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Diffstat (limited to 'nvkm/subdev/bios/shadowacpi.c')
-rw-r--r--nvkm/subdev/bios/shadowacpi.c111
1 files changed, 0 insertions, 111 deletions
diff --git a/nvkm/subdev/bios/shadowacpi.c b/nvkm/subdev/bios/shadowacpi.c
deleted file mode 100644
index bc130c12e..000000000
--- a/nvkm/subdev/bios/shadowacpi.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright 2012 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#include "priv.h"
-
-#if defined(CONFIG_ACPI) && defined(CONFIG_X86)
-int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len);
-bool nouveau_acpi_rom_supported(struct pci_dev *pdev);
-#else
-static inline bool
-nouveau_acpi_rom_supported(struct pci_dev *pdev)
-{
- return false;
-}
-
-static inline int
-nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len)
-{
- return -EINVAL;
-}
-#endif
-
-/* This version of the shadow function disobeys the ACPI spec and tries
- * to fetch in units of more than 4KiB at a time. This is a LOT faster
- * on some systems, such as Lenovo W530.
- */
-static u32
-acpi_read_fast(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
-{
- u32 limit = (offset + length + 0xfff) & ~0xfff;
- u32 start = offset & ~0x00000fff;
- u32 fetch = limit - start;
-
- if (nvbios_extend(bios, limit) > 0) {
- int ret = nouveau_acpi_get_bios_chunk(bios->data, start, fetch);
- if (ret == fetch)
- return fetch;
- }
-
- return 0;
-}
-
-/* Other systems, such as the one in fdo#55948, will report a success
- * but only return 4KiB of data. The common bios fetching logic will
- * detect an invalid image, and fall back to this version of the read
- * function.
- */
-static u32
-acpi_read_slow(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
-{
- u32 limit = (offset + length + 0xfff) & ~0xfff;
- u32 start = offset & ~0xfff;
- u32 fetch = 0;
-
- if (nvbios_extend(bios, limit) > 0) {
- while (start + fetch < limit) {
- int ret = nouveau_acpi_get_bios_chunk(bios->data,
- start + fetch,
- 0x1000);
- if (ret != 0x1000)
- break;
- fetch += 0x1000;
- }
- }
-
- return fetch;
-}
-
-static void *
-acpi_init(struct nouveau_bios *bios, const char *name)
-{
- if (!nouveau_acpi_rom_supported(nv_device(bios)->pdev))
- return ERR_PTR(-ENODEV);
- return NULL;
-}
-
-const struct nvbios_source
-nvbios_acpi_fast = {
- .name = "ACPI",
- .init = acpi_init,
- .read = acpi_read_fast,
- .rw = false,
-};
-
-const struct nvbios_source
-nvbios_acpi_slow = {
- .name = "ACPI",
- .init = acpi_init,
- .read = acpi_read_slow,
- .rw = false,
-};