drm/vc4: hvs: Use pointer to HVS in HVS_READ and HVS_WRITE macros

Those macros are really about the HVS itself, and thus its associated
structure vc4_hvs, rather than the entire (virtual) vc4 device.

Let's change those macros to use the hvs pointer directly, and change
the calling sites accordingly.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20220331143744.777652-8-maxime@cerno.tech

1 files changed, 38 insertions, 39 deletions

diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 2d540fc11357..9194cb52e706 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -64,22 +64,21 @@ static const struct debugfs_reg32 hvs_regs[] = {
 	VC4_REG32(SCALER_OLEDCOEF2),
 };
 
-void vc4_hvs_dump_state(struct drm_device *dev)
+void vc4_hvs_dump_state(struct vc4_hvs *hvs)
 {
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
-	struct drm_printer p = drm_info_printer(&vc4->hvs->pdev->dev);
+	struct drm_printer p = drm_info_printer(&hvs->pdev->dev);
 	int i;
 
-	drm_print_regset32(&p, &vc4->hvs->regset);
+	drm_print_regset32(&p, &hvs->regset);
 
 	DRM_INFO("HVS ctx:\n");
 	for (i = 0; i < 64; i += 4) {
 		DRM_INFO("0x%08x (%s): 0x%08x 0x%08x 0x%08x 0x%08x\n",
 			 i * 4, i < HVS_BOOTLOADER_DLIST_END ? "B" : "D",
-			 readl((u32 __iomem *)vc4->hvs->dlist + i + 0),
-			 readl((u32 __iomem *)vc4->hvs->dlist + i + 1),
-			 readl((u32 __iomem *)vc4->hvs->dlist + i + 2),
-			 readl((u32 __iomem *)vc4->hvs->dlist + i + 3));
+			 readl((u32 __iomem *)hvs->dlist + i + 0),
+			 readl((u32 __iomem *)hvs->dlist + i + 1),
+			 readl((u32 __iomem *)hvs->dlist + i + 2),
+			 readl((u32 __iomem *)hvs->dlist + i + 3));
 	}
 }
 
@@ -157,11 +156,10 @@ static int vc4_hvs_upload_linear_kernel(struct vc4_hvs *hvs,
 	return 0;
 }
 
-static void vc4_hvs_lut_load(struct drm_crtc *crtc)
+static void vc4_hvs_lut_load(struct vc4_hvs *hvs,
+			     struct vc4_crtc *vc4_crtc)
 {
-	struct drm_device *dev = crtc->dev;
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+	struct drm_crtc *crtc = &vc4_crtc->base;
 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
 	u32 i;
 
@@ -181,11 +179,12 @@ static void vc4_hvs_lut_load(struct drm_crtc *crtc)
 		HVS_WRITE(SCALER_GAMDATA, vc4_crtc->lut_b[i]);
 }
 
-static void vc4_hvs_update_gamma_lut(struct drm_crtc *crtc)
+static void vc4_hvs_update_gamma_lut(struct vc4_hvs *hvs,
+				     struct vc4_crtc *vc4_crtc)
 {
-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
-	struct drm_color_lut *lut = crtc->state->gamma_lut->data;
-	u32 length = drm_color_lut_size(crtc->state->gamma_lut);
+	struct drm_crtc_state *crtc_state = vc4_crtc->base.state;
+	struct drm_color_lut *lut = crtc_state->gamma_lut->data;
+	u32 length = drm_color_lut_size(crtc_state->gamma_lut);
 	u32 i;
 
 	for (i = 0; i < length; i++) {
@@ -194,12 +193,11 @@ static void vc4_hvs_update_gamma_lut(struct drm_crtc *crtc)
 		vc4_crtc->lut_b[i] = drm_color_lut_extract(lut[i].blue, 8);
 	}
 
-	vc4_hvs_lut_load(crtc);
+	vc4_hvs_lut_load(hvs, vc4_crtc);
 }
 
-u8 vc4_hvs_get_fifo_frame_count(struct drm_device *dev, unsigned int fifo)
+u8 vc4_hvs_get_fifo_frame_count(struct vc4_hvs *hvs, unsigned int fifo)
 {
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	u8 field = 0;
 
 	switch (fifo) {
@@ -220,13 +218,12 @@ u8 vc4_hvs_get_fifo_frame_count(struct drm_device *dev, unsigned int fifo)
 	return field;
 }
 
-int vc4_hvs_get_fifo_from_output(struct drm_device *dev, unsigned int output)
+int vc4_hvs_get_fifo_from_output(struct vc4_hvs *hvs, unsigned int output)
 {
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	u32 reg;
 	int ret;
 
-	if (!vc4->hvs->hvs5)
+	if (!hvs->hvs5)
 		return output;
 
 	switch (output) {
@@ -273,9 +270,10 @@ int vc4_hvs_get_fifo_from_output(struct drm_device *dev, unsigned int output)
 	}
 }
 
-static int vc4_hvs_init_channel(struct vc4_dev *vc4, struct drm_crtc *crtc,
+static int vc4_hvs_init_channel(struct vc4_hvs *hvs, struct drm_crtc *crtc,
 				struct drm_display_mode *mode, bool oneshot)
 {
+	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
 	struct vc4_crtc_state *vc4_crtc_state = to_vc4_crtc_state(crtc->state);
 	unsigned int chan = vc4_crtc_state->assigned_channel;
 	bool interlace = mode->flags & DRM_MODE_FLAG_INTERLACE;
@@ -293,7 +291,7 @@ static int vc4_hvs_init_channel(struct vc4_dev *vc4, struct drm_crtc *crtc,
 	 */
 	dispctrl = SCALER_DISPCTRLX_ENABLE;
 
-	if (!vc4->hvs->hvs5)
+	if (!hvs->hvs5)
 		dispctrl |= VC4_SET_FIELD(mode->hdisplay,
 					  SCALER_DISPCTRLX_WIDTH) |
 			    VC4_SET_FIELD(mode->vdisplay,
@@ -314,21 +312,19 @@ static int vc4_hvs_init_channel(struct vc4_dev *vc4, struct drm_crtc *crtc,
 
 	HVS_WRITE(SCALER_DISPBKGNDX(chan), dispbkgndx |
 		  SCALER_DISPBKGND_AUTOHS |
-		  ((!vc4->hvs->hvs5) ? SCALER_DISPBKGND_GAMMA : 0) |
+		  ((!hvs->hvs5) ? SCALER_DISPBKGND_GAMMA : 0) |
 		  (interlace ? SCALER_DISPBKGND_INTERLACE : 0));
 
 	/* Reload the LUT, since the SRAMs would have been disabled if
 	 * all CRTCs had SCALER_DISPBKGND_GAMMA unset at once.
 	 */
-	vc4_hvs_lut_load(crtc);
+	vc4_hvs_lut_load(hvs, vc4_crtc);
 
 	return 0;
 }
 
-void vc4_hvs_stop_channel(struct drm_device *dev, unsigned int chan)
+void vc4_hvs_stop_channel(struct vc4_hvs *hvs, unsigned int chan)
 {
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
-
 	if (HVS_READ(SCALER_DISPCTRLX(chan)) & SCALER_DISPCTRLX_ENABLE)
 		return;
 
@@ -386,6 +382,7 @@ static void vc4_hvs_install_dlist(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+	struct vc4_hvs *hvs = vc4->hvs;
 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
 
 	HVS_WRITE(SCALER_DISPLISTX(vc4_state->assigned_channel),
@@ -442,18 +439,19 @@ void vc4_hvs_atomic_enable(struct drm_crtc *crtc,
 
 	vc4_hvs_install_dlist(crtc);
 	vc4_hvs_update_dlist(crtc);
-	vc4_hvs_init_channel(vc4, crtc, mode, oneshot);
+	vc4_hvs_init_channel(vc4->hvs, crtc, mode, oneshot);
 }
 
 void vc4_hvs_atomic_disable(struct drm_crtc *crtc,
 			    struct drm_atomic_state *state)
 {
 	struct drm_device *dev = crtc->dev;
+	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(old_state);
 	unsigned int chan = vc4_state->assigned_channel;
 
-	vc4_hvs_stop_channel(dev, chan);
+	vc4_hvs_stop_channel(vc4->hvs, chan);
 }
 
 void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
@@ -463,6 +461,8 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 									 crtc);
 	struct drm_device *dev = crtc->dev;
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+	struct vc4_hvs *hvs = vc4->hvs;
+	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
 	unsigned int channel = vc4_state->assigned_channel;
 	struct drm_plane *plane;
@@ -474,7 +474,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 
 	if (debug_dump_regs) {
 		DRM_INFO("CRTC %d HVS before:\n", drm_crtc_index(crtc));
-		vc4_hvs_dump_state(dev);
+		vc4_hvs_dump_state(hvs);
 	}
 
 	/* Copy all the active planes' dlist contents to the hardware dlist. */
@@ -525,7 +525,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 		u32 dispbkgndx = HVS_READ(SCALER_DISPBKGNDX(channel));
 
 		if (crtc->state->gamma_lut) {
-			vc4_hvs_update_gamma_lut(crtc);
+			vc4_hvs_update_gamma_lut(hvs, vc4_crtc);
 			dispbkgndx |= SCALER_DISPBKGND_GAMMA;
 		} else {
 			/* Unsetting DISPBKGND_GAMMA skips the gamma lut step
@@ -539,13 +539,12 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 
 	if (debug_dump_regs) {
 		DRM_INFO("CRTC %d HVS after:\n", drm_crtc_index(crtc));
-		vc4_hvs_dump_state(dev);
+		vc4_hvs_dump_state(hvs);
 	}
 }
 
-void vc4_hvs_mask_underrun(struct drm_device *dev, int channel)
+void vc4_hvs_mask_underrun(struct vc4_hvs *hvs, int channel)
 {
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	u32 dispctrl = HVS_READ(SCALER_DISPCTRL);
 
 	dispctrl &= ~SCALER_DISPCTRL_DSPEISLUR(channel);
@@ -553,9 +552,8 @@ void vc4_hvs_mask_underrun(struct drm_device *dev, int channel)
 	HVS_WRITE(SCALER_DISPCTRL, dispctrl);
 }
 
-void vc4_hvs_unmask_underrun(struct drm_device *dev, int channel)
+void vc4_hvs_unmask_underrun(struct vc4_hvs *hvs, int channel)
 {
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	u32 dispctrl = HVS_READ(SCALER_DISPCTRL);
 
 	dispctrl |= SCALER_DISPCTRL_DSPEISLUR(channel);
@@ -577,6 +575,7 @@ static irqreturn_t vc4_hvs_irq_handler(int irq, void *data)
 {
 	struct drm_device *dev = data;
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+	struct vc4_hvs *hvs = vc4->hvs;
 	irqreturn_t irqret = IRQ_NONE;
 	int channel;
 	u32 control;
@@ -589,7 +588,7 @@ static irqreturn_t vc4_hvs_irq_handler(int irq, void *data)
 		/* Interrupt masking is not always honored, so check it here. */
 		if (status & SCALER_DISPSTAT_EUFLOW(channel) &&
 		    control & SCALER_DISPCTRL_DSPEISLUR(channel)) {
-			vc4_hvs_mask_underrun(dev, channel);
+			vc4_hvs_mask_underrun(hvs, channel);
 			vc4_hvs_report_underrun(dev);
 
 			irqret = IRQ_HANDLED;