From b6359918b885da7c7b58c050674278dbd06020ab Mon Sep 17 00:00:00 2001 From: Mika Kuoppala Date: Wed, 30 Oct 2013 15:44:16 +0200 Subject: drm/i915: add i915_get_reset_stats_ioctl This ioctl returns reset stats for specified context. The struct returned contains context loss counters. reset_count: all resets across all contexts batch_active: active batches lost on resets batch_pending: pending batches lost on resets v2: get rid of state tracking completely and deliver only counts. Idea from Chris Wilson. v3: fix commit message v4: default context handled inside i915_gem_context_get_hang_stats v5: reset_count only for priviledged process v6: ctx=0 needs CAP_SYS_ADMIN for batch_* counters (Chris Wilson) v7: context hang stats never returns NULL v8: rebased on top of reworked context hang stats DRM_RENDER_ALLOW for ioctl v9: use DEFAULT_CONTEXT_ID. Improve comments for ioctl struct members Signed-off-by: Mika Kuoppala Cc: Ian Romanick Cc: Chris Wilson Cc: Daniel Vetter Reviewed-by: Damien Lespiau Reviewed-by: Ian Romanick Signed-off-by: Daniel Vetter --- include/uapi/drm/i915_drm.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include') diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 3a4e97bd8607..52aed893710a 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -222,6 +222,7 @@ typedef struct _drm_i915_sarea { #define DRM_I915_GEM_SET_CACHING 0x2f #define DRM_I915_GEM_GET_CACHING 0x30 #define DRM_I915_REG_READ 0x31 +#define DRM_I915_GET_RESET_STATS 0x32 #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) #define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH) @@ -271,6 +272,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_GEM_CONTEXT_CREATE DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_CREATE, struct drm_i915_gem_context_create) #define DRM_IOCTL_I915_GEM_CONTEXT_DESTROY DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_DESTROY, struct drm_i915_gem_context_destroy) #define DRM_IOCTL_I915_REG_READ DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_REG_READ, struct drm_i915_reg_read) +#define DRM_IOCTL_I915_GET_RESET_STATS DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GET_RESET_STATS, struct drm_i915_reset_stats) /* Allow drivers to submit batchbuffers directly to hardware, relying * on the security mechanisms provided by hardware. @@ -1030,4 +1032,21 @@ struct drm_i915_reg_read { __u64 offset; __u64 val; /* Return value */ }; + +struct drm_i915_reset_stats { + __u32 ctx_id; + __u32 flags; + + /* All resets since boot/module reload, for all contexts */ + __u32 reset_count; + + /* Number of batches lost when active in GPU, for this context */ + __u32 batch_active; + + /* Number of batches lost pending for execution, for this context */ + __u32 batch_pending; + + __u32 pad; +}; + #endif /* _UAPI_I915_DRM_H_ */ -- cgit v1.2.3 From 068a00233969833f1ba925e7627797489efd6041 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Wed, 4 Dec 2013 16:35:12 +0100 Subject: drm: Add MIPI DSI bus support MIPI DSI bus allows to model DSI hosts and DSI peripherals using the Linux driver model. DSI hosts are registered by the DSI host drivers. During registration DSI peripherals will be created from the children of the DSI host's device tree node. Support for registration from board-setup code will be added later when needed. DSI hosts expose operations which can be used by DSI peripheral drivers to access associated devices. Signed-off-by: Andrzej Hajda Signed-off-by: Kyungmin Park Signed-off-by: Thierry Reding --- drivers/gpu/drm/Kconfig | 4 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/drm_mipi_dsi.c | 315 +++++++++++++++++++++++++++++++++++++++++ include/drm/drm_mipi_dsi.h | 158 +++++++++++++++++++++ 4 files changed, 478 insertions(+) create mode 100644 drivers/gpu/drm/drm_mipi_dsi.c create mode 100644 include/drm/drm_mipi_dsi.h (limited to 'include') diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index f86427591167..0b8f8fdfdea9 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -20,6 +20,10 @@ menuconfig DRM details. You should also select and configure AGP (/dev/agpgart) support if it is available for your platform. +config DRM_MIPI_DSI + bool + depends on DRM + config DRM_USB tristate depends on DRM diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index cc08b845f965..b46239a619cf 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -31,6 +31,7 @@ obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o CFLAGS_drm_trace_points.o := -I$(src) obj-$(CONFIG_DRM) += drm.o +obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o obj-$(CONFIG_DRM_USB) += drm_usb.o obj-$(CONFIG_DRM_TTM) += ttm/ obj-$(CONFIG_DRM_TDFX) += tdfx/ diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c new file mode 100644 index 000000000000..b155ee2ffa17 --- /dev/null +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -0,0 +1,315 @@ +/* + * MIPI DSI Bus + * + * Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd. + * Andrzej Hajda + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include + +#include +#include +#include +#include +#include + +#include