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rs690/r500: vblank support. 

The new display controller has the vblank interrupts in a different place.

Add support for vbl interrupts for these chips
main
Dave Airlie 2008-05-21 20:14:45 +10:00
parent 8399656106
commit 91c6c4b240
2 changed files with 177 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
shared-core/radeon_drv.h
View File

@ -296,6 +296,7 @@ typedef struct drm_radeon_private {
int vblank_crtc;
uint32_t irq_enable_reg;
int irq_enabled;
uint32_t r500_disp_irq_reg;
struct radeon_surface surfaces[RADEON_MAX_SURFACES];
struct radeon_virt_surface virt_surfaces[2 * RADEON_MAX_SURFACES];
@ -620,6 +621,8 @@ extern int r300_do_cp_cmdbuf(struct drm_device *dev,
# define RADEON_SW_INT_TEST (1 << 25)
# define RADEON_SW_INT_TEST_ACK (1 << 25)
# define RADEON_SW_INT_FIRE (1 << 26)
# define R500_DISPLAY_INT_STATUS (1 << 0)
#define RADEON_HOST_PATH_CNTL 0x0130
# define RADEON_HDP_SOFT_RESET (1 << 26)
@ -1139,7 +1142,30 @@ extern int r300_do_cp_cmdbuf(struct drm_device *dev,
#define RADEON_VHA_BACKFRAME0_OFF_V_2 0x1894
#define RADEON_VHA_BACKFRAME1_OFF_PITCH_V_2 0x1898
#define R500_D1CRTC_STATUS 0x609c
#define R500_D2CRTC_STATUS 0x689c
#define R500_CRTC_V_BLANK (1<<0)
#define R500_D1CRTC_FRAME_COUNT 0x60a4
#define R500_D2CRTC_FRAME_COUNT 0x68a4
#define R500_D1MODE_V_COUNTER 0x6530
#define R500_D2MODE_V_COUNTER 0x6d30
#define R500_D1MODE_VBLANK_STATUS 0x6534
#define R500_D2MODE_VBLANK_STATUS 0x6d34
#define R500_VBLANK_OCCURED (1<<0)
#define R500_VBLANK_ACK (1<<4)
#define R500_VBLANK_STAT (1<<12)
#define R500_VBLANK_INT (1<<16)
#define R500_DxMODE_INT_MASK 0x6540
#define R500_D1MODE_INT_MASK (1<<0)
#define R500_D2MODE_INT_MASK (1<<8)
#define R500_DISP_INTERRUPT_STATUS 0x7edc
#define R500_D1_VBLANK_INTERRUPT (1 << 4)
#define R500_D2_VBLANK_INTERRUPT (1 << 5)
/* Constants */
#define RADEON_MAX_USEC_TIMEOUT 100000 /* 100 ms */

120
shared-core/radeon_irq.c
View File

@ -47,8 +47,36 @@ static void radeon_irq_set_state(struct drm_device *dev, u32 mask, int state)
RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
}
static void r500_vbl_irq_set_state(struct drm_device *dev, u32 mask, int state)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
if (state)
dev_priv->r500_disp_irq_reg |= mask;
else
dev_priv->r500_disp_irq_reg &= ~mask;
RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
}
int radeon_enable_vblank(struct drm_device *dev, int crtc)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
switch (crtc) {
case 0:
r500_vbl_irq_set_state(dev, R500_D1MODE_INT_MASK, 1);
break;
case 1:
r500_vbl_irq_set_state(dev, R500_D2MODE_INT_MASK, 1);
break;
default:
DRM_ERROR("tried to enable vblank on non-existent crtc %d\n",
crtc);
return EINVAL;
}
} else {
switch (crtc) {
case 0:
radeon_irq_set_state(dev, RADEON_CRTC_VBLANK_MASK, 1);
@ -61,12 +89,29 @@ int radeon_enable_vblank(struct drm_device *dev, int crtc)
crtc);
return EINVAL;
}
}
return 0;
}
void radeon_disable_vblank(struct drm_device *dev, int crtc)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
switch (crtc) {
case 0:
r500_vbl_irq_set_state(dev, R500_D1MODE_INT_MASK, 0);
break;
case 1:
r500_vbl_irq_set_state(dev, R500_D2MODE_INT_MASK, 0);
break;
default:
DRM_ERROR("tried to enable vblank on non-existent crtc %d\n",
crtc);
break;
}
} else {
switch (crtc) {
case 0:
radeon_irq_set_state(dev, RADEON_CRTC_VBLANK_MASK, 0);
@ -80,12 +125,36 @@ void radeon_disable_vblank(struct drm_device *dev, int crtc)
break;
}
}
}
static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv)
static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv, u32 *r500_disp_int)
{
u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) &
(RADEON_SW_INT_TEST | RADEON_CRTC_VBLANK_STAT |
RADEON_CRTC2_VBLANK_STAT);
u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS);
u32 irq_mask = RADEON_SW_INT_TEST;
*r500_disp_int = 0;
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
/* vbl interrupts in a different place */
if (irqs & R500_DISPLAY_INT_STATUS) {
/* if a display interrupt */
u32 disp_irq;
disp_irq = RADEON_READ(R500_DISP_INTERRUPT_STATUS);
*r500_disp_int = disp_irq;
if (disp_irq & R500_D1_VBLANK_INTERRUPT) {
RADEON_WRITE(R500_D1MODE_VBLANK_STATUS, R500_VBLANK_ACK);
}
if (disp_irq & R500_D2_VBLANK_INTERRUPT) {
RADEON_WRITE(R500_D2MODE_VBLANK_STATUS, R500_VBLANK_ACK);
}
}
irq_mask |= R500_DISPLAY_INT_STATUS;
} else
irq_mask |= RADEON_CRTC_VBLANK_STAT | RADEON_CRTC2_VBLANK_STAT;
irqs &= irq_mask;
if (irqs)
RADEON_WRITE(RADEON_GEN_INT_STATUS, irqs);
@ -117,11 +186,12 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
drm_radeon_private_t *dev_priv =
(drm_radeon_private_t *) dev->dev_private;
u32 stat;
u32 r500_disp_int;
/* Only consider the bits we're interested in - others could be used
* outside the DRM
*/
stat = radeon_acknowledge_irqs(dev_priv);
stat = radeon_acknowledge_irqs(dev_priv, &r500_disp_int);
if (!stat)
return IRQ_NONE;
@ -132,11 +202,17 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
DRM_WAKEUP(&dev_priv->swi_queue);
/* VBLANK interrupt */
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
if (r500_disp_int & R500_D1_VBLANK_INTERRUPT)
drm_handle_vblank(dev, 0);
if (r500_disp_int & R500_D2_VBLANK_INTERRUPT)
drm_handle_vblank(dev, 1);
} else {
if (stat & RADEON_CRTC_VBLANK_STAT)
drm_handle_vblank(dev, 0);
if (stat & RADEON_CRTC2_VBLANK_STAT)
drm_handle_vblank(dev, 1);
}
return IRQ_HANDLED;
}
@ -185,6 +261,18 @@ u32 radeon_get_vblank_counter(struct drm_device *dev, int crtc)
return -EINVAL;
}
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
if (crtc == 0) {
crtc_cnt_reg = R500_D1CRTC_FRAME_COUNT;
crtc_status_reg = R500_D1CRTC_STATUS;
} else if (crtc == 1) {
crtc_cnt_reg = R500_D2CRTC_FRAME_COUNT;
crtc_status_reg = R500_D2CRTC_STATUS;
} else
return -EINVAL;
return RADEON_READ(crtc_cnt_reg) + (RADEON_READ(crtc_status_reg) & 1);
} else {
if (crtc == 0) {
crtc_cnt_reg = RADEON_CRTC_CRNT_FRAME;
crtc_status_reg = RADEON_CRTC_STATUS;
@ -194,9 +282,9 @@ u32 radeon_get_vblank_counter(struct drm_device *dev, int crtc)
} else {
return -EINVAL;
}
return RADEON_READ(crtc_cnt_reg) + (RADEON_READ(crtc_status_reg) & 1);
}
}
/* Needs the lock as it touches the ring.
*/
@ -244,12 +332,15 @@ void radeon_driver_irq_preinstall(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv =
(drm_radeon_private_t *) dev->dev_private;
u32 dummy;
/* Disable *all* interrupts */
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
/* Clear bits if they're already high */
radeon_acknowledge_irqs(dev_priv);
radeon_acknowledge_irqs(dev_priv, &dummy);
}
int radeon_driver_irq_postinstall(struct drm_device * dev)
@ -281,6 +372,8 @@ void radeon_driver_irq_uninstall(struct drm_device * dev)
dev_priv->irq_enabled = 0;
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
/* Disable *all* interrupts */
RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
}
@ -292,14 +385,23 @@ int radeon_vblank_crtc_get(struct drm_device *dev)
u32 flag;
u32 value;
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
flag = RADEON_READ(R500_DxMODE_INT_MASK);
value = 0;
if (flag & R500_D1MODE_INT_MASK)
value |= DRM_RADEON_VBLANK_CRTC1;
if (flag & R500_D2MODE_INT_MASK)
value |= DRM_RADEON_VBLANK_CRTC2;
} else {
flag = RADEON_READ(RADEON_GEN_INT_CNTL);
value = 0;
if (flag & RADEON_CRTC_VBLANK_MASK)
value |= DRM_RADEON_VBLANK_CRTC1;
if (flag & RADEON_CRTC2_VBLANK_MASK)
value |= DRM_RADEON_VBLANK_CRTC2;
}
return value;
}