149ab747fSPaolo Bonzini /*
249ab747fSPaolo Bonzini * QEMU VMWARE paravirtual devices - auxiliary code
349ab747fSPaolo Bonzini *
449ab747fSPaolo Bonzini * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
549ab747fSPaolo Bonzini *
649ab747fSPaolo Bonzini * Developed by Daynix Computing LTD (http://www.daynix.com)
749ab747fSPaolo Bonzini *
849ab747fSPaolo Bonzini * Authors:
949ab747fSPaolo Bonzini * Dmitry Fleytman <dmitry@daynix.com>
1049ab747fSPaolo Bonzini * Yan Vugenfirer <yan@daynix.com>
1149ab747fSPaolo Bonzini *
1249ab747fSPaolo Bonzini * This work is licensed under the terms of the GNU GPL, version 2 or later.
1349ab747fSPaolo Bonzini * See the COPYING file in the top-level directory.
1449ab747fSPaolo Bonzini *
1549ab747fSPaolo Bonzini */
1649ab747fSPaolo Bonzini
1749ab747fSPaolo Bonzini #ifndef VMWARE_UTILS_H
1849ab747fSPaolo Bonzini #define VMWARE_UTILS_H
1949ab747fSPaolo Bonzini
2049ab747fSPaolo Bonzini #include "qemu/range.h"
21dd3c1684SMiao Yan #include "vmxnet_debug.h"
2249ab747fSPaolo Bonzini
2349ab747fSPaolo Bonzini /*
2449ab747fSPaolo Bonzini * Shared memory access functions with byte swap support
2549ab747fSPaolo Bonzini * Each function contains printout for reverse-engineering needs
2649ab747fSPaolo Bonzini *
2749ab747fSPaolo Bonzini */
2849ab747fSPaolo Bonzini static inline void
vmw_shmem_read(PCIDevice * d,hwaddr addr,void * buf,int len)29c5082773SKarimAllah Ahmed vmw_shmem_read(PCIDevice *d, hwaddr addr, void *buf, int len)
3049ab747fSPaolo Bonzini {
3149ab747fSPaolo Bonzini VMW_SHPRN("SHMEM r: %" PRIx64 ", len: %d to %p", addr, len, buf);
32c5082773SKarimAllah Ahmed pci_dma_read(d, addr, buf, len);
3349ab747fSPaolo Bonzini }
3449ab747fSPaolo Bonzini
3549ab747fSPaolo Bonzini static inline void
vmw_shmem_write(PCIDevice * d,hwaddr addr,void * buf,int len)36c5082773SKarimAllah Ahmed vmw_shmem_write(PCIDevice *d, hwaddr addr, void *buf, int len)
3749ab747fSPaolo Bonzini {
3849ab747fSPaolo Bonzini VMW_SHPRN("SHMEM w: %" PRIx64 ", len: %d to %p", addr, len, buf);
39c5082773SKarimAllah Ahmed pci_dma_write(d, addr, buf, len);
4049ab747fSPaolo Bonzini }
4149ab747fSPaolo Bonzini
4249ab747fSPaolo Bonzini static inline void
vmw_shmem_rw(PCIDevice * d,hwaddr addr,void * buf,int len,int is_write)43c5082773SKarimAllah Ahmed vmw_shmem_rw(PCIDevice *d, hwaddr addr, void *buf, int len, int is_write)
4449ab747fSPaolo Bonzini {
4549ab747fSPaolo Bonzini VMW_SHPRN("SHMEM r/w: %" PRIx64 ", len: %d (to %p), is write: %d",
4649ab747fSPaolo Bonzini addr, len, buf, is_write);
4749ab747fSPaolo Bonzini
48c5082773SKarimAllah Ahmed if (is_write)
49c5082773SKarimAllah Ahmed pci_dma_write(d, addr, buf, len);
50c5082773SKarimAllah Ahmed else
51c5082773SKarimAllah Ahmed pci_dma_read(d, addr, buf, len);
5249ab747fSPaolo Bonzini }
5349ab747fSPaolo Bonzini
5449ab747fSPaolo Bonzini static inline void
vmw_shmem_set(PCIDevice * d,hwaddr addr,uint8_t val,int len)55c5082773SKarimAllah Ahmed vmw_shmem_set(PCIDevice *d, hwaddr addr, uint8_t val, int len)
5649ab747fSPaolo Bonzini {
5749ab747fSPaolo Bonzini int i;
5849ab747fSPaolo Bonzini VMW_SHPRN("SHMEM set: %" PRIx64 ", len: %d (value 0x%X)", addr, len, val);
5949ab747fSPaolo Bonzini
6049ab747fSPaolo Bonzini for (i = 0; i < len; i++) {
61c5082773SKarimAllah Ahmed pci_dma_write(d, addr + i, &val, 1);
6249ab747fSPaolo Bonzini }
6349ab747fSPaolo Bonzini }
6449ab747fSPaolo Bonzini
6549ab747fSPaolo Bonzini static inline uint32_t
vmw_shmem_ld8(PCIDevice * d,hwaddr addr)66c5082773SKarimAllah Ahmed vmw_shmem_ld8(PCIDevice *d, hwaddr addr)
6749ab747fSPaolo Bonzini {
68c5082773SKarimAllah Ahmed uint8_t res;
69c5082773SKarimAllah Ahmed pci_dma_read(d, addr, &res, 1);
7049ab747fSPaolo Bonzini VMW_SHPRN("SHMEM load8: %" PRIx64 " (value 0x%X)", addr, res);
7149ab747fSPaolo Bonzini return res;
7249ab747fSPaolo Bonzini }
7349ab747fSPaolo Bonzini
7449ab747fSPaolo Bonzini static inline void
vmw_shmem_st8(PCIDevice * d,hwaddr addr,uint8_t value)75c5082773SKarimAllah Ahmed vmw_shmem_st8(PCIDevice *d, hwaddr addr, uint8_t value)
7649ab747fSPaolo Bonzini {
7749ab747fSPaolo Bonzini VMW_SHPRN("SHMEM store8: %" PRIx64 " (value 0x%X)", addr, value);
78c5082773SKarimAllah Ahmed pci_dma_write(d, addr, &value, 1);
7949ab747fSPaolo Bonzini }
8049ab747fSPaolo Bonzini
8149ab747fSPaolo Bonzini static inline uint32_t
vmw_shmem_ld16(PCIDevice * d,hwaddr addr)82c5082773SKarimAllah Ahmed vmw_shmem_ld16(PCIDevice *d, hwaddr addr)
8349ab747fSPaolo Bonzini {
84c5082773SKarimAllah Ahmed uint16_t res;
85c5082773SKarimAllah Ahmed pci_dma_read(d, addr, &res, 2);
86*c527e0afSThomas Huth res = le16_to_cpu(res);
8749ab747fSPaolo Bonzini VMW_SHPRN("SHMEM load16: %" PRIx64 " (value 0x%X)", addr, res);
8849ab747fSPaolo Bonzini return res;
8949ab747fSPaolo Bonzini }
9049ab747fSPaolo Bonzini
9149ab747fSPaolo Bonzini static inline void
vmw_shmem_st16(PCIDevice * d,hwaddr addr,uint16_t value)92c5082773SKarimAllah Ahmed vmw_shmem_st16(PCIDevice *d, hwaddr addr, uint16_t value)
9349ab747fSPaolo Bonzini {
9449ab747fSPaolo Bonzini VMW_SHPRN("SHMEM store16: %" PRIx64 " (value 0x%X)", addr, value);
95*c527e0afSThomas Huth value = cpu_to_le16(value);
96c5082773SKarimAllah Ahmed pci_dma_write(d, addr, &value, 2);
9749ab747fSPaolo Bonzini }
9849ab747fSPaolo Bonzini
9949ab747fSPaolo Bonzini static inline uint32_t
vmw_shmem_ld32(PCIDevice * d,hwaddr addr)100c5082773SKarimAllah Ahmed vmw_shmem_ld32(PCIDevice *d, hwaddr addr)
10149ab747fSPaolo Bonzini {
102c5082773SKarimAllah Ahmed uint32_t res;
103c5082773SKarimAllah Ahmed pci_dma_read(d, addr, &res, 4);
104*c527e0afSThomas Huth res = le32_to_cpu(res);
10549ab747fSPaolo Bonzini VMW_SHPRN("SHMEM load32: %" PRIx64 " (value 0x%X)", addr, res);
10649ab747fSPaolo Bonzini return res;
10749ab747fSPaolo Bonzini }
10849ab747fSPaolo Bonzini
10949ab747fSPaolo Bonzini static inline void
vmw_shmem_st32(PCIDevice * d,hwaddr addr,uint32_t value)110c5082773SKarimAllah Ahmed vmw_shmem_st32(PCIDevice *d, hwaddr addr, uint32_t value)
11149ab747fSPaolo Bonzini {
11249ab747fSPaolo Bonzini VMW_SHPRN("SHMEM store32: %" PRIx64 " (value 0x%X)", addr, value);
113*c527e0afSThomas Huth value = cpu_to_le32(value);
114c5082773SKarimAllah Ahmed pci_dma_write(d, addr, &value, 4);
11549ab747fSPaolo Bonzini }
11649ab747fSPaolo Bonzini
11749ab747fSPaolo Bonzini static inline uint64_t
vmw_shmem_ld64(PCIDevice * d,hwaddr addr)118c5082773SKarimAllah Ahmed vmw_shmem_ld64(PCIDevice *d, hwaddr addr)
11949ab747fSPaolo Bonzini {
120c5082773SKarimAllah Ahmed uint64_t res;
121c5082773SKarimAllah Ahmed pci_dma_read(d, addr, &res, 8);
122*c527e0afSThomas Huth res = le64_to_cpu(res);
12349ab747fSPaolo Bonzini VMW_SHPRN("SHMEM load64: %" PRIx64 " (value %" PRIx64 ")", addr, res);
12449ab747fSPaolo Bonzini return res;
12549ab747fSPaolo Bonzini }
12649ab747fSPaolo Bonzini
12749ab747fSPaolo Bonzini static inline void
vmw_shmem_st64(PCIDevice * d,hwaddr addr,uint64_t value)128c5082773SKarimAllah Ahmed vmw_shmem_st64(PCIDevice *d, hwaddr addr, uint64_t value)
12949ab747fSPaolo Bonzini {
13049ab747fSPaolo Bonzini VMW_SHPRN("SHMEM store64: %" PRIx64 " (value %" PRIx64 ")", addr, value);
131*c527e0afSThomas Huth value = cpu_to_le64(value);
132c5082773SKarimAllah Ahmed pci_dma_write(d, addr, &value, 8);
13349ab747fSPaolo Bonzini }
13449ab747fSPaolo Bonzini
13549ab747fSPaolo Bonzini /* Macros for simplification of operations on array-style registers */
13649ab747fSPaolo Bonzini
13749ab747fSPaolo Bonzini /*
13849ab747fSPaolo Bonzini * Whether <addr> lies inside of array-style register defined by <base>,
13949ab747fSPaolo Bonzini * number of elements (<cnt>) and element size (<regsize>)
14049ab747fSPaolo Bonzini *
14149ab747fSPaolo Bonzini */
14249ab747fSPaolo Bonzini #define VMW_IS_MULTIREG_ADDR(addr, base, cnt, regsize) \
14349ab747fSPaolo Bonzini range_covers_byte(base, cnt * regsize, addr)
14449ab747fSPaolo Bonzini
14549ab747fSPaolo Bonzini /*
14649ab747fSPaolo Bonzini * Returns index of given register (<addr>) in array-style register defined by
14749ab747fSPaolo Bonzini * <base> and element size (<regsize>)
14849ab747fSPaolo Bonzini *
14949ab747fSPaolo Bonzini */
15049ab747fSPaolo Bonzini #define VMW_MULTIREG_IDX_BY_ADDR(addr, base, regsize) \
15149ab747fSPaolo Bonzini (((addr) - (base)) / (regsize))
15249ab747fSPaolo Bonzini
15349ab747fSPaolo Bonzini #endif
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