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path: root/drivers/gpu/drm/r128/r128_cce.c
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Diffstat (limited to 'drivers/gpu/drm/r128/r128_cce.c')
-rw-r--r--drivers/gpu/drm/r128/r128_cce.c935
1 files changed, 935 insertions, 0 deletions
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
new file mode 100644
index 00000000000..c31afbde62e
--- /dev/null
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -0,0 +1,935 @@
+/* r128_cce.c -- ATI Rage 128 driver -*- linux-c -*-
+ * Created: Wed Apr 5 19:24:19 2000 by kevin@precisioninsight.com
+ */
+/*
+ * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT 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.
+ *
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "r128_drm.h"
+#include "r128_drv.h"
+
+#define R128_FIFO_DEBUG 0
+
+/* CCE microcode (from ATI) */
+static u32 r128_cce_microcode[] = {
+ 0, 276838400, 0, 268449792, 2, 142, 2, 145, 0, 1076765731, 0,
+ 1617039951, 0, 774592877, 0, 1987540286, 0, 2307490946U, 0,
+ 599558925, 0, 589505315, 0, 596487092, 0, 589505315, 1,
+ 11544576, 1, 206848, 1, 311296, 1, 198656, 2, 912273422, 11,
+ 262144, 0, 0, 1, 33559837, 1, 7438, 1, 14809, 1, 6615, 12, 28,
+ 1, 6614, 12, 28, 2, 23, 11, 18874368, 0, 16790922, 1, 409600, 9,
+ 30, 1, 147854772, 16, 420483072, 3, 8192, 0, 10240, 1, 198656,
+ 1, 15630, 1, 51200, 10, 34858, 9, 42, 1, 33559823, 2, 10276, 1,
+ 15717, 1, 15718, 2, 43, 1, 15936948, 1, 570480831, 1, 14715071,
+ 12, 322123831, 1, 33953125, 12, 55, 1, 33559908, 1, 15718, 2,
+ 46, 4, 2099258, 1, 526336, 1, 442623, 4, 4194365, 1, 509952, 1,
+ 459007, 3, 0, 12, 92, 2, 46, 12, 176, 1, 15734, 1, 206848, 1,
+ 18432, 1, 133120, 1, 100670734, 1, 149504, 1, 165888, 1,
+ 15975928, 1, 1048576, 6, 3145806, 1, 15715, 16, 2150645232U, 2,
+ 268449859, 2, 10307, 12, 176, 1, 15734, 1, 15735, 1, 15630, 1,
+ 15631, 1, 5253120, 6, 3145810, 16, 2150645232U, 1, 15864, 2, 82,
+ 1, 343310, 1, 1064207, 2, 3145813, 1, 15728, 1, 7817, 1, 15729,
+ 3, 15730, 12, 92, 2, 98, 1, 16168, 1, 16167, 1, 16002, 1, 16008,
+ 1, 15974, 1, 15975, 1, 15990, 1, 15976, 1, 15977, 1, 15980, 0,
+ 15981, 1, 10240, 1, 5253120, 1, 15720, 1, 198656, 6, 110, 1,
+ 180224, 1, 103824738, 2, 112, 2, 3145839, 0, 536885440, 1,
+ 114880, 14, 125, 12, 206975, 1, 33559995, 12, 198784, 0,
+ 33570236, 1, 15803, 0, 15804, 3, 294912, 1, 294912, 3, 442370,
+ 1, 11544576, 0, 811612160, 1, 12593152, 1, 11536384, 1,
+ 14024704, 7, 310382726, 0, 10240, 1, 14796, 1, 14797, 1, 14793,
+ 1, 14794, 0, 14795, 1, 268679168, 1, 9437184, 1, 268449792, 1,
+ 198656, 1, 9452827, 1, 1075854602, 1, 1075854603, 1, 557056, 1,
+ 114880, 14, 159, 12, 198784, 1, 1109409213, 12, 198783, 1,
+ 1107312059, 12, 198784, 1, 1109409212, 2, 162, 1, 1075854781, 1,
+ 1073757627, 1, 1075854780, 1, 540672, 1, 10485760, 6, 3145894,
+ 16, 274741248, 9, 168, 3, 4194304, 3, 4209949, 0, 0, 0, 256, 14,
+ 174, 1, 114857, 1, 33560007, 12, 176, 0, 10240, 1, 114858, 1,
+ 33560018, 1, 114857, 3, 33560007, 1, 16008, 1, 114874, 1,
+ 33560360, 1, 114875, 1, 33560154, 0, 15963, 0, 256, 0, 4096, 1,
+ 409611, 9, 188, 0, 10240, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+static int R128_READ_PLL(struct drm_device * dev, int addr)
+{
+ drm_r128_private_t *dev_priv = dev->dev_private;
+
+ R128_WRITE8(R128_CLOCK_CNTL_INDEX, addr & 0x1f);
+ return R128_READ(R128_CLOCK_CNTL_DATA);
+}
+
+#if R128_FIFO_DEBUG
+static void r128_status(drm_r128_private_t * dev_priv)
+{
+ printk("GUI_STAT = 0x%08x\n",
+ (unsigned int)R128_READ(R128_GUI_STAT));
+ printk("PM4_STAT = 0x%08x\n",
+ (unsigned int)R128_READ(R128_PM4_STAT));
+ printk("PM4_BUFFER_DL_WPTR = 0x%08x\n",
+ (unsigned int)R128_READ(R128_PM4_BUFFER_DL_WPTR));
+ printk("PM4_BUFFER_DL_RPTR = 0x%08x\n",
+ (unsigned int)R128_READ(R128_PM4_BUFFER_DL_RPTR));
+ printk("PM4_MICRO_CNTL = 0x%08x\n",
+ (unsigned int)R128_READ(R128_PM4_MICRO_CNTL));
+ printk("PM4_BUFFER_CNTL = 0x%08x\n",
+ (unsigned int)R128_READ(R128_PM4_BUFFER_CNTL));
+}
+#endif
+
+/* ================================================================
+ * Engine, FIFO control
+ */
+
+static int r128_do_pixcache_flush(drm_r128_private_t * dev_priv)
+{
+ u32 tmp;
+ int i;
+
+ tmp = R128_READ(R128_PC_NGUI_CTLSTAT) | R128_PC_FLUSH_ALL;
+ R128_WRITE(R128_PC_NGUI_CTLSTAT, tmp);
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ if (!(R128_READ(R128_PC_NGUI_CTLSTAT) & R128_PC_BUSY)) {
+ return 0;
+ }
+ DRM_UDELAY(1);
+ }
+
+#if R128_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+#endif
+ return -EBUSY;
+}
+
+static int r128_do_wait_for_fifo(drm_r128_private_t * dev_priv, int entries)
+{
+ int i;
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ int slots = R128_READ(R128_GUI_STAT) & R128_GUI_FIFOCNT_MASK;
+ if (slots >= entries)
+ return 0;
+ DRM_UDELAY(1);
+ }
+
+#if R128_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+#endif
+ return -EBUSY;
+}
+
+static int r128_do_wait_for_idle(drm_r128_private_t * dev_priv)
+{
+ int i, ret;
+
+ ret = r128_do_wait_for_fifo(dev_priv, 64);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ if (!(R128_READ(R128_GUI_STAT) & R128_GUI_ACTIVE)) {
+ r128_do_pixcache_flush(dev_priv);
+ return 0;
+ }
+ DRM_UDELAY(1);
+ }
+
+#if R128_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+#endif
+ return -EBUSY;
+}
+
+/* ================================================================
+ * CCE control, initialization
+ */
+
+/* Load the microcode for the CCE */
+static void r128_cce_load_microcode(drm_r128_private_t * dev_priv)
+{
+ int i;
+
+ DRM_DEBUG("\n");
+
+ r128_do_wait_for_idle(dev_priv);
+
+ R128_WRITE(R128_PM4_MICROCODE_ADDR, 0);
+ for (i = 0; i < 256; i++) {
+ R128_WRITE(R128_PM4_MICROCODE_DATAH, r128_cce_microcode[i * 2]);
+ R128_WRITE(R128_PM4_MICROCODE_DATAL,
+ r128_cce_microcode[i * 2 + 1]);
+ }
+}
+
+/* Flush any pending commands to the CCE. This should only be used just
+ * prior to a wait for idle, as it informs the engine that the command
+ * stream is ending.
+ */
+static void r128_do_cce_flush(drm_r128_private_t * dev_priv)
+{
+ u32 tmp;
+
+ tmp = R128_READ(R128_PM4_BUFFER_DL_WPTR) | R128_PM4_BUFFER_DL_DONE;
+ R128_WRITE(R128_PM4_BUFFER_DL_WPTR, tmp);
+}
+
+/* Wait for the CCE to go idle.
+ */
+int r128_do_cce_idle(drm_r128_private_t * dev_priv)
+{
+ int i;
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ if (GET_RING_HEAD(dev_priv) == dev_priv->ring.tail) {
+ int pm4stat = R128_READ(R128_PM4_STAT);
+ if (((pm4stat & R128_PM4_FIFOCNT_MASK) >=
+ dev_priv->cce_fifo_size) &&
+ !(pm4stat & (R128_PM4_BUSY |
+ R128_PM4_GUI_ACTIVE))) {
+ return r128_do_pixcache_flush(dev_priv);
+ }
+ }
+ DRM_UDELAY(1);
+ }
+
+#if R128_FIFO_DEBUG
+ DRM_ERROR("failed!\n");
+ r128_status(dev_priv);
+#endif
+ return -EBUSY;
+}
+
+/* Start the Concurrent Command Engine.
+ */
+static void r128_do_cce_start(drm_r128_private_t * dev_priv)
+{
+ r128_do_wait_for_idle(dev_priv);
+
+ R128_WRITE(R128_PM4_BUFFER_CNTL,
+ dev_priv->cce_mode | dev_priv->ring.size_l2qw
+ | R128_PM4_BUFFER_CNTL_NOUPDATE);
+ R128_READ(R128_PM4_BUFFER_ADDR); /* as per the sample code */
+ R128_WRITE(R128_PM4_MICRO_CNTL, R128_PM4_MICRO_FREERUN);
+
+ dev_priv->cce_running = 1;
+}
+
+/* Reset the Concurrent Command Engine. This will not flush any pending
+ * commands, so you must wait for the CCE command stream to complete
+ * before calling this routine.
+ */
+static void r128_do_cce_reset(drm_r128_private_t * dev_priv)
+{
+ R128_WRITE(R128_PM4_BUFFER_DL_WPTR, 0);
+ R128_WRITE(R128_PM4_BUFFER_DL_RPTR, 0);
+ dev_priv->ring.tail = 0;
+}
+
+/* Stop the Concurrent Command Engine. This will not flush any pending
+ * commands, so you must flush the command stream and wait for the CCE
+ * to go idle before calling this routine.
+ */
+static void r128_do_cce_stop(drm_r128_private_t * dev_priv)
+{
+ R128_WRITE(R128_PM4_MICRO_CNTL, 0);
+ R128_WRITE(R128_PM4_BUFFER_CNTL,
+ R128_PM4_NONPM4 | R128_PM4_BUFFER_CNTL_NOUPDATE);
+
+ dev_priv->cce_running = 0;
+}
+
+/* Reset the engine. This will stop the CCE if it is running.
+ */
+static int r128_do_engine_reset(struct drm_device * dev)
+{
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ u32 clock_cntl_index, mclk_cntl, gen_reset_cntl;
+
+ r128_do_pixcache_flush(dev_priv);
+
+ clock_cntl_index = R128_READ(R128_CLOCK_CNTL_INDEX);
+ mclk_cntl = R128_READ_PLL(dev, R128_MCLK_CNTL);
+
+ R128_WRITE_PLL(R128_MCLK_CNTL,
+ mclk_cntl | R128_FORCE_GCP | R128_FORCE_PIPE3D_CP);
+
+ gen_reset_cntl = R128_READ(R128_GEN_RESET_CNTL);
+
+ /* Taken from the sample code - do not change */
+ R128_WRITE(R128_GEN_RESET_CNTL, gen_reset_cntl | R128_SOFT_RESET_GUI);
+ R128_READ(R128_GEN_RESET_CNTL);
+ R128_WRITE(R128_GEN_RESET_CNTL, gen_reset_cntl & ~R128_SOFT_RESET_GUI);
+ R128_READ(R128_GEN_RESET_CNTL);
+
+ R128_WRITE_PLL(R128_MCLK_CNTL, mclk_cntl);
+ R128_WRITE(R128_CLOCK_CNTL_INDEX, clock_cntl_index);
+ R128_WRITE(R128_GEN_RESET_CNTL, gen_reset_cntl);
+
+ /* Reset the CCE ring */
+ r128_do_cce_reset(dev_priv);
+
+ /* The CCE is no longer running after an engine reset */
+ dev_priv->cce_running = 0;
+
+ /* Reset any pending vertex, indirect buffers */
+ r128_freelist_reset(dev);
+
+ return 0;
+}
+
+static void r128_cce_init_ring_buffer(struct drm_device * dev,
+ drm_r128_private_t * dev_priv)
+{
+ u32 ring_start;
+ u32 tmp;
+
+ DRM_DEBUG("\n");
+
+ /* The manual (p. 2) says this address is in "VM space". This
+ * means it's an offset from the start of AGP space.
+ */
+#if __OS_HAS_AGP
+ if (!dev_priv->is_pci)
+ ring_start = dev_priv->cce_ring->offset - dev->agp->base;
+ else
+#endif
+ ring_start = dev_priv->cce_ring->offset -
+ (unsigned long)dev->sg->virtual;
+
+ R128_WRITE(R128_PM4_BUFFER_OFFSET, ring_start | R128_AGP_OFFSET);
+
+ R128_WRITE(R128_PM4_BUFFER_DL_WPTR, 0);
+ R128_WRITE(R128_PM4_BUFFER_DL_RPTR, 0);
+
+ /* Set watermark control */
+ R128_WRITE(R128_PM4_BUFFER_WM_CNTL,
+ ((R128_WATERMARK_L / 4) << R128_WMA_SHIFT)
+ | ((R128_WATERMARK_M / 4) << R128_WMB_SHIFT)
+ | ((R128_WATERMARK_N / 4) << R128_WMC_SHIFT)
+ | ((R128_WATERMARK_K / 64) << R128_WB_WM_SHIFT));
+
+ /* Force read. Why? Because it's in the examples... */
+ R128_READ(R128_PM4_BUFFER_ADDR);
+
+ /* Turn on bus mastering */
+ tmp = R128_READ(R128_BUS_CNTL) & ~R128_BUS_MASTER_DIS;
+ R128_WRITE(R128_BUS_CNTL, tmp);
+}
+
+static int r128_do_init_cce(struct drm_device * dev, drm_r128_init_t * init)
+{
+ drm_r128_private_t *dev_priv;
+
+ DRM_DEBUG("\n");
+
+ dev_priv = drm_alloc(sizeof(drm_r128_private_t), DRM_MEM_DRIVER);
+ if (dev_priv == NULL)
+ return -ENOMEM;
+
+ memset(dev_priv, 0, sizeof(drm_r128_private_t));
+
+ dev_priv->is_pci = init->is_pci;
+
+ if (dev_priv->is_pci && !dev->sg) {
+ DRM_ERROR("PCI GART memory not allocated!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->usec_timeout = init->usec_timeout;
+ if (dev_priv->usec_timeout < 1 ||
+ dev_priv->usec_timeout > R128_MAX_USEC_TIMEOUT) {
+ DRM_DEBUG("TIMEOUT problem!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->cce_mode = init->cce_mode;
+
+ /* GH: Simple idle check.
+ */
+ atomic_set(&dev_priv->idle_count, 0);
+
+ /* We don't support anything other than bus-mastering ring mode,
+ * but the ring can be in either AGP or PCI space for the ring
+ * read pointer.
+ */
+ if ((init->cce_mode != R128_PM4_192BM) &&
+ (init->cce_mode != R128_PM4_128BM_64INDBM) &&
+ (init->cce_mode != R128_PM4_64BM_128INDBM) &&
+ (init->cce_mode != R128_PM4_64BM_64VCBM_64INDBM)) {
+ DRM_DEBUG("Bad cce_mode!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+
+ switch (init->cce_mode) {
+ case R128_PM4_NONPM4:
+ dev_priv->cce_fifo_size = 0;
+ break;
+ case R128_PM4_192PIO:
+ case R128_PM4_192BM:
+ dev_priv->cce_fifo_size = 192;
+ break;
+ case R128_PM4_128PIO_64INDBM:
+ case R128_PM4_128BM_64INDBM:
+ dev_priv->cce_fifo_size = 128;
+ break;
+ case R128_PM4_64PIO_128INDBM:
+ case R128_PM4_64BM_128INDBM:
+ case R128_PM4_64PIO_64VCBM_64INDBM:
+ case R128_PM4_64BM_64VCBM_64INDBM:
+ case R128_PM4_64PIO_64VCPIO_64INDPIO:
+ dev_priv->cce_fifo_size = 64;
+ break;
+ }
+
+ switch (init->fb_bpp) {
+ case 16:
+ dev_priv->color_fmt = R128_DATATYPE_RGB565;
+ break;
+ case 32:
+ default:
+ dev_priv->color_fmt = R128_DATATYPE_ARGB8888;
+ break;
+ }
+ dev_priv->front_offset = init->front_offset;
+ dev_priv->front_pitch = init->front_pitch;
+ dev_priv->back_offset = init->back_offset;
+ dev_priv->back_pitch = init->back_pitch;
+
+ switch (init->depth_bpp) {
+ case 16:
+ dev_priv->depth_fmt = R128_DATATYPE_RGB565;
+ break;
+ case 24:
+ case 32:
+ default:
+ dev_priv->depth_fmt = R128_DATATYPE_ARGB8888;
+ break;
+ }
+ dev_priv->depth_offset = init->depth_offset;
+ dev_priv->depth_pitch = init->depth_pitch;
+ dev_priv->span_offset = init->span_offset;
+
+ dev_priv->front_pitch_offset_c = (((dev_priv->front_pitch / 8) << 21) |
+ (dev_priv->front_offset >> 5));
+ dev_priv->back_pitch_offset_c = (((dev_priv->back_pitch / 8) << 21) |
+ (dev_priv->back_offset >> 5));
+ dev_priv->depth_pitch_offset_c = (((dev_priv->depth_pitch / 8) << 21) |
+ (dev_priv->depth_offset >> 5) |
+ R128_DST_TILE);
+ dev_priv->span_pitch_offset_c = (((dev_priv->depth_pitch / 8) << 21) |
+ (dev_priv->span_offset >> 5));
+
+ dev_priv->sarea = drm_getsarea(dev);
+ if (!dev_priv->sarea) {
+ DRM_ERROR("could not find sarea!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset);
+ if (!dev_priv->mmio) {
+ DRM_ERROR("could not find mmio region!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+ dev_priv->cce_ring = drm_core_findmap(dev, init->ring_offset);
+ if (!dev_priv->cce_ring) {
+ DRM_ERROR("could not find cce ring region!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+ dev_priv->ring_rptr = drm_core_findmap(dev, init->ring_rptr_offset);
+ if (!dev_priv->ring_rptr) {
+ DRM_ERROR("could not find ring read pointer!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+ dev->agp_buffer_token = init->buffers_offset;
+ dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
+ if (!dev->agp_buffer_map) {
+ DRM_ERROR("could not find dma buffer region!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+
+ if (!dev_priv->is_pci) {
+ dev_priv->agp_textures =
+ drm_core_findmap(dev, init->agp_textures_offset);
+ if (!dev_priv->agp_textures) {
+ DRM_ERROR("could not find agp texture region!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -EINVAL;
+ }
+ }
+
+ dev_priv->sarea_priv =
+ (drm_r128_sarea_t *) ((u8 *) dev_priv->sarea->handle +
+ init->sarea_priv_offset);
+
+#if __OS_HAS_AGP
+ if (!dev_priv->is_pci) {
+ drm_core_ioremap(dev_priv->cce_ring, dev);
+ drm_core_ioremap(dev_priv->ring_rptr, dev);
+ drm_core_ioremap(dev->agp_buffer_map, dev);
+ if (!dev_priv->cce_ring->handle ||
+ !dev_priv->ring_rptr->handle ||
+ !dev->agp_buffer_map->handle) {
+ DRM_ERROR("Could not ioremap agp regions!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -ENOMEM;
+ }
+ } else
+#endif
+ {
+ dev_priv->cce_ring->handle = (void *)dev_priv->cce_ring->offset;
+ dev_priv->ring_rptr->handle =
+ (void *)dev_priv->ring_rptr->offset;
+ dev->agp_buffer_map->handle =
+ (void *)dev->agp_buffer_map->offset;
+ }
+
+#if __OS_HAS_AGP
+ if (!dev_priv->is_pci)
+ dev_priv->cce_buffers_offset = dev->agp->base;
+ else
+#endif
+ dev_priv->cce_buffers_offset = (unsigned long)dev->sg->virtual;
+
+ dev_priv->ring.start = (u32 *) dev_priv->cce_ring->handle;
+ dev_priv->ring.end = ((u32 *) dev_priv->cce_ring->handle
+ + init->ring_size / sizeof(u32));
+ dev_priv->ring.size = init->ring_size;
+ dev_priv->ring.size_l2qw = drm_order(init->ring_size / 8);
+
+ dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;
+
+ dev_priv->ring.high_mark = 128;
+
+ dev_priv->sarea_priv->last_frame = 0;
+ R128_WRITE(R128_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);
+
+ dev_priv->sarea_priv->last_dispatch = 0;
+ R128_WRITE(R128_LAST_DISPATCH_REG, dev_priv->sarea_priv->last_dispatch);
+
+#if __OS_HAS_AGP
+ if (dev_priv->is_pci) {
+#endif
+ dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
+ dev_priv->gart_info.gart_table_location = DRM_ATI_GART_MAIN;
+ dev_priv->gart_info.table_size = R128_PCIGART_TABLE_SIZE;
+ dev_priv->gart_info.addr = NULL;
+ dev_priv->gart_info.bus_addr = 0;
+ dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
+ if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {
+ DRM_ERROR("failed to init PCI GART!\n");
+ dev->dev_private = (void *)dev_priv;
+ r128_do_cleanup_cce(dev);
+ return -ENOMEM;
+ }
+ R128_WRITE(R128_PCI_GART_PAGE, dev_priv->gart_info.bus_addr);
+#if __OS_HAS_AGP
+ }
+#endif
+
+ r128_cce_init_ring_buffer(dev, dev_priv);
+ r128_cce_load_microcode(dev_priv);
+
+ dev->dev_private = (void *)dev_priv;
+
+ r128_do_engine_reset(dev);
+
+ return 0;
+}
+
+int r128_do_cleanup_cce(struct drm_device * dev)
+{
+
+ /* Make sure interrupts are disabled here because the uninstall ioctl
+ * may not have been called from userspace and after dev_private
+ * is freed, it's too late.
+ */
+ if (dev->irq_enabled)
+ drm_irq_uninstall(dev);
+
+ if (dev->dev_private) {
+ drm_r128_private_t *dev_priv = dev->dev_private;
+
+#if __OS_HAS_AGP
+ if (!dev_priv->is_pci) {
+ if (dev_priv->cce_ring != NULL)
+ drm_core_ioremapfree(dev_priv->cce_ring, dev);
+ if (dev_priv->ring_rptr != NULL)
+ drm_core_ioremapfree(dev_priv->ring_rptr, dev);
+ if (dev->agp_buffer_map != NULL) {
+ drm_core_ioremapfree(dev->agp_buffer_map, dev);
+ dev->agp_buffer_map = NULL;
+ }
+ } else
+#endif
+ {
+ if (dev_priv->gart_info.bus_addr)
+ if (!drm_ati_pcigart_cleanup(dev,
+ &dev_priv->gart_info))
+ DRM_ERROR
+ ("failed to cleanup PCI GART!\n");
+ }
+
+ drm_free(dev->dev_private, sizeof(drm_r128_private_t),
+ DRM_MEM_DRIVER);
+ dev->dev_private = NULL;
+ }
+
+ return 0;
+}
+
+int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_r128_init_t *init = data;
+
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ switch (init->func) {
+ case R128_INIT_CCE:
+ return r128_do_init_cce(dev, init);
+ case R128_CLEANUP_CCE:
+ return r128_do_cleanup_cce(dev);
+ }
+
+ return -EINVAL;
+}
+
+int r128_cce_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (dev_priv->cce_running || dev_priv->cce_mode == R128_PM4_NONPM4) {
+ DRM_DEBUG("while CCE running\n");
+ return 0;
+ }
+
+ r128_do_cce_start(dev_priv);
+
+ return 0;
+}
+
+/* Stop the CCE. The engine must have been idled before calling this
+ * routine.
+ */
+int r128_cce_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ drm_r128_cce_stop_t *stop = data;
+ int ret;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ /* Flush any pending CCE commands. This ensures any outstanding
+ * commands are exectuted by the engine before we turn it off.
+ */
+ if (stop->flush) {
+ r128_do_cce_flush(dev_priv);
+ }
+
+ /* If we fail to make the engine go idle, we return an error
+ * code so that the DRM ioctl wrapper can try again.
+ */
+ if (stop->idle) {
+ ret = r128_do_cce_idle(dev_priv);
+ if (ret)
+ return ret;
+ }
+
+ /* Finally, we can turn off the CCE. If the engine isn't idle,
+ * we will get some dropped triangles as they won't be fully
+ * rendered before the CCE is shut down.
+ */
+ r128_do_cce_stop(dev_priv);
+
+ /* Reset the engine */
+ r128_do_engine_reset(dev);
+
+ return 0;
+}
+
+/* Just reset the CCE ring. Called as part of an X Server engine reset.
+ */
+int r128_cce_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (!dev_priv) {
+ DRM_DEBUG("called before init done\n");
+ return -EINVAL;
+ }
+
+ r128_do_cce_reset(dev_priv);
+
+ /* The CCE is no longer running after an engine reset */
+ dev_priv->cce_running = 0;
+
+ return 0;
+}
+
+int r128_cce_idle(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (dev_priv->cce_running) {
+ r128_do_cce_flush(dev_priv);
+ }
+
+ return r128_do_cce_idle(dev_priv);
+}
+
+int r128_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ return r128_do_engine_reset(dev);
+}
+
+int r128_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ return -EINVAL;
+}
+
+/* ================================================================
+ * Freelist management
+ */
+#define R128_BUFFER_USED 0xffffffff
+#define R128_BUFFER_FREE 0
+
+#if 0
+static int r128_freelist_init(struct drm_device * dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ struct drm_buf *buf;
+ drm_r128_buf_priv_t *buf_priv;
+ drm_r128_freelist_t *entry;
+ int i;
+
+ dev_priv->head = drm_alloc(sizeof(drm_r128_freelist_t), DRM_MEM_DRIVER);
+ if (dev_priv->head == NULL)
+ return -ENOMEM;
+
+ memset(dev_priv->head, 0, sizeof(drm_r128_freelist_t));
+ dev_priv->head->age = R128_BUFFER_USED;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ buf = dma->buflist[i];
+ buf_priv = buf->dev_private;
+
+ entry = drm_alloc(sizeof(drm_r128_freelist_t), DRM_MEM_DRIVER);
+ if (!entry)
+ return -ENOMEM;
+
+ entry->age = R128_BUFFER_FREE;
+ entry->buf = buf;
+ entry->prev = dev_priv->head;
+ entry->next = dev_priv->head->next;
+ if (!entry->next)
+ dev_priv->tail = entry;
+
+ buf_priv->discard = 0;
+ buf_priv->dispatched = 0;
+ buf_priv->list_entry = entry;
+
+ dev_priv->head->next = entry;
+
+ if (dev_priv->head->next)
+ dev_priv->head->next->prev = entry;
+ }
+
+ return 0;
+
+}
+#endif
+
+static struct drm_buf *r128_freelist_get(struct drm_device * dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ drm_r128_buf_priv_t *buf_priv;
+ struct drm_buf *buf;
+ int i, t;
+
+ /* FIXME: Optimize -- use freelist code */
+
+ for (i = 0; i < dma->buf_count; i++) {
+ buf = dma->buflist[i];
+ buf_priv = buf->dev_private;
+ if (!buf->file_priv)
+ return buf;
+ }
+
+ for (t = 0; t < dev_priv->usec_timeout; t++) {
+ u32 done_age = R128_READ(R128_LAST_DISPATCH_REG);
+
+ for (i = 0; i < dma->buf_count; i++) {
+ buf = dma->buflist[i];
+ buf_priv = buf->dev_private;
+ if (buf->pending && buf_priv->age <= done_age) {
+ /* The buffer has been processed, so it
+ * can now be used.
+ */
+ buf->pending = 0;
+ return buf;
+ }
+ }
+ DRM_UDELAY(1);
+ }
+
+ DRM_DEBUG("returning NULL!\n");
+ return NULL;
+}
+
+void r128_freelist_reset(struct drm_device * dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ struct drm_buf *buf = dma->buflist[i];
+ drm_r128_buf_priv_t *buf_priv = buf->dev_private;
+ buf_priv->age = 0;
+ }
+}
+
+/* ================================================================
+ * CCE command submission
+ */
+
+int r128_wait_ring(drm_r128_private_t * dev_priv, int n)
+{
+ drm_r128_ring_buffer_t *ring = &dev_priv->ring;
+ int i;
+
+ for (i = 0; i < dev_priv->usec_timeout; i++) {
+ r128_update_ring_snapshot(dev_priv);
+ if (ring->space >= n)
+ return 0;
+ DRM_UDELAY(1);
+ }
+
+ /* FIXME: This is being ignored... */
+ DRM_ERROR("failed!\n");
+ return -EBUSY;
+}
+
+static int r128_cce_get_buffers(struct drm_device * dev,
+ struct drm_file *file_priv,
+ struct drm_dma * d)
+{
+ int i;
+ struct drm_buf *buf;
+
+ for (i = d->granted_count; i < d->request_count; i++) {
+ buf = r128_freelist_get(dev);
+ if (!buf)
+ return -EAGAIN;
+
+ buf->file_priv = file_priv;
+
+ if (DRM_COPY_TO_USER(&d->request_indices[i], &buf->idx,
+ sizeof(buf->idx)))
+ return -EFAULT;
+ if (DRM_COPY_TO_USER(&d->request_sizes[i], &buf->total,
+ sizeof(buf->total)))
+ return -EFAULT;
+
+ d->granted_count++;
+ }
+ return 0;
+}
+
+int r128_cce_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int ret = 0;
+ struct drm_dma *d = data;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ /* Please don't send us buffers.
+ */
+ if (d->send_count != 0) {
+ DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
+ DRM_CURRENTPID, d->send_count);
+ return -EINVAL;
+ }
+
+ /* We'll send you buffers.
+ */
+ if (d->request_count < 0 || d->request_count > dma->buf_count) {
+ DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
+ DRM_CURRENTPID, d->request_count, dma->buf_count);
+ return -EINVAL;
+ }
+
+ d->granted_count = 0;
+
+ if (d->request_count) {
+ ret = r128_cce_get_buffers(dev, file_priv, d);
+ }
+
+ return ret;
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-01 15:40:28 +0000