Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (46 commits)
  ftrace/MIPS: Enable C Version of recordmcount
  ftrace/MIPS: Add module support for C version of recordmcount
  ftrace/MIPS: Add MIPS64 support for C version of recordmcount
  MIPS: Make TASK_SIZE reflect proper size for both 32 and 64 bit processes.
  MIPS: Allow UserLocal on MIPS_R1 processors
  MIPS: Honor L2 bypass bit
  MIPS: Add BMIPS CP0 register definitions
  MIPS: Add BMIPS processor types to Kconfig
  MIPS: Decouple BMIPS CPU support from bcm47xx/bcm63xx SoC code
  MIPS: Add support for hardware performance events (mipsxx)
  MIPS: Perf-events: Add callchain support
  MIPS: add support for hardware performance events (skeleton)
  MIPS: add support for software performance events
  MIPS: define local_xchg from xchg_local to atomic_long_xchg
  MIPS: AR7: Add support for Titan (TNETV10xx) SoC variant
  MIPS: AR7: Initialize GPIO earlier
  MIPS: Add platform device and Kconfig for Octeon USB EHCI / OHCI
  USB: Add EHCI and OHCH glue for OCTEON II SOCs.
  MIPS: Octeon: Add register definitions for EHCI / OHCI USB glue logic.
  MIPS: Octeon: Apply CN63XXP1 errata workarounds.
  ...

1 files changed, 54 insertions, 6 deletions

diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index d248b707eff3..2d74fc9ae3ba 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -11,6 +11,7 @@
 #include <linux/interrupt.h>
 #include <linux/time.h>
 #include <linux/delay.h>
+#include <linux/swiotlb.h>
 
 #include <asm/time.h>
 
@@ -19,6 +20,8 @@
 #include <asm/octeon/cvmx-pci-defs.h>
 #include <asm/octeon/pci-octeon.h>
 
+#include <dma-coherence.h>
+
 #define USE_OCTEON_INTERNAL_ARBITER
 
 /*
@@ -32,6 +35,8 @@
 /* Octeon't PCI controller uses did=3, subdid=3 for PCI memory. */
 #define OCTEON_PCI_MEMSPACE_OFFSET  (0x00011b0000000000ull)
 
+u64 octeon_bar1_pci_phys;
+
 /**
  * This is the bit decoding used for the Octeon PCI controller addresses
  */
@@ -170,6 +175,8 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 		pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
 	}
 
+	dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops;
+
 	return 0;
 }
 
@@ -618,12 +625,10 @@ static int __init octeon_pci_setup(void)
 	 * before the readl()'s below. We don't want BAR2 overlapping
 	 * with BAR0/BAR1 during these reads.
 	 */
-	octeon_npi_write32(CVMX_NPI_PCI_CFG08, 0);
-	octeon_npi_write32(CVMX_NPI_PCI_CFG09, 0x80);
-
-	/* Disable the BAR1 movable mappings */
-	for (index = 0; index < 32; index++)
-		octeon_npi_write32(CVMX_NPI_PCI_BAR1_INDEXX(index), 0);
+	octeon_npi_write32(CVMX_NPI_PCI_CFG08,
+			   (u32)(OCTEON_BAR2_PCI_ADDRESS & 0xffffffffull));
+	octeon_npi_write32(CVMX_NPI_PCI_CFG09,
+			   (u32)(OCTEON_BAR2_PCI_ADDRESS >> 32));
 
 	if (octeon_dma_bar_type == OCTEON_DMA_BAR_TYPE_BIG) {
 		/* Remap the Octeon BAR 0 to 0-2GB */
@@ -637,6 +642,25 @@ static int __init octeon_pci_setup(void)
 		octeon_npi_write32(CVMX_NPI_PCI_CFG06, 2ul << 30);
 		octeon_npi_write32(CVMX_NPI_PCI_CFG07, 0);
 
+		/* BAR1 movable mappings set for identity mapping */
+		octeon_bar1_pci_phys = 0x80000000ull;
+		for (index = 0; index < 32; index++) {
+			union cvmx_pci_bar1_indexx bar1_index;
+
+			bar1_index.u32 = 0;
+			/* Address bits[35:22] sent to L2C */
+			bar1_index.s.addr_idx =
+				(octeon_bar1_pci_phys >> 22) + index;
+			/* Don't put PCI accesses in L2. */
+			bar1_index.s.ca = 1;
+			/* Endian Swap Mode */
+			bar1_index.s.end_swp = 1;
+			/* Set '1' when the selected address range is valid. */
+			bar1_index.s.addr_v = 1;
+			octeon_npi_write32(CVMX_NPI_PCI_BAR1_INDEXX(index),
+					   bar1_index.u32);
+		}
+
 		/* Devices go after BAR1 */
 		octeon_pci_mem_resource.start =
 			OCTEON_PCI_MEMSPACE_OFFSET + (4ul << 30) -
@@ -652,6 +676,27 @@ static int __init octeon_pci_setup(void)
 		octeon_npi_write32(CVMX_NPI_PCI_CFG06, 0);
 		octeon_npi_write32(CVMX_NPI_PCI_CFG07, 0);
 
+		/* BAR1 movable regions contiguous to cover the swiotlb */
+		octeon_bar1_pci_phys =
+			virt_to_phys(octeon_swiotlb) & ~((1ull << 22) - 1);
+
+		for (index = 0; index < 32; index++) {
+			union cvmx_pci_bar1_indexx bar1_index;
+
+			bar1_index.u32 = 0;
+			/* Address bits[35:22] sent to L2C */
+			bar1_index.s.addr_idx =
+				(octeon_bar1_pci_phys >> 22) + index;
+			/* Don't put PCI accesses in L2. */
+			bar1_index.s.ca = 1;
+			/* Endian Swap Mode */
+			bar1_index.s.end_swp = 1;
+			/* Set '1' when the selected address range is valid. */
+			bar1_index.s.addr_v = 1;
+			octeon_npi_write32(CVMX_NPI_PCI_BAR1_INDEXX(index),
+					   bar1_index.u32);
+		}
+
 		/* Devices go after BAR0 */
 		octeon_pci_mem_resource.start =
 			OCTEON_PCI_MEMSPACE_OFFSET + (128ul << 20) +
@@ -667,6 +712,9 @@ static int __init octeon_pci_setup(void)
 	 * was setup properly.
 	 */
 	cvmx_write_csr(CVMX_NPI_PCI_INT_SUM2, -1);
+
+	octeon_pci_dma_init();
+
 	return 0;
 }