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-rw-r--r--src/dev/pcidev.cc84
-rw-r--r--src/dev/pcidev.hh11
-rw-r--r--src/dev/pcireg.h377
3 files changed, 245 insertions, 227 deletions
diff --git a/src/dev/pcidev.cc b/src/dev/pcidev.cc
index b27547519..232aa9e8b 100644
--- a/src/dev/pcidev.cc
+++ b/src/dev/pcidev.cc
@@ -97,8 +97,15 @@ PciDevice::PciConfigPort::getAddrRanges() const
PciDevice::PciDevice(const Params *p)
: DmaDevice(p),
PMCAP_BASE(p->PMCAPBaseOffset),
+ PMCAP_ID_OFFSET(p->PMCAPBaseOffset+PMCAP_ID),
+ PMCAP_PC_OFFSET(p->PMCAPBaseOffset+PMCAP_PC),
+ PMCAP_PMCS_OFFSET(p->PMCAPBaseOffset+PMCAP_PMCS),
MSICAP_BASE(p->MSICAPBaseOffset),
MSIXCAP_BASE(p->MSIXCAPBaseOffset),
+ MSIXCAP_ID_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_ID),
+ MSIXCAP_MXC_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_MXC),
+ MSIXCAP_MTAB_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_MTAB),
+ MSIXCAP_MPBA_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_MPBA),
PXCAP_BASE(p->PXCAPBaseOffset),
platform(p->platform),
pioDelay(p->pio_latency),
@@ -142,14 +149,14 @@ PciDevice::PciDevice(const Params *p)
// endianess and must be converted to Little Endian when accessed
// by the guest
// PMCAP
- pmcap.pid.cid = p->PMCAPCapId;
- pmcap.pid.next = p->PMCAPNextCapability;
+ pmcap.pid = (uint16_t)p->PMCAPCapId; // pid.cid
+ pmcap.pid |= (uint16_t)p->PMCAPNextCapability << 8; //pid.next
pmcap.pc = p->PMCAPCapabilities;
pmcap.pmcs = p->PMCAPCtrlStatus;
// MSICAP
- msicap.mid.cid = p->MSICAPCapId;
- msicap.mid.next = p->MSICAPNextCapability;
+ msicap.mid = (uint16_t)p->MSICAPCapId; //mid.cid
+ msicap.mid |= (uint16_t)p->MSICAPNextCapability << 8; //mid.next
msicap.mc = p->MSICAPMsgCtrl;
msicap.ma = p->MSICAPMsgAddr;
msicap.mua = p->MSICAPMsgUpperAddr;
@@ -158,8 +165,8 @@ PciDevice::PciDevice(const Params *p)
msicap.mpend = p->MSICAPPendingBits;
// MSIXCAP
- msixcap.mxid.cid = p->MSIXCAPCapId;
- msixcap.mxid.next = p->MSIXCAPNextCapability;
+ msixcap.mxid = (uint16_t)p->MSIXCAPCapId; //mxid.cid
+ msixcap.mxid |= (uint16_t)p->MSIXCAPNextCapability << 8; //mxid.next
msixcap.mxc = p->MSIXMsgCtrl;
msixcap.mtab = p->MSIXTableOffset;
msixcap.mpba = p->MSIXPbaOffset;
@@ -171,8 +178,9 @@ PciDevice::PciDevice(const Params *p)
// little endian byte-order as according the
// PCIe specification. Make sure to take the proper
// actions when manipulating these tables on the host
+ uint16_t msixcap_mxc_ts = msixcap.mxc & 0x07ff;
if (MSIXCAP_BASE != 0x0) {
- int msix_vecs = msixcap.mxc.ts + 1;
+ int msix_vecs = msixcap_mxc_ts + 1;
MSIXTable tmp1 = {{0UL,0UL,0UL,0UL}};
msix_table.resize(msix_vecs, tmp1);
@@ -183,10 +191,20 @@ PciDevice::PciDevice(const Params *p)
}
msix_pba.resize(pba_size, tmp2);
}
+ MSIX_TABLE_OFFSET = msixcap.mtab & 0xfffffffc;
+ MSIX_TABLE_END = MSIX_TABLE_OFFSET +
+ (msixcap_mxc_ts + 1) * sizeof(MSIXTable);
+ MSIX_PBA_OFFSET = msixcap.mpba & 0xfffffffc;
+ MSIX_PBA_END = MSIX_PBA_OFFSET +
+ ((msixcap_mxc_ts + 1) / MSIXVECS_PER_PBA)
+ * sizeof(MSIXPbaEntry);
+ if (((msixcap_mxc_ts + 1) % MSIXVECS_PER_PBA) > 0) {
+ MSIX_PBA_END += sizeof(MSIXPbaEntry);
+ }
// PXCAP
- pxcap.pxid.cid = p->PXCAPCapId;
- pxcap.pxid.next = p->PXCAPNextCapability;
+ pxcap.pxid = (uint16_t)p->PXCAPCapId; //pxid.cid
+ pxcap.pxid |= (uint16_t)p->PXCAPNextCapability << 8; //pxid.next
pxcap.pxcap = p->PXCAPCapabilities;
pxcap.pxdcap = p->PXCAPDevCapabilities;
pxcap.pxdc = p->PXCAPDevCtrl;
@@ -253,8 +271,30 @@ Tick
PciDevice::readConfig(PacketPtr pkt)
{
int offset = pkt->getAddr() & PCI_CONFIG_SIZE;
- if (offset >= PCI_DEVICE_SPECIFIC)
- panic("Device specific PCI config space not implemented!\n");
+
+ /* Return 0 for accesses to unimplemented PCI configspace areas */
+ if (offset >= PCI_DEVICE_SPECIFIC &&
+ offset < PCI_CONFIG_SIZE) {
+ warn_once("Device specific PCI config space "
+ "not implemented for %s!\n", this->name());
+ switch (pkt->getSize()) {
+ case sizeof(uint8_t):
+ pkt->set<uint8_t>(0);
+ break;
+ case sizeof(uint16_t):
+ pkt->set<uint16_t>(0);
+ break;
+ case sizeof(uint32_t):
+ pkt->set<uint32_t>(0);
+ break;
+ default:
+ panic("invalid access size(?) for PCI configspace!\n");
+ }
+ } else if (offset > PCI_CONFIG_SIZE) {
+ panic("Out-of-range access to PCI config space!\n");
+ }
+
+
pkt->allocate();
@@ -303,8 +343,23 @@ Tick
PciDevice::writeConfig(PacketPtr pkt)
{
int offset = pkt->getAddr() & PCI_CONFIG_SIZE;
- if (offset >= PCI_DEVICE_SPECIFIC)
- panic("Device specific PCI config space not implemented!\n");
+
+ /* No effect if we write to config space that is not implemented*/
+ if (offset >= PCI_DEVICE_SPECIFIC &&
+ offset < PCI_CONFIG_SIZE) {
+ warn_once("Device specific PCI config space "
+ "not implemented for %s!\n", this->name());
+ switch (pkt->getSize()) {
+ case sizeof(uint8_t):
+ case sizeof(uint16_t):
+ case sizeof(uint32_t):
+ break;
+ default:
+ panic("invalid access size(?) for PCI configspace!\n");
+ }
+ } else if (offset > PCI_CONFIG_SIZE) {
+ panic("Out-of-range access to PCI config space!\n");
+ }
switch (pkt->getSize()) {
case sizeof(uint8_t):
@@ -448,7 +503,8 @@ PciDevice::serialize(std::ostream &os)
// Only serialize if we have a non-zero base address
if (MSIXCAP_BASE != 0x0) {
- int msix_array_size = msixcap.mxc.ts + 1;
+ uint16_t msixcap_mxc_ts = msixcap.mxc & 0x07ff;
+ int msix_array_size = msixcap_mxc_ts + 1;
int pba_array_size = msix_array_size/MSIXVECS_PER_PBA;
if ((msix_array_size % MSIXVECS_PER_PBA) > 0) {
pba_array_size++;
diff --git a/src/dev/pcidev.hh b/src/dev/pcidev.hh
index 4f3dfd219..1c29293a6 100644
--- a/src/dev/pcidev.hh
+++ b/src/dev/pcidev.hh
@@ -108,12 +108,23 @@ class PciDevice : public DmaDevice
* @{
*/
const int PMCAP_BASE;
+ const int PMCAP_ID_OFFSET;
+ const int PMCAP_PC_OFFSET;
+ const int PMCAP_PMCS_OFFSET;
PMCAP pmcap;
const int MSICAP_BASE;
MSICAP msicap;
const int MSIXCAP_BASE;
+ const int MSIXCAP_ID_OFFSET;
+ const int MSIXCAP_MXC_OFFSET;
+ const int MSIXCAP_MTAB_OFFSET;
+ const int MSIXCAP_MPBA_OFFSET;
+ int MSIX_TABLE_OFFSET;
+ int MSIX_TABLE_END;
+ int MSIX_PBA_OFFSET;
+ int MSIX_PBA_END;
MSIXCAP msixcap;
const int PXCAP_BASE;
diff --git a/src/dev/pcireg.h b/src/dev/pcireg.h
index 045b88965..895ea0f68 100644
--- a/src/dev/pcireg.h
+++ b/src/dev/pcireg.h
@@ -205,36 +205,31 @@ union PCIConfig {
* Defines the Power Management capability register and all its associated
* bitfields for a PCIe device.
*/
-struct PMCAP {
- BitUnion16(PID)
- Bitfield<7,0> cid;
- Bitfield<15,8> next;
- EndBitUnion(PID)
- PID pid;
-
- BitUnion16(PC)
- Bitfield<2,0> vs;
- Bitfield<3> pmec;
- Bitfield<4> reserved;
- Bitfield<5> dsi;
- Bitfield<8,6> auxc;
- Bitfield<9> d1s;
- Bitfield<10> d2s;
- Bitfield<15,11> psup;
- EndBitUnion(PC)
- PC pc;
-
- BitUnion16(PMCS)
- Bitfield<1,0> ps;
- Bitfield<2> reserved0;
- Bitfield<3> nsfrst;
- Bitfield<7,4> reserved1;
- Bitfield<8> pmee;
- Bitfield<12,9> dse;
- Bitfield<14,13> dsc;
- Bitfield<15> pmes;
- EndBitUnion(PMCS)
- PMCS pmcs;
+union PMCAP {
+ uint8_t data[6];
+ struct {
+ uint16_t pid; /* 0:7 cid
+ * 8:15 next
+ */
+ uint16_t pc; /* 0:2 vs
+ * 3 pmec
+ * 4 reserved
+ * 5 dsi
+ * 6:8 auxc
+ * 9 d1s
+ * 10 d2s
+ * 11:15 psup
+ */
+ uint16_t pmcs; /* 0:1 ps
+ * 2 reserved
+ * 3 nsfrst
+ * 4:7 reserved
+ * 8 pmee
+ * 9:12 dse
+ * 13:14 dsc
+ * 15 pmes
+ */
+ };
};
/** @struct MSICAP
@@ -243,70 +238,51 @@ struct PMCAP {
* can be filled in if a device model supports both, but only 1 of
* MSI/MSIX/INTx interrupt mode can be selected at a given time.
*/
-struct MSICAP {
- BitUnion16(MID)
- Bitfield<7,0> cid;
- Bitfield<15,8> next;
- EndBitUnion(MID)
- MID mid;
-
- BitUnion16(MC)
- Bitfield<0> msie;
- Bitfield<3,1> mmc;
- Bitfield<6,4> mme;
- Bitfield<7> c64;
- Bitfield<8> pvm;
- Bitfield<15,9> reserved;
- EndBitUnion(MC)
- MC mc;
-
- BitUnion32(MA)
- Bitfield<1,0> reserved;
- Bitfield<31,2> addr;
- EndBitUnion(MA)
- MA ma;
-
- uint32_t mua;
-
- BitUnion16(MD)
- Bitfield<15,0> data;
- EndBitUnion(MD)
- MD md;
-
- uint32_t mmask;
- uint32_t mpend;
+union MSICAP {
+ uint8_t data[24];
+ struct {
+ uint16_t mid; /* 0:7 cid
+ * 8:15 next
+ */
+ uint16_t mc; /* 0 msie;
+ * 1:3 mmc;
+ * 4:6 mme;
+ * 7 c64;
+ * 8 pvm;
+ * 9:15 reserved;
+ */
+ uint32_t ma; /* 0:1 reserved
+ * 2:31 addr
+ */
+ uint32_t mua;
+ uint16_t md;
+ uint32_t mmask;
+ uint32_t mpend;
+ };
};
/** @struct MSIX
* Defines the MSI-X Capability register and its associated bitfields for
* a PCIe device.
*/
-struct MSIXCAP {
- BitUnion16(MXID)
- Bitfield<7,0> cid;
- Bitfield<15,8> next;
- EndBitUnion(MXID)
- MXID mxid;
-
- BitUnion16(MXC)
- Bitfield<10,0> ts;
- Bitfield<13,11> reserved;
- Bitfield<14> fm;
- Bitfield<15> mxe;
- EndBitUnion(MXC)
- MXC mxc;
-
- BitUnion32(MTAB)
- Bitfield<31,3> to;
- Bitfield<2,0> tbir;
- EndBitUnion(MTAB)
- MTAB mtab;
-
- BitUnion32(MPBA)
- Bitfield<2,0> pbir;
- Bitfield<31,3> pbao;
- EndBitUnion(MPBA)
- MPBA mpba;
+union MSIXCAP {
+ uint8_t data[12];
+ struct {
+ uint16_t mxid; /* 0:7 cid
+ * 8:15 next
+ */
+ uint16_t mxc; /* 0:10 ts;
+ * 11:13 reserved;
+ * 14 fm;
+ * 15 mxe;
+ */
+ uint32_t mtab; /* 0:2 tbir;
+ * 3:31 to;
+ */
+ uint32_t mpba; /* 0:2 pbir;
+ * 3:31> pbao;
+ */
+ };
};
union MSIXTable {
@@ -329,130 +305,105 @@ struct MSIXPbaEntry {
* for a PCIe device.
*/
struct PXCAP {
- BitUnion16(PXID)
- Bitfield<7,0> cid;
- Bitfield<15,8> next;
- EndBitUnion(PXID)
- PXID pxid;
-
- BitUnion16(_PXCAP)
- Bitfield<3,0> ver;
- Bitfield<7,4> dpt;
- Bitfield<8> si;
- Bitfield<13,9> imn;
- Bitfield<15,14> reserved;
- EndBitUnion(_PXCAP)
- _PXCAP pxcap;
-
- BitUnion32(PXDCAP)
- Bitfield<2,0> mps;
- Bitfield<4,3> pfs;
- Bitfield<5> etfs;
- Bitfield<8,6> l0sl;
- Bitfield<11,9> l1l;
- Bitfield<14,12> reserved0;
- Bitfield<15> rer;
- Bitfield<17,16> reserved1;
- Bitfield<25,18> csplv;
- Bitfield<27,26> cspls;
- Bitfield<28> flrc;
- Bitfield<31,29> reserved2;
- EndBitUnion(PXDCAP)
- PXDCAP pxdcap;
-
- BitUnion16(PXDC)
- Bitfield<0> cere;
- Bitfield<1> nfere;
- Bitfield<2> fere;
- Bitfield<3> urre;
- Bitfield<4> ero;
- Bitfield<7,5> mps;
- Bitfield<8> ete;
- Bitfield<9> pfe;
- Bitfield<10> appme;
- Bitfield<11> ens;
- Bitfield<14,12> mrrs;
- Bitfield<15> func_reset;
- EndBitUnion(PXDC)
- PXDC pxdc;
-
- BitUnion16(PXDS)
- Bitfield<0> ced;
- Bitfield<1> nfed;
- Bitfield<2> fed;
- Bitfield<3> urd;
- Bitfield<4> apd;
- Bitfield<5> tp;
- Bitfield<15,6> reserved;
- EndBitUnion(PXDS)
- PXDS pxds;
-
- BitUnion32(PXLCAP)
- Bitfield<3,0> sls;
- Bitfield<9,4> mlw;
- Bitfield<11,10> aspms;
- Bitfield<14,12> l0sel;
- Bitfield<17,15> l1el;
- Bitfield<18> cpm;
- Bitfield<19> sderc;
- Bitfield<20> dllla;
- Bitfield<21> lbnc;
- Bitfield<23,22> reserved;
- Bitfield<31,24> pn;
- EndBitUnion(PXLCAP)
- PXLCAP pxlcap;
-
- BitUnion16(PXLC)
- Bitfield<1,0> aspmc;
- Bitfield<2> reserved0;
- Bitfield<3> rcb;
- Bitfield<5,4> reserved1;
- Bitfield<6> ccc;
- Bitfield<7> es;
- Bitfield<8> ecpm;
- Bitfield<9> hawd;
- Bitfield<15,10> reserved2;
- EndBitUnion(PXLC)
- PXLC pxlc;
-
- BitUnion16(PXLS)
- Bitfield<3,0> cls;
- Bitfield<9,4> nlw;
- Bitfield<11,10> reserved0;
- Bitfield<12> slot_clk_config;
- Bitfield<15,13> reserved1;
- EndBitUnion(PXLS)
- PXLS pxls;
-
- BitUnion32(PXDCAP2)
- Bitfield<3,0> ctrs;
- Bitfield<4> ctds;
- Bitfield<5> arifs;
- Bitfield<6> aors;
- Bitfield<7> aocs32;
- Bitfield<8> aocs64;
- Bitfield<9> ccs128;
- Bitfield<10> nprpr;
- Bitfield<11> ltrs;
- Bitfield<13,12> tphcs;
- Bitfield<17,14> reserved0;
- Bitfield<19,18> obffs;
- Bitfield<20> effs;
- Bitfield<21> eetps;
- Bitfield<23,22> meetp;
- Bitfield<31,24> reserved1;
- EndBitUnion(PXDCAP2)
- PXDCAP2 pxdcap2;
-
- BitUnion32(PXDC2)
- Bitfield<3,0> ctv;
- Bitfield<4> ctd;
- Bitfield<9,5> reserved0;
- Bitfield<10> ltrme;
- Bitfield<12,11> reserved1;
- Bitfield<14,13> obffe;
- Bitfield<31,15> reserved2;
- EndBitUnion(PXDC2)
- PXDC2 pxdc2;
+ uint8_t data[48];
+ struct {
+ uint16_t pxid; /* 0:7 cid
+ * 8:15 next
+ */
+ uint16_t pxcap; /* 0:3 ver;
+ * 4:7 dpt;
+ * 8 si;
+ * 9:13 imn;
+ * 14:15 reserved;
+ */
+ uint32_t pxdcap; /* 0:2 mps;
+ * 3:4 pfs;
+ * 5 etfs;
+ * 6:8 l0sl;
+ * 9:11 l1l;
+ * 12:14 reserved;
+ * 15 rer;
+ * 16:17 reserved;
+ * 18:25 csplv;
+ * 26:27 cspls;
+ * 28 flrc;
+ * 29:31 reserved;
+ */
+ uint16_t pxdc; /* 0 cere;
+ * 1 nfere;
+ * 2 fere;
+ * 3 urre;
+ * 4 ero;
+ * 5:7 mps;
+ * 8 ete;
+ * 9 pfe;
+ * 10 appme;
+ * 11 ens;
+ * 12:14 mrrs;
+ * 15 func_reset;
+ */
+ uint16_t pxds; /* 0 ced;
+ * 1 nfed;
+ * 2 fed;
+ * 3 urd;
+ * 4 apd;
+ * 5 tp;
+ * 6:15 reserved;
+ */
+ uint32_t pxlcap; /* 0:3 sls;
+ * 4:9 mlw;
+ * 10:11 aspms;
+ * 12:14 l0sel;
+ * 15:17 l1el;
+ * 18 cpm;
+ * 19 sderc;
+ * 20 dllla;
+ * 21 lbnc;
+ * 22:23 reserved;
+ * 24:31 pn;
+ */
+ uint16_t pxlc; /* 0:1 aspmc;
+ * 2 reserved;
+ * 3 rcb;
+ * 4:5 reserved;
+ * 6 ccc;
+ * 7 es;
+ * 8 ecpm;
+ * 9 hawd;
+ * 10:15 reserved;
+ */
+ uint16_t pxls; /* 0:3 cls;
+ * 4:9 nlw;
+ * 10:11 reserved;
+ * 12 slot_clk_config;
+ * 13:15 reserved;
+ */
+ uint8_t reserved[20];
+ uint32_t pxdcap2; /* 0:3 ctrs;
+ * 4 ctds;
+ * 5 arifs;
+ * 6 aors;
+ * 7 aocs32;
+ * 8 aocs64;
+ * 9 ccs128;
+ * 10 nprpr;
+ * 11 ltrs;
+ * 12:13 tphcs;
+ * 14:17 reserved;
+ * 18:19 obffs;
+ * 20 effs;
+ * 21 eetps;
+ * 22:23 meetp;
+ * 24:31 reserved;
+ */
+ uint32_t pxdc2; /* 0:3 ctv;
+ * 4 ctd;
+ * 5:9 reserved;
+ * 10 ltrme;
+ * 11:12 reserved;
+ * 13:14 obffe;
+ * 15:31 reserved;
+ */
+ };
};
#endif // __PCIREG_H__
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-26 03:59:12 +0000