diff --git a/[refs] b/[refs] index 96b75ec922ae..ebf570e0fad1 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 027c0a6af42efa4f2f6034421349bd26a3ca4923 +refs/heads/master: 1dc1d2e9485074d5f495beb7771a3ab20eb504e9 diff --git a/trunk/Documentation/DMA-attributes.txt b/trunk/Documentation/DMA-attributes.txt index f50309081ac7..e59480db9ee0 100644 --- a/trunk/Documentation/DMA-attributes.txt +++ b/trunk/Documentation/DMA-attributes.txt @@ -91,3 +91,12 @@ transferred to 'device' domain. This attribute can be also used for dma_unmap_{single,page,sg} functions family to force buffer to stay in device domain after releasing a mapping for it. Use this attribute with care! + +DMA_ATTR_FORCE_CONTIGUOUS +------------------------- + +By default DMA-mapping subsystem is allowed to assemble the buffer +allocated by dma_alloc_attrs() function from individual pages if it can +be mapped as contiguous chunk into device dma address space. By +specifing this attribute the allocated buffer is forced to be contiguous +also in physical memory. diff --git a/trunk/Documentation/DocBook/drm.tmpl b/trunk/Documentation/DocBook/drm.tmpl index b0300529ab13..4ee2304f82f9 100644 --- a/trunk/Documentation/DocBook/drm.tmpl +++ b/trunk/Documentation/DocBook/drm.tmpl @@ -1141,23 +1141,13 @@ int max_width, max_height; the page_flip operation will be called with a non-NULL event argument pointing to a drm_pending_vblank_event instance. Upon page - flip completion the driver must fill the - event::event - sequence, tv_sec - and tv_usec fields with the associated - vertical blanking count and timestamp, add the event to the - drm_file list of events to be signaled, and wake - up any waiting process. This can be performed with + flip completion the driver must call drm_send_vblank_event + to fill in the event and send to wake up any waiting processes. + This can be performed with event.sequence = drm_vblank_count_and_time(..., &now); - event->event.tv_sec = now.tv_sec; - event->event.tv_usec = now.tv_usec; - spin_lock_irqsave(&dev->event_lock, flags); - list_add_tail(&event->base.link, &event->base.file_priv->event_list); - wake_up_interruptible(&event->base.file_priv->event_wait); + ... + drm_send_vblank_event(dev, pipe, event); spin_unlock_irqrestore(&dev->event_lock, flags); ]]> @@ -1621,10 +1611,10 @@ void intel_crt_init(struct drm_device *dev) - + - Mid-layer Helper Functions + Mode Setting Helper Functions The CRTC, encoder and connector functions provided by the drivers implement the DRM API. They're called by the DRM core and ioctl handlers @@ -2106,6 +2096,21 @@ void intel_crt_init(struct drm_device *dev) + + Modeset Helper Functions Reference +!Edrivers/gpu/drm/drm_crtc_helper.c + + + fbdev Helper Functions Reference +!Pdrivers/gpu/drm/drm_fb_helper.c fbdev helpers +!Edrivers/gpu/drm/drm_fb_helper.c + + + Display Port Helper Functions Reference +!Pdrivers/gpu/drm/drm_dp_helper.c dp helpers +!Iinclude/drm/drm_dp_helper.h +!Edrivers/gpu/drm/drm_dp_helper.c + diff --git a/trunk/Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt b/trunk/Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt new file mode 100644 index 000000000000..b4fa934ae3a2 --- /dev/null +++ b/trunk/Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt @@ -0,0 +1,191 @@ +NVIDIA Tegra host1x + +Required properties: +- compatible: "nvidia,tegra-host1x" +- reg: Physical base address and length of the controller's registers. +- interrupts: The interrupt outputs from the controller. +- #address-cells: The number of cells used to represent physical base addresses + in the host1x address space. Should be 1. +- #size-cells: The number of cells used to represent the size of an address + range in the host1x address space. Should be 1. +- ranges: The mapping of the host1x address space to the CPU address space. + +The host1x top-level node defines a number of children, each representing one +of the following host1x client modules: + +- mpe: video encoder + + Required properties: + - compatible: "nvidia,tegra-mpe" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + +- vi: video input + + Required properties: + - compatible: "nvidia,tegra-vi" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + +- epp: encoder pre-processor + + Required properties: + - compatible: "nvidia,tegra-epp" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + +- isp: image signal processor + + Required properties: + - compatible: "nvidia,tegra-isp" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + +- gr2d: 2D graphics engine + + Required properties: + - compatible: "nvidia,tegra-gr2d" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + +- gr3d: 3D graphics engine + + Required properties: + - compatible: "nvidia,tegra-gr3d" + - reg: Physical base address and length of the controller's registers. + +- dc: display controller + + Required properties: + - compatible: "nvidia,tegra-dc" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + + Each display controller node has a child node, named "rgb", that represents + the RGB output associated with the controller. It can take the following + optional properties: + - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing + - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection + - nvidia,edid: supplies a binary EDID blob + +- hdmi: High Definition Multimedia Interface + + Required properties: + - compatible: "nvidia,tegra-hdmi" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + - vdd-supply: regulator for supply voltage + - pll-supply: regulator for PLL + + Optional properties: + - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing + - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection + - nvidia,edid: supplies a binary EDID blob + +- tvo: TV encoder output + + Required properties: + - compatible: "nvidia,tegra-tvo" + - reg: Physical base address and length of the controller's registers. + - interrupts: The interrupt outputs from the controller. + +- dsi: display serial interface + + Required properties: + - compatible: "nvidia,tegra-dsi" + - reg: Physical base address and length of the controller's registers. + +Example: + +/ { + ... + + host1x { + compatible = "nvidia,tegra20-host1x", "simple-bus"; + reg = <0x50000000 0x00024000>; + interrupts = <0 65 0x04 /* mpcore syncpt */ + 0 67 0x04>; /* mpcore general */ + + #address-cells = <1>; + #size-cells = <1>; + + ranges = <0x54000000 0x54000000 0x04000000>; + + mpe { + compatible = "nvidia,tegra20-mpe"; + reg = <0x54040000 0x00040000>; + interrupts = <0 68 0x04>; + }; + + vi { + compatible = "nvidia,tegra20-vi"; + reg = <0x54080000 0x00040000>; + interrupts = <0 69 0x04>; + }; + + epp { + compatible = "nvidia,tegra20-epp"; + reg = <0x540c0000 0x00040000>; + interrupts = <0 70 0x04>; + }; + + isp { + compatible = "nvidia,tegra20-isp"; + reg = <0x54100000 0x00040000>; + interrupts = <0 71 0x04>; + }; + + gr2d { + compatible = "nvidia,tegra20-gr2d"; + reg = <0x54140000 0x00040000>; + interrupts = <0 72 0x04>; + }; + + gr3d { + compatible = "nvidia,tegra20-gr3d"; + reg = <0x54180000 0x00040000>; + }; + + dc@54200000 { + compatible = "nvidia,tegra20-dc"; + reg = <0x54200000 0x00040000>; + interrupts = <0 73 0x04>; + + rgb { + status = "disabled"; + }; + }; + + dc@54240000 { + compatible = "nvidia,tegra20-dc"; + reg = <0x54240000 0x00040000>; + interrupts = <0 74 0x04>; + + rgb { + status = "disabled"; + }; + }; + + hdmi { + compatible = "nvidia,tegra20-hdmi"; + reg = <0x54280000 0x00040000>; + interrupts = <0 75 0x04>; + status = "disabled"; + }; + + tvo { + compatible = "nvidia,tegra20-tvo"; + reg = <0x542c0000 0x00040000>; + interrupts = <0 76 0x04>; + status = "disabled"; + }; + + dsi { + compatible = "nvidia,tegra20-dsi"; + reg = <0x54300000 0x00040000>; + status = "disabled"; + }; + }; + + ... +}; diff --git a/trunk/Documentation/kref.txt b/trunk/Documentation/kref.txt index 48ba715d5a63..ddf85a5dde0c 100644 --- a/trunk/Documentation/kref.txt +++ b/trunk/Documentation/kref.txt @@ -213,3 +213,91 @@ presentation on krefs, which can be found at: and: http://www.kroah.com/linux/talks/ols_2004_kref_talk/ + +The above example could also be optimized using kref_get_unless_zero() in +the following way: + +static struct my_data *get_entry() +{ + struct my_data *entry = NULL; + mutex_lock(&mutex); + if (!list_empty(&q)) { + entry = container_of(q.next, struct my_data, link); + if (!kref_get_unless_zero(&entry->refcount)) + entry = NULL; + } + mutex_unlock(&mutex); + return entry; +} + +static void release_entry(struct kref *ref) +{ + struct my_data *entry = container_of(ref, struct my_data, refcount); + + mutex_lock(&mutex); + list_del(&entry->link); + mutex_unlock(&mutex); + kfree(entry); +} + +static void put_entry(struct my_data *entry) +{ + kref_put(&entry->refcount, release_entry); +} + +Which is useful to remove the mutex lock around kref_put() in put_entry(), but +it's important that kref_get_unless_zero is enclosed in the same critical +section that finds the entry in the lookup table, +otherwise kref_get_unless_zero may reference already freed memory. +Note that it is illegal to use kref_get_unless_zero without checking its +return value. If you are sure (by already having a valid pointer) that +kref_get_unless_zero() will return true, then use kref_get() instead. + +The function kref_get_unless_zero also makes it possible to use rcu +locking for lookups in the above example: + +struct my_data +{ + struct rcu_head rhead; + . + struct kref refcount; + . + . +}; + +static struct my_data *get_entry_rcu() +{ + struct my_data *entry = NULL; + rcu_read_lock(); + if (!list_empty(&q)) { + entry = container_of(q.next, struct my_data, link); + if (!kref_get_unless_zero(&entry->refcount)) + entry = NULL; + } + rcu_read_unlock(); + return entry; +} + +static void release_entry_rcu(struct kref *ref) +{ + struct my_data *entry = container_of(ref, struct my_data, refcount); + + mutex_lock(&mutex); + list_del_rcu(&entry->link); + mutex_unlock(&mutex); + kfree_rcu(entry, rhead); +} + +static void put_entry(struct my_data *entry) +{ + kref_put(&entry->refcount, release_entry_rcu); +} + +But note that the struct kref member needs to remain in valid memory for a +rcu grace period after release_entry_rcu was called. That can be accomplished +by using kfree_rcu(entry, rhead) as done above, or by calling synchronize_rcu() +before using kfree, but note that synchronize_rcu() may sleep for a +substantial amount of time. + + +Thomas Hellstrom diff --git a/trunk/MAINTAINERS b/trunk/MAINTAINERS index d9c31b906ac9..6892b26025ba 100644 --- a/trunk/MAINTAINERS +++ b/trunk/MAINTAINERS @@ -2549,6 +2549,15 @@ S: Supported F: drivers/gpu/drm/exynos F: include/drm/exynos* +DRM DRIVERS FOR NVIDIA TEGRA +M: Thierry Reding +L: dri-devel@lists.freedesktop.org +L: linux-tegra@vger.kernel.org +T: git git://gitorious.org/thierryreding/linux.git +S: Maintained +F: drivers/gpu/drm/tegra/ +F: Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt + DSCC4 DRIVER M: Francois Romieu L: netdev@vger.kernel.org diff --git a/trunk/arch/arm/boot/dts/Makefile b/trunk/arch/arm/boot/dts/Makefile index 0f441740c22a..d077ef8426df 100644 --- a/trunk/arch/arm/boot/dts/Makefile +++ b/trunk/arch/arm/boot/dts/Makefile @@ -107,6 +107,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \ omap3-evm.dtb \ omap3-tobi.dtb \ omap4-panda.dtb \ + omap4-panda-a4.dtb \ omap4-panda-es.dtb \ omap4-var-som.dtb \ omap4-sdp.dtb \ @@ -131,8 +132,8 @@ dtb-$(CONFIG_ARCH_SPEAR3XX)+= spear300-evb.dtb \ spear320-evb.dtb \ spear320-hmi.dtb dtb-$(CONFIG_ARCH_SPEAR6XX)+= spear600-evb.dtb -dtb-$(CONFIG_ARCH_SUNXI) += sun4i-cubieboard.dtb \ - sun5i-olinuxino.dtb +dtb-$(CONFIG_ARCH_SUNXI) += sun4i-a10-cubieboard.dtb \ + sun5i-a13-olinuxino.dtb dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \ tegra20-medcom-wide.dtb \ tegra20-paz00.dtb \ diff --git a/trunk/arch/arm/boot/dts/omap2420-h4.dts b/trunk/arch/arm/boot/dts/omap2420-h4.dts index 77b84e17c477..9b0d07746cba 100644 --- a/trunk/arch/arm/boot/dts/omap2420-h4.dts +++ b/trunk/arch/arm/boot/dts/omap2420-h4.dts @@ -15,6 +15,6 @@ memory { device_type = "memory"; - reg = <0x80000000 0x84000000>; /* 64 MB */ + reg = <0x80000000 0x4000000>; /* 64 MB */ }; }; diff --git a/trunk/arch/arm/boot/dts/sun4i-cubieboard.dts b/trunk/arch/arm/boot/dts/sun4i-cubieboard.dts index f4ca126ad994..5cab82540437 100644 --- a/trunk/arch/arm/boot/dts/sun4i-cubieboard.dts +++ b/trunk/arch/arm/boot/dts/sun4i-cubieboard.dts @@ -11,11 +11,11 @@ */ /dts-v1/; -/include/ "sun4i.dtsi" +/include/ "sun4i-a10.dtsi" / { model = "Cubietech Cubieboard"; - compatible = "cubietech,cubieboard", "allwinner,sun4i"; + compatible = "cubietech,a10-cubieboard", "allwinner,sun4i-a10"; aliases { serial0 = &uart0; diff --git a/trunk/arch/arm/boot/dts/sun5i-olinuxino.dts b/trunk/arch/arm/boot/dts/sun5i-olinuxino.dts index d6ff889a5d87..498a091a4ea2 100644 --- a/trunk/arch/arm/boot/dts/sun5i-olinuxino.dts +++ b/trunk/arch/arm/boot/dts/sun5i-olinuxino.dts @@ -12,11 +12,11 @@ */ /dts-v1/; -/include/ "sun5i.dtsi" +/include/ "sun5i-a13.dtsi" / { model = "Olimex A13-Olinuxino"; - compatible = "olimex,a13-olinuxino", "allwinner,sun5i"; + compatible = "olimex,a13-olinuxino", "allwinner,sun5i-a13"; chosen { bootargs = "earlyprintk console=ttyS0,115200"; diff --git a/trunk/arch/arm/mach-davinci/board-da850-evm.c b/trunk/arch/arm/mach-davinci/board-da850-evm.c index 7211772edd9d..0299915575a8 100644 --- a/trunk/arch/arm/mach-davinci/board-da850-evm.c +++ b/trunk/arch/arm/mach-davinci/board-da850-evm.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include diff --git a/trunk/arch/arm/mach-exynos/common.h b/trunk/arch/arm/mach-exynos/common.h index dac146df79ac..04744f9c120f 100644 --- a/trunk/arch/arm/mach-exynos/common.h +++ b/trunk/arch/arm/mach-exynos/common.h @@ -25,7 +25,7 @@ void exynos_init_late(void); #ifdef CONFIG_PM_GENERIC_DOMAINS int exynos_pm_late_initcall(void); #else -static int exynos_pm_late_initcall(void) { return 0; } +static inline int exynos_pm_late_initcall(void) { return 0; } #endif #ifdef CONFIG_ARCH_EXYNOS4 diff --git a/trunk/arch/arm/mach-omap2/Kconfig b/trunk/arch/arm/mach-omap2/Kconfig index be0f62bf9037..41b581fd0213 100644 --- a/trunk/arch/arm/mach-omap2/Kconfig +++ b/trunk/arch/arm/mach-omap2/Kconfig @@ -26,6 +26,8 @@ config SOC_HAS_OMAP2_SDRC config SOC_HAS_REALTIME_COUNTER bool "Real time free running counter" + depends on SOC_OMAP5 + default y config ARCH_OMAP2 bool "TI OMAP2" @@ -79,7 +81,6 @@ config SOC_OMAP5 select ARM_GIC select CPU_V7 select HAVE_SMP - select SOC_HAS_REALTIME_COUNTER select COMMON_CLK comment "OMAP Core Type" diff --git a/trunk/arch/arm/mach-omap2/board-3430sdp.c b/trunk/arch/arm/mach-omap2/board-3430sdp.c index 7b201546834d..bb73afc9ac17 100644 --- a/trunk/arch/arm/mach-omap2/board-3430sdp.c +++ b/trunk/arch/arm/mach-omap2/board-3430sdp.c @@ -157,6 +157,7 @@ static struct omap_dss_device sdp3430_lcd_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = -1, + .i2c_bus_num = -1, }; static struct omap_dss_device sdp3430_dvi_device = { diff --git a/trunk/arch/arm/mach-omap2/board-am3517evm.c b/trunk/arch/arm/mach-omap2/board-am3517evm.c index 4be58fd071f6..f81a303b87ff 100644 --- a/trunk/arch/arm/mach-omap2/board-am3517evm.c +++ b/trunk/arch/arm/mach-omap2/board-am3517evm.c @@ -208,6 +208,7 @@ static struct omap_dss_device am3517_evm_tv_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = -1, + .i2c_bus_num = -1, }; static struct omap_dss_device am3517_evm_dvi_device = { diff --git a/trunk/arch/arm/mach-omap2/board-cm-t35.c b/trunk/arch/arm/mach-omap2/board-cm-t35.c index c8e37dc00892..b3102c2f4a3c 100644 --- a/trunk/arch/arm/mach-omap2/board-cm-t35.c +++ b/trunk/arch/arm/mach-omap2/board-cm-t35.c @@ -241,6 +241,7 @@ static struct omap_dss_device cm_t35_lcd_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = CM_T35_DVI_EN_GPIO, + .i2c_bus_num = -1, }; static struct omap_dss_device cm_t35_dvi_device = { diff --git a/trunk/arch/arm/mach-omap2/board-devkit8000.c b/trunk/arch/arm/mach-omap2/board-devkit8000.c index 7667eb749522..12865af25d3a 100644 --- a/trunk/arch/arm/mach-omap2/board-devkit8000.c +++ b/trunk/arch/arm/mach-omap2/board-devkit8000.c @@ -141,6 +141,7 @@ static struct omap_dss_device devkit8000_lcd_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = -1, + .i2c_bus_num = 1, }; static struct omap_dss_device devkit8000_dvi_device = { diff --git a/trunk/arch/arm/mach-omap2/board-h4.c b/trunk/arch/arm/mach-omap2/board-h4.c index 9a3878ec2256..3be1311f9e33 100644 --- a/trunk/arch/arm/mach-omap2/board-h4.c +++ b/trunk/arch/arm/mach-omap2/board-h4.c @@ -27,14 +27,12 @@ #include #include #include +#include #include #include #include -#include -#include - #include