Alexandre Courbot
2014-Feb-11 06:18 UTC
[Nouveau] [PATCH] drm/nouveau: support for platform devices
On Mon, Feb 10, 2014 at 8:50 PM, Thierry Reding <thierry.reding at gmail.com> wrote:> On Mon, Feb 10, 2014 at 02:53:00PM +0900, Alexandre Courbot wrote: > [...] >> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/base.c b/drivers/gpu/drm/nouveau/core/engine/device/base.c > [...] >> +resource_size_t >> +nv_device_resource_start(struct nouveau_device *device, unsigned int bar) >> +{ >> + if (nv_device_is_pci(device)) { >> + return pci_resource_start(device->pdev, bar); >> + } else { >> + struct resource *res; >> + res = platform_get_resource(device->platformdev, >> + IORESOURCE_MEM, bar); >> + if (!res) >> + return 0; >> + return res->start; >> + } >> +} >> + >> +resource_size_t >> +nv_device_resource_len(struct nouveau_device *device, unsigned int bar) >> +{ >> + if (nv_device_is_pci(device)) { >> + return pci_resource_len(device->pdev, bar); >> + } else { >> + struct resource *res; >> + res = platform_get_resource(device->platformdev, >> + IORESOURCE_MEM, bar); >> + if (!res) >> + return 0; >> + return resource_size(res); >> + } >> +} > > Perhaps instead of these two, something like this could be done: > > const struct resource * > nv_device_resource(struct nouveau_device *device, unsigned int bar) > { > if (nv_device_is_pci(device) > return &device->pdev->resource[bar]; > else > return platform_get_resource(device->platformdev, > IORESOURCE_MEM, bar); > } > > Then the more generic resource_size() can be used directly on the > returned struct resource *. Doing so may come in handy if you ever need > to display the resource for debugging purposes, since you could simply > use the %pR format specifier. It could also be slightly more efficient, > since the structure doesn't have to be looked up twice. But perhaps the > compiler will be clever enough to optimize that away and it's not like > this is called from a hot path.I would agree with returning raw resource * if some of the consumer code did make use of struct resource * directly, but AFAICT this is not the case at all. So I thought we would better continue providing exactly what the code needs, instead of forcing it to dererence the resource itself. Also by doing so we might return NULL pointers in some code paths that do not check whether a resource is valid or not (granted, returning 0 would probably only make the code crash later).> > I do see that pci_resource_len() does additional checking for BARs that > have zero size (start == 0 && end == start), so it's not exactly the > same, but I think there's another issue with that, see below. > >> +int >> +nouveau_device_platform_create_(struct platform_device *pdev, u64 name, >> + const char *sname, const char *cfg, >> + const char *dbg, int length, void **pobject) >> +{ >> + struct nouveau_device *device; >> + int ret = -EEXIST; >> + >> + mutex_lock(&nv_devices_mutex); >> + list_for_each_entry(device, &nv_devices, head) { >> + if (device->handle == name) >> + goto done; >> + } >> + >> + ret = nouveau_engine_create_(NULL, NULL, &nouveau_device_oclass, true, >> + "DEVICE", "device", length, pobject); >> + device = *pobject; >> + if (ret) >> + goto done; >> + >> + device->platformdev = pdev; >> + device->handle = name; >> + device->cfgopt = cfg; >> + device->dbgopt = dbg; >> + device->name = sname; >> + >> + nv_subdev(device)->debug = nouveau_dbgopt(device->dbgopt, "DEVICE"); >> + nv_engine(device)->sclass = nouveau_device_sclass; >> + list_add(&device->head, &nv_devices); >> +done: >> + mutex_unlock(&nv_devices_mutex); >> + return ret; >> +} > > I think there's some potential for refactoring here, since the only > difference that I can spot is in whether the pdev or the platformdev > fields are assigned.That's true. Actually I wonder if it would not make more sense for nouveau_device_platform_create_() to take a void pointer and a type saying whether the device is PCI or platform, otherwise we will end up duplicating the mutex code in two functions, ending up with even more code than my current version.> >> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c >> index b24559315903..d145e080899a 100644 >> --- a/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c >> +++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c >> @@ -349,7 +349,7 @@ nv20_graph_init(struct nouveau_object *object) >> nv_wr32(priv, NV10_PGRAPH_SURFACE, tmp); >> >> /* begin RAM config */ >> - vramsz = pci_resource_len(nv_device(priv)->pdev, 0) - 1; >> + vramsz = nv_device_resource_len(nv_device(priv), 0) - 1; > > In case BAR0 is of size zero (start == 0, end == start), this will cause > underflow in the case of a PCI device, because pci_resource_len() will > return 0. I suspect that this never happens since that code's been there > since the dawn of time.Yes, I guess for particular chips it is ok to make assumptions such as the presence of a given BAR that are, anyway, properties inherent to that chip.>> diff --git a/drivers/gpu/drm/nouveau/core/include/core/device.h b/drivers/gpu/drm/nouveau/core/include/core/device.h >> index 7b8ea221b00d..2a3e24e1d392 100644 >> --- a/drivers/gpu/drm/nouveau/core/include/core/device.h >> +++ b/drivers/gpu/drm/nouveau/core/include/core/device.h >> @@ -65,6 +65,7 @@ struct nouveau_device { >> struct list_head head; >> >> struct pci_dev *pdev; >> + struct platform_device *platformdev; > > I'm generally wondering if perhaps a better abstraction would be to > store a struct device * here, perhaps with a struct nouveau_device_ops * > or similar to abstract away the differences between PCI and platform > devices. > > nouveau_device_create_() could then take a struct device * and a struct > nouveau_device_ops *, and upcasting can therefore be done within these > operations, rather than sprinkling nv_device_is_pci() code everywhere.At some point I was considering having the bus abstracted as a subdev, but that sounded overkill. :) A nouveau_device_ops * would provide a nicer abstraction, but at the end of the day we would still be calling accessor functions on a nouveau_device * and this would not change much for consumer code. It would also deprive PCI-dependent code (there is still a bunch) of a convenient way to access the pci_dev * since it would need to be upcasted. And the only place where this would remove nv_device_is_pci() is device/base.c. IMHO the current situation is still sustainable for two buses. If we had three or more, I'd go for the nouveau_device_ops * solution though.> >> diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c > [...] >> case NOUVEAU_GETPARAM_BUS_TYPE: >> + if (!nv_device_is_pci(device)) >> + getparam->value = 3; >> + else >> if (drm_pci_device_is_agp(dev)) >> getparam->value = 0; >> else > > This is more of a general note since this patch doesn't introduce the > parameter. Perhaps it would be good to expose a symbolic name for the > various types of busses in a public header?Maybe as a separate patch, yes. Also the value of "3" for non-PCI devices is completely arbitrary.> >> diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c >> index cc5152be2cf1..19c6e6c9fc45 100644 >> --- a/drivers/gpu/drm/nouveau/nouveau_chan.c >> +++ b/drivers/gpu/drm/nouveau/nouveau_chan.c >> @@ -154,7 +154,7 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nouveau_cli *cli, >> * nfi why this exists, it came from the -nv ddx. >> */ >> args.flags = NV_DMA_TARGET_PCI | NV_DMA_ACCESS_RDWR; >> - args.start = pci_resource_start(device->pdev, 1); >> + args.start = nv_device_resource_len(device, 1); > > Should this have been nv_device_resource_start()?Absolutely. Thanks.> >> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c > [...] >> @@ -345,7 +368,7 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags) >> /* make sure AGP controller is in a consistent state before we >> * (possibly) execute vbios init tables (see nouveau_agp.h) >> */ >> - if (drm_pci_device_is_agp(dev) && dev->agp) { >> + if (pdev && drm_pci_device_is_agp(dev) && dev->agp) { > > Perhaps move the check for valid PCI device into drm_pci_device_is_agp() > rather than requiring callers to check explicitly?I *think* drm_pci_device_is_agp() assumes a PCI device on purpose and that the burden of checking is on the caller. Changing this behavior would imply doing the same on many other functions of drmP.h.> >> @@ -384,8 +407,10 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags) >> if (nv_device(drm->device)->chipset == 0xc1) >> nv_mask(device, 0x00088080, 0x00000800, 0x00000000); >> >> - nouveau_vga_init(drm); >> - nouveau_agp_init(drm); >> + if (pdev) { >> + nouveau_vga_init(drm); >> + nouveau_agp_init(drm); >> + } > > Same here. And if you make the above change, then nouveau_agp_init() > will do the right thing already.Indeed, we can probably check drm_device::pdev in the functions themselves.> >> if (device->card_type >= NV_50) { >> ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40), >> @@ -398,9 +423,11 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags) >> if (ret) >> goto fail_ttm; >> >> - ret = nouveau_bios_init(dev); >> - if (ret) >> - goto fail_bios; >> + if (pdev) { >> + ret = nouveau_bios_init(dev); >> + if (ret) >> + goto fail_bios; >> + } > > nouveau_bios_init() could also check internally and return 0 if the > device isn't a PCI device. One less conditional in this function.Agreed.> >> @@ -963,6 +991,25 @@ nouveau_drm_pci_driver = { >> .driver.pm = &nouveau_pm_ops, >> }; >> >> + > > This adds a spurious newline.Removed.> >> +int nouveau_drm_platform_probe(struct platform_device *pdev) >> +{ >> + struct nouveau_device *device; >> + int ret; >> + >> + ret = nouveau_device_platform_create(pdev, nouveau_platform_name(pdev), >> + dev_name(&pdev->dev), nouveau_config, >> + nouveau_debug, &device); >> + >> + ret = drm_platform_init(&driver, pdev); >> + if (ret) { >> + nouveau_object_ref(NULL, (struct nouveau_object **)&device); >> + return ret; >> + } >> + >> + return ret; >> +} > > I think we should move the whole of gk20a probing into nouveau. Keeping > one part in tegra-drm and one part in nouveau is confusing, and I can't > see a reason why we'd have to keep it that way.Yes, the current probing scheme is definitely not what we want. However since some clocks probably need to be enabled before GK20A's registers (including BOOT0) can be read, this will probably require some more changes which we need to think about, and is not directly within the scope of this patch. Thanks for the review! I will post a v2 tomorrow. Alex.
Alexandre Courbot
2014-Feb-12 05:38 UTC
[Nouveau] [PATCH v2] drm/nouveau: support for platform devices
Upcoming mobile Kepler GPUs (such as GK20A) use the platform bus instead
of PCI to which Nouveau is tightly dependent. This patch allows Nouveau
to handle platform devices by:
- abstracting PCI-dependent functions that were typically used for
resource querying and page mapping,
- introducing a nv_device_is_pci() function that allows to make
PCI-dependent code conditional,
- providing a nouveau_drm_platform_probe() function that takes a GPU
platform device to be probed.
Core code as well as engine/subdev drivers are updated wherever possible
to make use of these functions. Some older drivers are too dependent on
PCI to be properly updated, but all newer code on which future chips may
depend should at least be runnable with platform devices.
Signed-off-by: Alexandre Courbot <acourbot at nvidia.com>
---
Changes since v1:
- Refactored nouveau_device_create_() to take an additional bus type
argument instead of having two versions of it that duplicate code.
- Fixed a typo when substituting pci_resource_* with nv_device_resource_*
- Check whether devices are PCI in relevant functions instead of
nouveau_drm_load().
drivers/gpu/drm/nouveau/core/engine/device/base.c | 83 ++++++++++++++++++++--
drivers/gpu/drm/nouveau/core/engine/falcon.c | 6 +-
drivers/gpu/drm/nouveau/core/engine/fifo/base.c | 2 +-
drivers/gpu/drm/nouveau/core/engine/graph/nv20.c | 2 +-
drivers/gpu/drm/nouveau/core/engine/graph/nv40.c | 2 +-
drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 4 +-
drivers/gpu/drm/nouveau/core/engine/xtensa.c | 2 +-
drivers/gpu/drm/nouveau/core/include/core/device.h | 30 ++++++++
.../gpu/drm/nouveau/core/include/engine/device.h | 17 +++--
drivers/gpu/drm/nouveau/core/include/subdev/mc.h | 1 +
drivers/gpu/drm/nouveau/core/os.h | 1 +
drivers/gpu/drm/nouveau/core/subdev/bar/base.c | 4 +-
drivers/gpu/drm/nouveau/core/subdev/bar/nv50.c | 4 +-
drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c | 15 ++--
.../gpu/drm/nouveau/core/subdev/devinit/fbmem.h | 8 ++-
drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c | 2 +-
drivers/gpu/drm/nouveau/core/subdev/devinit/nv05.c | 2 +-
drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c | 2 +-
drivers/gpu/drm/nouveau/core/subdev/devinit/nv20.c | 2 +-
drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c | 9 +--
drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c | 9 +--
drivers/gpu/drm/nouveau/core/subdev/i2c/base.c | 2 +-
drivers/gpu/drm/nouveau/core/subdev/instmem/nv40.c | 7 +-
drivers/gpu/drm/nouveau/core/subdev/mc/base.c | 39 ++++++----
drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_abi16.c | 13 +++-
drivers/gpu/drm/nouveau/nouveau_agp.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_bios.c | 4 ++
drivers/gpu/drm/nouveau/nouveau_bo.c | 22 +++---
drivers/gpu/drm/nouveau/nouveau_chan.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_display.c | 3 +-
drivers/gpu/drm/nouveau/nouveau_drm.c | 59 ++++++++++++---
drivers/gpu/drm/nouveau/nouveau_sysfs.c | 8 ++-
drivers/gpu/drm/nouveau/nouveau_ttm.c | 31 ++++----
drivers/gpu/drm/nouveau/nouveau_vga.c | 5 ++
35 files changed, 297 insertions(+), 109 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/base.c
b/drivers/gpu/drm/nouveau/core/engine/device/base.c
index dd01c6c435d6..8a8f5f2d0eb5 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/base.c
@@ -131,8 +131,8 @@ nouveau_devobj_ctor(struct nouveau_object *parent,
if (ret)
return ret;
- mmio_base = pci_resource_start(device->pdev, 0);
- mmio_size = pci_resource_len(device->pdev, 0);
+ mmio_base = nv_device_resource_start(device, 0);
+ mmio_size = nv_device_resource_len(device, 0);
/* translate api disable mask into internal mapping */
disable = args->debug0;
@@ -446,6 +446,72 @@ nouveau_device_dtor(struct nouveau_object *object)
nouveau_engine_destroy(&device->base);
}
+resource_size_t
+nv_device_resource_start(struct nouveau_device *device, unsigned int bar)
+{
+ if (nv_device_is_pci(device)) {
+ return pci_resource_start(device->pdev, bar);
+ } else {
+ struct resource *res;
+ res = platform_get_resource(device->platformdev,
+ IORESOURCE_MEM, bar);
+ if (!res)
+ return 0;
+ return res->start;
+ }
+}
+
+resource_size_t
+nv_device_resource_len(struct nouveau_device *device, unsigned int bar)
+{
+ if (nv_device_is_pci(device)) {
+ return pci_resource_len(device->pdev, bar);
+ } else {
+ struct resource *res;
+ res = platform_get_resource(device->platformdev,
+ IORESOURCE_MEM, bar);
+ if (!res)
+ return 0;
+ return resource_size(res);
+ }
+}
+
+dma_addr_t
+nv_device_map_page(struct nouveau_device *device, struct page *page)
+{
+ dma_addr_t ret;
+
+ if (nv_device_is_pci(device)) {
+ ret = pci_map_page(device->pdev, page, 0, PAGE_SIZE,
+ PCI_DMA_BIDIRECTIONAL);
+ if (pci_dma_mapping_error(device->pdev, ret))
+ ret = 0;
+ } else {
+ ret = page_to_phys(page);
+ }
+
+ return ret;
+}
+
+void
+nv_device_unmap_page(struct nouveau_device *device, dma_addr_t addr)
+{
+ if (nv_device_is_pci(device))
+ pci_unmap_page(device->pdev, addr, PAGE_SIZE,
+ PCI_DMA_BIDIRECTIONAL);
+}
+
+int
+nv_device_get_irq(struct nouveau_device *device, bool stall)
+{
+ if (nv_device_is_pci(device)) {
+ return device->pdev->irq;
+ } else {
+ return platform_get_irq_byname(device->platformdev,
+ stall ? "stall" : "nonstall");
+ }
+}
+
static struct nouveau_oclass
nouveau_device_oclass = {
.handle = NV_ENGINE(DEVICE, 0x00),
@@ -457,8 +523,8 @@ nouveau_device_oclass = {
};
int
-nouveau_device_create_(struct pci_dev *pdev, u64 name, const char *sname,
- const char *cfg, const char *dbg,
+nouveau_device_create_(void *dev, enum nv_bus_type type, u64 name,
+ const char *sname, const char *cfg, const char *dbg,
int length, void **pobject)
{
struct nouveau_device *device;
@@ -476,7 +542,14 @@ nouveau_device_create_(struct pci_dev *pdev, u64 name,
const char *sname,
if (ret)
goto done;
- device->pdev = pdev;
+ switch (type) {
+ case NOUVEAU_BUS_PCI:
+ device->pdev = dev;
+ break;
+ case NOUVEAU_BUS_PLATFORM:
+ device->platformdev = dev;
+ break;
+ }
device->handle = name;
device->cfgopt = cfg;
device->dbgopt = dbg;
diff --git a/drivers/gpu/drm/nouveau/core/engine/falcon.c
b/drivers/gpu/drm/nouveau/core/engine/falcon.c
index 5e077e4ed7f6..2914646c8709 100644
--- a/drivers/gpu/drm/nouveau/core/engine/falcon.c
+++ b/drivers/gpu/drm/nouveau/core/engine/falcon.c
@@ -119,7 +119,7 @@ _nouveau_falcon_init(struct nouveau_object *object)
snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03x",
device->chipset, falcon->addr >> 12);
- ret = request_firmware(&fw, name, &device->pdev->dev);
+ ret = request_firmware(&fw, name, nv_device_base(device));
if (ret == 0) {
falcon->code.data = vmemdup(fw->data, fw->size);
falcon->code.size = fw->size;
@@ -138,7 +138,7 @@ _nouveau_falcon_init(struct nouveau_object *object)
snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xd",
device->chipset, falcon->addr >> 12);
- ret = request_firmware(&fw, name, &device->pdev->dev);
+ ret = request_firmware(&fw, name, nv_device_base(device));
if (ret) {
nv_error(falcon, "unable to load firmware data\n");
return ret;
@@ -153,7 +153,7 @@ _nouveau_falcon_init(struct nouveau_object *object)
snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xc",
device->chipset, falcon->addr >> 12);
- ret = request_firmware(&fw, name, &device->pdev->dev);
+ ret = request_firmware(&fw, name, nv_device_base(device));
if (ret) {
nv_error(falcon, "unable to load firmware code\n");
return ret;
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
index d3ec436d9cb5..6f9041ced9a2 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
@@ -86,7 +86,7 @@ nouveau_fifo_channel_create_(struct nouveau_object *parent,
}
/* map fifo control registers */
- chan->user = ioremap(pci_resource_start(device->pdev, bar) + addr +
+ chan->user = ioremap(nv_device_resource_start(device, bar) + addr +
(chan->chid * size), size);
if (!chan->user)
return -EFAULT;
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c
b/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c
index b24559315903..d145e080899a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv20.c
@@ -349,7 +349,7 @@ nv20_graph_init(struct nouveau_object *object)
nv_wr32(priv, NV10_PGRAPH_SURFACE, tmp);
/* begin RAM config */
- vramsz = pci_resource_len(nv_device(priv)->pdev, 0) - 1;
+ vramsz = nv_device_resource_len(nv_device(priv), 0) - 1;
nv_wr32(priv, 0x4009A4, nv_rd32(priv, 0x100200));
nv_wr32(priv, 0x4009A8, nv_rd32(priv, 0x100204));
nv_wr32(priv, NV10_PGRAPH_RDI_INDEX, 0x00EA0000);
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
index 193a5de1b482..6477fbf6a550 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
@@ -484,7 +484,7 @@ nv40_graph_init(struct nouveau_object *object)
engine->tile_prog(engine, i);
/* begin RAM config */
- vramsz = pci_resource_len(nv_device(priv)->pdev, 0) - 1;
+ vramsz = nv_device_resource_len(nv_device(priv), 0) - 1;
switch (nv_device(priv)->chipset) {
case 0x40:
nv_wr32(priv, 0x4009A4, nv_rd32(priv, 0x100200));
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
index a73ab209ea88..6ef8bf181b2d 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -1091,10 +1091,10 @@ nvc0_graph_ctor_fw(struct nvc0_graph_priv *priv, const
char *fwname,
int ret;
snprintf(f, sizeof(f), "nouveau/nv%02x_%s", device->chipset,
fwname);
- ret = request_firmware(&fw, f, &device->pdev->dev);
+ ret = request_firmware(&fw, f, nv_device_base(device));
if (ret) {
snprintf(f, sizeof(f), "nouveau/%s", fwname);
- ret = request_firmware(&fw, f, &device->pdev->dev);
+ ret = request_firmware(&fw, f, nv_device_base(device));
if (ret) {
nv_error(priv, "failed to load %s\n", fwname);
return ret;
diff --git a/drivers/gpu/drm/nouveau/core/engine/xtensa.c
b/drivers/gpu/drm/nouveau/core/engine/xtensa.c
index 5f6ede7c4892..92384759d2f5 100644
--- a/drivers/gpu/drm/nouveau/core/engine/xtensa.c
+++ b/drivers/gpu/drm/nouveau/core/engine/xtensa.c
@@ -112,7 +112,7 @@ _nouveau_xtensa_init(struct nouveau_object *object)
snprintf(name, sizeof(name), "nouveau/nv84_xuc%03x",
xtensa->addr >> 12);
- ret = request_firmware(&fw, name, &device->pdev->dev);
+ ret = request_firmware(&fw, name, nv_device_base(device));
if (ret) {
nv_warn(xtensa, "unable to load firmware %s\n", name);
return ret;
diff --git a/drivers/gpu/drm/nouveau/core/include/core/device.h
b/drivers/gpu/drm/nouveau/core/include/core/device.h
index 7b8ea221b00d..2a3e24e1d392 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/device.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/device.h
@@ -65,6 +65,7 @@ struct nouveau_device {
struct list_head head;
struct pci_dev *pdev;
+ struct platform_device *platformdev;
u64 handle;
const char *cfgopt;
@@ -140,4 +141,33 @@ nv_device_match(struct nouveau_object *object, u16 dev, u16
ven, u16 sub)
device->pdev->subsystem_device == sub;
}
+static inline bool
+nv_device_is_pci(struct nouveau_device *device)
+{
+ return device->pdev != NULL;
+}
+
+static inline struct device *
+nv_device_base(struct nouveau_device *device)
+{
+ return nv_device_is_pci(device) ? &device->pdev->dev :
+ &device->platformdev->dev;
+}
+
+resource_size_t
+nv_device_resource_start(struct nouveau_device *device, unsigned int bar);
+
+resource_size_t
+nv_device_resource_len(struct nouveau_device *device, unsigned int bar);
+
+dma_addr_t
+nv_device_map_page(struct nouveau_device *device, struct page *page);
+
+void
+nv_device_unmap_page(struct nouveau_device *device, dma_addr_t addr);
+
+int
+nv_device_get_irq(struct nouveau_device *device, bool stall);
+
#endif
+
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/device.h
b/drivers/gpu/drm/nouveau/core/include/engine/device.h
index b3dd2c4c2f1e..00c2f4f2dd2f 100644
--- a/drivers/gpu/drm/nouveau/core/include/engine/device.h
+++ b/drivers/gpu/drm/nouveau/core/include/engine/device.h
@@ -3,11 +3,20 @@
#include <core/device.h>
-#define nouveau_device_create(p,n,s,c,d,u)
\
- nouveau_device_create_((p), (n), (s), (c), (d), sizeof(**u), (void **)u)
+struct platform_device;
-int nouveau_device_create_(struct pci_dev *, u64 name, const char *sname,
- const char *cfg, const char *dbg, int, void **);
+enum nv_bus_type {
+ NOUVEAU_BUS_PCI,
+ NOUVEAU_BUS_PLATFORM,
+};
+
+#define nouveau_device_create(p,t,n,s,c,d,u)
\
+ nouveau_device_create_((void *)(p), (t), (n), (s), (c), (d), \
+ sizeof(**u), (void **)u)
+
+int nouveau_device_create_(void *, enum nv_bus_type type, u64 name,
+ const char *sname, const char *cfg, const char *dbg,
+ int, void **);
int nv04_identify(struct nouveau_device *);
int nv10_identify(struct nouveau_device *);
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
index adc88b73d911..7c551b59038f 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
@@ -12,6 +12,7 @@ struct nouveau_mc_intr {
struct nouveau_mc {
struct nouveau_subdev base;
bool use_msi;
+ unsigned int irq;
};
static inline struct nouveau_mc *
diff --git a/drivers/gpu/drm/nouveau/core/os.h
b/drivers/gpu/drm/nouveau/core/os.h
index 191e739f30d1..90a6c904db5b 100644
--- a/drivers/gpu/drm/nouveau/core/os.h
+++ b/drivers/gpu/drm/nouveau/core/os.h
@@ -5,6 +5,7 @@
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/pci.h>
+#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/bitops.h>
#include <linux/firmware.h>
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
index 7098ddd54678..bdf594116f3f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
@@ -118,8 +118,8 @@ nouveau_bar_create_(struct nouveau_object *parent,
if (ret)
return ret;
- bar->iomem = ioremap(pci_resource_start(device->pdev, 3),
- pci_resource_len(device->pdev, 3));
+ bar->iomem = ioremap(nv_device_resource_start(device, 3),
+ nv_device_resource_len(device, 3));
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nv50.c
b/drivers/gpu/drm/nouveau/core/subdev/bar/nv50.c
index 090d594a21b3..baa2b62bd40f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bar/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bar/nv50.c
@@ -139,7 +139,7 @@ nv50_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
/* BAR3 */
start = 0x0100000000ULL;
- limit = start + pci_resource_len(device->pdev, 3);
+ limit = start + nv_device_resource_len(device, 3);
ret = nouveau_vm_new(device, start, limit, start, &vm);
if (ret)
@@ -173,7 +173,7 @@ nv50_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
/* BAR1 */
start = 0x0000000000ULL;
- limit = start + pci_resource_len(device->pdev, 1);
+ limit = start + nv_device_resource_len(device, 1);
ret = nouveau_vm_new(device, start, limit--, start, &vm);
if (ret)
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
index bac5e754de35..3f30db62e656 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
@@ -84,7 +84,6 @@ nvc0_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
struct nouveau_object **pobject)
{
struct nouveau_device *device = nv_device(parent);
- struct pci_dev *pdev = device->pdev;
struct nvc0_bar_priv *priv;
struct nouveau_gpuobj *mem;
struct nouveau_vm *vm;
@@ -107,14 +106,14 @@ nvc0_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
if (ret)
return ret;
- ret = nouveau_vm_new(device, 0, pci_resource_len(pdev, 3), 0, &vm);
+ ret = nouveau_vm_new(device, 0, nv_device_resource_len(device, 3), 0,
&vm);
if (ret)
return ret;
atomic_inc(&vm->engref[NVDEV_SUBDEV_BAR]);
ret = nouveau_gpuobj_new(nv_object(priv), NULL,
- (pci_resource_len(pdev, 3) >> 12) * 8,
+ (nv_device_resource_len(device, 3) >> 12) * 8,
0x1000, NVOBJ_FLAG_ZERO_ALLOC,
&vm->pgt[0].obj[0]);
vm->pgt[0].refcount[0] = 1;
@@ -128,8 +127,8 @@ nvc0_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
nv_wo32(mem, 0x0200, lower_32_bits(priv->bar[0].pgd->addr));
nv_wo32(mem, 0x0204, upper_32_bits(priv->bar[0].pgd->addr));
- nv_wo32(mem, 0x0208, lower_32_bits(pci_resource_len(pdev, 3) - 1));
- nv_wo32(mem, 0x020c, upper_32_bits(pci_resource_len(pdev, 3) - 1));
+ nv_wo32(mem, 0x0208, lower_32_bits(nv_device_resource_len(device, 3) - 1));
+ nv_wo32(mem, 0x020c, upper_32_bits(nv_device_resource_len(device, 3) - 1));
/* BAR1 */
ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x1000, 0, 0,
@@ -143,7 +142,7 @@ nvc0_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
if (ret)
return ret;
- ret = nouveau_vm_new(device, 0, pci_resource_len(pdev, 1), 0, &vm);
+ ret = nouveau_vm_new(device, 0, nv_device_resource_len(device, 1), 0,
&vm);
if (ret)
return ret;
@@ -156,8 +155,8 @@ nvc0_bar_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
nv_wo32(mem, 0x0200, lower_32_bits(priv->bar[1].pgd->addr));
nv_wo32(mem, 0x0204, upper_32_bits(priv->bar[1].pgd->addr));
- nv_wo32(mem, 0x0208, lower_32_bits(pci_resource_len(pdev, 1) - 1));
- nv_wo32(mem, 0x020c, upper_32_bits(pci_resource_len(pdev, 1) - 1));
+ nv_wo32(mem, 0x0208, lower_32_bits(nv_device_resource_len(device, 1) - 1));
+ nv_wo32(mem, 0x020c, upper_32_bits(nv_device_resource_len(device, 1) - 1));
priv->base.alloc = nouveau_bar_alloc;
priv->base.kmap = nvc0_bar_kmap;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/fbmem.h
b/drivers/gpu/drm/nouveau/core/subdev/devinit/fbmem.h
index 6b56a0f4cb40..4fe49cf4c99a 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/devinit/fbmem.h
+++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/fbmem.h
@@ -24,6 +24,8 @@
*
*/
+#include <core/device.h>
+
#define NV04_PFB_BOOT_0 0x00100000
# define NV04_PFB_BOOT_0_RAM_AMOUNT 0x00000003
# define NV04_PFB_BOOT_0_RAM_AMOUNT_32MB 0x00000000
@@ -60,10 +62,10 @@
# define NV10_PFB_REFCTRL_VALID_1 (1 << 31)
static inline struct io_mapping *
-fbmem_init(struct pci_dev *pdev)
+fbmem_init(struct nouveau_device *dev)
{
- return io_mapping_create_wc(pci_resource_start(pdev, 1),
- pci_resource_len(pdev, 1));
+ return io_mapping_create_wc(nv_device_resource_start(dev, 1),
+ nv_device_resource_len(dev, 1));
}
static inline void
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c
b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c
index 7037eae46e44..052ad690b468 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c
@@ -38,7 +38,7 @@ nv04_devinit_meminit(struct nouveau_devinit *devinit)
int i;
/* Map the framebuffer aperture */
- fb = fbmem_init(nv_device(priv)->pdev);
+ fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv05.c
b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv05.c
index 98b7e6780dc7..4a19c10e5178 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv05.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv05.c
@@ -53,7 +53,7 @@ nv05_devinit_meminit(struct nouveau_devinit *devinit)
int i, v;
/* Map the framebuffer aperture */
- fb = fbmem_init(nv_device(priv)->pdev);
+ fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c
b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c
index 32b3d2131a7f..3b8d657da279 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c
@@ -46,7 +46,7 @@ nv10_devinit_meminit(struct nouveau_devinit *devinit)
mem_width_count = 2;
/* Map the framebuffer aperture */
- fb = fbmem_init(nv_device(priv)->pdev);
+ fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv20.c
b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv20.c
index 4689ba303b0b..04bc9732644c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv20.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv20.c
@@ -37,7 +37,7 @@ nv20_devinit_meminit(struct nouveau_devinit *devinit)
struct io_mapping *fb;
/* Map the framebuffer aperture */
- fb = fbmem_init(nv_device(priv)->pdev);
+ fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c
b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c
index cbc7f00c1278..1fc55c1e91a1 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c
@@ -250,10 +250,8 @@ nv50_fb_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (priv->r100c08_page) {
- priv->r100c08 = pci_map_page(device->pdev, priv->r100c08_page,
- 0, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(device->pdev, priv->r100c08))
+ priv->r100c08 = nv_device_map_page(device, priv->r100c08_page);
+ if (!priv->r100c08)
nv_warn(priv, "failed 0x100c08 page map\n");
} else {
nv_warn(priv, "failed 0x100c08 page alloc\n");
@@ -270,8 +268,7 @@ nv50_fb_dtor(struct nouveau_object *object)
struct nv50_fb_priv *priv = (void *)object;
if (priv->r100c08_page) {
- pci_unmap_page(device->pdev, priv->r100c08, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
+ nv_device_unmap_page(device, priv->r100c08);
__free_page(priv->r100c08_page);
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c
b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c
index 45470e1f0385..0670ae33ee45 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c
@@ -70,8 +70,7 @@ nvc0_fb_dtor(struct nouveau_object *object)
struct nvc0_fb_priv *priv = (void *)object;
if (priv->r100c10_page) {
- pci_unmap_page(device->pdev, priv->r100c10, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
+ nv_device_unmap_page(device, priv->r100c10);
__free_page(priv->r100c10_page);
}
@@ -94,10 +93,8 @@ nvc0_fb_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (priv->r100c10_page) {
- priv->r100c10 = pci_map_page(device->pdev, priv->r100c10_page,
- 0, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(device->pdev, priv->r100c10))
+ priv->r100c10 = nv_device_map_page(device, priv->r100c10_page);
+ if (!priv->r100c10)
return -EFAULT;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
index c33c03d2f4af..378e05b88e6f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
@@ -111,7 +111,7 @@ nouveau_i2c_port_create_(struct nouveau_object *parent,
snprintf(port->adapter.name, sizeof(port->adapter.name),
"nouveau-%s-%d", device->name, index);
port->adapter.owner = THIS_MODULE;
- port->adapter.dev.parent = &device->pdev->dev;
+ port->adapter.dev.parent = nv_device_base(device);
port->index = index;
port->func = func;
i2c_set_adapdata(&port->adapter, i2c);
diff --git a/drivers/gpu/drm/nouveau/core/subdev/instmem/nv40.c
b/drivers/gpu/drm/nouveau/core/subdev/instmem/nv40.c
index ec0b9661d614..8803809f9fc5 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/instmem/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/instmem/nv40.c
@@ -50,7 +50,6 @@ nv40_instmem_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
struct nouveau_object **pobject)
{
struct nouveau_device *device = nv_device(parent);
- struct pci_dev *pdev = device->pdev;
struct nv04_instmem_priv *priv;
int ret, bar, vs;
@@ -60,13 +59,13 @@ nv40_instmem_ctor(struct nouveau_object *parent, struct
nouveau_object *engine,
return ret;
/* map bar */
- if (pci_resource_len(pdev, 2))
+ if (nv_device_resource_len(device, 2))
bar = 2;
else
bar = 3;
- priv->iomem = ioremap(pci_resource_start(pdev, bar),
- pci_resource_len(pdev, bar));
+ priv->iomem = ioremap(nv_device_resource_start(device, bar),
+ nv_device_resource_len(device, bar));
if (!priv->iomem) {
nv_error(priv, "unable to map PRAMIN BAR\n");
return -EFAULT;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
index b4b9943773bc..572190c8363b 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
@@ -93,8 +93,8 @@ _nouveau_mc_dtor(struct nouveau_object *object)
{
struct nouveau_device *device = nv_device(object);
struct nouveau_mc *pmc = (void *)object;
- free_irq(device->pdev->irq, pmc);
- if (pmc->use_msi)
+ free_irq(pmc->irq, pmc);
+ if (nv_device_is_pci(device) && pmc->use_msi)
pci_disable_msi(device->pdev);
nouveau_subdev_destroy(&pmc->base);
}
@@ -114,22 +114,25 @@ nouveau_mc_create_(struct nouveau_object *parent, struct
nouveau_object *engine,
if (ret)
return ret;
- switch (device->pdev->device & 0x0ff0) {
- case 0x00f0:
- case 0x02e0:
- /* BR02? NFI how these would be handled yet exactly */
- break;
- default:
- switch (device->chipset) {
- case 0xaa: break; /* reported broken, nv also disable it */
- default:
- pmc->use_msi = true;
+ if (nv_device_is_pci(device))
+ switch (device->pdev->device & 0x0ff0) {
+ case 0x00f0:
+ case 0x02e0:
+ /* BR02? NFI how these would be handled yet exactly */
break;
+ default:
+ switch (device->chipset) {
+ case 0xaa:
+ /* reported broken, nv also disable it */
+ break;
+ default:
+ pmc->use_msi = true;
+ break;
}
}
pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI",
pmc->use_msi);
- if (pmc->use_msi && oclass->msi_rearm) {
+ if (nv_device_is_pci(device) && pmc->use_msi &&
oclass->msi_rearm) {
pmc->use_msi = pci_enable_msi(device->pdev) == 0;
if (pmc->use_msi) {
nv_info(pmc, "MSI interrupts enabled\n");
@@ -139,8 +142,14 @@ nouveau_mc_create_(struct nouveau_object *parent, struct
nouveau_object *engine,
pmc->use_msi = false;
}
- ret = request_irq(device->pdev->irq, nouveau_mc_intr,
- IRQF_SHARED, "nouveau", pmc);
+ ret = nv_device_get_irq(device, true);
+ if (ret < 0)
+ return ret;
+ pmc->irq = ret;
+
+ ret = request_irq(pmc->irq, nouveau_mc_intr, IRQF_SHARED,
"nouveau",
+ pmc);
+
if (ret < 0)
return ret;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
index 13c5af88a601..51fcf7960417 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
@@ -96,7 +96,7 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8 version)
acpi_handle handle;
int rev;
- handle = ACPI_HANDLE(&device->pdev->dev);
+ handle = ACPI_HANDLE(nv_device_base(device));
if (!handle)
return false;
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c
b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index 900fae01793e..a28422bc1122 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -179,12 +179,21 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
getparam->value = device->chipset;
break;
case NOUVEAU_GETPARAM_PCI_VENDOR:
- getparam->value = dev->pdev->vendor;
+ if (nv_device_is_pci(device))
+ getparam->value = dev->pdev->vendor;
+ else
+ getparam->value = 0;
break;
case NOUVEAU_GETPARAM_PCI_DEVICE:
- getparam->value = dev->pdev->device;
+ if (nv_device_is_pci(device))
+ getparam->value = dev->pdev->device;
+ else
+ getparam->value = 0;
break;
case NOUVEAU_GETPARAM_BUS_TYPE:
+ if (!nv_device_is_pci(device))
+ getparam->value = 3;
+ else
if (drm_pci_device_is_agp(dev))
getparam->value = 0;
else
diff --git a/drivers/gpu/drm/nouveau/nouveau_agp.c
b/drivers/gpu/drm/nouveau/nouveau_agp.c
index 2953c4e91e1a..51666daddb94 100644
--- a/drivers/gpu/drm/nouveau/nouveau_agp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_agp.c
@@ -75,7 +75,7 @@ nouveau_agp_enabled(struct nouveau_drm *drm)
{
struct drm_device *dev = drm->dev;
- if (!drm_pci_device_is_agp(dev) || !dev->agp)
+ if (!dev->pdev || !drm_pci_device_is_agp(dev) || !dev->agp)
return false;
if (drm->agp.stat == UNKNOWN) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c
b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 4c3feaaa1037..04564dcd7956 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2069,6 +2069,10 @@ nouveau_bios_init(struct drm_device *dev)
struct nvbios *bios = &drm->vbios;
int ret;
+ /* only relevant for PCI devices */
+ if (!dev->pdev)
+ return 0;
+
if (!NVInitVBIOS(dev))
return -ENODEV;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c
b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 488686d490c0..0e3391683469 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1255,7 +1255,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
/* fallthrough, tiled memory */
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = pci_resource_start(dev->pdev, 1);
+ mem->bus.base = nv_device_resource_start(nouveau_dev(dev), 1);
mem->bus.is_iomem = true;
if (nv_device(drm->device)->card_type >= NV_50) {
struct nouveau_bar *bar = nouveau_bar(drm->device);
@@ -1293,7 +1293,7 @@ nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object
*bo)
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nouveau_device *device = nv_device(drm->device);
- u32 mappable = pci_resource_len(device->pdev, 1) >> PAGE_SHIFT;
+ u32 mappable = nv_device_resource_len(device, 1) >> PAGE_SHIFT;
int ret;
/* as long as the bo isn't in vram, and isn't tiled, we've got
@@ -1331,6 +1331,7 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm)
{
struct ttm_dma_tt *ttm_dma = (void *)ttm;
struct nouveau_drm *drm;
+ struct nouveau_device *device;
struct drm_device *dev;
unsigned i;
int r;
@@ -1348,6 +1349,7 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm)
}
drm = nouveau_bdev(ttm->bdev);
+ device = nv_device(drm->device);
dev = drm->dev;
#if __OS_HAS_AGP
@@ -1368,13 +1370,12 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm)
}
for (i = 0; i < ttm->num_pages; i++) {
- ttm_dma->dma_address[i] = pci_map_page(dev->pdev, ttm->pages[i],
- 0, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(dev->pdev, ttm_dma->dma_address[i])) {
+ ttm_dma->dma_address[i] = nv_device_map_page(device,
+ ttm->pages[i]);
+ if (!ttm_dma->dma_address[i]) {
while (--i) {
- pci_unmap_page(dev->pdev, ttm_dma->dma_address[i],
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ nv_device_unmap_page(device,
+ ttm_dma->dma_address[i]);
ttm_dma->dma_address[i] = 0;
}
ttm_pool_unpopulate(ttm);
@@ -1389,6 +1390,7 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
{
struct ttm_dma_tt *ttm_dma = (void *)ttm;
struct nouveau_drm *drm;
+ struct nouveau_device *device;
struct drm_device *dev;
unsigned i;
bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
@@ -1397,6 +1399,7 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
return;
drm = nouveau_bdev(ttm->bdev);
+ device = nv_device(drm->device);
dev = drm->dev;
#if __OS_HAS_AGP
@@ -1415,8 +1418,7 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
for (i = 0; i < ttm->num_pages; i++) {
if (ttm_dma->dma_address[i]) {
- pci_unmap_page(dev->pdev, ttm_dma->dma_address[i],
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ nv_device_unmap_page(device, ttm_dma->dma_address[i]);
}
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c
b/drivers/gpu/drm/nouveau/nouveau_chan.c
index cc5152be2cf1..ccb6b452d6d0 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -154,7 +154,7 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct
nouveau_cli *cli,
* nfi why this exists, it came from the -nv ddx.
*/
args.flags = NV_DMA_TARGET_PCI | NV_DMA_ACCESS_RDWR;
- args.start = pci_resource_start(device->pdev, 1);
+ args.start = nv_device_resource_start(device, 1);
args.limit = args.start + limit;
} else {
args.flags = NV_DMA_TARGET_VRAM | NV_DMA_ACCESS_RDWR;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c
b/drivers/gpu/drm/nouveau/nouveau_display.c
index b4262ad66b18..bc392412f14f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -339,6 +339,7 @@ int
nouveau_display_create(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_device *device = nouveau_dev(dev);
struct nouveau_display *disp;
int ret, gen;
@@ -379,7 +380,7 @@ nouveau_display_create(struct drm_device *dev)
}
dev->mode_config.funcs = &nouveau_mode_config_funcs;
- dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
+ dev->mode_config.fb_base = nv_device_resource_start(device, 1);
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c
b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 98a22e6e27a1..c284453ec5eb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -81,7 +81,7 @@ module_param_named(runpm, nouveau_runtime_pm, int, 0400);
static struct drm_driver driver;
static u64
-nouveau_name(struct pci_dev *pdev)
+nouveau_pci_name(struct pci_dev *pdev)
{
u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
name |= pdev->bus->number << 16;
@@ -89,15 +89,30 @@ nouveau_name(struct pci_dev *pdev)
return name | PCI_FUNC(pdev->devfn);
}
+static u64
+nouveau_platform_name(struct platform_device *platformdev)
+{
+ return platformdev->id;
+}
+
+static u64
+nouveau_name(struct drm_device *dev)
+{
+ if (dev->pdev)
+ return nouveau_pci_name(dev->pdev);
+ else
+ return nouveau_platform_name(dev->platformdev);
+}
+
static int
-nouveau_cli_create(struct pci_dev *pdev, const char *name,
+nouveau_cli_create(u64 name, const char *sname,
int size, void **pcli)
{
struct nouveau_cli *cli;
int ret;
*pcli = NULL;
- ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config,
+ ret = nouveau_client_create_(sname, name, nouveau_config,
nouveau_debug, size, pcli);
cli = *pcli;
if (ret) {
@@ -281,7 +296,8 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
remove_conflicting_framebuffers(aper, "nouveaufb", boot);
kfree(aper);
- ret = nouveau_device_create(pdev, nouveau_name(pdev), pci_name(pdev),
+ ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
+ nouveau_pci_name(pdev), pci_name(pdev),
nouveau_config, nouveau_debug, &device);
if (ret)
return ret;
@@ -305,6 +321,12 @@ nouveau_get_hdmi_dev(struct drm_device *dev)
struct nouveau_drm *drm = dev->dev_private;
struct pci_dev *pdev = dev->pdev;
+ if (!pdev) {
+ DRM_INFO("not a PCI device; no HDMI");
+ drm->hdmi_device = NULL;
+ return;
+ }
+
/* subfunction one is a hdmi audio device? */
drm->hdmi_device = pci_get_bus_and_slot((unsigned
int)pdev->bus->number,
PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
@@ -330,7 +352,8 @@ nouveau_drm_load(struct drm_device *dev, unsigned long
flags)
struct nouveau_drm *drm;
int ret;
- ret = nouveau_cli_create(pdev, "DRM", sizeof(*drm),
(void**)&drm);
+ ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
+ (void **)&drm);
if (ret)
return ret;
@@ -345,7 +368,7 @@ nouveau_drm_load(struct drm_device *dev, unsigned long
flags)
/* make sure AGP controller is in a consistent state before we
* (possibly) execute vbios init tables (see nouveau_agp.h)
*/
- if (drm_pci_device_is_agp(dev) && dev->agp) {
+ if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
/* dummy device object, doesn't init anything, but allows
* agp code access to registers
*/
@@ -662,7 +685,6 @@ static int nouveau_pmops_thaw(struct device *dev)
static int
nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
{
- struct pci_dev *pdev = dev->pdev;
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_cli *cli;
char name[32], tmpname[TASK_COMM_LEN];
@@ -676,7 +698,9 @@ nouveau_drm_open(struct drm_device *dev, struct drm_file
*fpriv)
get_task_comm(tmpname, current);
snprintf(name, sizeof(name), "%s[%d]", tmpname,
pid_nr(fpriv->pid));
- ret = nouveau_cli_create(pdev, name, sizeof(*cli), (void **)&cli);
+ ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
+ (void **)&cli);
+
if (ret)
goto out_suspend;
@@ -963,6 +987,25 @@ nouveau_drm_pci_driver = {
.driver.pm = &nouveau_pm_ops,
};
+int nouveau_drm_platform_probe(struct platform_device *pdev)
+{
+ struct nouveau_device *device;
+ int ret;
+
+ ret = nouveau_device_create(pdev, NOUVEAU_BUS_PLATFORM,
+ nouveau_platform_name(pdev),
+ dev_name(&pdev->dev), nouveau_config,
+ nouveau_debug, &device);
+
+ ret = drm_platform_init(&driver, pdev);
+ if (ret) {
+ nouveau_object_ref(NULL, (struct nouveau_object **)&device);
+ return ret;
+ }
+
+ return ret;
+}
+
static int __init
nouveau_drm_init(void)
{
diff --git a/drivers/gpu/drm/nouveau/nouveau_sysfs.c
b/drivers/gpu/drm/nouveau/nouveau_sysfs.c
index 89201a17ce75..75dda2b07176 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sysfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sysfs.c
@@ -30,7 +30,7 @@
static inline struct drm_device *
drm_device(struct device *d)
{
- return pci_get_drvdata(to_pci_dev(d));
+ return dev_get_drvdata(d);
}
#define snappendf(p,r,f,a...) do {
\
@@ -132,9 +132,10 @@ nouveau_sysfs_fini(struct drm_device *dev)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_device *device = nv_device(drm->device);
if (sysfs->ctrl) {
- device_remove_file(&dev->pdev->dev, &dev_attr_pstate);
+ device_remove_file(nv_device_base(device), &dev_attr_pstate);
nouveau_object_del(nv_object(drm), NVDRM_DEVICE, NVDRM_CONTROL);
}
@@ -146,6 +147,7 @@ int
nouveau_sysfs_init(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_device *device = nv_device(drm->device);
struct nouveau_sysfs *sysfs;
int ret;
@@ -156,7 +158,7 @@ nouveau_sysfs_init(struct drm_device *dev)
ret = nouveau_object_new(nv_object(drm), NVDRM_DEVICE, NVDRM_CONTROL,
NV_CONTROL_CLASS, NULL, 0, &sysfs->ctrl);
if (ret == 0)
- device_create_file(&dev->pdev->dev, &dev_attr_pstate);
+ device_create_file(nv_device_base(device), &dev_attr_pstate);
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c
b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index d45d50da978f..9574f87bf31e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -354,21 +354,26 @@ int
nouveau_ttm_init(struct nouveau_drm *drm)
{
struct drm_device *dev = drm->dev;
+ struct nouveau_device *device = nv_device(drm->device);
u32 bits;
int ret;
bits = nouveau_vmmgr(drm->device)->dma_bits;
- if ( drm->agp.stat == ENABLED ||
- !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
- bits = 32;
-
- ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
- if (ret)
- return ret;
-
- ret = pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
- if (ret)
- pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32));
+ if (nv_device_is_pci(device)) {
+ if (drm->agp.stat == ENABLED ||
+ !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
+ bits = 32;
+
+ ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
+ if (ret)
+ return ret;
+
+ ret = pci_set_consistent_dma_mask(dev->pdev,
+ DMA_BIT_MASK(bits));
+ if (ret)
+ pci_set_consistent_dma_mask(dev->pdev,
+ DMA_BIT_MASK(32));
+ }
ret = nouveau_ttm_global_init(drm);
if (ret)
@@ -394,8 +399,8 @@ nouveau_ttm_init(struct nouveau_drm *drm)
return ret;
}
- drm->ttm.mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
+ drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(device, 1),
+ nv_device_resource_len(device, 1));
/* GART init */
if (drm->agp.stat != ENABLED) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c
b/drivers/gpu/drm/nouveau/nouveau_vga.c
index 81638d7f2eff..cb0824b875c7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
@@ -82,6 +82,11 @@ nouveau_vga_init(struct nouveau_drm *drm)
{
struct drm_device *dev = drm->dev;
bool runtime = false;
+
+ /* only relevant for PCI devices */
+ if (!dev->pdev)
+ return;
+
vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode);
if (nouveau_runtime_pm == 1)
--
1.8.5.4
Emil Velikov
2014-Feb-12 14:18 UTC
[Nouveau] [PATCH v2] drm/nouveau: support for platform devices
On 12/02/14 05:38, Alexandre Courbot wrote:> Upcoming mobile Kepler GPUs (such as GK20A) use the platform bus instead > of PCI to which Nouveau is tightly dependent. This patch allows Nouveau > to handle platform devices by: > > - abstracting PCI-dependent functions that were typically used for > resource querying and page mapping, > - introducing a nv_device_is_pci() function that allows to make > PCI-dependent code conditional, > - providing a nouveau_drm_platform_probe() function that takes a GPU > platform device to be probed. > > Core code as well as engine/subdev drivers are updated wherever possible > to make use of these functions. Some older drivers are too dependent on > PCI to be properly updated, but all newer code on which future chips may > depend should at least be runnable with platform devices. >Hi Alexandre I've tried really hard to find something wrong with this patch but it seems that you have it polished very nicely. There is one quite minor nit in-line, but I'm not fussed either way.> Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> > --- > Changes since v1: > - Refactored nouveau_device_create_() to take an additional bus type > argument instead of having two versions of it that duplicate code. > - Fixed a typo when substituting pci_resource_* with nv_device_resource_* > - Check whether devices are PCI in relevant functions instead of > nouveau_drm_load(). > > drivers/gpu/drm/nouveau/core/engine/device/base.c | 83 ++++++++++++++++++++-- > drivers/gpu/drm/nouveau/core/engine/falcon.c | 6 +- > drivers/gpu/drm/nouveau/core/engine/fifo/base.c | 2 +- > drivers/gpu/drm/nouveau/core/engine/graph/nv20.c | 2 +- > drivers/gpu/drm/nouveau/core/engine/graph/nv40.c | 2 +- > drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 4 +- > drivers/gpu/drm/nouveau/core/engine/xtensa.c | 2 +- > drivers/gpu/drm/nouveau/core/include/core/device.h | 30 ++++++++ > .../gpu/drm/nouveau/core/include/engine/device.h | 17 +++-- > drivers/gpu/drm/nouveau/core/include/subdev/mc.h | 1 + > drivers/gpu/drm/nouveau/core/os.h | 1 + > drivers/gpu/drm/nouveau/core/subdev/bar/base.c | 4 +- > drivers/gpu/drm/nouveau/core/subdev/bar/nv50.c | 4 +- > drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c | 15 ++-- > .../gpu/drm/nouveau/core/subdev/devinit/fbmem.h | 8 ++- > drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c | 2 +- > drivers/gpu/drm/nouveau/core/subdev/devinit/nv05.c | 2 +- > drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c | 2 +- > drivers/gpu/drm/nouveau/core/subdev/devinit/nv20.c | 2 +- > drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c | 9 +-- > drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c | 9 +-- > drivers/gpu/drm/nouveau/core/subdev/i2c/base.c | 2 +- > drivers/gpu/drm/nouveau/core/subdev/instmem/nv40.c | 7 +- > drivers/gpu/drm/nouveau/core/subdev/mc/base.c | 39 ++++++---- > drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 2 +- > drivers/gpu/drm/nouveau/nouveau_abi16.c | 13 +++- > drivers/gpu/drm/nouveau/nouveau_agp.c | 2 +- > drivers/gpu/drm/nouveau/nouveau_bios.c | 4 ++ > drivers/gpu/drm/nouveau/nouveau_bo.c | 22 +++--- > drivers/gpu/drm/nouveau/nouveau_chan.c | 2 +- > drivers/gpu/drm/nouveau/nouveau_display.c | 3 +- > drivers/gpu/drm/nouveau/nouveau_drm.c | 59 ++++++++++++--- > drivers/gpu/drm/nouveau/nouveau_sysfs.c | 8 ++- > drivers/gpu/drm/nouveau/nouveau_ttm.c | 31 ++++---- > drivers/gpu/drm/nouveau/nouveau_vga.c | 5 ++ > 35 files changed, 297 insertions(+), 109 deletions(-) >[snip]> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c > index b4b9943773bc..572190c8363b 100644 > --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c > +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c > @@ -93,8 +93,8 @@ _nouveau_mc_dtor(struct nouveau_object *object) > { > struct nouveau_device *device = nv_device(object); > struct nouveau_mc *pmc = (void *)object; > - free_irq(device->pdev->irq, pmc); > - if (pmc->use_msi) > + free_irq(pmc->irq, pmc); > + if (nv_device_is_pci(device) && pmc->use_msi)You should be able to keep the conditional as is.> pci_disable_msi(device->pdev); > nouveau_subdev_destroy(&pmc->base); > } > @@ -114,22 +114,25 @@ nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, > if (ret) > return ret; > > - switch (device->pdev->device & 0x0ff0) { > - case 0x00f0: > - case 0x02e0: > - /* BR02? NFI how these would be handled yet exactly */ > - break; > - default: > - switch (device->chipset) { > - case 0xaa: break; /* reported broken, nv also disable it */ > - default: > - pmc->use_msi = true; > + if (nv_device_is_pci(device)) > + switch (device->pdev->device & 0x0ff0) { > + case 0x00f0: > + case 0x02e0: > + /* BR02? NFI how these would be handled yet exactly */ > break; > + default: > + switch (device->chipset) { > + case 0xaa: > + /* reported broken, nv also disable it */ > + break; > + default: > + pmc->use_msi = true; > + break; > } > } > > pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", pmc->use_msi);As you explicitly disable msi on platform devices you can move the option parsing within the if (nv_device_is_pci()) block. This way you can drop the change in the following conditional and the similar one in _nouveau_mc_dtor.> - if (pmc->use_msi && oclass->msi_rearm) { > + if (nv_device_is_pci(device) && pmc->use_msi && oclass->msi_rearm) {Many thanks, and again, welcome to nouveau :-) -Emil