As now gvt init is late after MMIO initialization, use normal MMIO
read function for initial firmware exposure if no available firmware
loaded.
Signed-off-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gvt/firmware.c | 47 ++++---------------------------------
1 file changed, 4 insertions(+), 43 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c
index 2fae2a2ca96f..1cb29b2d7dc6 100644
--- a/drivers/gpu/drm/i915/gvt/firmware.c
+++ b/drivers/gpu/drm/i915/gvt/firmware.c
@@ -48,31 +48,6 @@ struct gvt_firmware_header {
unsigned char data[1];
};
-#define RD(offset) (readl(mmio + offset.reg))
-#define WR(v, offset) (writel(v, mmio + offset.reg))
-
-static void bdw_forcewake_get(void __iomem *mmio)
-{
- WR(_MASKED_BIT_DISABLE(0xffff), FORCEWAKE_MT);
-
- RD(ECOBUS);
-
- if (wait_for((RD(FORCEWAKE_ACK_HSW) & FORCEWAKE_KERNEL) == 0, 50))
- gvt_err("fail to wait forcewake idle\n");
-
- WR(_MASKED_BIT_ENABLE(FORCEWAKE_KERNEL), FORCEWAKE_MT);
-
- if (wait_for((RD(FORCEWAKE_ACK_HSW) & FORCEWAKE_KERNEL), 50))
- gvt_err("fail to wait forcewake ack\n");
-
- if (wait_for((RD(GEN6_GT_THREAD_STATUS_REG) &
- GEN6_GT_THREAD_STATUS_CORE_MASK) == 0, 50))
- gvt_err("fail to wait c0 wake up\n");
-}
-
-#undef RD
-#undef WR
-
#define dev_to_drm_minor(d) dev_get_drvdata((d))
static ssize_t
@@ -91,9 +66,9 @@ static struct bin_attribute firmware_attr = {
.mmap = NULL,
};
-static int expose_firmware_sysfs(struct intel_gvt *gvt,
- void __iomem *mmio)
+static int expose_firmware_sysfs(struct intel_gvt *gvt)
{
+ struct drm_i915_private *dev_priv = gvt->dev_priv;
struct intel_gvt_device_info *info = &gvt->device_info;
struct pci_dev *pdev = gvt->dev_priv->drm.pdev;
struct intel_gvt_mmio_info *e;
@@ -132,7 +107,7 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt,
for (j = 0; j < e->length; j += 4)
*(u32 *)(p + e->offset + j) =
- readl(mmio + e->offset + j);
+ I915_READ_NOTRACE(_MMIO(e->offset + j));
}
memcpy(gvt->firmware.mmio, p, info->mmio_size);
@@ -235,7 +210,6 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt)
struct gvt_firmware_header *h;
const struct firmware *fw;
char *path;
- void __iomem *mmio;
void *mem;
int ret;
@@ -260,17 +234,6 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt)
firmware->mmio = mem;
- mmio = pci_iomap(pdev, info->mmio_bar, info->mmio_size);
- if (!mmio) {
- kfree(path);
- kfree(firmware->cfg_space);
- kfree(firmware->mmio);
- return -EINVAL;
- }
-
- if (IS_BROADWELL(gvt->dev_priv) || IS_SKYLAKE(gvt->dev_priv))
- bdw_forcewake_get(mmio);
-
sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%04x.golden_hw_state",
GVT_FIRMWARE_PATH, pdev->vendor, pdev->device,
pdev->revision);
@@ -300,13 +263,11 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt)
release_firmware(fw);
firmware->firmware_loaded = true;
- pci_iounmap(pdev, mmio);
return 0;
out_free_fw:
release_firmware(fw);
expose_firmware:
- expose_firmware_sysfs(gvt, mmio);
- pci_iounmap(pdev, mmio);
+ expose_firmware_sysfs(gvt);
return 0;
}
--
2.11.0
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