diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/dispnv50/crc907d.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/crc907d.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc907d.c b/drivers/gpu/drm/nouveau/dispnv50/crc907d.c new file mode 100644 index 000000000000..92e907de7645 --- /dev/null +++ b/drivers/gpu/drm/nouveau/dispnv50/crc907d.c @@ -0,0 +1,139 @@ +// SPDX-License-Identifier: MIT +#include <drm/drm_crtc.h> + +#include "crc.h" +#include "core.h" +#include "disp.h" +#include "head.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 void +crc907d_set_src(struct nv50_head *head, int or, + enum nv50_crc_source_type source, + struct nv50_crc_notifier_ctx *ctx, u32 wndw) +{ + struct drm_crtc *crtc = &head->base.base; + struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan; + const u32 hoff = head->base.index * 0x300; + u32 *push; + u32 crc_args = 0xfff00000; + + switch (source) { + case NV50_CRC_SOURCE_TYPE_SOR: + crc_args |= (0x00000f0f + or * 16) << 8; + break; + case NV50_CRC_SOURCE_TYPE_PIOR: + crc_args |= (0x000000ff + or * 256) << 8; + break; + case NV50_CRC_SOURCE_TYPE_DAC: + crc_args |= (0x00000ff0 + or) << 8; + break; + case NV50_CRC_SOURCE_TYPE_RG: + crc_args |= (0x00000ff8 + drm_crtc_index(crtc)) << 8; + break; + case NV50_CRC_SOURCE_TYPE_SF: + crc_args |= (0x00000f8f + drm_crtc_index(crtc) * 16) << 8; + break; + case NV50_CRC_SOURCE_NONE: + crc_args |= 0x000fff00; + break; + } + + push = evo_wait(core, 4); + if (!push) + return; + + if (source) { + evo_mthd(push, 0x0438 + hoff, 1); + evo_data(push, ctx->ntfy.handle); + evo_mthd(push, 0x0430 + hoff, 1); + evo_data(push, crc_args); + } else { + evo_mthd(push, 0x0430 + hoff, 1); + evo_data(push, crc_args); + evo_mthd(push, 0x0438 + hoff, 1); + evo_data(push, 0); + } + evo_kick(push, core); +} + +static void crc907d_set_ctx(struct nv50_head *head, + struct nv50_crc_notifier_ctx *ctx) +{ + struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan; + u32 *push = evo_wait(core, 2); + + if (!push) + return; + + evo_mthd(push, 0x0438 + (head->base.index * 0x300), 1); + evo_data(push, ctx ? ctx->ntfy.handle : 0); + evo_kick(push, core); +} + +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), +}; |