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drm/amdgpu: limit AV1 to the first instance on VCN4 encode

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AV1 is only supported on the first instance.
Added vcn_v4_0_enc_find_ib_param() to help search for an IB param.

Signed-off-by: David (Ming Qiang) Wu <David.Wu3@amd.com>
Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David (Ming Qiang) Wu 2023-01-13 13:44:26 -05:00 • committed by Alex Deucher
parent ae284577d8
commit f823323b4a
1 changed files with 44 additions and 14 deletions
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58
drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
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@ -1710,7 +1710,7 @@ static int vcn_v4_0_dec_msg(struct amdgpu_cs_parser *p, struct amdgpu_job *job,
create = ptr + addr + offset - start;
/* H246, HEVC and VP9 can run on any instance */
/* H264, HEVC and VP9 can run on any instance */
if (create[0] == 0x7 || create[0] == 0x10 || create[0] == 0x11)
continue;
@ -1724,7 +1724,29 @@ out:
return r;
}
#define RADEON_VCN_ENGINE_TYPE_DECODE (0x00000003)
#define RADEON_VCN_ENGINE_TYPE_ENCODE (0x00000002)
#define RADEON_VCN_ENGINE_TYPE_DECODE (0x00000003)
#define RADEON_VCN_ENGINE_INFO (0x30000001)
#define RADEON_VCN_ENGINE_INFO_MAX_OFFSET 16
#define RENCODE_ENCODE_STANDARD_AV1 2
#define RENCODE_IB_PARAM_SESSION_INIT 0x00000003
#define RENCODE_IB_PARAM_SESSION_INIT_MAX_OFFSET 64
/* return the offset in ib if id is found, -1 otherwise
* to speed up the searching we only search upto max_offset
*/
static int vcn_v4_0_enc_find_ib_param(struct amdgpu_ib *ib, uint32_t id, int max_offset)
{
int i;
for (i = 0; i < ib->length_dw && i < max_offset && ib->ptr[i] >= 8; i += ib->ptr[i]/4) {
if (ib->ptr[i + 1] == id)
return i;
}
return -1;
}
static int vcn_v4_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
struct amdgpu_job *job,
@ -1734,27 +1756,35 @@ static int vcn_v4_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
struct amdgpu_vcn_decode_buffer *decode_buffer;
uint64_t addr;
uint32_t val;
int idx;
/* The first instance can decode anything */
if (!ring->me)
return 0;
/* unified queue ib header has 8 double words. */
if (ib->length_dw < 8)
/* RADEON_VCN_ENGINE_INFO is at the top of ib block */
idx = vcn_v4_0_enc_find_ib_param(ib, RADEON_VCN_ENGINE_INFO,
RADEON_VCN_ENGINE_INFO_MAX_OFFSET);
if (idx < 0) /* engine info is missing */
return 0;
val = amdgpu_ib_get_value(ib, 6); //RADEON_VCN_ENGINE_TYPE
if (val != RADEON_VCN_ENGINE_TYPE_DECODE)
return 0;
val = amdgpu_ib_get_value(ib, idx + 2); /* RADEON_VCN_ENGINE_TYPE */
if (val == RADEON_VCN_ENGINE_TYPE_DECODE) {
decode_buffer = (struct amdgpu_vcn_decode_buffer *)&ib->ptr[idx + 6];
decode_buffer = (struct amdgpu_vcn_decode_buffer *)&ib->ptr[10];
if (!(decode_buffer->valid_buf_flag & 0x1))
return 0;
if (!(decode_buffer->valid_buf_flag & 0x1))
return 0;
addr = ((u64)decode_buffer->msg_buffer_address_hi) << 32 |
decode_buffer->msg_buffer_address_lo;
return vcn_v4_0_dec_msg(p, job, addr);
addr = ((u64)decode_buffer->msg_buffer_address_hi) << 32 |
decode_buffer->msg_buffer_address_lo;
return vcn_v4_0_dec_msg(p, job, addr);
} else if (val == RADEON_VCN_ENGINE_TYPE_ENCODE) {
idx = vcn_v4_0_enc_find_ib_param(ib, RENCODE_IB_PARAM_SESSION_INIT,
RENCODE_IB_PARAM_SESSION_INIT_MAX_OFFSET);
if (idx >= 0 && ib->ptr[idx + 2] == RENCODE_ENCODE_STANDARD_AV1)
return vcn_v4_0_limit_sched(p, job);
}
return 0;
}
static const struct amdgpu_ring_funcs vcn_v4_0_unified_ring_vm_funcs = {