6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> [ Upstream commit f9116f658a6217b101e3b4e89f845775b6fb05d9 ] Any kunit doing any memory access should get their own runtime_pm outer references since they don't use the standard driver API entries. In special this dma_buf from the same driver. Found by pre-merge CI on adding WARN calls for unprotected inner callers: <6> [318.639739] # xe_dma_buf_kunit: running xe_test_dmabuf_import_same_driver <4> [318.639957] ------------[ cut here ]------------ <4> [318.639967] xe 0000:4d:00.0: Missing outer runtime PM protection <4> [318.640049] WARNING: CPU: 117 PID: 3832 at drivers/gpu/drm/xe/xe_pm.c:533 xe_pm_runtime_get_noresume+0x48/0x60 [xe] Cc: Matthew Auld <matthew.auld@xxxxxxxxx> Cc: Francois Dugast <francois.dugast@xxxxxxxxx> Reviewed-by: Matthew Brost <matthew.brost@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20240417203952.25503-10-rodrigo.vivi@xxxxxxxxx Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/gpu/drm/xe/tests/xe_dma_buf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/xe/tests/xe_dma_buf.c b/drivers/gpu/drm/xe/tests/xe_dma_buf.c index 9f6d571d7fa9c..a3d2dd42adf96 100644 --- a/drivers/gpu/drm/xe/tests/xe_dma_buf.c +++ b/drivers/gpu/drm/xe/tests/xe_dma_buf.c @@ -12,6 +12,7 @@ #include "tests/xe_pci_test.h" #include "xe_pci.h" +#include "xe_pm.h" static bool p2p_enabled(struct dma_buf_test_params *params) { @@ -259,6 +260,7 @@ static int dma_buf_run_device(struct xe_device *xe) const struct dma_buf_test_params *params; struct kunit *test = xe_cur_kunit(); + xe_pm_runtime_get(xe); for (params = test_params; params->mem_mask; ++params) { struct dma_buf_test_params p = *params; @@ -266,6 +268,7 @@ static int dma_buf_run_device(struct xe_device *xe) test->priv = &p; xe_test_dmabuf_import_same_driver(xe); } + xe_pm_runtime_put(xe); /* A non-zero return would halt iteration over driver devices */ return 0; -- 2.43.0
