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authorLinus Torvalds <torvalds@linux-foundation.org>2011-09-29 19:23:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-09-29 19:23:30 -0700
commit8e8e500fcadaf2e39f4f119ae60c289456527727 (patch)
tree146c5d99f4ad1afe7d609600991a7d77cce81e22
parent16fa42affd484bb500533a7e78e0c72687eddd58 (diff)
parentcd0de039bff32ee314046c0e4c047c38aa696f84 (diff)
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux
* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: drm/i915: FBC off for ironlake and older, otherwise on by default drm/i915: Enable SDVO hotplug interrupts for HDMI and DVI drm/i915: Enable dither whenever display bpc < frame buffer bpc
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c4
-rw-r--r--drivers/gpu/drm/i915/intel_display.c22
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h3
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c88
4 files changed, 47 insertions, 70 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ce045a8cf82c..f07e4252b708 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -67,11 +67,11 @@ module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600);
MODULE_PARM_DESC(i915_enable_rc6,
"Enable power-saving render C-state 6 (default: true)");
-unsigned int i915_enable_fbc __read_mostly = 1;
+unsigned int i915_enable_fbc __read_mostly = -1;
module_param_named(i915_enable_fbc, i915_enable_fbc, int, 0600);
MODULE_PARM_DESC(i915_enable_fbc,
"Enable frame buffer compression for power savings "
- "(default: false)");
+ "(default: -1 (use per-chip default))");
unsigned int i915_lvds_downclock __read_mostly = 0;
module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 56a8554d9039..04411ad2e779 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1799,6 +1799,7 @@ static void intel_update_fbc(struct drm_device *dev)
struct drm_framebuffer *fb;
struct intel_framebuffer *intel_fb;
struct drm_i915_gem_object *obj;
+ int enable_fbc;
DRM_DEBUG_KMS("\n");
@@ -1839,8 +1840,15 @@ static void intel_update_fbc(struct drm_device *dev)
intel_fb = to_intel_framebuffer(fb);
obj = intel_fb->obj;
- if (!i915_enable_fbc) {
- DRM_DEBUG_KMS("fbc disabled per module param (default off)\n");
+ enable_fbc = i915_enable_fbc;
+ if (enable_fbc < 0) {
+ DRM_DEBUG_KMS("fbc set to per-chip default\n");
+ enable_fbc = 1;
+ if (INTEL_INFO(dev)->gen <= 5)
+ enable_fbc = 0;
+ }
+ if (!enable_fbc) {
+ DRM_DEBUG_KMS("fbc disabled per module param\n");
dev_priv->no_fbc_reason = FBC_MODULE_PARAM;
goto out_disable;
}
@@ -4687,13 +4695,13 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
bpc = 6; /* min is 18bpp */
break;
case 24:
- bpc = min((unsigned int)8, display_bpc);
+ bpc = 8;
break;
case 30:
- bpc = min((unsigned int)10, display_bpc);
+ bpc = 10;
break;
case 48:
- bpc = min((unsigned int)12, display_bpc);
+ bpc = 12;
break;
default:
DRM_DEBUG("unsupported depth, assuming 24 bits\n");
@@ -4701,10 +4709,12 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
break;
}
+ display_bpc = min(display_bpc, bpc);
+
DRM_DEBUG_DRIVER("setting pipe bpc to %d (max display bpc %d)\n",
bpc, display_bpc);
- *pipe_bpp = bpc * 3;
+ *pipe_bpp = display_bpc * 3;
return display_bpc != bpc;
}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 0b2ee9d39980..fe1099d8817e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -337,9 +337,6 @@ extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
struct drm_connector *connector,
struct intel_load_detect_pipe *old);
-extern struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB);
-extern int intel_sdvo_supports_hotplug(struct drm_connector *connector);
-extern void intel_sdvo_set_hotplug(struct drm_connector *connector, int enable);
extern void intelfb_restore(void);
extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 30fe554d8936..6348c499616f 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -92,6 +92,11 @@ struct intel_sdvo {
*/
uint16_t attached_output;
+ /*
+ * Hotplug activation bits for this device
+ */
+ uint8_t hotplug_active[2];
+
/**
* This is used to select the color range of RBG outputs in HDMI mode.
* It is only valid when using TMDS encoding and 8 bit per color mode.
@@ -1208,74 +1213,20 @@ static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct in
return true;
}
-/* No use! */
-#if 0
-struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB)
-{
- struct drm_connector *connector = NULL;
- struct intel_sdvo *iout = NULL;
- struct intel_sdvo *sdvo;
-
- /* find the sdvo connector */
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
- iout = to_intel_sdvo(connector);
-
- if (iout->type != INTEL_OUTPUT_SDVO)
- continue;
-
- sdvo = iout->dev_priv;
-
- if (sdvo->sdvo_reg == SDVOB && sdvoB)
- return connector;
-
- if (sdvo->sdvo_reg == SDVOC && !sdvoB)
- return connector;
-
- }
-
- return NULL;
-}
-
-int intel_sdvo_supports_hotplug(struct drm_connector *connector)
+static int intel_sdvo_supports_hotplug(struct intel_sdvo *intel_sdvo)
{
u8 response[2];
- u8 status;
- struct intel_sdvo *intel_sdvo;
- DRM_DEBUG_KMS("\n");
-
- if (!connector)
- return 0;
-
- intel_sdvo = to_intel_sdvo(connector);
return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
&response, 2) && response[0];
}
-void intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
+static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
{
- u8 response[2];
- u8 status;
- struct intel_sdvo *intel_sdvo = to_intel_sdvo(connector);
-
- intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
- intel_sdvo_read_response(intel_sdvo, &response, 2);
-
- if (on) {
- intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
- status = intel_sdvo_read_response(intel_sdvo, &response, 2);
-
- intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
- } else {
- response[0] = 0;
- response[1] = 0;
- intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
- }
+ struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
- intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
- intel_sdvo_read_response(intel_sdvo, &response, 2);
+ intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &intel_sdvo->hotplug_active, 2);
}
-#endif
static bool
intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
@@ -2045,6 +1996,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
{
struct drm_encoder *encoder = &intel_sdvo->base.base;
struct drm_connector *connector;
+ struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
struct intel_connector *intel_connector;
struct intel_sdvo_connector *intel_sdvo_connector;
@@ -2062,7 +2014,17 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
intel_connector = &intel_sdvo_connector->base;
connector = &intel_connector->base;
- connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
+ if (intel_sdvo_supports_hotplug(intel_sdvo) & (1 << device)) {
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
+ intel_sdvo->hotplug_active[0] |= 1 << device;
+ /* Some SDVO devices have one-shot hotplug interrupts.
+ * Ensure that they get re-enabled when an interrupt happens.
+ */
+ intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
+ intel_sdvo_enable_hotplug(intel_encoder);
+ }
+ else
+ connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
connector->connector_type = DRM_MODE_CONNECTOR_DVID;
@@ -2569,6 +2531,14 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
goto err;
+ /* Set up hotplug command - note paranoia about contents of reply.
+ * We assume that the hardware is in a sane state, and only touch
+ * the bits we think we understand.
+ */
+ intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG,
+ &intel_sdvo->hotplug_active, 2);
+ intel_sdvo->hotplug_active[0] &= ~0x3;
+
if (intel_sdvo_output_setup(intel_sdvo,
intel_sdvo->caps.output_flags) != true) {
DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",