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/ui/setup.c | 141 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 tools/perf/ui/setup.c (limited to 'tools/perf/ui/setup.c') diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c new file mode 100644 index 000000000..ff800047e --- /dev/null +++ b/tools/perf/ui/setup.c @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include + +#include +#include "../util/debug.h" +#include "../util/hist.h" +#include "ui.h" + +struct mutex ui__lock; +void *perf_gtk_handle; +int use_browser = -1; + +#define PERF_GTK_DSO "libperf-gtk.so" + +#ifdef HAVE_GTK2_SUPPORT + +static int setup_gtk_browser(void) +{ + int (*perf_ui_init)(void); + + if (perf_gtk_handle) + return 0; + + perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY); + if (perf_gtk_handle == NULL) { + char buf[PATH_MAX]; + scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO); + perf_gtk_handle = dlopen(buf, RTLD_LAZY); + } + if (perf_gtk_handle == NULL) + return -1; + + perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init"); + if (perf_ui_init == NULL) + goto out_close; + + if (perf_ui_init() == 0) + return 0; + +out_close: + dlclose(perf_gtk_handle); + return -1; +} + +static void exit_gtk_browser(bool wait_for_ok) +{ + void (*perf_ui_exit)(bool); + + if (perf_gtk_handle == NULL) + return; + + perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit"); + if (perf_ui_exit == NULL) + goto out_close; + + perf_ui_exit(wait_for_ok); + +out_close: + dlclose(perf_gtk_handle); + + perf_gtk_handle = NULL; +} +#else +static inline int setup_gtk_browser(void) { return -1; } +static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {} +#endif + +int stdio__config_color(const struct option *opt __maybe_unused, + const char *mode, int unset __maybe_unused) +{ + perf_use_color_default = perf_config_colorbool("color.ui", mode, -1); + return 0; +} + +void setup_browser(bool fallback_to_pager) +{ + mutex_init(&ui__lock); + if (use_browser < 2 && (!isatty(1) || dump_trace)) + use_browser = 0; + + /* default to TUI */ + if (use_browser < 0) + use_browser = 1; + + switch (use_browser) { + case 2: + if (setup_gtk_browser() == 0) + break; + printf("GTK browser requested but could not find %s\n", + PERF_GTK_DSO); + sleep(1); + use_browser = 1; + /* fall through */ + case 1: + if (ui__init() == 0) + break; + /* fall through */ + default: + use_browser = 0; + if (fallback_to_pager) + setup_pager(); + break; + } +} + +void exit_browser(bool wait_for_ok) +{ + switch (use_browser) { + case 2: + exit_gtk_browser(wait_for_ok); + break; + + case 1: + ui__exit(wait_for_ok); + break; + + default: + break; + } + mutex_destroy(&ui__lock); +} + +void pthread__block_sigwinch(void) +{ + sigset_t set; + + sigemptyset(&set); + sigaddset(&set, SIGWINCH); + pthread_sigmask(SIG_BLOCK, &set, NULL); +} + +void pthread__unblock_sigwinch(void) +{ + sigset_t set; + + sigemptyset(&set); + sigaddset(&set, SIGWINCH); + pthread_sigmask(SIG_UNBLOCK, &set, NULL); +} -- cgit v1.3.1