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winsys/radeon: add guard pages when R600_DEBUG=check_vm is enabled

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This should help flush out GPU VM faults.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-06-22 11:22:33 +02:00
parent 49c0b4a0db
commit bc4b7ebbfd
3 changed files with 7 additions and 2 deletions
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4
src/gallium/winsys/radeon/drm/radeon_drm_bo.c
View file

@ -555,8 +555,10 @@ static struct radeon_bo *radeon_create_bo(struct radeon_drm_winsys *rws,
if (rws->info.has_virtual_memory) {
struct drm_radeon_gem_va va;
unsigned va_gap_size;
bo->va = radeon_bomgr_find_va(rws, size, alignment);
va_gap_size = rws->check_vm ? MAX2(4 * alignment, 64 * 1024) : 0;
bo->va = radeon_bomgr_find_va(rws, size + va_gap_size, alignment);
va.handle = bo->handle;
va.vm_id = 0;

4
src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
View file

@ -527,6 +527,8 @@ static boolean do_winsys_init(struct radeon_drm_winsys *ws)
(ws->info.family == CHIP_HAWAII &&
ws->accel_working2 < 3);
ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL;
return TRUE;
}
@ -742,7 +744,7 @@ radeon_drm_winsys_create(int fd, radeon_screen_create_t screen_create)
if (!do_winsys_init(ws))
goto fail1;
pb_cache_init(&ws->bo_cache, 500000, 2.0f, 0,
pb_cache_init(&ws->bo_cache, 500000, ws->check_vm ? 1.0f : 2.0f, 0,
MIN2(ws->info.vram_size, ws->info.gart_size),
radeon_bo_destroy,
radeon_bo_can_reclaim);

1
src/gallium/winsys/radeon/drm/radeon_drm_winsys.h
View file

@ -91,6 +91,7 @@ struct radeon_drm_winsys {
uint64_t va_offset;
struct list_head va_holes;
bool check_vm;
struct radeon_surface_manager *surf_man;