
+ i++;
+ }
+
+ *pos = pos0;
+ return irq;
+
+no_valid_irq:
+ *pos = pos0;
+ return -ENOSPC;
+}
+
+static void clear_irq(unsigned int irq)
+{
+ int res, bit, val, pos;
+ struct irq_desc *desc;
+ struct msi_desc *msi;
+ struct pcie_port *pp;
+ struct irq_data *data = irq_get_irq_data(irq);
+
+ /* get the port structure */
+ desc = irq_to_desc(irq);
+ msi = irq_desc_get_msi_desc(desc);
+ pp = sys_to_pcie(msi->dev->bus->sysdata);
+ if (!pp) {
+ BUG();
+ return;
+ }
+
+ pos = data->hwirq;
+
+ irq_free_desc(irq);
+
+ clear_bit(pos, pp->msi_irq_in_use);
+
+ /* Disable corresponding interrupt on MSI interrupt controller */
+ res = (pos / 32) * 12;
+ bit = pos % 32;
+ dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, &val);
+ val &= ~(1 << bit);
+ dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, val);
+}
+
+static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
+ struct msi_desc *desc)
+{
+ int irq, pos, msgvec;
+ u16 msg_ctr;
+ struct msi_msg msg;
+ struct pcie_port *pp = sys_to_pcie(pdev->bus->sysdata);
+
+ if (!pp) {
+ BUG();
+ return -EINVAL;
+ }
+
+ pci_read_config_word(pdev, desc->msi_attrib.pos+PCI_MSI_FLAGS,
+ &msg_ctr);
+ msgvec = (msg_ctr&PCI_MSI_FLAGS_QSIZE) >> 4;
+ if (msgvec == 0)
+ msgvec = (msg_ctr & PCI_MSI_FLAGS_QMASK) >> 1;
+ if (msgvec > 5)
+ msgvec = 0;
+
+ irq = assign_irq((1 << msgvec), desc, &pos);
+ if (irq < 0)
+ return irq;
+
+ msg_ctr &= ~PCI_MSI_FLAGS_QSIZE;
+ msg_ctr |= msgvec << 4;
+ pci_write_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS,
+ msg_ctr);
+ desc->msi_attrib.multiple = msgvec;
+
+ msg.address_lo = virt_to_phys((void *)pp->msi_data);
+ msg.address_hi = 0x0;
+ msg.data = pos;
+ write_msi_msg(irq, &msg);
+
+ return 0;
+}
+
+static void dw_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
+{
+ clear_irq(irq);
+}
+
+static struct msi_chip dw_pcie_msi_chip = {
+ .setup_irq = dw_msi_setup_irq,
+ .teardown_irq = dw_msi_teardown_irq,
+};
+
int dw_pcie_link_up(struct pcie_port *pp)
{
if (pp->ops->link_up)
@@ -150,12 +352,27 @@ int dw_pcie_link_up(struct pcie_port *pp)
return 0;
}
+static int dw_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
+ irq_hw_number_t hwirq)
+{
+ irq_set_chip_and_handler(irq, &dw_msi_irq_chip, handle_simple_irq);
+ irq_set_chip_data(irq, domain->host_data);
+ set_irq_flags(irq, IRQF_VALID);
+
+ return 0;
+}
+
+static const struct irq_domain_ops msi_domain_ops = {
+ .map = dw_pcie_msi_map,
+};
+
int __init dw_pcie_host_init(struct pcie_port *pp)
{
struct device_node *np = pp->dev->of_node;
struct of_pci_range range;
struct of_pci_range_parser parser;
u32 val;
+ int i;
if (of_pci_range_parser_init(&parser, np)) {
dev_err(pp->dev, "missing ranges property\n");
@@ -223,6 +440,19 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
return -EINVAL;
}
+ if (IS_ENABLED(CONFIG_PCI_MSI)) {
+ pp->irq_domain = irq_domain_add_linear(pp->dev->of_node,
+ MAX_MSI_IRQS, &msi_domain_ops,
+ &dw_pcie_msi_chip);
+ if (!pp->irq_domain) {
+ dev_err(pp->dev, "irq domain init failed\n");
+ return -ENXIO;
+ }
+
+ for (i = 0; i < MAX_MSI_IRQS; i++)
+ irq_create_mapping(pp->irq_domain, i);
+ }
+
if (pp->ops->host_init)
pp->ops->host_init(pp);
@@ -438,7 +668,7 @@ static struct pci_ops dw_pcie_ops = {
.write = dw_pcie_wr_conf,
};
-int dw_pcie_setup(int nr, struct pci_sys_data *sys)
+static int dw_pcie_setup(int nr, struct pci_sys_data *sys)
{
struct pcie_port *pp;
@@ -461,7 +691,7 @@ int dw_pcie_setup(int nr, struct pci_sys_data *sys)
return 1;
}
-struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
+static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
{
struct pci_bus *bus;
struct pcie_port *pp = sys_to_pcie(sys);
@@ -478,17 +708,28 @@ struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
return bus;
}
-int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct pcie_port *pp = sys_to_pcie(dev->bus->sysdata);
return pp->irq;
}
+static void dw_pcie_add_bus(struct pci_bus *bus)
+{
+ if (IS_ENABLED(CONFIG_PCI_MSI)) {
+ struct pcie_port *pp = sys_to_pcie(bus->sysdata);
+
+ dw_pcie_msi_chip.dev = pp->dev;
+ bus->msi = &dw_pcie_msi_chip;
+ }
+}
+
static struct hw_pci dw_pci = {
.setup = dw_pcie_setup,
.scan = dw_pcie_scan_bus,
.map_irq = dw_pcie_map_irq,
+ .add_bus = dw_pcie_add_bus,
};
void dw_pcie_setup_rc(struct pcie_port *pp)
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index 133820f1da9..c15379be237 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -11,6 +11,9 @@
* published by the Free Software Foundation.
*/
+#ifndef _PCIE_DESIGNWARE_H
+#define _PCIE_DESIGNWARE_H
+
struct pcie_port_info {
u32 cfg0_size;
u32 cfg1_size;
@@ -20,6 +23,14 @@ struct pcie_port_info {
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,
+ * then increment it in multiple of 32.
+ */
+#define MAX_MSI_IRQS 32
+#define MAX_MSI_CTRLS (MAX_MSI_IRQS / 32)
+
struct pcie_port {
struct device *dev;
u8 root_bus_nr;
@@ -38,6 +49,10 @@ struct pcie_port {
int irq;
u32 lanes;
struct pcie_host_ops *ops;
+ int msi_irq;
+ struct irq_domain *irq_domain;
+ unsigned long msi_data;
+ DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
};
struct pcie_host_ops {
@@ -51,15 +66,12 @@ struct pcie_host_ops {
void (*host_init)(struct pcie_port *pp);
};
-extern unsigned long global_io_offset;
-
int cfg_read(void __iomem *addr, int where, int size, u32 *val);
int cfg_write(void __iomem *addr, int where, int size, u32 val);
-int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size, u32 val);
-int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size, u32 *val);
+void dw_handle_msi_irq(struct pcie_port *pp);
+void dw_pcie_msi_init(struct pcie_port *pp);
int dw_pcie_link_up(struct pcie_port *pp);
void dw_pcie_setup_rc(struct pcie_port *pp);
int dw_pcie_host_init(struct pcie_port *pp);
-int dw_pcie_setup(int nr, struct pci_sys_data *sys);
-struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys);
-int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+#endif /* _PCIE_DESIGNWARE_H */
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 2a47e82821d..f8140164ec0 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -338,7 +338,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
acpi_handle chandle, handle;
struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
- flags &= OSC_SHPC_NATIVE_HP_CONTROL;
+ flags &= OSC_PCI_SHPC_NATIVE_HP_CONTROL;
if (!flags) {
err("Invalid flags %u specified!\n", flags);
return -EINVAL;
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index f4e02892466..26100f510b1 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -39,16 +39,6 @@
#include <linux/mutex.h>
#include <linux/pci_hotplug.h>
-#define dbg(format, arg...) \
- do { \
- if (acpiphp_debug) \
- printk(KERN_DEBUG "%s: " format, \
- MY_NAME , ## arg); \
- } while (0)
-#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
-#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
-
struct acpiphp_context;
struct acpiphp_bridge;
struct acpiphp_slot;
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index bf2203ef130..8650d39db39 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -31,6 +31,8 @@
*
*/
+#define pr_fmt(fmt) "acpiphp: " fmt
+
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -43,12 +45,9 @@
#include <linux/smp.h>
#include "acpiphp.h"
-#define MY_NAME "acpiphp"
-
/* name size which is used for entries in pcihpfs */
#define SLOT_NAME_SIZE 21 /* {_SUN} */
-bool acpiphp_debug;
bool acpiphp_disabled;
/* local variables */
@@ -61,9 +60,7 @@ static struct acpiphp_attention_info *attention_info;
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
MODULE_PARM_DESC(disable, "disable acpiphp driver");
-module_param_named(debug, acpiphp_debug, bool, 0644);
module_param_named(disable, acpiphp_disabled, bool, 0444);
/* export the attention callback registration methods */
@@ -139,7 +136,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+ pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
/* enable the specified slot */
return acpiphp_enable_slot(slot->acpi_slot);
@@ -156,7 +153,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+ pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
/* disable the specified slot */
return acpiphp_disable_and_eject_slot(slot->acpi_slot);
@@ -176,8 +173,9 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
{
int retval = -ENODEV;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
-
+ pr_debug("%s - physical_slot = %s\n", __func__,
+ hotplug_slot_name(hotplug_slot));
+
if (attention_info && try_module_get(attention_info->owner)) {
retval = attention_info->set_attn(hotplug_slot, status);
module_put(attention_info->owner);
@@ -199,7 +197,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+ pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = acpiphp_get_power_status(slot->acpi_slot);
@@ -221,7 +219,8 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
int retval = -EINVAL;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
+ pr_debug("%s - physical_slot = %s\n", __func__,
+ hotplug_slot_name(hotplug_slot));
if (attention_info && try_module_get(attention_info->owner)) {
retval = attention_info->get_attn(hotplug_slot, value);
@@ -244,7 +243,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+ pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = acpiphp_get_latch_status(slot->acpi_slot);
@@ -264,7 +263,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+ pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = acpiphp_get_adapter_status(slot->acpi_slot);
@@ -279,7 +278,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+ pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
kfree(slot->hotplug_slot);
kfree(slot);
@@ -322,11 +321,11 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot,
if (retval == -EBUSY)
goto error_hpslot;
if (retval) {
- err("pci_hp_register failed with error %d\n", retval);
+ pr_err("pci_hp_register failed with error %d\n", retval);
goto error_hpslot;
}
- info("Slot [%s] registered\n", slot_name(slot));
+ pr_info("Slot [%s] registered\n", slot_name(slot));
return 0;
error_hpslot:
@@ -343,17 +342,17 @@ void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
struct slot *slot = acpiphp_slot->slot;
int retval = 0;
- info("Slot [%s] unregistered\n", slot_name(slot));
+ pr_info("Slot [%s] unregistered\n", slot_name(slot));
retval = pci_hp_deregister(slot->hotplug_slot);
if (retval)
- err("pci_hp_deregister failed with error %d\n", retval);
+ pr_err("pci_hp_deregister failed with error %d\n", retval);
}
void __init acpiphp_init(void)
{
- info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
+ pr_info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
acpiphp_disabled ? ", disabled by user; please report a bug"
: "");
}
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 0b7d23b4ad9..6557702a059 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -39,6 +39,8 @@
* bus. It loses the refcount when the the driver unloads.
*/
+#define pr_fmt(fmt) "acpiphp_glue: " fmt
+
#include <linux/init.h>
#include <linux/module.h>
@@ -58,8 +60,6 @@ static LIST_HEAD(bridge_list);
static DEFINE_MUTEX(bridge_mutex);
static DEFINE_MUTEX(acpiphp_context_lock);
-#define MY_NAME "acpiphp_glue"
-
static void handle_hotplug_event(acpi_handle handle, u32 type, void *data);
static void acpiphp_sanitize_bus(struct pci_bus *bus);
static void acpiphp_set_hpp_values(struct pci_bus *bus);
@@ -335,7 +335,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
if (ACPI_FAILURE(status))
sun = bridge->nr_slots;
- dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
+ pr_debug("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
sun, pci_domain_nr(pbus), pbus->number, device);
retval = acpiphp_register_hotplug_slot(slot, sun);
@@ -343,10 +343,10 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
slot->slot = NULL;
bridge->nr_slots--;
if (retval == -EBUSY)
- warn("Slot %llu already registered by another "
+ pr_warn("Slot %llu already registered by another "
"hotplug driver\n", sun);
else
- warn("acpiphp_register_hotplug_slot failed "
+ pr_warn("acpiphp_register_hotplug_slot failed "
"(err code = 0x%x)\n", retval);
}
/* Even if the slot registration fails, we can still use it. */
@@ -369,7 +369,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
if (register_hotplug_dock_device(handle,
&acpiphp_dock_ops, context,
acpiphp_dock_init, acpiphp_dock_release))
- dbg("failed to register dock device\n");
+ pr_debug("failed to register dock device\n");
}
/* install notify handler */
@@ -427,7 +427,7 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge)
ACPI_SYSTEM_NOTIFY,
handle_hotplug_event);
if (ACPI_FAILURE(status))
- err("failed to remove notify handler\n");
+ pr_err("failed to remove notify handler\n");
}
}
if (slot->slot)
@@ -830,8 +830,9 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
/* bus re-enumerate */
- dbg("%s: Bus check notify on %s\n", __func__, objname);
- dbg("%s: re-enumerating slots under %s\n", __func__, objname);
+ pr_debug("%s: Bus check notify on %s\n", __func__, objname);
+ pr_debug("%s: re-enumerating slots under %s\n",
+ __func__, objname);
if (bridge) {
acpiphp_check_bridge(bridge);
} else {
@@ -845,7 +846,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
case ACPI_NOTIFY_DEVICE_CHECK:
/* device check */
- dbg("%s: Device check notify on %s\n", __func__, objname);
+ pr_debug("%s: Device check notify on %s\n", __func__, objname);
if (bridge) {
acpiphp_check_bridge(bridge);
} else {
@@ -866,7 +867,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
case ACPI_NOTIFY_EJECT_REQUEST:
/* request device eject */
- dbg("%s: Device eject notify on %s\n", __func__, objname);
+ pr_debug("%s: Device eject notify on %s\n", __func__, objname);
acpiphp_disable_and_eject_slot(func->slot);
break;
}
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 2f5786c8522..0d64c414bf7 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -25,6 +25,8 @@
*
*/
+#define pr_fmt(fmt) "acpiphp_ibm: " fmt
+
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -43,23 +45,11 @@
#define DRIVER_AUTHOR "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver IBM extension"
-static bool debug;
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);
-module_param(debug, bool, 0644);
-MODULE_PARM_DESC(debug, " Debugging mode enabled or not");
-#define MY_NAME "acpiphp_ibm"
-
-#undef dbg
-#define dbg(format, arg...) \
-do { \
- if (debug) \
- printk(KERN_DEBUG "%s: " format, \
- MY_NAME , ## arg); \
-} while (0)
#define FOUND_APCI 0x61504349
/* these are the names for the IBM ACPI pseudo-device */
@@ -189,7 +179,7 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
ibm_slot = ibm_slot_from_id(hpslot_to_sun(slot));
- dbg("%s: set slot %d (%d) attention status to %d\n", __func__,
+ pr_debug("%s: set slot %d (%d) attention status to %d\n", __func__,
ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
(status ? 1 : 0));
@@ -202,10 +192,10 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
stat = acpi_evaluate_integer(ibm_acpi_handle, "APLS", &params, &rc);
if (ACPI_FAILURE(stat)) {
- err("APLS evaluation failed: 0x%08x\n", stat);
+ pr_err("APLS evaluation failed: 0x%08x\n", stat);
return -ENODEV;
} else if (!rc) {
- err("APLS method failed: 0x%08llx\n", rc);
+ pr_err("APLS method failed: 0x%08llx\n", rc);
return -ERANGE;
}
return 0;
@@ -234,7 +224,7 @@ static int ibm_get_attention_status(struct hotplug_slot *slot, u8 *status)
else
*status = 0;
- dbg("%s: get slot %d (%d) attention status is %d\n", __func__,
+ pr_debug("%s: get slot %d (%d) attention status is %d\n", __func__,
ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
*status);
@@ -266,10 +256,10 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
u8 subevent = event & 0xf0;
struct notification *note = context;
- dbg("%s: Received notification %02x\n", __func__, event);
+ pr_debug("%s: Received notification %02x\n", __func__, event);
if (subevent == 0x80) {
- dbg("%s: generationg bus event\n", __func__);
+ pr_debug("%s: generationg bus event\n", __func__);
acpi_bus_generate_netlink_event(note->device->pnp.device_class,
dev_name(&note->device->dev),
note->event, detail);
@@ -301,7 +291,7 @@ static int ibm_get_table_from_acpi(char **bufp)
status = acpi_evaluate_object(ibm_acpi_handle, "APCI", NULL, &buffer);
if (ACPI_FAILURE(status)) {
- err("%s: APCI evaluation failed\n", __func__);
+ pr_err("%s: APCI evaluation failed\n", __func__);
return -ENODEV;
}
@@ -309,13 +299,13 @@ static int ibm_get_table_from_acpi(char **bufp)
if (!(package) ||
(package->type != ACPI_TYPE_PACKAGE) ||
!(package->package.elements)) {
- err("%s: Invalid APCI object\n", __func__);
+ pr_err("%s: Invalid APCI object\n", __func__);
goto read_table_done;
}
for(size = 0, i = 0; i < package->package.count; i++) {
if (package->package.elements[i].type != ACPI_TYPE_BUFFER) {
- err("%s: Invalid APCI element %d\n", __func__, i);
+ pr_err("%s: Invalid APCI element %d\n", __func__, i);
goto read_table_done;
}
size += package->package.elements[i].buffer.length;
@@ -325,7 +315,7 @@ static int ibm_get_table_from_acpi(char **bufp)
goto read_table_done;
lbuf = kzalloc(size, GFP_KERNEL);
- dbg("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
+ pr_debug("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
__func__, package->package.count, size, lbuf);
if (lbuf) {
@@ -370,8 +360,8 @@ static ssize_t ibm_read_apci_table(struct file *filp, struct kobject *kobj,
{
int bytes_read = -EINVAL;
char *table = NULL;
-
- dbg("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
+
+ pr_debug("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
if (pos == 0) {
bytes_read = ibm_get_table_from_acpi(&table);
@@ -403,7 +393,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
- err("%s: Failed to get device information status=0x%x\n",
+ pr_err("%s: Failed to get device information status=0x%x\n",
__func__, status);
return retval;
}
@@ -411,7 +401,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
if (info->current_status && (info->valid & ACPI_VALID_HID) &&
(!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
!strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
- dbg("found hardware: %s, handle: %p\n",
+ pr_debug("found hardware: %s, handle: %p\n",
info->hardware_id.string, handle);
*phandle = handle;
/* returning non-zero causes the search to stop
@@ -432,18 +422,18 @@ static int __init ibm_acpiphp_init(void)
struct acpi_device *device;
struct kobject *sysdir = &pci_slots_kset->kobj;
- dbg("%s\n", __func__);
+ pr_debug("%s\n", __func__);
if (acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, ibm_find_acpi_device, NULL,
&ibm_acpi_handle, NULL) != FOUND_APCI) {
- err("%s: acpi_walk_namespace failed\n", __func__);
+ pr_err("%s: acpi_walk_namespace failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
- dbg("%s: found IBM aPCI device\n", __func__);
+ pr_debug("%s: found IBM aPCI device\n", __func__);
if (acpi_bus_get_device(ibm_acpi_handle, &device)) {
- err("%s: acpi_bus_get_device failed\n", __func__);
+ pr_err("%s: acpi_bus_get_device failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
@@ -457,7 +447,7 @@ static int __init ibm_acpiphp_init(void)
ACPI_DEVICE_NOTIFY, ibm_handle_events,
&ibm_note);
if (ACPI_FAILURE(status)) {
- err("%s: Failed to register notification handler\n",
+ pr_err("%s: Failed to register notification handler\n",
__func__);
retval = -EBUSY;
goto init_cleanup;
@@ -479,17 +469,17 @@ static void __exit ibm_acpiphp_exit(void)
acpi_status status;
struct kobject *sysdir = &pci_slots_kset->kobj;
- dbg("%s\n", __func__);
+ pr_debug("%s\n", __func__);
if (acpiphp_unregister_attention(&ibm_attention_info))
- err("%s: attention info deregistration failed", __func__);
+ pr_err("%s: attention info deregistration failed", __func__);
status = acpi_remove_notify_handler(
ibm_acpi_handle,
ACPI_DEVICE_NOTIFY,
ibm_handle_events);
if (ACPI_FAILURE(status))
- err("%s: Notification handler removal failed\n", __func__);
+ pr_err("%s: Notification handler removal failed\n", __func__);
/* remove the /sys entries */
sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr);
}
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index e260f207a90..d876e4b3c6a 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -191,7 +191,7 @@ static inline const char *slot_name(struct slot *slot)
#include <linux/pci-acpi.h>
static inline int get_hp_hw_control_from_firmware(struct pci_dev *dev)
{
- u32 flags = OSC_SHPC_NATIVE_HP_CONTROL;
+ u32 flags = OSC_PCI_SHPC_NATIVE_HP_CONTROL;
return acpi_get_hp_hw_control_from_firmware(dev, flags);
}
#else
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 98f7b9b8950..9f85960a62e 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -135,6 +135,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
return retval;
return count;
}
+static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
/**
* store_remove_id - remove a PCI device ID from this driver
@@ -180,12 +181,14 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
return retval;
return count;
}
+static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
-static struct driver_attribute pci_drv_attrs[] = {
- __ATTR(new_id, S_IWUSR, NULL, store_new_id),
- __ATTR(remove_id, S_IWUSR, NULL, store_remove_id),
- __ATTR_NULL,
+static struct attribute *pci_drv_attrs[] = {
+ &driver_attr_new_id.attr,
+ &driver_attr_remove_id.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(pci_drv);
/**
* pci_match_id - See if a pci device matches a given pci_id table
@@ -1316,9 +1319,9 @@ struct bus_type pci_bus_type = {
.probe = pci_device_probe,
.remove = pci_device_remove,
.shutdown = pci_device_shutdown,
- .dev_attrs = pci_dev_attrs,
- .bus_attrs = pci_bus_attrs,
- .drv_attrs = pci_drv_attrs,
+ .dev_groups = pci_dev_groups,
+ .bus_groups = pci_bus_groups,
+ .drv_groups = pci_drv_groups,
.pm = PCI_PM_OPS_PTR,
};
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 7128cfdd64a..82cc45867ea 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -42,7 +42,8 @@ field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
\
pdev = to_pci_dev (dev); \
return sprintf (buf, format_string, pdev->field); \
-}
+} \
+static DEVICE_ATTR_RO(field)
pci_config_attr(vendor, "0x%04x\n");
pci_config_attr(device, "0x%04x\n");
@@ -73,6 +74,7 @@ static ssize_t broken_parity_status_store(struct device *dev,
return count;
}
+static DEVICE_ATTR_RW(broken_parity_status);
static ssize_t local_cpus_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -91,7 +93,7 @@ static ssize_t local_cpus_show(struct device *dev,
buf[len] = '\0';
return len;
}
-
+static DEVICE_ATTR_RO(local_cpus);
static ssize_t local_cpulist_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -110,6 +112,7 @@ static ssize_t local_cpulist_show(struct device *dev,
buf[len] = '\0';
return len;
}
+static DEVICE_ATTR_RO(local_cpulist);
/*
* PCI Bus Class Devices
@@ -170,6 +173,7 @@ resource_show(struct device * dev, struct device_attribute *attr, char * buf)
}
return (str - buf);
}
+static DEVICE_ATTR_RO(resource);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -181,10 +185,11 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
(u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
(u8)(pci_dev->class));
}
+static DEVICE_ATTR_RO(modalias);
-static ssize_t is_enabled_store(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t count)
+static ssize_t enabled_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
unsigned long val;
@@ -208,14 +213,15 @@ static ssize_t is_enabled_store(struct device *dev,
return result < 0 ? result : count;
}
-static ssize_t is_enabled_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct pci_dev *pdev;
pdev = to_pci_dev (dev);
return sprintf (buf, "%u\n", atomic_read(&pdev->enable_cnt));
}
+static DEVICE_ATTR_RW(enabled);
#ifdef CONFIG_NUMA
static ssize_t
@@ -223,6 +229,7 @@ numa_node_show(struct device *dev, struct device_attribute *attr, char *buf)
{
return sprintf (buf, "%d\n", dev->numa_node);
}
+static DEVICE_ATTR_RO(numa_node);
#endif
static ssize_t
@@ -232,6 +239,7 @@ dma_mask_bits_show(struct device *dev, struct device_attribute *attr, char *buf)
return sprintf (buf, "%d\n", fls64(pdev->dma_mask));
}
+static DEVICE_ATTR_RO(dma_mask_bits);
static ssize_t
consistent_dma_mask_bits_show(struct device *dev, struct device_attribute *attr,
@@ -239,6 +247,7 @@ consistent_dma_mask_bits_show(struct device *dev, struct device_attribute *attr,
{
return sprintf (buf, "%d\n", fls64(dev->coherent_dma_mask));
}
+static DEVICE_ATTR_RO(consistent_dma_mask_bits);
static ssize_t
msi_bus_show(struct device *dev, struct device_attribute *attr, char *buf)
@@ -283,6 +292,7 @@ msi_bus_store(struct device *dev, struct device_attribute *attr,
return count;
}
+static DEVICE_ATTR_RW(msi_bus);
static DEFINE_MUTEX(pci_remove_rescan_mutex);
static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
@@ -302,10 +312,20 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
}
return count;
}
+static BUS_ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store);
+
+static struct attribute *pci_bus_attrs[] = {
+ &bus_attr_rescan.attr,
+ NULL,
+};
-struct bus_attribute pci_bus_attrs[] = {
- __ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store),
- __ATTR_NULL
+static const struct attribute_group pci_bus_group = {
+ .attrs = pci_bus_attrs,
+};
+
+const struct attribute_group *pci_bus_groups[] = {
+ &pci_bus_group,
+ NULL,
};
static ssize_t
@@ -325,8 +345,9 @@ dev_rescan_store(struct device *dev, struct device_attribute *attr,
}
return count;
}
-struct device_attribute dev_rescan_attr = __ATTR(rescan, (S_IWUSR|S_IWGRP),
- NULL, dev_rescan_store);
+static struct device_attribute dev_rescan_attr = __ATTR(rescan,
+ (S_IWUSR|S_IWGRP),
+ NULL, dev_rescan_store);
static void remove_callback(struct device *dev)
{
@@ -356,8 +377,9 @@ remove_store(struct device *dev, struct device_attribute *dummy,
count = ret;
return count;
}
-struct device_attribute dev_remove_attr = __ATTR(remove, (S_IWUSR|S_IWGRP),
- NULL, remove_store);
+static struct device_attribute dev_remove_attr = __ATTR(remove,
+ (S_IWUSR|S_IWGRP),
+ NULL, remove_store);
static ssize_t
dev_bus_rescan_store(struct device *dev, struct device_attribute *attr,
@@ -404,6 +426,7 @@ static ssize_t d3cold_allowed_show(struct device *dev,
struct pci_dev *pdev = to_pci_dev(dev);
return sprintf (buf, "%u\n", pdev->d3cold_allowed);
}
+static DEVICE_ATTR_RW(d3cold_allowed);
#endif
#ifdef CONFIG_PCI_IOV
@@ -489,30 +512,38 @@ static struct device_attribute sriov_numvfs_attr =
sriov_numvfs_show, sriov_numvfs_store);
#endif /* CONFIG_PCI_IOV */
-struct device_attribute pci_dev_attrs[] = {
- __ATTR_RO(resource),
- __ATTR_RO(vendor),
- __ATTR_RO(device),
- __ATTR_RO(subsystem_vendor),
- __ATTR_RO(subsystem_device),
- __ATTR_RO(class),
- __ATTR_RO(irq),
- __ATTR_RO(local_cpus),
- __ATTR_RO(local_cpulist),
- __ATTR_RO(modalias),
+static struct attribute *pci_dev_attrs[] = {
+ &dev_attr_resource.attr,
+ &dev_attr_vendor.attr,
+ &dev_attr_device.attr,
+ &dev_attr_subsystem_vendor.attr,
+ &dev_attr_subsystem_device.attr,
+ &dev_attr_class.attr,
+ &dev_attr_irq.attr,
+ &dev_attr_local_cpus.attr,
+ &dev_attr_local_cpulist.attr,
+ &dev_attr_modalias.attr,
#ifdef CONFIG_NUMA
- __ATTR_RO(numa_node),
+ &dev_attr_numa_node.attr,
#endif
- __ATTR_RO(dma_mask_bits),
- __ATTR_RO(consistent_dma_mask_bits),
- __ATTR(enable, 0600, is_enabled_show, is_enabled_store),
- __ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
- broken_parity_status_show,broken_parity_status_store),
- __ATTR(msi_bus, 0644, msi_bus_show, msi_bus_store),
+ &dev_attr_dma_mask_bits.attr,
+ &dev_attr_consistent_dma_mask_bits.attr,
+ &dev_attr_enabled.attr,
+ &dev_attr_broken_parity_status.attr,
+ &dev_attr_msi_bus.attr,
#if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI)
- __ATTR(d3cold_allowed, 0644, d3cold_allowed_show, d3cold_allowed_store),
+ &dev_attr_d3cold_allowed.attr,
#endif
- __ATTR_NULL,
+ NULL,
+};
+
+static const struct attribute_group pci_dev_group = {
+ .attrs = pci_dev_attrs,
+};
+
+const struct attribute_group *pci_dev_groups[] = {
+ &pci_dev_group,
+ NULL,
};
static struct attribute *pcibus_attrs[] = {
@@ -544,7 +575,7 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf)
!!(pdev->resource[PCI_ROM_RESOURCE].flags &
IORESOURCE_ROM_SHADOW));
}
-struct device_attribute vga_attr = __ATTR_RO(boot_vga);
+static struct device_attribute vga_attr = __ATTR_RO(boot_vga);
static ssize_t
pci_read_config(struct file *filp, struct kobject *kobj,
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e8ccf6c0f08..ad7fc72a40a 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2854,7 +2854,7 @@ void __weak pcibios_set_master(struct pci_dev *dev)
lat = pcibios_max_latency;
else
return;
- dev_printk(KERN_DEBUG, &dev->dev, "setting latency timer to %d\n", lat);
+
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 8a00c063d7b..9c91ecc1301 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -153,10 +153,10 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
return (dev->no_d1d2 || parent_dstates);
}
-extern struct device_attribute pci_dev_attrs[];
+extern const struct attribute_group *pci_dev_groups[];
extern const struct attribute_group *pcibus_groups[];
extern struct device_type pci_dev_type;
-extern struct bus_attribute pci_bus_attrs[];
+extern const struct attribute_group *pci_bus_groups[];
/**
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 7ef0f868b3e..5e14f5a5135 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -641,8 +641,7 @@ static void pci_set_bus_speed(struct pci_bus *bus)
return;
}
- pos = pci_find_capability(bridge, PCI_CAP_ID_EXP);
- if (pos) {
+ if (pci_is_pcie(bridge)) {
u32 linkcap;
u16 linksta;
@@ -984,7 +983,6 @@ void set_pcie_port_type(struct pci_dev *pdev)
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
if (!pos)
return;
- pdev->is_pcie = 1;
pdev->pcie_cap = pos;
pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
pdev->pcie_flags_reg = reg16;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f6c31fabf3a..91490453c22 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2955,6 +2955,29 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
/*
+ * PCI devices which are on Intel chips can skip the 10ms delay
+ * before entering D3 mode.
+ */
+static void quirk_remove_d3_delay(struct pci_dev *dev)
+{
+ dev->d3_delay = 0;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
+
+/*
* Some devices may pass our check in pci_intx_mask_supported if
* PCI_COMMAND_INTX_DISABLE works though they actually do not properly
* support this feature.
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index bc26d7990cc..4ce83b26ae9 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -982,7 +982,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
}
min_align = calculate_mem_align(aligns, max_order);
- min_align = max(min_align, window_alignment(bus, b_res->flags & mask));
+ min_align = max(min_align, window_alignment(bus, b_res->flags));
size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align);
if (children_add_size > add_size)
add_size = children_add_size;
@@ -1136,7 +1136,7 @@ void __ref __pci_bus_size_bridges(struct pci_bus *bus,
}
/* The root bus? */
- if (!bus->self)
+ if (pci_is_root_bus(bus))
return;
switch (bus->self->class >> 8) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-30 12:44:55 +0000