[Mesa-dev] [PATCH] radv/winsys: implement query_value()

[Samuel Pitoiset]

Might be useful to know the VRAM/GTT usage, the number of VRAM
CPU page faults, etc. Nothing is currently using that new
interface, but it's a first step.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/vulkan/radv_radeon_winsys.h               | 16 +++++++
 src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.c | 56 +++++++++++++++++++++++
 2 files changed, 72 insertions(+)

diff --git a/src/amd/vulkan/radv_radeon_winsys.h b/src/amd/vulkan/radv_radeon_winsys.h
index 66a2bcccb4..2b815d9c5a 100644
--- a/src/amd/vulkan/radv_radeon_winsys.h
+++ b/src/amd/vulkan/radv_radeon_winsys.h
@@ -80,6 +80,19 @@ enum radeon_ctx_priority {
 	RADEON_CTX_PRIORITY_REALTIME,
 };
 
+enum radeon_value_id {
+	RADEON_TIMESTAMP,
+	RADEON_NUM_BYTES_MOVED,
+	RADEON_NUM_EVICTIONS,
+	RADEON_NUM_VRAM_CPU_PAGE_FAULTS,
+	RADEON_VRAM_USAGE,
+	RADEON_VRAM_VIS_USAGE,
+	RADEON_GTT_USAGE,
+	RADEON_GPU_TEMPERATURE,
+	RADEON_CURRENT_SCLK,
+	RADEON_CURRENT_MCLK,
+};
+
 struct radeon_winsys_cs {
 	unsigned cdw;  /* Number of used dwords. */
 	unsigned max_dw; /* Maximum number of dwords. */
@@ -169,6 +182,9 @@ struct radeon_winsys {
 	void (*query_info)(struct radeon_winsys *ws,
 			   struct radeon_info *info);
 
+	uint64_t (*query_value)(struct radeon_winsys *ws,
+				enum radeon_value_id value);
+
 	bool (*read_registers)(struct radeon_winsys *ws, unsigned reg_offset,
 			       unsigned num_registers, uint32_t *out);
 
diff --git a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.c b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.c
index fec1c5ad65..0c6374e71c 100644
--- a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.c
+++ b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.c
@@ -71,6 +71,61 @@ static void radv_amdgpu_winsys_query_info(struct radeon_winsys *rws,
 	*info = ((struct radv_amdgpu_winsys *)rws)->info;
 }
 
+static uint64_t radv_amdgpu_winsys_query_value(struct radeon_winsys *rws,
+					       enum radeon_value_id value)
+{
+	struct radv_amdgpu_winsys *ws = (struct radv_amdgpu_winsys *)rws;
+	struct amdgpu_heap_info heap;
+	uint64_t retval = 0;
+
+	switch (value) {
+	case RADEON_TIMESTAMP:
+		amdgpu_query_info(ws->dev, AMDGPU_INFO_TIMESTAMP, 8, &retval);
+		return retval;
+	case RADEON_NUM_BYTES_MOVED:
+		amdgpu_query_info(ws->dev, AMDGPU_INFO_NUM_BYTES_MOVED,
+				  8, &retval);
+		return retval;
+	case RADEON_NUM_EVICTIONS:
+		amdgpu_query_info(ws->dev, AMDGPU_INFO_NUM_EVICTIONS,
+				  8, &retval);
+		return retval;
+	case RADEON_NUM_VRAM_CPU_PAGE_FAULTS:
+		amdgpu_query_info(ws->dev, AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS,
+				  8, &retval);
+		return retval;
+	case RADEON_VRAM_USAGE:
+		amdgpu_query_heap_info(ws->dev, AMDGPU_GEM_DOMAIN_VRAM,
+				       0, &heap);
+		return heap.heap_usage;
+	case RADEON_VRAM_VIS_USAGE:
+		amdgpu_query_heap_info(ws->dev, AMDGPU_GEM_DOMAIN_VRAM,
+				       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+				       &heap);
+		return heap.heap_usage;
+	case RADEON_GTT_USAGE:
+		amdgpu_query_heap_info(ws->dev, AMDGPU_GEM_DOMAIN_GTT,
+				       0, &heap);
+		return heap.heap_usage;
+	case RADEON_GPU_TEMPERATURE:
+		amdgpu_query_sensor_info(ws->dev, AMDGPU_INFO_SENSOR_GPU_TEMP,
+					 4, &retval);
+		return retval;
+	case RADEON_CURRENT_SCLK:
+		amdgpu_query_sensor_info(ws->dev, AMDGPU_INFO_SENSOR_GFX_SCLK,
+					 4, &retval);
+		return retval;
+	case RADEON_CURRENT_MCLK:
+		amdgpu_query_sensor_info(ws->dev, AMDGPU_INFO_SENSOR_GFX_MCLK,
+					 4, &retval);
+		return retval;
+	default:
+		unreachable("invalid query value");
+	}
+
+	return 0;
+}
+
 static bool radv_amdgpu_winsys_read_registers(struct radeon_winsys *rws,
 					      unsigned reg_offset,
 					      unsigned num_registers, uint32_t *out)
@@ -127,6 +182,7 @@ radv_amdgpu_winsys_create(int fd, uint64_t debug_flags, uint64_t perftest_flags)
 	LIST_INITHEAD(&ws->global_bo_list);
 	pthread_mutex_init(&ws->global_bo_list_lock, NULL);
 	ws->base.query_info = radv_amdgpu_winsys_query_info;
+	ws->base.query_value = radv_amdgpu_winsys_query_value;
 	ws->base.read_registers = radv_amdgpu_winsys_read_registers;
 	ws->base.get_chip_name = radv_amdgpu_winsys_get_chip_name;
 	ws->base.destroy = radv_amdgpu_winsys_destroy;
-- 
2.15.1