Discussion:
[PATCH] radv/winsys: implement query_value()
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Samuel Pitoiset
2017-12-06 11:06:43 UTC
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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 <***@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
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