drm/etnaviv: add function to load the initial PTA state
On GPUs with the security feature the MTLB config is stored in the PTA. Add a function to trigger the initial PTA load through the FE. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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@ -215,6 +215,24 @@ u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe
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return buffer->user_size / 8;
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}
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u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu)
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{
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struct etnaviv_cmdbuf *buffer = &gpu->buffer;
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lockdep_assert_held(&gpu->lock);
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buffer->user_size = 0;
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CMD_LOAD_STATE(buffer, VIVS_MMUv2_PTA_CONFIG,
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VIVS_MMUv2_PTA_CONFIG_INDEX(0));
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CMD_END(buffer);
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buffer->user_size = ALIGN(buffer->user_size, 8);
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return buffer->user_size / 8;
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}
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void etnaviv_buffer_end(struct etnaviv_gpu *gpu)
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{
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struct etnaviv_cmdbuf *buffer = &gpu->buffer;
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@ -86,6 +86,7 @@ int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
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uintptr_t ptr, u32 size, u32 flags, u32 *handle);
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u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
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u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
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u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu);
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void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
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void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
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void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
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