From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- tools/perf/util/pmu.l | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 tools/perf/util/pmu.l (limited to 'tools/perf/util/pmu.l') diff --git a/tools/perf/util/pmu.l b/tools/perf/util/pmu.l new file mode 100644 index 000000000..67b247be6 --- /dev/null +++ b/tools/perf/util/pmu.l @@ -0,0 +1,48 @@ +%option prefix="perf_pmu_" +%option reentrant +%option bison-bridge + +%{ +#include +#include +#include "pmu.h" +#include "pmu-bison.h" + +char *perf_pmu_get_text(yyscan_t yyscanner); +YYSTYPE *perf_pmu_get_lval(yyscan_t yyscanner); + +static int value(yyscan_t scanner, int base) +{ + YYSTYPE *yylval = perf_pmu_get_lval(scanner); + char *text = perf_pmu_get_text(scanner); + long num; + + errno = 0; + num = strtoul(text, NULL, base); + if (errno) + return PP_ERROR; + + yylval->num = num; + return PP_VALUE; +} + +%} + +num_dec [0-9]+ + +%% + +{num_dec} { return value(yyscanner, 10); } +config { return PP_CONFIG; } +- { return '-'; } +: { return ':'; } +, { return ','; } +. { ; } +\n { ; } + +%% + +int perf_pmu_wrap(void *scanner __maybe_unused) +{ + return 1; +} -- cgit v1.3.1