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Adding CERT log_bo metadata #315

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Adding CERT log_bo metadata #315

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18 changes: 17 additions & 1 deletion src/shim/hwctx.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -244,14 +244,30 @@ delete_ctx_on_device()
fini_log_buf();
}

void
hw_ctx::
set_metadata()
{
m_metadata.magic_no = 0xBAADBEEF;
m_metadata.major = 1;
m_metadata.minor = 4;
m_metadata.num_cols = m_num_cols;
for (int i = 0; i < m_num_cols; i++) {
m_metadata.col_offset[i] = 1024 * i;
m_metadata.col_size[i] = 1024;
}
}

void
hw_ctx::
init_log_buf()
{
auto log_buf_size = m_num_cols * 1024;
set_metadata();
auto log_buf_size = m_num_cols * 1024 + sizeof(m_metadata);
m_log_bo = alloc_bo(nullptr, log_buf_size, XCL_BO_FLAGS_EXECBUF);
m_log_buf = m_log_bo->map(bo::map_type::write);
std::memset(m_log_buf, 0, log_buf_size);
std::memcpy(m_log_buf, &m_metadata, sizeof(m_metadata));
}

void
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13 changes: 13 additions & 0 deletions src/shim/hwctx.h
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,18 @@ class hw_ctx : public xrt_core::hwctx_handle
std::vector<uint8_t> m_pdi;
};

struct cert_log_metadata {
uint32_t magic_no;
uint8_t major;
uint8_t minor;
uint16_t num_cols; // how many valid cols, up to 8 for now
uint32_t col_offset[8]; // offset array for each valid col
uint32_t col_size[8]; // bo size for each valid col
};

void
set_metadata();

const std::vector<cu_info>&
get_cu_info() const;

Expand All @@ -100,6 +112,7 @@ class hw_ctx : public xrt_core::hwctx_handle
slot_id m_handle = AMDXDNA_INVALID_CTX_HANDLE;
amdxdna_qos_info m_qos = {};
std::vector<cu_info> m_cu_info;
struct cert_log_metadata m_metadata;
std::unique_ptr<hw_q> m_q;
uint32_t m_ops_per_cycle;
uint32_t m_num_cols;
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