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[src/trunk]: src/sys/arch/arm/nvidia attach nouveau to fdt
details: https://anonhg.NetBSD.org/src/rev/65addad6d0d8
branches: trunk
changeset: 342265:65addad6d0d8
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Sun Dec 13 22:05:52 2015 +0000
description:
attach nouveau to fdt
diffstat:
sys/arch/arm/nvidia/tegra_nouveau.c | 101 +++++++++++++++++++++++++++--------
1 files changed, 76 insertions(+), 25 deletions(-)
diffs (190 lines):
diff -r 0273df64f840 -r 65addad6d0d8 sys/arch/arm/nvidia/tegra_nouveau.c
--- a/sys/arch/arm/nvidia/tegra_nouveau.c Sun Dec 13 21:53:02 2015 +0000
+++ b/sys/arch/arm/nvidia/tegra_nouveau.c Sun Dec 13 22:05:52 2015 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra_nouveau.c,v 1.7 2015/10/27 13:21:19 riastradh Exp $ */
+/* $NetBSD: tegra_nouveau.c,v 1.8 2015/12/13 22:05:52 jmcneill Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -26,10 +26,8 @@
* SUCH DAMAGE.
*/
-#include "locators.h"
-
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra_nouveau.c,v 1.7 2015/10/27 13:21:19 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra_nouveau.c,v 1.8 2015/12/13 22:05:52 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -42,6 +40,8 @@
#include <arm/nvidia/tegra_reg.h>
#include <arm/nvidia/tegra_var.h>
+#include <dev/fdt/fdtvar.h>
+
#include <drm/drmP.h>
#include <engine/device.h>
@@ -54,7 +54,9 @@
struct tegra_nouveau_softc {
device_t sc_dev;
+ bus_space_tag_t sc_bst;
bus_dma_tag_t sc_dmat;
+ int sc_phandle;
struct drm_device *sc_drm_dev;
struct platform_device sc_platform_dev;
struct nouveau_device *sc_nv_dev;
@@ -88,22 +90,24 @@
static int
tegra_nouveau_match(device_t parent, cfdata_t cf, void *aux)
{
- return 1;
+ const char * const compatible[] = { "nvidia,gk20a", NULL };
+ struct fdt_attach_args * const faa = aux;
+
+ return of_match_compatible(faa->faa_phandle, compatible);
}
static void
tegra_nouveau_attach(device_t parent, device_t self, void *aux)
{
struct tegra_nouveau_softc * const sc = device_private(self);
- struct tegraio_attach_args * const tio = aux;
-#if notyet
- const struct tegra_locators * const loc = &tio->tio_loc;
-#endif
+ struct fdt_attach_args * const faa = aux;
prop_dictionary_t prop = device_properties(self);
int error;
sc->sc_dev = self;
- sc->sc_dmat = tio->tio_dmat;
+ sc->sc_bst = faa->faa_bst;
+ sc->sc_dmat = faa->faa_dmat;
+ sc->sc_phandle = faa->faa_phandle;
aprint_naive("\n");
aprint_normal(": GPU\n");
@@ -131,9 +135,15 @@
struct tegra_nouveau_softc * const sc = device_private(self);
struct drm_driver * const driver = nouveau_drm_driver;
struct drm_device *dev;
- bus_space_tag_t bst = &armv7_generic_bs_tag;
+ bus_addr_t addr[2], size[2];
int error;
+ if (fdtbus_get_reg(sc->sc_phandle, 0, &addr[0], &size[0]) != 0 ||
+ fdtbus_get_reg(sc->sc_phandle, 1, &addr[1], &size[1]) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
driver->kdriver.platform_device = &sc->sc_platform_dev;
driver->bus = &drm_tegra_nouveau_bus;
@@ -142,7 +152,7 @@
aprint_error_dev(self, "couldn't allocate DRM device\n");
return;
}
- dev->bst = bst;
+ dev->bst = sc->sc_bst;
dev->bus_dmat = sc->sc_dmat;
dev->dmat = dev->bus_dmat;
dev->dmat_subregion_p = false;
@@ -152,13 +162,12 @@
dev->platformdev->pd_dev = sc->sc_dev;
dev->platformdev->dmat = sc->sc_dmat;
dev->platformdev->nresource = 2;
- dev->platformdev->resource[0].tag = bst;
- dev->platformdev->resource[0].start = TEGRA_GPU_BASE;
- dev->platformdev->resource[0].len = 0x01000000;
- dev->platformdev->resource[1].tag = bst;
- dev->platformdev->resource[1].start = TEGRA_GPU_BASE +
- dev->platformdev->resource[0].len;
- dev->platformdev->resource[1].len = 0x01000000;
+ dev->platformdev->resource[0].tag = sc->sc_bst;
+ dev->platformdev->resource[0].start = addr[0];
+ dev->platformdev->resource[0].len = size[0];
+ dev->platformdev->resource[1].tag = sc->sc_bst;
+ dev->platformdev->resource[1].start = addr[1];
+ dev->platformdev->resource[1].len = size[1];
error = -drm_dev_register(dev, 0);
if (error) {
@@ -206,18 +215,58 @@
irqreturn_t (*handler)(void *), int flags, const char *name, void *arg,
struct drm_bus_irq_cookie **cookiep)
{
+ struct tegra_nouveau_softc * const sc = device_private(dev->dev);
+ char intrstr[128];
+ char *inames, *p;
+ u_int index;
void *ih;
- int irq = TEGRA_INTR_GPU;
+ int len, resid;
+
+ len = OF_getproplen(sc->sc_phandle, "interrupt-names");
+ if (len <= 0) {
+ aprint_error_dev(dev->dev, "no interrupt-names property\n");
+ return -EIO;
+ }
- ih = intr_establish(irq, IPL_DRM, IST_LEVEL, handler, arg);
+ inames = kmem_alloc(len, KM_SLEEP);
+ if (OF_getprop(sc->sc_phandle, "interrupt-names", inames, len) != len) {
+ aprint_error_dev(dev->dev, "failed to get interrupt-names\n");
+ kmem_free(inames, len);
+ return -EIO;
+ }
+ p = inames;
+ resid = len;
+ index = 0;
+ while (resid > 0) {
+ if (strcmp(name, p) == 0)
+ break;
+ const int slen = strlen(p) + 1;
+ p += slen;
+ len -= slen;
+ ++index;
+ }
+ kmem_free(inames, len);
+ if (len == 0) {
+ aprint_error_dev(dev->dev, "unknown interrupt name '%s'\n",
+ name);
+ return -EINVAL;
+ }
+
+ if (!fdtbus_intr_str(sc->sc_phandle, index, intrstr, sizeof(intrstr))) {
+ aprint_error_dev(dev->dev, "failed to decode interrupt\n");
+ return -ENXIO;
+ }
+
+ ih = fdtbus_intr_establish(sc->sc_phandle, index, IPL_DRM,
+ FDT_INTR_MPSAFE, handler, arg);
if (ih == NULL) {
aprint_error_dev(dev->dev,
- "couldn't establish interrupt (%s)\n", name);
+ "failed to establish interrupt on %s\n", intrstr);
return -ENOENT;
}
- aprint_normal_dev(dev->dev, "interrupting on irq %d (%s)\n",
- irq, name);
+ aprint_normal_dev(dev->dev, "interrupting on %s\n", intrstr);
+
*cookiep = (struct drm_bus_irq_cookie *)ih;
return 0;
}
@@ -226,5 +275,7 @@
tegra_nouveau_irq_uninstall(struct drm_device *dev,
struct drm_bus_irq_cookie *cookie)
{
- intr_disestablish(cookie);
+ struct tegra_nouveau_softc * const sc = device_private(dev->dev);
+
+ fdtbus_intr_disestablish(sc->sc_phandle, cookie);
}
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