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Revert "ampere iter2: HEVC EXT_SPS_ST_RPS / _LT_RPS dynamic-array submission (VDPU381)"

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This reverts commit f61f736380.
This commit is contained in:
Claude (noether)
2026-05-17 09:48:29 +00:00
parent f61f736380
commit a8a91d92d6
4 changed files with 3 additions and 135 deletions
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include/hevc-ctrls.h
+1 -34
View File
@@ -2,41 +2,8 @@
/* Fourier-local override: HEVC controls are upstream since linux-media
* 6.6+, so defer to the kernel's linux/v4l2-controls.h instead of
* duplicating the struct definitions (duplication causes redefinition
* errors on newer linux-api-headers).
*
* iter2 (ampere-fourier, 2026-05-17): the new EXT_SPS_ST_RPS / _LT_RPS
* controls landed in linux-media v8 series (linux-mmind-v7.0 has them)
* but linux-api-headers <7.0 doesn't. Ship guarded fallback definitions
* so the backend builds on older Arch hosts. Newer headers no-op these.
*/
* errors on newer linux-api-headers). */
#ifndef _LIBVA_V4L2_REQUEST_HEVC_CTRLS_H
#define _LIBVA_V4L2_REQUEST_HEVC_CTRLS_H
#include <linux/v4l2-controls.h>
#ifndef V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS
#define V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS (V4L2_CID_CODEC_STATELESS_BASE + 408)
#define V4L2_CID_STATELESS_HEVC_EXT_SPS_LT_RPS (V4L2_CID_CODEC_STATELESS_BASE + 409)
#define V4L2_HEVC_EXT_SPS_ST_RPS_FLAG_INTER_REF_PIC_SET_PRED 0x1
#define V4L2_HEVC_EXT_SPS_LT_RPS_FLAG_USED_LT 0x1
struct v4l2_ctrl_hevc_ext_sps_st_rps {
__u8 delta_idx_minus1;
__u8 delta_rps_sign;
__u8 num_negative_pics;
__u8 num_positive_pics;
__u32 used_by_curr_pic;
__u32 use_delta_flag;
__u16 abs_delta_rps_minus1;
__u16 delta_poc_s0_minus1[16];
__u16 delta_poc_s1_minus1[16];
__u16 flags;
};
struct v4l2_ctrl_hevc_ext_sps_lt_rps {
__u16 lt_ref_pic_poc_lsb_sps;
__u16 flags;
};
#endif /* V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS */
#endif
src/context.c
-22
View File
@@ -339,28 +339,6 @@ VAStatus RequestCreateContext(VADriverContextP context, VAConfigID config_id,
}
}
/*
* iter2 (ampere-fourier): probe for HEVC EXT_SPS_ST_RPS dynamic-array
* control. Present on VDPU381/383 (RK3588), absent on legacy RK3399
* rkvdec. Result drives h265_set_controls to append empty-but-allocated
* EXT_SPS_ST_RPS + _LT_RPS controls — required to stop a kernel
* out-of-bounds OOPS in rkvdec_hevc_prepare_hw_st_rps when the
* framework's dynamic-array init (1 zeroed element) is undersized for
* streams with num_short_term_ref_pic_sets > 1.
*
* Probed once per driver lifetime; flag persists (gating is HEVC-only
* so cross-codec leakage cannot occur).
*/
if ((config_object->profile == VAProfileHEVCMain ||
config_object->profile == VAProfileHEVCMain10) &&
!driver_data->has_ext_sps_rps) {
struct v4l2_query_ext_ctrl qec;
if (v4l2_query_ext_ctrl(driver_data->video_fd,
V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS,
&qec) == 0)
driver_data->has_ext_sps_rps = true;
}
destination_planes_count = video_format->planes_count;
/*
src/h265.c
+2 -65
View File
@@ -77,9 +77,7 @@
#include <sys/mman.h>
#include <linux/videodev2.h>
/* iter2: use local hevc-ctrls shim — adds EXT_SPS_ST_RPS / _LT_RPS
* fallback defs guarded by #ifndef when linux-api-headers < 7.0. */
#include <hevc-ctrls.h>
#include <linux/v4l2-controls.h>
#include "utils.h"
#include "v4l2.h"
@@ -601,9 +599,7 @@ int h265_set_controls(struct request_data *driver_data,
struct v4l2_ctrl_hevc_scaling_matrix scaling_matrix;
struct v4l2_ctrl_hevc_slice_params *slice_params_array = NULL;
struct v4l2_ext_control controls[7];
struct v4l2_ctrl_hevc_ext_sps_st_rps *ext_st_rps = NULL;
struct v4l2_ctrl_hevc_ext_sps_lt_rps *ext_lt_rps = NULL;
struct v4l2_ext_control controls[5];
unsigned int n = 0;
unsigned int i;
unsigned int prefix_bytes;
@@ -694,70 +690,11 @@ int h265_set_controls(struct request_data *driver_data,
.size = sizeof(decode_params),
};
/*
* iter2 (ampere-fourier): on VDPU381/383 (has_ext_sps_rps probed at
* CreateContext via VIDIOC_QUERY_EXT_CTRL), submit EXT_SPS_ST_RPS +
* EXT_SPS_LT_RPS as zero-initialized dynamic arrays sized by the
* VAAPI SPS counts (capped at H.265 §7.4.3.2 spec maxima: ST 64, LT
* 32). The kernel registered these dynamic-array controls with
* cfg.dims = { 65 } (vdpu38x_hevc_ctrl_descs); the framework
* init-allocates 1 zeroed element. When num_short_term_ref_pic_sets
* > 1, rkvdec_hevc_prepare_hw_st_rps iterates idx 0..N-1 and the
* single-element kernel allocation triggers an out-of-bounds OOPS.
* Submitting an N-element control extends the framework allocation.
*
* Decode correctness for non-IDR content: VAAPI does NOT expose the
* per-set st_ref_pic_set syntax elements (delta_idx_minus1 etc.) —
* confirmed in va_dec_hevc.h. Submission of all-zero entries gives
* empty inter-pred RPS per set, which is correct for IDR-only
* streams and incorrect for streams with inter-pred RPS dependence.
* iter2 acceptance: stop the OOPS. Decode-correctness for inter-RPS
* streams is a known follow-up.
*/
if (driver_data->has_ext_sps_rps) {
unsigned int n_st = picture->num_short_term_ref_pic_sets;
unsigned int n_lt = picture->num_long_term_ref_pic_sps;
if (n_st > 64)
n_st = 64;
if (n_lt > 32)
n_lt = 32;
if (n_st == 0)
n_st = 1; /* dynamic-array minimum; kernel rejects 0 */
if (n_lt == 0)
n_lt = 1;
ext_st_rps = calloc(n_st,
sizeof(struct v4l2_ctrl_hevc_ext_sps_st_rps));
ext_lt_rps = calloc(n_lt,
sizeof(struct v4l2_ctrl_hevc_ext_sps_lt_rps));
if (ext_st_rps == NULL || ext_lt_rps == NULL) {
free(slice_params_array);
free(ext_st_rps);
free(ext_lt_rps);
return VA_STATUS_ERROR_ALLOCATION_FAILED;
}
controls[n++] = (struct v4l2_ext_control){
.id = V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS,
.ptr = ext_st_rps,
.size = n_st *
sizeof(struct v4l2_ctrl_hevc_ext_sps_st_rps),
};
controls[n++] = (struct v4l2_ext_control){
.id = V4L2_CID_STATELESS_HEVC_EXT_SPS_LT_RPS,
.ptr = ext_lt_rps,
.size = n_lt *
sizeof(struct v4l2_ctrl_hevc_ext_sps_lt_rps),
};
}
rc = v4l2_set_controls(driver_data->video_fd,
surface_object->request_fd,
controls, n);
free(slice_params_array);
free(ext_st_rps);
free(ext_lt_rps);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
src/request.h
-14
View File
@@ -144,20 +144,6 @@ struct request_data {
* Reset to false at DestroyContext.
*/
bool is_10bit;
/*
* iter2 (ampere-fourier): rkvdec on this host exposes the
* V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS dynamic-array control
* (VDPU381/383 path). When true, h265_set_controls appends
* EXT_SPS_ST_RPS + EXT_SPS_LT_RPS (zero-initialized arrays sized
* by VAAPI's count fields, capped at H.265 spec maxima 64/32).
* Required to prevent rkvdec_hevc_prepare_hw_st_rps out-of-bounds
* kernel OOPS when num_short_term_ref_pic_sets > 1.
* Probed at first HEVC CreateContext via VIDIOC_QUERY_EXT_CTRL.
* Persists for driver lifetime (gated solely by HEVC-only code
* path, so cross-codec leakage cannot occur).
*/
bool has_ext_sps_rps;
};
VAStatus VA_DRIVER_INIT_FUNC(VADriverContextP context);