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-rw-r--r--dma-helpers.c25
-rw-r--r--dma.h17
-rw-r--r--hw/spapr_iommu.c3
3 files changed, 22 insertions, 23 deletions
diff --git a/dma-helpers.c b/dma-helpers.c
index 433d8b21b3..3f09dcb072 100644
--- a/dma-helpers.c
+++ b/dma-helpers.c
@@ -14,7 +14,8 @@
/* #define DEBUG_IOMMU */
-static void do_dma_memory_set(dma_addr_t addr, uint8_t c, dma_addr_t len)
+static void do_dma_memory_set(AddressSpace *as,
+ dma_addr_t addr, uint8_t c, dma_addr_t len)
{
#define FILLBUF_SIZE 512
uint8_t fillbuf[FILLBUF_SIZE];
@@ -23,7 +24,7 @@ static void do_dma_memory_set(dma_addr_t addr, uint8_t c, dma_addr_t len)
memset(fillbuf, c, FILLBUF_SIZE);
while (len > 0) {
l = len < FILLBUF_SIZE ? len : FILLBUF_SIZE;
- cpu_physical_memory_rw(addr, fillbuf, l, true);
+ address_space_rw(as, addr, fillbuf, l, true);
len -= l;
addr += l;
}
@@ -36,7 +37,7 @@ int dma_memory_set(DMAContext *dma, dma_addr_t addr, uint8_t c, dma_addr_t len)
if (dma_has_iommu(dma)) {
return iommu_dma_memory_set(dma, addr, c, len);
}
- do_dma_memory_set(addr, c, len);
+ do_dma_memory_set(dma->as, addr, c, len);
return 0;
}
@@ -332,8 +333,7 @@ int iommu_dma_memory_rw(DMAContext *dma, dma_addr_t addr,
plen = len;
}
- cpu_physical_memory_rw(paddr, buf, plen,
- dir == DMA_DIRECTION_FROM_DEVICE);
+ address_space_rw(dma->as, paddr, buf, plen, dir == DMA_DIRECTION_FROM_DEVICE);
len -= plen;
addr += plen;
@@ -366,7 +366,7 @@ int iommu_dma_memory_set(DMAContext *dma, dma_addr_t addr, uint8_t c,
plen = len;
}
- do_dma_memory_set(paddr, c, plen);
+ do_dma_memory_set(dma->as, paddr, c, plen);
len -= plen;
addr += plen;
@@ -375,13 +375,14 @@ int iommu_dma_memory_set(DMAContext *dma, dma_addr_t addr, uint8_t c,
return 0;
}
-void dma_context_init(DMAContext *dma, DMATranslateFunc translate,
+void dma_context_init(DMAContext *dma, AddressSpace *as, DMATranslateFunc translate,
DMAMapFunc map, DMAUnmapFunc unmap)
{
#ifdef DEBUG_IOMMU
fprintf(stderr, "dma_context_init(%p, %p, %p, %p)\n",
dma, translate, map, unmap);
#endif
+ dma->as = as;
dma->translate = translate;
dma->map = map;
dma->unmap = unmap;
@@ -407,14 +408,13 @@ void *iommu_dma_memory_map(DMAContext *dma, dma_addr_t addr, dma_addr_t *len,
/*
* If this is true, the virtual region is contiguous,
* but the translated physical region isn't. We just
- * clamp *len, much like cpu_physical_memory_map() does.
+ * clamp *len, much like address_space_map() does.
*/
if (plen < *len) {
*len = plen;
}
- buf = cpu_physical_memory_map(paddr, &plen,
- dir == DMA_DIRECTION_FROM_DEVICE);
+ buf = address_space_map(dma->as, paddr, &plen, dir == DMA_DIRECTION_FROM_DEVICE);
*len = plen;
return buf;
@@ -428,8 +428,7 @@ void iommu_dma_memory_unmap(DMAContext *dma, void *buffer, dma_addr_t len,
return;
}
- cpu_physical_memory_unmap(buffer, len,
- dir == DMA_DIRECTION_FROM_DEVICE,
- access_len);
+ address_space_unmap(dma->as, buffer, len, dir == DMA_DIRECTION_FROM_DEVICE,
+ access_len);
}
diff --git a/dma.h b/dma.h
index 1a33603f22..1bd6f4a651 100644
--- a/dma.h
+++ b/dma.h
@@ -11,6 +11,7 @@
#define DMA_H
#include <stdio.h>
+#include "memory.h"
#include "hw/hw.h"
#include "block.h"
#include "kvm.h"
@@ -61,6 +62,7 @@ typedef void DMAUnmapFunc(DMAContext *dma,
dma_addr_t access_len);
struct DMAContext {
+ AddressSpace *as;
DMATranslateFunc *translate;
DMAMapFunc *map;
DMAUnmapFunc *unmap;
@@ -93,7 +95,7 @@ static inline void dma_barrier(DMAContext *dma, DMADirection dir)
static inline bool dma_has_iommu(DMAContext *dma)
{
- return !!dma;
+ return dma && dma->translate;
}
/* Checks that the given range of addresses is valid for DMA. This is
@@ -120,8 +122,7 @@ static inline int dma_memory_rw_relaxed(DMAContext *dma, dma_addr_t addr,
{
if (!dma_has_iommu(dma)) {
/* Fast-path for no IOMMU */
- cpu_physical_memory_rw(addr, buf, len,
- dir == DMA_DIRECTION_FROM_DEVICE);
+ address_space_rw(dma->as, addr, buf, len, dir == DMA_DIRECTION_FROM_DEVICE);
return 0;
} else {
return iommu_dma_memory_rw(dma, addr, buf, len, dir);
@@ -179,8 +180,7 @@ static inline void *dma_memory_map(DMAContext *dma,
target_phys_addr_t xlen = *len;
void *p;
- p = cpu_physical_memory_map(addr, &xlen,
- dir == DMA_DIRECTION_FROM_DEVICE);
+ p = address_space_map(dma->as, addr, &xlen, dir == DMA_DIRECTION_FROM_DEVICE);
*len = xlen;
return p;
} else {
@@ -196,9 +196,8 @@ static inline void dma_memory_unmap(DMAContext *dma,
DMADirection dir, dma_addr_t access_len)
{
if (!dma_has_iommu(dma)) {
- cpu_physical_memory_unmap(buffer, (target_phys_addr_t)len,
- dir == DMA_DIRECTION_FROM_DEVICE,
- access_len);
+ address_space_unmap(dma->as, buffer, (target_phys_addr_t)len,
+ dir == DMA_DIRECTION_FROM_DEVICE, access_len);
} else {
iommu_dma_memory_unmap(dma, buffer, len, dir, access_len);
}
@@ -242,7 +241,7 @@ DEFINE_LDST_DMA(q, q, 64, be);
#undef DEFINE_LDST_DMA
-void dma_context_init(DMAContext *dma, DMATranslateFunc translate,
+void dma_context_init(DMAContext *dma, AddressSpace *as, DMATranslateFunc translate,
DMAMapFunc map, DMAUnmapFunc unmap);
struct ScatterGatherEntry {
diff --git a/hw/spapr_iommu.c b/hw/spapr_iommu.c
index 38034c07bd..33f84e27aa 100644
--- a/hw/spapr_iommu.c
+++ b/hw/spapr_iommu.c
@@ -21,6 +21,7 @@
#include "qdev.h"
#include "kvm_ppc.h"
#include "dma.h"
+#include "exec-memory.h"
#include "hw/spapr.h"
@@ -124,7 +125,7 @@ DMAContext *spapr_tce_new_dma_context(uint32_t liobn, size_t window_size)
}
tcet = g_malloc0(sizeof(*tcet));
- dma_context_init(&tcet->dma, spapr_tce_translate, NULL, NULL);
+ dma_context_init(&tcet->dma, &address_space_memory, spapr_tce_translate, NULL, NULL);
tcet->liobn = liobn;
tcet->window_size = window_size;
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-17 01:32:44 +0000