From f9d56cd64ef3186d6ce072751f7f44dcd189f6bc Mon Sep 17 00:00:00 2001 From: Matt Roper Date: Thu, 29 Jul 2021 08:21:58 -0700 Subject: [PATCH] drm/i915: Make shadow tables range-based Rather than defining our shadow tables as a list of individual registers, provide them as a list of register ranges; we'll have some ranges of multiple registers being added soon (and we already have a couple adjacent registers that we can squash into a single range now). This change also defines the table with hex literal values rather than symbolic register names; since that's how the tables are defined in the bspec, this change will make it easier to review the tables overall. v2: - Force signed comparison on range overlap sanity check Signed-off-by: Matt Roper Reviewed-by: Caz Yokoyama Link: https://patchwork.freedesktop.org/patch/msgid/20210729152158.2646246-1-matthew.d.roper@intel.com --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 13 +- drivers/gpu/drm/i915/intel_uncore.c | 160 +++++++++--------- drivers/gpu/drm/i915/intel_uncore.h | 6 + drivers/gpu/drm/i915/selftests/intel_uncore.c | 32 ++-- 4 files changed, 108 insertions(+), 103 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index aae609d7d85dd..e9b8af9f08ea6 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -2067,12 +2067,7 @@ void intel_engine_apply_workarounds(struct intel_engine_cs *engine) wa_list_apply(engine->gt, &engine->wa_list); } -struct mcr_range { - u32 start; - u32 end; -}; - -static const struct mcr_range mcr_ranges_gen8[] = { +static const struct i915_range mcr_ranges_gen8[] = { { .start = 0x5500, .end = 0x55ff }, { .start = 0x7000, .end = 0x7fff }, { .start = 0x9400, .end = 0x97ff }, @@ -2081,7 +2076,7 @@ static const struct mcr_range mcr_ranges_gen8[] = { {}, }; -static const struct mcr_range mcr_ranges_gen12[] = { +static const struct i915_range mcr_ranges_gen12[] = { { .start = 0x8150, .end = 0x815f }, { .start = 0x9520, .end = 0x955f }, { .start = 0xb100, .end = 0xb3ff }, @@ -2090,7 +2085,7 @@ static const struct mcr_range mcr_ranges_gen12[] = { {}, }; -static const struct mcr_range mcr_ranges_xehp[] = { +static const struct i915_range mcr_ranges_xehp[] = { { .start = 0x4000, .end = 0x4aff }, { .start = 0x5200, .end = 0x52ff }, { .start = 0x5400, .end = 0x7fff }, @@ -2109,7 +2104,7 @@ static const struct mcr_range mcr_ranges_xehp[] = { static bool mcr_range(struct drm_i915_private *i915, u32 offset) { - const struct mcr_range *mcr_ranges; + const struct i915_range *mcr_ranges; int i; if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 9ed7ce71e5202..52601b960248b 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -946,101 +946,95 @@ static const struct intel_forcewake_range __vlv_fw_ranges[] = { find_fw_domain(uncore, offset) /* *Must* be sorted by offset! See intel_shadow_table_check(). */ -static const i915_reg_t gen8_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(GEN6_BSD_RING_BASE), /* 0x12000 (base) */ - RING_TAIL(VEBOX_RING_BASE), /* 0x1a000 (base) */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ +static const struct i915_range gen8_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0x12030, .end = 0x12030 }, + { .start = 0x1a030, .end = 0x1a030 }, + { .start = 0x22030, .end = 0x22030 }, /* TODO: Other registers are not yet used */ }; -static const i915_reg_t gen11_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - RING_EXECLIST_CONTROL(RENDER_RING_BASE), /* 0x2550 */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ - RING_EXECLIST_CONTROL(BLT_RING_BASE), /* 0x22550 */ - RING_TAIL(GEN11_BSD_RING_BASE), /* 0x1C0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD_RING_BASE), /* 0x1C0550 */ - RING_TAIL(GEN11_BSD2_RING_BASE), /* 0x1C4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD2_RING_BASE), /* 0x1C4550 */ - RING_TAIL(GEN11_VEBOX_RING_BASE), /* 0x1C8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX_RING_BASE), /* 0x1C8550 */ - RING_TAIL(GEN11_BSD3_RING_BASE), /* 0x1D0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD3_RING_BASE), /* 0x1D0550 */ - RING_TAIL(GEN11_BSD4_RING_BASE), /* 0x1D4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD4_RING_BASE), /* 0x1D4550 */ - RING_TAIL(GEN11_VEBOX2_RING_BASE), /* 0x1D8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX2_RING_BASE), /* 0x1D8550 */ +static const struct i915_range gen11_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0x2550, .end = 0x2550 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0x22030, .end = 0x22030 }, + { .start = 0x22550, .end = 0x22550 }, + { .start = 0x1C0030, .end = 0x1C0030 }, + { .start = 0x1C0550, .end = 0x1C0550 }, + { .start = 0x1C4030, .end = 0x1C4030 }, + { .start = 0x1C4550, .end = 0x1C4550 }, + { .start = 0x1C8030, .end = 0x1C8030 }, + { .start = 0x1C8550, .end = 0x1C8550 }, + { .start = 0x1D0030, .end = 0x1D0030 }, + { .start = 0x1D0550, .end = 0x1D0550 }, + { .start = 0x1D4030, .end = 0x1D4030 }, + { .start = 0x1D4550, .end = 0x1D4550 }, + { .start = 0x1D8030, .end = 0x1D8030 }, + { .start = 0x1D8550, .end = 0x1D8550 }, /* TODO: Other registers are not yet used */ }; -static const i915_reg_t gen12_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - RING_EXECLIST_CONTROL(RENDER_RING_BASE), /* 0x2550 */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ - RING_EXECLIST_CONTROL(BLT_RING_BASE), /* 0x22550 */ - RING_TAIL(GEN11_BSD_RING_BASE), /* 0x1C0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD_RING_BASE), /* 0x1C0550 */ - RING_TAIL(GEN11_BSD2_RING_BASE), /* 0x1C4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD2_RING_BASE), /* 0x1C4550 */ - RING_TAIL(GEN11_VEBOX_RING_BASE), /* 0x1C8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX_RING_BASE), /* 0x1C8550 */ - RING_TAIL(GEN11_BSD3_RING_BASE), /* 0x1D0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD3_RING_BASE), /* 0x1D0550 */ - RING_TAIL(GEN11_BSD4_RING_BASE), /* 0x1D4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD4_RING_BASE), /* 0x1D4550 */ - RING_TAIL(GEN11_VEBOX2_RING_BASE), /* 0x1D8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX2_RING_BASE), /* 0x1D8550 */ +static const struct i915_range gen12_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0x2550, .end = 0x2550 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0x22030, .end = 0x22030 }, + { .start = 0x22550, .end = 0x22550 }, + { .start = 0x1C0030, .end = 0x1C0030 }, + { .start = 0x1C0550, .end = 0x1C0550 }, + { .start = 0x1C4030, .end = 0x1C4030 }, + { .start = 0x1C4550, .end = 0x1C4550 }, + { .start = 0x1C8030, .end = 0x1C8030 }, + { .start = 0x1C8550, .end = 0x1C8550 }, + { .start = 0x1D0030, .end = 0x1D0030 }, + { .start = 0x1D0550, .end = 0x1D0550 }, + { .start = 0x1D4030, .end = 0x1D4030 }, + { .start = 0x1D4550, .end = 0x1D4550 }, + { .start = 0x1D8030, .end = 0x1D8030 }, + { .start = 0x1D8550, .end = 0x1D8550 }, /* TODO: Other registers are not yet used */ }; -static const i915_reg_t xehp_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - RING_EXECLIST_CONTROL(RENDER_RING_BASE), /* 0x2550 */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ - RING_EXECLIST_CONTROL(BLT_RING_BASE), /* 0x22550 */ - RING_TAIL(GEN11_BSD_RING_BASE), /* 0x1C0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD_RING_BASE), /* 0x1C0550 */ - RING_TAIL(GEN11_BSD2_RING_BASE), /* 0x1C4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD2_RING_BASE), /* 0x1C4550 */ - RING_TAIL(GEN11_VEBOX_RING_BASE), /* 0x1C8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX_RING_BASE), /* 0x1C8550 */ - RING_TAIL(GEN11_BSD3_RING_BASE), /* 0x1D0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD3_RING_BASE), /* 0x1D0550 */ - RING_TAIL(GEN11_BSD4_RING_BASE), /* 0x1D4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD4_RING_BASE), /* 0x1D4550 */ - RING_TAIL(GEN11_VEBOX2_RING_BASE), /* 0x1D8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX2_RING_BASE), /* 0x1D8550 */ - RING_TAIL(XEHP_BSD5_RING_BASE), /* 0x1E0000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD5_RING_BASE), /* 0x1E0550 */ - RING_TAIL(XEHP_BSD6_RING_BASE), /* 0x1E4000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD6_RING_BASE), /* 0x1E4550 */ - RING_TAIL(XEHP_VEBOX3_RING_BASE), /* 0x1E8000 (base) */ - RING_EXECLIST_CONTROL(XEHP_VEBOX3_RING_BASE), /* 0x1E8550 */ - RING_TAIL(XEHP_BSD7_RING_BASE), /* 0x1F0000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD7_RING_BASE), /* 0x1F0550 */ - RING_TAIL(XEHP_BSD8_RING_BASE), /* 0x1F4000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD8_RING_BASE), /* 0x1F4550 */ - RING_TAIL(XEHP_VEBOX4_RING_BASE), /* 0x1F8000 (base) */ - RING_EXECLIST_CONTROL(XEHP_VEBOX4_RING_BASE), /* 0x1F8550 */ +static const struct i915_range xehp_shadowed_regs[] = { + { .start = 0x2000, .end = 0x2030 }, + { .start = 0x2550, .end = 0x2550 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0x22030, .end = 0x22030 }, + { .start = 0x22550, .end = 0x22550 }, + { .start = 0x1C0030, .end = 0x1C0030 }, + { .start = 0x1C0550, .end = 0x1C0550 }, + { .start = 0x1C4030, .end = 0x1C4030 }, + { .start = 0x1C4550, .end = 0x1C4550 }, + { .start = 0x1C8030, .end = 0x1C8030 }, + { .start = 0x1C8550, .end = 0x1C8550 }, + { .start = 0x1D0030, .end = 0x1D0030 }, + { .start = 0x1D0550, .end = 0x1D0550 }, + { .start = 0x1D4030, .end = 0x1D4030 }, + { .start = 0x1D4550, .end = 0x1D4550 }, + { .start = 0x1D8030, .end = 0x1D8030 }, + { .start = 0x1D8550, .end = 0x1D8550 }, + { .start = 0x1E0030, .end = 0x1E0030 }, + { .start = 0x1E0550, .end = 0x1E0550 }, + { .start = 0x1E4030, .end = 0x1E4030 }, + { .start = 0x1E4550, .end = 0x1E4550 }, + { .start = 0x1E8030, .end = 0x1E8030 }, + { .start = 0x1E8550, .end = 0x1E8550 }, + { .start = 0x1F0030, .end = 0x1F0030 }, + { .start = 0x1F0550, .end = 0x1F0550 }, + { .start = 0x1F4030, .end = 0x1F4030 }, + { .start = 0x1F4550, .end = 0x1F4550 }, + { .start = 0x1F8030, .end = 0x1F8030 }, + { .start = 0x1F8550, .end = 0x1F8550 }, /* TODO: Other registers are not yet used */ }; -static int mmio_reg_cmp(u32 key, const i915_reg_t *reg) +static int mmio_range_cmp(u32 key, const struct i915_range *range) { - u32 offset = i915_mmio_reg_offset(*reg); - - if (key < offset) + if (key < range->start) return -1; - else if (key > offset) + else if (key > range->end) return 1; else return 0; @@ -1049,9 +1043,9 @@ static int mmio_reg_cmp(u32 key, const i915_reg_t *reg) #define __is_X_shadowed(x) \ static bool is_##x##_shadowed(u32 offset) \ { \ - const i915_reg_t *regs = x##_shadowed_regs; \ + const struct i915_range *regs = x##_shadowed_regs; \ return BSEARCH(offset, regs, ARRAY_SIZE(x##_shadowed_regs), \ - mmio_reg_cmp); \ + mmio_range_cmp); \ } __is_X_shadowed(gen8) diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h index 3c0b0a8b5250d..531665b08039c 100644 --- a/drivers/gpu/drm/i915/intel_uncore.h +++ b/drivers/gpu/drm/i915/intel_uncore.h @@ -119,6 +119,12 @@ struct intel_forcewake_range { enum forcewake_domains domains; }; +/* Other register ranges (e.g., shadow tables, MCR tables, etc.) */ +struct i915_range { + u32 start; + u32 end; +}; + struct intel_uncore { void __iomem *regs; diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c index 720b60853f8bc..d6a9c11afa23b 100644 --- a/drivers/gpu/drm/i915/selftests/intel_uncore.c +++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c @@ -62,30 +62,40 @@ static int intel_fw_table_check(const struct intel_forcewake_range *ranges, static int intel_shadow_table_check(void) { struct { - const i915_reg_t *regs; + const struct i915_range *regs; unsigned int size; - } reg_lists[] = { + } range_lists[] = { { gen8_shadowed_regs, ARRAY_SIZE(gen8_shadowed_regs) }, { gen11_shadowed_regs, ARRAY_SIZE(gen11_shadowed_regs) }, { gen12_shadowed_regs, ARRAY_SIZE(gen12_shadowed_regs) }, { xehp_shadowed_regs, ARRAY_SIZE(xehp_shadowed_regs) }, }; - const i915_reg_t *reg; + const struct i915_range *range; unsigned int i, j; s32 prev; - for (j = 0; j < ARRAY_SIZE(reg_lists); ++j) { - reg = reg_lists[j].regs; - for (i = 0, prev = -1; i < reg_lists[j].size; i++, reg++) { - u32 offset = i915_mmio_reg_offset(*reg); + for (j = 0; j < ARRAY_SIZE(range_lists); ++j) { + range = range_lists[j].regs; + for (i = 0, prev = -1; i < range_lists[j].size; i++, range++) { + if (range->end < range->start) { + pr_err("%s: range[%d]:(%06x-%06x) has end before start\n", + __func__, i, range->start, range->end); + return -EINVAL; + } + + if (prev >= (s32)range->start) { + pr_err("%s: range[%d]:(%06x-%06x) is before end of previous (%06x)\n", + __func__, i, range->start, range->end, prev); + return -EINVAL; + } - if (prev >= (s32)offset) { - pr_err("%s: entry[%d]:(%x) is before previous (%x)\n", - __func__, i, offset, prev); + if (range->start % 4) { + pr_err("%s: range[%d]:(%06x-%06x) has non-dword-aligned start\n", + __func__, i, range->start, range->end); return -EINVAL; } - prev = offset; + prev = range->end; } } -- 2.39.5