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// SPDX-License-Identifier: MIT
#include <drm/drm_crtc.h>
#include "crc.h"
#include "core.h"
#include "disp.h"
#include "head.h"
#include <nvif/push507c.h>
#include <nvhw/class/cl907d.h>
#define CRC907D_MAX_ENTRIES 255
struct crc907d_notifier {
u32 status;
u32 :32; /* reserved */
struct crc907d_entry {
u32 status;
u32 compositor_crc;
u32 output_crc[2];
} entries[CRC907D_MAX_ENTRIES];
} __packed;
static int
crc907d_set_src(struct nv50_head *head, int or, enum nv50_crc_source_type source,
struct nv50_crc_notifier_ctx *ctx)
{
struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
const int i = head->base.index;
u32 crc_args = NVDEF(NV907D, HEAD_SET_CRC_CONTROL, CONTROLLING_CHANNEL, CORE) |
NVDEF(NV907D, HEAD_SET_CRC_CONTROL, EXPECT_BUFFER_COLLAPSE, FALSE) |
NVDEF(NV907D, HEAD_SET_CRC_CONTROL, TIMESTAMP_MODE, FALSE) |
NVDEF(NV907D, HEAD_SET_CRC_CONTROL, SECONDARY_OUTPUT, NONE) |
NVDEF(NV907D, HEAD_SET_CRC_CONTROL, CRC_DURING_SNOOZE, DISABLE) |
NVDEF(NV907D, HEAD_SET_CRC_CONTROL, WIDE_PIPE_CRC, ENABLE);
int ret;
switch (source) {
case NV50_CRC_SOURCE_TYPE_SOR:
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, SOR(or));
break;
case NV50_CRC_SOURCE_TYPE_PIOR:
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, PIOR(or));
break;
case NV50_CRC_SOURCE_TYPE_DAC:
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, DAC(or));
break;
case NV50_CRC_SOURCE_TYPE_RG:
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, RG(i));
break;
case NV50_CRC_SOURCE_TYPE_SF:
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, SF(i));
break;
case NV50_CRC_SOURCE_NONE:
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, NONE);
break;
}
if ((ret = PUSH_WAIT(push, 4)))
return ret;
if (source) {
PUSH_MTHD(push, NV907D, HEAD_SET_CONTEXT_DMA_CRC(i), ctx->ntfy.handle);
PUSH_MTHD(push, NV907D, HEAD_SET_CRC_CONTROL(i), crc_args);
} else {
PUSH_MTHD(push, NV907D, HEAD_SET_CRC_CONTROL(i), crc_args);
PUSH_MTHD(push, NV907D, HEAD_SET_CONTEXT_DMA_CRC(i), 0);
}
return 0;
}
static int
crc907d_set_ctx(struct nv50_head *head, struct nv50_crc_notifier_ctx *ctx)
{
struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
const int i = head->base.index;
int ret;
if ((ret = PUSH_WAIT(push, 2)))
return ret;
PUSH_MTHD(push, NV907D, HEAD_SET_CONTEXT_DMA_CRC(i), ctx ? ctx->ntfy.handle : 0);
return 0;
}
static u32 crc907d_get_entry(struct nv50_head *head,
struct nv50_crc_notifier_ctx *ctx,
enum nv50_crc_source source, int idx)
{
struct crc907d_notifier __iomem *notifier = ctx->mem.object.map.ptr;
return ioread32_native(¬ifier->entries[idx].output_crc[0]);
}
static bool crc907d_ctx_finished(struct nv50_head *head,
struct nv50_crc_notifier_ctx *ctx)
{
struct nouveau_drm *drm = nouveau_drm(head->base.base.dev);
struct crc907d_notifier __iomem *notifier = ctx->mem.object.map.ptr;
const u32 status = ioread32_native(¬ifier->status);
const u32 overflow = status & 0x0000003e;
if (!(status & 0x00000001))
return false;
if (overflow) {
const char *engine = NULL;
switch (overflow) {
case 0x00000004: engine = "DSI"; break;
case 0x00000008: engine = "Compositor"; break;
case 0x00000010: engine = "CRC output 1"; break;
case 0x00000020: engine = "CRC output 2"; break;
}
if (engine)
NV_ERROR(drm,
"CRC notifier context for head %d overflowed on %s: %x\n",
head->base.index, engine, status);
else
NV_ERROR(drm,
"CRC notifier context for head %d overflowed: %x\n",
head->base.index, status);
}
NV_DEBUG(drm, "Head %d CRC context status: %x\n",
head->base.index, status);
return true;
}
const struct nv50_crc_func crc907d = {
.set_src = crc907d_set_src,
.set_ctx = crc907d_set_ctx,
.get_entry = crc907d_get_entry,
.ctx_finished = crc907d_ctx_finished,
.flip_threshold = CRC907D_MAX_ENTRIES - 10,
.num_entries = CRC907D_MAX_ENTRIES,
.notifier_len = sizeof(struct crc907d_notifier),
};
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