We need vulkan and gl to produce the same UUIDs. Therefore we should
keep the mechanism to compute these in a common location to guarantee
they are updated in lockstep.
Signed-off-by: Andres Rodriguez <andre...@gmail.com>
---
src/amd/common/ac_gpu_info.c | 27 +++++++++++++++++++++++++++
src/amd/common/ac_gpu_info.h | 5 +++++
2 files changed, 32 insertions(+)
diff --git a/src/amd/common/ac_gpu_info.c b/src/amd/common/ac_gpu_info.c
index 3f39a08..1b94468 100644
--- a/src/amd/common/ac_gpu_info.c
+++ b/src/amd/common/ac_gpu_info.c
@@ -301,3 +301,30 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
return true;
}
+void ac_compute_driver_uuid(char *uuid, size_t size)
+{
+ char amd_uuid[] = "AMD-MESA-DRV";
+
+ assert(size >= sizeof(amd_uuid));
+
+ memset(uuid, 0, size);
+ strncpy(uuid, amd_uuid, size);
+}
+
+void ac_compute_device_uuid(struct radeon_info *info, char *uuid, size_t size)
+{
+ uint32_t *uint_uuid = (uint32_t*)uuid;
+
+ assert(size >= sizeof(uint32_t)*4);
+
+ /**
+ * Use the device info directly instead of using a sha1. GL/VK UUIDs
+ * are 16 byte vs 20 byte for sha1, and the truncation that would be
+ * required would get rid of part of the little entropy we have.
+ * */
+ memset(uuid, 0, size);
+ uint_uuid[0] = info->pci_domain;
+ uint_uuid[1] = info->pci_bus;
+ uint_uuid[2] = info->pci_dev;
+ uint_uuid[3] = info->pci_func;
+}
diff --git a/src/amd/common/ac_gpu_info.h b/src/amd/common/ac_gpu_info.h
index 3091fed..516299a 100644
--- a/src/amd/common/ac_gpu_info.h
+++ b/src/amd/common/ac_gpu_info.h
@@ -26,6 +26,7 @@
#ifndef AC_GPU_INFO_H
#define AC_GPU_INFO_H
+#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include "amd_family.h"
@@ -104,6 +105,10 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
struct radeon_info *info,
struct amdgpu_gpu_info *amdinfo);
+void ac_compute_driver_uuid(char *uuid, size_t size);
+
+void ac_compute_device_uuid(struct radeon_info *info, char *uuid, size_t size);
+
#ifdef __cplusplus
}
#endif
--
2.9.3
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