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authorDave Airlie <airlied@linux.ie>2008-09-18 10:17:27 +1000
committerDave Airlie <airlied@linux.ie>2008-09-18 10:17:27 +1000
commit515aa0800cf2d91bdf4706463e0531c5081a2679 (patch)
tree31b6b29d58b0e782305025781b13db4625f8da13
parentb6c1a2f7eea256dad7d38020f784ed6a94accd9d (diff)
radeon: do proper memory controller init and setup
-rw-r--r--linux-core/radeon_gem.c180
-rw-r--r--shared-core/radeon_cp.c2
-rw-r--r--shared-core/radeon_drv.h1
3 files changed, 180 insertions, 3 deletions
diff --git a/linux-core/radeon_gem.c b/linux-core/radeon_gem.c
index c0218a3f..58162e52 100644
--- a/linux-core/radeon_gem.c
+++ b/linux-core/radeon_gem.c
@@ -707,6 +707,176 @@ int radeon_alloc_gart_objects(struct drm_device *dev)
}
+static bool avivo_get_mc_idle(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ if (dev_priv->chip_family >= CHIP_R600) {
+ /* no idea where this is on r600 yet */
+ return true;
+ } else if (dev_priv->chip_family == CHIP_RV515) {
+ if (radeon_read_mc_reg(dev_priv, RV515_MC_STATUS) & RV515_MC_STATUS_IDLE)
+ return true;
+ else
+ return false;
+ } else if (dev_priv->chip_family == CHIP_RS600) {
+ if (radeon_read_mc_reg(dev_priv, RS600_MC_STATUS) & RS600_MC_STATUS_IDLE)
+ return true;
+ else
+ return false;
+ } else if ((dev_priv->chip_family == CHIP_RS690) ||
+ (dev_priv->chip_family == CHIP_RS740)) {
+ if (radeon_read_mc_reg(dev_priv, RS690_MC_STATUS) & RS690_MC_STATUS_IDLE)
+ return true;
+ else
+ return false;
+ } else {
+ if (radeon_read_mc_reg(dev_priv, R520_MC_STATUS) & R520_MC_STATUS_IDLE)
+ return true;
+ else
+ return false;
+ }
+}
+
+
+static void avivo_disable_mc_clients(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ uint32_t tmp;
+ int timeout;
+
+ radeon_do_wait_for_idle(dev_priv);
+
+ RADEON_WRITE(AVIVO_D1VGA_CONTROL, RADEON_READ(AVIVO_D1VGA_CONTROL) & ~AVIVO_DVGA_CONTROL_MODE_ENABLE);
+ RADEON_WRITE(AVIVO_D2VGA_CONTROL, RADEON_READ(AVIVO_D2VGA_CONTROL) & ~AVIVO_DVGA_CONTROL_MODE_ENABLE);
+
+ tmp = RADEON_READ(AVIVO_D1CRTC_CONTROL);
+ RADEON_WRITE(AVIVO_D1CRTC_CONTROL, tmp & ~AVIVO_CRTC_EN);
+
+ tmp = RADEON_READ(AVIVO_D2CRTC_CONTROL);
+ RADEON_WRITE(AVIVO_D2CRTC_CONTROL, tmp & ~AVIVO_CRTC_EN);
+
+ tmp = RADEON_READ(AVIVO_D2CRTC_CONTROL);
+
+ udelay(1000);
+
+ timeout = 0;
+ while (!(avivo_get_mc_idle(dev))) {
+ if (++timeout > 100000) {
+ DRM_ERROR("Timeout waiting for memory controller to update settings\n");
+ DRM_ERROR("Bad things may or may not happen\n");
+ }
+ udelay(10);
+ }
+}
+
+static inline u32 radeon_busy_wait(struct drm_device *dev, uint32_t reg, uint32_t bits,
+ unsigned int timeout)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ u32 status;
+
+ do {
+ udelay(10);
+ status = RADEON_READ(reg);
+ timeout--;
+ } while(status != 0xffffffff && (status & bits) && (timeout > 0));
+
+ if (timeout == 0)
+ status = 0xffffffff;
+
+ return status;
+}
+
+/* Wait for vertical sync on primary CRTC */
+static void radeon_wait_for_vsync(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ uint32_t crtc_gen_cntl;
+ int ret;
+
+ crtc_gen_cntl = RADEON_READ(RADEON_CRTC_GEN_CNTL);
+ if ((crtc_gen_cntl & RADEON_CRTC_DISP_REQ_EN_B) ||
+ !(crtc_gen_cntl & RADEON_CRTC_EN))
+ return;
+
+ /* Clear the CRTC_VBLANK_SAVE bit */
+ RADEON_WRITE(RADEON_CRTC_STATUS, RADEON_CRTC_VBLANK_SAVE_CLEAR);
+
+ radeon_busy_wait(dev, RADEON_CRTC_STATUS, RADEON_CRTC_VBLANK_SAVE, 2000);
+
+}
+
+/* Wait for vertical sync on primary CRTC */
+static void radeon_wait_for_vsync2(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ uint32_t crtc2_gen_cntl;
+ struct timeval timeout;
+
+ crtc2_gen_cntl = RADEON_READ(RADEON_CRTC2_GEN_CNTL);
+ if ((crtc2_gen_cntl & RADEON_CRTC2_DISP_REQ_EN_B) ||
+ !(crtc2_gen_cntl & RADEON_CRTC2_EN))
+ return;
+
+ /* Clear the CRTC_VBLANK_SAVE bit */
+ RADEON_WRITE(RADEON_CRTC2_STATUS, RADEON_CRTC2_VBLANK_SAVE_CLEAR);
+
+ radeon_busy_wait(dev, RADEON_CRTC2_STATUS, RADEON_CRTC2_VBLANK_SAVE, 2000);
+}
+
+static void legacy_disable_mc_clients(struct drm_device *dev)
+{
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ uint32_t old_mc_status, status_idle;
+ uint32_t ov0_scale_cntl, crtc_ext_cntl, crtc_gen_cntl, crtc2_gen_cntl;
+ uint32_t status;
+
+ radeon_do_wait_for_idle(dev_priv);
+
+ if (dev_priv->flags & RADEON_IS_IGP)
+ return;
+
+ old_mc_status = RADEON_READ(RADEON_MC_STATUS);
+
+ /* stop display and memory access */
+ ov0_scale_cntl = RADEON_READ(RADEON_OV0_SCALE_CNTL);
+ RADEON_WRITE(RADEON_OV0_SCALE_CNTL, ov0_scale_cntl & ~RADEON_SCALER_ENABLE);
+ crtc_ext_cntl = RADEON_READ(RADEON_CRTC_EXT_CNTL);
+ RADEON_WRITE(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl | RADEON_CRTC_DISPLAY_DIS);
+ crtc_gen_cntl = RADEON_READ(RADEON_CRTC_GEN_CNTL);
+
+ radeon_wait_for_vsync(dev);
+
+ RADEON_WRITE(RADEON_CRTC_GEN_CNTL,
+ (crtc_gen_cntl & ~(RADEON_CRTC_CUR_EN | RADEON_CRTC_ICON_EN)) |
+ RADEON_CRTC_DISP_REQ_EN_B | RADEON_CRTC_EXT_DISP_EN);
+
+ if (!(dev_priv->flags & RADEON_SINGLE_CRTC)) {
+ crtc2_gen_cntl = RADEON_READ(RADEON_CRTC2_GEN_CNTL);
+
+ radeon_wait_for_vsync2(dev);
+ RADEON_WRITE(RADEON_CRTC2_GEN_CNTL,
+ (crtc2_gen_cntl &
+ ~(RADEON_CRTC2_CUR_EN | RADEON_CRTC2_ICON_EN)) |
+ RADEON_CRTC2_DISP_REQ_EN_B);
+ }
+
+ udelay(500);
+
+ if (radeon_is_r300(dev_priv))
+ status_idle = R300_MC_IDLE;
+ else
+ status_idle = RADEON_MC_IDLE;
+
+ status = radeon_busy_wait(dev, RADEON_MC_STATUS, status_idle, 200000);
+ if (status == 0xffffffff) {
+ DRM_ERROR("Timeout waiting for memory controller to update settings\n");
+ DRM_ERROR("Bad things may or may not happen\n");
+ }
+}
+
+
void radeon_init_memory_map(struct drm_device *dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
@@ -776,6 +946,14 @@ void radeon_init_memory_map(struct drm_device *dev)
else
dev_priv->fb_location = (dev_priv->mc_fb_location & 0xffff) << 16;
+ /* updating mc regs here */
+ if (radeon_is_avivo(dev_priv))
+ avivo_disable_mc_clients(dev);
+ else
+ legacy_disable_mc_clients(dev);
+
+ radeon_write_fb_location(dev_priv, dev_priv->mc_fb_location);
+
if (radeon_is_avivo(dev_priv)) {
if (dev_priv->chip_family >= CHIP_R600)
RADEON_WRITE(R600_HDP_NONSURFACE_BASE, (dev_priv->mc_fb_location << 16) & 0xff0000);
@@ -783,8 +961,6 @@ void radeon_init_memory_map(struct drm_device *dev)
RADEON_WRITE(AVIVO_HDP_FB_LOCATION, dev_priv->mc_fb_location);
}
- radeon_write_fb_location(dev_priv, dev_priv->mc_fb_location);
-
dev_priv->fb_location = (radeon_read_fb_location(dev_priv) & 0xffff) << 16;
dev_priv->fb_size =
((radeon_read_fb_location(dev_priv) & 0xffff0000u) + 0x10000)
diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index 8fc43756..63957cd7 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -356,7 +356,7 @@ static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries)
return -EBUSY;
}
-static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
+int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
{
int i, ret;
diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index 96f9a98c..82d9d001 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -491,6 +491,7 @@ extern struct drm_buf *radeon_freelist_get(struct drm_device * dev);
extern int radeon_wait_ring(drm_radeon_private_t * dev_priv, int n);
+extern int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv);
extern int radeon_do_cp_idle(drm_radeon_private_t * dev_priv);
extern int radeon_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);