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intel/genxml: Add an field option for nonzero="true"

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This asserts that the value supplied is non-zero.  Useful for things
like MOCS fields on modern platforms where we really want to avoid
setting it to 0 (uncached).

mbz types cannot be flagged as nonzero.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13480>
This commit is contained in:
Kenneth Graunke
2021-10-18 22:35:33 -07:00
committed by Marge Bot
parent e6ebf5add7
commit ebe2a2b5f6
1 changed files with 65 additions and 16 deletions
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81
src/intel/genxml/gen_pack_header.py
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@@ -89,6 +89,13 @@ __gen_uint(uint64_t v, uint32_t start, NDEBUG_UNUSED uint32_t end)
return v << start;
}
static inline __attribute__((always_inline)) uint64_t
__gen_uint_nonzero(uint64_t v, uint32_t start, uint32_t end)
{
assert(v != 0ull);
return __gen_uint(v, start, end);
}
static inline __attribute__((always_inline)) uint64_t
__gen_sint(int64_t v, uint32_t start, uint32_t end)
{
@@ -109,6 +116,13 @@ __gen_sint(int64_t v, uint32_t start, uint32_t end)
return (v & mask) << start;
}
static inline __attribute__((always_inline)) uint64_t
__gen_sint_nonzero(int64_t v, uint32_t start, uint32_t end)
{
assert(v != 0ll);
return __gen_sint(v, start, end);
}
static inline __attribute__((always_inline)) uint64_t
__gen_offset(uint64_t v, NDEBUG_UNUSED uint32_t start, NDEBUG_UNUSED uint32_t end)
{
@@ -122,6 +136,13 @@ __gen_offset(uint64_t v, NDEBUG_UNUSED uint32_t start, NDEBUG_UNUSED uint32_t en
return v;
}
static inline __attribute__((always_inline)) uint64_t
__gen_offset_nonzero(uint64_t v, uint32_t start, uint32_t end)
{
assert(v != 0ull);
return __gen_offset(v, start, end);
}
static inline __attribute__((always_inline)) uint64_t
__gen_address(__gen_user_data *data, void *location,
__gen_address_type address, uint32_t delta,
@@ -145,6 +166,13 @@ __gen_float(float v)
return ((union __intel_value) { .f = (v) }).dw;
}
static inline __attribute__((always_inline)) uint32_t
__gen_float_nonzero(float v)
{
assert(v != 0.0f);
return __gen_float(v);
}
static inline __attribute__((always_inline)) uint64_t
__gen_sfixed(float v, uint32_t start, uint32_t end, uint32_t fract_bits)
{
@@ -164,6 +192,13 @@ __gen_sfixed(float v, uint32_t start, uint32_t end, uint32_t fract_bits)
return (int_val & mask) << start;
}
static inline __attribute__((always_inline)) uint64_t
__gen_sfixed_nonzero(float v, uint32_t start, uint32_t end, uint32_t fract_bits)
{
assert(v != 0.0f);
return __gen_sfixed(v, start, end, fract_bits);
}
static inline __attribute__((always_inline)) uint64_t
__gen_ufixed(float v, uint32_t start, NDEBUG_UNUSED uint32_t end, uint32_t fract_bits)
{
@@ -182,6 +217,13 @@ __gen_ufixed(float v, uint32_t start, NDEBUG_UNUSED uint32_t end, uint32_t fract
return uint_val << start;
}
static inline __attribute__((always_inline)) uint64_t
__gen_ufixed_nonzero(float v, uint32_t start, uint32_t end, uint32_t fract_bits)
{
assert(v != 0.0f);
return __gen_ufixed(v, start, end, fract_bits);
}
#ifndef __gen_address_type
#error #define __gen_address_type before including this file
#endif
@@ -203,6 +245,10 @@ def num_from_str(num_str):
assert not num_str.startswith('0'), 'octals numbers not allowed'
return int(num_str)
def bool_from_str(bool_str):
options = { "true": True, "false": False }
return options[bool_str];
class Field(object):
ufixed_pattern = re.compile(r"u(\d+)\.(\d+)")
sfixed_pattern = re.compile(r"s(\d+)\.(\d+)")
@@ -214,6 +260,7 @@ class Field(object):
self.start = int(attrs["start"])
self.end = int(attrs["end"])
self.type = attrs["type"]
self.nonzero = bool_from_str(attrs.get("nonzero", "false"))
assert self.start <= self.end, \
'field {} has end ({}) < start ({})'.format(self.name, self.end,
@@ -435,36 +482,38 @@ class Group(object):
if field.type != "mbo" and field.type != "mbz":
name = field.name + field.dim
nz = "_nonzero" if field.nonzero else ""
if field.type == "mbo":
non_address_fields.append("__gen_mbo(%d, %d)" % \
(field.start - dword_start, field.end - dword_start))
elif field.type == "mbz":
pass
assert not field.nonzero
elif field.type == "address":
pass
elif field.type == "uint":
non_address_fields.append("__gen_uint(values->%s, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start))
non_address_fields.append("__gen_uint%s(values->%s, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start))
elif field.is_enum_type():
non_address_fields.append("__gen_uint(values->%s, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start))
non_address_fields.append("__gen_uint%s(values->%s, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start))
elif field.type == "int":
non_address_fields.append("__gen_sint(values->%s, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start))
non_address_fields.append("__gen_sint%s(values->%s, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start))
elif field.type == "bool":
non_address_fields.append("__gen_uint(values->%s, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start))
non_address_fields.append("__gen_uint%s(values->%s, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start))
elif field.type == "float":
non_address_fields.append("__gen_float(values->%s)" % name)
non_address_fields.append("__gen_float%s(values->%s)" % (nz, name))
elif field.type == "offset":
non_address_fields.append("__gen_offset(values->%s, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start))
non_address_fields.append("__gen_offset%s(values->%s, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start))
elif field.type == 'ufixed':
non_address_fields.append("__gen_ufixed(values->%s, %d, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start, field.fractional_size))
non_address_fields.append("__gen_ufixed%s(values->%s, %d, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start, field.fractional_size))
elif field.type == 'sfixed':
non_address_fields.append("__gen_sfixed(values->%s, %d, %d, %d)" % \
(name, field.start - dword_start, field.end - dword_start, field.fractional_size))
non_address_fields.append("__gen_sfixed%s(values->%s, %d, %d, %d)" % \
(nz, name, field.start - dword_start, field.end - dword_start, field.fractional_size))
elif field.is_struct_type():
non_address_fields.append("__gen_uint(v%d_%d, %d, %d)" % \
(index, field_index, field.start - dword_start, field.end - dword_start))