[PATCH 1/5] drm/msm/adreno: Make microcode loading target specific

Jordan Crouse jcrouse at codeaurora.org
Mon Jan 22 18:04:09 UTC 2018


Move microcode loading to be target specific. While this results in
a bit more code duplication (especially between A3XX/A4XX) this
gives us more flexibility for newer targets that don't need to keep
an extra copy of the firmware data around in memory.

Signed-off-by: Jordan Crouse <jcrouse at codeauorora.org>
---
 drivers/gpu/drm/msm/adreno/a3xx_gpu.c   | 83 ++++++++++++++++++++++-----------
 drivers/gpu/drm/msm/adreno/a3xx_gpu.h   |  2 +
 drivers/gpu/drm/msm/adreno/a4xx_gpu.c   | 69 ++++++++++++++++++++-------
 drivers/gpu/drm/msm/adreno/a4xx_gpu.h   |  2 +
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c   | 24 +++++++---
 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 30 ------------
 drivers/gpu/drm/msm/adreno/adreno_gpu.h |  3 --
 7 files changed, 127 insertions(+), 86 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
index 4baef27..fbc2d11 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
@@ -69,11 +69,58 @@ static bool a3xx_me_init(struct msm_gpu *gpu)
 	return a3xx_idle(gpu);
 }
 
-static int a3xx_hw_init(struct msm_gpu *gpu)
+static int a3xx_ucode_init(struct msm_gpu *gpu)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
 	struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu);
+	const struct firmware *fw;
 	uint32_t *ptr, len;
+	int i;
+
+	if (!a3xx_gpu->pm4) {
+		fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->pm4fw);
+		if (IS_ERR(fw))
+			return PTR_ERR(fw);
+
+		a3xx_gpu->pm4 = fw;
+	}
+
+	if (!a3xx_gpu->pfp) {
+		fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->pfpfw);
+		if (IS_ERR(fw))
+			return PTR_ERR(fw);
+
+		a3xx_gpu->pfp = fw;
+	}
+
+	/* Load PM4: */
+	ptr = (uint32_t *)(a3xx_gpu->pm4->data);
+	len = a3xx_gpu->pm4->size / 4;
+	DBG("loading PM4 ucode version: %x", ptr[1]);
+
+	gpu_write(gpu, REG_AXXX_CP_DEBUG,
+			AXXX_CP_DEBUG_DYNAMIC_CLK_DISABLE |
+			AXXX_CP_DEBUG_MIU_128BIT_WRITE_ENABLE);
+	gpu_write(gpu, REG_AXXX_CP_ME_RAM_WADDR, 0);
+	for (i = 1; i < len; i++)
+		gpu_write(gpu, REG_AXXX_CP_ME_RAM_DATA, ptr[i]);
+
+	/* Load PFP: */
+	ptr = (uint32_t *)(a3xx_gpu->pfp->data);
+	len = a3xx_gpu->pfp->size / 4;
+	DBG("loading PFP ucode version: %x", ptr[5]);
+
+	gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_ADDR, 0);
+	for (i = 1; i < len; i++)
+		gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_DATA, ptr[i]);
+
+	return 0;
+}
+
+static int a3xx_hw_init(struct msm_gpu *gpu)
+{
+	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+	struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu);
 	int i, ret;
 
 	DBG("%s", gpu->name);
@@ -225,6 +272,10 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
 	if (ret)
 		return ret;
 
+	ret = a3xx_ucode_init(gpu);
+	if (ret)
+		return ret;
+
 	/* setup access protection: */
 	gpu_write(gpu, REG_A3XX_CP_PROTECT_CTRL, 0x00000007);
 
@@ -249,33 +300,6 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
 	/* VBIF registers */
 	gpu_write(gpu, REG_A3XX_CP_PROTECT(12), 0x6b00c000);
 
-	/* NOTE: PM4/micro-engine firmware registers look to be the same
-	 * for a2xx and a3xx.. we could possibly push that part down to
-	 * adreno_gpu base class.  Or push both PM4 and PFP but
-	 * parameterize the pfp ucode addr/data registers..
-	 */
-
-	/* Load PM4: */
-	ptr = (uint32_t *)(adreno_gpu->pm4->data);
-	len = adreno_gpu->pm4->size / 4;
-	DBG("loading PM4 ucode version: %x", ptr[1]);
-
-	gpu_write(gpu, REG_AXXX_CP_DEBUG,
-			AXXX_CP_DEBUG_DYNAMIC_CLK_DISABLE |
-			AXXX_CP_DEBUG_MIU_128BIT_WRITE_ENABLE);
-	gpu_write(gpu, REG_AXXX_CP_ME_RAM_WADDR, 0);
-	for (i = 1; i < len; i++)
-		gpu_write(gpu, REG_AXXX_CP_ME_RAM_DATA, ptr[i]);
-
-	/* Load PFP: */
-	ptr = (uint32_t *)(adreno_gpu->pfp->data);
-	len = adreno_gpu->pfp->size / 4;
-	DBG("loading PFP ucode version: %x", ptr[5]);
-
-	gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_ADDR, 0);
-	for (i = 1; i < len; i++)
-		gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_DATA, ptr[i]);
-
 	/* CP ROQ queue sizes (bytes) - RB:16, ST:16, IB1:32, IB2:64 */
 	if (adreno_is_a305(adreno_gpu) || adreno_is_a306(adreno_gpu) ||
 			adreno_is_a320(adreno_gpu)) {
@@ -326,6 +350,9 @@ static void a3xx_destroy(struct msm_gpu *gpu)
 
 	DBG("%s", gpu->name);
 
+	release_firmware(a3xx_gpu->pm4);
+	release_firmware(a3xx_gpu->pfp);
+
 	adreno_gpu_cleanup(adreno_gpu);
 
 #ifdef CONFIG_MSM_OCMEM
diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.h b/drivers/gpu/drm/msm/adreno/a3xx_gpu.h
index ab60dc9..e4fcc0d 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.h
@@ -32,6 +32,8 @@ struct a3xx_gpu {
 	/* if OCMEM is used for GMEM: */
 	uint32_t ocmem_base;
 	void *ocmem_hdl;
+
+	const struct firmware *pm4, *pfp;
 };
 #define to_a3xx_gpu(x) container_of(x, struct a3xx_gpu, base)
 
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
index 8199a4b..7d0a858 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
@@ -141,12 +141,55 @@ static bool a4xx_me_init(struct msm_gpu *gpu)
 	return a4xx_idle(gpu);
 }
 
-static int a4xx_hw_init(struct msm_gpu *gpu)
+static int a4xx_ucode_init(struct msm_gpu *gpu)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
 	struct a4xx_gpu *a4xx_gpu = to_a4xx_gpu(adreno_gpu);
+	const struct firmware *fw;
 	uint32_t *ptr, len;
-	int i, ret;
+	int i;
+
+	if (!a4xx_gpu->pm4) {
+		fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->pm4fw);
+		if (IS_ERR(fw))
+			return PTR_ERR(fw);
+
+		a4xx_gpu->pm4 = fw;
+	}
+
+	if (!a4xx_gpu->pfp) {
+		fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->pfpfw);
+		if (IS_ERR(fw))
+			return PTR_ERR(fw);
+
+		a4xx_gpu->pfp = fw;
+	}
+
+	/* Load PM4: */
+	ptr = (uint32_t *)(a4xx_gpu->pm4->data);
+	len = a4xx_gpu->pm4->size / 4;
+	DBG("loading PM4 ucode version: %u", ptr[0]);
+	gpu_write(gpu, REG_A4XX_CP_ME_RAM_WADDR, 0);
+	for (i = 1; i < len; i++)
+		gpu_write(gpu, REG_A4XX_CP_ME_RAM_DATA, ptr[i]);
+
+	/* Load PFP: */
+	ptr = (uint32_t *)(a4xx_gpu->pfp->data);
+	len = a4xx_gpu->pfp->size / 4;
+	DBG("loading PFP ucode version: %u", ptr[0]);
+
+	gpu_write(gpu, REG_A4XX_CP_PFP_UCODE_ADDR, 0);
+	for (i = 1; i < len; i++)
+		gpu_write(gpu, REG_A4XX_CP_PFP_UCODE_DATA, ptr[i]);
+
+	return 0;
+}
+
+static int a4xx_hw_init(struct msm_gpu *gpu)
+{
+	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+	struct a4xx_gpu *a4xx_gpu = to_a4xx_gpu(adreno_gpu);
+	int ret;
 
 	if (adreno_is_a420(adreno_gpu)) {
 		gpu_write(gpu, REG_A4XX_VBIF_ABIT_SORT, 0x0001001F);
@@ -273,22 +316,9 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 	if (ret)
 		return ret;
 
-	/* Load PM4: */
-	ptr = (uint32_t *)(adreno_gpu->pm4->data);
-	len = adreno_gpu->pm4->size / 4;
-	DBG("loading PM4 ucode version: %u", ptr[0]);
-	gpu_write(gpu, REG_A4XX_CP_ME_RAM_WADDR, 0);
-	for (i = 1; i < len; i++)
-		gpu_write(gpu, REG_A4XX_CP_ME_RAM_DATA, ptr[i]);
-
-	/* Load PFP: */
-	ptr = (uint32_t *)(adreno_gpu->pfp->data);
-	len = adreno_gpu->pfp->size / 4;
-	DBG("loading PFP ucode version: %u", ptr[0]);
-
-	gpu_write(gpu, REG_A4XX_CP_PFP_UCODE_ADDR, 0);
-	for (i = 1; i < len; i++)
-		gpu_write(gpu, REG_A4XX_CP_PFP_UCODE_DATA, ptr[i]);
+	ret = a4xx_ucode_init(gpu);
+	if (ret)
+		return ret;
 
 	/* clear ME_HALT to start micro engine */
 	gpu_write(gpu, REG_A4XX_CP_ME_CNTL, 0);
@@ -324,6 +354,9 @@ static void a4xx_destroy(struct msm_gpu *gpu)
 
 	DBG("%s", gpu->name);
 
+	release_firmware(a4xx_gpu->pm4);
+	release_firmware(a4xx_gpu->pfp);
+
 	adreno_gpu_cleanup(adreno_gpu);
 
 #ifdef CONFIG_MSM_OCMEM
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.h b/drivers/gpu/drm/msm/adreno/a4xx_gpu.h
index f757184..2c80af7 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.h
@@ -27,6 +27,8 @@ struct a4xx_gpu {
 	/* if OCMEM is used for GMEM: */
 	uint32_t ocmem_base;
 	void *ocmem_hdl;
+
+	const struct firmware *pm4, *pfp;
 };
 #define to_a4xx_gpu(x) container_of(x, struct a4xx_gpu, base)
 
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 7e09d44..e8e726e 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -434,20 +434,30 @@ static int a5xx_preempt_start(struct msm_gpu *gpu)
 
 
 static struct drm_gem_object *a5xx_ucode_load_bo(struct msm_gpu *gpu,
-		const struct firmware *fw, u64 *iova)
+		const char *fwname, u64 *iova)
 {
+	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+	const struct firmware *fw;
 	struct drm_gem_object *bo;
 	void *ptr;
 
+	fw = adreno_request_fw(adreno_gpu, fwname);
+	if (IS_ERR(fw))
+		return ERR_CAST(fw);
+
 	ptr = msm_gem_kernel_new_locked(gpu->dev, fw->size - 4,
 		MSM_BO_UNCACHED | MSM_BO_GPU_READONLY, gpu->aspace, &bo, iova);
 
-	if (IS_ERR(ptr))
-		return ERR_CAST(ptr);
+	if (IS_ERR(ptr)) {
+		bo = ERR_CAST(ptr);
+		goto out;
+	}
 
 	memcpy(ptr, &fw->data[4], fw->size - 4);
 
 	msm_gem_put_vaddr(bo);
+out:
+	release_firmware(fw);
 	return bo;
 }
 
@@ -458,8 +468,8 @@ static int a5xx_ucode_init(struct msm_gpu *gpu)
 	int ret;
 
 	if (!a5xx_gpu->pm4_bo) {
-		a5xx_gpu->pm4_bo = a5xx_ucode_load_bo(gpu, adreno_gpu->pm4,
-			&a5xx_gpu->pm4_iova);
+		a5xx_gpu->pm4_bo = a5xx_ucode_load_bo(gpu,
+			adreno_gpu->info->pm4fw, &a5xx_gpu->pm4_iova);
 
 		if (IS_ERR(a5xx_gpu->pm4_bo)) {
 			ret = PTR_ERR(a5xx_gpu->pm4_bo);
@@ -471,8 +481,8 @@ static int a5xx_ucode_init(struct msm_gpu *gpu)
 	}
 
 	if (!a5xx_gpu->pfp_bo) {
-		a5xx_gpu->pfp_bo = a5xx_ucode_load_bo(gpu, adreno_gpu->pfp,
-			&a5xx_gpu->pfp_iova);
+		a5xx_gpu->pfp_bo = a5xx_ucode_load_bo(gpu,
+			adreno_gpu->info->pfpfw, &a5xx_gpu->pfp_iova);
 
 		if (IS_ERR(a5xx_gpu->pfp_bo)) {
 			ret = PTR_ERR(a5xx_gpu->pfp_bo);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index de63ff2..9253550 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -138,29 +138,6 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value)
 	return ERR_PTR(-ENOENT);
 }
 
-static int adreno_load_fw(struct adreno_gpu *adreno_gpu)
-{
-	const struct firmware *fw;
-
-	if (adreno_gpu->pm4)
-		return 0;
-
-	fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->pm4fw);
-	if (IS_ERR(fw))
-		return PTR_ERR(fw);
-	adreno_gpu->pm4 = fw;
-
-	fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->pfpfw);
-	if (IS_ERR(fw)) {
-		release_firmware(adreno_gpu->pm4);
-		adreno_gpu->pm4 = NULL;
-		return PTR_ERR(fw);
-	}
-	adreno_gpu->pfp = fw;
-
-	return 0;
-}
-
 int adreno_hw_init(struct msm_gpu *gpu)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
@@ -168,10 +145,6 @@ int adreno_hw_init(struct msm_gpu *gpu)
 
 	DBG("%s", gpu->name);
 
-	ret = adreno_load_fw(adreno_gpu);
-	if (ret)
-		return ret;
-
 	for (i = 0; i < gpu->nr_rings; i++) {
 		struct msm_ringbuffer *ring = gpu->rb[i];
 
@@ -569,8 +542,5 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
 
 void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu)
 {
-	release_firmware(adreno_gpu->pm4);
-	release_firmware(adreno_gpu->pfp);
-
 	msm_gpu_cleanup(&adreno_gpu->base);
 }
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 8d3d0a9..bfdaaf2 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -114,9 +114,6 @@ struct adreno_gpu {
 		FW_LOCATION_HELPER,
 	} fwloc;
 
-	/* firmware: */
-	const struct firmware *pm4, *pfp;
-
 	/*
 	 * Register offsets are different between some GPUs.
 	 * GPU specific offsets will be exported by GPU specific
-- 
1.9.1



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