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ac/uvd: Add ac_uvd_alloc_stream_handle

Browse source 
Cc: mesa-stable
Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34807>
(cherry picked from commit 69455e8208)
This commit is contained in:
David Rosca 2025-05-05 09:21:21 +02:00 • committed by Eric Engestrom
parent 11385075a2
commit 4cfaede767
4 changed files with 43 additions and 1 deletions
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2
.pick_status.json
View file

@ -2994,7 +2994,7 @@
"description": "ac/uvd: Add ac_uvd_alloc_stream_handle",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

33
src/amd/common/ac_uvd_dec.c Normal file
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@ -0,0 +1,33 @@
/**************************************************************************
*
* Copyright 2025 Advanced Micro Devices, Inc.
*
* SPDX-License-Identifier: MIT
*
**************************************************************************/
#include <stdint.h>
#include "ac_uvd_dec.h"
#include "util/os_time.h"
#include "util/detect_os.h"
#include "util/bitpack_helpers.h"
#if DETECT_OS_POSIX
#include <unistd.h>
#endif
void ac_uvd_init_stream_handle(struct ac_uvd_stream_handle *handle)
{
#if DETECT_OS_POSIX
handle->base = util_bitreverse(getpid() ^ os_time_get());
#else
handle->base = util_bitreverse(os_time_get());
#endif
handle->counter = 0;
}
unsigned ac_uvd_alloc_stream_handle(struct ac_uvd_stream_handle *handle)
{
return handle->base ^ ++handle->counter;
}

8
src/amd/common/ac_uvd_dec.h
View file

@ -406,4 +406,12 @@ struct ruvd_msg {
} body;
};
struct ac_uvd_stream_handle {
uint32_t base;
uint32_t counter;
};
void ac_uvd_init_stream_handle(struct ac_uvd_stream_handle *handle);
unsigned ac_uvd_alloc_stream_handle(struct ac_uvd_stream_handle *handle);
#endif

1
src/amd/common/meson.build
View file

@ -91,6 +91,7 @@ amd_common_files = files(
'ac_vcn_av1_default.h',
'ac_vcn_dec.c',
'ac_vcn_enc.c',
'ac_uvd_dec.c',
'nir/ac_nir.c',
'nir/ac_nir.h',
'nir/ac_nir_helpers.h',