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memrange

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This commit is contained in:
Jonathan Campbell 2024-12-14 11:47:00 -08:00
parent 5901a0b3fa
commit e76d1fd924
1 changed files with 47 additions and 0 deletions
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47
src/ints/bios.cpp
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@ -8404,6 +8404,9 @@ namespace ACPIMethodFlags {
static constexpr unsigned int ACPIrtIO_16BitDecode = (1u << 0u);
static constexpr unsigned int ACPIrtMR24_Writeable = (1u << 0u);
static constexpr unsigned int ACPIrtMR32_Writeable = (1u << 0u);
namespace ACPIFieldFlag {
namespace AccessType {
enum {
@ -8648,9 +8651,12 @@ class ACPIAMLWriter {
void begin(unsigned char *n_w,unsigned char *n_f);
public:
ACPIAMLWriter &rtDMA(const unsigned char bitmask,const unsigned char flags);
ACPIAMLWriter &rtMemRange24(const unsigned int flags,const unsigned int minr,const unsigned int maxr,const unsigned int alignr,const unsigned int rangr);
ACPIAMLWriter &rtMemRange32(const unsigned int flags,const unsigned int minr,const unsigned int maxr,const unsigned int alignr,const unsigned int rangr);
ACPIAMLWriter &rtIO(const unsigned int flags,const uint16_t minport,const uint16_t maxport,const uint8_t alignment,const uint8_t rlength);
ACPIAMLWriter &rtIRQ(const uint16_t bitmask/*bits [15:0] correspond to IRQ 15-0*/,const bool pciStyle=false);
ACPIAMLWriter &rtHdrSmall(const unsigned char itemName,const unsigned int length);
ACPIAMLWriter &rtHdrLarge(const unsigned char itemName,const unsigned int length);
ACPIAMLWriter &rtBegin(void);
ACPIAMLWriter &rtEnd(void);
public:
@ -8896,6 +8902,14 @@ ACPIAMLWriter &ACPIAMLWriter::ElseOpEnd(void) {
return *this;
}
ACPIAMLWriter &ACPIAMLWriter::rtHdrLarge(const unsigned char itemName,const unsigned int length) {
assert(length <= 65536);
assert(itemName < 128);
*w++ = 0x80 + itemName;
host_writew(w,length); w += 2;
return *this;
}
ACPIAMLWriter &ACPIAMLWriter::rtHdrSmall(const unsigned char itemName,const unsigned int length) {
assert(length < 8);
assert(itemName < 16);
@ -8921,6 +8935,26 @@ ACPIAMLWriter &ACPIAMLWriter::rtEnd(void) {
return *this;
}
ACPIAMLWriter &ACPIAMLWriter::rtMemRange24(const unsigned int flags,const unsigned int minr,const unsigned int maxr,const unsigned int alignr,const unsigned int rangr) {
rtHdrLarge(1/*24-bit memory range format*/,9/*length*/);
*w++ = flags;
host_writew(w,minr >> 8u); w += 2;
host_writew(w,maxr >> 8u); w += 2;
host_writew(w,(alignr + 0xFFu) >> 8u); w += 2; /* FIXME: Um... alignment in bytes but everything else multiple of 256 bytes? */
host_writew(w,rangr >> 8u); w += 2;
return *this;
}
ACPIAMLWriter &ACPIAMLWriter::rtMemRange32(const unsigned int flags,const unsigned int minr,const unsigned int maxr,const unsigned int alignr,const unsigned int rangr) {
rtHdrLarge(5/*32-bit memory range format*/,17/*length*/);
*w++ = flags;
host_writed(w,minr); w += 4;
host_writed(w,maxr); w += 4;
host_writed(w,alignr); w += 4;
host_writed(w,rangr); w += 4;
return *this;
}
ACPIAMLWriter &ACPIAMLWriter::rtDMA(const unsigned char bitmask,const unsigned char flags) {
rtHdrSmall(5/*DMA format*/,2/*length*/);
*w++ = bitmask;
@ -9270,6 +9304,19 @@ void BuildACPITable(void) {
bitop::bit2mask(7),
(3 << 5)/*type F DMA supported*/|
(1 << 0)/*preference is 8 or 16-bit */);
aml.rtMemRange24(
ACPIrtMR24_Writeable,
0xA0000,/*min*/
0xA0000,/*max*/
0x0001,/*align*/
0x20000/*range*/);
aml.rtMemRange32(
ACPIrtMR32_Writeable,
0x80000000,/*min*/
0x80000000,/*max*/
0x00000001,/*align*/
0x70000000/*range*/);
aml.rtEnd();
aml.BufferOpEnd();
}