Commit adc31849 authored by Dave Airlie's avatar Dave Airlie
Browse files

Merge tag 'drm-intel-next-2014-12-19' of git://anongit.freedesktop.org/drm-intel into drm-next 

- plane handling refactoring from Matt Roper and Gustavo Padovan in prep for
  atomic updates
- fixes and more patches for the seqno to request transformation from John
- docbook for fbc from Rodrigo
- prep work for dual-link dsi from Gaurav Signh
- crc fixes from Ville
- special ggtt views infrastructure from Tvrtko Ursulin
- shadow patch copying for the cmd parser from Brad Volkin
- execlist and full ppgtt by default on gen8, for testing for now

* tag 'drm-intel-next-2014-12-19' of git://anongit.freedesktop.org/drm-intel: (131 commits)
  drm/i915: Update DRIVER_DATE to 20141219
  drm/i915: Hold runtime PM during plane commit
  drm/i915: Organize bind_vma funcs
  drm/i915: Organize INSTDONE report for future.
  drm/i915: Organize PDP regs report for future.
  drm/i915: Organize PPGTT init
  drm/i915: Organize Fence registers for future enablement.
  drm/i915: tame the chattermouth (v2)
  drm/i915: Warn about missing context state workarounds only once
  drm/i915: Use true PPGTT in Gen8+ when execlists are enabled
  drm/i915: Skip gunit save/restore for cherryview
  drm/i915/chv: Use timeout mode for RC6 on chv
  drm/i915: Add GPGPU_THREADS_DISPATCHED to the register whitelist
  drm/i915: Tidy up execbuffer command parsing code
  drm/i915: Mark shadow batch buffers as purgeable
  drm/i915: Use batch length instead of object size in command parser
  drm/i915: Use batch pools with the command parser
  drm/i915: Implement a framework for batch buffer pools
  drm/i915: fix use after free during eDP encoder destroying
  drm/i915/skl: Skylake also supports DP MST
  ...
parents c93546a5 0e2cfc00

Documentation/DocBook/drm.tmpl

+15 −0
Original line number Diff line number Diff line
@@ -4035,6 +4035,11 @@ int num_ioctls;</synopsis> 
	<title>Panel Self Refresh PSR (PSR/SRD)</title>

!Pdrivers/gpu/drm/i915/intel_psr.c Panel Self Refresh (PSR/SRD)

!Idrivers/gpu/drm/i915/intel_psr.c

      </sect2>

      <sect2>

	<title>Frame Buffer Compression (FBC)</title>

!Pdrivers/gpu/drm/i915/intel_fbc.c Frame Buffer Compression (FBC)

!Idrivers/gpu/drm/i915/intel_fbc.c

      </sect2>

      <sect2>

        <title>DPIO</title>
@@ -4138,12 +4143,22 @@ int num_ioctls;</synopsis> 
        <title>Batchbuffer Parsing</title>

!Pdrivers/gpu/drm/i915/i915_cmd_parser.c batch buffer command parser

!Idrivers/gpu/drm/i915/i915_cmd_parser.c

      </sect2>

      <sect2>

        <title>Batchbuffer Pools</title>

!Pdrivers/gpu/drm/i915/i915_gem_batch_pool.c batch pool

!Idrivers/gpu/drm/i915/i915_gem_batch_pool.c

      </sect2>

      <sect2>

        <title>Logical Rings, Logical Ring Contexts and Execlists</title>

!Pdrivers/gpu/drm/i915/intel_lrc.c Logical Rings, Logical Ring Contexts and Execlists

!Idrivers/gpu/drm/i915/intel_lrc.c

      </sect2>

      <sect2>

        <title>Global GTT views</title>

!Pdrivers/gpu/drm/i915/i915_gem_gtt.c Global GTT views

!Idrivers/gpu/drm/i915/i915_gem_gtt.c

      </sect2>

    </sect1>



    <sect1>

drivers/gpu/drm/drm_crtc.c

+22 −10
Original line number Diff line number Diff line
@@ -2658,6 +2658,27 @@ int drm_mode_set_config_internal(struct drm_mode_set *set) 
}

EXPORT_SYMBOL(drm_mode_set_config_internal);



/**

 * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode

 * @mode: mode to query

 * @hdisplay: hdisplay value to fill in

 * @vdisplay: vdisplay value to fill in

 *

 * The vdisplay value will be doubled if the specified mode is a stereo mode of

 * the appropriate layout.

 */

void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,

			    int *hdisplay, int *vdisplay)

{

	struct drm_display_mode adjusted;



	drm_mode_copy(&adjusted, mode);

	drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY);

	*hdisplay = adjusted.crtc_hdisplay;

	*vdisplay = adjusted.crtc_vdisplay;

}

EXPORT_SYMBOL(drm_crtc_get_hv_timing);



/**

 * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the

 *     CRTC viewport
@@ -2675,16 +2696,7 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc, 
{

	int hdisplay, vdisplay;



	hdisplay = mode->hdisplay;

	vdisplay = mode->vdisplay;



	if (drm_mode_is_stereo(mode)) {

		struct drm_display_mode adjusted = *mode;



		drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);

		hdisplay = adjusted.crtc_hdisplay;

		vdisplay = adjusted.crtc_vdisplay;

	}

	drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);



	if (crtc->invert_dimensions)

		swap(hdisplay, vdisplay);

drivers/gpu/drm/drm_modes.c

+16 −10
Original line number Diff line number Diff line
@@ -739,6 +739,8 @@ EXPORT_SYMBOL(drm_mode_vrefresh); 
 * - The CRTC_STEREO_DOUBLE flag can be used to compute the timings for

 *   buffers containing two eyes (only adjust the timings when needed, eg. for

 *   "frame packing" or "side by side full").

 * - The CRTC_NO_DBLSCAN and CRTC_NO_VSCAN flags request that adjustment *not*

 *   be performed for doublescan and vscan > 1 modes respectively.

 */

void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags)

{
@@ -765,19 +767,23 @@ void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags) 
		}

	}



	if (!(adjust_flags & CRTC_NO_DBLSCAN)) {

		if (p->flags & DRM_MODE_FLAG_DBLSCAN) {

			p->crtc_vdisplay *= 2;

			p->crtc_vsync_start *= 2;

			p->crtc_vsync_end *= 2;

			p->crtc_vtotal *= 2;

		}

	}



	if (!(adjust_flags & CRTC_NO_VSCAN)) {

		if (p->vscan > 1) {

			p->crtc_vdisplay *= p->vscan;

			p->crtc_vsync_start *= p->vscan;

			p->crtc_vsync_end *= p->vscan;

			p->crtc_vtotal *= p->vscan;

		}

	}



	if (adjust_flags & CRTC_STEREO_DOUBLE) {

		unsigned int layout = p->flags & DRM_MODE_FLAG_3D_MASK;

drivers/gpu/drm/i915/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ i915-$(CONFIG_DEBUG_FS) += i915_debugfs.o 


# GEM code

i915-y += i915_cmd_parser.o \

	  i915_gem_batch_pool.o \

	  i915_gem_context.o \

	  i915_gem_render_state.o \

	  i915_gem_debug.o \
@@ -47,6 +48,7 @@ i915-y += intel_renderstate_gen6.o \ 
i915-y += intel_audio.o \

	  intel_bios.o \

	  intel_display.o \

	  intel_fbc.o \

	  intel_fifo_underrun.o \

	  intel_frontbuffer.o \

	  intel_modes.o \

drivers/gpu/drm/i915/i915_cmd_parser.c

+105 −26
Original line number Diff line number Diff line
@@ -152,6 +152,7 @@ static const struct drm_i915_cmd_descriptor render_cmds[] = { 
	CMD(  MI_PREDICATE,                     SMI,    F,  1,      S  ),

	CMD(  MI_TOPOLOGY_FILTER,               SMI,    F,  1,      S  ),

	CMD(  MI_DISPLAY_FLIP,                  SMI,   !F,  0xFF,   R  ),

	CMD(  MI_SET_APPID,                     SMI,    F,  1,      S  ),

	CMD(  MI_SET_CONTEXT,                   SMI,   !F,  0xFF,   R  ),

	CMD(  MI_URB_CLEAR,                     SMI,   !F,  0xFF,   S  ),

	CMD(  MI_STORE_DWORD_IMM,               SMI,   !F,  0x3F,   B,
@@ -210,6 +211,7 @@ static const struct drm_i915_cmd_descriptor hsw_render_cmds[] = { 
	CMD(  MI_SET_PREDICATE,                 SMI,    F,  1,      S  ),

	CMD(  MI_RS_CONTROL,                    SMI,    F,  1,      S  ),

	CMD(  MI_URB_ATOMIC_ALLOC,              SMI,    F,  1,      S  ),

	CMD(  MI_SET_APPID,                     SMI,    F,  1,      S  ),

	CMD(  MI_RS_CONTEXT,                    SMI,    F,  1,      S  ),

	CMD(  MI_LOAD_SCAN_LINES_INCL,          SMI,   !F,  0x3F,   M  ),

	CMD(  MI_LOAD_SCAN_LINES_EXCL,          SMI,   !F,  0x3F,   R  ),
@@ -229,6 +231,7 @@ static const struct drm_i915_cmd_descriptor hsw_render_cmds[] = { 


static const struct drm_i915_cmd_descriptor video_cmds[] = {

	CMD(  MI_ARB_ON_OFF,                    SMI,    F,  1,      R  ),

	CMD(  MI_SET_APPID,                     SMI,    F,  1,      S  ),

	CMD(  MI_STORE_DWORD_IMM,               SMI,   !F,  0xFF,   B,

	      .bits = {{

			.offset = 0,
@@ -272,6 +275,7 @@ static const struct drm_i915_cmd_descriptor video_cmds[] = { 


static const struct drm_i915_cmd_descriptor vecs_cmds[] = {

	CMD(  MI_ARB_ON_OFF,                    SMI,    F,  1,      R  ),

	CMD(  MI_SET_APPID,                     SMI,    F,  1,      S  ),

	CMD(  MI_STORE_DWORD_IMM,               SMI,   !F,  0xFF,   B,

	      .bits = {{

			.offset = 0,
@@ -401,6 +405,7 @@ static const struct drm_i915_cmd_table hsw_blt_ring_cmds[] = { 
#define REG64(addr) (addr), (addr + sizeof(u32))



static const u32 gen7_render_regs[] = {

	REG64(GPGPU_THREADS_DISPATCHED),

	REG64(HS_INVOCATION_COUNT),

	REG64(DS_INVOCATION_COUNT),

	REG64(IA_VERTICES_COUNT),
@@ -481,13 +486,17 @@ static u32 gen7_bsd_get_cmd_length_mask(u32 cmd_header) 
	u32 client = (cmd_header & INSTR_CLIENT_MASK) >> INSTR_CLIENT_SHIFT;

	u32 subclient =

		(cmd_header & INSTR_SUBCLIENT_MASK) >> INSTR_SUBCLIENT_SHIFT;

	u32 op = (cmd_header & INSTR_26_TO_24_MASK) >> INSTR_26_TO_24_SHIFT;



	if (client == INSTR_MI_CLIENT)

		return 0x3F;

	else if (client == INSTR_RC_CLIENT) {

		if (subclient == INSTR_MEDIA_SUBCLIENT)

			return 0xFFF;

		if (subclient == INSTR_MEDIA_SUBCLIENT) {

			if (op == 6)

				return 0xFFFF;

			else

				return 0xFFF;

		} else

			return 0xFF;

	}
@@ -716,14 +725,14 @@ int i915_cmd_parser_init_ring(struct intel_engine_cs *ring) 
	BUG_ON(!validate_cmds_sorted(ring, cmd_tables, cmd_table_count));

	BUG_ON(!validate_regs_sorted(ring));



	if (hash_empty(ring->cmd_hash)) {

	WARN_ON(!hash_empty(ring->cmd_hash));



	ret = init_hash_table(ring, cmd_tables, cmd_table_count);

	if (ret) {

		DRM_ERROR("CMD: cmd_parser_init failed!\n");

		fini_hash_table(ring);

		return ret;

	}

	}



	ring->needs_cmd_parser = true;
@@ -840,6 +849,69 @@ finish: 
	return (u32*)addr;

}



/* Returns a vmap'd pointer to dest_obj, which the caller must unmap */

static u32 *copy_batch(struct drm_i915_gem_object *dest_obj,

		       struct drm_i915_gem_object *src_obj,

		       u32 batch_start_offset,

		       u32 batch_len)

{

	int ret = 0;

	int needs_clflush = 0;

	u32 *src_base, *dest_base = NULL;

	u32 *src_addr, *dest_addr;

	u32 offset = batch_start_offset / sizeof(*dest_addr);

	u32 end = batch_start_offset + batch_len;



	if (end > dest_obj->base.size || end > src_obj->base.size)

		return ERR_PTR(-E2BIG);



	ret = i915_gem_obj_prepare_shmem_read(src_obj, &needs_clflush);

	if (ret) {

		DRM_DEBUG_DRIVER("CMD: failed to prep read\n");

		return ERR_PTR(ret);

	}



	src_base = vmap_batch(src_obj);

	if (!src_base) {

		DRM_DEBUG_DRIVER("CMD: Failed to vmap batch\n");

		ret = -ENOMEM;

		goto unpin_src;

	}



	src_addr = src_base + offset;



	if (needs_clflush)

		drm_clflush_virt_range((char *)src_addr, batch_len);



	ret = i915_gem_object_set_to_cpu_domain(dest_obj, true);

	if (ret) {

		DRM_DEBUG_DRIVER("CMD: Failed to set batch CPU domain\n");

		goto unmap_src;

	}



	dest_base = vmap_batch(dest_obj);

	if (!dest_base) {

		DRM_DEBUG_DRIVER("CMD: Failed to vmap shadow batch\n");

		ret = -ENOMEM;

		goto unmap_src;

	}



	dest_addr = dest_base + offset;



	if (batch_start_offset != 0)

		memset((u8 *)dest_base, 0, batch_start_offset);



	memcpy(dest_addr, src_addr, batch_len);

	memset((u8 *)dest_addr + batch_len, 0, dest_obj->base.size - end);



unmap_src:

	vunmap(src_base);

unpin_src:

	i915_gem_object_unpin_pages(src_obj);



	return ret ? ERR_PTR(ret) : dest_base;

}



/**

 * i915_needs_cmd_parser() - should a given ring use software command parsing?

 * @ring: the ring in question
@@ -956,7 +1028,9 @@ static bool check_cmd(const struct intel_engine_cs *ring, 
 * i915_parse_cmds() - parse a submitted batch buffer for privilege violations

 * @ring: the ring on which the batch is to execute

 * @batch_obj: the batch buffer in question

 * @shadow_batch_obj: copy of the batch buffer in question

 * @batch_start_offset: byte offset in the batch at which execution starts

 * @batch_len: length of the commands in batch_obj

 * @is_master: is the submitting process the drm master?

 *

 * Parses the specified batch buffer looking for privilege violations as
@@ -967,33 +1041,38 @@ static bool check_cmd(const struct intel_engine_cs *ring, 
 */

int i915_parse_cmds(struct intel_engine_cs *ring,

		    struct drm_i915_gem_object *batch_obj,

		    struct drm_i915_gem_object *shadow_batch_obj,

		    u32 batch_start_offset,

		    u32 batch_len,

		    bool is_master)

{

	int ret = 0;

	u32 *cmd, *batch_base, *batch_end;

	struct drm_i915_cmd_descriptor default_desc = { 0 };

	int needs_clflush = 0;

	bool oacontrol_set = false; /* OACONTROL tracking. See check_cmd() */



	ret = i915_gem_obj_prepare_shmem_read(batch_obj, &needs_clflush);

	ret = i915_gem_obj_ggtt_pin(shadow_batch_obj, 4096, 0);

	if (ret) {

		DRM_DEBUG_DRIVER("CMD: failed to prep read\n");

		return ret;

		DRM_DEBUG_DRIVER("CMD: Failed to pin shadow batch\n");

		return -1;

	}



	batch_base = vmap_batch(batch_obj);

	if (!batch_base) {

		DRM_DEBUG_DRIVER("CMD: Failed to vmap batch\n");

		i915_gem_object_unpin_pages(batch_obj);

		return -ENOMEM;

	batch_base = copy_batch(shadow_batch_obj, batch_obj,

				batch_start_offset, batch_len);

	if (IS_ERR(batch_base)) {

		DRM_DEBUG_DRIVER("CMD: Failed to copy batch\n");

		i915_gem_object_ggtt_unpin(shadow_batch_obj);

		return PTR_ERR(batch_base);

	}



	if (needs_clflush)

		drm_clflush_virt_range((char *)batch_base, batch_obj->base.size);



	cmd = batch_base + (batch_start_offset / sizeof(*cmd));

	batch_end = cmd + (batch_obj->base.size / sizeof(*batch_end));



	/*

	 * We use the batch length as size because the shadow object is as

	 * large or larger and copy_batch() will write MI_NOPs to the extra

	 * space. Parsing should be faster in some cases this way.

	 */

	batch_end = cmd + (batch_len / sizeof(*batch_end));



	while (cmd < batch_end) {

		const struct drm_i915_cmd_descriptor *desc;
@@ -1053,8 +1132,7 @@ int i915_parse_cmds(struct intel_engine_cs *ring, 
	}



	vunmap(batch_base);



	i915_gem_object_unpin_pages(batch_obj);

	i915_gem_object_ggtt_unpin(shadow_batch_obj);



	return ret;

}
@@ -1076,6 +1154,7 @@ int i915_cmd_parser_get_version(void) 
	 *    hardware parsing enabled (so does not allow new use cases).

	 * 2. Allow access to the MI_PREDICATE_SRC0 and

	 *    MI_PREDICATE_SRC1 registers.

	 * 3. Allow access to the GPGPU_THREADS_DISPATCHED register.

	 */

	return 2;

	return 3;

}

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