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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
* Copyright 2010 Marek Olšák <maraeo@gmail.com>
*
* 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. */
#include "draw/draw_context.h"
#include "draw/draw_private.h"
#include "util/u_simple_list.h"
#include "util/u_upload_mgr.h"
#include "os/os_time.h"
#include "r300_context.h"
#include "r300_cs.h"
#include "r300_emit.h"
static void r300_flush_and_cleanup(struct r300_context *r300, unsigned flags)
{
struct r300_atom *atom;
r300_emit_hyperz_end(r300);
r300_emit_query_end(r300);
if (r300->screen->caps.is_r500)
r500_emit_index_bias(r300, 0);
/* The DDX doesn't set these regs. */
if (r300->screen->info.drm_minor >= 6) {
CS_LOCALS(r300);
OUT_CS_REG_SEQ(R300_GB_MSPOS0, 2);
OUT_CS(0x66666666);
OUT_CS(0x6666666);
}
r300->flush_counter++;
r300->rws->cs_flush(r300->cs, flags, 0);
r300->dirty_hw = 0;
/* New kitchen sink, baby. */
foreach_atom(r300, atom) {
if (atom->state || atom->allow_null_state) {
r300_mark_atom_dirty(r300, atom);
}
}
r300->vertex_arrays_dirty = TRUE;
/* Unmark HWTCL state for SWTCL. */
if (!r300->screen->caps.has_tcl) {
r300->vs_state.dirty = FALSE;
r300->vs_constants.dirty = FALSE;
r300->clip_state.dirty = FALSE;
}
}
void r300_flush(struct pipe_context *pipe,
unsigned flags,
struct pipe_fence_handle **fence)
{
struct r300_context *r300 = r300_context(pipe);
struct pb_buffer **rfence = (struct pb_buffer**)fence;
if (r300->screen->info.drm_minor >= 12) {
flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
}
if (rfence) {
/* Create a fence, which is a dummy BO. */
*rfence = r300->rws->buffer_create(r300->rws, 1, 1, TRUE,
RADEON_DOMAIN_GTT);
/* Add the fence as a dummy relocation. */
r300->rws->cs_add_reloc(r300->cs,
r300->rws->buffer_get_cs_handle(*rfence),
RADEON_USAGE_READWRITE, RADEON_DOMAIN_GTT);
}
if (r300->dirty_hw) {
r300_flush_and_cleanup(r300, flags);
} else {
if (rfence) {
/* We have to create a fence object, but the command stream is empty
* and we cannot emit an empty CS. Let's write to some reg. */
CS_LOCALS(r300);
OUT_CS_REG(RB3D_COLOR_CHANNEL_MASK, 0);
r300->rws->cs_flush(r300->cs, flags, 0);
} else {
/* Even if hw is not dirty, we should at least reset the CS in case
* the space checking failed for the first draw operation. */
r300->rws->cs_flush(r300->cs, flags, 0);
}
}
/* Update Hyper-Z status. */
if (r300->hyperz_enabled) {
/* If there was a Z clear, keep Hyper-Z access. */
if (r300->num_z_clears) {
r300->hyperz_time_of_last_flush = os_time_get();
r300->num_z_clears = 0;
} else if (r300->hyperz_time_of_last_flush - os_time_get() > 2000000) {
/* If there hasn't been a Z clear for 2 seconds, revoke Hyper-Z access. */
r300->hiz_in_use = FALSE;
/* Decompress the Z buffer. */
if (r300->zmask_in_use) {
if (r300->locked_zbuffer) {
r300_decompress_zmask_locked(r300);
} else {
r300_decompress_zmask(r300);
}
r300_flush_and_cleanup(r300, flags);
}
/* Revoke Hyper-Z access, so that some other process can take it. */
r300->rws->cs_request_feature(r300->cs, RADEON_FID_R300_HYPERZ_ACCESS,
FALSE);
r300->hyperz_enabled = FALSE;
}
}
}
static void r300_flush_wrapped(struct pipe_context *pipe,
struct pipe_fence_handle **fence,
enum pipe_flush_flags flags)
{
r300_flush(pipe,
flags & PIPE_FLUSH_END_OF_FRAME ? RADEON_FLUSH_END_OF_FRAME : 0,
fence);
}
void r300_init_flush_functions(struct r300_context* r300)
{
r300->context.flush = r300_flush_wrapped;
}
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