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-rw-r--r--arch/powerpc/sysdev/dart_iommu.c10
-rw-r--r--arch/powerpc/sysdev/dcr.c2
-rw-r--r--arch/powerpc/sysdev/fsl_msi.c29
-rw-r--r--arch/powerpc/sysdev/fsl_msi.h2
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c15
-rw-r--r--arch/powerpc/sysdev/mpic.c30
-rw-r--r--arch/powerpc/sysdev/qe_lib/qe_io.c25
-rw-r--r--arch/powerpc/sysdev/qe_lib/ucc_slow.c5
-rw-r--r--arch/powerpc/sysdev/xics/xics-common.c4
9 files changed, 51 insertions, 71 deletions
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 9e5353ff6d1b..d00a5663e312 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -369,7 +369,7 @@ static int dart_dma_set_mask(struct device *dev, u64 dma_mask)
return 0;
}
-void __init iommu_init_early_dart(void)
+void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
{
struct device_node *dn;
@@ -395,8 +395,8 @@ void __init iommu_init_early_dart(void)
if (dart_is_u4)
ppc_md.dma_set_mask = dart_dma_set_mask;
- ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_dart;
- ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_dart;
+ controller_ops->dma_dev_setup = pci_dma_dev_setup_dart;
+ controller_ops->dma_bus_setup = pci_dma_bus_setup_dart;
/* Setup pci_dma ops */
set_pci_dma_ops(&dma_iommu_ops);
@@ -404,8 +404,8 @@ void __init iommu_init_early_dart(void)
bail:
/* If init failed, use direct iommu and null setup functions */
- ppc_md.pci_dma_dev_setup = NULL;
- ppc_md.pci_dma_bus_setup = NULL;
+ controller_ops->dma_dev_setup = NULL;
+ controller_ops->dma_bus_setup = NULL;
/* Setup pci_dma ops */
set_pci_dma_ops(&dma_direct_ops);
diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c
index 2d8a101b6b9e..121e26fffd50 100644
--- a/arch/powerpc/sysdev/dcr.c
+++ b/arch/powerpc/sysdev/dcr.c
@@ -54,7 +54,7 @@ bool dcr_map_ok_generic(dcr_host_t host)
else if (host.type == DCR_HOST_MMIO)
return dcr_map_ok_mmio(host.host.mmio);
else
- return 0;
+ return false;
}
EXPORT_SYMBOL_GPL(dcr_map_ok_generic);
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 4bbb4b8dfd09..f086c6f22dc9 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -162,7 +162,17 @@ static void fsl_compose_msi_msg(struct pci_dev *pdev, int hwirq,
msg->address_lo = lower_32_bits(address);
msg->address_hi = upper_32_bits(address);
- msg->data = hwirq;
+ /*
+ * MPIC version 2.0 has erratum PIC1. It causes
+ * that neither MSI nor MSI-X can work fine.
+ * This is a workaround to allow MSI-X to function
+ * properly. It only works for MSI-X, we prevent
+ * MSI on buggy chips in fsl_setup_msi_irqs().
+ */
+ if (msi_data->feature & MSI_HW_ERRATA_ENDIAN)
+ msg->data = __swab32(hwirq);
+ else
+ msg->data = hwirq;
pr_debug("%s: allocated srs: %d, ibs: %d\n", __func__,
(hwirq >> msi_data->srs_shift) & MSI_SRS_MASK,
@@ -180,8 +190,16 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
struct msi_msg msg;
struct fsl_msi *msi_data;
- if (type == PCI_CAP_ID_MSIX)
- pr_debug("fslmsi: MSI-X untested, trying anyway.\n");
+ if (type == PCI_CAP_ID_MSI) {
+ /*
+ * MPIC version 2.0 has erratum PIC1. For now MSI
+ * could not work. So check to prevent MSI from
+ * being used on the board with this erratum.
+ */
+ list_for_each_entry(msi_data, &msi_head, list)
+ if (msi_data->feature & MSI_HW_ERRATA_ENDIAN)
+ return -EINVAL;
+ }
/*
* If the PCI node has an fsl,msi property, then we need to use it
@@ -446,6 +464,11 @@ static int fsl_of_msi_probe(struct platform_device *dev)
msi->feature = features->fsl_pic_ip;
+ /* For erratum PIC1 on MPIC version 2.0*/
+ if ((features->fsl_pic_ip & FSL_PIC_IP_MASK) == FSL_PIC_IP_MPIC
+ && (fsl_mpic_primary_get_version() == 0x0200))
+ msi->feature |= MSI_HW_ERRATA_ENDIAN;
+
/*
* Remember the phandle, so that we can match with any PCI nodes
* that have an "fsl,msi" property.
diff --git a/arch/powerpc/sysdev/fsl_msi.h b/arch/powerpc/sysdev/fsl_msi.h
index 420cfcbdac01..a67359d993e5 100644
--- a/arch/powerpc/sysdev/fsl_msi.h
+++ b/arch/powerpc/sysdev/fsl_msi.h
@@ -27,6 +27,8 @@
#define FSL_PIC_IP_IPIC 0x00000002
#define FSL_PIC_IP_VMPIC 0x00000003
+#define MSI_HW_ERRATA_ENDIAN 0x00000010
+
struct fsl_msi_cascade_data;
struct fsl_msi {
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 4b74c276e427..9a8fcf0d79d7 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -111,6 +111,18 @@ static struct pci_ops fsl_indirect_pcie_ops =
#define MAX_PHYS_ADDR_BITS 40
static u64 pci64_dma_offset = 1ull << MAX_PHYS_ADDR_BITS;
+#ifdef CONFIG_SWIOTLB
+static void setup_swiotlb_ops(struct pci_controller *hose)
+{
+ if (ppc_swiotlb_enable) {
+ hose->controller_ops.dma_dev_setup = pci_dma_dev_setup_swiotlb;
+ set_pci_dma_ops(&swiotlb_dma_ops);
+ }
+}
+#else
+static inline void setup_swiotlb_ops(struct pci_controller *hose) {}
+#endif
+
static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
{
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
@@ -548,6 +560,9 @@ int fsl_add_bridge(struct platform_device *pdev, int is_primary)
/* Setup PEX window registers */
setup_pci_atmu(hose);
+ /* Set up controller operations */
+ setup_swiotlb_ops(hose);
+
return 0;
no_bridge:
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index bbfbbf2025fd..b2b8447a227a 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -655,7 +655,6 @@ static inline struct mpic * mpic_from_irq_data(struct irq_data *d)
static inline void mpic_eoi(struct mpic *mpic)
{
mpic_cpu_write(MPIC_INFO(CPU_EOI), 0);
- (void)mpic_cpu_read(MPIC_INFO(CPU_WHOAMI));
}
/*
@@ -1676,31 +1675,6 @@ void __init mpic_init(struct mpic *mpic)
mpic_err_int_init(mpic, MPIC_FSL_ERR_INT);
}
-void __init mpic_set_clk_ratio(struct mpic *mpic, u32 clock_ratio)
-{
- u32 v;
-
- v = mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1);
- v &= ~MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO_MASK;
- v |= MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO(clock_ratio);
- mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1, v);
-}
-
-void __init mpic_set_serial_int(struct mpic *mpic, int enable)
-{
- unsigned long flags;
- u32 v;
-
- raw_spin_lock_irqsave(&mpic_lock, flags);
- v = mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1);
- if (enable)
- v |= MPIC_GREG_GLOBAL_CONF_1_SIE;
- else
- v &= ~MPIC_GREG_GLOBAL_CONF_1_SIE;
- mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1, v);
- raw_spin_unlock_irqrestore(&mpic_lock, flags);
-}
-
void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
{
struct mpic *mpic = mpic_find(irq);
@@ -1923,7 +1897,7 @@ void smp_mpic_message_pass(int cpu, int msg)
msg * MPIC_INFO(CPU_IPI_DISPATCH_STRIDE), physmask);
}
-int __init smp_mpic_probe(void)
+void __init smp_mpic_probe(void)
{
int nr_cpus;
@@ -1935,8 +1909,6 @@ int __init smp_mpic_probe(void)
if (nr_cpus > 1)
mpic_request_ipis();
-
- return nr_cpus;
}
void smp_mpic_setup_cpu(int cpu)
diff --git a/arch/powerpc/sysdev/qe_lib/qe_io.c b/arch/powerpc/sysdev/qe_lib/qe_io.c
index d09994164daf..7ea0174f6d3d 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_io.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_io.c
@@ -190,28 +190,3 @@ int par_io_of_config(struct device_node *np)
return 0;
}
EXPORT_SYMBOL(par_io_of_config);
-
-#ifdef DEBUG
-static void dump_par_io(void)
-{
- unsigned int i;
-
- printk(KERN_INFO "%s: par_io=%p\n", __func__, par_io);
- for (i = 0; i < num_par_io_ports; i++) {
- printk(KERN_INFO " cpodr[%u]=%08x\n", i,
- in_be32(&par_io[i].cpodr));
- printk(KERN_INFO " cpdata[%u]=%08x\n", i,
- in_be32(&par_io[i].cpdata));
- printk(KERN_INFO " cpdir1[%u]=%08x\n", i,
- in_be32(&par_io[i].cpdir1));
- printk(KERN_INFO " cpdir2[%u]=%08x\n", i,
- in_be32(&par_io[i].cpdir2));
- printk(KERN_INFO " cppar1[%u]=%08x\n", i,
- in_be32(&par_io[i].cppar1));
- printk(KERN_INFO " cppar2[%u]=%08x\n", i,
- in_be32(&par_io[i].cppar2));
- }
-
-}
-EXPORT_SYMBOL(dump_par_io);
-#endif /* DEBUG */
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
index befaf1123f7f..5f91628209eb 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
@@ -43,11 +43,6 @@ u32 ucc_slow_get_qe_cr_subblock(int uccs_num)
}
EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock);
-void ucc_slow_poll_transmitter_now(struct ucc_slow_private * uccs)
-{
- out_be16(&uccs->us_regs->utodr, UCC_SLOW_TOD);
-}
-
void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs)
{
struct ucc_slow_info *us_info = uccs->us_info;
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index 125743b58c70..878a54036a25 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -140,15 +140,13 @@ static void xics_request_ipi(void)
IRQF_PERCPU | IRQF_NO_THREAD, "IPI", NULL));
}
-int __init xics_smp_probe(void)
+void __init xics_smp_probe(void)
{
/* Setup cause_ipi callback based on which ICP is used */
smp_ops->cause_ipi = icp_ops->cause_ipi;
/* Register all the IPIs */
xics_request_ipi();
-
- return num_possible_cpus();
}
#endif /* CONFIG_SMP */
generated by cgit v1.2.1 (git 2.18.0) at 2024-09-18 08:59:03 +0000