blob: 9b19455bcfd8acb8efc52ae046dae25e05986dee [file] [log] [blame]
/*
* Copyright © 2009,2012,2013 Intel Corporation
*
* 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Chris Wilson <chris@chris-wilson.co.uk>
* Daniel Vetter <daniel.vetter@ffwll.ch>
*
*/
/** @file gem_concurrent.c
*
* This is a test of pread/pwrite/mmap behavior when writing to active
* buffers.
*
* Based on gem_gtt_concurrent_blt.
*/
#include "igt.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <drm.h>
#include "intel_bufmgr.h"
IGT_TEST_DESCRIPTION("Test of pread/pwrite/mmap behavior when writing to active"
" buffers.");
int fd, devid, gen;
int all;
int pass;
struct create {
const char *name;
void (*require)(const struct create *, unsigned);
drm_intel_bo *(*create)(drm_intel_bufmgr *, uint64_t size);
};
struct size {
const char *name;
int width, height;
};
struct buffers {
const char *name;
const struct create *create;
const struct access_mode *mode;
const struct size *size;
drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
drm_intel_bo **src, **dst;
drm_intel_bo *snoop, *spare;
uint32_t *tmp;
int width, height, npixels;
int count, num_buffers;
};
#define MIN_BUFFERS 3
static void blt_copy_bo(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src);
static void
nop_release_bo(drm_intel_bo *bo)
{
drm_intel_bo_unreference(bo);
}
static void
prw_set_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
for (int i = 0; i < b->npixels; i++)
b->tmp[i] = val;
drm_intel_bo_subdata(bo, 0, 4*b->npixels, b->tmp);
}
static void
prw_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
uint32_t *vaddr;
vaddr = b->tmp;
do_or_die(drm_intel_bo_get_subdata(bo, 0, 4*b->npixels, vaddr));
for (int i = 0; i < b->npixels; i++)
igt_assert_eq_u32(vaddr[i], val);
}
#define pixel(y, width) ((y)*(width) + (((y) + pass)%(width)))
static void
partial_set_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
for (int y = 0; y < b->height; y++)
do_or_die(drm_intel_bo_subdata(bo, 4*pixel(y, b->width), 4, &val));
}
static void
partial_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
for (int y = 0; y < b->height; y++) {
uint32_t buf;
do_or_die(drm_intel_bo_get_subdata(bo, 4*pixel(y, b->width), 4, &buf));
igt_assert_eq_u32(buf, val);
}
}
static drm_intel_bo *
create_normal_bo(drm_intel_bufmgr *bufmgr, uint64_t size)
{
drm_intel_bo *bo;
bo = drm_intel_bo_alloc(bufmgr, "bo", size, 0);
igt_assert(bo);
return bo;
}
static void can_create_normal(const struct create *create, unsigned count)
{
}
#if HAVE_CREATE_PRIVATE
static drm_intel_bo *
create_private_bo(drm_intel_bufmgr *bufmgr, uint64_t size)
{
drm_intel_bo *bo;
uint32_t handle;
/* XXX gem_create_with_flags(fd, size, I915_CREATE_PRIVATE); */
handle = gem_create(fd, size);
bo = gem_handle_to_libdrm_bo(bufmgr, fd, "stolen", handle);
gem_close(fd, handle);
return bo;
}
static void can_create_private(const struct create *create, unsigned count)
{
igt_require(0);
}
#endif
#if HAVE_CREATE_STOLEN
static drm_intel_bo *
create_stolen_bo(drm_intel_bufmgr *bufmgr, uint64_t size)
{
drm_intel_bo *bo;
uint32_t handle;
/* XXX gem_create_with_flags(fd, size, I915_CREATE_STOLEN); */
handle = gem_create(fd, size);
bo = gem_handle_to_libdrm_bo(bufmgr, fd, "stolen", handle);
gem_close(fd, handle);
return bo;
}
static void can_create_stolen(const struct create *create, unsigned count)
{
/* XXX check num_buffers against available stolen */
igt_require(0);
}
#endif
static void create_cpu_require(const struct create *create, unsigned count)
{
#if HAVE_CREATE_STOLEN
igt_require(create->create != create_stolen_bo);
#endif
}
static drm_intel_bo *
unmapped_create_bo(const struct buffers *b)
{
return b->create->create(b->bufmgr, 4*b->npixels);
}
static void create_snoop_require(const struct create *create, unsigned count)
{
create_cpu_require(create, count);
igt_require(!gem_has_llc(fd));
}
static drm_intel_bo *
snoop_create_bo(const struct buffers *b)
{
drm_intel_bo *bo;
bo = unmapped_create_bo(b);
gem_set_caching(fd, bo->handle, I915_CACHING_CACHED);
drm_intel_bo_disable_reuse(bo);
return bo;
}
static void create_userptr_require(const struct create *create, unsigned count)
{
static int has_userptr = -1;
if (has_userptr < 0) {
struct drm_i915_gem_userptr arg;
has_userptr = 0;
memset(&arg, 0, sizeof(arg));
arg.user_ptr = -4096ULL;
arg.user_size = 8192;
errno = 0;
drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &arg);
if (errno == EFAULT) {
igt_assert(posix_memalign((void **)&arg.user_ptr,
4096, arg.user_size) == 0);
has_userptr = drmIoctl(fd,
LOCAL_IOCTL_I915_GEM_USERPTR,
&arg) == 0;
free((void *)(uintptr_t)arg.user_ptr);
}
}
igt_require(has_userptr);
}
static drm_intel_bo *
userptr_create_bo(const struct buffers *b)
{
struct local_i915_gem_userptr userptr;
drm_intel_bo *bo;
void *ptr;
memset(&userptr, 0, sizeof(userptr));
userptr.user_size = b->npixels * 4;
userptr.user_size = (userptr.user_size + 4095) & -4096;
ptr = mmap(NULL, userptr.user_size,
PROT_READ | PROT_WRITE, MAP_ANON | MAP_SHARED, -1, 0);
igt_assert(ptr != (void *)-1);
userptr.user_ptr = (uintptr_t)ptr;
#if 0
do_or_die(drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &userptr));
bo = gem_handle_to_libdrm_bo(b->bufmgr, fd, "userptr", userptr.handle);
gem_close(fd, userptr.handle);
#else
bo = drm_intel_bo_alloc_userptr(b->bufmgr, "name",
ptr, I915_TILING_NONE, 0,
userptr.user_size, 0);
igt_assert(bo);
#endif
bo->virtual = (void *)(uintptr_t)userptr.user_ptr;
return bo;
}
static void
userptr_set_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
int size = b->npixels;
uint32_t *vaddr = bo->virtual;
gem_set_domain(fd, bo->handle,
I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
while (size--)
*vaddr++ = val;
}
static void
userptr_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
int size = b->npixels;
uint32_t *vaddr = bo->virtual;
gem_set_domain(fd, bo->handle,
I915_GEM_DOMAIN_CPU, 0);
while (size--)
igt_assert_eq_u32(*vaddr++, val);
}
static void
userptr_release_bo(drm_intel_bo *bo)
{
igt_assert(bo->virtual);
munmap(bo->virtual, bo->size);
bo->virtual = NULL;
drm_intel_bo_unreference(bo);
}
static void create_dmabuf_require(const struct create *create, unsigned count)
{
static int has_dmabuf = -1;
if (has_dmabuf < 0) {
struct drm_prime_handle args;
void *ptr;
memset(&args, 0, sizeof(args));
args.handle = gem_create(fd, 4096);
args.flags = DRM_RDWR;
args.fd = -1;
drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
gem_close(fd, args.handle);
has_dmabuf = 0;
ptr = mmap(NULL, 4096, PROT_READ, MAP_SHARED, args.fd, 0);
if (ptr != MAP_FAILED) {
has_dmabuf = 1;
munmap(ptr, 4096);
}
close(args.fd);
}
igt_require(has_dmabuf);
intel_require_files(2*count);
}
struct dmabuf {
int fd;
void *map;
};
static drm_intel_bo *
dmabuf_create_bo(const struct buffers *b)
{
struct drm_prime_handle args;
drm_intel_bo *bo;
struct dmabuf *dmabuf;
int size;
size = 4*b->npixels;
size = (size + 4095) & -4096;
memset(&args, 0, sizeof(args));
args.handle = gem_create(fd, size);
args.flags = DRM_RDWR;
args.fd = -1;
do_ioctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
gem_close(fd, args.handle);
bo = drm_intel_bo_gem_create_from_prime(b->bufmgr, args.fd, size);
igt_assert(bo);
dmabuf = malloc(sizeof(*dmabuf));
igt_assert(dmabuf);
dmabuf->fd = args.fd;
dmabuf->map = mmap(NULL, size,
PROT_READ | PROT_WRITE, MAP_SHARED,
dmabuf->fd, 0);
igt_assert(dmabuf->map != (void *)-1);
bo->virtual = dmabuf;
return bo;
}
static void
dmabuf_set_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
struct dmabuf *dmabuf = bo->virtual;
uint32_t *v;
int size;
prime_sync_start(dmabuf->fd, true);
for (v = dmabuf->map, size = b->npixels; size--; v++)
*v = val;
prime_sync_end(dmabuf->fd, true);
}
static void
dmabuf_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
struct dmabuf *dmabuf = bo->virtual;
uint32_t *v;
int size;
prime_sync_start(dmabuf->fd, false);
for (v = dmabuf->map, size = b->npixels; size--; v++)
igt_assert_eq_u32(*v, val);
prime_sync_end(dmabuf->fd, false);
}
static void
dmabuf_release_bo(drm_intel_bo *bo)
{
struct dmabuf *dmabuf = bo->virtual;
igt_assert(dmabuf);
munmap(dmabuf->map, bo->size);
close(dmabuf->fd);
free(dmabuf);
bo->virtual = NULL;
drm_intel_bo_unreference(bo);
}
static void
gtt_set_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
uint32_t *vaddr = bo->virtual;
int size = b->npixels;
drm_intel_gem_bo_start_gtt_access(bo, true);
while (size--)
*vaddr++ = val;
}
static void
gtt_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
uint32_t *vaddr = bo->virtual;
/* GTT access is slow. So we just compare a few points */
drm_intel_gem_bo_start_gtt_access(bo, false);
for (int y = 0; y < b->height; y++)
igt_assert_eq_u32(vaddr[pixel(y, b->width)], val);
}
static drm_intel_bo *
map_bo(drm_intel_bo *bo)
{
/* gtt map doesn't have a write parameter, so just keep the mapping
* around (to avoid the set_domain with the gtt write domain set) and
* manually tell the kernel when we start access the gtt. */
do_or_die(drm_intel_gem_bo_map_gtt(bo));
return bo;
}
static drm_intel_bo *
tile_bo(drm_intel_bo *bo, int width)
{
uint32_t tiling = I915_TILING_X;
uint32_t stride = width * 4;
do_or_die(drm_intel_bo_set_tiling(bo, &tiling, stride));
return bo;
}
static drm_intel_bo *
gtt_create_bo(const struct buffers *b)
{
return map_bo(unmapped_create_bo(b));
}
static drm_intel_bo *
gttX_create_bo(const struct buffers *b)
{
return tile_bo(gtt_create_bo(b), b->width);
}
static void bit17_require(void)
{
static struct drm_i915_gem_get_tiling2 {
uint32_t handle;
uint32_t tiling_mode;
uint32_t swizzle_mode;
uint32_t phys_swizzle_mode;
} arg;
#define DRM_IOCTL_I915_GEM_GET_TILING2 DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling2)
if (arg.handle == 0) {
arg.handle = gem_create(fd, 4096);
gem_set_tiling(fd, arg.handle, I915_TILING_X, 512);
do_ioctl(fd, DRM_IOCTL_I915_GEM_GET_TILING2, &arg);
gem_close(fd, arg.handle);
}
igt_require(arg.phys_swizzle_mode == arg.swizzle_mode);
}
static void wc_require(void)
{
bit17_require();
gem_require_mmap_wc(fd);
}
static void
wc_create_require(const struct create *create, unsigned count)
{
wc_require();
}
static drm_intel_bo *
wc_create_bo(const struct buffers *b)
{
drm_intel_bo *bo;
bo = unmapped_create_bo(b);
bo->virtual = gem_mmap__wc(fd, bo->handle, 0, bo->size, PROT_READ | PROT_WRITE);
return bo;
}
static void
wc_release_bo(drm_intel_bo *bo)
{
igt_assert(bo->virtual);
munmap(bo->virtual, bo->size);
bo->virtual = NULL;
nop_release_bo(bo);
}
static drm_intel_bo *
gpu_create_bo(const struct buffers *b)
{
return unmapped_create_bo(b);
}
static drm_intel_bo *
gpuX_create_bo(const struct buffers *b)
{
return tile_bo(gpu_create_bo(b), b->width);
}
static void
cpu_set_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
int size = b->npixels;
uint32_t *vaddr;
do_or_die(drm_intel_bo_map(bo, true));
vaddr = bo->virtual;
while (size--)
*vaddr++ = val;
drm_intel_bo_unmap(bo);
}
static void
cpu_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
int size = b->npixels;
uint32_t *vaddr;
do_or_die(drm_intel_bo_map(bo, false));
vaddr = bo->virtual;
while (size--)
igt_assert_eq_u32(*vaddr++, val);
drm_intel_bo_unmap(bo);
}
static void
gpu_set_bo(struct buffers *buffers, drm_intel_bo *bo, uint32_t val)
{
struct drm_i915_gem_relocation_entry reloc[1];
struct drm_i915_gem_exec_object2 gem_exec[2];
struct drm_i915_gem_execbuffer2 execbuf;
uint32_t buf[10], *b;
uint32_t tiling, swizzle;
drm_intel_bo_get_tiling(bo, &tiling, &swizzle);
memset(reloc, 0, sizeof(reloc));
memset(gem_exec, 0, sizeof(gem_exec));
memset(&execbuf, 0, sizeof(execbuf));
b = buf;
*b++ = XY_COLOR_BLT_CMD_NOLEN |
((gen >= 8) ? 5 : 4) |
COLOR_BLT_WRITE_ALPHA | XY_COLOR_BLT_WRITE_RGB;
if (gen >= 4 && tiling) {
b[-1] |= XY_COLOR_BLT_TILED;
*b = buffers->width;
} else
*b = buffers->width << 2;
*b++ |= 0xf0 << 16 | 1 << 25 | 1 << 24;
*b++ = 0;
*b++ = buffers->height << 16 | buffers->width;
reloc[0].offset = (b - buf) * sizeof(uint32_t);
reloc[0].target_handle = bo->handle;
reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
*b++ = 0;
if (gen >= 8)
*b++ = 0;
*b++ = val;
*b++ = MI_BATCH_BUFFER_END;
if ((b - buf) & 1)
*b++ = 0;
gem_exec[0].handle = bo->handle;
gem_exec[0].flags = EXEC_OBJECT_NEEDS_FENCE;
gem_exec[1].handle = gem_create(fd, 4096);
gem_exec[1].relocation_count = 1;
gem_exec[1].relocs_ptr = (uintptr_t)reloc;
execbuf.buffers_ptr = (uintptr_t)gem_exec;
execbuf.buffer_count = 2;
execbuf.batch_len = (b - buf) * sizeof(buf[0]);
if (gen >= 6)
execbuf.flags = I915_EXEC_BLT;
gem_write(fd, gem_exec[1].handle, 0, buf, execbuf.batch_len);
gem_execbuf(fd, &execbuf);
gem_close(fd, gem_exec[1].handle);
}
static void
gpu_cmp_bo(struct buffers *b, drm_intel_bo *bo, uint32_t val)
{
blt_copy_bo(b, b->snoop, bo);
cpu_cmp_bo(b, b->snoop, val);
}
struct access_mode {
const char *name;
void (*require)(const struct create *, unsigned);
drm_intel_bo *(*create_bo)(const struct buffers *b);
void (*set_bo)(struct buffers *b, drm_intel_bo *bo, uint32_t val);
void (*cmp_bo)(struct buffers *b, drm_intel_bo *bo, uint32_t val);
void (*release_bo)(drm_intel_bo *bo);
};
igt_render_copyfunc_t rendercopy;
static int read_sysctl(const char *path)
{
FILE *file = fopen(path, "r");
int max = 0;
if (file) {
if (fscanf(file, "%d", &max) != 1)
max = 0; /* silence! */
fclose(file);
}
return max;
}
static int write_sysctl(const char *path, int value)
{
FILE *file = fopen(path, "w");
if (file) {
fprintf(file, "%d", value);
fclose(file);
}
return read_sysctl(path);
}
static bool set_max_map_count(int num_buffers)
{
int max = read_sysctl("/proc/sys/vm/max_map_count");
if (max < num_buffers + 1024)
max = write_sysctl("/proc/sys/vm/max_map_count",
num_buffers + 1024);
return max > num_buffers;
}
static void buffers_init(struct buffers *b,
const char *name,
const struct create *create,
const struct access_mode *mode,
const struct size *size,
int num_buffers,
int _fd, int enable_reuse)
{
memset(b, 0, sizeof(*b));
b->name = name;
b->create = create;
b->mode = mode;
b->size = size;
b->num_buffers = num_buffers;
b->count = 0;
b->width = size->width;
b->height = size->height;
b->npixels = size->width * size->height;
b->tmp = malloc(4*b->npixels);
igt_assert(b->tmp);
b->bufmgr = drm_intel_bufmgr_gem_init(_fd, 4096);
igt_assert(b->bufmgr);
b->src = malloc(2*sizeof(drm_intel_bo *)*num_buffers);
igt_assert(b->src);
b->dst = b->src + num_buffers;
if (enable_reuse)
drm_intel_bufmgr_gem_enable_reuse(b->bufmgr);
b->batch = intel_batchbuffer_alloc(b->bufmgr, devid);
igt_assert(b->batch);
}
static void buffers_destroy(struct buffers *b)
{
int count = b->count;
if (count == 0)
return;
/* Be safe so that we can clean up a partial creation */
b->count = 0;
for (int i = 0; i < count; i++) {
if (b->src[i]) {
b->mode->release_bo(b->src[i]);
b->src[i] = NULL;
} else
break;
if (b->dst[i]) {
b->mode->release_bo(b->dst[i]);
b->dst[i] = NULL;
}
}
if (b->snoop) {
nop_release_bo(b->snoop);
b->snoop = NULL;
}
if (b->spare) {
b->mode->release_bo(b->spare);
b->spare = NULL;
}
}
static void buffers_create(struct buffers *b)
{
int count = b->num_buffers;
igt_assert(b->bufmgr);
buffers_destroy(b);
igt_assert(b->count == 0);
b->count = count;
for (int i = 0; i < count; i++) {
b->src[i] = b->mode->create_bo(b);
b->dst[i] = b->mode->create_bo(b);
}
b->spare = b->mode->create_bo(b);
b->snoop = snoop_create_bo(b);
}
static void buffers_reset(struct buffers *b, bool enable_reuse)
{
buffers_destroy(b);
igt_assert(b->count == 0);
igt_assert(b->tmp);
igt_assert(b->src);
igt_assert(b->dst);
intel_batchbuffer_free(b->batch);
drm_intel_bufmgr_destroy(b->bufmgr);
b->bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
igt_assert(b->bufmgr);
if (enable_reuse)
drm_intel_bufmgr_gem_enable_reuse(b->bufmgr);
b->batch = intel_batchbuffer_alloc(b->bufmgr, devid);
igt_assert(b->batch);
}
static void buffers_fini(struct buffers *b)
{
if (b->bufmgr == NULL)
return;
buffers_destroy(b);
free(b->tmp);
free(b->src);
intel_batchbuffer_free(b->batch);
drm_intel_bufmgr_destroy(b->bufmgr);
memset(b, 0, sizeof(*b));
}
typedef void (*do_copy)(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src);
typedef struct igt_hang_ring (*do_hang)(void);
static void render_copy_bo(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src)
{
struct igt_buf d = {
.bo = dst,
.size = b->npixels * 4,
.num_tiles = b->npixels * 4,
.stride = b->width * 4,
}, s = {
.bo = src,
.size = b->npixels * 4,
.num_tiles = b->npixels * 4,
.stride = b->width * 4,
};
uint32_t swizzle;
drm_intel_bo_get_tiling(dst, &d.tiling, &swizzle);
drm_intel_bo_get_tiling(src, &s.tiling, &swizzle);
rendercopy(b->batch, NULL,
&s, 0, 0,
b->width, b->height,
&d, 0, 0);
}
static void blt_copy_bo(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src)
{
intel_blt_copy(b->batch,
src, 0, 0, 4*b->width,
dst, 0, 0, 4*b->width,
b->width, b->height, 32);
}
static void cpu_copy_bo(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src)
{
const int size = b->npixels * sizeof(uint32_t);
void *d, *s;
gem_set_domain(fd, src->handle, I915_GEM_DOMAIN_CPU, 0);
gem_set_domain(fd, dst->handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
s = gem_mmap__cpu(fd, src->handle, 0, size, PROT_READ);
d = gem_mmap__cpu(fd, dst->handle, 0, size, PROT_WRITE);
memcpy(d, s, size);
munmap(d, size);
munmap(s, size);
}
static void gtt_copy_bo(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src)
{
const int size = b->npixels * sizeof(uint32_t);
void *d, *s;
gem_set_domain(fd, src->handle, I915_GEM_DOMAIN_GTT, 0);
gem_set_domain(fd, dst->handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
s = gem_mmap__gtt(fd, src->handle, size, PROT_READ);
d = gem_mmap__gtt(fd, dst->handle, size, PROT_WRITE);
memcpy(d, s, size);
munmap(d, size);
munmap(s, size);
}
static void wc_copy_bo(struct buffers *b, drm_intel_bo *dst, drm_intel_bo *src)
{
const int size = b->width * sizeof(uint32_t);
void *d, *s;
gem_set_domain(fd, src->handle, I915_GEM_DOMAIN_GTT, 0);
gem_set_domain(fd, dst->handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
s = gem_mmap__wc(fd, src->handle, 0, size, PROT_READ);
d = gem_mmap__wc(fd, dst->handle, 0, size, PROT_WRITE);
memcpy(d, s, size);
munmap(d, size);
munmap(s, size);
}
static struct igt_hang_ring no_hang(void)
{
return (struct igt_hang_ring){0, 0};
}
static struct igt_hang_ring bcs_hang(void)
{
return igt_hang_ring(fd, I915_EXEC_BLT);
}
static struct igt_hang_ring rcs_hang(void)
{
return igt_hang_ring(fd, I915_EXEC_RENDER);
}
static struct igt_hang_ring all_hang(void)
{
uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 obj;
struct igt_hang_ring hang;
unsigned engine;
memset(&obj, 0, sizeof(obj));
obj.handle = gem_create(fd, 4096);
gem_write(fd, obj.handle, 0, &bbe, sizeof(&bbe));
memset(&execbuf, 0, sizeof(execbuf));
execbuf.buffers_ptr = (uintptr_t)&obj;
execbuf.buffer_count = 1;
for_each_engine(fd, engine) {
hang = igt_hang_ring(fd, engine);
execbuf.flags = engine;
__gem_execbuf(fd, &execbuf);
gem_close(fd, hang.handle);
}
hang.handle = obj.handle;
return hang;
}
static void do_basic0(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
gem_quiescent_gpu(fd);
buffers->mode->set_bo(buffers, buffers->src[0], 0xdeadbeef);
for (int i = 0; i < buffers->count; i++) {
struct igt_hang_ring hang = do_hang_func();
do_copy_func(buffers, buffers->dst[i], buffers->src[0]);
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef);
igt_post_hang_ring(fd, hang);
}
}
static void do_basic1(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
gem_quiescent_gpu(fd);
for (int i = 0; i < buffers->count; i++) {
struct igt_hang_ring hang = do_hang_func();
buffers->mode->set_bo(buffers, buffers->src[i], i);
buffers->mode->set_bo(buffers, buffers->dst[i], ~i);
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
usleep(0); /* let someone else claim the mutex */
buffers->mode->cmp_bo(buffers, buffers->dst[i], i);
igt_post_hang_ring(fd, hang);
}
}
static void do_basicN(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
gem_quiescent_gpu(fd);
for (int i = 0; i < buffers->count; i++) {
buffers->mode->set_bo(buffers, buffers->src[i], i);
buffers->mode->set_bo(buffers, buffers->dst[i], ~i);
}
hang = do_hang_func();
for (int i = 0; i < buffers->count; i++) {
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
usleep(0); /* let someone else claim the mutex */
}
for (int i = 0; i < buffers->count; i++)
buffers->mode->cmp_bo(buffers, buffers->dst[i], i);
igt_post_hang_ring(fd, hang);
}
static void do_overwrite_source(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = 0; i < buffers->count; i++) {
buffers->mode->set_bo(buffers, buffers->src[i], i);
buffers->mode->set_bo(buffers, buffers->dst[i], ~i);
}
for (i = 0; i < buffers->count; i++)
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef);
for (i = 0; i < buffers->count; i++)
buffers->mode->cmp_bo(buffers, buffers->dst[i], i);
igt_post_hang_ring(fd, hang);
}
static void do_overwrite_source_read(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func,
int do_rcs)
{
const int half = buffers->count/2;
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = 0; i < half; i++) {
buffers->mode->set_bo(buffers, buffers->src[i], i);
buffers->mode->set_bo(buffers, buffers->dst[i], ~i);
buffers->mode->set_bo(buffers, buffers->dst[i+half], ~i);
}
for (i = 0; i < half; i++) {
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
if (do_rcs)
render_copy_bo(buffers, buffers->dst[i+half], buffers->src[i]);
else
blt_copy_bo(buffers, buffers->dst[i+half], buffers->src[i]);
}
hang = do_hang_func();
for (i = half; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef);
for (i = 0; i < half; i++) {
buffers->mode->cmp_bo(buffers, buffers->dst[i], i);
buffers->mode->cmp_bo(buffers, buffers->dst[i+half], i);
}
igt_post_hang_ring(fd, hang);
}
static void do_overwrite_source_read_bcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
do_overwrite_source_read(buffers, do_copy_func, do_hang_func, 0);
}
static void do_overwrite_source_read_rcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
do_overwrite_source_read(buffers, do_copy_func, do_hang_func, 1);
}
static void do_overwrite_source__rev(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = 0; i < buffers->count; i++) {
buffers->mode->set_bo(buffers, buffers->src[i], i);
buffers->mode->set_bo(buffers, buffers->dst[i], ~i);
}
for (i = 0; i < buffers->count; i++)
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
hang = do_hang_func();
for (i = 0; i < buffers->count; i++)
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef);
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], i);
igt_post_hang_ring(fd, hang);
}
static void do_overwrite_source__one(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
gem_quiescent_gpu(fd);
buffers->mode->set_bo(buffers, buffers->src[0], 0);
buffers->mode->set_bo(buffers, buffers->dst[0], ~0);
do_copy_func(buffers, buffers->dst[0], buffers->src[0]);
hang = do_hang_func();
buffers->mode->set_bo(buffers, buffers->src[0], 0xdeadbeef);
buffers->mode->cmp_bo(buffers, buffers->dst[0], 0);
igt_post_hang_ring(fd, hang);
}
static void do_intermix(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func,
int do_rcs)
{
const int half = buffers->count/2;
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = 0; i < buffers->count; i++) {
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef^~i);
buffers->mode->set_bo(buffers, buffers->dst[i], i);
}
for (i = 0; i < half; i++) {
if (do_rcs == 1 || (do_rcs == -1 && i & 1))
render_copy_bo(buffers, buffers->dst[i], buffers->src[i]);
else
blt_copy_bo(buffers, buffers->dst[i], buffers->src[i]);
do_copy_func(buffers, buffers->dst[i+half], buffers->src[i]);
if (do_rcs == 1 || (do_rcs == -1 && (i & 1) == 0))
render_copy_bo(buffers, buffers->dst[i], buffers->dst[i+half]);
else
blt_copy_bo(buffers, buffers->dst[i], buffers->dst[i+half]);
do_copy_func(buffers, buffers->dst[i+half], buffers->src[i+half]);
}
hang = do_hang_func();
for (i = 0; i < 2*half; i++)
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef^~i);
igt_post_hang_ring(fd, hang);
}
static void do_intermix_rcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
do_intermix(buffers, do_copy_func, do_hang_func, 1);
}
static void do_intermix_bcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
do_intermix(buffers, do_copy_func, do_hang_func, 0);
}
static void do_intermix_both(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
do_intermix(buffers, do_copy_func, do_hang_func, -1);
}
static void do_early_read(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef);
for (i = 0; i < buffers->count; i++)
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef);
igt_post_hang_ring(fd, hang);
}
static void do_read_read_bcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef ^ i);
for (i = 0; i < buffers->count; i++) {
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
blt_copy_bo(buffers, buffers->spare, buffers->src[i]);
}
buffers->mode->cmp_bo(buffers, buffers->spare, 0xdeadbeef^(buffers->count-1));
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef ^ i);
igt_post_hang_ring(fd, hang);
}
static void do_write_read_bcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef ^ i);
for (i = 0; i < buffers->count; i++) {
blt_copy_bo(buffers, buffers->spare, buffers->src[i]);
do_copy_func(buffers, buffers->dst[i], buffers->spare);
}
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef ^ i);
igt_post_hang_ring(fd, hang);
}
static void do_read_read_rcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef ^ i);
for (i = 0; i < buffers->count; i++) {
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
render_copy_bo(buffers, buffers->spare, buffers->src[i]);
}
buffers->mode->cmp_bo(buffers, buffers->spare, 0xdeadbeef^(buffers->count-1));
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef ^ i);
igt_post_hang_ring(fd, hang);
}
static void do_write_read_rcs(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xdeadbeef ^ i);
for (i = 0; i < buffers->count; i++) {
render_copy_bo(buffers, buffers->spare, buffers->src[i]);
do_copy_func(buffers, buffers->dst[i], buffers->spare);
}
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xdeadbeef ^ i);
igt_post_hang_ring(fd, hang);
}
static void do_gpu_read_after_write(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func)
{
struct igt_hang_ring hang;
int i;
gem_quiescent_gpu(fd);
for (i = buffers->count; i--; )
buffers->mode->set_bo(buffers, buffers->src[i], 0xabcdabcd);
for (i = 0; i < buffers->count; i++)
do_copy_func(buffers, buffers->dst[i], buffers->src[i]);
for (i = buffers->count; i--; )
do_copy_func(buffers, buffers->spare, buffers->dst[i]);
hang = do_hang_func();
for (i = buffers->count; i--; )
buffers->mode->cmp_bo(buffers, buffers->dst[i], 0xabcdabcd);
igt_post_hang_ring(fd, hang);
}
typedef void (*do_test)(struct buffers *buffers,
do_copy do_copy_func,
do_hang do_hang_func);
typedef void (*run_wrap)(struct buffers *buffers,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func);
static void run_single(struct buffers *buffers,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func)
{
pass = 0;
do_test_func(buffers, do_copy_func, do_hang_func);
igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
}
static void run_interruptible(struct buffers *buffers,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func)
{
pass = 0;
igt_while_interruptible(true)
do_test_func(buffers, do_copy_func, do_hang_func);
igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
}
static void run_child(struct buffers *buffers,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func)
{
/* We inherit the buffers from the parent, but the bufmgr/batch
* needs to be local as the cache of reusable itself will be COWed,
* leading to the child closing an object without the parent knowing.
*/
pass = 0;
igt_fork(child, 1)
do_test_func(buffers, do_copy_func, do_hang_func);
igt_waitchildren();
igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
}
static void __run_forked(struct buffers *buffers,
int num_children, int loops, bool interrupt,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func)
{
/* purge the libdrm caches before cloing the process */
buffers_reset(buffers, true);
igt_fork(child, num_children) {
int num_buffers;
/* recreate process local variables */
fd = drm_open_driver(DRIVER_INTEL);
num_buffers = buffers->num_buffers / num_children;
num_buffers += MIN_BUFFERS;
if (num_buffers < buffers->num_buffers)
buffers->num_buffers = num_buffers;
buffers_reset(buffers, true);
buffers_create(buffers);
igt_while_interruptible(interrupt) {
for (pass = 0; pass < loops; pass++)
do_test_func(buffers,
do_copy_func,
do_hang_func);
}
}
igt_waitchildren();
igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
}
static void run_forked(struct buffers *buffers,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func)
{
const int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
__run_forked(buffers, ncpus, ncpus, false,
do_test_func, do_copy_func, do_hang_func);
}
static void run_bomb(struct buffers *buffers,
do_test do_test_func,
do_copy do_copy_func,
do_hang do_hang_func)
{
const int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
__run_forked(buffers, 8*ncpus, 2, true,
do_test_func, do_copy_func, do_hang_func);
}
static void cpu_require(void)
{
bit17_require();
}
static void gtt_require(void)
{
}
static void bcs_require(void)
{
}
static void rcs_require(void)
{
igt_require(rendercopy);
}
static void
run_mode(const char *prefix,
const struct create *create,
const struct access_mode *mode,
const struct size *size,
const int num_buffers,
const char *suffix,
run_wrap run_wrap_func)
{
const struct {
const char *prefix;
do_copy copy;
void (*require)(void);
} pipelines[] = {
{ "cpu", cpu_copy_bo, cpu_require },
{ "gtt", gtt_copy_bo, gtt_require },
{ "wc", wc_copy_bo, wc_require },
{ "blt", blt_copy_bo, bcs_require },
{ "render", render_copy_bo, rcs_require },
{ NULL, NULL }
}, *pskip = pipelines + 3, *p;
const struct {
const char *suffix;
do_hang hang;
} hangs[] = {
{ "", no_hang },
{ "-hang-blt", bcs_hang },
{ "-hang-render", rcs_hang },
{ "-hang-all", all_hang },
{ NULL, NULL },
}, *h;
struct buffers buffers;
igt_fixture
buffers_init(&buffers, prefix, create, mode,
size, num_buffers,
fd, run_wrap_func != run_child);
for (h = hangs; h->suffix; h++) {
if (!all && *h->suffix)
continue;
if (!*h->suffix)
igt_fixture
igt_fork_hang_detector(fd);
for (p = all ? pipelines : pskip; p->prefix; p++) {
igt_fixture p->require();
igt_subtest_f("%s-%s-%s-sanitycheck0%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers, do_basic0,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-sanitycheck1%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers, do_basic1,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-sanitycheckN%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers, do_basicN,
p->copy, h->hang);
}
/* try to overwrite the source values */
igt_subtest_f("%s-%s-%s-overwrite-source-one%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_overwrite_source__one,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-overwrite-source%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_overwrite_source,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-overwrite-source-read-bcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_overwrite_source_read_bcs,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-overwrite-source-read-rcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
igt_require(rendercopy);
buffers_create(&buffers);
run_wrap_func(&buffers,
do_overwrite_source_read_rcs,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-overwrite-source-rev%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_overwrite_source__rev,
p->copy, h->hang);
}
/* try to intermix copies with GPU copies*/
igt_subtest_f("%s-%s-%s-intermix-rcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
igt_require(rendercopy);
buffers_create(&buffers);
run_wrap_func(&buffers,
do_intermix_rcs,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-intermix-bcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
igt_require(rendercopy);
buffers_create(&buffers);
run_wrap_func(&buffers,
do_intermix_bcs,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-intermix-both%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
igt_require(rendercopy);
buffers_create(&buffers);
run_wrap_func(&buffers,
do_intermix_both,
p->copy, h->hang);
}
/* try to read the results before the copy completes */
igt_subtest_f("%s-%s-%s-early-read%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_early_read,
p->copy, h->hang);
}
/* concurrent reads */
igt_subtest_f("%s-%s-%s-read-read-bcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_read_read_bcs,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-read-read-rcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
igt_require(rendercopy);
buffers_create(&buffers);
run_wrap_func(&buffers,
do_read_read_rcs,
p->copy, h->hang);
}
/* split copying between rings */
igt_subtest_f("%s-%s-%s-write-read-bcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_write_read_bcs,
p->copy, h->hang);
}
igt_subtest_f("%s-%s-%s-write-read-rcs%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
igt_require(rendercopy);
buffers_create(&buffers);
run_wrap_func(&buffers,
do_write_read_rcs,
p->copy, h->hang);
}
/* and finally try to trick the kernel into loosing the pending write */
igt_subtest_f("%s-%s-%s-gpu-read-after-write%s%s", prefix, mode->name, p->prefix, suffix, h->suffix) {
buffers_create(&buffers);
run_wrap_func(&buffers,
do_gpu_read_after_write,
p->copy, h->hang);
}
}
if (!*h->suffix)
igt_fixture
igt_stop_hang_detector();
}
igt_fixture
buffers_fini(&buffers);
}
static void
run_modes(const char *style,
const struct create *create,
const struct access_mode *mode,
const struct size *size,
const int num)
{
const struct wrap {
const char *suffix;
run_wrap func;
} wrappers[] = {
{ "", run_single },
{ "-child", run_child },
{ "-forked", run_forked },
{ "-interruptible", run_interruptible },
{ "-bomb", run_bomb },
{ NULL },
};
while (mode->name) {
igt_subtest_group {
igt_fixture {
if (mode->require)
mode->require(create, num);
}
for (const struct wrap *w = wrappers; w->suffix; w++) {
run_mode(style, create, mode, size, num,
w->suffix, w->func);
}
}
mode++;
}
}
static unsigned
num_buffers(uint64_t max,
const struct size *s,
const struct create *c,
unsigned allow_mem)
{
unsigned size = 4*s->width*s->height;
uint64_t n;
igt_assert(size);
n = max / (2*size);
n += MIN_BUFFERS;
igt_require(n < INT32_MAX);
igt_require(set_max_map_count(2*n));
if (c->require)
c->require(c, n);
intel_require_memory(2*n, size, allow_mem);
return n;
}
static bool allow_unlimited_files(void)
{
struct rlimit rlim;
unsigned nofile_rlim = 1024*1024;
FILE *file = fopen("/proc/sys/fs/file-max", "r");
if (file) {
igt_assert(fscanf(file, "%u", &nofile_rlim) == 1);
igt_info("System limit for open files is %u\n", nofile_rlim);
fclose(file);
}
if (getrlimit(RLIMIT_NOFILE, &rlim))
return false;
rlim.rlim_cur = nofile_rlim;
rlim.rlim_max = nofile_rlim;
return setrlimit(RLIMIT_NOFILE, &rlim) == 0;
}
igt_main
{
const struct access_mode modes[] = {
{
.name = "prw",
.create_bo = unmapped_create_bo,
.set_bo = prw_set_bo,
.cmp_bo = prw_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "partial",
.create_bo = unmapped_create_bo,
.set_bo = partial_set_bo,
.cmp_bo = partial_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "cpu",
.create_bo = unmapped_create_bo,
.require = create_cpu_require,
.set_bo = cpu_set_bo,
.cmp_bo = cpu_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "snoop",
.create_bo = snoop_create_bo,
.require = create_snoop_require,
.set_bo = cpu_set_bo,
.cmp_bo = cpu_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "userptr",
.create_bo = userptr_create_bo,
.require = create_userptr_require,
.set_bo = userptr_set_bo,
.cmp_bo = userptr_cmp_bo,
.release_bo = userptr_release_bo,
},
{
.name = "dmabuf",
.create_bo = dmabuf_create_bo,
.require = create_dmabuf_require,
.set_bo = dmabuf_set_bo,
.cmp_bo = dmabuf_cmp_bo,
.release_bo = dmabuf_release_bo,
},
{
.name = "gtt",
.create_bo = gtt_create_bo,
.set_bo = gtt_set_bo,
.cmp_bo = gtt_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "gttX",
.create_bo = gttX_create_bo,
.set_bo = gtt_set_bo,
.cmp_bo = gtt_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "wc",
.require = wc_create_require,
.create_bo = wc_create_bo,
.set_bo = gtt_set_bo,
.cmp_bo = gtt_cmp_bo,
.release_bo = wc_release_bo,
},
{
.name = "gpu",
.create_bo = gpu_create_bo,
.set_bo = gpu_set_bo,
.cmp_bo = gpu_cmp_bo,
.release_bo = nop_release_bo,
},
{
.name = "gpuX",
.create_bo = gpuX_create_bo,
.set_bo = gpu_set_bo,
.cmp_bo = gpu_cmp_bo,
.release_bo = nop_release_bo,
},
{ NULL },
};
const struct create create[] = {
{ "", can_create_normal, create_normal_bo},
#if HAVE_CREATE_PRIVATE
{ "private-", can_create_private, create_private_bo},
#endif
#if HAVE_CREATE_STOLEN
{ "stolen-", can_create_stolen, create_stolen_bo},
#endif
{ NULL, NULL }
};
const struct size sizes[] = {
{ "4KiB", 128, 8 },
{ "256KiB", 128, 128 },
{ "1MiB", 512, 512 },
{ "16MiB", 2048, 2048 },
{ NULL}
};
uint64_t pin_sz = 0;
void *pinned = NULL;
char name[80];
int count = 0;
igt_skip_on_simulation();
if (strstr(igt_test_name(), "all"))
all = true;
igt_fixture {
allow_unlimited_files();
fd = drm_open_driver(DRIVER_INTEL);
intel_detect_and_clear_missed_interrupts(fd);
devid = intel_get_drm_devid(fd);
gen = intel_gen(devid);
rendercopy = igt_get_render_copyfunc(devid);
}
for (const struct create *c = create; c->name; c++) {
for (const struct size *s = sizes; s->name; s++) {
/* Minimum test set */
snprintf(name, sizeof(name), "%s%s-%s",
c->name, s->name, "tiny");
igt_subtest_group {
igt_fixture {
count = num_buffers(0, s, c, CHECK_RAM);
}
run_modes(name, c, modes, s, count);
}
/* "Average" test set */
snprintf(name, sizeof(name), "%s%s-%s",
c->name, s->name, "small");
igt_subtest_group {
igt_fixture {
count = num_buffers(gem_mappable_aperture_size()/4,
s, c, CHECK_RAM);
}
run_modes(name, c, modes, s, count);
}
/* Use the entire mappable aperture */
snprintf(name, sizeof(name), "%s%s-%s",
c->name, s->name, "thrash");
igt_subtest_group {
igt_fixture {
count = num_buffers(gem_mappable_aperture_size(),
s, c, CHECK_RAM);
}
run_modes(name, c, modes, s, count);
}
/* Use the entire global GTT */
snprintf(name, sizeof(name), "%s%s-%s",
c->name, s->name, "global");
igt_subtest_group {
igt_fixture {
count = num_buffers(gem_global_aperture_size(fd),
s, c, CHECK_RAM);
}
run_modes(name, c, modes, s, count);
}
/* Use the entire per-process GTT */
snprintf(name, sizeof(name), "%s%s-%s",
c->name, s->name, "full");
igt_subtest_group {
igt_fixture {
count = num_buffers(gem_aperture_size(fd),
s, c, CHECK_RAM);
}
run_modes(name, c, modes, s, count);
}
/* Use the entire mappable aperture, force swapping */
snprintf(name, sizeof(name), "%s%s-%s",
c->name, s->name, "swap");
igt_subtest_group {
igt_fixture {
if (intel_get_avail_ram_mb() > gem_mappable_aperture_size()/(1024*1024)) {
pin_sz = intel_get_avail_ram_mb() - gem_mappable_aperture_size()/(1024*1024);
igt_debug("Pinning %lld MiB\n", (long long)pin_sz);
pin_sz *= 1024 * 1024;
if (posix_memalign(&pinned, 4096, pin_sz) ||
mlock(pinned, pin_sz) ||
madvise(pinned, pin_sz, MADV_DONTFORK)) {
free(pinned);
pinned = NULL;
}
igt_require(pinned);
}
count = num_buffers(gem_mappable_aperture_size(),
s, c, CHECK_RAM | CHECK_SWAP);
}
run_modes(name, c, modes, s, count);
igt_fixture {
if (pinned) {
munlock(pinned, pin_sz);
free(pinned);
pinned = NULL;
}
}
}
}
}
}