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/*
* Copyright 2013 Nouveau Project
*
* 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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: Christoph Bumiller, Samuel Pitoiset
*/
#include "nvc0/nvc0_context.h"
#include "nvc0/nvc0_compute.h"
int
nvc0_screen_compute_setup(struct nvc0_screen *screen,
struct nouveau_pushbuf *push)
{
struct nouveau_object *chan = screen->base.channel;
struct nouveau_device *dev = screen->base.device;
uint32_t obj_class;
int ret;
int i;
switch (dev->chipset & ~0xf) {
case 0xc0:
if (dev->chipset == 0xc8)
obj_class = NVC8_COMPUTE_CLASS;
else
obj_class = NVC0_COMPUTE_CLASS;
break;
case 0xd0:
obj_class = NVC0_COMPUTE_CLASS;
break;
default:
NOUVEAU_ERR("unsupported chipset: NV%02x\n", dev->chipset);
return -1;
}
ret = nouveau_object_new(chan, 0xbeef90c0, obj_class, NULL, 0,
&screen->compute);
if (ret) {
NOUVEAU_ERR("Failed to allocate compute object: %d\n", ret);
return ret;
}
ret = nouveau_bo_new(dev, NOUVEAU_BO_VRAM, 0, 1 << 12, NULL,
&screen->parm);
if (ret)
return ret;
BEGIN_NVC0(push, SUBC_COMPUTE(NV01_SUBCHAN_OBJECT), 1);
PUSH_DATA (push, screen->compute->oclass);
/* hardware limit */
BEGIN_NVC0(push, NVC0_COMPUTE(MP_LIMIT), 1);
PUSH_DATA (push, screen->mp_count);
BEGIN_NVC0(push, NVC0_COMPUTE(CALL_LIMIT_LOG), 1);
PUSH_DATA (push, 0xf);
BEGIN_NVC0(push, SUBC_COMPUTE(0x02a0), 1);
PUSH_DATA (push, 0x8000);
/* global memory setup */
BEGIN_NVC0(push, SUBC_COMPUTE(0x02c4), 1);
PUSH_DATA (push, 0);
BEGIN_NIC0(push, NVC0_COMPUTE(GLOBAL_BASE), 0x100);
for (i = 0; i <= 0xff; i++)
PUSH_DATA (push, (0xc << 28) | (i << 16) | i);
BEGIN_NVC0(push, SUBC_COMPUTE(0x02c4), 1);
PUSH_DATA (push, 1);
/* local memory and cstack setup */
BEGIN_NVC0(push, NVC0_COMPUTE(TEMP_ADDRESS_HIGH), 2);
PUSH_DATAh(push, screen->tls->offset);
PUSH_DATA (push, screen->tls->offset);
BEGIN_NVC0(push, NVC0_COMPUTE(TEMP_SIZE_HIGH), 2);
PUSH_DATAh(push, screen->tls->size);
PUSH_DATA (push, screen->tls->size);
BEGIN_NVC0(push, NVC0_COMPUTE(WARP_TEMP_ALLOC), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, NVC0_COMPUTE(LOCAL_BASE), 1);
PUSH_DATA (push, 1 << 24);
/* shared memory setup */
BEGIN_NVC0(push, NVC0_COMPUTE(CACHE_SPLIT), 1);
PUSH_DATA (push, NVC0_COMPUTE_CACHE_SPLIT_48K_SHARED_16K_L1);
BEGIN_NVC0(push, NVC0_COMPUTE(SHARED_BASE), 1);
PUSH_DATA (push, 2 << 24);
BEGIN_NVC0(push, NVC0_COMPUTE(SHARED_SIZE), 1);
PUSH_DATA (push, 0);
/* code segment setup */
BEGIN_NVC0(push, NVC0_COMPUTE(CODE_ADDRESS_HIGH), 2);
PUSH_DATAh(push, screen->text->offset);
PUSH_DATA (push, screen->text->offset);
/* bind parameters buffer */
BEGIN_NVC0(push, NVC0_COMPUTE(CB_SIZE), 3);
PUSH_DATA (push, screen->parm->size);
PUSH_DATAh(push, screen->parm->offset);
PUSH_DATA (push, screen->parm->offset);
BEGIN_NVC0(push, NVC0_COMPUTE(CB_BIND), 1);
PUSH_DATA (push, (0 << 8) | 1);
/* TODO: textures & samplers */
return 0;
}
boolean
nvc0_compute_validate_program(struct nvc0_context *nvc0)
{
struct nvc0_program *prog = nvc0->compprog;
if (prog->mem)
return TRUE;
if (!prog->translated) {
prog->translated = nvc0_program_translate(
prog, nvc0->screen->base.device->chipset);
if (!prog->translated)
return FALSE;
}
if (unlikely(!prog->code_size))
return FALSE;
if (likely(prog->code_size)) {
if (nvc0_program_upload_code(nvc0, prog)) {
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
BEGIN_NVC0(push, NVC0_COMPUTE(FLUSH), 1);
PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CODE);
return TRUE;
}
}
return FALSE;
}
static boolean
nvc0_compute_state_validate(struct nvc0_context *nvc0)
{
if (!nvc0_compute_validate_program(nvc0))
return FALSE;
/* TODO: textures, samplers, surfaces, global memory buffers */
nvc0_bufctx_fence(nvc0, nvc0->bufctx_cp, FALSE);
nouveau_pushbuf_bufctx(nvc0->base.pushbuf, nvc0->bufctx_cp);
if (unlikely(nouveau_pushbuf_validate(nvc0->base.pushbuf)))
return FALSE;
if (unlikely(nvc0->state.flushed))
nvc0_bufctx_fence(nvc0, nvc0->bufctx_cp, TRUE);
return TRUE;
}
static void
nvc0_compute_upload_input(struct nvc0_context *nvc0, const void *input)
{
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
struct nvc0_screen *screen = nvc0->screen;
struct nvc0_program *cp = nvc0->compprog;
if (cp->parm_size) {
BEGIN_NVC0(push, NVC0_COMPUTE(CB_SIZE), 3);
PUSH_DATA (push, align(cp->parm_size, 0x100));
PUSH_DATAh(push, screen->parm->offset);
PUSH_DATA (push, screen->parm->offset);
BEGIN_NVC0(push, NVC0_COMPUTE(CB_BIND), 1);
PUSH_DATA (push, (0 << 8) | 1);
/* NOTE: size is limited to 4 KiB, which is < NV04_PFIFO_MAX_PACKET_LEN */
BEGIN_1IC0(push, NVC0_COMPUTE(CB_POS), 1 + cp->parm_size / 4);
PUSH_DATA (push, 0);
PUSH_DATAp(push, input, cp->parm_size / 4);
BEGIN_NVC0(push, NVC0_COMPUTE(FLUSH), 1);
PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CB);
}
}
void
nvc0_launch_grid(struct pipe_context *pipe,
const uint *block_layout, const uint *grid_layout,
uint32_t label,
const void *input)
{
struct nvc0_context *nvc0 = nvc0_context(pipe);
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
struct nvc0_program *cp = nvc0->compprog;
unsigned s, i;
int ret;
ret = !nvc0_compute_state_validate(nvc0);
if (ret)
goto out;
nvc0_compute_upload_input(nvc0, input);
BEGIN_NVC0(push, NVC0_COMPUTE(CP_START_ID), 1);
PUSH_DATA (push, nvc0_program_symbol_offset(cp, label));
BEGIN_NVC0(push, NVC0_COMPUTE(LOCAL_POS_ALLOC), 3);
PUSH_DATA (push, align(cp->cp.lmem_size, 0x10));
PUSH_DATA (push, 0);
PUSH_DATA (push, 0x800); /* WARP_CSTACK_SIZE */
BEGIN_NVC0(push, NVC0_COMPUTE(SHARED_SIZE), 3);
PUSH_DATA (push, align(cp->cp.smem_size, 0x100));
PUSH_DATA (push, block_layout[0] * block_layout[1] * block_layout[2]);
PUSH_DATA (push, cp->num_barriers);
BEGIN_NVC0(push, NVC0_COMPUTE(CP_GPR_ALLOC), 1);
PUSH_DATA (push, cp->num_gprs);
/* grid/block setup */
BEGIN_NVC0(push, NVC0_COMPUTE(GRIDDIM_YX), 2);
PUSH_DATA (push, (grid_layout[1] << 16) | grid_layout[0]);
PUSH_DATA (push, grid_layout[2]);
BEGIN_NVC0(push, NVC0_COMPUTE(BLOCKDIM_YX), 2);
PUSH_DATA (push, (block_layout[1] << 16) | block_layout[0]);
PUSH_DATA (push, block_layout[2]);
/* launch preliminary setup */
BEGIN_NVC0(push, NVC0_COMPUTE(GRIDID), 1);
PUSH_DATA (push, 0x1);
BEGIN_NVC0(push, SUBC_COMPUTE(0x036c), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, NVC0_COMPUTE(FLUSH), 1);
PUSH_DATA (push, NVC0_COMPUTE_FLUSH_GLOBAL | NVC0_COMPUTE_FLUSH_UNK8);
/* kernel launching */
BEGIN_NVC0(push, NVC0_COMPUTE(COMPUTE_BEGIN), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, SUBC_COMPUTE(0x0a08), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, NVC0_COMPUTE(LAUNCH), 1);
PUSH_DATA (push, 0x1000);
BEGIN_NVC0(push, NVC0_COMPUTE(COMPUTE_END), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, SUBC_COMPUTE(0x0360), 1);
PUSH_DATA (push, 0x1);
/* rebind all the 3D constant buffers
* (looks like binding a CB on COMPUTE clobbers 3D state) */
nvc0->dirty |= NVC0_NEW_CONSTBUF;
for (s = 0; s < 6; s++) {
for (i = 0; i < NVC0_MAX_PIPE_CONSTBUFS; i++)
if (nvc0->constbuf[s][i].u.buf)
nvc0->constbuf_dirty[s] |= 1 << i;
}
memset(nvc0->state.uniform_buffer_bound, 0,
sizeof(nvc0->state.uniform_buffer_bound));
out:
if (ret)
NOUVEAU_ERR("Failed to launch grid !\n");
}
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