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Use hash_table_u64 instead of hash_table directly, since the former
will also handle the special keys (deleted and freed) and allow use
the whole u64 space.
Fixes crash in INTEL_DEBUG=bat when using a key with value 0 -- the
current value for a freed key.
Fixes: b38dab101ca "util/hash_table: Assert that keys are not reserved pointers"
Reviewed-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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The hash_table_u64 should support any uint64_t as input. It does
special handling for the "deleted" key, storing the data in the table
itself; do the same for the "freed" key.
Fixes: b38dab101ca "util/hash_table: Assert that keys are not reserved pointers"
Reviewed-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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If we insert a NULL key, it will appear to succeed but will mess up
entry counting. Similar errors can occur if someone accidentally
inserts the deleted key. The later is highly unlikely but technically
possible so we should guard against it too.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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While we're here, copy the size table from set.c to get rid of hard tabs
in the hash_table.c version.
Reviewed-by: Eric Anholt <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
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To keep it in sync with the set implementation.
Reviewed-by: Eric Anholt <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
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To keep the set and hash table in sync. Note that some of this had
already been done for hash tables, in particular pulling out the
hash % ht->size computation.
Reviewed-by: Eric Anholt <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
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These combinations are common enough and deserve a shortcut.
Reviewed-by: Jason Ekstrand <[email protected]>
Acked-by: Eric Engestrom <[email protected]>
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Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Signed-off-by: Eric Engestrom <[email protected]>
Reviewed-by: Timothy Arceri <[email protected]>
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And the corresponding test case.
Reviewed-by: Eric Anholt <[email protected]>
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V2: Don't rzalloc; we are about to rewrite the whole thing (Vladislav)
Reviewed-by: Eric Anholt <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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It seems nobody's using the string hashing function. If you try to
pass it directly to the hashtable creation function, you'll get
compiler warning for non matching prototypes. Let's make them match.
Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Add uintptr_t cast to fix 'cast to pointer from integer of different size'
warning on 32bit build (build error on Android M).
Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Michel Dänzer <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>
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Needed for bindless handles which are represented using
64-bit unsigned integers. All hash table implementations should
be uniformized later on.
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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v4: coding style change (Matt Turner)
Reviewed-by: Ian Romanick <[email protected]> (v3)
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The equivalent of the last patch for the hash table. I'm not aware of
any issues this fixes.
v2:
- use entry_is_deleted (Timothy)
Reviewed-by: Timothy Arceri <[email protected]>
Signed-off-by: Connor Abbott <[email protected]>
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Previously, the hash_table_insert function would bail early if it found a
deleted slot that it could re-use. However, this is a problem if the key
being inserted is already in the hash table but further down the list. If
this happens, the element ends up getting inserted in the hash table twice.
This commit makes it so that we walk over all of the possible entries for
the given key and then, if we don't find the key, place it in the available
free entry we found.
Reviewed-by: Eric Anholt <[email protected]>
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v2: s/unsigned int/unsigned/ in prog_optimize.c
Signed-off-by: Jan Vesely <[email protected]>
Reviewed-by: David Heidelberg <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
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We already have search_pre_hashed. This makes the APIs match better.
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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This way the basics of the FNV-1a hash can be reused to easily create other
hashing functions.
Reviewed-by: Eric Anholt <[email protected]>
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Not sure how we both missed this. None of the callers were using the
return value, though.
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Previously, the hash_table API required the user to do all of the hashing
of keys as it passed them in. Since the hashing function is intrinsically
tied to the comparison function, it makes sense for the hash table to know
about it. Also, it makes for a somewhat clumsy API as the user is
constantly calling hashing functions many of which have long names. This
is especially bad when the standard call looks something like
_mesa_hash_table_insert(ht, _mesa_pointer_hash(key), key, data);
In the above case, there is no reason why the hash table shouldn't do the
hashing for you. We leave the option for you to do your own hashing if
it's more efficient, but it's no longer needed. Also, if you do do your
own hashing, the hash table will assert that your hash matches what it
expects out of the hashing function. This should make it harder to mess up
your hashing.
v2: change to call the old entrypoint "pre_hashed" rather than
"with_hash", like cworth's equivalent change upstream (change by
anholt, acked-in-general by Jason).
Signed-off-by: Jason Ekstrand <[email protected]>
Signed-off-by: Eric Anholt <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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Signed-off-by: Timothy Arceri <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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This gathers macros that have been included across components into util so
that the include chain can be more vertical. In particular, this makes
util stand on its own without any dependence whatsoever on the rest of
mesa.
Signed-off-by: "Jason Ekstrand" <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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This hash table is used in core Mesa, the GLSL compiler, and the i965
driver, which makes it a good candidate for the new src/util module.
It's much faster than program/hash_table.[ch] (see commit 6991c2922f5
for data), and José's u_hash_table.c has a comment saying Gallium should
probably consider switching to a linear probing hash table at some point.
So this seems like the best candidate for a shared data structure.
Signed-off-by: Kenneth Graunke <[email protected]>
v2 (Jason Ekstrand): Pick up another hash_table use and patch up scons
Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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