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.st...@pengutronix.de>
---
drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 18 ++++++++++++++++++
drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 +
2 files changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
index 99ad2f073c6e..bfc6d4aa3b7c 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -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;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
index a54f0b758a5c..7aff2df84902 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
@@ -85,6 +85,7 @@ 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,
--
2.11.0
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