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drm/vmwgfx: Add new keep_resv BO param

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Adds a new BO param that keeps the reservation locked after creation.
This removes the need to re-reserve the BO after creation which is a
waste of cycles.

This also fixes a bug in vmw_prime_import_sg_table where the imported
reservation is unlocked twice.

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Fixes: b32233acce ("drm/vmwgfx: Fix prime import/export")
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250110185335.15301-1-ian.forbes@broadcom.com
This commit is contained in:
Ian Forbes
2025-01-10 12:53:35 -06:00
committed by Zack Rusin
parent 9cdebfa97d
commit b7d4062781
6 changed files with 11 additions and 15 deletions
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5
drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
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@@ -572,15 +572,14 @@ int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
.busy_domain = domain,
.bo_type = ttm_bo_type_kernel,
.size = bo_size,
.pin = true
.pin = true,
.keep_resv = true,
};
ret = vmw_bo_create(dev_priv, &bo_params, &vbo);
if (unlikely(ret != 0))
return ret;
ret = ttm_bo_reserve(&vbo->tbo, false, true, NULL);
BUG_ON(ret != 0);
ret = vmw_ttm_populate(vbo->tbo.bdev, vbo->tbo.ttm, &ctx);
if (likely(ret == 0)) {
struct vmw_ttm_tt *vmw_tt =