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/*
* Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Jerome Glisse
*/
#include "si_pipe.h"
static unsigned si_descriptor_list_cs_space(unsigned count, unsigned element_size)
{
/* Ensure we have enough space to start a new range in a hole */
assert(element_size >= 3);
/* 5 dwords for possible load to reinitialize when we have no preamble
* IB + 5 dwords for write to L2 + 3 bytes for every range written to
* CE RAM.
*/
return 5 + 5 + 3 + count * element_size;
}
static unsigned si_ce_needed_cs_space(void)
{
unsigned space = 0;
space += si_descriptor_list_cs_space(SI_NUM_CONST_BUFFERS, 4);
space += si_descriptor_list_cs_space(SI_NUM_SHADER_BUFFERS, 4);
space += si_descriptor_list_cs_space(SI_NUM_SAMPLERS, 16);
space += si_descriptor_list_cs_space(SI_NUM_IMAGES, 8);
space *= SI_NUM_SHADERS;
space += si_descriptor_list_cs_space(SI_NUM_RW_BUFFERS, 4);
/* Increment CE counter packet */
space += 2;
return space;
}
/* initialize */
void si_need_cs_space(struct si_context *ctx)
{
struct radeon_winsys_cs *cs = ctx->b.gfx.cs;
struct radeon_winsys_cs *ce_ib = ctx->ce_ib;
struct radeon_winsys_cs *dma = ctx->b.dma.cs;
/* Flush the DMA IB if it's not empty. */
if (radeon_emitted(dma, 0))
ctx->b.dma.flush(ctx, RADEON_FLUSH_ASYNC, NULL);
/* There are two memory usage counters in the winsys for all buffers
* that have been added (cs_add_buffer) and two counters in the pipe
* driver for those that haven't been added yet.
*/
if (unlikely(!ctx->b.ws->cs_memory_below_limit(ctx->b.gfx.cs,
ctx->b.vram, ctx->b.gtt))) {
ctx->b.gtt = 0;
ctx->b.vram = 0;
ctx->b.gfx.flush(ctx, RADEON_FLUSH_ASYNC, NULL);
return;
}
ctx->b.gtt = 0;
ctx->b.vram = 0;
/* If the CS is sufficiently large, don't count the space needed
* and just flush if there is not enough space left.
*/
if (!ctx->b.ws->cs_check_space(cs, 2048) ||
(ce_ib && !ctx->b.ws->cs_check_space(ce_ib, si_ce_needed_cs_space())))
ctx->b.gfx.flush(ctx, RADEON_FLUSH_ASYNC, NULL);
}
void si_context_gfx_flush(void *context, unsigned flags,
struct pipe_fence_handle **fence)
{
struct si_context *ctx = context;
struct radeon_winsys_cs *cs = ctx->b.gfx.cs;
struct radeon_winsys *ws = ctx->b.ws;
if (ctx->gfx_flush_in_progress)
return;
ctx->gfx_flush_in_progress = true;
if (!radeon_emitted(cs, ctx->b.initial_gfx_cs_size) &&
(!fence || ctx->last_gfx_fence)) {
if (fence)
ws->fence_reference(fence, ctx->last_gfx_fence);
if (!(flags & RADEON_FLUSH_ASYNC))
ws->cs_sync_flush(cs);
ctx->gfx_flush_in_progress = false;
return;
}
r600_preflush_suspend_features(&ctx->b);
ctx->b.flags |= SI_CONTEXT_CS_PARTIAL_FLUSH |
SI_CONTEXT_PS_PARTIAL_FLUSH;
/* DRM 3.1.0 doesn't flush TC for VI correctly. */
if (ctx->b.chip_class == VI && ctx->b.screen->info.drm_minor <= 1)
ctx->b.flags |= SI_CONTEXT_INV_GLOBAL_L2 |
SI_CONTEXT_INV_VMEM_L1;
si_emit_cache_flush(ctx, NULL);
/* force to keep tiling flags */
flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
if (ctx->trace_buf)
si_trace_emit(ctx);
if (ctx->is_debug) {
/* Save the IB for debug contexts. */
radeon_clear_saved_cs(&ctx->last_gfx);
radeon_save_cs(ws, cs, &ctx->last_gfx);
r600_resource_reference(&ctx->last_trace_buf, ctx->trace_buf);
r600_resource_reference(&ctx->trace_buf, NULL);
}
/* Flush the CS. */
ws->cs_flush(cs, flags, &ctx->last_gfx_fence);
if (fence)
ws->fence_reference(fence, ctx->last_gfx_fence);
/* Check VM faults if needed. */
if (ctx->screen->b.debug_flags & DBG_CHECK_VM)
si_check_vm_faults(ctx);
si_begin_new_cs(ctx);
ctx->gfx_flush_in_progress = false;
}
void si_begin_new_cs(struct si_context *ctx)
{
if (ctx->is_debug) {
uint32_t zero = 0;
/* Create a buffer used for writing trace IDs and initialize it to 0. */
assert(!ctx->trace_buf);
ctx->trace_buf = (struct r600_resource*)
pipe_buffer_create(ctx->b.b.screen, PIPE_BIND_CUSTOM,
PIPE_USAGE_STAGING, 4);
if (ctx->trace_buf)
pipe_buffer_write_nooverlap(&ctx->b.b, &ctx->trace_buf->b.b,
0, sizeof(zero), &zero);
ctx->trace_id = 0;
}
if (ctx->trace_buf)
si_trace_emit(ctx);
/* Flush read caches at the beginning of CS not flushed by the kernel. */
if (ctx->b.chip_class >= CIK)
ctx->b.flags |= SI_CONTEXT_INV_SMEM_L1 |
SI_CONTEXT_INV_ICACHE;
ctx->b.flags |= R600_CONTEXT_START_PIPELINE_STATS;
/* set all valid group as dirty so they get reemited on
* next draw command
*/
si_pm4_reset_emitted(ctx);
/* The CS initialization should be emitted before everything else. */
si_pm4_emit(ctx, ctx->init_config);
if (ctx->init_config_gs_rings)
si_pm4_emit(ctx, ctx->init_config_gs_rings);
if (ctx->ce_preamble_ib)
si_ce_enable_loads(ctx->ce_preamble_ib);
else if (ctx->ce_ib)
si_ce_enable_loads(ctx->ce_ib);
if (ctx->ce_preamble_ib)
si_ce_reinitialize_all_descriptors(ctx);
ctx->framebuffer.dirty_cbufs = (1 << 8) - 1;
ctx->framebuffer.dirty_zsbuf = true;
si_mark_atom_dirty(ctx, &ctx->framebuffer.atom);
si_mark_atom_dirty(ctx, &ctx->clip_regs);
si_mark_atom_dirty(ctx, &ctx->clip_state.atom);
si_mark_atom_dirty(ctx, &ctx->msaa_sample_locs);
si_mark_atom_dirty(ctx, &ctx->msaa_config);
si_mark_atom_dirty(ctx, &ctx->sample_mask.atom);
si_mark_atom_dirty(ctx, &ctx->cb_render_state);
si_mark_atom_dirty(ctx, &ctx->blend_color.atom);
si_mark_atom_dirty(ctx, &ctx->db_render_state);
si_mark_atom_dirty(ctx, &ctx->stencil_ref.atom);
si_mark_atom_dirty(ctx, &ctx->spi_map);
si_mark_atom_dirty(ctx, &ctx->b.streamout.enable_atom);
si_mark_atom_dirty(ctx, &ctx->b.render_cond_atom);
si_all_descriptors_begin_new_cs(ctx);
ctx->b.scissors.dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
ctx->b.viewports.dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
si_mark_atom_dirty(ctx, &ctx->b.scissors.atom);
si_mark_atom_dirty(ctx, &ctx->b.viewports.atom);
r600_postflush_resume_features(&ctx->b);
assert(!ctx->b.gfx.cs->prev_dw);
ctx->b.initial_gfx_cs_size = ctx->b.gfx.cs->current.cdw;
/* Invalidate various draw states so that they are emitted before
* the first draw call. */
si_invalidate_draw_sh_constants(ctx);
ctx->last_primitive_restart_en = -1;
ctx->last_restart_index = SI_RESTART_INDEX_UNKNOWN;
ctx->last_gs_out_prim = -1;
ctx->last_prim = -1;
ctx->last_multi_vgt_param = -1;
ctx->last_ls_hs_config = -1;
ctx->last_rast_prim = -1;
ctx->last_sc_line_stipple = ~0;
ctx->emit_scratch_reloc = true;
ctx->last_ls = NULL;
ctx->last_tcs = NULL;
ctx->last_tes_sh_base = -1;
ctx->last_num_tcs_input_cp = -1;
ctx->cs_shader_state.initialized = false;
}
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