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kk: Add env variables to enable Xcode GPU capture

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To enable GPU capture set MESA_KK_GPU_CAPTURE to 1
To dump GPU capture to a directory set MESA_KK_GPU_CAPTURE_DIRECTORY

Reviewed-by: Arcady Goldmints-Orlov <arcady@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38068>
This commit is contained in:
Aitor Camacho 2025-10-26 00:06:21 -06:00 • committed by Marge Bot
parent 6aff9d0ae8
commit 8e47589da8
5 changed files with 19 additions and 63 deletions
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2
src/kosmickrisp/bridge/mtl_device.h
View file

@ -18,7 +18,7 @@ struct kk_image_layout;
mtl_device *mtl_device_create(void);
/* Device operations */
void mtl_start_gpu_capture(mtl_device *mtl_dev_handle);
void mtl_start_gpu_capture(mtl_device *mtl_dev_handle, const char *directory);
void mtl_stop_gpu_capture(void);
/* Device feature query */

32
src/kosmickrisp/bridge/mtl_device.m
View file

@ -38,41 +38,29 @@ mtl_device_create()
/* Device operations */
void
mtl_start_gpu_capture(mtl_device *mtl_dev_handle)
mtl_start_gpu_capture(mtl_device *mtl_dev_handle, const char *directory)
{
@autoreleasepool {
id<MTLDevice> mtl_dev = (id<MTLDevice>)mtl_dev_handle;
MTLCaptureManager *captureMgr = [MTLCaptureManager sharedCaptureManager];
// Before macOS 10.15 and iOS 13.0, captureDesc will just be nil
MTLCaptureDescriptor *captureDesc = [[MTLCaptureDescriptor new] autorelease];
captureDesc.captureObject = mtl_dev;
captureDesc.destination = MTLCaptureDestinationDeveloperTools;
// TODO_KOSMICKRISP Support dumping a trace to a file?
// NSString *tmp_dir = NSTemporaryDirectory();
// NSString *pname = [[NSProcessInfo processInfo] processName];
// NSString *capture_path = [NSString stringWithFormat:@"%@/%@.gputrace", tmp_dir, pname];
// if ([captureMgr supportsDestination: MTLCaptureDestinationGPUTraceDocument] ) {
// captureDesc.destination = MTLCaptureDestinationGPUTraceDocument;
// captureDesc.outputURL = [NSURL fileURLWithPath: capture_path];
//}
if (directory && [captureMgr supportsDestination: MTLCaptureDestinationGPUTraceDocument]) {
NSString *dir = [NSString stringWithUTF8String:directory];
NSString *pname = [[NSProcessInfo processInfo] processName];
NSString *capture_path = [NSString stringWithFormat:@"%@/%@.gputrace", dir, pname];
captureDesc.destination = MTLCaptureDestinationGPUTraceDocument;
captureDesc.outputURL = [NSURL fileURLWithPath: capture_path];
}
NSError *err = nil;
if (![captureMgr startCaptureWithDescriptor:captureDesc error:&err]) {
// fprintf(stderr, "Failed to automatically start GPU capture session (Error code %li) using startCaptureWithDescriptor: %s\n",
// (long)err.code, err.localizedDescription.UTF8String);
// fprintf(stderr, "Using startCaptureWithDevice\n");
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[captureMgr startCaptureWithDevice:mtl_dev];
#pragma clang diagnostic pop
fprintf(stderr, "Failed to automatically start GPU capture session (Error code %li) using startCaptureWithDescriptor: %s\n",
(long)err.code, err.localizedDescription.UTF8String);
}
//[tmp_dir release];
//[pname release];
//[capture_path release];
}
}

2
src/kosmickrisp/bridge/stubs/mtl_device.c
View file

@ -15,7 +15,7 @@ mtl_device_create(void)
/* Device operations */
void
mtl_start_gpu_capture(mtl_device *mtl_dev_handle)
mtl_start_gpu_capture(mtl_device *mtl_dev_handle, const char *directory)
{
}

9
src/kosmickrisp/vulkan/kk_device.c
View file

@ -213,8 +213,13 @@ kk_CreateDevice(VkPhysicalDevice physicalDevice,
*pDevice = kk_device_to_handle(dev);
dev->gpu_capture_enabled = kk_get_environment_boolean(KK_ENABLE_GPU_CAPTURE);
mtl_start_gpu_capture(dev->mtl_handle);
dev->gpu_capture_enabled =
debug_get_bool_option("MESA_KK_GPU_CAPTURE", false);
if (dev->gpu_capture_enabled) {
const char *capture_directory =
debug_get_option("MESA_KK_GPU_CAPTURE_DIRECTORY", NULL);
mtl_start_gpu_capture(dev->mtl_handle, capture_directory);
}
return VK_SUCCESS;

37
src/kosmickrisp/vulkan/kk_private.h
View file

@ -55,41 +55,4 @@ struct kk_addr_range {
uint64_t range;
};
typedef enum kk_env_option_t {
KK_ENABLE_GPU_CAPTURE = 0,
KK_MAX_ENV_OPTIONS,
} kk_env_option_t;
struct kk_env_option {
const char *name;
bool value;
};
static struct kk_env_option KK_ENV_OPTIONS[KK_MAX_ENV_OPTIONS] = {
[KK_ENABLE_GPU_CAPTURE] =
{
.name = "MESA_KOSMICKRISP_ENABLE_GPU_CAPTURE",
.value = false,
},
};
static inline bool
kk_get_environment_boolean(kk_env_option_t option)
{
assert(option >= 0 && option < KK_MAX_ENV_OPTIONS);
struct kk_env_option *opt = &KK_ENV_OPTIONS[option];
const char *env_str = getenv(opt->name);
if (env_str) {
if (strncmp(env_str, "0", 1) != 0) {
opt->value = true;
} else {
opt->value = false;
}
}
return opt->value;
}
#define kk_debug_ignored_stype(sType) \
mesa_logd("%s: ignored VkStructureType %u\n", __func__, (sType))
#endif