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drm/amdgpu: Add empty HDP flush function to JPEG v4.0.3

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JPEG v4.0.3 doesn't support HDP flush when RRMT is enabled. Instead,
mmsch fw will do the flush.

This change is necessary for JPEG v4.0.3, no need for backward compatibility

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2023-12-11 10:45:38 +05:30 committed by Alex Deucher
parent fec5f8e8c6
commit 585e3fdb36
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c
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@ -621,6 +621,13 @@ static uint64_t jpeg_v4_0_3_dec_ring_get_wptr(struct amdgpu_ring *ring)
ring->pipe ? (0x40 * ring->pipe - 0xc80) : 0);
}
static void jpeg_v4_0_3_ring_emit_hdp_flush(struct amdgpu_ring *ring)
{
/* JPEG engine access for HDP flush doesn't work when RRMT is enabled.
* This is a workaround to avoid any HDP flush through JPEG ring.
*/
}
/**
* jpeg_v4_0_3_dec_ring_set_wptr - set write pointer
*
@ -1072,6 +1079,7 @@ static const struct amdgpu_ring_funcs jpeg_v4_0_3_dec_ring_vm_funcs = {
.emit_ib = jpeg_v4_0_3_dec_ring_emit_ib,
.emit_fence = jpeg_v4_0_3_dec_ring_emit_fence,
.emit_vm_flush = jpeg_v4_0_3_dec_ring_emit_vm_flush,
.emit_hdp_flush = jpeg_v4_0_3_ring_emit_hdp_flush,
.test_ring = amdgpu_jpeg_dec_ring_test_ring,
.test_ib = amdgpu_jpeg_dec_ring_test_ib,
.insert_nop = jpeg_v4_0_3_dec_ring_nop,