diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2014-09-11 16:07:02 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-03-28 07:05:03 +0100 |
| commit | 27ce094ddfb9bb68741e2d00191a1d825c552f7d (patch) | |
| tree | dbf35e7ec624eafbed7e85bcf1cbe3dc30518a63 /src/include | |
| parent | 441df53f838218484cd8b95ca7c62eefa35ed2c3 (diff) | |
drivers: add GIC support
The GIC is ARM's "Generic Interrupt Controller". This
change essentially implements the rudimentary support
for a GICv2 implementation that routes all interrupts
to Group1. This should also work for GICv1 with security
extensions.
BUG=chrome-os-partner:31945
BRANCH=None
TEST=Built and booted kernel using the code.
Change-Id: I9c9202c1309ca9e711e00d742085a6728552c54b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: d1cd9b6b76035af107b7dc876f90777698162d34
Original-Change-Id: I4c5b84bfe888ac33fa01c8d64a3dffe1b5ddc823
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/217512
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9075
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/gic.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/include/gic.h b/src/include/gic.h new file mode 100644 index 0000000000..22c5631473 --- /dev/null +++ b/src/include/gic.h @@ -0,0 +1,40 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef GIC_H +#define GIC_H + +#if IS_ENABLED(CONFIG_GIC) + +/* Initialize the GIC on the currently processor, including GICD and GICC. */ +void gic_init(void); + +/* Return a pointer to the base of the GIC distributor mmio region. */ +void *gicd_base(void); + +/* Return a pointer to the base of the GIC cpu mmio region. */ +void *gicc_base(void); + +#else /* CONFIG_GIC */ + +static inline void gic_init(void) {} + +#endif /* CONFIG_GIC */ + +#endif /* GIC_H */ |