[RFC 07/10] drm/i915: move regs pointer inside the uncore structure

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This will allow futher simplifications in the uncore handling.

RFC: if we want to keep the pointer logically separate from the uncore,
we could also move both the regs pointer and the uncore struct
inside a new structure (intel_mmio?) and pass that around instead, or
just take a copy of the pointer

Cc: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_drv.c     |  6 +++---
 drivers/gpu/drm/i915/i915_drv.h     |  6 ++----
 drivers/gpu/drm/i915/i915_irq.c     | 22 +++++++++++-----------
 drivers/gpu/drm/i915/intel_lrc.c    |  6 +++---
 drivers/gpu/drm/i915/intel_uncore.c |  5 ++---
 drivers/gpu/drm/i915/intel_uncore.h |  2 ++
 6 files changed, 23 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a2e039f523c0..2470c1ef4951 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -949,8 +949,8 @@ static int i915_mmio_setup(struct drm_i915_private *dev_priv)
 		mmio_size = 512 * 1024;
 	else
 		mmio_size = 2 * 1024 * 1024;
-	dev_priv->regs = pci_iomap(pdev, mmio_bar, mmio_size);
-	if (dev_priv->regs == NULL) {
+	dev_priv->uncore.regs = pci_iomap(pdev, mmio_bar, mmio_size);
+	if (dev_priv->uncore.regs == NULL) {
 		DRM_ERROR("failed to map registers\n");
 
 		return -EIO;
@@ -967,7 +967,7 @@ static void i915_mmio_cleanup(struct drm_i915_private *dev_priv)
 	struct pci_dev *pdev = dev_priv->drm.pdev;
 
 	intel_teardown_mchbar(dev_priv);
-	pci_iounmap(pdev, dev_priv->regs);
+	pci_iounmap(pdev, dev_priv->uncore.regs);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8a4b5bbac02e..293bf68fd8ba 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1505,8 +1505,6 @@ struct drm_i915_private {
 	 */
 	resource_size_t stolen_usable_size;	/* Total size minus reserved ranges */
 
-	void __iomem *regs;
-
 	struct intel_uncore uncore;
 
 	struct i915_virtual_gpu vgpu;
@@ -3490,14 +3488,14 @@ static inline u64 intel_rc6_residency_us(struct drm_i915_private *dev_priv,
 static inline uint##x##_t __raw_i915_read##x(const struct drm_i915_private *dev_priv, \
 					     i915_reg_t reg) \
 { \
-	return read##s(dev_priv->regs + i915_mmio_reg_offset(reg)); \
+	return read##s(dev_priv->uncore.regs + i915_mmio_reg_offset(reg)); \
 }
 
 #define __raw_write(x, s) \
 static inline void __raw_i915_write##x(const struct drm_i915_private *dev_priv, \
 				       i915_reg_t reg, uint##x##_t val) \
 { \
-	write##s(val, dev_priv->regs + i915_mmio_reg_offset(reg)); \
+	write##s(val, dev_priv->uncore.regs + i915_mmio_reg_offset(reg)); \
 }
 __raw_read(8, b)
 __raw_read(16, w)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index c823d2e76852..f5a5cdf2f645 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -268,7 +268,7 @@ static bool gen11_reset_one_iir(struct drm_i915_private * const i915,
 				const unsigned int bank,
 				const unsigned int bit)
 {
-	void __iomem * const regs = i915->regs;
+	void __iomem * const regs = i915->uncore.regs;
 	u32 dw;
 
 	lockdep_assert_held(&i915->irq_lock);
@@ -1471,7 +1471,7 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir)
 static void gen8_gt_irq_ack(struct drm_i915_private *i915,
 			    u32 master_ctl, u32 gt_iir[4])
 {
-	void __iomem * const regs = i915->regs;
+	void __iomem * const regs = i915->uncore.regs;
 
 #define GEN8_GT_IRQS (GEN8_GT_RCS_IRQ | \
 		      GEN8_GT_BCS_IRQ | \
@@ -2868,7 +2868,7 @@ static inline void gen8_master_intr_enable(void __iomem * const regs)
 static irqreturn_t gen8_irq_handler(int irq, void *arg)
 {
 	struct drm_i915_private *dev_priv = to_i915(arg);
-	void __iomem * const regs = dev_priv->regs;
+	void __iomem * const regs = dev_priv->uncore.regs;
 	u32 master_ctl;
 	u32 gt_iir[4];
 
@@ -2902,7 +2902,7 @@ static u32
 gen11_gt_engine_identity(struct drm_i915_private * const i915,
 			 const unsigned int bank, const unsigned int bit)
 {
-	void __iomem * const regs = i915->regs;
+	void __iomem * const regs = i915->uncore.regs;
 	u32 timeout_ts;
 	u32 ident;
 
@@ -2986,7 +2986,7 @@ static void
 gen11_gt_bank_handler(struct drm_i915_private * const i915,
 		      const unsigned int bank)
 {
-	void __iomem * const regs = i915->regs;
+	void __iomem * const regs = i915->uncore.regs;
 	unsigned long intr_dw;
 	unsigned int bit;
 
@@ -3029,7 +3029,7 @@ gen11_gt_irq_handler(struct drm_i915_private * const i915,
 static u32
 gen11_gu_misc_irq_ack(struct drm_i915_private *dev_priv, const u32 master_ctl)
 {
-	void __iomem * const regs = dev_priv->regs;
+	void __iomem * const regs = dev_priv->uncore.regs;
 	u32 iir;
 
 	if (!(master_ctl & GEN11_GU_MISC_IRQ))
@@ -3070,7 +3070,7 @@ static inline void gen11_master_intr_enable(void __iomem * const regs)
 static irqreturn_t gen11_irq_handler(int irq, void *arg)
 {
 	struct drm_i915_private * const i915 = to_i915(arg);
-	void __iomem * const regs = i915->regs;
+	void __iomem * const regs = i915->uncore.regs;
 	u32 master_ctl;
 	u32 gu_misc_iir;
 
@@ -3351,7 +3351,7 @@ static void gen8_irq_reset(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	int pipe;
 
-	gen8_master_intr_disable(dev_priv->regs);
+	gen8_master_intr_disable(dev_priv->uncore.regs);
 
 	gen8_gt_irq_reset(dev_priv);
 
@@ -3393,7 +3393,7 @@ static void gen11_irq_reset(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe;
 
-	gen11_master_intr_disable(dev_priv->regs);
+	gen11_master_intr_disable(dev_priv->uncore.regs);
 
 	gen11_gt_irq_reset(dev_priv);
 
@@ -3998,7 +3998,7 @@ static int gen8_irq_postinstall(struct drm_device *dev)
 	if (HAS_PCH_SPLIT(dev_priv))
 		ibx_irq_postinstall(dev);
 
-	gen8_master_intr_enable(dev_priv->regs);
+	gen8_master_intr_enable(dev_priv->uncore.regs);
 
 	return 0;
 }
@@ -4060,7 +4060,7 @@ static int gen11_irq_postinstall(struct drm_device *dev)
 
 	I915_WRITE(GEN11_DISPLAY_INT_CTL, GEN11_DISPLAY_IRQ_ENABLE);
 
-	gen11_master_intr_enable(dev_priv->regs);
+	gen11_master_intr_enable(dev_priv->uncore.regs);
 	POSTING_READ(GEN11_GFX_MSTR_IRQ);
 
 	return 0;
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index dc3de09c7586..0e6dd9c1365a 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2412,12 +2412,12 @@ static int logical_ring_init(struct intel_engine_cs *engine)
 	intel_engine_init_workarounds(engine);
 
 	if (HAS_LOGICAL_RING_ELSQ(i915)) {
-		execlists->submit_reg = i915->regs +
+		execlists->submit_reg = i915->uncore.regs +
 			i915_mmio_reg_offset(RING_EXECLIST_SQ_CONTENTS(engine));
-		execlists->ctrl_reg = i915->regs +
+		execlists->ctrl_reg = i915->uncore.regs +
 			i915_mmio_reg_offset(RING_EXECLIST_CONTROL(engine));
 	} else {
-		execlists->submit_reg = i915->regs +
+		execlists->submit_reg = i915->uncore.regs +
 			i915_mmio_reg_offset(RING_ELSP(engine));
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 32c75337b96d..ce076d046b65 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1328,7 +1328,6 @@ static void fw_domain_init(struct intel_uncore *uncore,
 			   i915_reg_t reg_ack)
 {
 	struct intel_uncore_forcewake_domain *d;
-	struct drm_i915_private *i915 = uncore_to_i915(uncore);
 
 	if (WARN_ON(domain_id >= FW_DOMAIN_ID_COUNT))
 		return;
@@ -1341,8 +1340,8 @@ static void fw_domain_init(struct intel_uncore *uncore,
 	WARN_ON(!i915_mmio_reg_valid(reg_ack));
 
 	d->wake_count = 0;
-	d->reg_set = i915->regs + i915_mmio_reg_offset(reg_set);
-	d->reg_ack = i915->regs + i915_mmio_reg_offset(reg_ack);
+	d->reg_set = uncore->regs + i915_mmio_reg_offset(reg_set);
+	d->reg_ack = uncore->regs + i915_mmio_reg_offset(reg_ack);
 
 	d->id = domain_id;
 
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index 4d0d7ec785f8..9c32714fa1ab 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -93,6 +93,8 @@ struct intel_forcewake_range {
 };
 
 struct intel_uncore {
+	void __iomem *regs;
+
 	spinlock_t lock; /** lock is also taken in irq contexts. */
 
 	const struct intel_forcewake_range *fw_domains_table;
-- 
2.20.1

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