sync with OpenBSD -current

sys/dev/pci/drm/amd/amdgpu/amdgpu_doorbell.h

@@ -21,6 +21,9 @@
  *
  */
 
+#ifndef AMDGPU_DOORBELL_H
+#define AMDGPU_DOORBELL_H
+
 /*
  * GPU doorbell structures, functions & helpers
  */
@@ -28,10 +31,15 @@ struct amdgpu_doorbell {
 	/* doorbell mmio */
 	resource_size_t		base;
 	resource_size_t		size;
-	u32 __iomem		*ptr;
-	bus_space_tag_t		bst;
-	bus_space_handle_t	bsh;
-	u32			num_doorbells;	/* Number of doorbells actually reserved for amdgpu. */
+
+	/* Number of doorbells reserved for amdgpu kernel driver */
+	u32 num_kernel_doorbells;
+
+	/* Kernel doorbells */
+	struct amdgpu_bo *kernel_doorbells;
+
+	/* For CPU access of doorbells */
+	uint32_t *cpu_addr;
 };
 
 /* Reserved doorbells for amdgpu (including multimedia).
@@ -56,7 +64,7 @@ struct amdgpu_doorbell_index {
 	uint32_t gfx_ring1;
 	uint32_t gfx_userqueue_start;
 	uint32_t gfx_userqueue_end;
-	uint32_t sdma_engine[8];
+	uint32_t sdma_engine[16];
 	uint32_t mes_ring0;
 	uint32_t mes_ring1;
 	uint32_t ih;
@@ -83,10 +91,11 @@ struct amdgpu_doorbell_index {
 	uint32_t max_assignment;
 	/* Per engine SDMA doorbell size in dword */
 	uint32_t sdma_doorbell_range;
+	/* Per xcc doorbell size for KIQ/KCQ */
+	uint32_t xcc_doorbell_range;
 };
 
-typedef enum _AMDGPU_DOORBELL_ASSIGNMENT
-{
+enum AMDGPU_DOORBELL_ASSIGNMENT {
 	AMDGPU_DOORBELL_KIQ                     = 0x000,
 	AMDGPU_DOORBELL_HIQ                     = 0x001,
 	AMDGPU_DOORBELL_DIQ                     = 0x002,
@@ -104,10 +113,10 @@ typedef enum _AMDGPU_DOORBELL_ASSIGNMENT
 	AMDGPU_DOORBELL_IH                      = 0x1E8,
 	AMDGPU_DOORBELL_MAX_ASSIGNMENT          = 0x3FF,
 	AMDGPU_DOORBELL_INVALID                 = 0xFFFF
-} AMDGPU_DOORBELL_ASSIGNMENT;
+};
+
+enum AMDGPU_VEGA20_DOORBELL_ASSIGNMENT {
 
-typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT
-{
 	/* Compute + GFX: 0~255 */
 	AMDGPU_VEGA20_DOORBELL_KIQ                     = 0x000,
 	AMDGPU_VEGA20_DOORBELL_HIQ                     = 0x001,
@@ -161,12 +170,20 @@ typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT
 	AMDGPU_VEGA20_DOORBELL64_FIRST_NON_CP            = AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0,
 	AMDGPU_VEGA20_DOORBELL64_LAST_NON_CP             = AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7,
 
-	AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT            = 0x18F,
-	AMDGPU_VEGA20_DOORBELL_INVALID                   = 0xFFFF
-} AMDGPU_VEGA20_DOORBELL_ASSIGNMENT;
+	/* kiq/kcq from second XCD. Max 8 XCDs */
+	AMDGPU_VEGA20_DOORBELL_XCC1_KIQ_START             = 0x190,
+	/* 8 compute rings per GC. Max to 0x1CE */
+	AMDGPU_VEGA20_DOORBELL_XCC1_MEC_RING0_START       = 0x197,
+
+	/* AID1 SDMA: 0x1D0 ~ 0x1F7 */
+	AMDGPU_VEGA20_DOORBELL_AID1_sDMA_START           = 0x1D0,
+
+	AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT            = 0x1F7,
+	AMDGPU_VEGA20_DOORBELL_INVALID                   = 0xFFFF
+};
+
+enum AMDGPU_NAVI10_DOORBELL_ASSIGNMENT {
 
-typedef enum _AMDGPU_NAVI10_DOORBELL_ASSIGNMENT
-{
 	/* Compute + GFX: 0~255 */
 	AMDGPU_NAVI10_DOORBELL_KIQ			= 0x000,
 	AMDGPU_NAVI10_DOORBELL_HIQ			= 0x001,
@@ -214,13 +231,12 @@ typedef enum _AMDGPU_NAVI10_DOORBELL_ASSIGNMENT
 
 	AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT		= 0x18F,
 	AMDGPU_NAVI10_DOORBELL_INVALID			= 0xFFFF
-} AMDGPU_NAVI10_DOORBELL_ASSIGNMENT;
+};
 
 /*
  * 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space
  */
-typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT
-{
+enum AMDGPU_DOORBELL64_ASSIGNMENT {
 	/*
 	 * All compute related doorbells: kiq, hiq, diq, traditional compute queue, user queue, should locate in
 	 * a continues range so that programming CP_MEC_DOORBELL_RANGE_LOWER/UPPER can cover this range.
@@ -296,15 +312,58 @@ typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT
 
 	AMDGPU_DOORBELL64_MAX_ASSIGNMENT          = 0xFF,
 	AMDGPU_DOORBELL64_INVALID                 = 0xFFFF
-} AMDGPU_DOORBELL64_ASSIGNMENT;
+};
+
+enum AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1 {
+
+	/* XCC0: 0x00 ~20, XCC1: 20 ~ 2F ... */
+
+	/* KIQ/HIQ/DIQ */
+	AMDGPU_DOORBELL_LAYOUT1_KIQ_START		= 0x000,
+	AMDGPU_DOORBELL_LAYOUT1_HIQ			= 0x001,
+	AMDGPU_DOORBELL_LAYOUT1_DIQ			= 0x002,
+	/* Compute: 0x08 ~ 0x20  */
+	AMDGPU_DOORBELL_LAYOUT1_MEC_RING_START		= 0x008,
+	AMDGPU_DOORBELL_LAYOUT1_MEC_RING_END		= 0x00F,
+	AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_START		= 0x010,
+	AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_END		= 0x01F,
+	AMDGPU_DOORBELL_LAYOUT1_XCC_RANGE		= 0x020,
+
+	/* SDMA: 0x100 ~ 0x19F */
+	AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_START	= 0x100,
+	AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_END		= 0x19F,
+	/* IH: 0x1A0 ~ 0x1AF */
+	AMDGPU_DOORBELL_LAYOUT1_IH                      = 0x1A0,
+	/* VCN: 0x1B0 ~ 0x1E8 */
+	AMDGPU_DOORBELL_LAYOUT1_VCN_START               = 0x1B0,
+	AMDGPU_DOORBELL_LAYOUT1_VCN_END                 = 0x1E8,
+
+	AMDGPU_DOORBELL_LAYOUT1_FIRST_NON_CP		= AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_START,
+	AMDGPU_DOORBELL_LAYOUT1_LAST_NON_CP		= AMDGPU_DOORBELL_LAYOUT1_VCN_END,
+
+	AMDGPU_DOORBELL_LAYOUT1_MAX_ASSIGNMENT          = 0x1E8,
+	AMDGPU_DOORBELL_LAYOUT1_INVALID                 = 0xFFFF
+};
 
 u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index);
 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v);
 u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index);
 void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v);
 
+/*
+ * GPU doorbell aperture helpers function.
+ */
+int amdgpu_doorbell_init(struct amdgpu_device *adev);
+void amdgpu_doorbell_fini(struct amdgpu_device *adev);
+int amdgpu_doorbell_create_kernel_doorbells(struct amdgpu_device *adev);
+uint32_t amdgpu_doorbell_index_on_bar(struct amdgpu_device *adev,
+				      struct amdgpu_bo *db_bo,
+				      uint32_t doorbell_index,
+				      uint32_t db_size);
+
 #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index))
 #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v))
 #define RDOORBELL64(index) amdgpu_mm_rdoorbell64(adev, (index))
 #define WDOORBELL64(index, v) amdgpu_mm_wdoorbell64(adev, (index), (v))
 
+#endif