drm/via: drop use of DRM(READ|WRITE) macros

The DRM_READ, DRM_WRITE macros comes from the deprecated drm_os_linux.h
header file. Remove their use to remove this dependency.

Replace the use of the macros with static inline variants.

v4:
- Use a more standard via_write8_mask() function (Emil)

v3:
- Use static inline functions, rather than macros (Emil)
- Use dedicated mask variants for byte access (Emil)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Kevin Brace <kevinbrace@gmx.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-2-sam@ravnborg.org

drivers/gpu/drm/via/via_dma.c

@@ -430,14 +430,14 @@ static int via_hook_segment(drm_via_private_t *dev_priv,
 	diff = (uint32_t) (ptr - reader) - dev_priv->dma_diff;
 	count = 10000000;
 	while (diff == 0 && count--) {
-		paused = (VIA_READ(0x41c) & 0x80000000);
+		paused = (via_read(dev_priv, 0x41c) & 0x80000000);
 		if (paused)
 			break;
 		reader = *(dev_priv->hw_addr_ptr);
 		diff = (uint32_t) (ptr - reader) - dev_priv->dma_diff;
 	}
 
-	paused = VIA_READ(0x41c) & 0x80000000;
+	paused = via_read(dev_priv, 0x41c) & 0x80000000;
 
 	if (paused && !no_pci_fire) {
 		reader = *(dev_priv->hw_addr_ptr);
@@ -454,10 +454,10 @@ static int via_hook_segment(drm_via_private_t *dev_priv,
 			 * doesn't make a difference.
 			 */
 
-			VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
-			VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);
-			VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);
-			VIA_READ(VIA_REG_TRANSPACE);
+			via_write(dev_priv, VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
+			via_write(dev_priv, VIA_REG_TRANSPACE, pause_addr_hi);
+			via_write(dev_priv, VIA_REG_TRANSPACE, pause_addr_lo);
+			via_read(dev_priv, VIA_REG_TRANSPACE);
 		}
 	}
 	return paused;
@@ -467,10 +467,10 @@ static int via_wait_idle(drm_via_private_t *dev_priv)
 {
 	int count = 10000000;
 
-	while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && --count)
+	while (!(via_read(dev_priv, VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && --count)
 		;
 
-	while (count && (VIA_READ(VIA_REG_STATUS) &
+	while (count && (via_read(dev_priv, VIA_REG_STATUS) &
 			   (VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY |
 			    VIA_3D_ENG_BUSY)))
 		--count;
@@ -536,21 +536,21 @@ static void via_cmdbuf_start(drm_via_private_t *dev_priv)
 	via_flush_write_combine();
 	(void) *(volatile uint32_t *)dev_priv->last_pause_ptr;
 
-	VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
-	VIA_WRITE(VIA_REG_TRANSPACE, command);
-	VIA_WRITE(VIA_REG_TRANSPACE, start_addr_lo);
-	VIA_WRITE(VIA_REG_TRANSPACE, end_addr_lo);
+	via_write(dev_priv, VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
+	via_write(dev_priv, VIA_REG_TRANSPACE, command);
+	via_write(dev_priv, VIA_REG_TRANSPACE, start_addr_lo);
+	via_write(dev_priv, VIA_REG_TRANSPACE, end_addr_lo);
 
-	VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);
-	VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);
+	via_write(dev_priv, VIA_REG_TRANSPACE, pause_addr_hi);
+	via_write(dev_priv, VIA_REG_TRANSPACE, pause_addr_lo);
 	wmb();
-	VIA_WRITE(VIA_REG_TRANSPACE, command | HC_HAGPCMNT_MASK);
-	VIA_READ(VIA_REG_TRANSPACE);
+	via_write(dev_priv, VIA_REG_TRANSPACE, command | HC_HAGPCMNT_MASK);
+	via_read(dev_priv, VIA_REG_TRANSPACE);
 
 	dev_priv->dma_diff = 0;
 
 	count = 10000000;
-	while (!(VIA_READ(0x41c) & 0x80000000) && count--);
+	while (!(via_read(dev_priv, 0x41c) & 0x80000000) && count--);
 
 	reader = *(dev_priv->hw_addr_ptr);
 	ptr = ((volatile char *)dev_priv->last_pause_ptr - dev_priv->dma_ptr) +

drivers/gpu/drm/via/via_dmablit.c

@@ -214,16 +214,16 @@ via_fire_dmablit(struct drm_device *dev, drm_via_sg_info_t *vsg, int engine)
 {
 	drm_via_private_t *dev_priv = (drm_via_private_t *)dev->dev_private;
 
-	VIA_WRITE(VIA_PCI_DMA_MAR0 + engine*0x10, 0);
-	VIA_WRITE(VIA_PCI_DMA_DAR0 + engine*0x10, 0);
-	VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_DD | VIA_DMA_CSR_TD |
+	via_write(dev_priv, VIA_PCI_DMA_MAR0 + engine*0x10, 0);
+	via_write(dev_priv, VIA_PCI_DMA_DAR0 + engine*0x10, 0);
+	via_write(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_DD | VIA_DMA_CSR_TD |
 		  VIA_DMA_CSR_DE);
-	VIA_WRITE(VIA_PCI_DMA_MR0  + engine*0x04, VIA_DMA_MR_CM | VIA_DMA_MR_TDIE);
-	VIA_WRITE(VIA_PCI_DMA_BCR0 + engine*0x10, 0);
-	VIA_WRITE(VIA_PCI_DMA_DPR0 + engine*0x10, vsg->chain_start);
+	via_write(dev_priv, VIA_PCI_DMA_MR0  + engine*0x04, VIA_DMA_MR_CM | VIA_DMA_MR_TDIE);
+	via_write(dev_priv, VIA_PCI_DMA_BCR0 + engine*0x10, 0);
+	via_write(dev_priv, VIA_PCI_DMA_DPR0 + engine*0x10, vsg->chain_start);
 	wmb();
-	VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_DE | VIA_DMA_CSR_TS);
-	VIA_READ(VIA_PCI_DMA_CSR0 + engine*0x04);
+	via_write(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_DE | VIA_DMA_CSR_TS);
+	via_read(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04);
 }
 
 /*
@@ -291,7 +291,7 @@ via_abort_dmablit(struct drm_device *dev, int engine)
 {
 	drm_via_private_t *dev_priv = (drm_via_private_t *)dev->dev_private;
 
-	VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_TA);
+	via_write(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_TA);
 }
 
 static void
@@ -299,7 +299,7 @@ via_dmablit_engine_off(struct drm_device *dev, int engine)
 {
 	drm_via_private_t *dev_priv = (drm_via_private_t *)dev->dev_private;
 
-	VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_TD | VIA_DMA_CSR_DD);
+	via_write(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_TD | VIA_DMA_CSR_DD);
 }
 
 
@@ -330,7 +330,7 @@ via_dmablit_handler(struct drm_device *dev, int engine, int from_irq)
 		spin_lock_irqsave(&blitq->blit_lock, irqsave);
 
 	done_transfer = blitq->is_active &&
-	  ((status = VIA_READ(VIA_PCI_DMA_CSR0 + engine*0x04)) & VIA_DMA_CSR_TD);
+	  ((status = via_read(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04)) & VIA_DMA_CSR_TD);
 	done_transfer = done_transfer || (blitq->aborting && !(status & VIA_DMA_CSR_DE));
 
 	cur = blitq->cur;
@@ -349,7 +349,7 @@ via_dmablit_handler(struct drm_device *dev, int engine, int from_irq)
 		 * Clear transfer done flag.
 		 */
 
-		VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04,  VIA_DMA_CSR_TD);
+		via_write(dev_priv, VIA_PCI_DMA_CSR0 + engine*0x04,  VIA_DMA_CSR_TD);
 
 		blitq->is_active = 0;
 		blitq->aborting = 0;

drivers/gpu/drm/via/via_drv.h

@@ -113,12 +113,32 @@ enum via_family {
 };
 
 /* VIA MMIO register access */
-#define VIA_BASE ((dev_priv->mmio))
-
-#define VIA_READ(reg)		DRM_READ32(VIA_BASE, reg)
-#define VIA_WRITE(reg, val)	DRM_WRITE32(VIA_BASE, reg, val)
-#define VIA_READ8(reg)		DRM_READ8(VIA_BASE, reg)
-#define VIA_WRITE8(reg, val)	DRM_WRITE8(VIA_BASE, reg, val)
+static inline u32 via_read(struct drm_via_private *dev_priv, u32 reg)
+{
+	return readl((void __iomem *)(dev_priv->mmio->handle + reg));
+}
+
+static inline void via_write(struct drm_via_private *dev_priv, u32 reg,
+			     u32 val)
+{
+	writel(val, (void __iomem *)(dev_priv->mmio->handle + reg));
+}
+
+static inline void via_write8(struct drm_via_private *dev_priv, u32 reg,
+			      u32 val)
+{
+	writeb(val, (void __iomem *)(dev_priv->mmio->handle + reg));
+}
+
+static inline void via_write8_mask(struct drm_via_private *dev_priv,
+				   u32 reg, u32 mask, u32 val)
+{
+	u32 tmp;
+
+	tmp = readb((void __iomem *)(dev_priv->mmio->handle + reg));
+	tmp = (tmp & ~mask) | (val & mask);
+	writeb(tmp, (void __iomem *)(dev_priv->mmio->handle + reg));
+}
 
 extern const struct drm_ioctl_desc via_ioctls[];
 extern int via_max_ioctl;

drivers/gpu/drm/via/via_irq.c

@@ -108,7 +108,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
 	drm_via_irq_t *cur_irq = dev_priv->via_irqs;
 	int i;
 
-	status = VIA_READ(VIA_REG_INTERRUPT);
+	status = via_read(dev_priv, VIA_REG_INTERRUPT);
 	if (status & VIA_IRQ_VBLANK_PENDING) {
 		atomic_inc(&dev_priv->vbl_received);
 		if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
@@ -143,7 +143,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
 	}
 
 	/* Acknowledge interrupts */
-	VIA_WRITE(VIA_REG_INTERRUPT, status);
+	via_write(dev_priv, VIA_REG_INTERRUPT, status);
 
 
 	if (handled)
@@ -158,8 +158,8 @@ static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t *dev_priv)
 
 	if (dev_priv) {
 		/* Acknowledge interrupts */
-		status = VIA_READ(VIA_REG_INTERRUPT);
-		VIA_WRITE(VIA_REG_INTERRUPT, status |
+		status = via_read(dev_priv, VIA_REG_INTERRUPT);
+		via_write(dev_priv, VIA_REG_INTERRUPT, status |
 			  dev_priv->irq_pending_mask);
 	}
 }
@@ -174,11 +174,11 @@ int via_enable_vblank(struct drm_device *dev, unsigned int pipe)
 		return -EINVAL;
 	}
 
-	status = VIA_READ(VIA_REG_INTERRUPT);
-	VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_VBLANK_ENABLE);
+	status = via_read(dev_priv, VIA_REG_INTERRUPT);
+	via_write(dev_priv, VIA_REG_INTERRUPT, status | VIA_IRQ_VBLANK_ENABLE);
 
-	VIA_WRITE8(0x83d4, 0x11);
-	VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
+	via_write8(dev_priv, 0x83d4, 0x11);
+	via_write8_mask(dev_priv, 0x83d5, 0x30, 0x30);
 
 	return 0;
 }
@@ -188,11 +188,11 @@ void via_disable_vblank(struct drm_device *dev, unsigned int pipe)
 	drm_via_private_t *dev_priv = dev->dev_private;
 	u32 status;
 
-	status = VIA_READ(VIA_REG_INTERRUPT);
-	VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBLANK_ENABLE);
+	status = via_read(dev_priv, VIA_REG_INTERRUPT);
+	via_write(dev_priv, VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBLANK_ENABLE);
 
-	VIA_WRITE8(0x83d4, 0x11);
-	VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
+	via_write8(dev_priv, 0x83d4, 0x11);
+	via_write8_mask(dev_priv, 0x83d5, 0x30, 0);
 
 	if (pipe != 0)
 		DRM_ERROR("%s:  bad crtc %u\n", __func__, pipe);
@@ -234,7 +234,7 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
 
 	if (masks[real_irq][2] && !force_sequence) {
 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
-			    ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
+			    ((via_read(dev_priv, masks[irq][2]) & masks[irq][3]) ==
 			     masks[irq][4]));
 		cur_irq_sequence = atomic_read(&cur_irq->irq_received);
 	} else {
@@ -292,8 +292,8 @@ void via_driver_irq_preinstall(struct drm_device *dev)
 		dev_priv->last_vblank_valid = 0;
 
 		/* Clear VSync interrupt regs */
-		status = VIA_READ(VIA_REG_INTERRUPT);
-		VIA_WRITE(VIA_REG_INTERRUPT, status &
+		status = via_read(dev_priv, VIA_REG_INTERRUPT);
+		via_write(dev_priv, VIA_REG_INTERRUPT, status &
 			  ~(dev_priv->irq_enable_mask));
 
 		/* Clear bits if they're already high */
@@ -310,13 +310,13 @@ int via_driver_irq_postinstall(struct drm_device *dev)
 	if (!dev_priv)
 		return -EINVAL;
 
-	status = VIA_READ(VIA_REG_INTERRUPT);
-	VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
+	status = via_read(dev_priv, VIA_REG_INTERRUPT);
+	via_write(dev_priv, VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
 		  | dev_priv->irq_enable_mask);
 
 	/* Some magic, oh for some data sheets ! */
-	VIA_WRITE8(0x83d4, 0x11);
-	VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
+	via_write8(dev_priv, 0x83d4, 0x11);
+	via_write8_mask(dev_priv, 0x83d5, 0x30, 0x30);
 
 	return 0;
 }
@@ -331,11 +331,11 @@ void via_driver_irq_uninstall(struct drm_device *dev)
 
 		/* Some more magic, oh for some data sheets ! */
 
-		VIA_WRITE8(0x83d4, 0x11);
-		VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
+		via_write8(dev_priv, 0x83d4, 0x11);
+		via_write8_mask(dev_priv, 0x83d5, 0x30, 0);
 
-		status = VIA_READ(VIA_REG_INTERRUPT);
-		VIA_WRITE(VIA_REG_INTERRUPT, status &
+		status = via_read(dev_priv, VIA_REG_INTERRUPT);
+		via_write(dev_priv, VIA_REG_INTERRUPT, status &
 			  ~(VIA_IRQ_VBLANK_ENABLE | dev_priv->irq_enable_mask));
 	}
 }

drivers/gpu/drm/via/via_verifier.c

@@ -725,14 +725,14 @@ via_parse_header2(drm_via_private_t *dev_priv, uint32_t const **buffer,
 	next_fire = dev_priv->fire_offsets[*fire_count];
 	buf++;
 	cmd = (*buf & 0xFFFF0000) >> 16;
-	VIA_WRITE(HC_REG_TRANS_SET + HC_REG_BASE, *buf++);
+	via_write(dev_priv, HC_REG_TRANS_SET + HC_REG_BASE, *buf++);
 	switch (cmd) {
 	case HC_ParaType_CmdVdata:
 		while ((buf < buf_end) &&
 		       (*fire_count < dev_priv->num_fire_offsets) &&
 		       (*buf & HC_ACMD_MASK) == HC_ACMD_HCmdB) {
 			while (buf <= next_fire) {
-				VIA_WRITE(HC_REG_TRANS_SPACE + HC_REG_BASE +
+				via_write(dev_priv, HC_REG_TRANS_SPACE + HC_REG_BASE +
 					  (burst & 63), *buf++);
 				burst += 4;
 			}
@@ -753,7 +753,7 @@ via_parse_header2(drm_via_private_t *dev_priv, uint32_t const **buffer,
 			    (*buf & VIA_VIDEOMASK) == VIA_VIDEO_HEADER6)
 				break;
 
-			VIA_WRITE(HC_REG_TRANS_SPACE + HC_REG_BASE +
+			via_write(dev_priv, HC_REG_TRANS_SPACE + HC_REG_BASE +
 				  (burst & 63), *buf++);
 			burst += 4;
 		}
@@ -843,7 +843,7 @@ via_parse_header1(drm_via_private_t *dev_priv, uint32_t const **buffer,
 		cmd = *buf;
 		if ((cmd & HALCYON_HEADER1MASK) != HALCYON_HEADER1)
 			break;
-		VIA_WRITE((cmd & ~HALCYON_HEADER1MASK) << 2, *++buf);
+		via_write(dev_priv, (cmd & ~HALCYON_HEADER1MASK) << 2, *++buf);
 		buf++;
 	}
 	*buffer = buf;
@@ -894,7 +894,7 @@ via_parse_vheader5(drm_via_private_t *dev_priv, uint32_t const **buffer,
 	i = count = *buf;
 	buf += 3;
 	while (i--)
-		VIA_WRITE(addr, *buf++);
+		via_write(dev_priv, addr, *buf++);
 	if (count & 3)
 		buf += 4 - (count & 3);
 	*buffer = buf;
@@ -950,7 +950,7 @@ via_parse_vheader6(drm_via_private_t *dev_priv, uint32_t const **buffer,
 	buf += 3;
 	while (i--) {
 		addr = *buf++;
-		VIA_WRITE(addr, *buf++);
+		via_write(dev_priv, addr, *buf++);
 	}
 	count <<= 1;
 	if (count & 3)