4.18-stable review patch. If anyone has any objections, please let me know.
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From: Lucas Stach l.stach@pengutronix.de
[ Upstream commit 5b147465532365dc4e2fee8499d6ca1f52dd0d16 ]
When the suballocator was unable to provide a suitable buffer for the MMUv1 linear window, we roll back the GPU initialization. As the GPU is runtime resumed at that point we need to clear the kernel cmdbuf suballoc entry to properly skip any attempt to manipulate the cmdbuf when the GPU gets shut down in the runtime suspend later on.
Signed-off-by: Lucas Stach l.stach@pengutronix.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -799,6 +799,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu
free_buffer: etnaviv_cmdbuf_free(&gpu->buffer); + gpu->buffer.suballoc = NULL; destroy_iommu: etnaviv_iommu_destroy(gpu->mmu); gpu->mmu = NULL;