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2e715fb4fc
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
359 lines
9.6 KiB
Diff
359 lines
9.6 KiB
Diff
From 39ae36d19bf6e59e3091f8f0ec6f4eac59aaf6f2 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Fri, 14 Apr 2023 13:43:32 +0200
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Subject: [PATCH] drm/vc4: tests: Introduce a test for LBM buffer size
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The BCM2712 comes with a different LBM size computation than the
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previous generations, so let's add the few examples provided as kunit
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tests to make sure we always satisfy those requirements.
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/Makefile | 3 +-
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drivers/gpu/drm/vc4/tests/vc4_test_lbm_size.c | 327 ++++++++++++++++++
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2 files changed, 329 insertions(+), 1 deletion(-)
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create mode 100644 drivers/gpu/drm/vc4/tests/vc4_test_lbm_size.c
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--- a/drivers/gpu/drm/vc4/Makefile
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+++ b/drivers/gpu/drm/vc4/Makefile
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@@ -31,7 +31,8 @@ vc4-$(CONFIG_DRM_VC4_KUNIT_TEST) += \
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tests/vc4_mock_crtc.o \
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tests/vc4_mock_output.o \
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tests/vc4_mock_plane.o \
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- tests/vc4_test_pv_muxing.o
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+ tests/vc4_test_pv_muxing.o \
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+ tests/vc4_test_lbm_size.o
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vc4-$(CONFIG_DEBUG_FS) += vc4_debugfs.o
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--- /dev/null
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+++ b/drivers/gpu/drm/vc4/tests/vc4_test_lbm_size.c
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@@ -0,0 +1,327 @@
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+// SPDX-License-Identifier: GPL-2.0
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+
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+#include <drm/drm_atomic_helper.h>
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+#include <drm/drm_atomic_uapi.h>
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+#include <drm/drm_drv.h>
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+#include <drm/drm_fourcc.h>
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+#include <drm/drm_framebuffer.h>
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+#include <drm/drm_plane.h>
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+#include <drm/drm_kunit_helpers.h>
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+
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+#include "../../drm_crtc_internal.h"
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+#include "../../drm_internal.h"
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+
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+#include <kunit/test.h>
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+
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+#include "../vc4_drv.h"
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+
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+#include "vc4_mock.h"
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+
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+u32 vc4_lbm_size(struct drm_plane_state *state);
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+
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+struct vc4_lbm_size_priv {
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+ struct vc4_dev *vc4;
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+ struct drm_file *file;
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+ struct drm_modeset_acquire_ctx ctx;
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+ struct drm_atomic_state *state;
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+};
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+
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+struct vc4_lbm_size_param {
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+ unsigned int src_w, src_h;
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+ unsigned int crtc_w, crtc_h;
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+ bool forced_alpha;
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+ u32 fourcc;
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+ enum vc4_scaling_mode expected_x_scaling[2];
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+ enum vc4_scaling_mode expected_y_scaling[2];
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+ unsigned int expected_lbm_size;
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+};
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+
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+static const struct vc4_lbm_size_param vc4_test_lbm_size_params[] = {
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+ {
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+ .src_w = 256,
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+ .crtc_w = 256,
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+ .src_h = 256,
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+ .crtc_h = 512,
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+ .fourcc = DRM_FORMAT_ARGB8888,
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+ .expected_x_scaling = { VC4_SCALING_NONE, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, },
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+ .expected_lbm_size = 32,
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+ },
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+ {
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+ .src_w = 256,
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+ .crtc_w = 179,
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+ .src_h = 256,
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+ .crtc_h = 512,
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+ .fourcc = DRM_FORMAT_ARGB8888,
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+ .expected_x_scaling = { VC4_SCALING_PPF, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, },
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+ .expected_lbm_size = 23,
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+ },
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+ {
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+ .src_w = 256,
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+ .crtc_w = 256,
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+ .src_h = 256,
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+ .crtc_h = 512,
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+ .fourcc = DRM_FORMAT_XRGB8888,
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+ .expected_x_scaling = { VC4_SCALING_NONE, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, },
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+ .expected_lbm_size = 24,
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+ },
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+ {
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+ .src_w = 100,
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+ .crtc_w = 73,
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+ .src_h = 100,
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+ .crtc_h = 73,
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+ .fourcc = DRM_FORMAT_XRGB8888,
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+ .expected_x_scaling = { VC4_SCALING_PPF, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, },
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+ .expected_lbm_size = 8,
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+ },
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+ {
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+ .src_w = 256,
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+ .crtc_w = 256,
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+ .src_h = 256,
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+ .crtc_h = 512,
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+ .forced_alpha = true,
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+ .fourcc = DRM_FORMAT_ARGB8888,
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+ .expected_x_scaling = { VC4_SCALING_NONE, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, },
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+ .expected_lbm_size = 24,
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+ },
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+ {
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+ .src_w = 100,
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+ .crtc_w = 73,
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+ .src_h = 100,
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+ .crtc_h = 73,
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+ .forced_alpha = true,
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+ .fourcc = DRM_FORMAT_ARGB8888,
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+ .expected_x_scaling = { VC4_SCALING_PPF, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, },
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+ .expected_lbm_size = 8,
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+ },
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+ {
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+ .src_w = 256,
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+ .crtc_w = 94,
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+ .src_h = 256,
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+ .crtc_h = 94,
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+ .fourcc = DRM_FORMAT_ARGB8888,
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+ .expected_x_scaling = { VC4_SCALING_TPZ, },
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+ .expected_y_scaling = { VC4_SCALING_TPZ, },
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+ .expected_lbm_size = 6,
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+ },
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+
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+/*
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+ * TODO: Those tests reflect the LBM size calculation examples, but the
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+ * driver ends up taking different scaler filters decisions, and thus
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+ * doesn't end up with the same sizes. It would be valuable to have
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+ * those tests, but the driver doesn't take a bad decision either, so
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+ * it's not clear what we should do at this point.
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+ */
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+#if 0
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+ {
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+ .src_w = 320,
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+ .crtc_w = 320,
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+ .src_h = 320,
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+ .crtc_h = 320,
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+ .fourcc = DRM_FORMAT_YUV420,
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+ .expected_x_scaling = { VC4_SCALING_NONE, VC4_SCALING_NONE, },
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+ .expected_y_scaling = { VC4_SCALING_NONE, VC4_SCALING_PPF, },
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+ .expected_lbm_size = 10,
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+ },
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+ {
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+ .src_w = 512,
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+ .crtc_w = 512,
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+ .src_h = 512,
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+ .crtc_h = 256,
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+ .fourcc = DRM_FORMAT_YUV420,
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+ .expected_x_scaling = { VC4_SCALING_NONE, VC4_SCALING_NONE, },
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+ .expected_y_scaling = { VC4_SCALING_TPZ, VC4_SCALING_NONE, },
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+ .expected_lbm_size = 5,
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+ },
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+ {
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+ .src_w = 486,
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+ .crtc_w = 157,
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+ .src_h = 404,
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+ .crtc_h = 929,
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+ .fourcc = DRM_FORMAT_YUV422,
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+ .expected_x_scaling = { VC4_SCALING_PPF, VC4_SCALING_PPF, },
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+ .expected_y_scaling = { VC4_SCALING_PPF, VC4_SCALING_PPF, },
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+ .expected_lbm_size = 20,
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+ },
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+ {
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+ .src_w = 320,
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+ .crtc_w = 128,
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+ .src_h = 176,
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+ .crtc_h = 70,
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+ .fourcc = DRM_FORMAT_YUV420,
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+ .expected_x_scaling = { VC4_SCALING_TPZ, VC4_SCALING_TPZ, },
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+ .expected_y_scaling = { VC4_SCALING_TPZ, VC4_SCALING_TPZ, },
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+ .expected_lbm_size = 8,
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+ },
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+#endif
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+};
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+
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+static void vc4_test_lbm_size_desc(const struct vc4_lbm_size_param *t, char *desc)
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+{
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+ snprintf(desc, KUNIT_PARAM_DESC_SIZE,
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+ "%ux%u to %ux%u %s(%p4cc)",
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+ t->src_w, t->src_h,
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+ t->crtc_w, t->crtc_h,
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+ t->forced_alpha ? "with forced alpha " : "",
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+ &t->fourcc);
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+}
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+
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+KUNIT_ARRAY_PARAM(vc4_test_lbm_size,
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+ vc4_test_lbm_size_params,
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+ vc4_test_lbm_size_desc);
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+
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+static void drm_vc4_test_vc4_lbm_size(struct kunit *test)
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+{
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+ const struct vc4_lbm_size_param *params = test->param_value;
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+ const struct vc4_lbm_size_priv *priv = test->priv;
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+ const struct drm_format_info *info;
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+ struct drm_mode_fb_cmd2 fb_req = { };
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+ struct drm_atomic_state *state = priv->state;
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+ struct vc4_plane_state *vc4_plane_state;
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+ struct drm_plane_state *plane_state;
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+ struct vc4_dummy_output *output;
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+ struct drm_framebuffer *fb;
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+ struct drm_plane *plane;
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+ struct drm_crtc *crtc;
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+ unsigned int i;
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+ int ret;
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+
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+ info = drm_format_info(params->fourcc);
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+ KUNIT_ASSERT_NOT_NULL(test, info);
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+
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+ output = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, output);
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+
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+ crtc = vc4_find_crtc_for_encoder(test, &output->encoder.base);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc);
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+
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+ plane = vc4_mock_atomic_add_plane(test, state, crtc);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane);
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+
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+ plane_state = drm_atomic_get_plane_state(state, plane);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane_state);
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+
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+ vc4_plane_state = to_vc4_plane_state(plane_state);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vc4_plane_state);
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+
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+ fb_req.pixel_format = params->fourcc;
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+ fb_req.width = params->src_w;
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+ fb_req.height = params->src_h;
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+
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+ for (i = 0; i < info->num_planes; i++) {
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+ struct drm_mode_create_dumb dumb_args = { };
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+
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+ dumb_args.width = params->src_w;
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+ dumb_args.height = params->src_h;
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+ dumb_args.bpp = drm_format_info_bpp(info, i);
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+
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+ ret = drm_mode_create_dumb(state->dev, &dumb_args, priv->file);
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+ KUNIT_ASSERT_EQ(test, ret, 0);
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+
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+ fb_req.handles[i] = dumb_args.handle;
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+ fb_req.pitches[i] = dumb_args.pitch;
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+ }
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+
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+ fb = drm_internal_framebuffer_create(state->dev, &fb_req, priv->file);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, fb);
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+
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+ drm_atomic_set_fb_for_plane(plane_state, fb);
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+
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+ plane_state->src_x = 0;
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+ plane_state->src_y = 0;
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+ plane_state->src_h = params->src_h << 16;
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+ plane_state->src_w = params->src_w << 16;
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+
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+ plane_state->crtc_x = 0;
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+ plane_state->crtc_y = 0;
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+ plane_state->crtc_h = params->crtc_h;
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+ plane_state->crtc_w = params->crtc_w;
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+
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+ if (params->forced_alpha)
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+ plane_state->alpha = 128;
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+
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+ ret = drm_atomic_check_only(state);
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+ KUNIT_ASSERT_EQ(test, ret, 0);
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+
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+ KUNIT_EXPECT_EQ(test, vc4_plane_state->lbm.size, params->expected_lbm_size);
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+
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+ for (i = 0; i < 2; i++) {
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+ KUNIT_EXPECT_EQ(test,
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+ vc4_plane_state->x_scaling[i],
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+ params->expected_x_scaling[i]);
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+ KUNIT_EXPECT_EQ(test,
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+ vc4_plane_state->y_scaling[i],
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+ params->expected_y_scaling[i]);
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+ }
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+
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+ drm_framebuffer_put(fb);
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+
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+ for (i = 0; i < info->num_planes; i++)
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+ drm_mode_destroy_dumb(state->dev, fb_req.handles[i], priv->file);
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+}
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+
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+static struct kunit_case vc4_lbm_size_tests[] = {
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+ KUNIT_CASE_PARAM(drm_vc4_test_vc4_lbm_size,
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+ vc4_test_lbm_size_gen_params),
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+ {}
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+};
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+
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+static int vc4_lbm_size_test_init(struct kunit *test)
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+{
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+ struct drm_atomic_state *state;
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+ struct vc4_lbm_size_priv *priv;
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+ struct drm_device *drm;
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+ struct vc4_dev *vc4;
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+
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+ priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
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+ KUNIT_ASSERT_NOT_NULL(test, priv);
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+ test->priv = priv;
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+
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+ vc4 = vc6_mock_device(test);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vc4);
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+ priv->vc4 = vc4;
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+
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+ priv->file = drm_file_alloc(priv->vc4->base.primary);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->file);
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+
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+ drm_modeset_acquire_init(&priv->ctx, 0);
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+
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+ drm = &vc4->base;
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+ state = drm_atomic_state_alloc(drm);
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+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
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+
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+ state->acquire_ctx = &priv->ctx;
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+
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+ priv->state = state;
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+
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+ return 0;
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+}
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+
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+static void vc4_lbm_size_test_exit(struct kunit *test)
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+{
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+ struct vc4_lbm_size_priv *priv = test->priv;
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+ struct vc4_dev *vc4 = priv->vc4;
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+ struct drm_device *drm = &vc4->base;
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+ struct drm_atomic_state *state = priv->state;
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+
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+ drm_atomic_state_put(state);
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+ drm_modeset_drop_locks(&priv->ctx);
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+ drm_modeset_acquire_fini(&priv->ctx);
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+ drm_file_free(priv->file);
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+ drm_dev_unregister(drm);
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+ drm_kunit_helper_free_device(test, vc4->dev);
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+}
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+
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+static struct kunit_suite vc4_lbm_size_test_suite = {
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+ .name = "vc4-lbm-size",
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+ .init = vc4_lbm_size_test_init,
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+ .exit = vc4_lbm_size_test_exit,
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+ .test_cases = vc4_lbm_size_tests,
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+};
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+
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+kunit_test_suite(vc4_lbm_size_test_suite);
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