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GPU (SunOS): rework GPU detection

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This commit is contained in:
Carter Li
2025-06-21 23:00:34 +08:00
committed by 李通洲
parent a9f021ccb9
commit ca049997b1
1 changed files with 48 additions and 71 deletions
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src/detection/gpu/gpu_sunos.c
+48 -71
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@@ -1,83 +1,60 @@
#include "gpu.h"
#include "common/io/io.h"
#include "common/processing.h"
#include "util/stringUtils.h"
const char* ffDetectGPUImpl(FF_MAYBE_UNUSED const FFGPUOptions* options, FFlist* gpus)
#include <libdevinfo.h>
static int walkDevTree(di_node_t node, FFlist* gpus)
{
// SunOS requires root permission to query PCI device list, except `/usr/bin/scanpci`
// Same behavior can be observed with `cp $(which scanpci) /tmp/ && /tmp/scanpci`
FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
const char* error = ffProcessAppendStdOut(&buffer, (char* const[]) {
"/usr/bin/scanpci",
"-v",
NULL,
});
if (error)
return error;
if (!ffStrbufStartsWithS(&buffer, "\npci "))
return "Invalid scanpci result";
// pci bus 0x0000 cardnum 0x00 function 0x00: vendor 0x1414 device 0x008e
// Device unknown
// CardVendor 0x0000 card 0x0000 (Card unknown)
// STATUS 0x0010 COMMAND 0x0007
// CLASS 0x03 0x02 0x00 REVISION 0x00
// BIST 0x00 HEADER 0x00 LATENCY 0x00 CACHE 0x00
// MAX_LAT 0x00 MIN_GNT 0x00 INT_PIN 0x00 INT_LINE 0x00
for (
const char* pclass = strstr(buffer.chars, "\n CLASS 0x03 ");
pclass;
pclass = strstr(pclass, "\n CLASS 0x03 ")
)
if (ffStrEquals(di_node_name(node), "display"))
{
// find the start of device entry
const char* pstart = memrchr(buffer.chars, '\n', (size_t) (pclass - buffer.chars));
if (pstart == NULL)
return "PCI info not found, invalid scanpci result";
while (pstart[1] != 'p')
int* vendorId;
int* deviceId;
if (di_prop_lookup_ints(DDI_DEV_T_ANY, node, "vendor-id", &vendorId) > 0
&& di_prop_lookup_ints(DDI_DEV_T_ANY, node, "device-id", &deviceId) > 0)
{
pstart = memrchr(buffer.chars, '\n', (size_t) (pstart - buffer.chars - 1));
if (pstart == NULL)
return "PCI info not found, invalid scanpci result";
}
++pstart;
FFGPUResult* gpu = (FFGPUResult*)ffListAdd(gpus);
ffStrbufInitS(&gpu->vendor, ffGPUGetVendorString((uint16_t) *vendorId));
ffStrbufInit(&gpu->name);
ffStrbufInitS(&gpu->driver, di_driver_name(node));
ffStrbufInitStatic(&gpu->platformApi, "libdevinfo");
ffStrbufInit(&gpu->memoryType);
gpu->index = FF_GPU_INDEX_UNSET;
gpu->temperature = FF_GPU_TEMP_UNSET;
gpu->coreCount = FF_GPU_CORE_COUNT_UNSET;
gpu->coreUsage = FF_GPU_CORE_USAGE_UNSET;
gpu->type = FF_GPU_TYPE_UNKNOWN;
gpu->dedicated.total = gpu->dedicated.used = gpu->shared.total = gpu->shared.used = FF_GPU_VMEM_SIZE_UNSET;
gpu->deviceId = strtoul(di_bus_addr(node), NULL, 16);
gpu->frequency = FF_GPU_FREQUENCY_UNSET;
uint32_t vendorId, deviceId;
if (sscanf(pstart, "pci %*[^:]: vendor %x device %x",
&vendorId, &deviceId) != 2)
return "PCI info not found, invalid scanpci result";
if (gpu->vendor.chars == FF_GPU_VENDOR_NAME_AMD)
{
int* revId;
if (di_prop_lookup_ints(DDI_DEV_T_ANY, node, "revision-id", &revId) > 0)
ffGPUQueryAmdGpuName((uint16_t) *deviceId, (uint8_t) *revId, gpu);
}
pclass += strlen("\n CLASS 0x03 ");
uint32_t subclass = (uint32_t) strtoul(pclass, NULL, 16);
pclass += strlen("0x02 0x00 REVISION ");
uint32_t revision = (uint32_t) strtoul(pclass, NULL, 16);
FFGPUResult* gpu = (FFGPUResult*)ffListAdd(gpus);
ffStrbufInitStatic(&gpu->vendor, ffGPUGetVendorString(vendorId));
ffStrbufInit(&gpu->memoryType);
ffStrbufInit(&gpu->name);
ffStrbufInit(&gpu->driver);
ffStrbufInitStatic(&gpu->platformApi, "/usr/bin/scanpci");
gpu->index = FF_GPU_INDEX_UNSET;
gpu->temperature = FF_GPU_TEMP_UNSET;
gpu->coreCount = FF_GPU_CORE_COUNT_UNSET;
gpu->coreUsage = FF_GPU_CORE_USAGE_UNSET;
gpu->type = FF_GPU_TYPE_UNKNOWN;
gpu->dedicated.total = gpu->dedicated.used = gpu->shared.total = gpu->shared.used = FF_GPU_VMEM_SIZE_UNSET;
gpu->deviceId = 0;
gpu->frequency = FF_GPU_FREQUENCY_UNSET;
if (gpu->vendor.chars == FF_GPU_VENDOR_NAME_AMD)
ffGPUQueryAmdGpuName((uint16_t) deviceId, (uint8_t) revision, gpu);
if (gpu->name.length == 0)
{
ffGPUFillVendorAndName((uint8_t) subclass, (uint16_t) vendorId, (uint16_t) deviceId, gpu);
if (gpu->name.length == 0)
{
uint8_t subclass = 0; // assume VGA
int* classCode;
if (di_prop_lookup_ints(DDI_DEV_T_ANY, node, "class-code", &classCode) > 0)
subclass = (uint8_t) (*classCode & 0xFFFF);
ffGPUFillVendorAndName(subclass, (uint16_t) *vendorId, (uint16_t) *deviceId, gpu);
}
}
}
return DI_WALK_CONTINUE;
}
const char* ffDetectGPUImpl(FF_MAYBE_UNUSED const FFGPUOptions* options, FFlist* gpus)
{
di_node_t rootNode = di_init("/", DINFOCPYALL);
if (rootNode == DI_NODE_NIL)
return "di_init() failed";
di_walk_node(rootNode, DI_WALK_CLDFIRST, gpus, (void*) walkDevTree);
di_fini(rootNode);
return NULL;
}