This will allow futher simplifications in the uncore handling. v2: move register access setup under uncore (Chris)
Signed-off-by: Daniele Ceraolo Spurio <[email protected]> Cc: Paulo Zanoni <[email protected]> Cc: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/i915_drv.c | 49 +++----------------------- 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 | 54 ++++++++++++++++++++++++++--- drivers/gpu/drm/i915/intel_uncore.h | 4 ++- 6 files changed, 74 insertions(+), 67 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 5561488ecfcd..ca41a3da1918 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -930,46 +930,6 @@ static void i915_driver_cleanup_early(struct drm_i915_private *dev_priv) i915_engines_cleanup(dev_priv); } -static int i915_mmio_setup(struct drm_i915_private *dev_priv) -{ - struct pci_dev *pdev = dev_priv->drm.pdev; - int mmio_bar; - int mmio_size; - - mmio_bar = IS_GEN(dev_priv, 2) ? 1 : 0; - /* - * Before gen4, the registers and the GTT are behind different BARs. - * However, from gen4 onwards, the registers and the GTT are shared - * in the same BAR, so we want to restrict this ioremap from - * clobbering the GTT which we want ioremap_wc instead. Fortunately, - * the register BAR remains the same size for all the earlier - * generations up to Ironlake. - */ - if (INTEL_GEN(dev_priv) < 5) - 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) { - DRM_ERROR("failed to map registers\n"); - - return -EIO; - } - - /* Try to make sure MCHBAR is enabled before poking at it */ - intel_setup_mchbar(dev_priv); - - return 0; -} - -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); -} - /** * i915_driver_init_mmio - setup device MMIO * @dev_priv: device private @@ -989,11 +949,12 @@ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv) if (i915_get_bridge_dev(dev_priv)) return -EIO; - ret = i915_mmio_setup(dev_priv); + ret = intel_uncore_init(&dev_priv->uncore); if (ret < 0) goto err_bridge; - intel_uncore_init(&dev_priv->uncore); + /* Try to make sure MCHBAR is enabled before poking at it */ + intel_setup_mchbar(dev_priv); intel_device_info_init_mmio(dev_priv); @@ -1010,8 +971,8 @@ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv) return 0; err_uncore: + intel_teardown_mchbar(dev_priv); intel_uncore_fini(&dev_priv->uncore); - i915_mmio_cleanup(dev_priv); err_bridge: pci_dev_put(dev_priv->bridge_dev); @@ -1024,8 +985,8 @@ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv) */ static void i915_driver_cleanup_mmio(struct drm_i915_private *dev_priv) { + intel_teardown_mchbar(dev_priv); intel_uncore_fini(&dev_priv->uncore); - i915_mmio_cleanup(dev_priv); pci_dev_put(dev_priv->bridge_dev); } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 64f0e13d6912..58a77b01fe71 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; @@ -3488,14 +3486,14 @@ 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 82d487189a34..1686c0c973f7 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 e54e0064b2d6..721ae4b166d5 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -2413,12 +2413,12 @@ 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 bb9a10cc6904..e60856069971 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1330,7 +1330,6 @@ 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; @@ -1343,8 +1342,8 @@ 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; @@ -1539,9 +1538,53 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb, return NOTIFY_OK; } -void intel_uncore_init(struct intel_uncore *uncore) +static int uncore_mmio_setup(struct intel_uncore *uncore) { struct drm_i915_private *i915 = uncore_to_i915(uncore); + struct pci_dev *pdev = i915->drm.pdev; + int mmio_bar; + int mmio_size; + + mmio_bar = IS_GEN(i915, 2) ? 1 : 0; + /* + * Before gen4, the registers and the GTT are behind different BARs. + * However, from gen4 onwards, the registers and the GTT are shared + * in the same BAR, so we want to restrict this ioremap from + * clobbering the GTT which we want ioremap_wc instead. Fortunately, + * the register BAR remains the same size for all the earlier + * generations up to Ironlake. + */ + if (INTEL_GEN(i915) < 5) + mmio_size = 512 * 1024; + else + mmio_size = 2 * 1024 * 1024; + uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size); + if (uncore->regs == NULL) { + DRM_ERROR("failed to map registers\n"); + + return -EIO; + } + + return 0; +} + +static void uncore_mmio_cleanup(struct intel_uncore *uncore) +{ + struct drm_i915_private *i915 = uncore_to_i915(uncore); + struct pci_dev *pdev = i915->drm.pdev; + + pci_iounmap(pdev, uncore->regs); +} + + +int intel_uncore_init(struct intel_uncore *uncore) +{ + struct drm_i915_private *i915 = uncore_to_i915(uncore); + int ret; + + ret = uncore_mmio_setup(uncore); + if (ret) + return ret; i915_check_vgpu(i915); @@ -1589,6 +1632,8 @@ void intel_uncore_init(struct intel_uncore *uncore) } iosf_mbi_register_pmic_bus_access_notifier(&uncore->pmic_bus_access_nb); + + return 0; } /* @@ -1637,6 +1682,7 @@ void intel_uncore_fini(struct intel_uncore *uncore) &uncore->pmic_bus_access_nb); intel_uncore_forcewake_reset(uncore); iosf_mbi_punit_release(); + uncore_mmio_cleanup(uncore); } static const struct reg_whitelist { diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h index b1b596c81451..d345e5ab04a5 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; @@ -142,7 +144,7 @@ forcewake_domain_to_uncore(const struct intel_uncore_forcewake_domain *d) } void intel_uncore_sanitize(struct drm_i915_private *dev_priv); -void intel_uncore_init(struct intel_uncore *uncore); +int intel_uncore_init(struct intel_uncore *uncore); void intel_uncore_prune(struct intel_uncore *uncore); bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv); bool intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv); -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
