add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/include/uapi/drm/etnaviv_drm.h
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@@ -73,6 +73,7 @@
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 #define ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT         0x18
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 #define ETNAVIV_PARAM_GPU_NUM_CONSTANTS             0x19
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 #define ETNAVIV_PARAM_GPU_NUM_VARYINGS              0x1a
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+#define ETNAVIV_PARAM_SOFTPIN_START_ADDR            0x1b
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 #define ETNA_MAX_PIPES 4
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@@ -148,6 +149,11 @@
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  * then patching the cmdstream for this entry is skipped.  This can
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  * avoid kernel needing to map/access the cmdstream bo in the common
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  * case.
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+ * If the submit is a softpin submit (ETNA_SUBMIT_SOFTPIN) the 'presumed'
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+ * field is interpreted as the fixed location to map the bo into the gpu
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+ * virtual address space. If the kernel is unable to map the buffer at
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+ * this location the submit will fail. This means userspace is responsible
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+ * for the whole gpu virtual address management.
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  */
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 #define ETNA_SUBMIT_BO_READ             0x0001
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 #define ETNA_SUBMIT_BO_WRITE            0x0002
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@@ -177,9 +183,11 @@
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 #define ETNA_SUBMIT_NO_IMPLICIT         0x0001
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 #define ETNA_SUBMIT_FENCE_FD_IN         0x0002
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 #define ETNA_SUBMIT_FENCE_FD_OUT        0x0004
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+#define ETNA_SUBMIT_SOFTPIN             0x0008
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 #define ETNA_SUBMIT_FLAGS		(ETNA_SUBMIT_NO_IMPLICIT | \
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 					 ETNA_SUBMIT_FENCE_FD_IN | \
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-					 ETNA_SUBMIT_FENCE_FD_OUT)
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+					 ETNA_SUBMIT_FENCE_FD_OUT| \
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+					 ETNA_SUBMIT_SOFTPIN)
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 #define ETNA_PIPE_3D      0x00
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 #define ETNA_PIPE_2D      0x01
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 #define ETNA_PIPE_VG      0x02