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radeonsi: add a debug flag to zero vram allocations

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This allows to avoid having to see garbage in Dying Light loading screen
at least, which probably expects Windows/NV behavior of all allocations
being zeroed by default.

Analogous to radv flag with the same name.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Grazvydas Ignotas 2018-06-20 22:17:39 +03:00
parent 4e0d93dc0e
commit f966929805
5 changed files with 7 additions and 0 deletions
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1
src/gallium/drivers/radeonsi/si_pipe.c
View file

@ -82,6 +82,7 @@ static const struct debug_named_value debug_options[] = {
{ "nowc", DBG(NO_WC), "Disable GTT write combining" },
{ "check_vm", DBG(CHECK_VM), "Check VM faults and dump debug info." },
{ "reserve_vmid", DBG(RESERVE_VMID), "Force VMID reservation per context." },
{ "zerovram", DBG(ZERO_VRAM), "Clear VRAM allocations." },
/* 3D engine options: */
{ "switch_on_eop", DBG(SWITCH_ON_EOP), "Program WD/IA to switch on end-of-packet." },

1
src/gallium/drivers/radeonsi/si_pipe.h
View file

@ -141,6 +141,7 @@ enum {
DBG_NO_WC,
DBG_CHECK_VM,
DBG_RESERVE_VMID,
DBG_ZERO_VRAM,
/* 3D engine options: */
DBG_SWITCH_ON_EOP,

3
src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
View file

@ -428,6 +428,9 @@ static struct amdgpu_winsys_bo *amdgpu_create_bo(struct amdgpu_winsys *ws,
if (flags & RADEON_FLAG_NO_INTERPROCESS_SHARING &&
ws->info.has_local_buffers)
request.flags |= AMDGPU_GEM_CREATE_VM_ALWAYS_VALID;
if (ws->zero_all_vram_allocs &&
(request.preferred_heap & AMDGPU_GEM_DOMAIN_VRAM))
request.flags |= AMDGPU_GEM_CREATE_VRAM_CLEARED;
r = amdgpu_bo_alloc(ws->dev, &request, &buf_handle);
if (r) {

1
src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
View file

@ -62,6 +62,7 @@ static bool do_winsys_init(struct amdgpu_winsys *ws, int fd)
ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL;
ws->debug_all_bos = debug_get_option_all_bos();
ws->reserve_vmid = strstr(debug_get_option("R600_DEBUG", ""), "reserve_vmid") != NULL;
ws->zero_all_vram_allocs = strstr(debug_get_option("R600_DEBUG", ""), "zerovram") != NULL;
return true;

1
src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h
View file

@ -79,6 +79,7 @@ struct amdgpu_winsys {
bool check_vm;
bool debug_all_bos;
bool reserve_vmid;
bool zero_all_vram_allocs;
/* List of all allocated buffers */
simple_mtx_t global_bo_list_lock;