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iommu/apple-dart: Add support for t8103 USB4 DART
This variant of the regular t8103 DART is used for the two USB4/Thunderbolt PCIe controllers. It supports 64 instead of 16 streams which requires a slightly different MMIO layout. Acked-by: Hector Martin <marcan@marcan.st> Signed-off-by: Sven Peter <sven@svenpeter.dev> Link: https://lore.kernel.org/r/20231126151701.16534-4-sven@svenpeter.dev Signed-off-by: Joerg Roedel <jroedel@suse.de>
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1 changed files with 29 additions and 0 deletions
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@ -81,6 +81,7 @@
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#define DART_T8020_TCR_BYPASS_DAPF BIT(12)
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#define DART_T8020_TTBR 0x200
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#define DART_T8020_USB4_TTBR 0x400
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#define DART_T8020_TTBR_VALID BIT(31)
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#define DART_T8020_TTBR_ADDR_FIELD_SHIFT 0
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#define DART_T8020_TTBR_SHIFT 12
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@ -1217,6 +1218,33 @@ static const struct apple_dart_hw apple_dart_hw_t8103 = {
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.ttbr_shift = DART_T8020_TTBR_SHIFT,
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.ttbr_count = 4,
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};
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static const struct apple_dart_hw apple_dart_hw_t8103_usb4 = {
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.type = DART_T8020,
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.irq_handler = apple_dart_t8020_irq,
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.invalidate_tlb = apple_dart_t8020_hw_invalidate_tlb,
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.oas = 36,
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.fmt = APPLE_DART,
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.max_sid_count = 64,
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.enable_streams = DART_T8020_STREAMS_ENABLE,
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.lock = DART_T8020_CONFIG,
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.lock_bit = DART_T8020_CONFIG_LOCK,
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.error = DART_T8020_ERROR,
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.tcr = DART_T8020_TCR,
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.tcr_enabled = DART_T8020_TCR_TRANSLATE_ENABLE,
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.tcr_disabled = 0,
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.tcr_bypass = 0,
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.ttbr = DART_T8020_USB4_TTBR,
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.ttbr_valid = DART_T8020_TTBR_VALID,
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.ttbr_addr_field_shift = DART_T8020_TTBR_ADDR_FIELD_SHIFT,
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.ttbr_shift = DART_T8020_TTBR_SHIFT,
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.ttbr_count = 4,
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};
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static const struct apple_dart_hw apple_dart_hw_t6000 = {
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.type = DART_T6000,
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.irq_handler = apple_dart_t8020_irq,
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@ -1309,6 +1337,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(apple_dart_pm_ops, apple_dart_suspend, apple_dar
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static const struct of_device_id apple_dart_of_match[] = {
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{ .compatible = "apple,t8103-dart", .data = &apple_dart_hw_t8103 },
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{ .compatible = "apple,t8103-usb4-dart", .data = &apple_dart_hw_t8103_usb4 },
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{ .compatible = "apple,t8110-dart", .data = &apple_dart_hw_t8110 },
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{ .compatible = "apple,t6000-dart", .data = &apple_dart_hw_t6000 },
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{},
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