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lib/drmtest: extract mappable aperture trasher infrastructure

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Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-01-15 18:32:11 +01:00
parent 7b14b093d4
commit d75d69d0a9
3 changed files with 55 additions and 34 deletions
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41
lib/drmtest.c
View File

@ -289,6 +289,7 @@ uint64_t gem_mappable_aperture_size(void)
return pci_dev->regions[bar].size;
}
/* signal interrupt helpers */
static pid_t signal_helper = -1;
long long int sig_stat;
static void signal_helper_process(pid_t pid)
@ -330,3 +331,43 @@ void drmtest_stop_signal_helper(void)
signal_helper = -1;
}
/* mappable aperture trasher helper */
drm_intel_bo **trash_bos;
int num_trash_bos;
void drmtest_init_aperture_trashers(drm_intel_bufmgr *bufmgr)
{
int i;
num_trash_bos = gem_mappable_aperture_size() / (1024*1024);
trash_bos = malloc(num_trash_bos * sizeof(drm_intel_bo *));
assert(trash_bos);
for (i = 0; i < num_trash_bos; i++)
trash_bos[i] = drm_intel_bo_alloc(bufmgr, "trash bo", 1024*1024, 4096);
}
void drmtest_trash_aperture(void)
{
int i;
uint8_t *gtt_ptr;
for (i = 0; i < num_trash_bos; i++) {
drm_intel_gem_bo_map_gtt(trash_bos[i]);
gtt_ptr = trash_bos[i]->virtual;
*gtt_ptr = 0;
drm_intel_gem_bo_unmap_gtt(trash_bos[i]);
}
}
void drmtest_cleanup_aperture_trashers(void)
{
int i;
for (i = 0; i < num_trash_bos; i++)
drm_intel_bo_unreference(trash_bos[i]);
free(trash_bos);
}

8
lib/drmtest.h
View File

@ -32,12 +32,14 @@
#include <errno.h>
#include "xf86drm.h"
#include "intel_batchbuffer.h"
int drm_open_any(void);
int drm_open_any_master(void);
void gem_quiescent_gpu(int fd);
/* ioctl wrappers and similar stuff for bare metal testing */
void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride);
void gem_close(int fd, uint32_t handle);
void gem_write(int fd, uint32_t handle, uint32_t offset, const void *buf, uint32_t size);
@ -50,5 +52,11 @@ void *gem_mmap(int fd, uint32_t handle, int size, int prot);
uint64_t gem_aperture_size(int fd);
uint64_t gem_mappable_aperture_size(void);
/* generally useful helpers */
void drmtest_fork_signal_helper(void);
void drmtest_stop_signal_helper(void);
/* helpers based upon the libdrm buffer manager */
void drmtest_init_aperture_trashers(drm_intel_bufmgr *bufmgr);
void drmtest_trash_aperture(void);
void drmtest_cleanup_aperture_trashers(void);

40
tests/gem_partial_pwrite_pread.c
View File

@ -56,39 +56,9 @@ drm_intel_bo *scratch_bo;
drm_intel_bo *staging_bo;
#define BO_SIZE (4*4096)
uint32_t devid;
uint64_t mappable_gtt_limit;
int fd;
drm_intel_bo *trash_bos[10000];
int num_trash_bos;
static void
init_aperture_trashers(void)
{
int i;
if (intel_gen(devid) >= 6)
num_trash_bos = 512;
else
num_trash_bos = 256;
for (i = 0; i < num_trash_bos; i++)
trash_bos[i] = drm_intel_bo_alloc(bufmgr, "trash bo", 1024*1024, 4096);
}
static void
trash_aperture(void)
{
int i;
uint8_t *gtt_ptr;
for (i = 0; i < num_trash_bos; i++) {
drm_intel_gem_bo_map_gtt(trash_bos[i]);
gtt_ptr = trash_bos[i]->virtual;
*gtt_ptr = 0;
drm_intel_gem_bo_unmap_gtt(trash_bos[i]);
}
}
static void
copy_bo(drm_intel_bo *src, drm_intel_bo *dst)
{
@ -124,9 +94,9 @@ blt_bo_fill(drm_intel_bo *tmp_bo, drm_intel_bo *bo, int val)
drm_intel_gem_bo_unmap_gtt(tmp_bo);
if (bo->offset < num_trash_bos*1024*1024 &&
if (bo->offset < mappable_gtt_limit &&
(IS_G33(devid) || intel_gen(devid) >= 4))
trash_aperture();
drmtest_trash_aperture();
copy_bo(tmp_bo, bo);
}
@ -151,7 +121,8 @@ int main(int argc, char **argv)
scratch_bo = drm_intel_bo_alloc(bufmgr, "scratch bo", BO_SIZE, 4096);
staging_bo = drm_intel_bo_alloc(bufmgr, "staging bo", BO_SIZE, 4096);
init_aperture_trashers();
drmtest_init_aperture_trashers(bufmgr);
mappable_gtt_limit = gem_mappable_aperture_size();
printf("checking partial reads\n");
for (i = 0; i < 1000; i++) {
@ -276,6 +247,7 @@ int main(int argc, char **argv)
drm_intel_gem_bo_unmap_gtt(staging_bo);
}
drmtest_cleanup_aperture_trashers();
drm_intel_bufmgr_destroy(bufmgr);
close(fd);