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/*
* Copyright © 2014 Broadcom
*
* 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 (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 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.
*/
#ifdef USE_VC4_SIMULATOR
#include "util/u_memory.h"
#include "util/ralloc.h"
#include "vc4_screen.h"
#include "vc4_context.h"
#include "kernel/vc4_drv.h"
#include "vc4_simulator_validate.h"
#include "simpenrose/simpenrose.h"
#define OVERFLOW_SIZE (32 * 1024 * 1024)
static struct drm_gem_cma_object *
vc4_wrap_bo_with_cma(struct drm_device *dev, struct vc4_bo *bo)
{
struct vc4_context *vc4 = dev->vc4;
struct vc4_screen *screen = vc4->screen;
struct drm_gem_cma_object *obj = CALLOC_STRUCT(drm_gem_cma_object);
uint32_t size = align(bo->size, 4096);
obj->bo = bo;
obj->base.size = size;
obj->vaddr = screen->simulator_mem_base + dev->simulator_mem_next;
obj->paddr = simpenrose_hw_addr(obj->vaddr);
dev->simulator_mem_next += size;
dev->simulator_mem_next = align(dev->simulator_mem_next, 4096);
assert(dev->simulator_mem_next <= screen->simulator_mem_size);
return obj;
}
struct drm_gem_cma_object *
drm_gem_cma_create(struct drm_device *dev, size_t size)
{
struct vc4_context *vc4 = dev->vc4;
struct vc4_screen *screen = vc4->screen;
struct vc4_bo *bo = vc4_bo_alloc(screen, size, "simulator validate");
return vc4_wrap_bo_with_cma(dev, bo);
}
static int
vc4_simulator_pin_bos(struct drm_device *dev, struct exec_info *exec)
{
struct drm_vc4_submit_cl *args = exec->args;
struct vc4_context *vc4 = dev->vc4;
struct vc4_bo **bos = vc4->bo_pointers.base;
exec->bo_count = args->bo_handle_count;
exec->bo = calloc(exec->bo_count, sizeof(struct vc4_bo_exec_state));
for (int i = 0; i < exec->bo_count; i++) {
struct vc4_bo *bo = bos[i];
struct drm_gem_cma_object *obj = vc4_wrap_bo_with_cma(dev, bo);
#if 0
fprintf(stderr, "bo hindex %d: %s\n", i, bo->name);
#endif
vc4_bo_map(bo);
memcpy(obj->vaddr, bo->map, bo->size);
exec->bo[i].bo = obj;
}
return 0;
}
static int
vc4_simulator_unpin_bos(struct exec_info *exec)
{
for (int i = 0; i < exec->bo_count; i++) {
struct drm_gem_cma_object *obj = exec->bo[i].bo;
struct vc4_bo *bo = obj->bo;
memcpy(bo->map, obj->vaddr, bo->size);
free(obj);
}
free(exec->bo);
return 0;
}
int
vc4_simulator_flush(struct vc4_context *vc4, struct drm_vc4_submit_cl *args)
{
struct vc4_screen *screen = vc4->screen;
struct vc4_surface *csurf = vc4_surface(vc4->framebuffer.cbufs[0]);
struct vc4_resource *ctex = csurf ? vc4_resource(csurf->base.texture) : NULL;
uint32_t winsys_stride = ctex ? ctex->bo->simulator_winsys_stride : 0;
uint32_t sim_stride = ctex ? ctex->slices[0].stride : 0;
uint32_t row_len = MIN2(sim_stride, winsys_stride);
struct exec_info exec;
struct drm_device local_dev = {
.vc4 = vc4,
.simulator_mem_next = OVERFLOW_SIZE,
};
struct drm_device *dev = &local_dev;
int ret;
memset(&exec, 0, sizeof(exec));
if (ctex && ctex->bo->simulator_winsys_map) {
#if 0
fprintf(stderr, "%dx%d %d %d %d\n",
ctex->base.b.width0, ctex->base.b.height0,
winsys_stride,
sim_stride,
ctex->bo->size);
#endif
for (int y = 0; y < ctex->base.b.height0; y++) {
memcpy(ctex->bo->map + y * sim_stride,
ctex->bo->simulator_winsys_map + y * winsys_stride,
row_len);
}
}
exec.args = args;
ret = vc4_simulator_pin_bos(dev, &exec);
if (ret)
return ret;
ret = vc4_cl_validate(dev, &exec);
if (ret)
return ret;
int bfc = simpenrose_do_binning(exec.ct0ca, exec.ct0ea);
if (bfc != 1) {
fprintf(stderr, "Binning returned %d flushes, should be 1.\n",
bfc);
fprintf(stderr, "Relocated binning command list:\n");
vc4_dump_cl(screen->simulator_mem_base + exec.ct0ca,
exec.ct0ea - exec.ct0ca, false);
abort();
}
int rfc = simpenrose_do_rendering(exec.ct1ca, exec.ct1ea);
if (rfc != 1) {
fprintf(stderr, "Rendering returned %d frames, should be 1.\n",
rfc);
fprintf(stderr, "Relocated render command list:\n");
vc4_dump_cl(screen->simulator_mem_base + exec.ct1ca,
exec.ct1ea - exec.ct1ca, true);
abort();
}
ret = vc4_simulator_unpin_bos(&exec);
if (ret)
return ret;
vc4_bo_unreference(&exec.exec_bo->bo);
free(exec.exec_bo);
if (ctex && ctex->bo->simulator_winsys_map) {
for (int y = 0; y < ctex->base.b.height0; y++) {
memcpy(ctex->bo->simulator_winsys_map + y * winsys_stride,
ctex->bo->map + y * sim_stride,
row_len);
}
}
return 0;
}
void
vc4_simulator_init(struct vc4_screen *screen)
{
screen->simulator_mem_size = 256 * 1024 * 1024;
screen->simulator_mem_base = ralloc_size(screen,
screen->simulator_mem_size);
/* We supply our own memory so that we can have more aperture
* available (256MB instead of simpenrose's default 64MB).
*/
simpenrose_init_hardware_supply_mem(screen->simulator_mem_base,
screen->simulator_mem_size);
/* Carve out low memory for tile allocation overflow. The kernel
* should be automatically handling overflow memory setup on real
* hardware, but for simulation we just get one shot to set up enough
* overflow memory before execution. This overflow mem will be used
* up over the whole lifetime of simpenrose (not reused on each
* flush), so it had better be big.
*/
simpenrose_supply_overflow_mem(0, OVERFLOW_SIZE);
}
#endif /* USE_VC4_SIMULATOR */
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