From: =?utf-8?q?Marcin=20Ko=C5=9Bcielnicki?= <[email protected]> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit
On nv50, this will be needed by applications using CUDA to know how much stack/local memory to allocate. Signed-off-by: Marcin KoÅcielnicki <[email protected]> Signed-off-by: Ben Skeggs <[email protected]> drivers/gpu/drm/nouveau/nouveau_reg.h | 1 + drivers/gpu/drm/nouveau/nouveau_state.c | 9 +++++++++ include/drm/nouveau_drm.h | 1 + 3 files changed, 11 insertions(+), 0 deletions(-) --- http://git.linuxtv.org/v4l-dvb.git?a=commitdiff;h=69c9700b544e496dc3ccf472a4f3a76dcf4abaf7 diff --git a/drivers/gpu/drm/nouveau/nouveau_reg.h b/drivers/gpu/drm/nouveau/nouveau_reg.h index 251f1b3..aa9b310 100644 --- a/drivers/gpu/drm/nouveau/nouveau_reg.h +++ b/drivers/gpu/drm/nouveau/nouveau_reg.h @@ -99,6 +99,7 @@ * the card will hang early on in the X init process. */ # define NV_PMC_ENABLE_UNK13 (1<<13) +#define NV40_PMC_GRAPH_UNITS 0x00001540 #define NV40_PMC_BACKLIGHT 0x000015f0 # define NV40_PMC_BACKLIGHT_MASK 0x001f0000 #define NV40_PMC_1700 0x00001700 diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index 241e24d..fcd7610 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -825,6 +825,15 @@ int nouveau_ioctl_getparam(struct drm_device *dev, void *data, case NOUVEAU_GETPARAM_VM_VRAM_BASE: getparam->value = dev_priv->vm_vram_base; break; + case NOUVEAU_GETPARAM_GRAPH_UNITS: + /* NV40 and NV50 versions are quite different, but register + * address is the same. User is supposed to know the card + * family anyway... */ + if (dev_priv->chipset >= 0x40) { + getparam->value = nv_rd32(dev, NV40_PMC_GRAPH_UNITS); + break; + } + /* FALLTHRU */ default: NV_ERROR(dev, "unknown parameter %lld\n", getparam->param); return -EINVAL; diff --git a/include/drm/nouveau_drm.h b/include/drm/nouveau_drm.h index 1e67c44..f745948 100644 --- a/include/drm/nouveau_drm.h +++ b/include/drm/nouveau_drm.h @@ -77,6 +77,7 @@ struct drm_nouveau_gpuobj_free { #define NOUVEAU_GETPARAM_PCI_PHYSICAL 10 #define NOUVEAU_GETPARAM_CHIPSET_ID 11 #define NOUVEAU_GETPARAM_VM_VRAM_BASE 12 +#define NOUVEAU_GETPARAM_GRAPH_UNITS 13 struct drm_nouveau_getparam { uint64_t param; uint64_t value;
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