Commit 1137bef6 authored by Lucas Stach's avatar Lucas Stach

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: default avatarLucas Stach <l.stach@pengutronix.de>
parent c997c3df
......@@ -215,6 +215,24 @@ u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe
return buffer->user_size / 8;
}
u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu)
{
struct etnaviv_cmdbuf *buffer = &gpu->buffer;
lockdep_assert_held(&gpu->lock);
buffer->user_size = 0;
CMD_LOAD_STATE(buffer, VIVS_MMUv2_PTA_CONFIG,
VIVS_MMUv2_PTA_CONFIG_INDEX(0));
CMD_END(buffer);
buffer->user_size = ALIGN(buffer->user_size, 8);
return buffer->user_size / 8;
}
void etnaviv_buffer_end(struct etnaviv_gpu *gpu)
{
struct etnaviv_cmdbuf *buffer = &gpu->buffer;
......
......@@ -86,6 +86,7 @@ int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
uintptr_t ptr, u32 size, u32 flags, u32 *handle);
u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu);
void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
......
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