From ed5982e6ce5f106abcbf071f80730db344a6da42 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 17 Jan 2013 22:23:36 +0100 Subject: drm/i915: Allow userspace to hint that the relocations were known Userspace is able to hint to the kernel that its command stream and auxiliary state buffers already hold the correct presumed addresses and so the relocation process may be skipped if the kernel does not need to move any buffers in preparation for the execbuffer. Thus for the common case where the allotment of buffers is static between batches, we can avoid the overhead of individually checking the relocation entries. Note that this requires userspace to supply the domain tracking and requests for workarounds itself that would otherwise be computed based upon the relocation entries. Using copywinwin10 as an example that is dependent upon emitting a lot of relocations (2 per operation), we see improvements of: c2d/gm45: 618000.0/sec to 632000.0/sec. i3-330m: 748000.0/sec to 830000.0/sec. (measured relative to a baseline with neither optimisations applied). Signed-off-by: Chris Wilson Reviewed-by: Imre Deak [danvet: Fixup merge conflict in userspace header due to different baseline trees.] Signed-off-by: Daniel Vetter --- include/uapi/drm/i915_drm.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index c4d2e9c74002..2430b6ad6a85 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -308,6 +308,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_RSVD_FOR_FUTURE_USE 22 #define I915_PARAM_HAS_SECURE_BATCHES 23 #define I915_PARAM_HAS_PINNED_BATCHES 24 +#define I915_PARAM_HAS_EXEC_NO_RELOC 25 typedef struct drm_i915_getparam { int param; @@ -628,7 +629,11 @@ struct drm_i915_gem_exec_object2 { __u64 offset; #define EXEC_OBJECT_NEEDS_FENCE (1<<0) +#define EXEC_OBJECT_NEEDS_GTT (1<<1) +#define EXEC_OBJECT_WRITE (1<<2) +#define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_WRITE<<1) __u64 flags; + __u64 rsvd1; __u64 rsvd2; }; @@ -687,6 +692,15 @@ struct drm_i915_gem_execbuffer2 { */ #define I915_EXEC_IS_PINNED (1<<10) +/** Provide a hint to the kernel that the command stream and auxilliary + * state buffers already holds the correct presumed addresses and so the + * relocation process may be skipped if no buffers need to be moved in + * preparation for the execbuffer. + */ +#define I915_EXEC_NO_RELOC (1<<11) + +#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_NO_RELOC<<1) + #define I915_EXEC_CONTEXT_ID_MASK (0xffffffff) #define i915_execbuffer2_set_context_id(eb2, context) \ (eb2).rsvd1 = context & I915_EXEC_CONTEXT_ID_MASK -- cgit v1.2.3 From eef90ccb8a4d50b219a95cc53878ebb007315b32 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 8 Jan 2013 10:53:17 +0000 Subject: drm/i915: Use the reloc.handle as an index into the execbuffer array Using copywinwin10 as an example that is dependent upon emitting a lot of relocations (2 per operation), we see improvements of: c2d/gm45: 618000.0/sec to 623000.0/sec. i3-330m: 748000.0/sec to 789000.0/sec. (measured relative to a baseline with neither optimisations applied). Signed-off-by: Chris Wilson Reviewed-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_dma.c | 3 + drivers/gpu/drm/i915/i915_gem_execbuffer.c | 100 ++++++++++++++++++----------- include/uapi/drm/i915_drm.h | 8 ++- 3 files changed, 71 insertions(+), 40 deletions(-) (limited to 'include/uapi') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index a6e047d533ec..442118293883 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -995,6 +995,9 @@ static int i915_getparam(struct drm_device *dev, void *data, case I915_PARAM_HAS_EXEC_NO_RELOC: value = 1; break; + case I915_PARAM_HAS_EXEC_HANDLE_LUT: + value = 1; + break; default: DRM_DEBUG_DRIVER("Unknown parameter %d\n", param->param); diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 34f6cdffa9f8..f5a11ecf5494 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -36,24 +36,40 @@ struct eb_objects { struct list_head objects; int and; - struct hlist_head buckets[0]; + union { + struct drm_i915_gem_object *lut[0]; + struct hlist_head buckets[0]; + }; }; static struct eb_objects * -eb_create(int size) +eb_create(struct drm_i915_gem_execbuffer2 *args) { - struct eb_objects *eb; - int count = PAGE_SIZE / sizeof(struct hlist_head) / 2; - BUILD_BUG_ON(!is_power_of_2(PAGE_SIZE / sizeof(struct hlist_head))); - while (count > size) - count >>= 1; - eb = kzalloc(count*sizeof(struct hlist_head) + - sizeof(struct eb_objects), - GFP_KERNEL); - if (eb == NULL) - return eb; - - eb->and = count - 1; + struct eb_objects *eb = NULL; + + if (args->flags & I915_EXEC_HANDLE_LUT) { + int size = args->buffer_count; + size *= sizeof(struct drm_i915_gem_object *); + size += sizeof(struct eb_objects); + eb = kmalloc(size, GFP_TEMPORARY | __GFP_NOWARN | __GFP_NORETRY); + } + + if (eb == NULL) { + int size = args->buffer_count; + int count = PAGE_SIZE / sizeof(struct hlist_head) / 2; + BUILD_BUG_ON(!is_power_of_2(PAGE_SIZE / sizeof(struct hlist_head))); + while (count > 2*size) + count >>= 1; + eb = kzalloc(count*sizeof(struct hlist_head) + + sizeof(struct eb_objects), + GFP_TEMPORARY); + if (eb == NULL) + return eb; + + eb->and = count - 1; + } else + eb->and = -args->buffer_count; + INIT_LIST_HEAD(&eb->objects); return eb; } @@ -61,26 +77,20 @@ eb_create(int size) static void eb_reset(struct eb_objects *eb) { - memset(eb->buckets, 0, (eb->and+1)*sizeof(struct hlist_head)); -} - -static void -eb_add_object(struct eb_objects *eb, struct drm_i915_gem_object *obj) -{ - hlist_add_head(&obj->exec_node, - &eb->buckets[obj->exec_handle & eb->and]); + if (eb->and >= 0) + memset(eb->buckets, 0, (eb->and+1)*sizeof(struct hlist_head)); } static int eb_lookup_objects(struct eb_objects *eb, struct drm_i915_gem_exec_object2 *exec, - int count, + const struct drm_i915_gem_execbuffer2 *args, struct drm_file *file) { int i; spin_lock(&file->table_lock); - for (i = 0; i < count; i++) { + for (i = 0; i < args->buffer_count; i++) { struct drm_i915_gem_object *obj; obj = to_intel_bo(idr_find(&file->object_idr, exec[i].handle)); @@ -101,9 +111,15 @@ eb_lookup_objects(struct eb_objects *eb, drm_gem_object_reference(&obj->base); list_add_tail(&obj->exec_list, &eb->objects); - obj->exec_handle = exec[i].handle; obj->exec_entry = &exec[i]; - eb_add_object(eb, obj); + if (eb->and < 0) { + eb->lut[i] = obj; + } else { + uint32_t handle = args->flags & I915_EXEC_HANDLE_LUT ? i : exec[i].handle; + obj->exec_handle = handle; + hlist_add_head(&obj->exec_node, + &eb->buckets[handle & eb->and]); + } } spin_unlock(&file->table_lock); @@ -113,18 +129,24 @@ eb_lookup_objects(struct eb_objects *eb, static struct drm_i915_gem_object * eb_get_object(struct eb_objects *eb, unsigned long handle) { - struct hlist_head *head; - struct hlist_node *node; - struct drm_i915_gem_object *obj; + if (eb->and < 0) { + if (handle >= -eb->and) + return NULL; + return eb->lut[handle]; + } else { + struct hlist_head *head; + struct hlist_node *node; - head = &eb->buckets[handle & eb->and]; - hlist_for_each(node, head) { - obj = hlist_entry(node, struct drm_i915_gem_object, exec_node); - if (obj->exec_handle == handle) - return obj; - } + head = &eb->buckets[handle & eb->and]; + hlist_for_each(node, head) { + struct drm_i915_gem_object *obj; - return NULL; + obj = hlist_entry(node, struct drm_i915_gem_object, exec_node); + if (obj->exec_handle == handle) + return obj; + } + return NULL; + } } static void @@ -615,7 +637,7 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev, /* reacquire the objects */ eb_reset(eb); - ret = eb_lookup_objects(eb, exec, count, file); + ret = eb_lookup_objects(eb, exec, args, file); if (ret) goto err; @@ -919,7 +941,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, goto pre_mutex_err; } - eb = eb_create(args->buffer_count); + eb = eb_create(args); if (eb == NULL) { mutex_unlock(&dev->struct_mutex); ret = -ENOMEM; @@ -927,7 +949,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, } /* Look up object handles */ - ret = eb_lookup_objects(eb, exec, args->buffer_count, file); + ret = eb_lookup_objects(eb, exec, args, file); if (ret) goto err; diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 2430b6ad6a85..07d59419fe6b 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -309,6 +309,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_SECURE_BATCHES 23 #define I915_PARAM_HAS_PINNED_BATCHES 24 #define I915_PARAM_HAS_EXEC_NO_RELOC 25 +#define I915_PARAM_HAS_EXEC_HANDLE_LUT 26 typedef struct drm_i915_getparam { int param; @@ -699,7 +700,12 @@ struct drm_i915_gem_execbuffer2 { */ #define I915_EXEC_NO_RELOC (1<<11) -#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_NO_RELOC<<1) +/** Use the reloc.handle as an index into the exec object array rather + * than as the per-file handle. + */ +#define I915_EXEC_HANDLE_LUT (1<<12) + +#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_HANDLE_LUT<<1) #define I915_EXEC_CONTEXT_ID_MASK (0xffffffff) #define i915_execbuffer2_set_context_id(eb2, context) \ -- cgit v1.2.3 From 8bb0daffb0b8e45188066255b4203446eae181f1 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 11 Feb 2013 12:43:09 -0500 Subject: drm/omap: move out of staging Now that the omapdss interface has been reworked so that omapdrm can use dispc directly, we have been able to fix the remaining functional kms issues with omapdrm. And in the mean time the PM sequencing and many other of that open issues have been solved. So I think it makes sense to finally move omapdrm out of staging. Signed-off-by: Rob Clark --- drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/omapdrm/Kconfig | 25 + drivers/gpu/drm/omapdrm/Makefile | 24 + drivers/gpu/drm/omapdrm/TODO | 23 + drivers/gpu/drm/omapdrm/omap_connector.c | 298 ++++++ drivers/gpu/drm/omapdrm/omap_crtc.c | 659 ++++++++++++ drivers/gpu/drm/omapdrm/omap_debugfs.c | 139 +++ drivers/gpu/drm/omapdrm/omap_dmm_priv.h | 188 ++++ drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 991 ++++++++++++++++++ drivers/gpu/drm/omapdrm/omap_dmm_tiler.h | 141 +++ drivers/gpu/drm/omapdrm/omap_drv.c | 610 +++++++++++ drivers/gpu/drm/omapdrm/omap_drv.h | 333 ++++++ drivers/gpu/drm/omapdrm/omap_encoder.c | 170 ++++ drivers/gpu/drm/omapdrm/omap_fb.c | 472 +++++++++ drivers/gpu/drm/omapdrm/omap_fbdev.c | 402 ++++++++ drivers/gpu/drm/omapdrm/omap_gem.c | 1511 ++++++++++++++++++++++++++++ drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 225 +++++ drivers/gpu/drm/omapdrm/omap_gem_helpers.c | 169 ++++ drivers/gpu/drm/omapdrm/omap_irq.c | 322 ++++++ drivers/gpu/drm/omapdrm/omap_plane.c | 450 +++++++++ drivers/gpu/drm/omapdrm/tcm-sita.c | 703 +++++++++++++ drivers/gpu/drm/omapdrm/tcm-sita.h | 95 ++ drivers/gpu/drm/omapdrm/tcm.h | 328 ++++++ drivers/staging/Kconfig | 2 - drivers/staging/Makefile | 1 - drivers/staging/omapdrm/Kconfig | 25 - drivers/staging/omapdrm/Makefile | 24 - drivers/staging/omapdrm/TODO | 32 - drivers/staging/omapdrm/omap_connector.c | 298 ------ drivers/staging/omapdrm/omap_crtc.c | 659 ------------ drivers/staging/omapdrm/omap_debugfs.c | 139 --- drivers/staging/omapdrm/omap_dmm_priv.h | 188 ---- drivers/staging/omapdrm/omap_dmm_tiler.c | 991 ------------------ drivers/staging/omapdrm/omap_dmm_tiler.h | 141 --- drivers/staging/omapdrm/omap_drm.h | 123 --- drivers/staging/omapdrm/omap_drv.c | 610 ----------- drivers/staging/omapdrm/omap_drv.h | 333 ------ drivers/staging/omapdrm/omap_encoder.c | 170 ---- drivers/staging/omapdrm/omap_fb.c | 472 --------- drivers/staging/omapdrm/omap_fbdev.c | 402 -------- drivers/staging/omapdrm/omap_gem.c | 1511 ---------------------------- drivers/staging/omapdrm/omap_gem_dmabuf.c | 225 ----- drivers/staging/omapdrm/omap_gem_helpers.c | 169 ---- drivers/staging/omapdrm/omap_irq.c | 322 ------ drivers/staging/omapdrm/omap_plane.c | 450 --------- drivers/staging/omapdrm/tcm-sita.c | 703 ------------- drivers/staging/omapdrm/tcm-sita.h | 95 -- drivers/staging/omapdrm/tcm.h | 328 ------ include/uapi/drm/omap_drm.h | 123 +++ 50 files changed, 8404 insertions(+), 8413 deletions(-) create mode 100644 drivers/gpu/drm/omapdrm/Kconfig create mode 100644 drivers/gpu/drm/omapdrm/Makefile create mode 100644 drivers/gpu/drm/omapdrm/TODO create mode 100644 drivers/gpu/drm/omapdrm/omap_connector.c create mode 100644 drivers/gpu/drm/omapdrm/omap_crtc.c create mode 100644 drivers/gpu/drm/omapdrm/omap_debugfs.c create mode 100644 drivers/gpu/drm/omapdrm/omap_dmm_priv.h create mode 100644 drivers/gpu/drm/omapdrm/omap_dmm_tiler.c create mode 100644 drivers/gpu/drm/omapdrm/omap_dmm_tiler.h create mode 100644 drivers/gpu/drm/omapdrm/omap_drv.c create mode 100644 drivers/gpu/drm/omapdrm/omap_drv.h create mode 100644 drivers/gpu/drm/omapdrm/omap_encoder.c create mode 100644 drivers/gpu/drm/omapdrm/omap_fb.c create mode 100644 drivers/gpu/drm/omapdrm/omap_fbdev.c create mode 100644 drivers/gpu/drm/omapdrm/omap_gem.c create mode 100644 drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c create mode 100644 drivers/gpu/drm/omapdrm/omap_gem_helpers.c create mode 100644 drivers/gpu/drm/omapdrm/omap_irq.c create mode 100644 drivers/gpu/drm/omapdrm/omap_plane.c create mode 100644 drivers/gpu/drm/omapdrm/tcm-sita.c create mode 100644 drivers/gpu/drm/omapdrm/tcm-sita.h create mode 100644 drivers/gpu/drm/omapdrm/tcm.h delete mode 100644 drivers/staging/omapdrm/Kconfig delete mode 100644 drivers/staging/omapdrm/Makefile delete mode 100644 drivers/staging/omapdrm/TODO delete mode 100644 drivers/staging/omapdrm/omap_connector.c delete mode 100644 drivers/staging/omapdrm/omap_crtc.c delete mode 100644 drivers/staging/omapdrm/omap_debugfs.c delete mode 100644 drivers/staging/omapdrm/omap_dmm_priv.h delete mode 100644 drivers/staging/omapdrm/omap_dmm_tiler.c delete mode 100644 drivers/staging/omapdrm/omap_dmm_tiler.h delete mode 100644 drivers/staging/omapdrm/omap_drm.h delete mode 100644 drivers/staging/omapdrm/omap_drv.c delete mode 100644 drivers/staging/omapdrm/omap_drv.h delete mode 100644 drivers/staging/omapdrm/omap_encoder.c delete mode 100644 drivers/staging/omapdrm/omap_fb.c delete mode 100644 drivers/staging/omapdrm/omap_fbdev.c delete mode 100644 drivers/staging/omapdrm/omap_gem.c delete mode 100644 drivers/staging/omapdrm/omap_gem_dmabuf.c delete mode 100644 drivers/staging/omapdrm/omap_gem_helpers.c delete mode 100644 drivers/staging/omapdrm/omap_irq.c delete mode 100644 drivers/staging/omapdrm/omap_plane.c delete mode 100644 drivers/staging/omapdrm/tcm-sita.c delete mode 100644 drivers/staging/omapdrm/tcm-sita.h delete mode 100644 drivers/staging/omapdrm/tcm.h create mode 100644 include/uapi/drm/omap_drm.h (limited to 'include/uapi') diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index ed9e3af17b31..0ce5f52ac56e 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -215,3 +215,5 @@ source "drivers/gpu/drm/cirrus/Kconfig" source "drivers/gpu/drm/shmobile/Kconfig" source "drivers/gpu/drm/tegra/Kconfig" + +source "drivers/gpu/drm/omapdrm/Kconfig" diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 6f58c81cfcbc..b6b43cbc18e4 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -50,4 +50,5 @@ obj-$(CONFIG_DRM_UDL) += udl/ obj-$(CONFIG_DRM_AST) += ast/ obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/ obj-$(CONFIG_DRM_TEGRA) += tegra/ +obj-$(CONFIG_DRM_OMAP) += omapdrm/ obj-y += i2c/ diff --git a/drivers/gpu/drm/omapdrm/Kconfig b/drivers/gpu/drm/omapdrm/Kconfig new file mode 100644 index 000000000000..b724a4131435 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/Kconfig @@ -0,0 +1,25 @@ + +config DRM_OMAP + tristate "OMAP DRM" + depends on DRM && !CONFIG_FB_OMAP2 + depends on ARCH_OMAP2PLUS || ARCH_MULTIPLATFORM + select DRM_KMS_HELPER + select OMAP2_DSS + select FB_SYS_FILLRECT + select FB_SYS_COPYAREA + select FB_SYS_IMAGEBLIT + select FB_SYS_FOPS + default n + help + DRM display driver for OMAP2/3/4 based boards. + +config DRM_OMAP_NUM_CRTCS + int "Number of CRTCs" + range 1 10 + default 1 if ARCH_OMAP2 || ARCH_OMAP3 + default 2 if ARCH_OMAP4 + depends on DRM_OMAP + help + Select the number of video overlays which can be used as framebuffers. + The remaining overlays are reserved for video. + diff --git a/drivers/gpu/drm/omapdrm/Makefile b/drivers/gpu/drm/omapdrm/Makefile new file mode 100644 index 000000000000..d85e058f2845 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/Makefile @@ -0,0 +1,24 @@ +# +# Makefile for the drm device driver. This driver provides support for the +# Direct Rendering Infrastructure (DRI) +# + +ccflags-y := -Iinclude/drm -Werror +omapdrm-y := omap_drv.o \ + omap_irq.o \ + omap_debugfs.o \ + omap_crtc.o \ + omap_plane.o \ + omap_encoder.o \ + omap_connector.o \ + omap_fb.o \ + omap_fbdev.o \ + omap_gem.o \ + omap_gem_dmabuf.o \ + omap_dmm_tiler.o \ + tcm-sita.o + +# temporary: +omapdrm-y += omap_gem_helpers.o + +obj-$(CONFIG_DRM_OMAP) += omapdrm.o diff --git a/drivers/gpu/drm/omapdrm/TODO b/drivers/gpu/drm/omapdrm/TODO new file mode 100644 index 000000000000..4d8c18aa5dd7 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/TODO @@ -0,0 +1,23 @@ +TODO +. Where should we do eviction (detatch_pages())? We aren't necessarily + accessing the pages via a GART, so maybe we need some other threshold + to put a cap on the # of pages that can be pin'd. + . Use mm_shrinker to trigger unpinning pages. + . This is mainly theoretical since most of these devices don't actually + have swap or harddrive. +. GEM/shmem backed pages can have existing mappings (kernel linear map, + etc..), which isn't really ideal. +. Revisit GEM sync object infrastructure.. TTM has some framework for this + already. Possibly this could be refactored out and made more common? + There should be some way to do this with less wheel-reinvention. + . This can be handled by the dma-buf fence/reservation stuff when it + lands + +Userspace: +. git://anongit.freedesktop.org/xorg/driver/xf86-video-omap + +Currently tested on +. OMAP3530 beagleboard +. OMAP4430 pandaboard +. OMAP4460 pandaboard +. OMAP5432 uEVM diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c new file mode 100644 index 000000000000..44284fd981fc --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_connector.c @@ -0,0 +1,298 @@ +/* + * drivers/gpu/drm/omapdrm/omap_connector.c + * + * Copyright (C) 2011 Texas Instruments + * Author: Rob Clark + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include "omap_drv.h" + +#include "drm_crtc.h" +#include "drm_crtc_helper.h" + +/* + * connector funcs + */ + +#define to_omap_connector(x) container_of(x, struct omap_connector, base) + +struct omap_connector { + struct drm_connector base; + struct omap_dss_device *dssdev; + struct drm_encoder *encoder; +}; + +void copy_timings_omap_to_drm(struct drm_display_mode *mode, + struct omap_video_timings *timings) +{ + mode->clock = timings->pixel_clock; + + mode->hdisplay = timings->x_res; + mode->hsync_start = mode->hdisplay + timings->hfp; + mode->hsync_end = mode->hsync_start + timings->hsw; + mode->htotal = mode->hsync_end + timings->hbp; + + mode->vdisplay = timings->y_res; + mode->vsync_start = mode->vdisplay + timings->vfp; + mode->vsync_end = mode->vsync_start + timings->vsw; + mode->vtotal = mode->vsync_end + timings->vbp; + + mode->flags = 0; + + if (timings->interlace) + mode->flags |= DRM_MODE_FLAG_INTERLACE; + + if (timings->hsync_level == OMAPDSS_SIG_ACTIVE_HIGH) + mode->flags |= DRM_MODE_FLAG_PHSYNC; + else + mode->flags |= DRM_MODE_FLAG_NHSYNC; + + if (timings->vsync_level == OMAPDSS_SIG_ACTIVE_HIGH) + mode->flags |= DRM_MODE_FLAG_PVSYNC; + else + mode->flags |= DRM_MODE_FLAG_NVSYNC; +} + +void copy_timings_drm_to_omap(struct omap_video_timings *timings, + struct drm_display_mode *mode) +{ + timings->pixel_clock = mode->clock; + + timings->x_res = mode->hdisplay; + timings->hfp = mode->hsync_start - mode->hdisplay; + timings->hsw = mode->hsync_end - mode->hsync_start; + timings->hbp = mode->htotal - mode->hsync_end; + + timings->y_res = mode->vdisplay; + timings->vfp = mode->vsync_start - mode->vdisplay; + timings->vsw = mode->vsync_end - mode->vsync_start; + timings->vbp = mode->vtotal - mode->vsync_end; + + timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); + + if (mode->flags & DRM_MODE_FLAG_PHSYNC) + timings->hsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + else + timings->hsync_level = OMAPDSS_SIG_ACTIVE_LOW; + + if (mode->flags & DRM_MODE_FLAG_PVSYNC) + timings->vsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + else + timings->vsync_level = OMAPDSS_SIG_ACTIVE_LOW; + + timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; + timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH; + timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; +} + +static enum drm_connector_status omap_connector_detect( + struct drm_connector *connector, bool force) +{ + struct omap_connector *omap_connector = to_omap_connector(connector); + struct omap_dss_device *dssdev = omap_connector->dssdev; + struct omap_dss_driver *dssdrv = dssdev->driver; + enum drm_connector_status ret; + + if (dssdrv->detect) { + if (dssdrv->detect(dssdev)) + ret = connector_status_connected; + else + ret = connector_status_disconnected; + } else { + ret = connector_status_unknown; + } + + VERB("%s: %d (force=%d)", omap_connector->dssdev->name, ret, force); + + return ret; +} + +static void omap_connector_destroy(struct drm_connector *connector) +{ + struct omap_connector *omap_connector = to_omap_connector(connector); + struct omap_dss_device *dssdev = omap_connector->dssdev; + + DBG("%s", omap_connector->dssdev->name); + drm_sysfs_connector_remove(connector); + drm_connector_cleanup(connector); + kfree(omap_connector); + + omap_dss_put_device(dssdev); +} + +#define MAX_EDID 512 + +static int omap_connector_get_modes(struct drm_connector *connector) +{ + struct omap_connector *omap_connector = to_omap_connector(connector); + struct omap_dss_device *dssdev = omap_connector->dssdev; + struct omap_dss_driver *dssdrv = dssdev->driver; + struct drm_device *dev = connector->dev; + int n = 0; + + DBG("%s", omap_connector->dssdev->name); + + /* if display exposes EDID, then we parse that in the normal way to + * build table of supported modes.. otherwise (ie. fixed resolution + * LCD panels) we just return a single mode corresponding to the + * currently configured timings: + */ + if (dssdrv->read_edid) { + void *edid = kzalloc(MAX_EDID, GFP_KERNEL); + + if ((dssdrv->read_edid(dssdev, edid, MAX_EDID) > 0) && + drm_edid_is_valid(edid)) { + drm_mode_connector_update_edid_property( + connector, edid); + n = drm_add_edid_modes(connector, edid); + } else { + drm_mode_connector_update_edid_property( + connector, NULL); + } + kfree(edid); + } else { + struct drm_display_mode *mode = drm_mode_create(dev); + struct omap_video_timings timings = {0}; + + dssdrv->get_timings(dssdev, &timings); + + copy_timings_omap_to_drm(mode, &timings); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_set_name(mode); + drm_mode_probed_add(connector, mode); + + n = 1; + } + + return n; +} + +static int omap_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct omap_connector *omap_connector = to_omap_connector(connector); + struct omap_dss_device *dssdev = omap_connector->dssdev; + struct omap_dss_driver *dssdrv = dssdev->driver; + struct omap_video_timings timings = {0}; + struct drm_device *dev = connector->dev; + struct drm_display_mode *new_mode; + int ret = MODE_BAD; + + copy_timings_drm_to_omap(&timings, mode); + mode->vrefresh = drm_mode_vrefresh(mode); + + if (!dssdrv->check_timings(dssdev, &timings)) { + /* check if vrefresh is still valid */ + new_mode = drm_mode_duplicate(dev, mode); + new_mode->clock = timings.pixel_clock; + new_mode->vrefresh = 0; + if (mode->vrefresh == drm_mode_vrefresh(new_mode)) + ret = MODE_OK; + drm_mode_destroy(dev, new_mode); + } + + DBG("connector: mode %s: " + "%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", + (ret == MODE_OK) ? "valid" : "invalid", + mode->base.id, mode->name, mode->vrefresh, mode->clock, + mode->hdisplay, mode->hsync_start, + mode->hsync_end, mode->htotal, + mode->vdisplay, mode->vsync_start, + mode->vsync_end, mode->vtotal, mode->type, mode->flags); + + return ret; +} + +struct drm_encoder *omap_connector_attached_encoder( + struct drm_connector *connector) +{ + struct omap_connector *omap_connector = to_omap_connector(connector); + return omap_connector->encoder; +} + +static const struct drm_connector_funcs omap_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = omap_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = omap_connector_destroy, +}; + +static const struct drm_connector_helper_funcs omap_connector_helper_funcs = { + .get_modes = omap_connector_get_modes, + .mode_valid = omap_connector_mode_valid, + .best_encoder = omap_connector_attached_encoder, +}; + +/* flush an area of the framebuffer (in case of manual update display that + * is not automatically flushed) + */ +void omap_connector_flush(struct drm_connector *connector, + int x, int y, int w, int h) +{ + struct omap_connector *omap_connector = to_omap_connector(connector); + + /* TODO: enable when supported in dss */ + VERB("%s: %d,%d, %dx%d", omap_connector->dssdev->name, x, y, w, h); +} + +/* initialize connector */ +struct drm_connector *omap_connector_init(struct drm_device *dev, + int connector_type, struct omap_dss_device *dssdev, + struct drm_encoder *encoder) +{ + struct drm_connector *connector = NULL; + struct omap_connector *omap_connector; + + DBG("%s", dssdev->name); + + omap_dss_get_device(dssdev); + + omap_connector = kzalloc(sizeof(struct omap_connector), GFP_KERNEL); + if (!omap_connector) { + dev_err(dev->dev, "could not allocate connector\n"); + goto fail; + } + + omap_connector->dssdev = dssdev; + omap_connector->encoder = encoder; + + connector = &omap_connector->base; + + drm_connector_init(dev, connector, &omap_connector_funcs, + connector_type); + drm_connector_helper_add(connector, &omap_connector_helper_funcs); + +#if 0 /* enable when dss2 supports hotplug */ + if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD) + connector->polled = 0; + else +#endif + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + + connector->interlace_allowed = 1; + connector->doublescan_allowed = 0; + + drm_sysfs_connector_add(connector); + + return connector; + +fail: + if (connector) + omap_connector_destroy(connector); + + return NULL; +} diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c new file mode 100644 index 000000000000..2b97cf90071b --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -0,0 +1,659 @@ +/* + * drivers/gpu/drm/omapdrm/omap_crtc.c + * + * Copyright (C) 2011 Texas Instruments + * Author: Rob Clark + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include "omap_drv.h" + +#include +#include "drm_crtc.h" +#include "drm_crtc_helper.h" + +#define to_omap_crtc(x) container_of(x, struct omap_crtc, base) + +struct omap_crtc { + struct drm_crtc base; + struct drm_plane *plane; + + const char *name; + int pipe; + enum omap_channel channel; + struct omap_overlay_manager_info info; + + /* + * Temporary: eventually this will go away, but it is needed + * for now to keep the output's happy. (They only need + * mgr->id.) Eventually this will be replaced w/ something + * more common-panel-framework-y + */ + struct omap_overlay_manager mgr; + + struct omap_video_timings timings; + bool enabled; + bool full_update; + + struct omap_drm_apply apply; + + struct omap_drm_irq apply_irq; + struct omap_drm_irq error_irq; + + /* list of in-progress apply's: */ + struct list_head pending_applies; + + /* list of queued apply's: */ + struct list_head queued_applies; + + /* for handling queued and in-progress applies: */ + struct work_struct apply_work; + + /* if there is a pending flip, these will be non-null: */ + struct drm_pending_vblank_event *event; + struct drm_framebuffer *old_fb; + + /* for handling page flips without caring about what + * the callback is called from. Possibly we should just + * make omap_gem always call the cb from the worker so + * we don't have to care about this.. + * + * XXX maybe fold into apply_work?? + */ + struct work_struct page_flip_work; +}; + +/* + * Manager-ops, callbacks from output when they need to configure + * the upstream part of the video pipe. + * + * Most of these we can ignore until we add support for command-mode + * panels.. for video-mode the crtc-helpers already do an adequate + * job of sequencing the setup of the video pipe in the proper order + */ + +/* we can probably ignore these until we support command-mode panels: */ +static void omap_crtc_start_update(struct omap_overlay_manager *mgr) +{ +} + +static int omap_crtc_enable(struct omap_overlay_manager *mgr) +{ + return 0; +} + +static void omap_crtc_disable(struct omap_overlay_manager *mgr) +{ +} + +static void omap_crtc_set_timings(struct omap_overlay_manager *mgr, + const struct omap_video_timings *timings) +{ + struct omap_crtc *omap_crtc = container_of(mgr, struct omap_crtc, mgr); + DBG("%s", omap_crtc->name); + omap_crtc->timings = *timings; + omap_crtc->full_update = true; +} + +static void omap_crtc_set_lcd_config(struct omap_overlay_manager *mgr, + const struct dss_lcd_mgr_config *config) +{ + struct omap_crtc *omap_crtc = container_of(mgr, struct omap_crtc, mgr); + DBG("%s", omap_crtc->name); + dispc_mgr_set_lcd_config(omap_crtc->channel, config); +} + +static int omap_crtc_register_framedone_handler( + struct omap_overlay_manager *mgr, + void (*handler)(void *), void *data) +{ + return 0; +} + +static void omap_crtc_unregister_framedone_handler( + struct omap_overlay_manager *mgr, + void (*handler)(void *), void *data) +{ +} + +static const struct dss_mgr_ops mgr_ops = { + .start_update = omap_crtc_start_update, + .enable = omap_crtc_enable, + .disable = omap_crtc_disable, + .set_timings = omap_crtc_set_timings, + .set_lcd_config = omap_crtc_set_lcd_config, + .register_framedone_handler = omap_crtc_register_framedone_handler, + .unregister_framedone_handler = omap_crtc_unregister_framedone_handler, +}; + +/* + * CRTC funcs: + */ + +static void omap_crtc_destroy(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + + DBG("%s", omap_crtc->name); + + WARN_ON(omap_crtc->apply_irq.registered); + omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); + + omap_crtc->plane->funcs->destroy(omap_crtc->plane); + drm_crtc_cleanup(crtc); + + kfree(omap_crtc); +} + +static void omap_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct omap_drm_private *priv = crtc->dev->dev_private; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + bool enabled = (mode == DRM_MODE_DPMS_ON); + int i; + + DBG("%s: %d", omap_crtc->name, mode); + + if (enabled != omap_crtc->enabled) { + omap_crtc->enabled = enabled; + omap_crtc->full_update = true; + omap_crtc_apply(crtc, &omap_crtc->apply); + + /* also enable our private plane: */ + WARN_ON(omap_plane_dpms(omap_crtc->plane, mode)); + + /* and any attached overlay planes: */ + for (i = 0; i < priv->num_planes; i++) { + struct drm_plane *plane = priv->planes[i]; + if (plane->crtc == crtc) + WARN_ON(omap_plane_dpms(plane, mode)); + } + } +} + +static bool omap_crtc_mode_fixup(struct drm_crtc *crtc, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +static int omap_crtc_mode_set(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, + int x, int y, + struct drm_framebuffer *old_fb) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + + mode = adjusted_mode; + + DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", + omap_crtc->name, mode->base.id, mode->name, + mode->vrefresh, mode->clock, + mode->hdisplay, mode->hsync_start, + mode->hsync_end, mode->htotal, + mode->vdisplay, mode->vsync_start, + mode->vsync_end, mode->vtotal, + mode->type, mode->flags); + + copy_timings_drm_to_omap(&omap_crtc->timings, mode); + omap_crtc->full_update = true; + + return omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + x << 16, y << 16, + mode->hdisplay << 16, mode->vdisplay << 16, + NULL, NULL); +} + +static void omap_crtc_prepare(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + DBG("%s", omap_crtc->name); + omap_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); +} + +static void omap_crtc_commit(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + DBG("%s", omap_crtc->name); + omap_crtc_dpms(crtc, DRM_MODE_DPMS_ON); +} + +static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct drm_plane *plane = omap_crtc->plane; + struct drm_display_mode *mode = &crtc->mode; + + return omap_plane_mode_set(plane, crtc, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + x << 16, y << 16, + mode->hdisplay << 16, mode->vdisplay << 16, + NULL, NULL); +} + +static void omap_crtc_load_lut(struct drm_crtc *crtc) +{ +} + +static void vblank_cb(void *arg) +{ + struct drm_crtc *crtc = arg; + struct drm_device *dev = crtc->dev; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + unsigned long flags; + + spin_lock_irqsave(&dev->event_lock, flags); + + /* wakeup userspace */ + if (omap_crtc->event) + drm_send_vblank_event(dev, omap_crtc->pipe, omap_crtc->event); + + omap_crtc->event = NULL; + omap_crtc->old_fb = NULL; + + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +static void page_flip_worker(struct work_struct *work) +{ + struct omap_crtc *omap_crtc = + container_of(work, struct omap_crtc, page_flip_work); + struct drm_crtc *crtc = &omap_crtc->base; + struct drm_device *dev = crtc->dev; + struct drm_display_mode *mode = &crtc->mode; + struct drm_gem_object *bo; + + drm_modeset_lock_all(dev); + omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + crtc->x << 16, crtc->y << 16, + mode->hdisplay << 16, mode->vdisplay << 16, + vblank_cb, crtc); + drm_modeset_unlock_all(dev); + + bo = omap_framebuffer_bo(crtc->fb, 0); + drm_gem_object_unreference_unlocked(bo); +} + +static void page_flip_cb(void *arg) +{ + struct drm_crtc *crtc = arg; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_drm_private *priv = crtc->dev->dev_private; + + /* avoid assumptions about what ctxt we are called from: */ + queue_work(priv->wq, &omap_crtc->page_flip_work); +} + +static int omap_crtc_page_flip_locked(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event) +{ + struct drm_device *dev = crtc->dev; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct drm_gem_object *bo; + + DBG("%d -> %d (event=%p)", crtc->fb ? crtc->fb->base.id : -1, + fb->base.id, event); + + if (omap_crtc->old_fb) { + dev_err(dev->dev, "already a pending flip\n"); + return -EINVAL; + } + + omap_crtc->event = event; + crtc->fb = fb; + + /* + * Hold a reference temporarily until the crtc is updated + * and takes the reference to the bo. This avoids it + * getting freed from under us: + */ + bo = omap_framebuffer_bo(fb, 0); + drm_gem_object_reference(bo); + + omap_gem_op_async(bo, OMAP_GEM_READ, page_flip_cb, crtc); + + return 0; +} + +static int omap_crtc_set_property(struct drm_crtc *crtc, + struct drm_property *property, uint64_t val) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_drm_private *priv = crtc->dev->dev_private; + + if (property == priv->rotation_prop) { + crtc->invert_dimensions = + !!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270))); + } + + return omap_plane_set_property(omap_crtc->plane, property, val); +} + +static const struct drm_crtc_funcs omap_crtc_funcs = { + .set_config = drm_crtc_helper_set_config, + .destroy = omap_crtc_destroy, + .page_flip = omap_crtc_page_flip_locked, + .set_property = omap_crtc_set_property, +}; + +static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = { + .dpms = omap_crtc_dpms, + .mode_fixup = omap_crtc_mode_fixup, + .mode_set = omap_crtc_mode_set, + .prepare = omap_crtc_prepare, + .commit = omap_crtc_commit, + .mode_set_base = omap_crtc_mode_set_base, + .load_lut = omap_crtc_load_lut, +}; + +const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + return &omap_crtc->timings; +} + +enum omap_channel omap_crtc_channel(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + return omap_crtc->channel; +} + +static void omap_crtc_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus) +{ + struct omap_crtc *omap_crtc = + container_of(irq, struct omap_crtc, error_irq); + struct drm_crtc *crtc = &omap_crtc->base; + DRM_ERROR("%s: errors: %08x\n", omap_crtc->name, irqstatus); + /* avoid getting in a flood, unregister the irq until next vblank */ + omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); +} + +static void omap_crtc_apply_irq(struct omap_drm_irq *irq, uint32_t irqstatus) +{ + struct omap_crtc *omap_crtc = + container_of(irq, struct omap_crtc, apply_irq); + struct drm_crtc *crtc = &omap_crtc->base; + + if (!omap_crtc->error_irq.registered) + omap_irq_register(crtc->dev, &omap_crtc->error_irq); + + if (!dispc_mgr_go_busy(omap_crtc->channel)) { + struct omap_drm_private *priv = + crtc->dev->dev_private; + DBG("%s: apply done", omap_crtc->name); + omap_irq_unregister(crtc->dev, &omap_crtc->apply_irq); + queue_work(priv->wq, &omap_crtc->apply_work); + } +} + +static void apply_worker(struct work_struct *work) +{ + struct omap_crtc *omap_crtc = + container_of(work, struct omap_crtc, apply_work); + struct drm_crtc *crtc = &omap_crtc->base; + struct drm_device *dev = crtc->dev; + struct omap_drm_apply *apply, *n; + bool need_apply; + + /* + * Synchronize everything on mode_config.mutex, to keep + * the callbacks and list modification all serialized + * with respect to modesetting ioctls from userspace. + */ + drm_modeset_lock_all(dev); + dispc_runtime_get(); + + /* + * If we are still pending a previous update, wait.. when the + * pending update completes, we get kicked again. + */ + if (omap_crtc->apply_irq.registered) + goto out; + + /* finish up previous apply's: */ + list_for_each_entry_safe(apply, n, + &omap_crtc->pending_applies, pending_node) { + apply->post_apply(apply); + list_del(&apply->pending_node); + } + + need_apply = !list_empty(&omap_crtc->queued_applies); + + /* then handle the next round of of queued apply's: */ + list_for_each_entry_safe(apply, n, + &omap_crtc->queued_applies, queued_node) { + apply->pre_apply(apply); + list_del(&apply->queued_node); + apply->queued = false; + list_add_tail(&apply->pending_node, + &omap_crtc->pending_applies); + } + + if (need_apply) { + enum omap_channel channel = omap_crtc->channel; + + DBG("%s: GO", omap_crtc->name); + + if (dispc_mgr_is_enabled(channel)) { + omap_irq_register(dev, &omap_crtc->apply_irq); + dispc_mgr_go(channel); + } else { + struct omap_drm_private *priv = dev->dev_private; + queue_work(priv->wq, &omap_crtc->apply_work); + } + } + +out: + dispc_runtime_put(); + drm_modeset_unlock_all(dev); +} + +int omap_crtc_apply(struct drm_crtc *crtc, + struct omap_drm_apply *apply) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct drm_device *dev = crtc->dev; + + WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + + /* no need to queue it again if it is already queued: */ + if (apply->queued) + return 0; + + apply->queued = true; + list_add_tail(&apply->queued_node, &omap_crtc->queued_applies); + + /* + * If there are no currently pending updates, then go ahead and + * kick the worker immediately, otherwise it will run again when + * the current update finishes. + */ + if (list_empty(&omap_crtc->pending_applies)) { + struct omap_drm_private *priv = crtc->dev->dev_private; + queue_work(priv->wq, &omap_crtc->apply_work); + } + + return 0; +} + +/* called only from apply */ +static void set_enabled(struct drm_crtc *crtc, bool enable) +{ + struct drm_device *dev = crtc->dev; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + enum omap_channel channel = omap_crtc->channel; + struct omap_irq_wait *wait = NULL; + + if (dispc_mgr_is_enabled(channel) == enable) + return; + + /* ignore sync-lost irqs during enable/disable */ + omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); + + if (dispc_mgr_get_framedone_irq(channel)) { + if (!enable) { + wait = omap_irq_wait_init(dev, + dispc_mgr_get_framedone_irq(channel), 1); + } + } else { + /* + * When we disable digit output, we need to wait until fields + * are done. Otherwise the DSS is still working, and turning + * off the clocks prevents DSS from going to OFF mode. And when + * enabling, we need to wait for the extra sync losts + */ + wait = omap_irq_wait_init(dev, + dispc_mgr_get_vsync_irq(channel), 2); + } + + dispc_mgr_enable(channel, enable); + + if (wait) { + int ret = omap_irq_wait(dev, wait, msecs_to_jiffies(100)); + if (ret) { + dev_err(dev->dev, "%s: timeout waiting for %s\n", + omap_crtc->name, enable ? "enable" : "disable"); + } + } + + omap_irq_register(crtc->dev, &omap_crtc->error_irq); +} + +static void omap_crtc_pre_apply(struct omap_drm_apply *apply) +{ + struct omap_crtc *omap_crtc = + container_of(apply, struct omap_crtc, apply); + struct drm_crtc *crtc = &omap_crtc->base; + struct drm_encoder *encoder = NULL; + + DBG("%s: enabled=%d, full=%d", omap_crtc->name, + omap_crtc->enabled, omap_crtc->full_update); + + if (omap_crtc->full_update) { + struct omap_drm_private *priv = crtc->dev->dev_private; + int i; + for (i = 0; i < priv->num_encoders; i++) { + if (priv->encoders[i]->crtc == crtc) { + encoder = priv->encoders[i]; + break; + } + } + } + + if (!omap_crtc->enabled) { + set_enabled(&omap_crtc->base, false); + if (encoder) + omap_encoder_set_enabled(encoder, false); + } else { + if (encoder) { + omap_encoder_set_enabled(encoder, false); + omap_encoder_update(encoder, &omap_crtc->mgr, + &omap_crtc->timings); + omap_encoder_set_enabled(encoder, true); + omap_crtc->full_update = false; + } + + dispc_mgr_setup(omap_crtc->channel, &omap_crtc->info); + dispc_mgr_set_timings(omap_crtc->channel, + &omap_crtc->timings); + set_enabled(&omap_crtc->base, true); + } + + omap_crtc->full_update = false; +} + +static void omap_crtc_post_apply(struct omap_drm_apply *apply) +{ + /* nothing needed for post-apply */ +} + +static const char *channel_names[] = { + [OMAP_DSS_CHANNEL_LCD] = "lcd", + [OMAP_DSS_CHANNEL_DIGIT] = "tv", + [OMAP_DSS_CHANNEL_LCD2] = "lcd2", +}; + +/* initialize crtc */ +struct drm_crtc *omap_crtc_init(struct drm_device *dev, + struct drm_plane *plane, enum omap_channel channel, int id) +{ + struct drm_crtc *crtc = NULL; + struct omap_crtc *omap_crtc; + struct omap_overlay_manager_info *info; + + DBG("%s", channel_names[channel]); + + omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL); + + if (!omap_crtc) { + dev_err(dev->dev, "could not allocate CRTC\n"); + goto fail; + } + + crtc = &omap_crtc->base; + + INIT_WORK(&omap_crtc->page_flip_work, page_flip_worker); + INIT_WORK(&omap_crtc->apply_work, apply_worker); + + INIT_LIST_HEAD(&omap_crtc->pending_applies); + INIT_LIST_HEAD(&omap_crtc->queued_applies); + + omap_crtc->apply.pre_apply = omap_crtc_pre_apply; + omap_crtc->apply.post_apply = omap_crtc_post_apply; + + omap_crtc->apply_irq.irqmask = pipe2vbl(id); + omap_crtc->apply_irq.irq = omap_crtc_apply_irq; + + omap_crtc->error_irq.irqmask = + dispc_mgr_get_sync_lost_irq(channel); + omap_crtc->error_irq.irq = omap_crtc_error_irq; + omap_irq_register(dev, &omap_crtc->error_irq); + + omap_crtc->channel = channel; + omap_crtc->plane = plane; + omap_crtc->plane->crtc = crtc; + omap_crtc->name = channel_names[channel]; + omap_crtc->pipe = id; + + /* temporary: */ + omap_crtc->mgr.id = channel; + + dss_install_mgr_ops(&mgr_ops); + + /* TODO: fix hard-coded setup.. add properties! */ + info = &omap_crtc->info; + info->default_color = 0x00000000; + info->trans_key = 0x00000000; + info->trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST; + info->trans_enabled = false; + + drm_crtc_init(dev, crtc, &omap_crtc_funcs); + drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs); + + omap_plane_install_properties(omap_crtc->plane, &crtc->base); + + return crtc; + +fail: + if (crtc) + omap_crtc_destroy(crtc); + + return NULL; +} diff --git a/drivers/gpu/drm/omapdrm/omap_debugfs.c b/drivers/gpu/drm/omapdrm/omap_debugfs.c new file mode 100644 index 000000000000..c0aa40f8ad6a --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_debugfs.c @@ -0,0 +1,139 @@ +/* + * drivers/gpu/drm/omapdrm/omap_debugfs.c + * + * Copyright (C) 2011 Texas Instruments + * Author: Rob Clark + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include "omap_drv.h" +#include "omap_dmm_tiler.h" + +#include "drm_fb_helper.h" + + +#ifdef CONFIG_DEBUG_FS + +static int gem_show(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct omap_drm_private *priv = dev->dev_private; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + seq_printf(m, "All Objects:\n"); + omap_gem_describe_objects(&priv->obj_list, m); + + mutex_unlock(&dev->struct_mutex); + + return 0; +} + +static int mm_show(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + return drm_mm_dump_table(m, dev->mm_private); +} + +static int fb_show(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct omap_drm_private *priv = dev->dev_private; + struct drm_framebuffer *fb; + int ret; + + ret = mutex_lock_interruptible(&dev->mode_config.mutex); + if (ret) + return ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) { + mutex_unlock(&dev->mode_config.mutex); + return ret; + } + + seq_printf(m, "fbcon "); + omap_framebuffer_describe(priv->fbdev->fb, m); + + mutex_lock(&dev->mode_config.fb_lock); + list_for_each_entry(fb, &dev->mode_config.fb_list, head) { + if (fb == priv->fbdev->fb) + continue; + + seq_printf(m, "user "); + omap_framebuffer_describe(fb, m); + } + mutex_unlock(&dev->mode_config.fb_lock); + + mutex_unlock(&dev->struct_mutex); + mutex_unlock(&dev->mode_config.mutex); + + return 0; +} + +/* list of debufs files that are applicable to all devices */ +static struct drm_info_list omap_debugfs_list[] = { + {"gem", gem_show, 0}, + {"mm", mm_show, 0}, + {"fb", fb_show, 0}, +}; + +/* list of debugfs files that are specific to devices with dmm/tiler */ +static struct drm_info_list omap_dmm_debugfs_list[] = { + {"tiler_map", tiler_map_show, 0}, +}; + +int omap_debugfs_init(struct drm_minor *minor) +{ + struct drm_device *dev = minor->dev; + int ret; + + ret = drm_debugfs_create_files(omap_debugfs_list, + ARRAY_SIZE(omap_debugfs_list), + minor->debugfs_root, minor); + + if (ret) { + dev_err(dev->dev, "could not install omap_debugfs_list\n"); + return ret; + } + + if (dmm_is_available()) + ret = drm_debugfs_create_files(omap_dmm_debugfs_list, + ARRAY_SIZE(omap_dmm_debugfs_list), + minor->debugfs_root, minor); + + if (ret) { + dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n"); + return ret; + } + + return ret; +} + +void omap_debugfs_cleanup(struct drm_minor *minor) +{ + drm_debugfs_remove_files(omap_debugfs_list, + ARRAY_SIZE(omap_debugfs_list), minor); + if (dmm_is_available()) + drm_debugfs_remove_files(omap_dmm_debugfs_list, + ARRAY_SIZE(omap_dmm_debugfs_list), minor); +} + +#endif diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_priv.h b/drivers/gpu/drm/omapdrm/omap_dmm_priv.h new file mode 100644 index 000000000000..58bcd6ae0255 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_dmm_priv.h @@ -0,0 +1,188 @@ +/* + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * Author: Rob Clark + * Andy Gross + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#ifndef OMAP_DMM_PRIV_H +#define OMAP_DMM_PRIV_H + +#define DMM_REVISION 0x000 +#define DMM_HWINFO 0x004 +#define DMM_LISA_HWINFO 0x008 +#define DMM_DMM_SYSCONFIG 0x010 +#define DMM_LISA_LOCK 0x01C +#define DMM_LISA_MAP__0 0x040 +#define DMM_LISA_MAP__1 0x044 +#define DMM_TILER_HWINFO 0x208 +#define DMM_TILER_OR__0 0x220 +#define DMM_TILER_OR__1 0x224 +#define DMM_PAT_HWINFO 0x408 +#define DMM_PAT_GEOMETRY 0x40C +#define DMM_PAT_CONFIG 0x410 +#define DMM_PAT_VIEW__0 0x420 +#define DMM_PAT_VIEW__1 0x424 +#define DMM_PAT_VIEW_MAP__0 0x440 +#define DMM_PAT_VIEW_MAP_BASE 0x460 +#define DMM_PAT_IRQ_EOI 0x478 +#define DMM_PAT_IRQSTATUS_RAW 0x480 +#define DMM_PAT_IRQSTATUS 0x490 +#define DMM_PAT_IRQENABLE_SET 0x4A0 +#define DMM_PAT_IRQENABLE_CLR 0x4B0 +#define DMM_PAT_STATUS__0 0x4C0 +#define DMM_PAT_STATUS__1 0x4C4 +#define DMM_PAT_STATUS__2 0x4C8 +#define DMM_PAT_STATUS__3 0x4CC +#define DMM_PAT_DESCR__0 0x500 +#define DMM_PAT_DESCR__1 0x510 +#define DMM_PAT_DESCR__2 0x520 +#define DMM_PAT_DESCR__3 0x530 +#define DMM_PEG_HWINFO 0x608 +#define DMM_PEG_PRIO 0x620 +#define DMM_PEG_PRIO_PAT 0x640 + +#define DMM_IRQSTAT_DST (1<<0) +#define DMM_IRQSTAT_LST (1<<1) +#define DMM_IRQSTAT_ERR_INV_DSC (1<<2) +#define DMM_IRQSTAT_ERR_INV_DATA (1<<3) +#define DMM_IRQSTAT_ERR_UPD_AREA (1<<4) +#define DMM_IRQSTAT_ERR_UPD_CTRL (1<<5) +#define DMM_IRQSTAT_ERR_UPD_DATA (1<<6) +#define DMM_IRQSTAT_ERR_LUT_MISS (1<<7) + +#define DMM_IRQSTAT_ERR_MASK (DMM_IRQ_STAT_ERR_INV_DSC | \ + DMM_IRQ_STAT_ERR_INV_DATA | \ + DMM_IRQ_STAT_ERR_UPD_AREA | \ + DMM_IRQ_STAT_ERR_UPD_CTRL | \ + DMM_IRQ_STAT_ERR_UPD_DATA | \ + DMM_IRQ_STAT_ERR_LUT_MISS) + +#define DMM_PATSTATUS_READY (1<<0) +#define DMM_PATSTATUS_VALID (1<<1) +#define DMM_PATSTATUS_RUN (1<<2) +#define DMM_PATSTATUS_DONE (1<<3) +#define DMM_PATSTATUS_LINKED (1<<4) +#define DMM_PATSTATUS_BYPASSED (1<<7) +#define DMM_PATSTATUS_ERR_INV_DESCR (1<<10) +#define DMM_PATSTATUS_ERR_INV_DATA (1<<11) +#define DMM_PATSTATUS_ERR_UPD_AREA (1<<12) +#define DMM_PATSTATUS_ERR_UPD_CTRL (1<<13) +#define DMM_PATSTATUS_ERR_UPD_DATA (1<<14) +#define DMM_PATSTATUS_ERR_ACCESS (1<<15) + +/* note: don't treat DMM_PATSTATUS_ERR_ACCESS as an error */ +#define DMM_PATSTATUS_ERR (DMM_PATSTATUS_ERR_INV_DESCR | \ + DMM_PATSTATUS_ERR_INV_DATA | \ + DMM_PATSTATUS_ERR_UPD_AREA | \ + DMM_PATSTATUS_ERR_UPD_CTRL | \ + DMM_PATSTATUS_ERR_UPD_DATA) + + + +enum { + PAT_STATUS, + PAT_DESCR +}; + +struct pat_ctrl { + u32 start:4; + u32 dir:4; + u32 lut_id:8; + u32 sync:12; + u32 ini:4; +}; + +struct pat { + uint32_t next_pa; + struct pat_area area; + struct pat_ctrl ctrl; + uint32_t data_pa; +}; + +#define DMM_FIXED_RETRY_COUNT 1000 + +/* create refill buffer big enough to refill all slots, plus 3 descriptors.. + * 3 descriptors is probably the worst-case for # of 2d-slices in a 1d area, + * but I guess you don't hit that worst case at the same time as full area + * refill + */ +#define DESCR_SIZE 128 +#define REFILL_BUFFER_SIZE ((4 * 128 * 256) + (3 * DESCR_SIZE)) + +/* For OMAP5, a fixed offset is added to all Y coordinates for 1D buffers. + * This is used in programming to address the upper portion of the LUT +*/ +#define OMAP5_LUT_OFFSET 128 + +struct dmm; + +struct dmm_txn { + void *engine_handle; + struct tcm *tcm; + + uint8_t *current_va; + dma_addr_t current_pa; + + struct pat *last_pat; +}; + +struct refill_engine { + int id; + struct dmm *dmm; + struct tcm *tcm; + + uint8_t *refill_va; + dma_addr_t refill_pa; + + /* only one trans per engine for now */ + struct dmm_txn txn; + + bool async; + + wait_queue_head_t wait_for_refill; + + struct list_head idle_node; +}; + +struct dmm { + struct device *dev; + void __iomem *base; + int irq; + + struct page *dummy_page; + dma_addr_t dummy_pa; + + void *refill_va; + dma_addr_t refill_pa; + + /* refill engines */ + wait_queue_head_t engine_queue; + struct list_head idle_head; + struct refill_engine *engines; + int num_engines; + atomic_t engine_counter; + + /* container information */ + int container_width; + int container_height; + int lut_width; + int lut_height; + int num_lut; + + /* array of LUT - TCM containers */ + struct tcm **tcm; + + /* allocation list and lock */ + struct list_head alloc_head; +}; + +#endif diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c new file mode 100644 index 000000000000..391021537105 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c @@ -0,0 +1,991 @@ +/* + * DMM IOMMU driver support functions for TI OMAP processors. + * + * Author: Rob Clark + * Andy Gross + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include +#include +#include /* platform_device() */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "omap_dmm_tiler.h" +#include "omap_dmm_priv.h" + +#define DMM_DRIVER_NAME "dmm" + +/* mappings for associating views to luts */ +static struct tcm *containers[TILFMT_NFORMATS]; +static struct dmm *omap_dmm; + +/* global spinlock for protecting lists */ +static DEFINE_SPINLOCK(list_lock); + +/* Geometry table */ +#define GEOM(xshift, yshift, bytes_per_pixel) { \ + .x_shft = (xshift), \ + .y_shft = (yshift), \ + .cpp = (bytes_per_pixel), \ + .slot_w = 1 << (SLOT_WIDTH_BITS - (xshift)), \ + .slot_h = 1 << (SLOT_HEIGHT_BITS - (yshift)), \ + } + +static const struct { + uint32_t x_shft; /* unused X-bits (as part of bpp) */ + uint32_t y_shft; /* unused Y-bits (as part of bpp) */ + uint32_t cpp; /* bytes/chars per pixel */ + uint32_t slot_w; /* width of each slot (in pixels) */ + uint32_t slot_h; /* height of each slot (in pixels) */ +} geom[TILFMT_NFORMATS] = { + [TILFMT_8BIT] = GEOM(0, 0, 1), + [TILFMT_16BIT] = GEOM(0, 1, 2), + [TILFMT_32BIT] = GEOM(1, 1, 4), + [TILFMT_PAGE] = GEOM(SLOT_WIDTH_BITS, SLOT_HEIGHT_BITS, 1), +}; + + +/* lookup table for registers w/ per-engine instances */ +static const uint32_t reg[][4] = { + [PAT_STATUS] = {DMM_PAT_STATUS__0, DMM_PAT_STATUS__1, + DMM_PAT_STATUS__2, DMM_PAT_STATUS__3}, + [PAT_DESCR] = {DMM_PAT_DESCR__0, DMM_PAT_DESCR__1, + DMM_PAT_DESCR__2, DMM_PAT_DESCR__3}, +}; + +/* simple allocator to grab next 16 byte aligned memory from txn */ +static void *alloc_dma(struct dmm_txn *txn, size_t sz, dma_addr_t *pa) +{ + void *ptr; + struct refill_engine *engine = txn->engine_handle; + + /* dmm programming requires 16 byte aligned addresses */ + txn->current_pa = round_up(txn->current_pa, 16); + txn->current_va = (void *)round_up((long)txn->current_va, 16); + + ptr = txn->current_va; + *pa = txn->current_pa; + + txn->current_pa += sz; + txn->current_va += sz; + + BUG_ON((txn->current_va - engine->refill_va) > REFILL_BUFFER_SIZE); + + return ptr; +} + +/* check status and spin until wait_mask comes true */ +static int wait_status(struct refill_engine *engine, uint32_t wait_mask) +{ + struct dmm *dmm = engine->dmm; + uint32_t r = 0, err, i; + + i = DMM_FIXED_RETRY_COUNT; + while (true) { + r = readl(dmm->base + reg[PAT_STATUS][engine->id]); + err = r & DMM_PATSTATUS_ERR; + if (err) + return -EFAULT; + + if ((r & wait_mask) == wait_mask) + break; + + if (--i == 0) + return -ETIMEDOUT; + + udelay(1); + } + + return 0; +} + +static void release_engine(struct refill_engine *engine) +{ + unsigned long flags; + + spin_lock_irqsave(&list_lock, flags); + list_add(&engine->idle_node, &omap_dmm->idle_head); + spin_unlock_irqrestore(&list_lock, flags); + + atomic_inc(&omap_dmm->engine_counter); + wake_up_interruptible(&omap_dmm->engine_queue); +} + +static irqreturn_t omap_dmm_irq_handler(int irq, void *arg) +{ + struct dmm *dmm = arg; + uint32_t status = readl(dmm->base + DMM_PAT_IRQSTATUS); + int i; + + /* ack IRQ */ + writel(status, dmm->base + DMM_PAT_IRQSTATUS); + + for (i = 0; i < dmm->num_engines; i++) { + if (status & DMM_IRQSTAT_LST) { + wake_up_interruptible(&dmm->engines[i].wait_for_refill); + + if (dmm->engines[i].async) + release_engine(&dmm->engines[i]); + } + + status >>= 8; + } + + return IRQ_HANDLED; +} + +/** + * Get a handle for a DMM transaction + */ +static struct dmm_txn *dmm_txn_init(struct dmm *dmm, struct tcm *tcm) +{ + struct dmm_txn *txn = NULL; + struct refill_engine *engine = NULL; + int ret; + unsigned long flags; + + + /* wait until an engine is available */ + ret = wait_event_interruptible(omap_dmm->engine_queue, + atomic_add_unless(&omap_dmm->engine_counter, -1, 0)); + if (ret) + return ERR_PTR(ret); + + /* grab an idle engine */ + spin_lock_irqsave(&list_lock, flags); + if (!list_empty(&dmm->idle_head)) { + engine = list_entry(dmm->idle_head.next, struct refill_engine, + idle_node); + list_del(&engine->idle_node); + } + spin_unlock_irqrestore(&list_lock, flags); + + BUG_ON(!engine); + + txn = &engine->txn; + engine->tcm = tcm; + txn->engine_handle = engine; + txn->last_pat = NULL; + txn->current_va = engine->refill_va; + txn->current_pa = engine->refill_pa; + + return txn; +} + +/** + * Add region to DMM transaction. If pages or pages[i] is NULL, then the + * corresponding slot is cleared (ie. dummy_pa is programmed) + */ +static void dmm_txn_append(struct dmm_txn *txn, struct pat_area *area, + struct page **pages, uint32_t npages, uint32_t roll) +{ + dma_addr_t pat_pa = 0; + uint32_t *data; + struct pat *pat; + struct refill_engine *engine = txn->engine_handle; + int columns = (1 + area->x1 - area->x0); + int rows = (1 + area->y1 - area->y0); + int i = columns*rows; + + pat = alloc_dma(txn, sizeof(struct pat), &pat_pa); + + if (txn->last_pat) + txn->last_pat->next_pa = (uint32_t)pat_pa; + + pat->area = *area; + + /* adjust Y coordinates based off of container parameters */ + pat->area.y0 += engine->tcm->y_offset; + pat->area.y1 += engine->tcm->y_offset; + + pat->ctrl = (struct pat_ctrl){ + .start = 1, + .lut_id = engine->tcm->lut_id, + }; + + data = alloc_dma(txn, 4*i, &pat->data_pa); + + while (i--) { + int n = i + roll; + if (n >= npages) + n -= npages; + data[i] = (pages && pages[n]) ? + page_to_phys(pages[n]) : engine->dmm->dummy_pa; + } + + txn->last_pat = pat; + + return; +} + +/** + * Commit the DMM transaction. + */ +static int dmm_txn_commit(struct dmm_txn *txn, bool wait) +{ + int ret = 0; + struct refill_engine *engine = txn->engine_handle; + struct dmm *dmm = engine->dmm; + + if (!txn->last_pat) { + dev_err(engine->dmm->dev, "need at least one txn\n"); + ret = -EINVAL; + goto cleanup; + } + + txn->last_pat->next_pa = 0; + + /* write to PAT_DESCR to clear out any pending transaction */ + writel(0x0, dmm->base + reg[PAT_DESCR][engine->id]); + + /* wait for engine ready: */ + ret = wait_status(engine, DMM_PATSTATUS_READY); + if (ret) { + ret = -EFAULT; + goto cleanup; + } + + /* mark whether it is async to denote list management in IRQ handler */ + engine->async = wait ? false : true; + + /* kick reload */ + writel(engine->refill_pa, + dmm->base + reg[PAT_DESCR][engine->id]); + + if (wait) { + if (wait_event_interruptible_timeout(engine->wait_for_refill, + wait_status(engine, DMM_PATSTATUS_READY) == 0, + msecs_to_jiffies(1)) <= 0) { + dev_err(dmm->dev, "timed out waiting for done\n"); + ret = -ETIMEDOUT; + } + } + +cleanup: + /* only place engine back on list if we are done with it */ + if (ret || wait) + release_engine(engine); + + return ret; +} + +/* + * DMM programming + */ +static int fill(struct tcm_area *area, struct page **pages, + uint32_t npages, uint32_t roll, bool wait) +{ + int ret = 0; + struct tcm_area slice, area_s; + struct dmm_txn *txn; + + txn = dmm_txn_init(omap_dmm, area->tcm); + if (IS_ERR_OR_NULL(txn)) + return -ENOMEM; + + tcm_for_each_slice(slice, *area, area_s) { + struct pat_area p_area = { + .x0 = slice.p0.x, .y0 = slice.p0.y, + .x1 = slice.p1.x, .y1 = slice.p1.y, + }; + + dmm_txn_append(txn, &p_area, pages, npages, roll); + + roll += tcm_sizeof(slice); + } + + ret = dmm_txn_commit(txn, wait); + + return ret; +} + +/* + * Pin/unpin + */ + +/* note: slots for which pages[i] == NULL are filled w/ dummy page + */ +int tiler_pin(struct tiler_block *block, struct page **pages, + uint32_t npages, uint32_t roll, bool wait) +{ + int ret; + + ret = fill(&block->area, pages, npages, roll, wait); + + if (ret) + tiler_unpin(block); + + return ret; +} + +int tiler_unpin(struct tiler_block *block) +{ + return fill(&block->area, NULL, 0, 0, false); +} + +/* + * Reserve/release + */ +struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, + uint16_t h, uint16_t align) +{ + struct tiler_block *block = kzalloc(sizeof(*block), GFP_KERNEL); + u32 min_align = 128; + int ret; + unsigned long flags; + + BUG_ON(!validfmt(fmt)); + + /* convert width/height to slots */ + w = DIV_ROUND_UP(w, geom[fmt].slot_w); + h = DIV_ROUND_UP(h, geom[fmt].slot_h); + + /* convert alignment to slots */ + min_align = max(min_align, (geom[fmt].slot_w * geom[fmt].cpp)); + align = ALIGN(align, min_align); + align /= geom[fmt].slot_w * geom[fmt].cpp; + + block->fmt = fmt; + + ret = tcm_reserve_2d(containers[fmt], w, h, align, &block->area); + if (ret) { + kfree(block); + return ERR_PTR(-ENOMEM); + } + + /* add to allocation list */ + spin_lock_irqsave(&list_lock, flags); + list_add(&block->alloc_node, &omap_dmm->alloc_head); + spin_unlock_irqrestore(&list_lock, flags); + + return block; +} + +struct tiler_block *tiler_reserve_1d(size_t size) +{ + struct tiler_block *block = kzalloc(sizeof(*block), GFP_KERNEL); + int num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; + unsigned long flags; + + if (!block) + return ERR_PTR(-ENOMEM); + + block->fmt = TILFMT_PAGE; + + if (tcm_reserve_1d(containers[TILFMT_PAGE], num_pages, + &block->area)) { + kfree(block); + return ERR_PTR(-ENOMEM); + } + + spin_lock_irqsave(&list_lock, flags); + list_add(&block->alloc_node, &omap_dmm->alloc_head); + spin_unlock_irqrestore(&list_lock, flags); + + return block; +} + +/* note: if you have pin'd pages, you should have already unpin'd first! */ +int tiler_release(struct tiler_block *block) +{ + int ret = tcm_free(&block->area); + unsigned long flags; + + if (block->area.tcm) + dev_err(omap_dmm->dev, "failed to release block\n"); + + spin_lock_irqsave(&list_lock, flags); + list_del(&block->alloc_node); + spin_unlock_irqrestore(&list_lock, flags); + + kfree(block); + return ret; +} + +/* + * Utils + */ + +/* calculate the tiler space address of a pixel in a view orientation... + * below description copied from the display subsystem section of TRM: + * + * When the TILER is addressed, the bits: + * [28:27] = 0x0 for 8-bit tiled + * 0x1 for 16-bit tiled + * 0x2 for 32-bit tiled + * 0x3 for page mode + * [31:29] = 0x0 for 0-degree view + * 0x1 for 180-degree view + mirroring + * 0x2 for 0-degree view + mirroring + * 0x3 for 180-degree view + * 0x4 for 270-degree view + mirroring + * 0x5 for 270-degree view + * 0x6 for 90-degree view + * 0x7 for 90-degree view + mirroring + * Otherwise the bits indicated the corresponding bit address to access + * the SDRAM. + */ +static u32 tiler_get_address(enum tiler_fmt fmt, u32 orient, u32 x, u32 y) +{ + u32 x_bits, y_bits, tmp, x_mask, y_mask, alignment; + + x_bits = CONT_WIDTH_BITS - geom[fmt].x_shft; + y_bits = CONT_HEIGHT_BITS - geom[fmt].y_shft; + alignment = geom[fmt].x_shft + geom[fmt].y_shft; + + /* validate coordinate */ + x_mask = MASK(x_bits); + y_mask = MASK(y_bits); + + if (x < 0 || x > x_mask || y < 0 || y > y_mask) { + DBG("invalid coords: %u < 0 || %u > %u || %u < 0 || %u > %u", + x, x, x_mask, y, y, y_mask); + return 0; + } + + /* account for mirroring */ + if (orient & MASK_X_INVERT) + x ^= x_mask; + if (orient & MASK_Y_INVERT) + y ^= y_mask; + + /* get coordinate address */ + if (orient & MASK_XY_FLIP) + tmp = ((x << y_bits) + y); + else + tmp = ((y << x_bits) + x); + + return TIL_ADDR((tmp << alignment), orient, fmt); +} + +dma_addr_t tiler_ssptr(struct tiler_block *block) +{ + BUG_ON(!validfmt(block->fmt)); + + return TILVIEW_8BIT + tiler_get_address(block->fmt, 0, + block->area.p0.x * geom[block->fmt].slot_w, + block->area.p0.y * geom[block->fmt].slot_h); +} + +dma_addr_t tiler_tsptr(struct tiler_block *block, uint32_t orient, + uint32_t x, uint32_t y) +{ + struct tcm_pt *p = &block->area.p0; + BUG_ON(!validfmt(block->fmt)); + + return tiler_get_address(block->fmt, orient, + (p->x * geom[block->fmt].slot_w) + x, + (p->y * geom[block->fmt].slot_h) + y); +} + +void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h) +{ + BUG_ON(!validfmt(fmt)); + *w = round_up(*w, geom[fmt].slot_w); + *h = round_up(*h, geom[fmt].slot_h); +} + +uint32_t tiler_stride(enum tiler_fmt fmt, uint32_t orient) +{ + BUG_ON(!validfmt(fmt)); + + if (orient & MASK_XY_FLIP) + return 1 << (CONT_HEIGHT_BITS + geom[fmt].x_shft); + else + return 1 << (CONT_WIDTH_BITS + geom[fmt].y_shft); +} + +size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h) +{ + tiler_align(fmt, &w, &h); + return geom[fmt].cpp * w * h; +} + +size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h) +{ + BUG_ON(!validfmt(fmt)); + return round_up(geom[fmt].cpp * w, PAGE_SIZE) * h; +} + +bool dmm_is_available(void) +{ + return omap_dmm ? true : false; +} + +static int omap_dmm_remove(struct platform_device *dev) +{ + struct tiler_block *block, *_block; + int i; + unsigned long flags; + + if (omap_dmm) { + /* free all area regions */ + spin_lock_irqsave(&list_lock, flags); + list_for_each_entry_safe(block, _block, &omap_dmm->alloc_head, + alloc_node) { + list_del(&block->alloc_node); + kfree(block); + } + spin_unlock_irqrestore(&list_lock, flags); + + for (i = 0; i < omap_dmm->num_lut; i++) + if (omap_dmm->tcm && omap_dmm->tcm[i]) + omap_dmm->tcm[i]->deinit(omap_dmm->tcm[i]); + kfree(omap_dmm->tcm); + + kfree(omap_dmm->engines); + if (omap_dmm->refill_va) + dma_free_writecombine(omap_dmm->dev, + REFILL_BUFFER_SIZE * omap_dmm->num_engines, + omap_dmm->refill_va, + omap_dmm->refill_pa); + if (omap_dmm->dummy_page) + __free_page(omap_dmm->dummy_page); + + if (omap_dmm->irq > 0) + free_irq(omap_dmm->irq, omap_dmm); + + iounmap(omap_dmm->base); + kfree(omap_dmm); + omap_dmm = NULL; + } + + return 0; +} + +static int omap_dmm_probe(struct platform_device *dev) +{ + int ret = -EFAULT, i; + struct tcm_area area = {0}; + u32 hwinfo, pat_geom; + struct resource *mem; + + omap_dmm = kzalloc(sizeof(*omap_dmm), GFP_KERNEL); + if (!omap_dmm) { + dev_err(&dev->dev, "failed to allocate driver data section\n"); + goto fail; + } + + /* initialize lists */ + INIT_LIST_HEAD(&omap_dmm->alloc_head); + INIT_LIST_HEAD(&omap_dmm->idle_head); + + init_waitqueue_head(&omap_dmm->engine_queue); + + /* lookup hwmod data - base address and irq */ + mem = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&dev->dev, "failed to get base address resource\n"); + goto fail; + } + + omap_dmm->base = ioremap(mem->start, SZ_2K); + + if (!omap_dmm->base) { + dev_err(&dev->dev, "failed to get dmm base address\n"); + goto fail; + } + + omap_dmm->irq = platform_get_irq(dev, 0); + if (omap_dmm->irq < 0) { + dev_err(&dev->dev, "failed to get IRQ resource\n"); + goto fail; + } + + omap_dmm->dev = &dev->dev; + + hwinfo = readl(omap_dmm->base + DMM_PAT_HWINFO); + omap_dmm->num_engines = (hwinfo >> 24) & 0x1F; + omap_dmm->num_lut = (hwinfo >> 16) & 0x1F; + omap_dmm->container_width = 256; + omap_dmm->container_height = 128; + + atomic_set(&omap_dmm->engine_counter, omap_dmm->num_engines); + + /* read out actual LUT width and height */ + pat_geom = readl(omap_dmm->base + DMM_PAT_GEOMETRY); + omap_dmm->lut_width = ((pat_geom >> 16) & 0xF) << 5; + omap_dmm->lut_height = ((pat_geom >> 24) & 0xF) << 5; + + /* increment LUT by one if on OMAP5 */ + /* LUT has twice the height, and is split into a separate container */ + if (omap_dmm->lut_height != omap_dmm->container_height) + omap_dmm->num_lut++; + + /* initialize DMM registers */ + writel(0x88888888, omap_dmm->base + DMM_PAT_VIEW__0); + writel(0x88888888, omap_dmm->base + DMM_PAT_VIEW__1); + writel(0x80808080, omap_dmm->base + DMM_PAT_VIEW_MAP__0); + writel(0x80000000, omap_dmm->base + DMM_PAT_VIEW_MAP_BASE); + writel(0x88888888, omap_dmm->base + DMM_TILER_OR__0); + writel(0x88888888, omap_dmm->base + DMM_TILER_OR__1); + + ret = request_irq(omap_dmm->irq, omap_dmm_irq_handler, IRQF_SHARED, + "omap_dmm_irq_handler", omap_dmm); + + if (ret) { + dev_err(&dev->dev, "couldn't register IRQ %d, error %d\n", + omap_dmm->irq, ret); + omap_dmm->irq = -1; + goto fail; + } + + /* Enable all interrupts for each refill engine except + * ERR_LUT_MISS (which is just advisory, and we don't care + * about because we want to be able to refill live scanout + * buffers for accelerated pan/scroll) and FILL_DSC which + * we just generally don't care about. + */ + writel(0x7e7e7e7e, omap_dmm->base + DMM_PAT_IRQENABLE_SET); + + omap_dmm->dummy_page = alloc_page(GFP_KERNEL | __GFP_DMA32); + if (!omap_dmm->dummy_page) { + dev_err(&dev->dev, "could not allocate dummy page\n"); + ret = -ENOMEM; + goto fail; + } + + /* set dma mask for device */ + /* NOTE: this is a workaround for the hwmod not initializing properly */ + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + + omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page); + + /* alloc refill memory */ + omap_dmm->refill_va = dma_alloc_writecombine(&dev->dev, + REFILL_BUFFER_SIZE * omap_dmm->num_engines, + &omap_dmm->refill_pa, GFP_KERNEL); + if (!omap_dmm->refill_va) { + dev_err(&dev->dev, "could not allocate refill memory\n"); + goto fail; + } + + /* alloc engines */ + omap_dmm->engines = kzalloc( + omap_dmm->num_engines * sizeof(struct refill_engine), + GFP_KERNEL); + if (!omap_dmm->engines) { + dev_err(&dev->dev, "could not allocate engines\n"); + ret = -ENOMEM; + goto fail; + } + + for (i = 0; i < omap_dmm->num_engines; i++) { + omap_dmm->engines[i].id = i; + omap_dmm->engines[i].dmm = omap_dmm; + omap_dmm->engines[i].refill_va = omap_dmm->refill_va + + (REFILL_BUFFER_SIZE * i); + omap_dmm->engines[i].refill_pa = omap_dmm->refill_pa + + (REFILL_BUFFER_SIZE * i); + init_waitqueue_head(&omap_dmm->engines[i].wait_for_refill); + + list_add(&omap_dmm->engines[i].idle_node, &omap_dmm->idle_head); + } + + omap_dmm->tcm = kzalloc(omap_dmm->num_lut * sizeof(*omap_dmm->tcm), + GFP_KERNEL); + if (!omap_dmm->tcm) { + dev_err(&dev->dev, "failed to allocate lut ptrs\n"); + ret = -ENOMEM; + goto fail; + } + + /* init containers */ + /* Each LUT is associated with a TCM (container manager). We use the + lut_id to denote the lut_id used to identify the correct LUT for + programming during reill operations */ + for (i = 0; i < omap_dmm->num_lut; i++) { + omap_dmm->tcm[i] = sita_init(omap_dmm->container_width, + omap_dmm->container_height, + NULL); + + if (!omap_dmm->tcm[i]) { + dev_err(&dev->dev, "failed to allocate container\n"); + ret = -ENOMEM; + goto fail; + } + + omap_dmm->tcm[i]->lut_id = i; + } + + /* assign access mode containers to applicable tcm container */ + /* OMAP 4 has 1 container for all 4 views */ + /* OMAP 5 has 2 containers, 1 for 2D and 1 for 1D */ + containers[TILFMT_8BIT] = omap_dmm->tcm[0]; + containers[TILFMT_16BIT] = omap_dmm->tcm[0]; + containers[TILFMT_32BIT] = omap_dmm->tcm[0]; + + if (omap_dmm->container_height != omap_dmm->lut_height) { + /* second LUT is used for PAGE mode. Programming must use + y offset that is added to all y coordinates. LUT id is still + 0, because it is the same LUT, just the upper 128 lines */ + containers[TILFMT_PAGE] = omap_dmm->tcm[1]; + omap_dmm->tcm[1]->y_offset = OMAP5_LUT_OFFSET; + omap_dmm->tcm[1]->lut_id = 0; + } else { + containers[TILFMT_PAGE] = omap_dmm->tcm[0]; + } + + area = (struct tcm_area) { + .tcm = NULL, + .p1.x = omap_dmm->container_width - 1, + .p1.y = omap_dmm->container_height - 1, + }; + + /* initialize all LUTs to dummy page entries */ + for (i = 0; i < omap_dmm->num_lut; i++) { + area.tcm = omap_dmm->tcm[i]; + if (fill(&area, NULL, 0, 0, true)) + dev_err(omap_dmm->dev, "refill failed"); + } + + dev_info(omap_dmm->dev, "initialized all PAT entries\n"); + + return 0; + +fail: + if (omap_dmm_remove(dev)) + dev_err(&dev->dev, "cleanup failed\n"); + return ret; +} + +/* + * debugfs support + */ + +#ifdef CONFIG_DEBUG_FS + +static const char *alphabet = "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; +static const char *special = ".,:;'\"`~!^-+"; + +static void fill_map(char **map, int xdiv, int ydiv, struct tcm_area *a, + char c, bool ovw) +{ + int x, y; + for (y = a->p0.y / ydiv; y <= a->p1.y / ydiv; y++) + for (x = a->p0.x / xdiv; x <= a->p1.x / xdiv; x++) + if (map[y][x] == ' ' || ovw) + map[y][x] = c; +} + +static void fill_map_pt(char **map, int xdiv, int ydiv, struct tcm_pt *p, + char c) +{ + map[p->y / ydiv][p->x / xdiv] = c; +} + +static char read_map_pt(char **map, int xdiv, int ydiv, struct tcm_pt *p) +{ + return map[p->y / ydiv][p->x / xdiv]; +} + +static int map_width(int xdiv, int x0, int x1) +{ + return (x1 / xdiv) - (x0 / xdiv) + 1; +} + +static void text_map(char **map, int xdiv, char *nice, int yd, int x0, int x1) +{ + char *p = map[yd] + (x0 / xdiv); + int w = (map_width(xdiv, x0, x1) - strlen(nice)) / 2; + if (w >= 0) { + p += w; + while (*nice) + *p++ = *nice++; + } +} + +static void map_1d_info(char **map, int xdiv, int ydiv, char *nice, + struct tcm_area *a) +{ + sprintf(nice, "%dK", tcm_sizeof(*a) * 4); + if (a->p0.y + 1 < a->p1.y) { + text_map(map, xdiv, nice, (a->p0.y + a->p1.y) / 2 / ydiv, 0, + 256 - 1); + } else if (a->p0.y < a->p1.y) { + if (strlen(nice) < map_width(xdiv, a->p0.x, 256 - 1)) + text_map(map, xdiv, nice, a->p0.y / ydiv, + a->p0.x + xdiv, 256 - 1); + else if (strlen(nice) < map_width(xdiv, 0, a->p1.x)) + text_map(map, xdiv, nice, a->p1.y / ydiv, + 0, a->p1.y - xdiv); + } else if (strlen(nice) + 1 < map_width(xdiv, a->p0.x, a->p1.x)) { + text_map(map, xdiv, nice, a->p0.y / ydiv, a->p0.x, a->p1.x); + } +} + +static void map_2d_info(char **map, int xdiv, int ydiv, char *nice, + struct tcm_area *a) +{ + sprintf(nice, "(%d*%d)", tcm_awidth(*a), tcm_aheight(*a)); + if (strlen(nice) + 1 < map_width(xdiv, a->p0.x, a->p1.x)) + text_map(map, xdiv, nice, (a->p0.y + a->p1.y) / 2 / ydiv, + a->p0.x, a->p1.x); +} + +int tiler_map_show(struct seq_file *s, void *arg) +{ + int xdiv = 2, ydiv = 1; + char **map = NULL, *global_map; + struct tiler_block *block; + struct tcm_area a, p; + int i; + const char *m2d = alphabet; + const char *a2d = special; + const char *m2dp = m2d, *a2dp = a2d; + char nice[128]; + int h_adj; + int w_adj; + unsigned long flags; + int lut_idx; + + + if (!omap_dmm) { + /* early return if dmm/tiler device is not initialized */ + return 0; + } + + h_adj = omap_dmm->container_height / ydiv; + w_adj = omap_dmm->container_width / xdiv; + + map = kmalloc(h_adj * sizeof(*map), GFP_KERNEL); + global_map = kmalloc((w_adj + 1) * h_adj, GFP_KERNEL); + + if (!map || !global_map) + goto error; + + for (lut_idx = 0; lut_idx < omap_dmm->num_lut; lut_idx++) { + memset(map, 0, sizeof(h_adj * sizeof(*map))); + memset(global_map, ' ', (w_adj + 1) * h_adj); + + for (i = 0; i < omap_dmm->container_height; i++) { + map[i] = global_map + i * (w_adj + 1); + map[i][w_adj] = 0; + } + + spin_lock_irqsave(&list_lock, flags); + + list_for_each_entry(block, &omap_dmm->alloc_head, alloc_node) { + if (block->area.tcm == omap_dmm->tcm[lut_idx]) { + if (block->fmt != TILFMT_PAGE) { + fill_map(map, xdiv, ydiv, &block->area, + *m2dp, true); + if (!*++a2dp) + a2dp = a2d; + if (!*++m2dp) + m2dp = m2d; + map_2d_info(map, xdiv, ydiv, nice, + &block->area); + } else { + bool start = read_map_pt(map, xdiv, + ydiv, &block->area.p0) == ' '; + bool end = read_map_pt(map, xdiv, ydiv, + &block->area.p1) == ' '; + + tcm_for_each_slice(a, block->area, p) + fill_map(map, xdiv, ydiv, &a, + '=', true); + fill_map_pt(map, xdiv, ydiv, + &block->area.p0, + start ? '<' : 'X'); + fill_map_pt(map, xdiv, ydiv, + &block->area.p1, + end ? '>' : 'X'); + map_1d_info(map, xdiv, ydiv, nice, + &block->area); + } + } + } + + spin_unlock_irqrestore(&list_lock, flags); + + if (s) { + seq_printf(s, "CONTAINER %d DUMP BEGIN\n", lut_idx); + for (i = 0; i < 128; i++) + seq_printf(s, "%03d:%s\n", i, map[i]); + seq_printf(s, "CONTAINER %d DUMP END\n", lut_idx); + } else { + dev_dbg(omap_dmm->dev, "CONTAINER %d DUMP BEGIN\n", + lut_idx); + for (i = 0; i < 128; i++) + dev_dbg(omap_dmm->dev, "%03d:%s\n", i, map[i]); + dev_dbg(omap_dmm->dev, "CONTAINER %d DUMP END\n", + lut_idx); + } + } + +error: + kfree(map); + kfree(global_map); + + return 0; +} +#endif + +#ifdef CONFIG_PM +static int omap_dmm_resume(struct device *dev) +{ + struct tcm_area area; + int i; + + if (!omap_dmm) + return -ENODEV; + + area = (struct tcm_area) { + .tcm = NULL, + .p1.x = omap_dmm->container_width - 1, + .p1.y = omap_dmm->container_height - 1, + }; + + /* initialize all LUTs to dummy page entries */ + for (i = 0; i < omap_dmm->num_lut; i++) { + area.tcm = omap_dmm->tcm[i]; + if (fill(&area, NULL, 0, 0, true)) + dev_err(dev, "refill failed"); + } + + return 0; +} + +static const struct dev_pm_ops omap_dmm_pm_ops = { + .resume = omap_dmm_resume, +}; +#endif + +struct platform_driver omap_dmm_driver = { + .probe = omap_dmm_probe, + .remove = omap_dmm_remove, + .driver = { + .owner = THIS_MODULE, + .name = DMM_DRIVER_NAME, +#ifdef CONFIG_PM + .pm = &omap_dmm_pm_ops, +#endif + }, +}; + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Andy Gross "); +MODULE_DESCRIPTION("OMAP DMM/Tiler Driver"); +MODULE_ALIAS("platform:" DMM_DRIVER_NAME); diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h new file mode 100644 index 000000000000..4fdd61e54bd2 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h @@ -0,0 +1,141 @@ +/* + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * Author: Rob Clark + * Andy Gross + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#ifndef OMAP_DMM_TILER_H +#define OMAP_DMM_TILER_H + +#include "omap_drv.h" +#include "tcm.h" + +enum tiler_fmt { + TILFMT_8BIT = 0, + TILFMT_16BIT, + TILFMT_32BIT, + TILFMT_PAGE, + TILFMT_NFORMATS +}; + +struct pat_area { + u32 x0:8; + u32 y0:8; + u32 x1:8; + u32 y1:8; +}; + +struct tiler_block { + struct list_head alloc_node; /* node for global block list */ + struct tcm_area area; /* area */ + enum tiler_fmt fmt; /* format */ +}; + +/* bits representing the same slot in DMM-TILER hw-block */ +#define SLOT_WIDTH_BITS 6 +#define SLOT_HEIGHT_BITS 6 + +/* bits reserved to describe coordinates in DMM-TILER hw-block */ +#define CONT_WIDTH_BITS 14 +#define CONT_HEIGHT_BITS 13 + +/* calculated constants */ +#define TILER_PAGE (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS)) +#define TILER_WIDTH (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS)) +#define TILER_HEIGHT (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS)) + +/* +Table 15-11. Coding and Description of TILER Orientations +S Y X Description Alternate description +0 0 0 0-degree view Natural view +0 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror +0 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror +0 1 1 180-degree view +1 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror +1 0 1 270-degree view +1 1 0 90-degree view +1 1 1 90-degree view with horizontal mirror 270-degree view with vertical mirror + */ +#define MASK_XY_FLIP (1 << 31) +#define MASK_Y_INVERT (1 << 30) +#define MASK_X_INVERT (1 << 29) +#define SHIFT_ACC_MODE 27 +#define MASK_ACC_MODE 3 + +#define MASK(bits) ((1 << (bits)) - 1) + +#define TILVIEW_8BIT 0x60000000u +#define TILVIEW_16BIT (TILVIEW_8BIT + VIEW_SIZE) +#define TILVIEW_32BIT (TILVIEW_16BIT + VIEW_SIZE) +#define TILVIEW_PAGE (TILVIEW_32BIT + VIEW_SIZE) +#define TILVIEW_END (TILVIEW_PAGE + VIEW_SIZE) + +/* create tsptr by adding view orientation and access mode */ +#define TIL_ADDR(x, orient, a)\ + ((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE)) + +#ifdef CONFIG_DEBUG_FS +int tiler_map_show(struct seq_file *s, void *arg); +#endif + +/* pin/unpin */ +int tiler_pin(struct tiler_block *block, struct page **pages, + uint32_t npages, uint32_t roll, bool wait); +int tiler_unpin(struct tiler_block *block); + +/* reserve/release */ +struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, uint16_t h, + uint16_t align); +struct tiler_block *tiler_reserve_1d(size_t size); +int tiler_release(struct tiler_block *block); + +/* utilities */ +dma_addr_t tiler_ssptr(struct tiler_block *block); +dma_addr_t tiler_tsptr(struct tiler_block *block, uint32_t orient, + uint32_t x, uint32_t y); +uint32_t tiler_stride(enum tiler_fmt fmt, uint32_t orient); +size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h); +size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h); +void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h); +bool dmm_is_available(void); + +extern struct platform_driver omap_dmm_driver; + +/* GEM bo flags -> tiler fmt */ +static inline enum tiler_fmt gem2fmt(uint32_t flags) +{ + switch (flags & OMAP_BO_TILED) { + case OMAP_BO_TILED_8: + return TILFMT_8BIT; + case OMAP_BO_TILED_16: + return TILFMT_16BIT; + case OMAP_BO_TILED_32: + return TILFMT_32BIT; + default: + return TILFMT_PAGE; + } +} + +static inline bool validfmt(enum tiler_fmt fmt) +{ + switch (fmt) { + case TILFMT_8BIT: + case TILFMT_16BIT: + case TILFMT_32BIT: + case TILFMT_PAGE: + return true; + default: + return false; + } +} + +#endif diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c new file mode 100644 index 000000000000..9083538bd16a --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -0,0 +1,610 @@ +/* + * drivers/gpu/drm/omapdrm/omap_drv.c + * + * Copyright (C) 2011 Texas Instruments + * Author: Rob Clark + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include "omap_drv.h" + +#include "drm_crtc_helper.h" +#include "drm_fb_helper.h" +#include "omap_dmm_tiler.h" + +#define DRIVER_NAME MODULE_NAME +#define DRIVER_DESC "OMAP DRM" +#define DRIVER_DATE "20110917" +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 0 + +static int num_crtc = CONFIG_DRM_OMAP_NUM_CRTCS; + +MODULE_PARM_DESC(num_crtc, "Number of overlays to use as CRTCs"); +module_param(num_crtc, int, 0600); + +/* + * mode config funcs + */ + +/* Notes about mapping DSS and DRM entities: + * CRTC: overlay + * encoder: manager.. with some extension to allow one primary CRTC + * and zero or more video CRTC's to be mapped to one encoder? + * connector: dssdev.. manager can be attached/detached from different + * devices + */ + +static void omap_fb_output_poll_changed(struct drm_device *dev) +{ + struct omap_drm_private *priv = dev->dev_private; + DBG("dev=%p", dev); + if (priv->fbdev) + drm_fb_helper_hotplug_event(priv->fbdev); +} + +static const struct drm_mode_config_funcs omap_mode_config_funcs = { + .fb_create = omap_framebuffer_create, + .output_poll_changed = omap_fb_output_poll_changed, +}; + +static int get_connector_type(struct omap_dss_device *dssdev) +{ + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_HDMI: + return DRM_MODE_CONNECTOR_HDMIA; + case OMAP_DISPLAY_TYPE_DPI: + if (!strcmp(dssdev->name, "dvi")) + return DRM_MODE_CONNECTOR_DVID; + /* fallthrough */ + default: + return DRM_MODE_CONNECTOR_Unknown; + } +} + +static int omap_modeset_init(struct drm_device *dev) +{ + struct omap_drm_private *priv = dev->dev_private; + struct omap_dss_device *dssdev = NULL; + int num_ovls = dss_feat_get_num_ovls(); + int id; + + drm_mode_config_init(dev); + + omap_drm_irq_install(dev); + + /* + * Create private planes and CRTCs for the last NUM_CRTCs overlay + * plus manager: + */ + for (id = 0; id < min(num_crtc, num_ovls); id++) { + struct drm_plane *plane; + struct drm_crtc *crtc; + + plane = omap_plane_init(dev, id, true); + crtc = omap_crtc_init(dev, plane, pipe2chan(id), id); + + BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs)); + priv->crtcs[id] = crtc; + priv->num_crtcs++; + + priv->planes[id] = plane; + priv->num_planes++; + } + + /* + * Create normal planes for the remaining overlays: + */ + for (; id < num_ovls; id++) { + struct drm_plane *plane = omap_plane_init(dev, id, false); + + BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes)); + priv->planes[priv->num_planes++] = plane; + } + + for_each_dss_dev(dssdev) { + struct drm_connector *connector; + struct drm_encoder *encoder; + + if (!dssdev->driver) { + dev_warn(dev->dev, "%s has no driver.. skipping it\n", + dssdev->name); + return 0; + } + + if (!(dssdev->driver->get_timings || + dssdev->driver->read_edid)) { + dev_warn(dev->dev, "%s driver does not support " + "get_timings or read_edid.. skipping it!\n", + dssdev->name); + return 0; + } + + encoder = omap_encoder_init(dev, dssdev); + + if (!encoder) { + dev_err(dev->dev, "could not create encoder: %s\n", + dssdev->name); + return -ENOMEM; + } + + connector = omap_connector_init(dev, + get_connector_type(dssdev), dssdev, encoder); + + if (!connector) { + dev_err(dev->dev, "could not create connector: %s\n", + dssdev->name); + return -ENOMEM; + } + + BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders)); + BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors)); + + priv->encoders[priv->num_encoders++] = encoder; + priv->connectors[priv->num_connectors++] = connector; + + drm_mode_connector_attach_encoder(connector, encoder); + + /* figure out which crtc's we can connect the encoder to: */ + encoder->possible_crtcs = 0; + for (id = 0; id < priv->num_crtcs; id++) { + enum omap_dss_output_id supported_outputs = + dss_feat_get_supported_outputs(pipe2chan(id)); + if (supported_outputs & dssdev->output->id) + encoder->possible_crtcs |= (1 << id); + } + } + + dev->mode_config.min_width = 32; + dev->mode_config.min_height = 32; + + /* note: eventually will need some cpu_is_omapXYZ() type stuff here + * to fill in these limits properly on different OMAP generations.. + */ + dev->mode_config.max_width = 2048; + dev->mode_config.max_height = 2048; + + dev->mode_config.funcs = &omap_mode_config_funcs; + + return 0; +} + +static void omap_modeset_free(struct drm_device *dev) +{ + drm_mode_config_cleanup(dev); +} + +/* + * drm ioctl funcs + */ + + +static int ioctl_get_param(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct omap_drm_private *priv = dev->dev_private; + struct drm_omap_param *args = data; + + DBG("%p: param=%llu", dev, args->param); + + switch (args->param) { + case OMAP_PARAM_CHIPSET_ID: + args->value = priv->omaprev; + break; + default: + DBG("unknown parameter %lld", args->param); + return -EINVAL; + } + + return 0; +} + +static int ioctl_set_param(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_omap_param *args = data; + + switch (args->param) { + default: + DBG("unknown parameter %lld", args->param); + return -EINVAL; + } + + return 0; +} + +static int ioctl_gem_new(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_omap_gem_new *args = data; + VERB("%p:%p: size=0x%08x, flags=%08x", dev, file_priv, + args->size.bytes, args->flags); + return omap_gem_new_handle(dev, file_priv, args->size, + args->flags, &args->handle); +} + +static int ioctl_gem_cpu_prep(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_omap_gem_cpu_prep *args = data; + struct drm_gem_object *obj; + int ret; + + VERB("%p:%p: handle=%d, op=%x", dev, file_priv, args->handle, args->op); + + obj = drm_gem_object_lookup(dev, file_priv, args->handle); + if (!obj) + return -ENOENT; + + ret = omap_gem_op_sync(obj, args->op); + + if (!ret) + ret = omap_gem_op_start(obj, args->op); + + drm_gem_object_unreference_unlocked(obj); + + return ret; +} + +static int ioctl_gem_cpu_fini(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_omap_gem_cpu_fini *args = data; + struct drm_gem_object *obj; + int ret; + + VERB("%p:%p: handle=%d", dev, file_priv, args->handle); + + obj = drm_gem_object_lookup(dev, file_priv, args->handle); + if (!obj) + return -ENOENT; + + /* XXX flushy, flushy */ + ret = 0; + + if (!ret) + ret = omap_gem_op_finish(obj, args->op); + + drm_gem_object_unreference_unlocked(obj); + + return ret; +} + +static int ioctl_gem_info(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_omap_gem_info *args = data; + struct drm_gem_object *obj; + int ret = 0; + + VERB("%p:%p: handle=%d", dev, file_priv, args->handle); + + obj = drm_gem_object_lookup(dev, file_priv, args->handle); + if (!obj) + return -ENOENT; + + args->size = omap_gem_mmap_size(obj); + args->offset = omap_gem_mmap_offset(obj); + + drm_gem_object_unreference_unlocked(obj); + + return ret; +} + +struct drm_ioctl_desc ioctls[DRM_COMMAND_END - DRM_COMMAND_BASE] = { + DRM_IOCTL_DEF_DRV(OMAP_GET_PARAM, ioctl_get_param, DRM_UNLOCKED|DRM_AUTH), + DRM_IOCTL_DEF_DRV(OMAP_SET_PARAM, ioctl_set_param, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF_DRV(OMAP_GEM_NEW, ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH), + DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_PREP, ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH), + DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_FINI, ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH), + DRM_IOCTL_DEF_DRV(OMAP_GEM_INFO, ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH), +}; + +/* + * drm driver funcs + */ + +/** + * load - setup chip and create an initial config + * @dev: DRM device + * @flags: startup flags + * + * The driver load routine has to do several things: + * - initialize the memory manager + * - allocate initial config memory + * - setup the DRM framebuffer with the allocated memory + */ +static int dev_load(struct drm_device *dev, unsigned long flags) +{ + struct omap_drm_platform_data *pdata = dev->dev->platform_data; + struct omap_drm_private *priv; + int ret; + + DBG("load: dev=%p", dev); + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(dev->dev, "could not allocate priv\n"); + return -ENOMEM; + } + + priv->omaprev = pdata->omaprev; + + dev->dev_private = priv; + + priv->wq = alloc_ordered_workqueue("omapdrm", 0); + + INIT_LIST_HEAD(&priv->obj_list); + + omap_gem_init(dev); + + ret = omap_modeset_init(dev); + if (ret) { + dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret); + dev->dev_private = NULL; + kfree(priv); + return ret; + } + + ret = drm_vblank_init(dev, priv->num_crtcs); + if (ret) + dev_warn(dev->dev, "could not init vblank\n"); + + priv->fbdev = omap_fbdev_init(dev); + if (!priv->fbdev) { + dev_warn(dev->dev, "omap_fbdev_init failed\n"); + /* well, limp along without an fbdev.. maybe X11 will work? */ + } + + /* store off drm_device for use in pm ops */ + dev_set_drvdata(dev->dev, dev); + + drm_kms_helper_poll_init(dev); + + return 0; +} + +static int dev_unload(struct drm_device *dev) +{ + struct omap_drm_private *priv = dev->dev_private; + + DBG("unload: dev=%p", dev); + + drm_kms_helper_poll_fini(dev); + drm_vblank_cleanup(dev); + omap_drm_irq_uninstall(dev); + + omap_fbdev_free(dev); + omap_modeset_free(dev); + omap_gem_deinit(dev); + + flush_workqueue(priv->wq); + destroy_workqueue(priv->wq); + + kfree(dev->dev_private); + dev->dev_private = NULL; + + dev_set_drvdata(dev->dev, NULL); + + return 0; +} + +static int dev_open(struct drm_device *dev, struct drm_file *file) +{ + file->driver_priv = NULL; + + DBG("open: dev=%p, file=%p", dev, file); + + return 0; +} + +static int dev_firstopen(struct drm_device *dev) +{ + DBG("firstopen: dev=%p", dev); + return 0; +} + +/** + * lastclose - clean up after all DRM clients have exited + * @dev: DRM device + * + * Take care of cleaning up after all DRM clients have exited. In the + * mode setting case, we want to restore the kernel's initial mode (just + * in case the last client left us in a bad state). + */ +static void dev_lastclose(struct drm_device *dev) +{ + int i; + + /* we don't support vga-switcheroo.. so just make sure the fbdev + * mode is active + */ + struct omap_drm_private *priv = dev->dev_private; + int ret; + + DBG("lastclose: dev=%p", dev); + + if (priv->rotation_prop) { + /* need to restore default rotation state.. not sure + * if there is a cleaner way to restore properties to + * default state? Maybe a flag that properties should + * automatically be restored to default state on + * lastclose? + */ + for (i = 0; i < priv->num_crtcs; i++) { + drm_object_property_set_value(&priv->crtcs[i]->base, + priv->rotation_prop, 0); + } + + for (i = 0; i < priv->num_planes; i++) { + drm_object_property_set_value(&priv->planes[i]->base, + priv->rotation_prop, 0); + } + } + + drm_modeset_lock_all(dev); + ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev); + drm_modeset_unlock_all(dev); + if (ret) + DBG("failed to restore crtc mode"); +} + +static void dev_preclose(struct drm_device *dev, struct drm_file *file) +{ + DBG("preclose: dev=%p", dev); +} + +static void dev_postclose(struct drm_device *dev, struct drm_file *file) +{ + DBG("postclose: dev=%p, file=%p", dev, file); +} + +static const struct vm_operations_struct omap_gem_vm_ops = { + .fault = omap_gem_fault, + .open = drm_gem_vm_open, + .close = drm_gem_vm_close, +}; + +static const struct file_operations omapdriver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .unlocked_ioctl = drm_ioctl, + .release = drm_release, + .mmap = omap_gem_mmap, + .poll = drm_poll, + .fasync = drm_fasync, + .read = drm_read, + .llseek = noop_llseek, +}; + +static struct drm_driver omap_drm_driver = { + .driver_features = + DRIVER_HAVE_IRQ | DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, + .load = dev_load, + .unload = dev_unload, + .open = dev_open, + .firstopen = dev_firstopen, + .lastclose = dev_lastclose, + .preclose = dev_preclose, + .postclose = dev_postclose, + .get_vblank_counter = drm_vblank_count, + .enable_vblank = omap_irq_enable_vblank, + .disable_vblank = omap_irq_disable_vblank, + .irq_preinstall = omap_irq_preinstall, + .irq_postinstall = omap_irq_postinstall, + .irq_uninstall = omap_irq_uninstall, + .irq_handler = omap_irq_handler, +#ifdef CONFIG_DEBUG_FS + .debugfs_init = omap_debugfs_init, + .debugfs_cleanup = omap_debugfs_cleanup, +#endif + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_prime_export = omap_gem_prime_export, + .gem_prime_import = omap_gem_prime_import, + .gem_init_object = omap_gem_init_object, + .gem_free_object = omap_gem_free_object, + .gem_vm_ops = &omap_gem_vm_ops, + .dumb_create = omap_gem_dumb_create, + .dumb_map_offset = omap_gem_dumb_map_offset, + .dumb_destroy = omap_gem_dumb_destroy, + .ioctls = ioctls, + .num_ioctls = DRM_OMAP_NUM_IOCTLS, + .fops = &omapdriver_fops, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, +}; + +static int pdev_suspend(struct platform_device *pDevice, pm_message_t state) +{ + DBG(""); + return 0; +} + +static int pdev_resume(struct platform_device *device) +{ + DBG(""); + return 0; +} + +static void pdev_shutdown(struct platform_device *device) +{ + DBG(""); +} + +static int pdev_probe(struct platform_device *device) +{ + DBG("%s", device->name); + return drm_platform_init(&omap_drm_driver, device); +} + +static int pdev_remove(struct platform_device *device) +{ + DBG(""); + drm_platform_exit(&omap_drm_driver, device); + + platform_driver_unregister(&omap_dmm_driver); + return 0; +} + +#ifdef CONFIG_PM +static const struct dev_pm_ops omapdrm_pm_ops = { + .resume = omap_gem_resume, +}; +#endif + +struct platform_driver pdev = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, +#ifdef CONFIG_PM + .pm = &omapdrm_pm_ops, +#endif + }, + .probe = pdev_probe, + .remove = pdev_remove, + .suspend = pdev_suspend, + .resume = pdev_resume, + .shutdown = pdev_shutdown, +}; + +static int __init omap_drm_init(void) +{ + DBG("init"); + if (platform_driver_register(&omap_dmm_driver)) { + /* we can continue on without DMM.. so not fatal */ + dev_err(NULL, "DMM registration failed\n"); + } + return platform_driver_register(&pdev); +} + +static void __exit omap_drm_fini(void) +{ + DBG("fini"); + platform_driver_unregister(&pdev); +} + +/* need late_initcall() so we load after dss_driver's are loaded */ +late_initcall(omap_drm_init); +module_exit(omap_drm_fini); + +MODULE_AUTHOR("Rob Clark "); +MODULE_DESCRIPTION("OMAP DRM Display Driver"); +MODULE_ALIAS("platform:" DRIVER_NAME); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h new file mode 100644 index 000000000000..d4f997bb4ac0 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_drv.h @@ -0,0 +1,333 @@ +/* + * drivers/gpu/drm/omapdrm/omap_drv.h + * + * Copyright (C) 2011 Texas Instruments + * Author: Rob Clark + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef __OMAP_DRV_H__ +#define __OMAP_DRV_H__ + +#include