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From: Jonathan Marek <jonathan@marek.ca>
To: freedreno@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>,
	"open list:DRM DRIVER FOR MSM ADRENO GPU"
	<linux-arm-msm@vger.kernel.org>,
	Sharat Masetty <smasetty@codeaurora.org>,
	"open list:DRM DRIVER FOR MSM ADRENO GPU"
	<dri-devel@lists.freedesktop.org>,
	open list <linux-kernel@vger.kernel.org>,
	"Michael J. Ruhl" <michael.j.ruhl@intel.com>,
	Sean Paul <sean@poorly.run>
Subject: [PATCH 3/9] drm/msm/a6xx: allow allocating GMU memory with a fixed address
Date: Mon, 20 Apr 2020 10:03:07 -0400
Message-ID: <20200420140313.7263-4-jonathan@marek.ca> (raw)
In-Reply-To: <20200420140313.7263-1-jonathan@marek.ca>

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 748cd379065f..c6ecb3189ec5 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -938,8 +938,8 @@ static void a6xx_gmu_memory_free(struct a6xx_gmu *gmu, struct a6xx_gmu_bo *bo)
 	kfree(bo);
 }
 
-static struct a6xx_gmu_bo *a6xx_gmu_memory_alloc(struct a6xx_gmu *gmu,
-		size_t size)
+static struct a6xx_gmu_bo *
+a6xx_gmu_memory_alloc(struct a6xx_gmu *gmu, size_t size, uint64_t iova)
 {
 	struct a6xx_gmu_bo *bo;
 	int ret, count, i;
@@ -964,13 +964,13 @@ static struct a6xx_gmu_bo *a6xx_gmu_memory_alloc(struct a6xx_gmu *gmu,
 			goto err;
 	}
 
-	bo->iova = gmu->uncached_iova_base;
+	bo->iova = iova ?: gmu->uncached_iova_base;
 
 	for (i = 0; i < count; i++) {
 		ret = iommu_map(gmu->domain,
 			bo->iova + (PAGE_SIZE * i),
 			page_to_phys(bo->pages[i]), PAGE_SIZE,
-			IOMMU_READ | IOMMU_WRITE);
+			IOMMU_READ | IOMMU_WRITE | IOMMU_PRIV);
 
 		if (ret) {
 			DRM_DEV_ERROR(gmu->dev, "Unable to map GMU buffer object\n");
@@ -990,7 +990,8 @@ static struct a6xx_gmu_bo *a6xx_gmu_memory_alloc(struct a6xx_gmu *gmu,
 		goto err;
 
 	/* Align future IOVA addresses on 1MB boundaries */
-	gmu->uncached_iova_base += ALIGN(size, SZ_1M);
+	if (!iova)
+		gmu->uncached_iova_base += ALIGN(size, SZ_1M);
 
 	return bo;
 
@@ -1331,12 +1332,12 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
 		goto err_put_device;
 
 	/* Allocate memory for for the HFI queues */
-	gmu->hfi = a6xx_gmu_memory_alloc(gmu, SZ_16K);
+	gmu->hfi = a6xx_gmu_memory_alloc(gmu, SZ_16K, 0);
 	if (IS_ERR(gmu->hfi))
 		goto err_memory;
 
 	/* Allocate memory for the GMU debug region */
-	gmu->debug = a6xx_gmu_memory_alloc(gmu, SZ_16K);
+	gmu->debug = a6xx_gmu_memory_alloc(gmu, SZ_16K, 0);
 	if (IS_ERR(gmu->debug))
 		goto err_memory;
 
-- 
2.26.1

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Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200420140313.7263-1-jonathan@marek.ca>
2020-04-20 14:03 ` [PATCH 1/9] drm/msm/adreno: add A640/A650 to gpulist Jonathan Marek
2020-04-20 14:30   ` Greg Kroah-Hartman
2020-04-20 14:03 ` [PATCH 2/9] Revert "drm/msm/a6xx: Use the DMA API for GMU memory objects" Jonathan Marek
2020-04-20 19:51   ` Bjorn Andersson
2020-04-20 19:59     ` Jonathan Marek
2020-04-20 21:16       ` Rob Clark
2020-04-20 14:03 ` Jonathan Marek [this message]
2020-04-20 14:03 ` [PATCH 4/9] drm/msm/a6xx: HFI v2 for A640 and A650 Jonathan Marek
2020-04-21 16:30   ` Jordan Crouse
2020-04-21 16:52     ` Jonathan Marek
2020-04-20 14:03 ` [PATCH 5/9] drm/msm/a6xx: A640/A650 GMU firmware path Jonathan Marek
2020-04-20 14:03 ` [PATCH 6/9] drm/msm/a6xx: add support for A650 gmu rscc registers Jonathan Marek
2020-04-20 14:03 ` [PATCH 7/9] drm/msm/a6xx: gmu_pdc register values for A640 and A650 Jonathan Marek
2020-04-21 16:34   ` Jordan Crouse
2020-04-20 14:03 ` [PATCH 8/9] drm/msm/a6xx: enable GMU log Jonathan Marek
2020-04-21 16:38   ` [Freedreno] " Jordan Crouse
2020-04-20 14:03 ` [PATCH 9/9] drm/msm/a6xx: update a6xx_hw_init for A640 and A650 Jonathan Marek
2020-04-21 16:48   ` Jordan Crouse

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