[AMD Official Use Only - AMD Internal Distribution Only] Series is
Reviewed-by: Hawking Zhang <[email protected]> Regards, Hawking -----Original Message----- From: amd-gfx <[email protected]> On Behalf Of Jane Jian Sent: Tuesday, July 16, 2024 15:59 To: Lazar, Lijo <[email protected]>; Chang, HaiJun <[email protected]>; Zhao, Victor <[email protected]> Cc: [email protected]; Lazar, Lijo <[email protected]>; Jian, Jane <[email protected]> Subject: [PATCH 1/3] drm/amdgpu: Add empty HDP flush function to JPEG v4.0.3 From: Lijo Lazar <[email protected]> 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 <[email protected]> Signed-off-by: Jane Jian <[email protected]> --- drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c index 04d8966423de..30a143ab592d 100644 --- a/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c +++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c @@ -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, -- 2.34.1
