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drm/nvd0/disp: initial attempt at modeset irq handling

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-07-07 10:47:10 +10:00
parent b6d8e7ec38
commit 3a89cd0292
1 changed files with 130 additions and 0 deletions
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130
drivers/gpu/drm/nouveau/nvd0_display.c
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@ -32,6 +32,7 @@
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include "nouveau_fb.h"
#include "nv50_display.h"
#define MEM_SYNC 0xe0000001
#define MEM_VRAM 0xe0010000
@ -43,6 +44,13 @@ struct nvd0_display {
dma_addr_t handle;
u32 *ptr;
} evo[1];
struct {
struct dcb_entry *dis;
struct dcb_entry *ena;
int crtc;
int pclk;
u16 script;
} irq;
};
static struct nvd0_display *
@ -856,12 +864,82 @@ nvd0_sor_create(struct drm_connector *connector, struct dcb_entry *dcbe)
/******************************************************************************
* IRQ
*****************************************************************************/
static struct dcb_entry *
lookup_dcb(struct drm_device *dev, int id, u32 mc)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
int type, or, i;
if (id < 4) {
type = OUTPUT_ANALOG;
or = id;
} else {
type = OUTPUT_TMDS;
or = id - 4;
}
for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {
struct dcb_entry *dcb = &dev_priv->vbios.dcb.entry[i];
if (dcb->type == type && (dcb->or & (1 << or)))
return dcb;
}
NV_INFO(dev, "PDISP: DCB for %d/0x%08x not found\n", id, mc);
return NULL;
}
static void
nvd0_display_unk1_handler(struct drm_device *dev)
{
struct nvd0_display *disp = nvd0_display(dev);
struct dcb_entry *dcb;
u32 unkn, crtc = 0;
int i;
NV_INFO(dev, "PDISP: 1 0x%08x 0x%08x 0x%08x\n", nv_rd32(dev, 0x6101d0),
nv_rd32(dev, 0x6101d4), nv_rd32(dev, 0x6109d4));
unkn = nv_rd32(dev, 0x6101d4);
if (!unkn) {
unkn = nv_rd32(dev, 0x6109d4);
crtc = 1;
}
disp->irq.ena = NULL;
disp->irq.dis = NULL;
disp->irq.crtc = crtc;
disp->irq.pclk = nv_rd32(dev, 0x660450 + (disp->irq.crtc * 0x300));
disp->irq.pclk /= 1000;
for (i = 0; i < 8; i++) {
u32 mcc = nv_rd32(dev, 0x640180 + (i * 0x20));
u32 mcp = nv_rd32(dev, 0x660180 + (i * 0x20));
if (mcc & (1 << crtc))
disp->irq.dis = lookup_dcb(dev, i, mcc);
if (mcp & (1 << crtc)) {
disp->irq.ena = lookup_dcb(dev, i, mcp);
switch (disp->irq.ena->type) {
case OUTPUT_ANALOG:
disp->irq.script = 0x00ff;
break;
case OUTPUT_TMDS:
disp->irq.script = (mcp & 0x00000f00) >> 8;
if (disp->irq.pclk >= 165000)
disp->irq.script |= 0x0100;
break;
default:
disp->irq.script = 0xbeef;
break;
}
}
}
dcb = disp->irq.dis;
if (dcb)
nouveau_bios_run_display_table(dev, 0x0000, -1, dcb, crtc);
nv_wr32(dev, 0x6101d4, 0x00000000);
nv_wr32(dev, 0x6109d4, 0x00000000);
nv_wr32(dev, 0x6101d0, 0x80000000);
@ -870,9 +948,48 @@ nvd0_display_unk1_handler(struct drm_device *dev)
static void
nvd0_display_unk2_handler(struct drm_device *dev)
{
struct nvd0_display *disp = nvd0_display(dev);
struct dcb_entry *dcb;
int crtc = disp->irq.crtc;
int pclk = disp->irq.pclk;
int or;
u32 tmp;
NV_INFO(dev, "PDISP: 2 0x%08x 0x%08x 0x%08x\n", nv_rd32(dev, 0x6101d0),
nv_rd32(dev, 0x6101d4), nv_rd32(dev, 0x6109d4));
dcb = disp->irq.dis;
disp->irq.dis = NULL;
if (dcb)
nouveau_bios_run_display_table(dev, 0x0000, -2, dcb, crtc);
nv50_crtc_set_clock(dev, crtc, pclk);
dcb = disp->irq.ena;
if (!dcb)
goto ack;
or = ffs(dcb->or) - 1;
nouveau_bios_run_display_table(dev, disp->irq.script, pclk, dcb, crtc);
nv_wr32(dev, 0x612200 + (crtc * 0x800), 0x00000000);
switch (dcb->type) {
case OUTPUT_ANALOG:
nv_wr32(dev, 0x612280 + (or * 0x800), 0x00000000);
break;
case OUTPUT_TMDS:
if (disp->irq.pclk >= 165000)
tmp = 0x00000101;
else
tmp = 0x00000000;
nv_mask(dev, 0x612300 + (or * 0x800), 0x00000707, tmp);
break;
default:
break;
}
ack:
nv_wr32(dev, 0x6101d4, 0x00000000);
nv_wr32(dev, 0x6109d4, 0x00000000);
nv_wr32(dev, 0x6101d0, 0x80000000);
@ -881,9 +998,22 @@ nvd0_display_unk2_handler(struct drm_device *dev)
static void
nvd0_display_unk4_handler(struct drm_device *dev)
{
struct nvd0_display *disp = nvd0_display(dev);
struct dcb_entry *dcb;
int crtc = disp->irq.crtc;
int pclk = disp->irq.pclk;
NV_INFO(dev, "PDISP: 4 0x%08x 0x%08x 0x%08x\n", nv_rd32(dev, 0x6101d0),
nv_rd32(dev, 0x6101d4), nv_rd32(dev, 0x6109d4));
dcb = disp->irq.ena;
disp->irq.ena = NULL;
if (!dcb)
goto ack;
nouveau_bios_run_display_table(dev, disp->irq.script, pclk, dcb, crtc);
ack:
nv_wr32(dev, 0x6101d4, 0x00000000);
nv_wr32(dev, 0x6109d4, 0x00000000);
nv_wr32(dev, 0x6101d0, 0x80000000);