renesas/periject.git - Renesas periject clone

path: root/wiki/2017-05-miniperi

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author	Geert Uytterhoeven <geert+renesas@glider.be>	2021-02-02 16:44:00 +0100
committer	Geert Uytterhoeven <geert+renesas@glider.be>	2021-02-02 17:12:03 +0100
commit	5394cc90826f6c562540da08dea031aa10360498 (patch)
tree	880a2035cf0e1a6e0a67bda42dcde7a8b4658dc9 /wiki/2017-05-miniperi
parent	9810806c1de07e8946115191117682593febf040 (diff)

projects: linux: io: r8a77961: Fix bad lore link

Lore links should specify the Message-ID, not the full URL. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
 */
/*
 *
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
#include "intel_drv.h"
#include "i915_drv.h"

#include "drm_pciids.h"

static struct pci_device_id pciidlist[] = {
	i915_PCI_IDS
};

unsigned int i915_modeset = 0;
module_param_named(modeset, i915_modeset, int, 0400);

unsigned int i915_fbpercrtc = 0;
module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);

unsigned int i915_rightof = 1;
module_param_named(i915_rightof, i915_rightof, int, 0400);

#ifdef I915_HAVE_FENCE
extern struct drm_fence_driver i915_fence_driver;
#endif

#ifdef I915_HAVE_BUFFER

static uint32_t i915_mem_prios[] = {DRM_BO_MEM_VRAM, DRM_BO_MEM_TT, DRM_BO_MEM_LOCAL};
static uint32_t i915_busy_prios[] = {DRM_BO_MEM_TT, DRM_BO_MEM_VRAM, DRM_BO_MEM_LOCAL};

static struct drm_bo_driver i915_bo_driver = {
	.mem_type_prio = i915_mem_prios,
	.mem_busy_prio = i915_busy_prios,
	.num_mem_type_prio = sizeof(i915_mem_prios)/sizeof(uint32_t),
	.num_mem_busy_prio = sizeof(i915_busy_prios)/sizeof(uint32_t),
	.create_ttm_backend_entry = i915_create_ttm_backend_entry,
	.fence_type = i915_fence_type,
	.invalidate_caches = i915_invalidate_caches,
	.init_mem_type = i915_init_mem_type,
	.evict_flags = i915_evict_flags,
	.move = i915_move,
	.ttm_cache_flush = i915_flush_ttm,
	.command_stream_barrier = NULL,
};
#endif

static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe)
{
	struct drm_i915_private *dev_priv = dev->dev_private;

	if (pipe == PIPE_A)
		return (I915_READ(DPLL_A) & DPLL_VCO_ENABLE);
	else
		return (I915_READ(DPLL_B) & DPLL_VCO_ENABLE);
}

static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B);
	u32 *array;
	int i;

	if (!i915_pipe_enabled(dev, pipe))
		return;

	if (pipe == PIPE_A)
		array = dev_priv->save_palette_a;
	else
		array = dev_priv->save_palette_b;

	for(i = 0; i < 256; i++)
		array[i] = I915_READ(reg + (i << 2));
}

static void i915_restore_palette(struct drm_device *dev, enum pipe pipe)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B);
	u32 *array;


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