diff options
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_state.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 12936725803..32e59515b0e 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -1636,6 +1636,59 @@ out: rctx->ps_samplers.n_samplers = count; } +/* + * Constants + */ +static void si_set_constant_buffer(struct pipe_context *ctx, uint shader, uint index, + struct pipe_constant_buffer *cb) +{ + struct r600_context *rctx = (struct r600_context *)ctx; + struct r600_resource *rbuffer = cb ? r600_resource(cb->buffer) : NULL; + struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state); + uint64_t va_offset; + uint32_t offset; + + /* Note that the state tracker can unbind constant buffers by + * passing NULL here. + */ + if (cb == NULL) { + FREE(pm4); + return; + } + + si_pm4_inval_shader_cache(pm4); + + if (cb->user_buffer) + r600_upload_const_buffer(rctx, &rbuffer, cb->user_buffer, cb->buffer_size, &offset); + else + offset = 0; + va_offset = r600_resource_va(ctx->screen, (void*)rbuffer); + va_offset += offset; + + si_pm4_add_bo(pm4, rbuffer, RADEON_USAGE_READ); + + switch (shader) { + case PIPE_SHADER_VERTEX: + si_pm4_set_reg(pm4, R_00B130_SPI_SHADER_USER_DATA_VS_0, va_offset); + si_pm4_set_reg(pm4, R_00B134_SPI_SHADER_USER_DATA_VS_1, va_offset >> 32); + si_pm4_set_state(rctx, vs_const, pm4); + break; + + case PIPE_SHADER_FRAGMENT: + si_pm4_set_reg(pm4, R_00B030_SPI_SHADER_USER_DATA_PS_0, va_offset); + si_pm4_set_reg(pm4, R_00B034_SPI_SHADER_USER_DATA_PS_1, va_offset >> 32); + si_pm4_set_state(rctx, ps_const, pm4); + break; + + default: + R600_ERR("unsupported %d\n", shader); + return; + } + + if (cb->buffer != &rbuffer->b.b) + pipe_resource_reference((struct pipe_resource**)&rbuffer, NULL); +} + void si_init_state_functions(struct r600_context *rctx) { rctx->context.create_blend_state = si_create_blend_state; @@ -1671,6 +1724,8 @@ void si_init_state_functions(struct r600_context *rctx) rctx->context.set_vertex_sampler_views = si_set_vs_sampler_view; rctx->context.set_fragment_sampler_views = si_set_ps_sampler_view; + + rctx->context.set_constant_buffer = si_set_constant_buffer; } void si_init_config(struct r600_context *rctx) |