6.6-stable review patch. If anyone has any objections, please let me know.
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From: Ian Forbes ian.forbes@broadcom.com
[ Upstream commit 7872997c048e989c7689c2995d230fdca7798000 ]
Running 3D applications with SVGA_FORCE_HOST_BACKED=1 or using an ancient version of mesa was broken because the buffer was pinned in VMW_BO_DOMAIN_SYS and could not be moved to VMW_BO_DOMAIN_MOB during validation.
The compat_shader buffer should not pinned.
Fixes: 668b206601c5 ("drm/vmwgfx: Stop using raw ttm_buffer_object's") Signed-off-by: Ian Forbes ian.forbes@broadcom.com Reviewed-by: Maaz Mombasawala maaz.mombasawala@broadcom.com Signed-off-by: Zack Rusin zack.rusin@broadcom.com Link: https://lore.kernel.org/r/20250429203427.1742331-1-ian.forbes@broadcom.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/vmwgfx/vmwgfx_shader.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c index 7fb1c88bcc47..69dfe69ce0f8 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c @@ -896,7 +896,7 @@ int vmw_compat_shader_add(struct vmw_private *dev_priv, .busy_domain = VMW_BO_DOMAIN_SYS, .bo_type = ttm_bo_type_device, .size = size, - .pin = true, + .pin = false, .keep_resv = true, };