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| author | Monk Liu <Monk.Liu@amd.com> | 2016-08-26 13:28:28 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-09-14 15:10:29 -0400 |
| commit | 753ad49c9fdfc732972b0d03f2889f473ed35e59 (patch) | |
| tree | 5b56188b3eb258fdcb167503979d657a0e9699be /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | |
| parent | 1db422de72c31fcf81f31311468a747aad389fa5 (diff) | |
| download | linux-753ad49c9fdfc732972b0d03f2889f473ed35e59.tar.gz linux-753ad49c9fdfc732972b0d03f2889f473ed35e59.tar.bz2 linux-753ad49c9fdfc732972b0d03f2889f473ed35e59.zip | |
drm/amdgpu:implement CONTEXT_CONTROL (v5)
v1:
for gfx8, use CONTEXT_CONTROL package to dynamically
skip preamble CEIB and other load_xxx command in sequence.
v2:
support GFX7 as well.
remove cntxcntl in compute ring funcs because CPC doesn't
support this packet.
v3: fix reduntant judgement in cntxcntl.
v4: some cleanups, don't change cs_submit()
v5: keep old MESA supported & bump up KMS version.
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Ack-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index 44915056297b..dca8b368728c 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -6076,6 +6076,35 @@ static void gfx_v8_ring_emit_sb(struct amdgpu_ring *ring) amdgpu_ring_write(ring, 0); } +static void gfx_v8_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags) +{ + uint32_t dw2 = 0; + + dw2 |= 0x80000000; /* set load_enable otherwise this package is just NOPs */ + if (flags & AMDGPU_HAVE_CTX_SWITCH) { + /* set load_global_config & load_global_uconfig */ + dw2 |= 0x8001; + /* set load_cs_sh_regs */ + dw2 |= 0x01000000; + /* set load_per_context_state & load_gfx_sh_regs for GFX */ + dw2 |= 0x10002; + + /* set load_ce_ram if preamble presented */ + if (AMDGPU_PREAMBLE_IB_PRESENT & flags) + dw2 |= 0x10000000; + } else { + /* still load_ce_ram if this is the first time preamble presented + * although there is no context switch happens. + */ + if (AMDGPU_PREAMBLE_IB_PRESENT_FIRST & flags) + dw2 |= 0x10000000; + } + + amdgpu_ring_write(ring, PACKET3(PACKET3_CONTEXT_CONTROL, 1)); + amdgpu_ring_write(ring, dw2); + amdgpu_ring_write(ring, 0); +} + static void gfx_v8_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev, enum amdgpu_interrupt_state state) { @@ -6258,6 +6287,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = { .insert_nop = amdgpu_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, .emit_switch_buffer = gfx_v8_ring_emit_sb, + .emit_cntxcntl = gfx_v8_ring_emit_cntxcntl, }; static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = { |