obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
-obj-$(CONFIG_PCI) += pci.o pci_common.o \
+obj-$(CONFIG_PCI) += pci.o pci_common.o psycho_common.o \
pci_psycho.o pci_sabre.o pci_schizo.o \
pci_sun4v.o pci_sun4v_asm.o pci_fire.o
obj-$(CONFIG_PCI_MSI) += pci_msi.o
#include "pci_impl.h"
#include "iommu_common.h"
+#include "psycho_common.h"
#define DRIVER_NAME "psycho"
#define PFX DRIVER_NAME ": "
psycho_register_error_handlers(pbm);
}
-static int psycho_iommu_init(struct pci_pbm_info *pbm)
-{
- struct iommu *iommu = pbm->iommu;
- unsigned long i;
- u64 control;
- int err;
-
- /* Register addresses. */
- iommu->iommu_control = pbm->controller_regs + PSYCHO_IOMMU_CONTROL;
- iommu->iommu_tsbbase = pbm->controller_regs + PSYCHO_IOMMU_TSBBASE;
- iommu->iommu_flush = pbm->controller_regs + PSYCHO_IOMMU_FLUSH;
- iommu->iommu_tags = iommu->iommu_flush + (0xa580UL - 0x0210UL);
-
- /* PSYCHO's IOMMU lacks ctx flushing. */
- iommu->iommu_ctxflush = 0;
-
- /* We use the main control register of PSYCHO as the write
- * completion register.
- */
- iommu->write_complete_reg = pbm->controller_regs + PSYCHO_CONTROL;
-
- /*
- * Invalidate TLB Entries.
- */
- control = psycho_read(pbm->controller_regs + PSYCHO_IOMMU_CONTROL);
- control |= PSYCHO_IOMMU_CTRL_DENAB;
- psycho_write(pbm->controller_regs + PSYCHO_IOMMU_CONTROL, control);
- for (i = 0; i < 16; i++) {
- psycho_write(pbm->controller_regs + PSYCHO_IOMMU_TAG + (i * 8UL), 0);
- psycho_write(pbm->controller_regs + PSYCHO_IOMMU_DATA + (i * 8UL), 0);
- }
-
- /* Leave diag mode enabled for full-flushing done
- * in pci_iommu.c
- */
- err = iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff,
- pbm->numa_node);
- if (err) {
- printk(KERN_ERR PFX "iommu_table_init() fails\n");
- return err;
- }
-
- psycho_write(pbm->controller_regs + PSYCHO_IOMMU_TSBBASE,
- __pa(iommu->page_table));
-
- control = psycho_read(pbm->controller_regs + PSYCHO_IOMMU_CONTROL);
- control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
- control |= (PSYCHO_IOMMU_TSBSZ_128K | PSYCHO_IOMMU_CTRL_ENAB);
- psycho_write(pbm->controller_regs + PSYCHO_IOMMU_CONTROL, control);
-
- /* If necessary, hook us up for starfire IRQ translations. */
- if (this_is_starfire)
- starfire_hookup(pbm->portid);
-
- return 0;
-}
-
#define PSYCHO_IRQ_RETRY 0x1a00UL
#define PSYCHO_PCIA_DIAG 0x2020UL
#define PSYCHO_PCIB_DIAG 0x4020UL
psycho_controller_hwinit(pbm);
if (!pbm->sibling) {
- err = psycho_iommu_init(pbm);
+ err = psycho_iommu_init(pbm, 128, 0xc0000000,
+ 0xffffffff, PSYCHO_CONTROL);
if (err)
goto out_free_iommu;
+
+ /* If necessary, hook us up for starfire IRQ translations. */
+ if (this_is_starfire)
+ starfire_hookup(pbm->portid);
}
psycho_pbm_init(pbm, op, is_pbm_a);
#include "pci_impl.h"
#include "iommu_common.h"
+#include "psycho_common.h"
#define DRIVER_NAME "sabre"
#define PFX DRIVER_NAME ": "
sabre_register_error_handlers(pbm);
}
-static int sabre_iommu_init(struct pci_pbm_info *pbm,
- int tsbsize, unsigned long dvma_offset,
- u32 dma_mask)
-{
- struct iommu *iommu = pbm->iommu;
- unsigned long i;
- u64 control;
- int err;
-
- /* Register addresses. */
- iommu->iommu_control = pbm->controller_regs + SABRE_IOMMU_CONTROL;
- iommu->iommu_tsbbase = pbm->controller_regs + SABRE_IOMMU_TSBBASE;
- iommu->iommu_flush = pbm->controller_regs + SABRE_IOMMU_FLUSH;
- iommu->iommu_tags = iommu->iommu_flush + (0xa580UL - 0x0210UL);
- iommu->write_complete_reg = pbm->controller_regs + SABRE_WRSYNC;
- /* Sabre's IOMMU lacks ctx flushing. */
- iommu->iommu_ctxflush = 0;
-
- /* Invalidate TLB Entries. */
- control = sabre_read(pbm->controller_regs + SABRE_IOMMU_CONTROL);
- control |= SABRE_IOMMUCTRL_DENAB;
- sabre_write(pbm->controller_regs + SABRE_IOMMU_CONTROL, control);
-
- for(i = 0; i < 16; i++) {
- sabre_write(pbm->controller_regs + SABRE_IOMMU_TAG + (i * 8UL), 0);
- sabre_write(pbm->controller_regs + SABRE_IOMMU_DATA + (i * 8UL), 0);
- }
-
- /* Leave diag mode enabled for full-flushing done
- * in pci_iommu.c
- */
- err = iommu_table_init(iommu, tsbsize * 1024 * 8,
- dvma_offset, dma_mask, pbm->numa_node);
- if (err) {
- printk(KERN_ERR PFX "iommu_table_init() failed\n");
- return err;
- }
-
- sabre_write(pbm->controller_regs + SABRE_IOMMU_TSBBASE,
- __pa(iommu->page_table));
-
- control = sabre_read(pbm->controller_regs + SABRE_IOMMU_CONTROL);
- control &= ~(SABRE_IOMMUCTRL_TSBSZ | SABRE_IOMMUCTRL_TBWSZ);
- control |= SABRE_IOMMUCTRL_ENAB;
- switch(tsbsize) {
- case 64:
- control |= SABRE_IOMMU_TSBSZ_64K;
- break;
- case 128:
- control |= SABRE_IOMMU_TSBSZ_128K;
- break;
- default:
- printk(KERN_ERR PFX "Illegal TSB size %d\n", tsbsize);
- return -EINVAL;
- }
- sabre_write(pbm->controller_regs + SABRE_IOMMU_CONTROL, control);
-
- return 0;
-}
-
static void __init sabre_pbm_init(struct pci_pbm_info *pbm,
struct of_device *op)
{
goto out_free_iommu;
}
- err = sabre_iommu_init(pbm, tsbsize, vdma[0], dma_mask);
+ err = psycho_iommu_init(pbm, tsbsize, vdma[0], dma_mask, SABRE_WRSYNC);
if (err)
goto out_free_iommu;
--- /dev/null
+/* psycho_common.c: Code common to PSYCHO and derivative PCI controllers.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/kernel.h>
+
+#include <asm/upa.h>
+
+#include "pci_impl.h"
+#include "psycho_common.h"
+
+#define PSYCHO_IOMMU_TAG 0xa580UL
+#define PSYCHO_IOMMU_DATA 0xa600UL
+
+static void psycho_iommu_flush(struct pci_pbm_info *pbm)
+{
+ int i;
+
+ for (i = 0; i < 16; i++) {
+ unsigned long off = i * 8;
+
+ upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_TAG + off);
+ upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_DATA + off);
+ }
+}
+
+#define PSYCHO_IOMMU_CONTROL 0x0200UL
+#define PSYCHO_IOMMU_CTRL_TSBSZ 0x0000000000070000UL
+#define PSYCHO_IOMMU_TSBSZ_1K 0x0000000000000000UL
+#define PSYCHO_IOMMU_TSBSZ_2K 0x0000000000010000UL
+#define PSYCHO_IOMMU_TSBSZ_4K 0x0000000000020000UL
+#define PSYCHO_IOMMU_TSBSZ_8K 0x0000000000030000UL
+#define PSYCHO_IOMMU_TSBSZ_16K 0x0000000000040000UL
+#define PSYCHO_IOMMU_TSBSZ_32K 0x0000000000050000UL
+#define PSYCHO_IOMMU_TSBSZ_64K 0x0000000000060000UL
+#define PSYCHO_IOMMU_TSBSZ_128K 0x0000000000070000UL
+#define PSYCHO_IOMMU_CTRL_TBWSZ 0x0000000000000004UL
+#define PSYCHO_IOMMU_CTRL_DENAB 0x0000000000000002UL
+#define PSYCHO_IOMMU_CTRL_ENAB 0x0000000000000001UL
+#define PSYCHO_IOMMU_FLUSH 0x0210UL
+#define PSYCHO_IOMMU_TSBBASE 0x0208UL
+
+int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
+ u32 dvma_offset, u32 dma_mask,
+ unsigned long write_complete_offset)
+{
+ struct iommu *iommu = pbm->iommu;
+ u64 control;
+ int err;
+
+ iommu->iommu_control = pbm->controller_regs + PSYCHO_IOMMU_CONTROL;
+ iommu->iommu_tsbbase = pbm->controller_regs + PSYCHO_IOMMU_TSBBASE;
+ iommu->iommu_flush = pbm->controller_regs + PSYCHO_IOMMU_FLUSH;
+ iommu->iommu_tags = pbm->controller_regs + PSYCHO_IOMMU_TAG;
+ iommu->write_complete_reg = (pbm->controller_regs +
+ write_complete_offset);
+
+ iommu->iommu_ctxflush = 0;
+
+ control = upa_readq(iommu->iommu_control);
+ control |= PSYCHO_IOMMU_CTRL_DENAB;
+ upa_writeq(control, iommu->iommu_control);
+
+ psycho_iommu_flush(pbm);
+
+ /* Leave diag mode enabled for full-flushing done in pci_iommu.c */
+ err = iommu_table_init(iommu, tsbsize * 1024 * 8,
+ dvma_offset, dma_mask, pbm->numa_node);
+ if (err)
+ return err;
+
+ upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase);
+
+ control = upa_readq(iommu->iommu_control);
+ control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
+ control |= PSYCHO_IOMMU_CTRL_ENAB;
+
+ switch (tsbsize) {
+ case 64:
+ control |= PSYCHO_IOMMU_TSBSZ_64K;
+ break;
+ case 128:
+ control |= PSYCHO_IOMMU_TSBSZ_128K;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ upa_writeq(control, iommu->iommu_control);
+
+ return 0;
+
+}
--- /dev/null
+#ifndef _PSYCHO_COMMON_H
+#define _PSYCHO_COMMON_H
+
+extern int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
+ u32 dvma_offset, u32 dma_mask,
+ unsigned long write_complete_offset);
+
+#endif /* _PSYCHO_COMMON_H */
projects / platform / kernel / linux-starfive.git / commitdiff