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-rw-r--r--hw/spapr_iommu.c293
1 files changed, 0 insertions, 293 deletions
diff --git a/hw/spapr_iommu.c b/hw/spapr_iommu.c
deleted file mode 100644
index 8d500bf6be..0000000000
--- a/hw/spapr_iommu.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * QEMU sPAPR IOMMU (TCE) code
- *
- * Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "hw/hw.h"
-#include "sysemu/kvm.h"
-#include "hw/qdev.h"
-#include "kvm_ppc.h"
-#include "sysemu/dma.h"
-#include "exec/address-spaces.h"
-
-#include "hw/spapr.h"
-
-#include <libfdt.h>
-
-/* #define DEBUG_TCE */
-
-enum sPAPRTCEAccess {
- SPAPR_TCE_FAULT = 0,
- SPAPR_TCE_RO = 1,
- SPAPR_TCE_WO = 2,
- SPAPR_TCE_RW = 3,
-};
-
-typedef struct sPAPRTCETable sPAPRTCETable;
-
-struct sPAPRTCETable {
- DMAContext dma;
- uint32_t liobn;
- uint32_t window_size;
- sPAPRTCE *table;
- bool bypass;
- int fd;
- QLIST_ENTRY(sPAPRTCETable) list;
-};
-
-
-QLIST_HEAD(spapr_tce_tables, sPAPRTCETable) spapr_tce_tables;
-
-static sPAPRTCETable *spapr_tce_find_by_liobn(uint32_t liobn)
-{
- sPAPRTCETable *tcet;
-
- QLIST_FOREACH(tcet, &spapr_tce_tables, list) {
- if (tcet->liobn == liobn) {
- return tcet;
- }
- }
-
- return NULL;
-}
-
-static int spapr_tce_translate(DMAContext *dma,
- dma_addr_t addr,
- hwaddr *paddr,
- hwaddr *len,
- DMADirection dir)
-{
- sPAPRTCETable *tcet = DO_UPCAST(sPAPRTCETable, dma, dma);
- enum sPAPRTCEAccess access = (dir == DMA_DIRECTION_FROM_DEVICE)
- ? SPAPR_TCE_WO : SPAPR_TCE_RO;
- uint64_t tce;
-
-#ifdef DEBUG_TCE
- fprintf(stderr, "spapr_tce_translate liobn=0x%" PRIx32 " addr=0x"
- DMA_ADDR_FMT "\n", tcet->liobn, addr);
-#endif
-
- if (tcet->bypass) {
- *paddr = addr;
- *len = (hwaddr)-1;
- return 0;
- }
-
- /* Check if we are in bound */
- if (addr >= tcet->window_size) {
-#ifdef DEBUG_TCE
- fprintf(stderr, "spapr_tce_translate out of bounds\n");
-#endif
- return -EFAULT;
- }
-
- tce = tcet->table[addr >> SPAPR_TCE_PAGE_SHIFT].tce;
-
- /* Check TCE */
- if (!(tce & access)) {
- return -EPERM;
- }
-
- /* How much til end of page ? */
- *len = ((~addr) & SPAPR_TCE_PAGE_MASK) + 1;
-
- /* Translate */
- *paddr = (tce & ~SPAPR_TCE_PAGE_MASK) |
- (addr & SPAPR_TCE_PAGE_MASK);
-
-#ifdef DEBUG_TCE
- fprintf(stderr, " -> *paddr=0x" TARGET_FMT_plx ", *len=0x"
- TARGET_FMT_plx "\n", *paddr, *len);
-#endif
-
- return 0;
-}
-
-DMAContext *spapr_tce_new_dma_context(uint32_t liobn, size_t window_size)
-{
- sPAPRTCETable *tcet;
-
- if (spapr_tce_find_by_liobn(liobn)) {
- fprintf(stderr, "Attempted to create TCE table with duplicate"
- " LIOBN 0x%x\n", liobn);
- return NULL;
- }
-
- if (!window_size) {
- return NULL;
- }
-
- tcet = g_malloc0(sizeof(*tcet));
- dma_context_init(&tcet->dma, &address_space_memory, spapr_tce_translate, NULL, NULL);
-
- tcet->liobn = liobn;
- tcet->window_size = window_size;
-
- if (kvm_enabled()) {
- tcet->table = kvmppc_create_spapr_tce(liobn,
- window_size,
- &tcet->fd);
- }
-
- if (!tcet->table) {
- size_t table_size = (window_size >> SPAPR_TCE_PAGE_SHIFT)
- * sizeof(sPAPRTCE);
- tcet->table = g_malloc0(table_size);
- }
-
-#ifdef DEBUG_TCE
- fprintf(stderr, "spapr_iommu: New TCE table, liobn=0x%x, context @ %p, "
- "table @ %p, fd=%d\n", liobn, &tcet->dma, tcet->table, tcet->fd);
-#endif
-
- QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list);
-
- return &tcet->dma;
-}
-
-void spapr_tce_free(DMAContext *dma)
-{
-
- if (dma) {
- sPAPRTCETable *tcet = DO_UPCAST(sPAPRTCETable, dma, dma);
-
- QLIST_REMOVE(tcet, list);
-
- if (!kvm_enabled() ||
- (kvmppc_remove_spapr_tce(tcet->table, tcet->fd,
- tcet->window_size) != 0)) {
- g_free(tcet->table);
- }
-
- g_free(tcet);
- }
-}
-
-void spapr_tce_set_bypass(DMAContext *dma, bool bypass)
-{
- sPAPRTCETable *tcet = DO_UPCAST(sPAPRTCETable, dma, dma);
-
- tcet->bypass = bypass;
-}
-
-void spapr_tce_reset(DMAContext *dma)
-{
- sPAPRTCETable *tcet = DO_UPCAST(sPAPRTCETable, dma, dma);
- size_t table_size = (tcet->window_size >> SPAPR_TCE_PAGE_SHIFT)
- * sizeof(sPAPRTCE);
-
- tcet->bypass = false;
- memset(tcet->table, 0, table_size);
-}
-
-static target_ulong put_tce_emu(sPAPRTCETable *tcet, target_ulong ioba,
- target_ulong tce)
-{
- sPAPRTCE *tcep;
-
- if (ioba >= tcet->window_size) {
- hcall_dprintf("spapr_vio_put_tce on out-of-boards IOBA 0x"
- TARGET_FMT_lx "\n", ioba);
- return H_PARAMETER;
- }
-
- tcep = tcet->table + (ioba >> SPAPR_TCE_PAGE_SHIFT);
- tcep->tce = tce;
-
- return H_SUCCESS;
-}
-
-static target_ulong h_put_tce(PowerPCCPU *cpu, sPAPREnvironment *spapr,
- target_ulong opcode, target_ulong *args)
-{
- target_ulong liobn = args[0];
- target_ulong ioba = args[1];
- target_ulong tce = args[2];
- sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
-
- if (liobn & 0xFFFFFFFF00000000ULL) {
- hcall_dprintf("spapr_vio_put_tce on out-of-boundsw LIOBN "
- TARGET_FMT_lx "\n", liobn);
- return H_PARAMETER;
- }
-
- ioba &= ~(SPAPR_TCE_PAGE_SIZE - 1);
-
- if (tcet) {
- return put_tce_emu(tcet, ioba, tce);
- }
-#ifdef DEBUG_TCE
- fprintf(stderr, "%s on liobn=" TARGET_FMT_lx /*%s*/
- " ioba 0x" TARGET_FMT_lx " TCE 0x" TARGET_FMT_lx "\n",
- __func__, liobn, /*dev->qdev.id, */ioba, tce);
-#endif
-
- return H_PARAMETER;
-}
-
-void spapr_iommu_init(void)
-{
- QLIST_INIT(&spapr_tce_tables);
-
- /* hcall-tce */
- spapr_register_hypercall(H_PUT_TCE, h_put_tce);
-}
-
-int spapr_dma_dt(void *fdt, int node_off, const char *propname,
- uint32_t liobn, uint64_t window, uint32_t size)
-{
- uint32_t dma_prop[5];
- int ret;
-
- dma_prop[0] = cpu_to_be32(liobn);
- dma_prop[1] = cpu_to_be32(window >> 32);
- dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF);
- dma_prop[3] = 0; /* window size is 32 bits */
- dma_prop[4] = cpu_to_be32(size);
-
- ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2);
- if (ret < 0) {
- return ret;
- }
-
- ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2);
- if (ret < 0) {
- return ret;
- }
-
- ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop));
- if (ret < 0) {
- return ret;
- }
-
- return 0;
-}
-
-int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
- DMAContext *iommu)
-{
- if (!iommu) {
- return 0;
- }
-
- if (iommu->translate == spapr_tce_translate) {
- sPAPRTCETable *tcet = DO_UPCAST(sPAPRTCETable, dma, iommu);
- return spapr_dma_dt(fdt, node_off, propname,
- tcet->liobn, 0, tcet->window_size);
- }
-
- return -1;
-}
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