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Merge remote branch 'intel/drm-intel-fixes' of /ssd/git/drm-next into drm-fixes

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* 'intel/drm-intel-fixes' of /ssd/git/drm-next:
  drm/i915/bios: Reverse order of 100/120 Mhz SSC clocks
  agp/intel: Fix missed cached memory flags setting in i965_write_entry()
  drm/i915/sdvo: Only use the SDVO pin if it is in the valid range
  drm/i915/ringbuffer: Handle wrapping of the autoreported HEAD
  drm/i915/dp: Fix I2C/EDID handling with active DisplayPort to DVI converter
This commit is contained in:
Dave Airlie 2010-12-16 10:03:47 +10:00
commit 044102798d
6 changed files with 57 additions and 26 deletions
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11
drivers/char/agp/intel-gtt.c
View File

@ -1192,12 +1192,19 @@ static void i9xx_chipset_flush(void)
writel(1, intel_private.i9xx_flush_page);
}
static void i965_write_entry(dma_addr_t addr, unsigned int entry,
static void i965_write_entry(dma_addr_t addr,
unsigned int entry,
unsigned int flags)
{
u32 pte_flags;
pte_flags = I810_PTE_VALID;
if (flags == AGP_USER_CACHED_MEMORY)
pte_flags |= I830_PTE_SYSTEM_CACHED;
/* Shift high bits down */
addr |= (addr >> 28) & 0xf0;
writel(addr | I810_PTE_VALID, intel_private.gtt + entry);
writel(addr | pte_flags, intel_private.gtt + entry);
}
static bool gen6_check_flags(unsigned int flags)

2
drivers/gpu/drm/i915/intel_bios.c
View File

@ -270,7 +270,7 @@ parse_general_features(struct drm_i915_private *dev_priv,
general->ssc_freq ? 66 : 48;
else if (IS_GEN5(dev) || IS_GEN6(dev))
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 100 : 120;
general->ssc_freq ? 120 : 100;
else
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 100 : 96;

37
drivers/gpu/drm/i915/intel_dp.c
View File

@ -479,6 +479,7 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
uint16_t address = algo_data->address;
uint8_t msg[5];
uint8_t reply[2];
unsigned retry;
int msg_bytes;
int reply_bytes;
int ret;
@ -513,14 +514,33 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
break;
}
for (;;) {
ret = intel_dp_aux_ch(intel_dp,
msg, msg_bytes,
reply, reply_bytes);
for (retry = 0; retry < 5; retry++) {
ret = intel_dp_aux_ch(intel_dp,
msg, msg_bytes,
reply, reply_bytes);
if (ret < 0) {
DRM_DEBUG_KMS("aux_ch failed %d\n", ret);
return ret;
}
switch (reply[0] & AUX_NATIVE_REPLY_MASK) {
case AUX_NATIVE_REPLY_ACK:
/* I2C-over-AUX Reply field is only valid
* when paired with AUX ACK.
*/
break;
case AUX_NATIVE_REPLY_NACK:
DRM_DEBUG_KMS("aux_ch native nack\n");
return -EREMOTEIO;
case AUX_NATIVE_REPLY_DEFER:
udelay(100);
continue;
default:
DRM_ERROR("aux_ch invalid native reply 0x%02x\n",
reply[0]);
return -EREMOTEIO;
}
switch (reply[0] & AUX_I2C_REPLY_MASK) {
case AUX_I2C_REPLY_ACK:
if (mode == MODE_I2C_READ) {
@ -528,17 +548,20 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
}
return reply_bytes - 1;
case AUX_I2C_REPLY_NACK:
DRM_DEBUG_KMS("aux_ch nack\n");
DRM_DEBUG_KMS("aux_i2c nack\n");
return -EREMOTEIO;
case AUX_I2C_REPLY_DEFER:
DRM_DEBUG_KMS("aux_ch defer\n");
DRM_DEBUG_KMS("aux_i2c defer\n");
udelay(100);
break;
default:
DRM_ERROR("aux_ch invalid reply 0x%02x\n", reply[0]);
DRM_ERROR("aux_i2c invalid reply 0x%02x\n", reply[0]);
return -EREMOTEIO;
}
}
DRM_ERROR("too many retries, giving up\n");
return -EREMOTEIO;
}
static int

19
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@ -696,20 +696,17 @@ int intel_wait_ring_buffer(struct drm_device *dev,
drm_i915_private_t *dev_priv = dev->dev_private;
u32 head;
head = intel_read_status_page(ring, 4);
if (head) {
ring->head = head & HEAD_ADDR;
ring->space = ring->head - (ring->tail + 8);
if (ring->space < 0)
ring->space += ring->size;
if (ring->space >= n)
return 0;
}
trace_i915_ring_wait_begin (dev);
end = jiffies + 3 * HZ;
do {
ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
/* If the reported head position has wrapped or hasn't advanced,
* fallback to the slow and accurate path.
*/
head = intel_read_status_page(ring, 4);
if (head < ring->actual_head)
head = I915_READ_HEAD(ring);
ring->actual_head = head;
ring->head = head & HEAD_ADDR;
ring->space = ring->head - (ring->tail + 8);
if (ring->space < 0)
ring->space += ring->size;

5
drivers/gpu/drm/i915/intel_ringbuffer.h
View File

@ -30,8 +30,9 @@ struct intel_ring_buffer {
struct drm_device *dev;
struct drm_gem_object *gem_object;
unsigned int head;
unsigned int tail;
u32 actual_head;
u32 head;
u32 tail;
int space;
struct intel_hw_status_page status_page;

9
drivers/gpu/drm/i915/intel_sdvo.c
View File

@ -1908,9 +1908,12 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
speed = mapping->i2c_speed;
}
sdvo->i2c = &dev_priv->gmbus[pin].adapter;
intel_gmbus_set_speed(sdvo->i2c, speed);
intel_gmbus_force_bit(sdvo->i2c, true);
if (pin < GMBUS_NUM_PORTS) {
sdvo->i2c = &dev_priv->gmbus[pin].adapter;
intel_gmbus_set_speed(sdvo->i2c, speed);
intel_gmbus_force_bit(sdvo->i2c, true);
} else
sdvo->i2c = &dev_priv->gmbus[GMBUS_PORT_DPB].adapter;
}
static bool