diff --git a/drivers/gpu/drm/xe/regs/xe_i2c_regs.h b/drivers/gpu/drm/xe/regs/xe_i2c_regs.h index af781c8e4a80..f2e455e2bfe4 100644 --- a/drivers/gpu/drm/xe/regs/xe_i2c_regs.h +++ b/drivers/gpu/drm/xe/regs/xe_i2c_regs.h @@ -14,6 +14,9 @@ #define REG_SG_REMAP_ADDR_PREFIX XE_REG(SOC_BASE + 0x0164) #define REG_SG_REMAP_ADDR_POSTFIX XE_REG(SOC_BASE + 0x0168) +#define I2C_BRIDGE_PCICFGCTL XE_REG(I2C_BRIDGE_OFFSET + 0x200) +#define ACPI_INTR_EN REG_BIT(1) + #define I2C_CONFIG_CMD XE_REG(I2C_CONFIG_SPACE_OFFSET + PCI_COMMAND) #define I2C_CONFIG_PMCSR XE_REG(I2C_CONFIG_SPACE_OFFSET + 0x84) diff --git a/drivers/gpu/drm/xe/xe_i2c.c b/drivers/gpu/drm/xe/xe_i2c.c index 25c6b8f3c0bb..0b5452be0c87 100644 --- a/drivers/gpu/drm/xe/xe_i2c.c +++ b/drivers/gpu/drm/xe/xe_i2c.c @@ -182,6 +182,26 @@ void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl) generic_handle_irq_safe(xe->i2c->adapter_irq); } +void xe_i2c_irq_reset(struct xe_device *xe) +{ + struct xe_mmio *mmio = xe_root_tile_mmio(xe); + + if (!xe_i2c_irq_present(xe)) + return; + + xe_mmio_rmw32(mmio, I2C_BRIDGE_PCICFGCTL, ACPI_INTR_EN, 0); +} + +void xe_i2c_irq_postinstall(struct xe_device *xe) +{ + struct xe_mmio *mmio = xe_root_tile_mmio(xe); + + if (!xe_i2c_irq_present(xe)) + return; + + xe_mmio_rmw32(mmio, I2C_BRIDGE_PCICFGCTL, 0, ACPI_INTR_EN); +} + static int xe_i2c_irq_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hw_irq_num) { @@ -339,6 +359,7 @@ int xe_i2c_probe(struct xe_device *xe) if (ret) goto err_remove_irq; + xe_i2c_irq_postinstall(xe); return devm_add_action_or_reset(drm_dev, xe_i2c_remove, i2c); err_remove_irq: diff --git a/drivers/gpu/drm/xe/xe_i2c.h b/drivers/gpu/drm/xe/xe_i2c.h index ecd5f10358e2..425d8160835f 100644 --- a/drivers/gpu/drm/xe/xe_i2c.h +++ b/drivers/gpu/drm/xe/xe_i2c.h @@ -51,12 +51,16 @@ struct xe_i2c { int xe_i2c_probe(struct xe_device *xe); bool xe_i2c_present(struct xe_device *xe); void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl); +void xe_i2c_irq_postinstall(struct xe_device *xe); +void xe_i2c_irq_reset(struct xe_device *xe); void xe_i2c_pm_suspend(struct xe_device *xe); void xe_i2c_pm_resume(struct xe_device *xe, bool d3cold); #else static inline int xe_i2c_probe(struct xe_device *xe) { return 0; } static inline bool xe_i2c_present(struct xe_device *xe) { return false; } static inline void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl) { } +static inline void xe_i2c_irq_postinstall(struct xe_device *xe) { } +static inline void xe_i2c_irq_reset(struct xe_device *xe) { } static inline void xe_i2c_pm_suspend(struct xe_device *xe) { } static inline void xe_i2c_pm_resume(struct xe_device *xe, bool d3cold) { } #endif diff --git a/drivers/gpu/drm/xe/xe_irq.c b/drivers/gpu/drm/xe/xe_irq.c index 870edaf69388..af519414a429 100644 --- a/drivers/gpu/drm/xe/xe_irq.c +++ b/drivers/gpu/drm/xe/xe_irq.c @@ -616,6 +616,7 @@ static void xe_irq_reset(struct xe_device *xe) tile = xe_device_get_root_tile(xe); mask_and_disable(tile, GU_MISC_IRQ_OFFSET); xe_display_irq_reset(xe); + xe_i2c_irq_reset(xe); /* * The tile's top-level status register should be the last one @@ -657,6 +658,7 @@ static void xe_irq_postinstall(struct xe_device *xe) } xe_display_irq_postinstall(xe, xe_root_mmio_gt(xe)); + xe_i2c_irq_postinstall(xe); /* * ASLE backlight operations are reported via GUnit GSE interrupts