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| author | Vitaly Prosyak <vitaly.prosyak@amd.com> | 2026-03-24 19:53:59 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-04-03 13:51:31 -0400 |
| commit | 1d0a26cf37c1b2e9928d2b61af6f282232b5daea (patch) | |
| tree | 171ca3662118d92298f181b2ba35b9fd79507548 /drivers/gpu | |
| parent | d290d6ee90b48b346978e8549b0bc0ba28c047fc (diff) | |
| download | linux-next-1d0a26cf37c1b2e9928d2b61af6f282232b5daea.tar.gz linux-next-1d0a26cf37c1b2e9928d2b61af6f282232b5daea.zip | |
drm/amdgpu: add CONFIG_GCOV_PROFILE_AMDGPU Kconfig option
Add a Kconfig option to enable GCOV code coverage profiling for the
amdgpu driver, following the established upstream pattern used by
CONFIG_GCOV_PROFILE_FTRACE (kernel/trace), CONFIG_GCOV_PROFILE_RDS
(net/rds), and CONFIG_GCOV_PROFILE_URING (io_uring).
This allows CI systems to enable amdgpu code coverage entirely via
.config (e.g., scripts/config --enable GCOV_PROFILE_AMDGPU) without
manually editing the amdgpu Makefile. The option depends on both
DRM_AMDGPU and GCOV_KERNEL, defaults to n, and is therefore never
enabled in production or distro builds.
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/Kconfig | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/Makefile | 4 |
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/Kconfig b/drivers/gpu/drm/amd/amdgpu/Kconfig index 7f515be5185d..7fb0b93bc1ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/Kconfig +++ b/drivers/gpu/drm/amd/amdgpu/Kconfig @@ -103,6 +103,23 @@ config DRM_AMDGPU_WERROR Add -Werror to the build flags for amdgpu.ko. Only enable this if you are warning code for amdgpu.ko. + +config GCOV_PROFILE_AMDGPU + bool "Enable GCOV profiling on amdgpu" + depends on DRM_AMDGPU + depends on GCOV_KERNEL + default n + help + Enable GCOV profiling on the amdgpu driver for checking which + functions/lines are executed during testing. This adds compiler + instrumentation flags to all amdgpu source files, producing + .gcda/.gcno coverage data accessible via debugfs. + + This increases the amdgpu module size by ~50% and adds ~2-5% + runtime overhead on GPU submission paths. + + If unsure, say N. + source "drivers/gpu/drm/amd/acp/Kconfig" source "drivers/gpu/drm/amd/display/Kconfig" source "drivers/gpu/drm/amd/amdkfd/Kconfig" diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile index 6a7e9bfec59e..db66c6372199 100644 --- a/drivers/gpu/drm/amd/amdgpu/Makefile +++ b/drivers/gpu/drm/amd/amdgpu/Makefile @@ -27,6 +27,10 @@ FULL_AMD_PATH=$(src)/.. DISPLAY_FOLDER_NAME=display FULL_AMD_DISPLAY_PATH = $(FULL_AMD_PATH)/$(DISPLAY_FOLDER_NAME) +ifdef CONFIG_GCOV_PROFILE_AMDGPU +GCOV_PROFILE := y +endif + ccflags-y := -I$(FULL_AMD_PATH)/include/asic_reg \ -I$(FULL_AMD_PATH)/include \ -I$(FULL_AMD_PATH)/amdgpu \ |