linux-hardened/drivers/gpu/drm/nouveau/nv50_mpeg.c
Ben Skeggs 6c320fef58 drm/nouveau: pass flag to engine fini() method on suspend
It may not be necessary to fail in certain cases (such as failing to idle)
on module unload, whereas on suspend it's important to ensure a consistent
state can be restored on resume.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-07-25 09:43:22 +10:00

256 lines
6.7 KiB
C

/*
* Copyright 2011 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
*/
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_ramht.h"
struct nv50_mpeg_engine {
struct nouveau_exec_engine base;
};
static inline u32
CTX_PTR(struct drm_device *dev, u32 offset)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
if (dev_priv->chipset == 0x50)
offset += 0x0260;
else
offset += 0x0060;
return offset;
}
static int
nv50_mpeg_context_new(struct nouveau_channel *chan, int engine)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *ramin = chan->ramin;
struct nouveau_gpuobj *ctx = NULL;
int ret;
NV_DEBUG(dev, "ch%d\n", chan->id);
ret = nouveau_gpuobj_new(dev, chan, 128 * 4, 0, NVOBJ_FLAG_ZERO_ALLOC |
NVOBJ_FLAG_ZERO_FREE, &ctx);
if (ret)
return ret;
nv_wo32(ramin, CTX_PTR(dev, 0x00), 0x80190002);
nv_wo32(ramin, CTX_PTR(dev, 0x04), ctx->vinst + ctx->size - 1);
nv_wo32(ramin, CTX_PTR(dev, 0x08), ctx->vinst);
nv_wo32(ramin, CTX_PTR(dev, 0x0c), 0);
nv_wo32(ramin, CTX_PTR(dev, 0x10), 0);
nv_wo32(ramin, CTX_PTR(dev, 0x14), 0x00010000);
nv_wo32(ctx, 0x70, 0x00801ec1);
nv_wo32(ctx, 0x7c, 0x0000037c);
dev_priv->engine.instmem.flush(dev);
chan->engctx[engine] = ctx;
return 0;
}
static void
nv50_mpeg_context_del(struct nouveau_channel *chan, int engine)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct nouveau_gpuobj *ctx = chan->engctx[engine];
struct drm_device *dev = chan->dev;
unsigned long flags;
u32 inst, i;
if (!chan->ramin)
return;
inst = chan->ramin->vinst >> 12;
inst |= 0x80000000;
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000);
if (nv_rd32(dev, 0x00b318) == inst)
nv_mask(dev, 0x00b318, 0x80000000, 0x00000000);
nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001);
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
for (i = 0x00; i <= 0x14; i += 4)
nv_wo32(chan->ramin, CTX_PTR(dev, i), 0x00000000);
nouveau_gpuobj_ref(NULL, &ctx);
chan->engctx[engine] = NULL;
}
static int
nv50_mpeg_object_new(struct nouveau_channel *chan, int engine,
u32 handle, u16 class)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *obj = NULL;
int ret;
ret = nouveau_gpuobj_new(dev, chan, 16, 16, NVOBJ_FLAG_ZERO_FREE, &obj);
if (ret)
return ret;
obj->engine = 2;
obj->class = class;
nv_wo32(obj, 0x00, class);
nv_wo32(obj, 0x04, 0x00000000);
nv_wo32(obj, 0x08, 0x00000000);
nv_wo32(obj, 0x0c, 0x00000000);
dev_priv->engine.instmem.flush(dev);
ret = nouveau_ramht_insert(chan, handle, obj);
nouveau_gpuobj_ref(NULL, &obj);
return ret;
}
static void
nv50_mpeg_tlb_flush(struct drm_device *dev, int engine)
{
nv50_vm_flush_engine(dev, 0x08);
}
static int
nv50_mpeg_init(struct drm_device *dev, int engine)
{
nv_wr32(dev, 0x00b32c, 0x00000000);
nv_wr32(dev, 0x00b314, 0x00000100);
nv_wr32(dev, 0x00b0e0, 0x0000001a);
nv_wr32(dev, 0x00b220, 0x00000044);
nv_wr32(dev, 0x00b300, 0x00801ec1);
nv_wr32(dev, 0x00b390, 0x00000000);
nv_wr32(dev, 0x00b394, 0x00000000);
nv_wr32(dev, 0x00b398, 0x00000000);
nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001);
nv_wr32(dev, 0x00b100, 0xffffffff);
nv_wr32(dev, 0x00b140, 0xffffffff);
if (!nv_wait(dev, 0x00b200, 0x00000001, 0x00000000)) {
NV_ERROR(dev, "PMPEG init: 0x%08x\n", nv_rd32(dev, 0x00b200));
return -EBUSY;
}
return 0;
}
static int
nv50_mpeg_fini(struct drm_device *dev, int engine, bool suspend)
{
/*XXX: context save for s/r */
nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000);
nv_wr32(dev, 0x00b140, 0x00000000);
return 0;
}
static void
nv50_mpeg_isr(struct drm_device *dev)
{
u32 stat = nv_rd32(dev, 0x00b100);
u32 type = nv_rd32(dev, 0x00b230);
u32 mthd = nv_rd32(dev, 0x00b234);
u32 data = nv_rd32(dev, 0x00b238);
u32 show = stat;
if (stat & 0x01000000) {
/* happens on initial binding of the object */
if (type == 0x00000020 && mthd == 0x0000) {
nv_wr32(dev, 0x00b308, 0x00000100);
show &= ~0x01000000;
}
}
if (show && nouveau_ratelimit()) {
NV_INFO(dev, "PMPEG - 0x%08x 0x%08x 0x%08x 0x%08x\n",
stat, type, mthd, data);
}
nv_wr32(dev, 0x00b100, stat);
nv_wr32(dev, 0x00b230, 0x00000001);
nv50_fb_vm_trap(dev, 1);
}
static void
nv50_vpe_isr(struct drm_device *dev)
{
if (nv_rd32(dev, 0x00b100))
nv50_mpeg_isr(dev);
if (nv_rd32(dev, 0x00b800)) {
u32 stat = nv_rd32(dev, 0x00b800);
NV_INFO(dev, "PMSRCH: 0x%08x\n", stat);
nv_wr32(dev, 0xb800, stat);
}
}
static void
nv50_mpeg_destroy(struct drm_device *dev, int engine)
{
struct nv50_mpeg_engine *pmpeg = nv_engine(dev, engine);
nouveau_irq_unregister(dev, 0);
NVOBJ_ENGINE_DEL(dev, MPEG);
kfree(pmpeg);
}
int
nv50_mpeg_create(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_mpeg_engine *pmpeg;
pmpeg = kzalloc(sizeof(*pmpeg), GFP_KERNEL);
if (!pmpeg)
return -ENOMEM;
pmpeg->base.destroy = nv50_mpeg_destroy;
pmpeg->base.init = nv50_mpeg_init;
pmpeg->base.fini = nv50_mpeg_fini;
pmpeg->base.context_new = nv50_mpeg_context_new;
pmpeg->base.context_del = nv50_mpeg_context_del;
pmpeg->base.object_new = nv50_mpeg_object_new;
pmpeg->base.tlb_flush = nv50_mpeg_tlb_flush;
if (dev_priv->chipset == 0x50) {
nouveau_irq_register(dev, 0, nv50_vpe_isr);
NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base);
NVOBJ_CLASS(dev, 0x3174, MPEG);
#if 0
NVOBJ_ENGINE_ADD(dev, ME, &pme->base);
NVOBJ_CLASS(dev, 0x4075, ME);
#endif
} else {
nouveau_irq_register(dev, 0, nv50_mpeg_isr);
NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base);
NVOBJ_CLASS(dev, 0x8274, MPEG);
}
return 0;
}