nouveau-y += core/subdev/bios/fan.o
nouveau-y += core/subdev/bios/gpio.o
nouveau-y += core/subdev/bios/i2c.o
+nouveau-y += core/subdev/bios/image.o
nouveau-y += core/subdev/bios/init.o
nouveau-y += core/subdev/bios/mxm.o
nouveau-y += core/subdev/bios/perf.o
nouveau-y += core/subdev/bios/pll.o
nouveau-y += core/subdev/bios/ramcfg.o
nouveau-y += core/subdev/bios/rammap.o
+nouveau-y += core/subdev/bios/shadow.o
+nouveau-y += core/subdev/bios/shadowacpi.o
+nouveau-y += core/subdev/bios/shadowof.o
+nouveau-y += core/subdev/bios/shadowpci.o
+nouveau-y += core/subdev/bios/shadowramin.o
+nouveau-y += core/subdev/bios/shadowrom.o
nouveau-y += core/subdev/bios/timing.o
nouveau-y += core/subdev/bios/therm.o
nouveau-y += core/subdev/bios/vmap.o
--- /dev/null
+#ifndef __NVBIOS_IMAGE_H__
+#define __NVBIOS_IMAGE_H__
+
+struct nvbios_image {
+ u32 base;
+ u32 size;
+ u8 type;
+ bool last;
+};
+
+bool nvbios_image(struct nouveau_bios *, int, struct nvbios_image *);
+
+#endif
#include <subdev/bios/bmp.h>
#include <subdev/bios/bit.h>
+#include "priv.h"
+
u8
nvbios_checksum(const u8 *data, int size)
{
return 0;
}
-#if defined(__powerpc__)
-static void
-nouveau_bios_shadow_of(struct nouveau_bios *bios)
+int
+nvbios_extend(struct nouveau_bios *bios, u32 length)
{
- struct pci_dev *pdev = nv_device(bios)->pdev;
- struct device_node *dn;
- const u32 *data;
- int size;
-
- dn = pci_device_to_OF_node(pdev);
- if (!dn) {
- nv_info(bios, "Unable to get the OF node\n");
- return;
- }
-
- data = of_get_property(dn, "NVDA,BMP", &size);
- if (data && size) {
- bios->size = size;
- bios->data = kmalloc(bios->size, GFP_KERNEL);
- if (bios->data)
- memcpy(bios->data, data, size);
- }
-}
-#endif
-
-static void
-nouveau_bios_shadow_pramin(struct nouveau_bios *bios)
-{
- struct nouveau_device *device = nv_device(bios);
- u64 addr = 0;
- u32 bar0 = 0;
- int i;
-
- if (device->card_type >= NV_50) {
- if (device->card_type >= NV_C0 && device->card_type < GM100) {
- if (nv_rd32(bios, 0x022500) & 0x00000001)
- return;
- } else
- if (device->card_type >= GM100) {
- if (nv_rd32(bios, 0x021c04) & 0x00000001)
- return;
- }
-
- addr = nv_rd32(bios, 0x619f04);
- if (!(addr & 0x00000008)) {
- nv_debug(bios, "... not enabled\n");
- return;
+ if (bios->size < length) {
+ u8 *prev = bios->data;
+ if (!(bios->data = kmalloc(length, GFP_KERNEL))) {
+ bios->data = prev;
+ return -ENOMEM;
}
- if ( (addr & 0x00000003) != 1) {
- nv_debug(bios, "... not in vram\n");
- return;
- }
-
- addr = (addr & 0xffffff00) << 8;
- if (!addr) {
- addr = (u64)nv_rd32(bios, 0x001700) << 16;
- addr += 0xf0000;
- }
-
- bar0 = nv_mask(bios, 0x001700, 0xffffffff, addr >> 16);
- }
-
- /* bail if no rom signature */
- if (nv_rd08(bios, 0x700000) != 0x55 ||
- nv_rd08(bios, 0x700001) != 0xaa)
- goto out;
-
- bios->size = nv_rd08(bios, 0x700002) * 512;
- if (!bios->size)
- goto out;
-
- bios->data = kmalloc(bios->size, GFP_KERNEL);
- if (bios->data) {
- for (i = 0; i < bios->size; i++)
- nv_wo08(bios, i, nv_rd08(bios, 0x700000 + i));
- }
-
-out:
- if (device->card_type >= NV_50)
- nv_wr32(bios, 0x001700, bar0);
-}
-
-static void
-nouveau_bios_shadow_prom(struct nouveau_bios *bios)
-{
- struct nouveau_device *device = nv_device(bios);
- u32 pcireg, access;
- u16 pcir;
- int i;
-
- /* there is no prom on nv4x IGP's */
- if (device->card_type == NV_40 && device->chipset >= 0x4c)
- return;
-
- /* enable access to rom */
- if (device->card_type >= NV_50)
- pcireg = 0x088050;
- else
- pcireg = 0x001850;
- access = nv_mask(bios, pcireg, 0x00000001, 0x00000000);
-
- /* WARNING: PROM accesses should always be 32-bits aligned. Other
- * accesses work on most chipset but do not on Kepler chipsets
- */
-
- /* bail if no rom signature, with a workaround for a PROM reading
- * issue on some chipsets. the first read after a period of
- * inactivity returns the wrong result, so retry the first header
- * byte a few times before giving up as a workaround
- */
- i = 16;
- do {
- u32 data = le32_to_cpu(nv_rd32(bios, 0x300000)) & 0xffff;
- if (data == 0xaa55)
- break;
- } while (i--);
-
- if (!i)
- goto out;
-
- /* read entire bios image to system memory */
- bios->size = (le32_to_cpu(nv_rd32(bios, 0x300000)) >> 16) & 0xff;
- bios->size = bios->size * 512;
- if (!bios->size)
- goto out;
-
- bios->data = kmalloc(bios->size, GFP_KERNEL);
- if (!bios->data)
- goto out;
-
- for (i = 0; i < bios->size; i += 4)
- ((u32 *)bios->data)[i/4] = nv_rd32(bios, 0x300000 + i);
-
- /* check the PCI record header */
- pcir = nv_ro16(bios, 0x0018);
- if (bios->data[pcir + 0] != 'P' ||
- bios->data[pcir + 1] != 'C' ||
- bios->data[pcir + 2] != 'I' ||
- bios->data[pcir + 3] != 'R') {
- bios->size = 0;
- kfree(bios->data);
- }
-
-out:
- /* disable access to rom */
- nv_wr32(bios, pcireg, access);
-}
-
-#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
-
-static void
-nouveau_bios_shadow_acpi(struct nouveau_bios *bios)
-{
- struct pci_dev *pdev = nv_device(bios)->pdev;
- int ret, cnt, i;
-
- if (!nouveau_acpi_rom_supported(pdev)) {
- bios->data = NULL;
- return;
- }
-
- bios->size = 0;
- bios->data = kmalloc(4096, GFP_KERNEL);
- if (bios->data) {
- if (nouveau_acpi_get_bios_chunk(bios->data, 0, 4096) == 4096)
- bios->size = bios->data[2] * 512;
- kfree(bios->data);
+ memcpy(bios->data, prev, bios->size);
+ bios->size = length;
+ kfree(prev);
+ return 1;
}
-
- if (!bios->size)
- return;
-
- bios->data = kmalloc(bios->size, GFP_KERNEL);
- if (bios->data) {
- /* disobey the acpi spec - much faster on at least w530 ... */
- ret = nouveau_acpi_get_bios_chunk(bios->data, 0, bios->size);
- if (ret != bios->size ||
- nvbios_checksum(bios->data, bios->size)) {
- /* ... that didn't work, ok, i'll be good now */
- for (i = 0; i < bios->size; i += cnt) {
- cnt = min((bios->size - i), (u32)4096);
- ret = nouveau_acpi_get_bios_chunk(bios->data, i, cnt);
- if (ret != cnt)
- break;
- }
- }
- }
-}
-
-static void
-nouveau_bios_shadow_pci(struct nouveau_bios *bios)
-{
- struct pci_dev *pdev = nv_device(bios)->pdev;
- size_t size;
-
- if (!pci_enable_rom(pdev)) {
- void __iomem *rom = pci_map_rom(pdev, &size);
- if (rom && size) {
- bios->data = kmalloc(size, GFP_KERNEL);
- if (bios->data) {
- memcpy_fromio(bios->data, rom, size);
- bios->size = size;
- }
- }
- if (rom)
- pci_unmap_rom(pdev, rom);
-
- pci_disable_rom(pdev);
- }
-}
-
-static void
-nouveau_bios_shadow_platform(struct nouveau_bios *bios)
-{
- struct pci_dev *pdev = nv_device(bios)->pdev;
- size_t size;
-
- void __iomem *rom = pci_platform_rom(pdev, &size);
- if (rom && size) {
- bios->data = kmalloc(size, GFP_KERNEL);
- if (bios->data) {
- memcpy_fromio(bios->data, rom, size);
- bios->size = size;
- }
- }
-}
-
-static int
-nouveau_bios_score(struct nouveau_bios *bios, const bool writeable)
-{
- if (bios->size < 3 || !bios->data || bios->data[0] != 0x55 ||
- bios->data[1] != 0xAA) {
- nv_info(bios, "... signature not found\n");
- return 0;
- }
-
- if (nvbios_checksum(bios->data,
- min_t(u32, bios->data[2] * 512, bios->size))) {
- nv_info(bios, "... checksum invalid\n");
- /* if a ro image is somewhat bad, it's probably all rubbish */
- return writeable ? 2 : 1;
- }
-
- nv_info(bios, "... appears to be valid\n");
- return 3;
-}
-
-struct methods {
- const char desc[16];
- void (*shadow)(struct nouveau_bios *);
- const bool rw;
- int score;
- u32 size;
- u8 *data;
-};
-
-static int
-nouveau_bios_shadow(struct nouveau_bios *bios)
-{
- struct methods shadow_methods[] = {
-#if defined(__powerpc__)
- { "OpenFirmware", nouveau_bios_shadow_of, true, 0, 0, NULL },
-#endif
- { "PRAMIN", nouveau_bios_shadow_pramin, true, 0, 0, NULL },
- { "PROM", nouveau_bios_shadow_prom, false, 0, 0, NULL },
- { "ACPI", nouveau_bios_shadow_acpi, true, 0, 0, NULL },
- { "PCIROM", nouveau_bios_shadow_pci, true, 0, 0, NULL },
- { "PLATFORM", nouveau_bios_shadow_platform, true, 0, 0, NULL },
- {}
- };
- struct methods *mthd, *best;
- const struct firmware *fw;
- const char *optarg;
- int optlen, ret;
- char *source;
-
- optarg = nouveau_stropt(nv_device(bios)->cfgopt, "NvBios", &optlen);
- source = optarg ? kstrndup(optarg, optlen, GFP_KERNEL) : NULL;
- if (source) {
- /* try to match one of the built-in methods */
- mthd = shadow_methods;
- do {
- if (strcasecmp(source, mthd->desc))
- continue;
- nv_info(bios, "source: %s\n", mthd->desc);
-
- mthd->shadow(bios);
- mthd->score = nouveau_bios_score(bios, mthd->rw);
- if (mthd->score) {
- kfree(source);
- return 0;
- }
- } while ((++mthd)->shadow);
-
- /* attempt to load firmware image */
- ret = request_firmware(&fw, source, &nv_device(bios)->pdev->dev);
- if (ret == 0) {
- bios->size = fw->size;
- bios->data = kmemdup(fw->data, fw->size, GFP_KERNEL);
- release_firmware(fw);
-
- nv_info(bios, "image: %s\n", source);
- if (nouveau_bios_score(bios, 1)) {
- kfree(source);
- return 0;
- }
-
- kfree(bios->data);
- bios->data = NULL;
- }
-
- nv_error(bios, "source \'%s\' invalid\n", source);
- kfree(source);
- }
-
- mthd = shadow_methods;
- do {
- nv_info(bios, "checking %s for image...\n", mthd->desc);
- mthd->shadow(bios);
- mthd->score = nouveau_bios_score(bios, mthd->rw);
- mthd->size = bios->size;
- mthd->data = bios->data;
- bios->data = NULL;
- } while (mthd->score != 3 && (++mthd)->shadow);
-
- mthd = shadow_methods;
- best = mthd;
- do {
- if (mthd->score > best->score) {
- kfree(best->data);
- best = mthd;
- }
- } while ((++mthd)->shadow);
-
- if (best->score) {
- nv_info(bios, "using image from %s\n", best->desc);
- bios->size = best->size;
- bios->data = best->data;
- return 0;
- }
-
- nv_error(bios, "unable to locate usable image\n");
- return -EINVAL;
+ return 0;
}
static u8
if (ret)
return ret;
- ret = nouveau_bios_shadow(bios);
+ ret = nvbios_shadow(bios);
if (ret)
return ret;
--- /dev/null
+/*
+ * Copyright 2014 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.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+
+#include <subdev/bios.h>
+#include <subdev/bios/image.h>
+
+static bool
+nvbios_imagen(struct nouveau_bios *bios, struct nvbios_image *image)
+{
+ u32 data;
+
+ switch ((data = nv_ro16(bios, image->base + 0x00))) {
+ case 0xaa55:
+ break;
+ default:
+ nv_debug(bios, "%08x: ROM signature (%04x) unknown\n",
+ image->base, data);
+ return false;
+ }
+
+ image->size = nv_ro08(bios, image->base + 0x02) * 512;
+ image->type = 0x00;
+ image->last = true;
+ return true;
+}
+
+bool
+nvbios_image(struct nouveau_bios *bios, int idx, struct nvbios_image *image)
+{
+ memset(image, 0x00, sizeof(*image));
+ if (idx)
+ return false;
+ return nvbios_imagen(bios, image);
+}
--- /dev/null
+#ifndef __NVKM_BIOS_PRIV_H__
+#define __NVKM_BIOS_PRIV_H__
+
+#include <subdev/bios.h>
+
+struct nvbios_source {
+ const char *name;
+ void *(*init)(struct nouveau_bios *, const char *);
+ void (*fini)(void *);
+ u32 (*read)(void *, u32 offset, u32 length, struct nouveau_bios *);
+ bool rw;
+};
+
+int nvbios_extend(struct nouveau_bios *, u32 length);
+int nvbios_shadow(struct nouveau_bios *);
+
+extern const struct nvbios_source nvbios_rom;
+extern const struct nvbios_source nvbios_ramin;
+extern const struct nvbios_source nvbios_acpi_fast;
+extern const struct nvbios_source nvbios_acpi_slow;
+extern const struct nvbios_source nvbios_pcirom;
+extern const struct nvbios_source nvbios_platform;
+extern const struct nvbios_source nvbios_of;
+
+#endif
--- /dev/null
+/*
+ * Copyright 2014 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.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+
+#include "priv.h"
+#include <core/option.h>
+#include <subdev/bios/image.h>
+
+struct shadow {
+ struct nouveau_oclass base;
+ u32 skip;
+ const struct nvbios_source *func;
+ void *data;
+ u32 size;
+ int score;
+};
+
+static bool
+shadow_fetch(struct nouveau_bios *bios, u32 upto)
+{
+ struct shadow *mthd = (void *)nv_object(bios)->oclass;
+ const u32 limit = (upto + 3) & ~3;
+ const u32 start = bios->size;
+ void *data = mthd->data;
+ if (nvbios_extend(bios, limit) > 0) {
+ u32 read = mthd->func->read(data, start, limit - start, bios);
+ bios->size = start + read;
+ }
+ return bios->size >= limit;
+}
+
+static u8
+shadow_rd08(struct nouveau_object *object, u64 addr)
+{
+ struct nouveau_bios *bios = (void *)object;
+ if (shadow_fetch(bios, addr + 1))
+ return bios->data[addr];
+ return 0x00;
+}
+
+static u16
+shadow_rd16(struct nouveau_object *object, u64 addr)
+{
+ struct nouveau_bios *bios = (void *)object;
+ if (shadow_fetch(bios, addr + 2))
+ return get_unaligned_le16(&bios->data[addr]);
+ return 0x0000;
+}
+
+static u32
+shadow_rd32(struct nouveau_object *object, u64 addr)
+{
+ struct nouveau_bios *bios = (void *)object;
+ if (shadow_fetch(bios, addr + 4))
+ return get_unaligned_le32(&bios->data[addr]);
+ return 0x00000000;
+}
+
+static struct nouveau_oclass
+shadow_class = {
+ .handle = NV_SUBDEV(VBIOS, 0x00),
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .rd08 = shadow_rd08,
+ .rd16 = shadow_rd16,
+ .rd32 = shadow_rd32,
+ },
+};
+
+static int
+shadow_image(struct nouveau_bios *bios, int idx, struct shadow *mthd)
+{
+ struct nvbios_image image;
+ int score = 1;
+
+ if (!nvbios_image(bios, idx, &image)) {
+ nv_debug(bios, "image %d invalid\n", idx);
+ return 0;
+ }
+ nv_debug(bios, "%08x: type %02x, %d bytes\n",
+ image.base, image.type, image.size);
+
+ if (!shadow_fetch(bios, image.size)) {
+ nv_debug(bios, "%08x: fetch failed\n", image.base);
+ return 0;
+ }
+
+ switch (image.type) {
+ case 0x00:
+ if (nvbios_checksum(&bios->data[image.base], image.size)) {
+ nv_debug(bios, "%08x: checksum failed\n", image.base);
+ if (mthd->func->rw)
+ score += 1;
+ score += 1;
+ } else {
+ score += 3;
+ }
+ break;
+ default:
+ score += 3;
+ break;
+ }
+
+ if (!image.last)
+ score += shadow_image(bios, idx + 1, mthd);
+ return score;
+}
+
+static int
+shadow_score(struct nouveau_bios *bios, struct shadow *mthd)
+{
+ struct nouveau_oclass *oclass = nv_object(bios)->oclass;
+ int score;
+ nv_object(bios)->oclass = &mthd->base;
+ score = shadow_image(bios, 0, mthd);
+ nv_object(bios)->oclass = oclass;
+ return score;
+
+}
+
+static int
+shadow_method(struct nouveau_bios *bios, struct shadow *mthd, const char *name)
+{
+ const struct nvbios_source *func = mthd->func;
+ if (func->name) {
+ nv_debug(bios, "trying %s...\n", name ? name : func->name);
+ if (func->init) {
+ mthd->data = func->init(bios, name);
+ if (IS_ERR(mthd->data)) {
+ mthd->data = NULL;
+ return 0;
+ }
+ }
+ mthd->score = shadow_score(bios, mthd);
+ if (func->fini)
+ func->fini(mthd->data);
+ nv_debug(bios, "scored %d\n", mthd->score);
+ mthd->data = bios->data;
+ mthd->size = bios->size;
+ bios->data = NULL;
+ bios->size = 0;
+ }
+ return mthd->score;
+}
+
+static u32
+shadow_fw_read(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
+{
+ const struct firmware *fw = data;
+ if (offset + length <= fw->size) {
+ memcpy(bios->data + offset, fw->data + offset, length);
+ return length;
+ }
+ return 0;
+}
+
+static void *
+shadow_fw_init(struct nouveau_bios *bios, const char *name)
+{
+ struct device *dev = &nv_device(bios)->pdev->dev;
+ const struct firmware *fw;
+ int ret = request_firmware(&fw, name, dev);
+ if (ret)
+ return ERR_PTR(-ENOENT);
+ return (void *)fw;
+}
+
+static const struct nvbios_source
+shadow_fw = {
+ .name = "firmware",
+ .init = shadow_fw_init,
+ .fini = (void(*)(void *))release_firmware,
+ .read = shadow_fw_read,
+ .rw = false,
+};
+
+int
+nvbios_shadow(struct nouveau_bios *bios)
+{
+ struct shadow mthds[] = {
+ { shadow_class, 0, &nvbios_of },
+ { shadow_class, 0, &nvbios_ramin },
+ { shadow_class, 0, &nvbios_rom },
+ { shadow_class, 0, &nvbios_acpi_fast },
+ { shadow_class, 4, &nvbios_acpi_slow },
+ { shadow_class, 1, &nvbios_pcirom },
+ { shadow_class, 1, &nvbios_platform },
+ { shadow_class }
+ }, *mthd = mthds, *best = NULL;
+ const char *optarg;
+ char *source;
+ int optlen;
+
+ /* handle user-specified bios source */
+ optarg = nouveau_stropt(nv_device(bios)->cfgopt, "NvBios", &optlen);
+ source = optarg ? kstrndup(optarg, optlen, GFP_KERNEL) : NULL;
+ if (source) {
+ /* try to match one of the built-in methods */
+ for (mthd = mthds; mthd->func; mthd++) {
+ if (mthd->func->name &&
+ !strcasecmp(source, mthd->func->name)) {
+ best = mthd;
+ if (shadow_method(bios, mthd, NULL))
+ break;
+ }
+ }
+
+ /* otherwise, attempt to load as firmware */
+ if (!best && (best = mthd)) {
+ mthd->func = &shadow_fw;
+ shadow_method(bios, mthd, source);
+ mthd->func = NULL;
+ }
+
+ if (!best->score) {
+ nv_error(bios, "%s invalid\n", source);
+ kfree(source);
+ source = NULL;
+ }
+ }
+
+ /* scan all potential bios sources, looking for best image */
+ if (!best || !best->score) {
+ for (mthd = mthds, best = mthd; mthd->func; mthd++) {
+ if (!mthd->skip || best->score < mthd->skip) {
+ if (shadow_method(bios, mthd, NULL)) {
+ if (mthd->score > best->score)
+ best = mthd;
+ }
+ }
+ }
+ }
+
+ /* cleanup the ones we didn't use */
+ for (mthd = mthds; mthd->func; mthd++) {
+ if (mthd != best)
+ kfree(mthd->data);
+ }
+
+ if (!best->score) {
+ nv_fatal(bios, "unable to locate usable image\n");
+ return -EINVAL;
+ }
+
+ nv_info(bios, "using image from %s\n", best->func ?
+ best->func->name : source);
+ bios->data = best->data;
+ bios->size = best->size;
+ kfree(source);
+ return 0;
+}
--- /dev/null
+/*
+ * 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,
+};
--- /dev/null
+/*
+ * 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(__powerpc__)
+struct priv {
+ const void __iomem *data;
+ int size;
+};
+
+static u32
+of_read(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
+{
+ struct priv *priv = data;
+ if (offset + length <= priv->size) {
+ memcpy_fromio(bios->data + offset, priv->data + offset, length);
+ return length;
+ }
+ return 0;
+}
+
+static void *
+of_init(struct nouveau_bios *bios, const char *name)
+{
+ struct pci_dev *pdev = nv_device(bios)->pdev;
+ struct device_node *dn;
+ struct priv *priv;
+ if (!(dn = pci_device_to_OF_node(pdev)))
+ return ERR_PTR(-ENODEV);
+ if (!(priv = kzalloc(sizeof(*priv), GFP_KERNEL)))
+ return ERR_PTR(-ENOMEM);
+ if ((priv->data = of_get_property(dn, "NVDA,BMP", &priv->size)))
+ return priv;
+ kfree(priv);
+ return ERR_PTR(-EINVAL);
+}
+
+const struct nvbios_source
+nvbios_of = {
+ .name = "OpenFirmware",
+ .init = of_init,
+ .fini = (void(*)(void *))kfree,
+ .read = of_read,
+ .rw = false,
+};
+#else
+const struct nvbios_source
+nvbios_of = {
+};
+#endif
--- /dev/null
+/*
+ * 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"
+
+struct priv {
+ struct pci_dev *pdev;
+ void __iomem *rom;
+ size_t size;
+};
+
+static u32
+pcirom_read(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
+{
+ struct priv *priv = data;
+ if (offset + length <= priv->size) {
+ memcpy_fromio(bios->data + offset, priv->rom + offset, length);
+ return length;
+ }
+ return 0;
+}
+
+static void
+pcirom_fini(void *data)
+{
+ struct priv *priv = data;
+ pci_unmap_rom(priv->pdev, priv->rom);
+ pci_disable_rom(priv->pdev);
+ kfree(priv);
+}
+
+static void *
+pcirom_init(struct nouveau_bios *bios, const char *name)
+{
+ struct pci_dev *pdev = nv_device(bios)->pdev;
+ struct priv *priv = NULL;
+ int ret;
+
+ if (!(ret = pci_enable_rom(pdev))) {
+ if (ret = -ENOMEM,
+ (priv = kmalloc(sizeof(*priv), GFP_KERNEL))) {
+ if (ret = -EFAULT,
+ (priv->rom = pci_map_rom(pdev, &priv->size))) {
+ priv->pdev = pdev;
+ return priv;
+ }
+ kfree(priv);
+ }
+ pci_disable_rom(pdev);
+ }
+
+ return ERR_PTR(ret);
+}
+
+const struct nvbios_source
+nvbios_pcirom = {
+ .name = "PCIROM",
+ .init = pcirom_init,
+ .fini = pcirom_fini,
+ .read = pcirom_read,
+ .rw = true,
+};
+
+static void *
+platform_init(struct nouveau_bios *bios, const char *name)
+{
+ struct pci_dev *pdev = nv_device(bios)->pdev;
+ struct priv *priv;
+ int ret = -ENOMEM;
+
+ if ((priv = kmalloc(sizeof(*priv), GFP_KERNEL))) {
+ if (ret = -ENODEV,
+ (priv->rom = pci_platform_rom(pdev, &priv->size)))
+ return priv;
+ kfree(priv);
+ }
+
+ return ERR_PTR(ret);
+}
+
+const struct nvbios_source
+nvbios_platform = {
+ .name = "PLATFORM",
+ .init = platform_init,
+ .fini = (void(*)(void *))kfree,
+ .read = pcirom_read,
+ .rw = true,
+};
--- /dev/null
+/*
+ * 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"
+
+struct priv {
+ struct nouveau_bios *bios;
+ u32 bar0;
+};
+
+static u32
+pramin_read(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
+{
+ u32 i;
+ if (offset + length <= 0x00100000) {
+ for (i = offset; i < offset + length; i += 4)
+ *(u32 *)&bios->data[i] = nv_rd32(bios, 0x700000 + i);
+ return length;
+ }
+ return 0;
+}
+
+static void
+pramin_fini(void *data)
+{
+ struct priv *priv = data;
+ nv_wr32(priv->bios, 0x001700, priv->bar0);
+ kfree(priv);
+}
+
+static void *
+pramin_init(struct nouveau_bios *bios, const char *name)
+{
+ struct priv *priv = NULL;
+ u64 addr = 0;
+
+ /* PRAMIN always potentially available prior to nv50 */
+ if (nv_device(bios)->card_type < NV_50)
+ return NULL;
+
+ /* we can't get the bios image pointer without PDISP */
+ if (nv_device(bios)->card_type >= GM100)
+ addr = nv_rd32(bios, 0x021c04);
+ else
+ if (nv_device(bios)->card_type >= NV_C0)
+ addr = nv_rd32(bios, 0x022500);
+ if (addr & 0x00000001) {
+ nv_debug(bios, "... display disabled\n");
+ return ERR_PTR(-ENODEV);
+ }
+
+ /* check that the window is enabled and in vram, particularly
+ * important as we don't want to be touching vram on an
+ * uninitialised board
+ */
+ addr = nv_rd32(bios, 0x619f04);
+ if (!(addr & 0x00000008)) {
+ nv_debug(bios, "... not enabled\n");
+ return ERR_PTR(-ENODEV);
+ }
+ if ( (addr & 0x00000003) != 1) {
+ nv_debug(bios, "... not in vram\n");
+ return ERR_PTR(-ENODEV);
+ }
+
+ /* some alternate method inherited from xf86-video-nv... */
+ addr = (addr & 0xffffff00) << 8;
+ if (!addr) {
+ addr = (u64)nv_rd32(bios, 0x001700) << 16;
+ addr += 0xf0000;
+ }
+
+ /* modify bar0 PRAMIN window to cover the bios image */
+ if (!(priv = kmalloc(sizeof(*priv), GFP_KERNEL))) {
+ nv_error(bios, "... out of memory\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ priv->bios = bios;
+ priv->bar0 = nv_rd32(bios, 0x001700);
+ nv_wr32(bios, 0x001700, addr >> 16);
+ return priv;
+}
+
+const struct nvbios_source
+nvbios_ramin = {
+ .name = "PRAMIN",
+ .init = pramin_init,
+ .fini = pramin_fini,
+ .read = pramin_read,
+ .rw = true,
+};
--- /dev/null
+/*
+ * 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"
+
+static u32
+prom_read(void *data, u32 offset, u32 length, struct nouveau_bios *bios)
+{
+ u32 i;
+ if (offset + length <= 0x00100000) {
+ for (i = offset; i < offset + length; i += 4)
+ *(u32 *)&bios->data[i] = nv_rd32(bios, 0x300000 + i);
+ return length;
+ }
+ return 0;
+}
+
+static void
+prom_fini(void *data)
+{
+ struct nouveau_bios *bios = data;
+ if (nv_device(bios)->card_type < NV_50)
+ nv_mask(bios, 0x001850, 0x00000001, 0x00000001);
+ else
+ nv_mask(bios, 0x088050, 0x00000001, 0x00000001);
+}
+
+static void *
+prom_init(struct nouveau_bios *bios, const char *name)
+{
+ if (nv_device(bios)->card_type < NV_50) {
+ if (nv_device(bios)->card_type == NV_40 &&
+ nv_device(bios)->chipset >= 0x4c)
+ return ERR_PTR(-ENODEV);
+ nv_mask(bios, 0x001850, 0x00000001, 0x00000000);
+ } else {
+ nv_mask(bios, 0x088050, 0x00000001, 0x00000000);
+ }
+ return bios;
+}
+
+const struct nvbios_source
+nvbios_rom = {
+ .name = "PROM",
+ .init = prom_init,
+ .fini = prom_fini,
+ .read = prom_read,
+ .rw = false,
+};
projects / openwrt / staging / blogic.git / commitdiff