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remove readback hacks, allows to read/write guest memory directly

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This commit is contained in:
nmzik
2026-07-17 05:16:00 +02:00
parent 013e9a4485
commit e903c93848
27 changed files with 522 additions and 1228 deletions
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src/libs/agc.cpp
+6 -23
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@@ -11,7 +11,6 @@
#include "graphics/guest_gpu/pm4.h"
#include "graphics/guest_gpu/gpu_defs.h"
#include "graphics/guest_gpu/tile.h"
#include "graphics/host_gpu/hostMemory.h"
#include "graphics/host_gpu/objects/label.h"
#include "graphics/host_gpu/renderer/render.h"
#include "graphics/presentation/renderDoc.h"
@@ -373,11 +372,6 @@ struct Label {
uint64_t m_reserved[3];
};
static bool is_readable_command_packet_range(const uint32_t* cmd, uint32_t num_dw) {
return HostMemoryRangeIsReadable(reinterpret_cast<uintptr_t>(cmd),
static_cast<uint64_t>(num_dw) * sizeof(uint32_t));
}
int KYTY_SYSV_ABI GraphicsInit(uint32_t* state, uint32_t ver) {
PRINT_NAME();
@@ -3750,8 +3744,7 @@ static void flush_pending_graphics_segment_before_acb(const uint32_t* acb,
if (!wait_addresses.empty() && Gen5::g_pending_graphics_segment.start != nullptr) {
auto* scan = Gen5::g_pending_graphics_segment.start;
auto* matched_end = Gen5::g_pending_graphics_segment.start;
while (scan < Gen5::g_pending_graphics_segment.end &&
Gen5::is_readable_command_packet_range(scan, 1)) {
while (scan < Gen5::g_pending_graphics_segment.end) {
auto cmd_id = *scan;
if (cmd_id == 0x80000000u) {
scan++;
@@ -3763,8 +3756,7 @@ static void flush_pending_graphics_segment_before_acb(const uint32_t* acb,
auto len = KYTY_PM4_LEN(cmd_id);
if (len == 0 ||
len > static_cast<uint32_t>(Gen5::g_pending_graphics_segment.end - scan) ||
!Gen5::is_readable_command_packet_range(scan, len)) {
len > static_cast<uint32_t>(Gen5::g_pending_graphics_segment.end - scan)) {
break;
}
@@ -3789,8 +3781,7 @@ static void flush_pending_graphics_segment_before_acb(const uint32_t* acb,
Gen5::g_pending_graphics_segment.end > Gen5::g_pending_graphics_segment.start) {
auto* scan = Gen5::g_pending_graphics_segment.start;
auto* valid_end = Gen5::g_pending_graphics_segment.start;
while (scan < Gen5::g_pending_graphics_segment.end &&
Gen5::is_readable_command_packet_range(scan, 1)) {
while (scan < Gen5::g_pending_graphics_segment.end) {
auto cmd_id = *scan;
if (cmd_id == 0x80000000u) {
scan++;
@@ -3803,8 +3794,7 @@ static void flush_pending_graphics_segment_before_acb(const uint32_t* acb,
auto len = KYTY_PM4_LEN(cmd_id);
if (len == 0 ||
len > static_cast<uint32_t>(Gen5::g_pending_graphics_segment.end - scan) ||
!Gen5::is_readable_command_packet_range(scan, len)) {
len > static_cast<uint32_t>(Gen5::g_pending_graphics_segment.end - scan)) {
break;
}
@@ -3931,16 +3921,14 @@ int KYTY_SYSV_ABI GraphicsDriverSubmitMultiCommandBuffers(uint32_t queue, uint32
}
static void submit_acb(uint32_t queue, uint32_t* acb, uint32_t size_in_dwords) {
if (acb != nullptr && size_in_dwords >= 5 && Gen5::is_readable_command_packet_range(acb, 5)) {
if (acb != nullptr && size_in_dwords >= 5) {
auto descriptor_addr =
static_cast<uint64_t>(acb[0]) | (static_cast<uint64_t>(acb[1]) << 32u);
auto descriptor_size = acb[2];
auto descriptor_flags = acb[3];
auto descriptor_magic = acb[4];
if (descriptor_addr != 0 && descriptor_size != 0 && descriptor_flags == 0 &&
descriptor_magic == 0x5533ccaau &&
Gen5::is_readable_command_packet_range(reinterpret_cast<uint32_t*>(descriptor_addr),
descriptor_size)) {
descriptor_magic == 0x5533ccaau) {
LOGF("\t descriptor addr = 0x%016" PRIx64 "\n"
"\t descriptor size = 0x%08" PRIx32 "\n"
"\t descriptor magic = 0x%08" PRIx32 "\n",
@@ -3976,11 +3964,6 @@ int KYTY_SYSV_ABI GraphicsDriverSubmitAcb(uint32_t queue, const Packet* packet)
if (packet == nullptr) {
return OK;
}
if (!Gen5::is_readable_command_packet_range(reinterpret_cast<const uint32_t*>(packet),
sizeof(Packet) / sizeof(uint32_t))) {
return OK;
}
LOGF("\t acb = 0x%016" PRIx64 "\n"
"\t size = 0x%08" PRIx32 "\n"
"\t flags = 0x%02" PRIx8 "\n",