[igt-dev] [PATCH i-g-t 04/17] Add basic PXP testing of buffer and context alloc
Alan Previn
alan.previn.teres.alexis at intel.com
Tue May 18 10:33:31 UTC 2021
Test PXP capability support as well as the allocation of protected
buffers and protected contexts.
Signed-off-by: Alan Previn <alan.previn.teres.alexis at intel.com>
---
tests/i915/gem_pxp.c | 353 +++++++++++++++++++++++++++++++++++++++++++
tests/meson.build | 1 +
2 files changed, 354 insertions(+)
create mode 100644 tests/i915/gem_pxp.c
diff --git a/tests/i915/gem_pxp.c b/tests/i915/gem_pxp.c
new file mode 100644
index 00000000..8779dddc
--- /dev/null
+++ b/tests/i915/gem_pxp.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include "igt.h"
+#include "i915/gem.h"
+
+IGT_TEST_DESCRIPTION("Test PXP that manages protected content through arbitrated HW-PXP-session");
+/* Note: PXP = "Protected Xe Path" */
+
+static bool is_pxp_hw_supported(int i915)
+{
+ uint32_t devid = intel_get_drm_devid(i915);
+
+ if (IS_TIGERLAKE(devid) || IS_ROCKETLAKE(devid) || IS_ALDERLAKE_S(devid))
+ return true;
+
+ return false;
+}
+
+static int create_bo_ext(int i915, uint32_t size, bool protected_is_true, uint32_t *bo_out)
+{
+ int ret;
+
+ struct drm_i915_gem_create_ext_protected_content protected_ext = {
+ .base = { .name = I915_GEM_CREATE_EXT_PROTECTED_CONTENT },
+ .flags = 0,
+ };
+
+ struct drm_i915_gem_create_ext create_ext = {
+ .size = size,
+ .extensions = 0,
+ };
+
+ if (protected_is_true)
+ create_ext.extensions = (uintptr_t)&protected_ext;
+
+ ret = igt_ioctl(i915, DRM_IOCTL_I915_GEM_CREATE_EXT, &create_ext);
+ if (!ret)
+ *bo_out = create_ext.handle;
+
+ return ret;
+}
+
+static void test_bo_alloc_pxp_nohw(int i915)
+{
+ int ret;
+ uint32_t bo;
+
+ ret = create_bo_ext(i915, 4096, false, &bo);
+ igt_assert_eq(ret, 0);
+ gem_close(i915, bo);
+
+ ret = create_bo_ext(i915, 4096, true, &bo);
+ igt_assert_eq(ret, -ENODEV);
+ igt_assert_eq(bo, 0);
+}
+
+static void test_bo_alloc_pxp_off(int i915)
+{
+ int ret;
+ uint32_t bo;
+
+ ret = create_bo_ext(i915, 4096, false, &bo);
+ igt_assert_eq(ret, 0);
+ gem_close(i915, bo);
+}
+
+static void test_bo_alloc_pxp_on(int i915)
+{
+ int ret;
+ uint32_t bo;
+
+ ret = create_bo_ext(i915, 4096, true, &bo);
+ igt_assert_eq(ret, 0);
+ gem_close(i915, bo);
+}
+
+static int create_ctx_with_params(int i915, bool with_protected_param, bool protected_is_true,
+ bool with_recoverable_param, bool recoverable_is_true,
+ uint32_t *ctx_out)
+{
+ int ret;
+
+ struct drm_i915_gem_context_create_ext_setparam p_prot = {
+ .base = {
+ .name = I915_CONTEXT_CREATE_EXT_SETPARAM,
+ .next_extension = 0,
+ },
+ .param = {
+ .param = I915_CONTEXT_PARAM_PROTECTED_CONTENT,
+ .value = 0,
+ }
+ };
+ struct drm_i915_gem_context_create_ext_setparam p_norecover = {
+ .base = {
+ .name = I915_CONTEXT_CREATE_EXT_SETPARAM,
+ .next_extension = 0,
+ },
+ .param = {
+ .param = I915_CONTEXT_PARAM_RECOVERABLE,
+ .value = 0,
+ }
+ };
+ struct drm_i915_gem_context_create_ext create = {
+ .flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
+ .extensions = 0,
+ };
+
+ p_prot.param.value = protected_is_true;
+ p_norecover.param.value = recoverable_is_true;
+
+ if (with_protected_param && with_recoverable_param) {
+ create.extensions = to_user_pointer(&(p_norecover.base));
+ p_norecover.base.next_extension = to_user_pointer(&(p_prot.base));
+ } else if (!with_protected_param && with_recoverable_param) {
+ create.extensions = to_user_pointer(&(p_norecover.base));
+ p_norecover.base.next_extension = 0;
+ } else if (with_protected_param && !with_recoverable_param) {
+ create.extensions = to_user_pointer(&(p_prot.base));
+ p_prot.base.next_extension = 0;
+ } else if (!with_protected_param && !with_recoverable_param) {
+ create.flags = 0;
+ }
+
+ ret = __gem_ctx_create_ext(i915, &create);
+ if (!ret)
+ *ctx_out = create.ctx_id;
+
+ return ret;
+}
+
+#define CHANGE_PARAM_PROTECTED 0x0001
+#define CHANGE_PARAM_RECOVERY 0x0002
+
+static int modify_ctx_param(int i915, uint32_t ctx_id, uint32_t param_mask, bool param_value)
+{
+ int ret;
+
+ struct drm_i915_gem_context_param ctx_param = {
+ .ctx_id = ctx_id,
+ .param = 0,
+ .value = 0,
+ };
+
+ if (param_mask == CHANGE_PARAM_PROTECTED) {
+ ctx_param.param = I915_CONTEXT_PARAM_PROTECTED_CONTENT;
+ ctx_param.value = (int)param_value;
+ } else if (param_mask == CHANGE_PARAM_RECOVERY) {
+ ctx_param.param = I915_CONTEXT_PARAM_RECOVERABLE;
+ ctx_param.value = (int)param_value;
+ }
+
+ ret = igt_ioctl(i915, DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM, &ctx_param);
+
+ return ret;
+}
+
+static int get_ctx_protected_param(int i915, uint32_t ctx_id)
+{
+ int ret;
+
+ struct drm_i915_gem_context_param ctx_param = {
+ .ctx_id = ctx_id,
+ .param = I915_CONTEXT_PARAM_PROTECTED_CONTENT,
+ };
+
+ ret = igt_ioctl(i915, DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM, &ctx_param);
+ igt_assert_eq(ret, 0);
+
+ return ctx_param.value;
+}
+
+static int get_ctx_recovery_param(int i915, uint32_t ctx_id)
+{
+ int ret;
+
+ struct drm_i915_gem_context_param ctx_param = {
+ .ctx_id = ctx_id,
+ .param = I915_CONTEXT_PARAM_RECOVERABLE,
+ };
+
+ ret = igt_ioctl(i915, DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM, &ctx_param);
+ igt_assert_eq(ret, 0);
+
+ return ctx_param.value;
+}
+
+static void test_ctx_alloc_pxp_nohw(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, true, true, false, &ctx), -ENODEV);
+ igt_assert_eq(create_ctx_with_params(i915, true, false, true, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 0);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_alloc_recover_off_protect_off(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, false, true, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 0);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_alloc_recover_off_protect_on(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, true, true, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 1);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_alloc_recover_on_protect_off(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, false, true, true, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 0);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 1);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_alloc_recover_on_protect_on(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, true, true, true, &ctx), -EPERM);
+ igt_assert_eq(create_ctx_with_params(i915, true, true, false, false, &ctx), -EPERM);
+}
+
+static void test_ctx_mod_recover_off_to_on(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, true, true, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 1);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ igt_assert_eq(modify_ctx_param(i915, ctx, CHANGE_PARAM_RECOVERY, true), -EPERM);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_mod_protected_on_to_off(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, true, true, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 1);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ igt_assert_eq(modify_ctx_param(i915, ctx, CHANGE_PARAM_PROTECTED, false), -EPERM);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 1);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_mod_protected_to_all_invalid(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, true, true, true, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 1);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ igt_assert_eq(modify_ctx_param(i915, ctx, CHANGE_PARAM_RECOVERY, true), -EPERM);
+ igt_assert_eq(modify_ctx_param(i915, ctx, CHANGE_PARAM_PROTECTED, false), -EPERM);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 1);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+static void test_ctx_mod_regular_to_all_valid(int i915)
+{
+ uint32_t ctx;
+
+ igt_assert_eq(create_ctx_with_params(i915, false, false, false, false, &ctx), 0);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 0);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 1);
+ igt_assert_eq(modify_ctx_param(i915, ctx, CHANGE_PARAM_RECOVERY, false), 0);
+ igt_assert_eq(modify_ctx_param(i915, ctx, CHANGE_PARAM_PROTECTED, true), -EPERM);
+ igt_assert_eq(get_ctx_protected_param(i915, ctx), 0);
+ igt_assert_eq(get_ctx_recovery_param(i915, ctx), 0);
+ gem_context_destroy(i915, ctx);
+}
+
+igt_main
+{
+ int i915 = -1;
+ bool pxp_supported = false;
+
+ igt_fixture
+ {
+ i915 = drm_open_driver(DRIVER_INTEL);
+ igt_require(i915);
+ igt_require_gem(i915);
+ pxp_supported = is_pxp_hw_supported(i915);
+ }
+
+ igt_subtest_group {
+ igt_fixture {
+ igt_require((pxp_supported == 0));
+ }
+
+ igt_describe("Verify protected buffer on unsupported hw:");
+ igt_subtest("hw-rejects-pxp-buffer")
+ test_bo_alloc_pxp_nohw(i915);
+ igt_describe("Verify protected context on unsupported hw:");
+ igt_subtest("hw-rejects-pxp-context")
+ test_ctx_alloc_pxp_nohw(i915);
+ }
+
+ igt_subtest_group {
+ igt_fixture {
+ igt_require(pxp_supported);
+ }
+
+ igt_describe("Verify protected buffer on supported hw:");
+ igt_subtest("create-regular-buffer")
+ test_bo_alloc_pxp_off(i915);
+ igt_subtest("create-protected-buffer")
+ test_bo_alloc_pxp_on(i915);
+
+ igt_describe("Verify protected context on supported hw:");
+ igt_subtest("create-regular-context-1")
+ test_ctx_alloc_recover_off_protect_off(i915);
+ igt_subtest("create-regular-context-2")
+ test_ctx_alloc_recover_on_protect_off(i915);
+ igt_subtest("fail-invalid-protected-context")
+ test_ctx_alloc_recover_on_protect_on(i915);
+ igt_subtest("create-valid-protected-context")
+ test_ctx_alloc_recover_off_protect_on(i915);
+
+ igt_describe("Verify protected context integrity:");
+ igt_subtest("reject-modify-context-protection-on")
+ test_ctx_mod_regular_to_all_valid(i915);
+ igt_subtest("reject-modify-context-protection-off-1")
+ test_ctx_mod_recover_off_to_on(i915);
+ igt_subtest("reject-modify-context-protection-off-2")
+ test_ctx_mod_protected_on_to_off(i915);
+ igt_subtest("reject-modify-context-protection-off-3")
+ test_ctx_mod_protected_to_all_invalid(i915);
+ }
+
+ igt_fixture {
+ close(i915);
+ }
+}
diff --git a/tests/meson.build b/tests/meson.build
index 19cc4ebe..e0bff4d1 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -187,6 +187,7 @@ i915_progs = [
'gem_pread_after_blit',
'gem_pwrite',
'gem_pwrite_snooped',
+ 'gem_pxp',
'gem_read_read_speed',
'gem_readwrite',
'gem_reg_read',
--
2.25.1
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