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radv/gfx10: don't initialize VGT_INSTANCE_STEP_RATE_0

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Only gfx9 and older use it to get InstanceID in VGPR1.
Ported from RadeonSI.

Cc: 19.2 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2019-08-21 10:50:48 +02:00
parent 7d1c091143
commit 0813c27d8d
1 changed files with 2 additions and 1 deletions
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3
src/amd/vulkan/si_cmd_buffer.c
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@ -192,7 +192,8 @@ si_emit_graphics(struct radv_physical_device *physical_device,
radeon_set_context_reg(cs, R_028B98_VGT_STRMOUT_BUFFER_CONFIG, 0x0);
}
radeon_set_context_reg(cs, R_028AA0_VGT_INSTANCE_STEP_RATE_0, 1);
if (physical_device->rad_info.chip_class <= GFX9)
radeon_set_context_reg(cs, R_028AA0_VGT_INSTANCE_STEP_RATE_0, 1);
if (!physical_device->has_clear_state)
radeon_set_context_reg(cs, R_028AB8_VGT_VTX_CNT_EN, 0x0);
if (physical_device->rad_info.chip_class < GFX7)