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793f8ab62c
Add kernel patches for version 6.1. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
202 lines
6.6 KiB
Diff
202 lines
6.6 KiB
Diff
From 01e67fe435419efedf2431d582fdd17340041453 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Mon, 21 Nov 2022 17:04:31 +0100
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Subject: [PATCH] drm/vc4: tests: Fail the current test if we access a
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register
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Accessing a register when running under kunit is a bad idea since our
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device is completely mocked.
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Fail the current test if we ever access any of our hardware registers.
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Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/vc4_crtc.c | 13 +++++++++++--
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drivers/gpu/drm/vc4/vc4_dpi.c | 13 +++++++++++--
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drivers/gpu/drm/vc4/vc4_drv.h | 29 +++++++++++++++++++++++++----
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drivers/gpu/drm/vc4/vc4_dsi.c | 9 ++++++++-
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drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 4 ++++
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drivers/gpu/drm/vc4/vc4_txp.c | 13 +++++++++++--
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drivers/gpu/drm/vc4/vc4_vec.c | 13 +++++++++++--
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7 files changed, 81 insertions(+), 13 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_crtc.c
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+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
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@@ -50,8 +50,17 @@
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#define HVS_FIFO_LATENCY_PIX 6
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-#define CRTC_WRITE(offset, val) writel(val, vc4_crtc->regs + (offset))
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-#define CRTC_READ(offset) readl(vc4_crtc->regs + (offset))
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+#define CRTC_WRITE(offset, val) \
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+ do { \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ writel(val, vc4_crtc->regs + (offset)); \
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+ } while (0)
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+
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+#define CRTC_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(vc4_crtc->regs + (offset)); \
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+ })
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static const struct debugfs_reg32 crtc_regs[] = {
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VC4_REG32(PV_CONTROL),
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--- a/drivers/gpu/drm/vc4/vc4_dpi.c
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+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
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@@ -103,8 +103,17 @@ to_vc4_dpi(struct drm_encoder *encoder)
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return container_of(encoder, struct vc4_dpi, encoder.base);
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}
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-#define DPI_READ(offset) readl(dpi->regs + (offset))
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-#define DPI_WRITE(offset, val) writel(val, dpi->regs + (offset))
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+#define DPI_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(dpi->regs + (offset)); \
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+ })
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+
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+#define DPI_WRITE(offset, val) \
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+ do { \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ writel(val, dpi->regs + (offset)); \
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+ } while (0)
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static const struct debugfs_reg32 dpi_regs[] = {
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VC4_REG32(DPI_C),
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--- a/drivers/gpu/drm/vc4/vc4_drv.h
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+++ b/drivers/gpu/drm/vc4/vc4_drv.h
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@@ -19,6 +19,8 @@
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#include <drm/drm_mm.h>
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#include <drm/drm_modeset_lock.h>
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+#include <kunit/test-bug.h>
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+
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#include "uapi/drm/vc4_drm.h"
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#include "vc4_regs.h"
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@@ -669,10 +671,29 @@ to_vc4_crtc_state(const struct drm_crtc_
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return container_of(crtc_state, struct vc4_crtc_state, base);
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}
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-#define V3D_READ(offset) readl(vc4->v3d->regs + offset)
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-#define V3D_WRITE(offset, val) writel(val, vc4->v3d->regs + offset)
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-#define HVS_READ(offset) readl(hvs->regs + offset)
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-#define HVS_WRITE(offset, val) writel(val, hvs->regs + offset)
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+#define V3D_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(vc4->v3d->regs + (offset)); \
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+ })
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+
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+#define V3D_WRITE(offset, val) \
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+ do { \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ writel(val, vc4->v3d->regs + (offset)); \
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+ } while (0)
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+
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+#define HVS_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(hvs->regs + (offset)); \
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+ })
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+
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+#define HVS_WRITE(offset, val) \
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+ do { \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ writel(val, hvs->regs + (offset)); \
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+ } while (0)
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#define VC4_REG32(reg) { .name = #reg, .offset = reg }
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--- a/drivers/gpu/drm/vc4/vc4_dsi.c
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+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
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@@ -623,6 +623,8 @@ dsi_dma_workaround_write(struct vc4_dsi
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dma_cookie_t cookie;
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int ret;
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+ kunit_fail_current_test("Accessing a register in a unit test!\n");
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+
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/* DSI0 should be able to write normally. */
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if (!chan) {
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writel(val, dsi->regs + offset);
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@@ -651,7 +653,12 @@ dsi_dma_workaround_write(struct vc4_dsi
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DRM_ERROR("Failed to wait for DMA: %d\n", ret);
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}
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-#define DSI_READ(offset) readl(dsi->regs + (offset))
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+#define DSI_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(dsi->regs + (offset)); \
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+ })
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+
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#define DSI_WRITE(offset, val) dsi_dma_workaround_write(dsi, offset, val)
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#define DSI_PORT_READ(offset) \
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DSI_READ(dsi->variant->port ? DSI1_##offset : DSI0_##offset)
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--- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
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+++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
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@@ -456,6 +456,8 @@ static inline u32 vc4_hdmi_read(struct v
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WARN_ON(pm_runtime_status_suspended(&hdmi->pdev->dev));
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+ kunit_fail_current_test("Accessing an HDMI register in a unit test!\n");
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+
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if (reg >= variant->num_registers) {
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dev_warn(&hdmi->pdev->dev,
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"Invalid register ID %u\n", reg);
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@@ -486,6 +488,8 @@ static inline void vc4_hdmi_write(struct
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WARN_ON(pm_runtime_status_suspended(&hdmi->pdev->dev));
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+ kunit_fail_current_test("Accessing an HDMI register in a unit test!\n");
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+
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if (reg >= variant->num_registers) {
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dev_warn(&hdmi->pdev->dev,
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"Invalid register ID %u\n", reg);
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--- a/drivers/gpu/drm/vc4/vc4_txp.c
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+++ b/drivers/gpu/drm/vc4/vc4_txp.c
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@@ -145,8 +145,17 @@
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/* Number of lines received and committed to memory. */
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#define TXP_PROGRESS 0x10
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-#define TXP_READ(offset) readl(txp->regs + (offset))
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-#define TXP_WRITE(offset, val) writel(val, txp->regs + (offset))
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+#define TXP_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(txp->regs + (offset)); \
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+ })
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+
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+#define TXP_WRITE(offset, val) \
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+ do { \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ writel(val, txp->regs + (offset)); \
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+ } while (0)
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struct vc4_txp {
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struct vc4_crtc base;
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--- a/drivers/gpu/drm/vc4/vc4_vec.c
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+++ b/drivers/gpu/drm/vc4/vc4_vec.c
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@@ -207,8 +207,17 @@ struct vc4_vec {
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struct debugfs_regset32 regset;
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};
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-#define VEC_READ(offset) readl(vec->regs + (offset))
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-#define VEC_WRITE(offset, val) writel(val, vec->regs + (offset))
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+#define VEC_READ(offset) \
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+ ({ \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ readl(vec->regs + (offset)); \
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+ })
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+
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+#define VEC_WRITE(offset, val) \
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+ do { \
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+ kunit_fail_current_test("Accessing a register in a unit test!\n"); \
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+ writel(val, vec->regs + (offset)); \
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+ } while (0)
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static inline struct vc4_vec *
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encoder_to_vc4_vec(struct drm_encoder *encoder)
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