[Intel-gfx] [PATCH v2] drm/i915: Add stub mmio read/write routines to mock device
Chris Wilson
chris at chris-wilson.co.uk
Wed Apr 12 09:21:43 UTC 2017
Provide dummy function pointers for the mock device in case we do hit
mmio during testing.
v2: Use ASSIGN_READ/WRITE_MMIO_FUNCS macros
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com> #v1
---
drivers/gpu/drm/i915/intel_uncore.c | 47 ++++++++++++------------
drivers/gpu/drm/i915/selftests/mock_gem_device.c | 2 +
drivers/gpu/drm/i915/selftests/mock_uncore.c | 46 +++++++++++++++++++++++
drivers/gpu/drm/i915/selftests/mock_uncore.h | 30 +++++++++++++++
4 files changed, 101 insertions(+), 24 deletions(-)
create mode 100644 drivers/gpu/drm/i915/selftests/mock_uncore.c
create mode 100644 drivers/gpu/drm/i915/selftests/mock_uncore.h
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index fb38c7692fc2..0cd56bf00650 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1108,19 +1108,19 @@ __gen6_write(32)
#undef GEN6_WRITE_FOOTER
#undef GEN6_WRITE_HEADER
-#define ASSIGN_WRITE_MMIO_VFUNCS(x) \
+#define ASSIGN_WRITE_MMIO_VFUNCS(i915, x) \
do { \
- dev_priv->uncore.funcs.mmio_writeb = x##_write8; \
- dev_priv->uncore.funcs.mmio_writew = x##_write16; \
- dev_priv->uncore.funcs.mmio_writel = x##_write32; \
+ (i915)->uncore.funcs.mmio_writeb = x##_write8; \
+ (i915)->uncore.funcs.mmio_writew = x##_write16; \
+ (i915)->uncore.funcs.mmio_writel = x##_write32; \
} while (0)
-#define ASSIGN_READ_MMIO_VFUNCS(x) \
+#define ASSIGN_READ_MMIO_VFUNCS(i915, x) \
do { \
- dev_priv->uncore.funcs.mmio_readb = x##_read8; \
- dev_priv->uncore.funcs.mmio_readw = x##_read16; \
- dev_priv->uncore.funcs.mmio_readl = x##_read32; \
- dev_priv->uncore.funcs.mmio_readq = x##_read64; \
+ (i915)->uncore.funcs.mmio_readb = x##_read8; \
+ (i915)->uncore.funcs.mmio_readw = x##_read16; \
+ (i915)->uncore.funcs.mmio_readl = x##_read32; \
+ (i915)->uncore.funcs.mmio_readq = x##_read64; \
} while (0)
@@ -1310,34 +1310,34 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
i915_pmic_bus_access_notifier;
if (IS_GEN(dev_priv, 2, 4) || intel_vgpu_active(dev_priv)) {
- ASSIGN_WRITE_MMIO_VFUNCS(gen2);
- ASSIGN_READ_MMIO_VFUNCS(gen2);
+ ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen2);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen2);
} else if (IS_GEN5(dev_priv)) {
- ASSIGN_WRITE_MMIO_VFUNCS(gen5);
- ASSIGN_READ_MMIO_VFUNCS(gen5);
+ ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen5);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen5);
} else if (IS_GEN(dev_priv, 6, 7)) {
- ASSIGN_WRITE_MMIO_VFUNCS(gen6);
+ ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen6);
if (IS_VALLEYVIEW(dev_priv)) {
ASSIGN_FW_DOMAINS_TABLE(__vlv_fw_ranges);
- ASSIGN_READ_MMIO_VFUNCS(fwtable);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, fwtable);
} else {
- ASSIGN_READ_MMIO_VFUNCS(gen6);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen6);
}
} else if (IS_GEN8(dev_priv)) {
if (IS_CHERRYVIEW(dev_priv)) {
ASSIGN_FW_DOMAINS_TABLE(__chv_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(fwtable);
- ASSIGN_READ_MMIO_VFUNCS(fwtable);
+ ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, fwtable);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, fwtable);
} else {
- ASSIGN_WRITE_MMIO_VFUNCS(gen8);
- ASSIGN_READ_MMIO_VFUNCS(gen6);
+ ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen8);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen6);
}
} else {
ASSIGN_FW_DOMAINS_TABLE(__gen9_fw_ranges);
- ASSIGN_WRITE_MMIO_VFUNCS(fwtable);
- ASSIGN_READ_MMIO_VFUNCS(fwtable);
+ ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, fwtable);
+ ASSIGN_READ_MMIO_VFUNCS(dev_priv, fwtable);
if (HAS_DECOUPLED_MMIO(dev_priv)) {
dev_priv->uncore.funcs.mmio_readl =
gen9_decoupled_read32;
@@ -1353,8 +1353,6 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
i915_check_and_clear_faults(dev_priv);
}
-#undef ASSIGN_WRITE_MMIO_VFUNCS
-#undef ASSIGN_READ_MMIO_VFUNCS
void intel_uncore_fini(struct drm_i915_private *dev_priv)
{
@@ -1900,5 +1898,6 @@ intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv,
}
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
+#include "selftests/mock_uncore.c"
#include "selftests/intel_uncore.c"
#endif
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 6a8258eacdcb..f321bdfe0b5b 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -30,6 +30,7 @@
#include "mock_gem_device.h"
#include "mock_gem_object.h"
#include "mock_gtt.h"
+#include "mock_uncore.h"
void mock_device_flush(struct drm_i915_private *i915)
{
@@ -143,6 +144,7 @@ struct drm_i915_private *mock_gem_device(void)
mkwrite_device_info(i915)->gen = -1;
spin_lock_init(&i915->mm.object_stat_lock);
+ mock_uncore_init(i915);
init_waitqueue_head(&i915->gpu_error.wait_queue);
init_waitqueue_head(&i915->gpu_error.reset_queue);
diff --git a/drivers/gpu/drm/i915/selftests/mock_uncore.c b/drivers/gpu/drm/i915/selftests/mock_uncore.c
new file mode 100644
index 000000000000..8ef14c7e5e38
--- /dev/null
+++ b/drivers/gpu/drm/i915/selftests/mock_uncore.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright © 2017 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include "mock_uncore.h"
+
+#define __nop_write(x) \
+static void \
+nop_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool trace) { }
+__nop_write(8)
+__nop_write(16)
+__nop_write(32)
+
+#define __nop_read(x) \
+static u##x \
+nop_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { return 0; }
+__nop_read(8)
+__nop_read(16)
+__nop_read(32)
+__nop_read(64)
+
+void mock_uncore_init(struct drm_i915_private *i915)
+{
+ ASSIGN_WRITE_MMIO_VFUNCS(i915, nop);
+ ASSIGN_READ_MMIO_VFUNCS(i915, nop);
+}
diff --git a/drivers/gpu/drm/i915/selftests/mock_uncore.h b/drivers/gpu/drm/i915/selftests/mock_uncore.h
new file mode 100644
index 000000000000..d79aa3ca4d51
--- /dev/null
+++ b/drivers/gpu/drm/i915/selftests/mock_uncore.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright © 2017 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __MOCK_UNCORE_H
+#define __MOCK_UNCORE_H
+
+void mock_uncore_init(struct drm_i915_private *i915);
+
+#endif /* !__MOCK_UNCORE_H */
--
2.11.0
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