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zink: return 256 for PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT

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this isn't the minimum allowed by the driver, but zink doesn't return
the minimum allowed by the driver anyway and hasn't in a very long time

instead, it suballocates using a minimum alignment of 256 bytes, so use
that instead

fixes (in caselists):
KHR-GL46.map_buffer_alignment.functional

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14720>
This commit is contained in:
Mike Blumenkrantz 2022-01-25 13:47:12 -05:00 • committed by Marge Bot
parent a7ae3bcdf8
commit 8bca29dcf0
3 changed files with 3 additions and 2 deletions
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2
src/gallium/drivers/zink/zink_bo.c
View file

@ -1184,7 +1184,7 @@ zink_bo_init(struct zink_screen *screen)
total_mem / 8, screen,
(void*)bo_destroy, (void*)bo_can_reclaim);
unsigned min_slab_order = 8; /* 256 bytes */
unsigned min_slab_order = MIN_SLAB_ORDER; /* 256 bytes */
unsigned max_slab_order = 20; /* 1 MB (slab size = 2 MB) */
unsigned num_slab_orders_per_allocator = (max_slab_order - min_slab_order) /
NUM_SLAB_ALLOCATORS;

2
src/gallium/drivers/zink/zink_screen.c
View file

@ -554,7 +554,7 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
screen->timestamp_valid_bits > 0;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return screen->info.props.limits.minMemoryMapAlignment;
return 1 << MIN_SLAB_ORDER;
case PIPE_CAP_CUBE_MAP_ARRAY:
return screen->info.feats.features.imageCubeArray;

1
src/gallium/drivers/zink/zink_screen.h
View file

@ -61,6 +61,7 @@ enum zink_descriptor_type;
#define ZINK_DEBUG_VALIDATION 0x8
#define NUM_SLAB_ALLOCATORS 3
#define MIN_SLAB_ORDER 8
enum zink_descriptor_mode {
ZINK_DESCRIPTOR_MODE_AUTO,