Initial import of qemu-2.4.1HEADmaster

1 files changed, 68 insertions, 0 deletions

diff --git a/roms/qemu-palcode/pci.h b/roms/qemu-palcode/pci.h
new file mode 100644
index 00000000..b751c6f6
--- /dev/null
+++ b/roms/qemu-palcode/pci.h
@@ -0,0 +1,68 @@
+/* Simplistic PCI support.
+
+   Copyright (C) 2011 Richard Henderson
+
+   This file is part of QEMU PALcode.
+
+   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; either version 2 of the License or
+   (at your option) any later version.
+
+   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 text
+   of the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This header is intended to be compatible with the pci.h from SeaBIOS.
+   Their header, however, is too PC specific to be of use.  */
+
+#ifndef PCI_H
+#define PCI_H 1
+
+extern void *pci_conf_base;
+
+static inline void pci_config_writel(int bdf, uint8_t addr, uint32_t val)
+{
+  *(volatile uint32_t *)(pci_conf_base + bdf * 256 + addr) = val;
+}
+
+static inline void pci_config_writew(int bdf, uint8_t addr, uint16_t val)
+{
+  *(volatile uint16_t *)(pci_conf_base + bdf * 256 + addr) = val;
+}
+
+static inline void pci_config_writeb(int bdf, uint8_t addr, uint8_t val)
+{
+  *(volatile uint8_t *)(pci_conf_base + bdf * 256 + addr) = val;
+}
+
+static inline uint32_t pci_config_readl(int bdf, uint8_t addr)
+{
+  return *(volatile uint32_t *)(pci_conf_base + bdf * 256 + addr);
+}
+
+static inline uint16_t pci_config_readw(int bdf, uint8_t addr)
+{
+  return *(volatile uint16_t *)(pci_conf_base + bdf * 256 + addr);
+}
+
+static inline uint8_t pci_config_readb(int bdf, uint8_t addr)
+{
+  return *(volatile uint8_t *)(pci_conf_base + bdf * 256 + addr);
+}
+
+extern void pci_config_maskw(int bdf, int addr, uint16_t off, uint16_t on);
+
+extern int pci_next(int bdf, int *pmax);
+
+#define foreachpci(BDF, MAX)				\
+	for (MAX = 0x0100, BDF = pci_next(0, &MAX);	\
+	     BDF >= 0;					\
+	     BDF = pci_next(BDF+1, &MAX))
+
+#endif /* PCI_H */