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* [PATCH 0/8] make stolen resource centric
@ 2017-11-24 16:42 Matthew Auld
  2017-11-24 16:42 ` [PATCH 1/8] x86/early-quirks: Extend Intel graphics stolen memory placement to 64bit Matthew Auld
                   ` (9 more replies)
  0 siblings, 10 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx

Continuation of Paulo' stolen series[1], addressing the feedback from Joonas and
Chris.

[1] https://patchwork.freedesktop.org/series/30923/

Joonas Lahtinen (1):
  x86/early-quirks: Extend Intel graphics stolen memory placement to
    64bit

Matthew Auld (7):
  x86/early-quirks: replace the magical increment start values
  drm/i915: nuke the duplicated stolen discovery
  drm/i915: s/mappable_end/mappable_size/
  drm/i915: make dsm struct resource centric
  drm/i915: make reserved struct resource centric
  drm/i915: make mappable struct resource centric
  drm/i915: prefer resource_size_t for everything stolen

 arch/x86/kernel/early-quirks.c                |  86 ++++++------
 drivers/char/agp/intel-gtt.c                  |  16 +--
 drivers/gpu/drm/i915/gvt/gvt.h                |   4 +-
 drivers/gpu/drm/i915/i915_debugfs.c           |   2 +-
 drivers/gpu/drm/i915/i915_drv.c               |   4 +-
 drivers/gpu/drm/i915/i915_drv.h               |  26 +++-
 drivers/gpu/drm/i915/i915_gem.c               |  16 +--
 drivers/gpu/drm/i915/i915_gem_execbuffer.c    |   4 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 103 +++++---------
 drivers/gpu/drm/i915/i915_gem_gtt.h           |  12 +-
 drivers/gpu/drm/i915/i915_gem_stolen.c        | 187 ++++++--------------------
 drivers/gpu/drm/i915/i915_gpu_error.c         |   2 +-
 drivers/gpu/drm/i915/i915_vgpu.c              |  12 +-
 drivers/gpu/drm/i915/i915_vma.c               |   6 +-
 drivers/gpu/drm/i915/intel_display.c          |   2 +-
 drivers/gpu/drm/i915/intel_fbc.c              |  10 +-
 drivers/gpu/drm/i915/intel_fbdev.c            |   2 +-
 drivers/gpu/drm/i915/intel_overlay.c          |   4 +-
 drivers/gpu/drm/i915/intel_pm.c               |  33 +++--
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |   6 +-
 drivers/gpu/drm/i915/selftests/i915_vma.c     |  22 +--
 drivers/gpu/drm/i915/selftests/mock_gtt.c     |   5 +-
 include/drm/i915_drm.h                        |   3 +
 include/drm/intel-gtt.h                       |   4 +-
 24 files changed, 232 insertions(+), 339 deletions(-)

-- 
2.14.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 17+ messages in thread

* [PATCH 1/8] x86/early-quirks: Extend Intel graphics stolen memory placement to 64bit
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:42 ` [PATCH 2/8] x86/early-quirks: replace the magical increment start values Matthew Auld
                   ` (8 subsequent siblings)
  9 siblings, 0 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: x86, Paulo Zanoni, H . Peter Anvin, Ingo Molnar

From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

In preparation for upcoming SKUs, allow more freedom in placement
of the Intel graphics stolen memory by BIOS to full 64bit range.

v2: export the stolen region as a resource
    fix u16 << 16 (Chris)

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #v1
---
 arch/x86/kernel/early-quirks.c | 86 +++++++++++++++++++++++-------------------
 include/drm/i915_drm.h         |  3 ++
 2 files changed, 50 insertions(+), 39 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 1e82f787c160..3116f579841a 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -243,7 +243,7 @@ static void __init intel_remapping_check(int num, int slot, int func)
 #define KB(x)	((x) * 1024UL)
 #define MB(x)	(KB (KB (x)))
 
-static size_t __init i830_tseg_size(void)
+static resource_size_t __init i830_tseg_size(void)
 {
 	u8 esmramc = read_pci_config_byte(0, 0, 0, I830_ESMRAMC);
 
@@ -256,7 +256,7 @@ static size_t __init i830_tseg_size(void)
 		return KB(512);
 }
 
-static size_t __init i845_tseg_size(void)
+static resource_size_t __init i845_tseg_size(void)
 {
 	u8 esmramc = read_pci_config_byte(0, 0, 0, I845_ESMRAMC);
 	u8 tseg_size = esmramc & I845_TSEG_SIZE_MASK;
@@ -273,7 +273,7 @@ static size_t __init i845_tseg_size(void)
 	return 0;
 }
 
-static size_t __init i85x_tseg_size(void)
+static resource_size_t __init i85x_tseg_size(void)
 {
 	u8 esmramc = read_pci_config_byte(0, 0, 0, I85X_ESMRAMC);
 
@@ -283,12 +283,12 @@ static size_t __init i85x_tseg_size(void)
 	return MB(1);
 }
 
-static size_t __init i830_mem_size(void)
+static resource_size_t __init i830_mem_size(void)
 {
 	return read_pci_config_byte(0, 0, 0, I830_DRB3) * MB(32);
 }
 
-static size_t __init i85x_mem_size(void)
+static resource_size_t __init i85x_mem_size(void)
 {
 	return read_pci_config_byte(0, 0, 1, I85X_DRB3) * MB(32);
 }
@@ -297,36 +297,36 @@ static size_t __init i85x_mem_size(void)
  * On 830/845/85x the stolen memory base isn't available in any
  * register. We need to calculate it as TOM-TSEG_SIZE-stolen_size.
  */
-static phys_addr_t __init i830_stolen_base(int num, int slot, int func,
-					   size_t stolen_size)
+static resource_size_t __init i830_stolen_base(int num, int slot, int func,
+					       resource_size_t stolen_size)
 {
-	return (phys_addr_t)i830_mem_size() - i830_tseg_size() - stolen_size;
+	return i830_mem_size() - i830_tseg_size() - stolen_size;
 }
 
-static phys_addr_t __init i845_stolen_base(int num, int slot, int func,
-					   size_t stolen_size)
+static resource_size_t __init i845_stolen_base(int num, int slot, int func,
+					       resource_size_t stolen_size)
 {
-	return (phys_addr_t)i830_mem_size() - i845_tseg_size() - stolen_size;
+	return i830_mem_size() - i845_tseg_size() - stolen_size;
 }
 
-static phys_addr_t __init i85x_stolen_base(int num, int slot, int func,
-					   size_t stolen_size)
+static resource_size_t __init i85x_stolen_base(int num, int slot, int func,
+					       resource_size_t stolen_size)
 {
-	return (phys_addr_t)i85x_mem_size() - i85x_tseg_size() - stolen_size;
+	return i85x_mem_size() - i85x_tseg_size() - stolen_size;
 }
 
-static phys_addr_t __init i865_stolen_base(int num, int slot, int func,
-					   size_t stolen_size)
+static resource_size_t __init i865_stolen_base(int num, int slot, int func,
+					       resource_size_t stolen_size)
 {
 	u16 toud = 0;
 
 	toud = read_pci_config_16(0, 0, 0, I865_TOUD);
 
-	return (phys_addr_t)(toud << 16) + i845_tseg_size();
+	return (resource_size_t)(toud << 16) + i845_tseg_size();
 }
 
-static phys_addr_t __init gen3_stolen_base(int num, int slot, int func,
-					   size_t stolen_size)
+static resource_size_t __init gen3_stolen_base(int num, int slot, int func,
+					       resource_size_t stolen_size)
 {
 	u32 bsm;
 
@@ -337,10 +337,10 @@ static phys_addr_t __init gen3_stolen_base(int num, int slot, int func,
 	 */
 	bsm = read_pci_config(num, slot, func, INTEL_BSM);
 
-	return (phys_addr_t)bsm & INTEL_BSM_MASK;
+	return bsm & INTEL_BSM_MASK;
 }
 
-static size_t __init i830_stolen_size(int num, int slot, int func)
+static resource_size_t __init i830_stolen_size(int num, int slot, int func)
 {
 	u16 gmch_ctrl;
 	u16 gms;
@@ -361,7 +361,7 @@ static size_t __init i830_stolen_size(int num, int slot, int func)
 	return 0;
 }
 
-static size_t __init gen3_stolen_size(int num, int slot, int func)
+static resource_size_t __init gen3_stolen_size(int num, int slot, int func)
 {
 	u16 gmch_ctrl;
 	u16 gms;
@@ -390,7 +390,7 @@ static size_t __init gen3_stolen_size(int num, int slot, int func)
 	return 0;
 }
 
-static size_t __init gen6_stolen_size(int num, int slot, int func)
+static resource_size_t __init gen6_stolen_size(int num, int slot, int func)
 {
 	u16 gmch_ctrl;
 	u16 gms;
@@ -398,10 +398,10 @@ static size_t __init gen6_stolen_size(int num, int slot, int func)
 	gmch_ctrl = read_pci_config_16(num, slot, func, SNB_GMCH_CTRL);
 	gms = (gmch_ctrl >> SNB_GMCH_GMS_SHIFT) & SNB_GMCH_GMS_MASK;
 
-	return (size_t)gms * MB(32);
+	return gms * MB(32);
 }
 
-static size_t __init gen8_stolen_size(int num, int slot, int func)
+static resource_size_t __init gen8_stolen_size(int num, int slot, int func)
 {
 	u16 gmch_ctrl;
 	u16 gms;
@@ -409,10 +409,10 @@ static size_t __init gen8_stolen_size(int num, int slot, int func)
 	gmch_ctrl = read_pci_config_16(num, slot, func, SNB_GMCH_CTRL);
 	gms = (gmch_ctrl >> BDW_GMCH_GMS_SHIFT) & BDW_GMCH_GMS_MASK;
 
-	return (size_t)gms * MB(32);
+	return gms * MB(32);
 }
 
-static size_t __init chv_stolen_size(int num, int slot, int func)
+static resource_size_t __init chv_stolen_size(int num, int slot, int func)
 {
 	u16 gmch_ctrl;
 	u16 gms;
@@ -426,14 +426,14 @@ static size_t __init chv_stolen_size(int num, int slot, int func)
 	 * 0x17 to 0x1d: 4MB increments start at 36MB
 	 */
 	if (gms < 0x11)
-		return (size_t)gms * MB(32);
+		return gms * MB(32);
 	else if (gms < 0x17)
-		return (size_t)(gms - 0x11 + 2) * MB(4);
+		return (gms - 0x11 + 2) * MB(4);
 	else
-		return (size_t)(gms - 0x17 + 9) * MB(4);
+		return (gms - 0x17 + 9) * MB(4);
 }
 
-static size_t __init gen9_stolen_size(int num, int slot, int func)
+static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
 {
 	u16 gmch_ctrl;
 	u16 gms;
@@ -444,14 +444,15 @@ static size_t __init gen9_stolen_size(int num, int slot, int func)
 	/* 0x0  to 0xef: 32MB increments starting at 0MB */
 	/* 0xf0 to 0xfe: 4MB increments starting at 4MB */
 	if (gms < 0xf0)
-		return (size_t)gms * MB(32);
+		return gms * MB(32);
 	else
-		return (size_t)(gms - 0xf0 + 1) * MB(4);
+		return (gms - 0xf0 + 1) * MB(4);
 }
 
 struct intel_early_ops {
-	size_t (*stolen_size)(int num, int slot, int func);
-	phys_addr_t (*stolen_base)(int num, int slot, int func, size_t size);
+	resource_size_t (*stolen_size)(int num, int slot, int func);
+	resource_size_t (*stolen_base)(int num, int slot, int func,
+				       resource_size_t size);
 };
 
 static const struct intel_early_ops i830_early_ops __initconst = {
@@ -531,12 +532,15 @@ static const struct pci_device_id intel_early_ids[] __initconst = {
 	INTEL_CNL_IDS(&gen9_early_ops),
 };
 
+struct resource intel_graphics_stolen_res = DEFINE_RES_MEM(0, 0);
+EXPORT_SYMBOL(intel_graphics_stolen_res);
+
 static void __init
 intel_graphics_stolen(int num, int slot, int func,
 		      const struct intel_early_ops *early_ops)
 {
-	phys_addr_t base, end;
-	size_t size;
+	resource_size_t base, size;
+	resource_size_t end;
 
 	size = early_ops->stolen_size(num, slot, func);
 	base = early_ops->stolen_base(num, slot, func, size);
@@ -545,8 +549,12 @@ intel_graphics_stolen(int num, int slot, int func,
 		return;
 
 	end = base + size - 1;
-	printk(KERN_INFO "Reserving Intel graphics memory at %pa-%pa\n",
-	       &base, &end);
+
+	intel_graphics_stolen_res.start = base;
+	intel_graphics_stolen_res.end = end;
+
+	printk(KERN_INFO "Reserving Intel graphics memory at %pR\n",
+	       &intel_graphics_stolen_res);
 
 	/* Mark this space as reserved */
 	e820__range_add(base, size, E820_TYPE_RESERVED);
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 4e1b274e1164..c9e5a6621b95 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -36,6 +36,9 @@ extern bool i915_gpu_lower(void);
 extern bool i915_gpu_busy(void);
 extern bool i915_gpu_turbo_disable(void);
 
+/* Exported from arch/x86/kernel/early-quirks.c */
+extern struct resource intel_graphics_stolen_res;
+
 /*
  * The Bridge device's PCI config space has information about the
  * fb aperture size and the amount of pre-reserved memory.
-- 
2.14.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 2/8] x86/early-quirks: replace the magical increment start values
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
  2017-11-24 16:42 ` [PATCH 1/8] x86/early-quirks: Extend Intel graphics stolen memory placement to 64bit Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 17:06   ` Ville Syrjälä
  2017-11-24 16:42 ` [PATCH 3/8] drm/i915: nuke the duplicated stolen discovery Matthew Auld
                   ` (7 subsequent siblings)
  9 siblings, 1 reply; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: x86, Paulo Zanoni, H . Peter Anvin, Ingo Molnar

Replace the magical +2, +9 etc. with +MB, which is far easier to read.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/kernel/early-quirks.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 3116f579841a..3bc1e49d6c41 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -428,9 +428,9 @@ static resource_size_t __init chv_stolen_size(int num, int slot, int func)
 	if (gms < 0x11)
 		return gms * MB(32);
 	else if (gms < 0x17)
-		return (gms - 0x11 + 2) * MB(4);
+		return (gms - 0x11) * MB(4) + MB(8);
 	else
-		return (gms - 0x17 + 9) * MB(4);
+		return (gms - 0x17) * MB(4) + MB(36);
 }
 
 static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
@@ -446,7 +446,7 @@ static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
 	if (gms < 0xf0)
 		return gms * MB(32);
 	else
-		return (gms - 0xf0 + 1) * MB(4);
+		return (gms - 0xf0) * MB(4) + MB(4);
 }
 
 struct intel_early_ops {
-- 
2.14.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 3/8] drm/i915: nuke the duplicated stolen discovery
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
  2017-11-24 16:42 ` [PATCH 1/8] x86/early-quirks: Extend Intel graphics stolen memory placement to 64bit Matthew Auld
  2017-11-24 16:42 ` [PATCH 2/8] x86/early-quirks: replace the magical increment start values Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:42 ` [PATCH 4/8] drm/i915: s/mappable_end/mappable_size/ Matthew Auld
                   ` (6 subsequent siblings)
  9 siblings, 0 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: Paulo Zanoni

We duplicate the stolen discovery code in early-quirks and in i915,
however now the stolen region is exported as a resource from
early-quirks we can nuke the duplication.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c    |  51 +--------------
 drivers/gpu/drm/i915/i915_gem_stolen.c | 109 +--------------------------------
 2 files changed, 4 insertions(+), 156 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 41a203e0c160..6b567bab2363 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2949,50 +2949,6 @@ static unsigned int chv_get_total_gtt_size(u16 gmch_ctrl)
 	return 0;
 }
 
-static size_t gen6_get_stolen_size(u16 snb_gmch_ctl)
-{
-	snb_gmch_ctl >>= SNB_GMCH_GMS_SHIFT;
-	snb_gmch_ctl &= SNB_GMCH_GMS_MASK;
-	return (size_t)snb_gmch_ctl << 25; /* 32 MB units */
-}
-
-static size_t gen8_get_stolen_size(u16 bdw_gmch_ctl)
-{
-	bdw_gmch_ctl >>= BDW_GMCH_GMS_SHIFT;
-	bdw_gmch_ctl &= BDW_GMCH_GMS_MASK;
-	return (size_t)bdw_gmch_ctl << 25; /* 32 MB units */
-}
-
-static size_t chv_get_stolen_size(u16 gmch_ctrl)
-{
-	gmch_ctrl >>= SNB_GMCH_GMS_SHIFT;
-	gmch_ctrl &= SNB_GMCH_GMS_MASK;
-
-	/*
-	 * 0x0  to 0x10: 32MB increments starting at 0MB
-	 * 0x11 to 0x16: 4MB increments starting at 8MB
-	 * 0x17 to 0x1d: 4MB increments start at 36MB
-	 */
-	if (gmch_ctrl < 0x11)
-		return (size_t)gmch_ctrl << 25;
-	else if (gmch_ctrl < 0x17)
-		return (size_t)(gmch_ctrl - 0x11 + 2) << 22;
-	else
-		return (size_t)(gmch_ctrl - 0x17 + 9) << 22;
-}
-
-static size_t gen9_get_stolen_size(u16 gen9_gmch_ctl)
-{
-	gen9_gmch_ctl >>= BDW_GMCH_GMS_SHIFT;
-	gen9_gmch_ctl &= BDW_GMCH_GMS_MASK;
-
-	if (gen9_gmch_ctl < 0xf0)
-		return (size_t)gen9_gmch_ctl << 25; /* 32 MB units */
-	else
-		/* 4MB increments starting at 0xf0 for 4MB */
-		return (size_t)(gen9_gmch_ctl - 0xf0 + 1) << 22;
-}
-
 static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size)
 {
 	struct drm_i915_private *dev_priv = ggtt->base.i915;
@@ -3343,14 +3299,13 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
 
 	pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
 
+	ggtt->stolen_size = resource_size(&intel_graphics_stolen_res);
+
 	if (INTEL_GEN(dev_priv) >= 9) {
-		ggtt->stolen_size = gen9_get_stolen_size(snb_gmch_ctl);
 		size = gen8_get_total_gtt_size(snb_gmch_ctl);
 	} else if (IS_CHERRYVIEW(dev_priv)) {
-		ggtt->stolen_size = chv_get_stolen_size(snb_gmch_ctl);
 		size = chv_get_total_gtt_size(snb_gmch_ctl);
 	} else {
-		ggtt->stolen_size = gen8_get_stolen_size(snb_gmch_ctl);
 		size = gen8_get_total_gtt_size(snb_gmch_ctl);
 	}
 
@@ -3408,7 +3363,7 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
 		DRM_ERROR("Can't set DMA mask/consistent mask (%d)\n", err);
 	pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
 
-	ggtt->stolen_size = gen6_get_stolen_size(snb_gmch_ctl);
+	ggtt->stolen_size = resource_size(&intel_graphics_stolen_res);
 
 	size = gen6_get_total_gtt_size(snb_gmch_ctl);
 	ggtt->base.total = (size / sizeof(gen6_pte_t)) << PAGE_SHIFT;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 1877ae9a1d9b..f1b8eeda0058 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -30,9 +30,6 @@
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
-#define KB(x) ((x) * 1024)
-#define MB(x) (KB(x) * 1024)
-
 /*
  * The BIOS typically reserves some of the system's memory for the exclusive
  * use of the integrated graphics. This memory is no longer available for
@@ -81,113 +78,9 @@ void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
 
 static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
 {
-	struct pci_dev *pdev = dev_priv->drm.pdev;
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
+	dma_addr_t base = intel_graphics_stolen_res.start;
 	struct resource *r;
-	dma_addr_t base;
-
-	/* Almost universally we can find the Graphics Base of Stolen Memory
-	 * at register BSM (0x5c) in the igfx configuration space. On a few
-	 * (desktop) machines this is also mirrored in the bridge device at
-	 * different locations, or in the MCHBAR.
-	 *
-	 * On 865 we just check the TOUD register.
-	 *
-	 * On 830/845/85x the stolen memory base isn't available in any
-	 * register. We need to calculate it as TOM-TSEG_SIZE-stolen_size.
-	 *
-	 */
-	base = 0;
-	if (INTEL_GEN(dev_priv) >= 3) {
-		u32 bsm;
-
-		pci_read_config_dword(pdev, INTEL_BSM, &bsm);
-
-		base = bsm & INTEL_BSM_MASK;
-	} else if (IS_I865G(dev_priv)) {
-		u32 tseg_size = 0;
-		u16 toud = 0;
-		u8 tmp;
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
-					 I845_ESMRAMC, &tmp);
-
-		if (tmp & TSEG_ENABLE) {
-			switch (tmp & I845_TSEG_SIZE_MASK) {
-			case I845_TSEG_SIZE_512K:
-				tseg_size = KB(512);
-				break;
-			case I845_TSEG_SIZE_1M:
-				tseg_size = MB(1);
-				break;
-			}
-		}
-
-		pci_bus_read_config_word(pdev->bus, PCI_DEVFN(0, 0),
-					 I865_TOUD, &toud);
-
-		base = (toud << 16) + tseg_size;
-	} else if (IS_I85X(dev_priv)) {
-		u32 tseg_size = 0;
-		u32 tom;
-		u8 tmp;
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
-					 I85X_ESMRAMC, &tmp);
-
-		if (tmp & TSEG_ENABLE)
-			tseg_size = MB(1);
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 1),
-					 I85X_DRB3, &tmp);
-		tom = tmp * MB(32);
-
-		base = tom - tseg_size - ggtt->stolen_size;
-	} else if (IS_I845G(dev_priv)) {
-		u32 tseg_size = 0;
-		u32 tom;
-		u8 tmp;
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
-					 I845_ESMRAMC, &tmp);
-
-		if (tmp & TSEG_ENABLE) {
-			switch (tmp & I845_TSEG_SIZE_MASK) {
-			case I845_TSEG_SIZE_512K:
-				tseg_size = KB(512);
-				break;
-			case I845_TSEG_SIZE_1M:
-				tseg_size = MB(1);
-				break;
-			}
-		}
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
-					 I830_DRB3, &tmp);
-		tom = tmp * MB(32);
-
-		base = tom - tseg_size - ggtt->stolen_size;
-	} else if (IS_I830(dev_priv)) {
-		u32 tseg_size = 0;
-		u32 tom;
-		u8 tmp;
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
-					 I830_ESMRAMC, &tmp);
-
-		if (tmp & TSEG_ENABLE) {
-			if (tmp & I830_TSEG_SIZE_1M)
-				tseg_size = MB(1);
-			else
-				tseg_size = KB(512);
-		}
-
-		pci_bus_read_config_byte(pdev->bus, PCI_DEVFN(0, 0),
-					 I830_DRB3, &tmp);
-		tom = tmp * MB(32);
-
-		base = tom - tseg_size - ggtt->stolen_size;
-	}
 
 	if (base == 0 || add_overflows(base, ggtt->stolen_size))
 		return 0;
-- 
2.14.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 4/8] drm/i915: s/mappable_end/mappable_size/
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (2 preceding siblings ...)
  2017-11-24 16:42 ` [PATCH 3/8] drm/i915: nuke the duplicated stolen discovery Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:42 ` [PATCH 5/8] drm/i915: make dsm struct resource centric Matthew Auld
                   ` (5 subsequent siblings)
  9 siblings, 0 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: Paulo Zanoni

In a later patch we introduce 'struct resource mappable', which means we
will have both mappable.end and mappable_end, both meaning different
things. Therefore to avoid any confusion prefer mappable_size for
mappable_end, since it is effectively the size of the resource.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/char/agp/intel-gtt.c                  |  4 ++--
 drivers/gpu/drm/i915/gvt/gvt.h                |  2 +-
 drivers/gpu/drm/i915/i915_debugfs.c           |  2 +-
 drivers/gpu/drm/i915/i915_drv.c               |  2 +-
 drivers/gpu/drm/i915/i915_gem.c               |  8 +++----
 drivers/gpu/drm/i915/i915_gem_execbuffer.c    |  2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 30 +++++++++++++--------------
 drivers/gpu/drm/i915/i915_gem_gtt.h           |  2 +-
 drivers/gpu/drm/i915/i915_vgpu.c              | 12 +++++------
 drivers/gpu/drm/i915/i915_vma.c               |  4 ++--
 drivers/gpu/drm/i915/intel_fbdev.c            |  2 +-
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |  2 +-
 drivers/gpu/drm/i915/selftests/i915_vma.c     | 22 ++++++++++----------
 drivers/gpu/drm/i915/selftests/mock_gtt.c     |  2 +-
 include/drm/intel-gtt.h                       |  2 +-
 15 files changed, 49 insertions(+), 49 deletions(-)

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9b6b6023193b..2a321ee2943a 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1424,12 +1424,12 @@ EXPORT_SYMBOL(intel_gmch_probe);
 void intel_gtt_get(u64 *gtt_total,
 		   u32 *stolen_size,
 		   phys_addr_t *mappable_base,
-		   u64 *mappable_end)
+		   u64 *mappable_size)
 {
 	*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
 	*stolen_size = intel_private.stolen_size;
 	*mappable_base = intel_private.gma_bus_addr;
-	*mappable_end = intel_private.gtt_mappable_entries << PAGE_SHIFT;
+	*mappable_size = intel_private.gtt_mappable_entries << PAGE_SHIFT;
 }
 EXPORT_SYMBOL(intel_gtt_get);
 
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 393066726993..028d00e61bad 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -335,7 +335,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt);
 #define HOST_FENCE 4
 
 /* Aperture/GM space definitions for GVT device */
-#define gvt_aperture_sz(gvt)	  (gvt->dev_priv->ggtt.mappable_end)
+#define gvt_aperture_sz(gvt)	  (gvt->dev_priv->ggtt.mappable_size)
 #define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
 
 #define gvt_ggtt_gm_sz(gvt)	  (gvt->dev_priv->ggtt.base.total)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 28294470ae31..a05e2b92c02c 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -523,7 +523,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
 		   dpy_count, dpy_size);
 
 	seq_printf(m, "%llu [%llu] gtt total\n",
-		   ggtt->base.total, ggtt->mappable_end);
+		   ggtt->base.total, ggtt->mappable_size);
 	seq_printf(m, "Supported page sizes: %s\n",
 		   stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
 					buf, sizeof(buf)));
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 0793a27e2b95..e1bb0c8822aa 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -729,7 +729,7 @@ static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
 		return -ENOMEM;
 
 	ap->ranges[0].base = ggtt->mappable_base;
-	ap->ranges[0].size = ggtt->mappable_end;
+	ap->ranges[0].size = ggtt->mappable_size;
 
 	primary =
 		pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e03d6c2554e2..05cc4f2df1bf 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -66,7 +66,7 @@ insert_mappable_node(struct i915_ggtt *ggtt,
 	memset(node, 0, sizeof(*node));
 	return drm_mm_insert_node_in_range(&ggtt->base.mm, node,
 					   size, 0, I915_COLOR_UNEVICTABLE,
-					   0, ggtt->mappable_end,
+					   0, ggtt->mappable_size,
 					   DRM_MM_INSERT_LOW);
 }
 
@@ -4158,7 +4158,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 		 * the object in and out of the Global GTT and
 		 * waste a lot of cycles under the mutex.
 		 */
-		if (obj->base.size > dev_priv->ggtt.mappable_end)
+		if (obj->base.size > dev_priv->ggtt.mappable_size)
 			return ERR_PTR(-E2BIG);
 
 		/* If NONBLOCK is set the caller is optimistically
@@ -4177,7 +4177,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 		 * we could try to minimise harm to others.
 		 */
 		if (flags & PIN_NONBLOCK &&
-		    obj->base.size > dev_priv->ggtt.mappable_end / 2)
+		    obj->base.size > dev_priv->ggtt.mappable_size / 2)
 			return ERR_PTR(-ENOSPC);
 	}
 
@@ -4191,7 +4191,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 				return ERR_PTR(-ENOSPC);
 
 			if (flags & PIN_MAPPABLE &&
-			    vma->fence_size > dev_priv->ggtt.mappable_end / 2)
+			    vma->fence_size > dev_priv->ggtt.mappable_size / 2)
 				return ERR_PTR(-ENOSPC);
 		}
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 14d9e61a1e06..8224abbb0f2d 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -986,7 +986,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
 			err = drm_mm_insert_node_in_range
 				(&ggtt->base.mm, &cache->node,
 				 PAGE_SIZE, 0, I915_COLOR_UNEVICTABLE,
-				 0, ggtt->mappable_end,
+				 0, ggtt->mappable_size,
 				 DRM_MM_INSERT_LOW);
 			if (err) /* no inactive aperture space, use cpu reloc */
 				return NULL;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 6b567bab2363..94faeaebf0d0 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2001,7 +2001,7 @@ static int gen6_ppgtt_allocate_page_directories(struct i915_hw_ppgtt *ppgtt)
 	if (ret)
 		goto err_out;
 
-	if (ppgtt->node.start < ggtt->mappable_end)
+	if (ppgtt->node.start < ggtt->mappable_size)
 		DRM_DEBUG("Forced to use aperture for PDEs\n");
 
 	ppgtt->pd.base.ggtt_offset =
@@ -2840,7 +2840,7 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	/* Reserve a mappable slot for our lockless error capture */
 	ret = drm_mm_insert_node_in_range(&ggtt->base.mm, &ggtt->error_capture,
 					  PAGE_SIZE, 0, I915_COLOR_UNEVICTABLE,
-					  0, ggtt->mappable_end,
+					  0, ggtt->mappable_size,
 					  DRM_MM_INSERT_LOW);
 	if (ret)
 		return ret;
@@ -3289,7 +3289,7 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
 
 	/* TODO: We're not aware of mappable constraints on gen8 yet */
 	ggtt->mappable_base = pci_resource_start(pdev, 2);
-	ggtt->mappable_end = pci_resource_len(pdev, 2);
+	ggtt->mappable_size = pci_resource_len(pdev, 2);
 
 	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(39));
 	if (!err)
@@ -3346,13 +3346,13 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
 	int err;
 
 	ggtt->mappable_base = pci_resource_start(pdev, 2);
-	ggtt->mappable_end = pci_resource_len(pdev, 2);
+	ggtt->mappable_size = pci_resource_len(pdev, 2);
 
 	/* 64/512MB is the current min/max we actually know of, but this is just
 	 * a coarse sanity check.
 	 */
-	if (ggtt->mappable_end < (64<<20) || ggtt->mappable_end > (512<<20)) {
-		DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_end);
+	if (ggtt->mappable_size < (64<<20) || ggtt->mappable_size > (512<<20)) {
+		DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_size);
 		return -ENXIO;
 	}
 
@@ -3412,7 +3412,7 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
 	intel_gtt_get(&ggtt->base.total,
 		      &ggtt->stolen_size,
 		      &ggtt->mappable_base,
-		      &ggtt->mappable_end);
+		      &ggtt->mappable_size);
 
 	ggtt->do_idle_maps = needs_idle_maps(dev_priv);
 	ggtt->base.insert_page = i915_ggtt_insert_page;
@@ -3460,7 +3460,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 	 */
 	if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading) {
 		ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP);
-		ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
+		ggtt->mappable_size = min(ggtt->mappable_size, ggtt->base.total);
 	}
 
 	if ((ggtt->base.total - 1) >> 32) {
@@ -3468,20 +3468,20 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 			  " of address space! Found %lldM!\n",
 			  ggtt->base.total >> 20);
 		ggtt->base.total = 1ULL << 32;
-		ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
+		ggtt->mappable_size = min(ggtt->mappable_size, ggtt->base.total);
 	}
 
-	if (ggtt->mappable_end > ggtt->base.total) {
+	if (ggtt->mappable_size > ggtt->base.total) {
 		DRM_ERROR("mappable aperture extends past end of GGTT,"
 			  " aperture=%llx, total=%llx\n",
-			  ggtt->mappable_end, ggtt->base.total);
-		ggtt->mappable_end = ggtt->base.total;
+			  ggtt->mappable_size, ggtt->base.total);
+		ggtt->mappable_size = ggtt->base.total;
 	}
 
 	/* GMADR is the PCI mmio aperture into the global GTT. */
 	DRM_INFO("Memory usable by graphics device = %lluM\n",
 		 ggtt->base.total >> 20);
-	DRM_DEBUG_DRIVER("GMADR size = %lldM\n", ggtt->mappable_end >> 20);
+	DRM_DEBUG_DRIVER("GMADR size = %lldM\n", ggtt->mappable_size >> 20);
 	DRM_DEBUG_DRIVER("GTT stolen size = %uM\n", ggtt->stolen_size >> 20);
 	if (intel_vtd_active())
 		DRM_INFO("VT-d active for gfx access\n");
@@ -3513,12 +3513,12 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
 
 	if (!io_mapping_init_wc(&dev_priv->ggtt.mappable,
 				dev_priv->ggtt.mappable_base,
-				dev_priv->ggtt.mappable_end)) {
+				dev_priv->ggtt.mappable_size)) {
 		ret = -EIO;
 		goto out_gtt_cleanup;
 	}
 
-	ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, ggtt->mappable_end);
+	ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, ggtt->mappable_size);
 
 	/*
 	 * Initialise stolen early so that we may reserve preallocated
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 93211a96fdad..922d796983d5 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -371,7 +371,7 @@ struct i915_ggtt {
 	struct io_mapping mappable;	/* Mapping to our CPU mappable region */
 
 	phys_addr_t mappable_base;	/* PA of our GMADR */
-	u64 mappable_end;		/* End offset that we can CPU map */
+	u64 mappable_size;		/* Total mappable size that we can CPU map */
 
 	/* Stolen memory is segmented in hardware with different portions
 	 * offlimits to certain functions.
diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index 5fe9f3f39467..d1add5c4e312 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.c
+++ b/drivers/gpu/drm/i915/i915_vgpu.c
@@ -220,17 +220,17 @@ int intel_vgt_balloon(struct drm_i915_private *dev_priv)
 	DRM_INFO("Unmappable graphic memory: base 0x%lx size %ldKiB\n",
 		 unmappable_base, unmappable_size / 1024);
 
-	if (mappable_end > ggtt->mappable_end ||
-	    unmappable_base < ggtt->mappable_end ||
+	if (mappable_end > ggtt->mappable_size ||
+	    unmappable_base < ggtt->mappable_size ||
 	    unmappable_end > ggtt_end) {
 		DRM_ERROR("Invalid ballooning configuration!\n");
 		return -EINVAL;
 	}
 
 	/* Unmappable graphic memory ballooning */
-	if (unmappable_base > ggtt->mappable_end) {
+	if (unmappable_base > ggtt->mappable_size) {
 		ret = vgt_balloon_space(ggtt, &bl_info.space[2],
-					ggtt->mappable_end, unmappable_base);
+					ggtt->mappable_size, unmappable_base);
 
 		if (ret)
 			goto err;
@@ -252,9 +252,9 @@ int intel_vgt_balloon(struct drm_i915_private *dev_priv)
 			goto err_upon_unmappable;
 	}
 
-	if (mappable_end < ggtt->mappable_end) {
+	if (mappable_end < ggtt->mappable_size) {
 		ret = vgt_balloon_space(ggtt, &bl_info.space[1],
-					mappable_end, ggtt->mappable_end);
+					mappable_end, ggtt->mappable_size);
 
 		if (ret)
 			goto err_below_mappable;
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index bf6d8d1eaabe..a9413b601230 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -401,7 +401,7 @@ void __i915_vma_set_map_and_fenceable(struct i915_vma *vma)
 	fenceable = (vma->node.size >= vma->fence_size &&
 		     IS_ALIGNED(vma->node.start, vma->fence_alignment));
 
-	mappable = vma->node.start + vma->fence_size <= i915_vm_to_ggtt(vma->vm)->mappable_end;
+	mappable = vma->node.start + vma->fence_size <= i915_vm_to_ggtt(vma->vm)->mappable_size;
 
 	if (mappable && fenceable)
 		vma->flags |= I915_VMA_CAN_FENCE;
@@ -486,7 +486,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
 
 	end = vma->vm->total;
 	if (flags & PIN_MAPPABLE)
-		end = min_t(u64, end, dev_priv->ggtt.mappable_end);
+		end = min_t(u64, end, dev_priv->ggtt.mappable_size);
 	if (flags & PIN_ZONE_4G)
 		end = min_t(u64, end, (1ULL << 32) - I915_GTT_PAGE_SIZE);
 	GEM_BUG_ON(!IS_ALIGNED(end, I915_GTT_PAGE_SIZE));
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index b8af35187d22..e56262d1bc87 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -237,7 +237,7 @@ static int intelfb_create(struct drm_fb_helper *helper,
 
 	/* setup aperture base/size for vesafb takeover */
 	info->apertures->ranges[0].base = dev->mode_config.fb_base;
-	info->apertures->ranges[0].size = ggtt->mappable_end;
+	info->apertures->ranges[0].size = ggtt->mappable_size;
 
 	info->fix.smem_start = dev->mode_config.fb_base + i915_ggtt_offset(vma);
 	info->fix.smem_len = vma->node.size;
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 6491cf0a4f46..e97ae4b4a684 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1054,7 +1054,7 @@ static int igt_ggtt_page(void *arg)
 	err = drm_mm_insert_node_in_range(&ggtt->base.mm, &tmp,
 					  1024 * PAGE_SIZE, 0,
 					  I915_COLOR_UNEVICTABLE,
-					  0, ggtt->mappable_end,
+					  0, ggtt->mappable_size,
 					  DRM_MM_INSERT_LOW);
 	if (err)
 		goto out_unpin;
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index eb89e301b602..f2e15bc1b82a 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -257,30 +257,30 @@ static int igt_vma_pin1(void *arg)
 
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | 4096),
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | 8192),
-		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
-		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
+		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
+		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.base.total - 4096)),
 
-		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_end - 4096)),
-		INVALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | i915->ggtt.mappable_end),
+		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_size - 4096)),
+		INVALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | i915->ggtt.mappable_size),
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | (i915->ggtt.base.total - 4096)),
 		INVALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | i915->ggtt.base.total),
 		INVALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | round_down(U64_MAX, PAGE_SIZE)),
 
 		VALID(4096, PIN_GLOBAL),
 		VALID(8192, PIN_GLOBAL),
-		VALID(i915->ggtt.mappable_end - 4096, PIN_GLOBAL | PIN_MAPPABLE),
-		VALID(i915->ggtt.mappable_end, PIN_GLOBAL | PIN_MAPPABLE),
-		NOSPACE(i915->ggtt.mappable_end + 4096, PIN_GLOBAL | PIN_MAPPABLE),
+		VALID(i915->ggtt.mappable_size - 4096, PIN_GLOBAL | PIN_MAPPABLE),
+		VALID(i915->ggtt.mappable_size, PIN_GLOBAL | PIN_MAPPABLE),
+		NOSPACE(i915->ggtt.mappable_size + 4096, PIN_GLOBAL | PIN_MAPPABLE),
 		VALID(i915->ggtt.base.total - 4096, PIN_GLOBAL),
 		VALID(i915->ggtt.base.total, PIN_GLOBAL),
 		NOSPACE(i915->ggtt.base.total + 4096, PIN_GLOBAL),
 		NOSPACE(round_down(U64_MAX, PAGE_SIZE), PIN_GLOBAL),
-		INVALID(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_end - 4096)),
+		INVALID(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_size - 4096)),
 		INVALID(8192, PIN_GLOBAL | PIN_OFFSET_FIXED | (i915->ggtt.base.total - 4096)),
 		INVALID(8192, PIN_GLOBAL | PIN_OFFSET_FIXED | (round_down(U64_MAX, PAGE_SIZE) - 4096)),
 
-		VALID(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
+		VALID(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
 
 #if !IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)
 		/* Misusing BIAS is a programming error (it is not controllable
@@ -288,9 +288,9 @@ static int igt_vma_pin1(void *arg)
 		 * However, the tests are still quite interesting for checking
 		 * variable start, end and size.
 		 */
-		NOSPACE(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | i915->ggtt.mappable_end),
+		NOSPACE(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | i915->ggtt.mappable_size),
 		NOSPACE(0, PIN_GLOBAL | PIN_OFFSET_BIAS | i915->ggtt.base.total),
-		NOSPACE(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
+		NOSPACE(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
 		NOSPACE(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.base.total - 4096)),
 #endif
 		{ },
diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c
index 336e1afb250f..d3155f36de89 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c
@@ -111,7 +111,7 @@ void mock_init_ggtt(struct drm_i915_private *i915)
 	ggtt->base.i915 = i915;
 
 	ggtt->mappable_base = 0;
-	ggtt->mappable_end = 2048 * PAGE_SIZE;
+	ggtt->mappable_size = 2048 * PAGE_SIZE;
 	ggtt->base.total = 4096 * PAGE_SIZE;
 
 	ggtt->base.clear_range = nop_clear_range;
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index c5db7975c640..e901de0b6dd8 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -7,7 +7,7 @@
 void intel_gtt_get(u64 *gtt_total,
 		   u32 *stolen_size,
 		   phys_addr_t *mappable_base,
-		   u64 *mappable_end);
+		   u64 *mappable_size);
 
 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 		     struct agp_bridge_data *bridge);
-- 
2.14.3

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^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 5/8] drm/i915: make dsm struct resource centric
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (3 preceding siblings ...)
  2017-11-24 16:42 ` [PATCH 4/8] drm/i915: s/mappable_end/mappable_size/ Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:42 ` [PATCH 6/8] drm/i915: make reserved " Matthew Auld
                   ` (4 subsequent siblings)
  9 siblings, 0 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: Paulo Zanoni

v2: check range_overflow when writing to 32b registers (Chris)
    pepper in some comments (Chris)

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h        | 13 ++++++++++---
 drivers/gpu/drm/i915/i915_gem_stolen.c | 19 +++++++++++--------
 drivers/gpu/drm/i915/intel_fbc.c       | 10 ++++++++--
 drivers/gpu/drm/i915/intel_pm.c        | 17 +++++++++++++----
 4 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d575a56fc100..313ab1e98fc7 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1536,9 +1536,6 @@ struct i915_gem_mm {
 	 */
 	struct pagevec wc_stash;
 
-	/** Usable portion of the GTT for GEM */
-	dma_addr_t stolen_base; /* limited to low memory (32-bit) */
-
 	/**
 	 * tmpfs instance used for shmem backed objects
 	 */
@@ -2252,6 +2249,16 @@ struct drm_i915_private {
 
 	const struct intel_device_info info;
 
+	/**
+	 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
+	 * end of stolen which we can optionally use to create GEM objects
+	 * backed by stolen memory. Note that ggtt->stolen_usable_size tells us
+	 * exactly how much of this we are actually allowed to use, given that
+	 * some portion of it is in fact reserved for use by hardware functions,
+	 * while ggtt->stolen_size gives us the total size of the stolen region.
+	 */
+	struct resource dsm;
+
 	void __iomem *regs;
 
 	struct intel_uncore uncore;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index f1b8eeda0058..36c8ec04fd7a 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -185,7 +185,7 @@ static void g4x_get_stolen_reserved(struct drm_i915_private *dev_priv,
 	uint32_t reg_val = I915_READ(IS_GM45(dev_priv) ?
 				     CTG_STOLEN_RESERVED :
 				     ELK_STOLEN_RESERVED);
-	dma_addr_t stolen_top = dev_priv->mm.stolen_base + ggtt->stolen_size;
+	dma_addr_t stolen_top = dev_priv->dsm.start + ggtt->stolen_size;
 
 	if ((reg_val & G4X_STOLEN_RESERVED_ENABLE) == 0) {
 		*base = 0;
@@ -316,7 +316,7 @@ static void bdw_get_stolen_reserved(struct drm_i915_private *dev_priv,
 		return;
 	}
 
-	stolen_top = dev_priv->mm.stolen_base + ggtt->stolen_size;
+	stolen_top = dev_priv->dsm.start + ggtt->stolen_size;
 
 	*base = reg_val & GEN6_STOLEN_RESERVED_ADDR_MASK;
 
@@ -352,11 +352,14 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 	if (ggtt->stolen_size == 0)
 		return 0;
 
-	dev_priv->mm.stolen_base = i915_stolen_to_dma(dev_priv);
-	if (dev_priv->mm.stolen_base == 0)
+	dev_priv->dsm.start = i915_stolen_to_dma(dev_priv);
+	if (dev_priv->dsm.start == 0)
 		return 0;
 
-	stolen_top = dev_priv->mm.stolen_base + ggtt->stolen_size;
+	dev_priv->dsm.end = dev_priv->dsm.start + ggtt->stolen_size - 1;
+	dev_priv->dsm.flags = IORESOURCE_MEM;
+
+	stolen_top = dev_priv->dsm.end + 1;
 	reserved_base = 0;
 	reserved_size = 0;
 
@@ -397,12 +400,12 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 		reserved_base = stolen_top;
 	}
 
-	if (reserved_base < dev_priv->mm.stolen_base ||
+	if (reserved_base < dev_priv->dsm.start ||
 	    reserved_base + reserved_size > stolen_top) {
 		dma_addr_t reserved_top = reserved_base + reserved_size;
 		DRM_ERROR("Stolen reserved area [%pad - %pad] outside stolen memory [%pad - %pad]\n",
 			  &reserved_base, &reserved_top,
-			  &dev_priv->mm.stolen_base, &stolen_top);
+			  &dev_priv->dsm.start, &stolen_top);
 		return 0;
 	}
 
@@ -460,7 +463,7 @@ i915_pages_create_for_stolen(struct drm_device *dev,
 	sg->offset = 0;
 	sg->length = size;
 
-	sg_dma_address(sg) = (dma_addr_t)dev_priv->mm.stolen_base + offset;
+	sg_dma_address(sg) = (dma_addr_t)dev_priv->dsm.start + offset;
 	sg_dma_len(sg) = size;
 
 	return st;
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 4aefc658a5cf..a291bb965e2e 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -615,10 +615,16 @@ static int intel_fbc_alloc_cfb(struct intel_crtc *crtc)
 
 		fbc->compressed_llb = compressed_llb;
 
+		GEM_BUG_ON(range_overflows_t(u64, dev_priv->dsm.start,
+					     fbc->compressed_fb.start,
+					     U32_MAX));
+		GEM_BUG_ON(range_overflows_t(u64, dev_priv->dsm.start,
+					     fbc->compressed_llb->start,
+					     U32_MAX));
 		I915_WRITE(FBC_CFB_BASE,
-			   dev_priv->mm.stolen_base + fbc->compressed_fb.start);
+			   dev_priv->dsm.start + fbc->compressed_fb.start);
 		I915_WRITE(FBC_LL_BASE,
-			   dev_priv->mm.stolen_base + compressed_llb->start);
+			   dev_priv->dsm.start + compressed_llb->start);
 	}
 
 	DRM_DEBUG_KMS("reserved %llu bytes of contiguous stolen space for FBC, threshold: %d\n",
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 03d67d8ab647..872d15f599d1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7070,7 +7070,7 @@ static void valleyview_check_pctx(struct drm_i915_private *dev_priv)
 {
 	unsigned long pctx_addr = I915_READ(VLV_PCBR) & ~4095;
 
-	WARN_ON(pctx_addr != dev_priv->mm.stolen_base +
+	WARN_ON(pctx_addr != dev_priv->dsm.start +
 			     dev_priv->vlv_pctx->stolen->start);
 }
 
@@ -7093,7 +7093,12 @@ static void cherryview_setup_pctx(struct drm_i915_private *dev_priv)
 	pcbr = I915_READ(VLV_PCBR);
 	if ((pcbr >> VLV_PCBR_ADDR_SHIFT) == 0) {
 		DRM_DEBUG_DRIVER("BIOS didn't set up PCBR, fixing up\n");
-		paddr = (dev_priv->mm.stolen_base +
+
+		GEM_BUG_ON(range_overflows_t(resource_size_t,
+					     dev_priv->dsm.start,
+					     (ggtt->stolen_size - pctx_size),
+					     U32_MAX));
+		paddr = (dev_priv->dsm.start +
 			 (ggtt->stolen_size - pctx_size));
 
 		pctx_paddr = (paddr & (~4095));
@@ -7115,7 +7120,7 @@ static void valleyview_setup_pctx(struct drm_i915_private *dev_priv)
 		/* BIOS set it up already, grab the pre-alloc'd space */
 		int pcbr_offset;
 
-		pcbr_offset = (pcbr & (~4095)) - dev_priv->mm.stolen_base;
+		pcbr_offset = (pcbr & (~4095)) - dev_priv->dsm.start;
 		pctx = i915_gem_object_create_stolen_for_preallocated(dev_priv,
 								      pcbr_offset,
 								      I915_GTT_OFFSET_NONE,
@@ -7139,7 +7144,11 @@ static void valleyview_setup_pctx(struct drm_i915_private *dev_priv)
 		goto out;
 	}
 
-	pctx_paddr = dev_priv->mm.stolen_base + pctx->stolen->start;
+	GEM_BUG_ON(range_overflows_t(u64,
+				     dev_priv->dsm.start,
+				     pctx->stolen->start,
+				     U32_MAX));
+	pctx_paddr = dev_priv->dsm.start + pctx->stolen->start;
 	I915_WRITE(VLV_PCBR, pctx_paddr);
 
 out:
-- 
2.14.3

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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 6/8] drm/i915: make reserved struct resource centric
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (4 preceding siblings ...)
  2017-11-24 16:42 ` [PATCH 5/8] drm/i915: make dsm struct resource centric Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:42 ` [PATCH 7/8] drm/i915: make mappable " Matthew Auld
                   ` (3 subsequent siblings)
  9 siblings, 0 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: Paulo Zanoni

v2: s/<= end + 1/< end/ (Chris)

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h        |  4 ++++
 drivers/gpu/drm/i915/i915_gem_gtt.h    |  2 --
 drivers/gpu/drm/i915/i915_gem_stolen.c | 16 ++++++++--------
 drivers/gpu/drm/i915/intel_pm.c        |  6 ++----
 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 313ab1e98fc7..e30a8a7812ba 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2258,6 +2258,10 @@ struct drm_i915_private {
 	 * while ggtt->stolen_size gives us the total size of the stolen region.
 	 */
 	struct resource dsm;
+	/**
+	 * Reseved portion of Data Stolen Memory
+	 */
+	struct resource dsm_reserved;
 
 	void __iomem *regs;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 922d796983d5..6eb34fd2c4ba 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -383,8 +383,6 @@ struct i915_ggtt {
 	 */
 	u32 stolen_size;		/* Total size of stolen memory */
 	u32 stolen_usable_size;	/* Total size minus reserved ranges */
-	u32 stolen_reserved_base;
-	u32 stolen_reserved_size;
 
 	/** "Graphics Stolen Memory" holds the global PTEs */
 	void __iomem *gsm;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 36c8ec04fd7a..2b7af60dfce0 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -333,6 +333,7 @@ static void bdw_get_stolen_reserved(struct drm_i915_private *dev_priv,
 int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
+	struct resource reserved = DEFINE_RES_MEM(0, 0);
 	dma_addr_t reserved_base, stolen_top;
 	u32 reserved_total, reserved_size;
 	u32 stolen_usable_start;
@@ -400,17 +401,16 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 		reserved_base = stolen_top;
 	}
 
-	if (reserved_base < dev_priv->dsm.start ||
-	    reserved_base + reserved_size > stolen_top) {
-		dma_addr_t reserved_top = reserved_base + reserved_size;
-		DRM_ERROR("Stolen reserved area [%pad - %pad] outside stolen memory [%pad - %pad]\n",
-			  &reserved_base, &reserved_top,
-			  &dev_priv->dsm.start, &stolen_top);
+	reserved.start = reserved_base;
+	reserved.end = reserved_base + reserved_size - 1;
+
+	if (!resource_contains(&dev_priv->dsm, &reserved)) {
+		DRM_ERROR("Stolen reserved area %pR outside stolen memory %pR\n",
+			  &reserved, &dev_priv->dsm);
 		return 0;
 	}
 
-	ggtt->stolen_reserved_base = reserved_base;
-	ggtt->stolen_reserved_size = reserved_size;
+	dev_priv->dsm_reserved = reserved;
 
 	/* It is possible for the reserved area to end before the end of stolen
 	 * memory, so just consider the start. */
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 872d15f599d1..a07b7b456b50 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6439,7 +6439,6 @@ static void intel_print_rc6_info(struct drm_i915_private *dev_priv, u32 mode)
 
 static bool bxt_check_bios_rc6_setup(struct drm_i915_private *dev_priv)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	bool enable_rc6 = true;
 	unsigned long rc6_ctx_base;
 	u32 rc_ctl;
@@ -6464,9 +6463,8 @@ static bool bxt_check_bios_rc6_setup(struct drm_i915_private *dev_priv)
 	 * for this check.
 	 */
 	rc6_ctx_base = I915_READ(RC6_CTX_BASE) & RC6_CTX_BASE_MASK;
-	if (!((rc6_ctx_base >= ggtt->stolen_reserved_base) &&
-	      (rc6_ctx_base + PAGE_SIZE <= ggtt->stolen_reserved_base +
-					ggtt->stolen_reserved_size))) {
+	if (!((rc6_ctx_base >= dev_priv->dsm_reserved.start) &&
+	      (rc6_ctx_base + PAGE_SIZE < dev_priv->dsm_reserved.end))) {
 		DRM_DEBUG_DRIVER("RC6 Base address not as expected.\n");
 		enable_rc6 = false;
 	}
-- 
2.14.3

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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 7/8] drm/i915: make mappable struct resource centric
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (5 preceding siblings ...)
  2017-11-24 16:42 ` [PATCH 6/8] drm/i915: make reserved " Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:42 ` [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen Matthew Auld
                   ` (2 subsequent siblings)
  9 siblings, 0 replies; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: Paulo Zanoni

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/gvt/gvt.h                |  2 +-
 drivers/gpu/drm/i915/i915_drv.c               |  2 +-
 drivers/gpu/drm/i915/i915_gem.c               |  8 ++++----
 drivers/gpu/drm/i915/i915_gem_execbuffer.c    |  2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 28 ++++++++++++++++-----------
 drivers/gpu/drm/i915/i915_gem_gtt.h           |  4 ++--
 drivers/gpu/drm/i915/i915_gpu_error.c         |  2 +-
 drivers/gpu/drm/i915/i915_vma.c               |  2 +-
 drivers/gpu/drm/i915/intel_display.c          |  2 +-
 drivers/gpu/drm/i915/intel_overlay.c          |  4 ++--
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |  4 ++--
 drivers/gpu/drm/i915/selftests/mock_gtt.c     |  3 ++-
 12 files changed, 35 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 028d00e61bad..601e5fee8957 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -336,7 +336,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt);
 
 /* Aperture/GM space definitions for GVT device */
 #define gvt_aperture_sz(gvt)	  (gvt->dev_priv->ggtt.mappable_size)
-#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
+#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable.start)
 
 #define gvt_ggtt_gm_sz(gvt)	  (gvt->dev_priv->ggtt.base.total)
 #define gvt_ggtt_sz(gvt) \
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index e1bb0c8822aa..be29895a56f6 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -728,7 +728,7 @@ static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
 	if (!ap)
 		return -ENOMEM;
 
-	ap->ranges[0].base = ggtt->mappable_base;
+	ap->ranges[0].base = ggtt->mappable.start;
 	ap->ranges[0].size = ggtt->mappable_size;
 
 	primary =
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 05cc4f2df1bf..48c5a005a4b6 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1106,7 +1106,7 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
 			page_base += offset & PAGE_MASK;
 		}
 
-		if (gtt_user_read(&ggtt->mappable, page_base, page_offset,
+		if (gtt_user_read(&ggtt->mappable_io, page_base, page_offset,
 				  user_data, page_length)) {
 			ret = -EFAULT;
 			break;
@@ -1314,7 +1314,7 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
 		 * If the object is non-shmem backed, we retry again with the
 		 * path that handles page fault.
 		 */
-		if (ggtt_write(&ggtt->mappable, page_base, page_offset,
+		if (ggtt_write(&ggtt->mappable_io, page_base, page_offset,
 			       user_data, page_length)) {
 			ret = -EFAULT;
 			break;
@@ -1960,9 +1960,9 @@ int i915_gem_fault(struct vm_fault *vmf)
 	/* Finally, remap it using the new GTT offset */
 	ret = remap_io_mapping(area,
 			       area->vm_start + (vma->ggtt_view.partial.offset << PAGE_SHIFT),
-			       (ggtt->mappable_base + vma->node.start) >> PAGE_SHIFT,
+			       (ggtt->mappable.start + vma->node.start) >> PAGE_SHIFT,
 			       min_t(u64, vma->size, area->vm_end - area->vm_start),
-			       &ggtt->mappable);
+			       &ggtt->mappable_io);
 	if (ret)
 		goto err_fence;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 8224abbb0f2d..da4db769e1e2 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1012,7 +1012,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
 		offset += page << PAGE_SHIFT;
 	}
 
-	vaddr = (void __force *)io_mapping_map_atomic_wc(&ggtt->mappable,
+	vaddr = (void __force *)io_mapping_map_atomic_wc(&ggtt->mappable_io,
 							 offset);
 	cache->page = page;
 	cache->vaddr = (unsigned long)vaddr;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 94faeaebf0d0..35d91cf07123 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2912,7 +2912,7 @@ void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv)
 	mutex_unlock(&dev_priv->drm.struct_mutex);
 
 	arch_phys_wc_del(ggtt->mtrr);
-	io_mapping_fini(&ggtt->mappable);
+	io_mapping_fini(&ggtt->mappable_io);
 }
 
 static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl)
@@ -3288,8 +3288,9 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
 	int err;
 
 	/* TODO: We're not aware of mappable constraints on gen8 yet */
-	ggtt->mappable_base = pci_resource_start(pdev, 2);
-	ggtt->mappable_size = pci_resource_len(pdev, 2);
+	ggtt->mappable.start = pci_resource_start(pdev, 2);
+	ggtt->mappable.end = ggtt->mappable.start + pci_resource_len(pdev, 2) - 1;
+	ggtt->mappable_size = resource_size(&ggtt->mappable);
 
 	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(39));
 	if (!err)
@@ -3345,8 +3346,9 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
 	u16 snb_gmch_ctl;
 	int err;
 
-	ggtt->mappable_base = pci_resource_start(pdev, 2);
-	ggtt->mappable_size = pci_resource_len(pdev, 2);
+	ggtt->mappable.start = pci_resource_start(pdev, 2);
+	ggtt->mappable.end = ggtt->mappable.start + pci_resource_len(pdev, 2) - 1;
+	ggtt->mappable_size = resource_size(&ggtt->mappable);
 
 	/* 64/512MB is the current min/max we actually know of, but this is just
 	 * a coarse sanity check.
@@ -3401,6 +3403,7 @@ static void i915_gmch_remove(struct i915_address_space *vm)
 static int i915_gmch_probe(struct i915_ggtt *ggtt)
 {
 	struct drm_i915_private *dev_priv = ggtt->base.i915;
+	phys_addr_t mappable_base;
 	int ret;
 
 	ret = intel_gmch_probe(dev_priv->bridge_dev, dev_priv->drm.pdev, NULL);
@@ -3411,9 +3414,12 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
 
 	intel_gtt_get(&ggtt->base.total,
 		      &ggtt->stolen_size,
-		      &ggtt->mappable_base,
+		      &mappable_base,
 		      &ggtt->mappable_size);
 
+	ggtt->mappable.start = mappable_base;
+	ggtt->mappable.end = ggtt->mappable.start + ggtt->mappable_size - 1;
+
 	ggtt->do_idle_maps = needs_idle_maps(dev_priv);
 	ggtt->base.insert_page = i915_ggtt_insert_page;
 	ggtt->base.insert_entries = i915_ggtt_insert_entries;
@@ -3481,8 +3487,8 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 	/* GMADR is the PCI mmio aperture into the global GTT. */
 	DRM_INFO("Memory usable by graphics device = %lluM\n",
 		 ggtt->base.total >> 20);
-	DRM_DEBUG_DRIVER("GMADR size = %lldM\n", ggtt->mappable_size >> 20);
-	DRM_DEBUG_DRIVER("GTT stolen size = %uM\n", ggtt->stolen_size >> 20);
+	DRM_DEBUG_DRIVER("GMADR size = %lluM\n", (u64)ggtt->mappable_size >> 20);
+	DRM_DEBUG_DRIVER("GTT stolen size = %lluM\n", (u64)ggtt->stolen_size >> 20);
 	if (intel_vtd_active())
 		DRM_INFO("VT-d active for gfx access\n");
 
@@ -3511,14 +3517,14 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
 		ggtt->base.mm.color_adjust = i915_gtt_color_adjust;
 	mutex_unlock(&dev_priv->drm.struct_mutex);
 
-	if (!io_mapping_init_wc(&dev_priv->ggtt.mappable,
-				dev_priv->ggtt.mappable_base,
+	if (!io_mapping_init_wc(&dev_priv->ggtt.mappable_io,
+				dev_priv->ggtt.mappable.start,
 				dev_priv->ggtt.mappable_size)) {
 		ret = -EIO;
 		goto out_gtt_cleanup;
 	}
 
-	ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, ggtt->mappable_size);
+	ggtt->mtrr = arch_phys_wc_add(ggtt->mappable.start, ggtt->mappable_size);
 
 	/*
 	 * Initialise stolen early so that we may reserve preallocated
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 6eb34fd2c4ba..a91281a55b91 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -368,9 +368,9 @@ i915_vm_has_scratch_64K(struct i915_address_space *vm)
  */
 struct i915_ggtt {
 	struct i915_address_space base;
-	struct io_mapping mappable;	/* Mapping to our CPU mappable region */
 
-	phys_addr_t mappable_base;	/* PA of our GMADR */
+	struct io_mapping mappable_io;	/* Mapping to our CPU mappable region */
+	struct resource mappable;       /* GMADR resource */
 	u64 mappable_size;		/* Total mappable size that we can CPU map */
 
 	/* Stolen memory is segmented in hardware with different portions
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 3d18d67d065f..95e76786f4d8 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -953,7 +953,7 @@ i915_error_object_create(struct drm_i915_private *i915,
 		ggtt->base.insert_page(&ggtt->base, dma, slot,
 				       I915_CACHE_NONE, 0);
 
-		s = io_mapping_map_atomic_wc(&ggtt->mappable, slot);
+		s = io_mapping_map_atomic_wc(&ggtt->mappable_io, slot);
 		ret = compress_page(&compress, (void  __force *)s, dst);
 		io_mapping_unmap_atomic(s);
 
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index a9413b601230..e4f080ebdebb 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -305,7 +305,7 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
 
 	ptr = vma->iomap;
 	if (ptr == NULL) {
-		ptr = io_mapping_map_wc(&i915_vm_to_ggtt(vma->vm)->mappable,
+		ptr = io_mapping_map_wc(&i915_vm_to_ggtt(vma->vm)->mappable_io,
 					vma->node.start,
 					vma->node.size);
 		if (ptr == NULL) {
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d67c7c498b34..1d231c5f9ee9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14592,7 +14592,7 @@ int intel_modeset_init(struct drm_device *dev)
 		dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT;
 	}
 
-	dev->mode_config.fb_base = ggtt->mappable_base;
+	dev->mode_config.fb_base = ggtt->mappable.start;
 
 	DRM_DEBUG_KMS("%d display pipe%s available.\n",
 		      INTEL_INFO(dev_priv)->num_pipes,
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 1b397b41cb4f..d3d3aa147695 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -219,7 +219,7 @@ intel_overlay_map_regs(struct intel_overlay *overlay)
 	if (OVERLAY_NEEDS_PHYSICAL(dev_priv))
 		regs = (struct overlay_registers __iomem *)overlay->reg_bo->phys_handle->vaddr;
 	else
-		regs = io_mapping_map_wc(&dev_priv->ggtt.mappable,
+		regs = io_mapping_map_wc(&dev_priv->ggtt.mappable_io,
 					 overlay->flip_addr,
 					 PAGE_SIZE);
 
@@ -1508,7 +1508,7 @@ intel_overlay_map_regs_atomic(struct intel_overlay *overlay)
 		regs = (struct overlay_registers __iomem *)
 			overlay->reg_bo->phys_handle->vaddr;
 	else
-		regs = io_mapping_map_atomic_wc(&dev_priv->ggtt.mappable,
+		regs = io_mapping_map_atomic_wc(&dev_priv->ggtt.mappable_io,
 						overlay->flip_addr);
 
 	return regs;
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index e97ae4b4a684..82f8e745842b 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1074,7 +1074,7 @@ static int igt_ggtt_page(void *arg)
 				       i915_gem_object_get_dma_address(obj, 0),
 				       offset, I915_CACHE_NONE, 0);
 
-		vaddr = io_mapping_map_atomic_wc(&ggtt->mappable, offset);
+		vaddr = io_mapping_map_atomic_wc(&ggtt->mappable_io, offset);
 		iowrite32(n, vaddr + n);
 		io_mapping_unmap_atomic(vaddr);
 
@@ -1092,7 +1092,7 @@ static int igt_ggtt_page(void *arg)
 				       i915_gem_object_get_dma_address(obj, 0),
 				       offset, I915_CACHE_NONE, 0);
 
-		vaddr = io_mapping_map_atomic_wc(&ggtt->mappable, offset);
+		vaddr = io_mapping_map_atomic_wc(&ggtt->mappable_io, offset);
 		val = ioread32(vaddr + n);
 		io_mapping_unmap_atomic(vaddr);
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c
index d3155f36de89..61e50eea38f4 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c
@@ -110,8 +110,9 @@ void mock_init_ggtt(struct drm_i915_private *i915)
 
 	ggtt->base.i915 = i915;
 
-	ggtt->mappable_base = 0;
+	ggtt->mappable.start = 0;
 	ggtt->mappable_size = 2048 * PAGE_SIZE;
+	ggtt->mappable.end = ggtt->mappable_size - 1;
 	ggtt->base.total = 4096 * PAGE_SIZE;
 
 	ggtt->base.clear_range = nop_clear_range;
-- 
2.14.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (6 preceding siblings ...)
  2017-11-24 16:42 ` [PATCH 7/8] drm/i915: make mappable " Matthew Auld
@ 2017-11-24 16:42 ` Matthew Auld
  2017-11-24 16:54   ` Chris Wilson
  2017-11-24 17:02 ` ✓ Fi.CI.BAT: success for make stolen resource centric (rev2) Patchwork
  2017-11-24 19:29 ` ✗ Fi.CI.IGT: failure " Patchwork
  9 siblings, 1 reply; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 16:42 UTC (permalink / raw)
  To: intel-gfx; +Cc: Paulo Zanoni

Keeps things consistent now that we make use of struct resource. This
should keep us covered in case we ever get huge amounts of stolen
memory.

v2: bunch of missing conversions (Chris)

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/char/agp/intel-gtt.c           | 14 +++++-----
 drivers/gpu/drm/i915/i915_debugfs.c    |  2 +-
 drivers/gpu/drm/i915/i915_drv.h        |  9 +++---
 drivers/gpu/drm/i915/i915_gem_gtt.c    | 10 +++----
 drivers/gpu/drm/i915/i915_gem_gtt.h    |  6 ++--
 drivers/gpu/drm/i915/i915_gem_stolen.c | 51 +++++++++++++++++-----------------
 drivers/gpu/drm/i915/intel_pm.c        | 10 +++----
 include/drm/intel-gtt.h                |  4 +--
 8 files changed, 54 insertions(+), 52 deletions(-)

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 2a321ee2943a..312c4cc440bc 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -80,7 +80,7 @@ static struct _intel_private {
 	unsigned int needs_dmar : 1;
 	phys_addr_t gma_bus_addr;
 	/*  Size of memory reserved for graphics by the BIOS */
-	unsigned int stolen_size;
+	resource_size_t stolen_size;
 	/* Total number of gtt entries. */
 	unsigned int gtt_total_entries;
 	/* Part of the gtt that is mappable by the cpu, for those chips where
@@ -333,13 +333,13 @@ static void i810_write_entry(dma_addr_t addr, unsigned int entry,
 	writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
 }
 
-static unsigned int intel_gtt_stolen_size(void)
+static resource_size_t intel_gtt_stolen_size(void)
 {
 	u16 gmch_ctrl;
 	u8 rdct;
 	int local = 0;
 	static const int ddt[4] = { 0, 16, 32, 64 };
-	unsigned int stolen_size = 0;
+	resource_size_t stolen_size = 0;
 
 	if (INTEL_GTT_GEN == 1)
 		return 0; /* no stolen mem on i81x */
@@ -417,8 +417,8 @@ static unsigned int intel_gtt_stolen_size(void)
 	}
 
 	if (stolen_size > 0) {
-		dev_info(&intel_private.bridge_dev->dev, "detected %dK %s memory\n",
-		       stolen_size / KB(1), local ? "local" : "stolen");
+		dev_info(&intel_private.bridge_dev->dev, "detected %lluK %s memory\n",
+		       (u64)stolen_size / KB(1), local ? "local" : "stolen");
 	} else {
 		dev_info(&intel_private.bridge_dev->dev,
 		       "no pre-allocated video memory detected\n");
@@ -1422,9 +1422,9 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 EXPORT_SYMBOL(intel_gmch_probe);
 
 void intel_gtt_get(u64 *gtt_total,
-		   u32 *stolen_size,
+		   resource_size_t *stolen_size,
 		   phys_addr_t *mappable_base,
-		   u64 *mappable_size)
+		   resource_size_t *mappable_size)
 {
 	*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
 	*stolen_size = intel_private.stolen_size;
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index a05e2b92c02c..248d18a255d8 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -523,7 +523,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
 		   dpy_count, dpy_size);
 
 	seq_printf(m, "%llu [%llu] gtt total\n",
-		   ggtt->base.total, ggtt->mappable_size);
+		   ggtt->base.total, (u64)ggtt->mappable_size);
 	seq_printf(m, "Supported page sizes: %s\n",
 		   stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
 					buf, sizeof(buf)));
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e30a8a7812ba..eedffb941f9d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3908,12 +3908,13 @@ void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
 int i915_gem_init_stolen(struct drm_i915_private *dev_priv);
 void i915_gem_cleanup_stolen(struct drm_device *dev);
 struct drm_i915_gem_object *
-i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, u32 size);
+i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
+			      resource_size_t size);
 struct drm_i915_gem_object *
 i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv,
-					       u32 stolen_offset,
-					       u32 gtt_offset,
-					       u32 size);
+					       resource_size_t stolen_offset,
+					       resource_size_t gtt_offset,
+					       resource_size_t size);
 
 /* i915_gem_internal.c */
 struct drm_i915_gem_object *
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 35d91cf07123..390de1c74329 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3354,7 +3354,7 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
 	 * a coarse sanity check.
 	 */
 	if (ggtt->mappable_size < (64<<20) || ggtt->mappable_size > (512<<20)) {
-		DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_size);
+		DRM_ERROR("Unknown GMADR size (%pa)\n", &ggtt->mappable_size);
 		return -ENXIO;
 	}
 
@@ -3466,7 +3466,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 	 */
 	if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading) {
 		ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP);
-		ggtt->mappable_size = min(ggtt->mappable_size, ggtt->base.total);
+		ggtt->mappable_size = min_t(u64, ggtt->mappable_size, ggtt->base.total);
 	}
 
 	if ((ggtt->base.total - 1) >> 32) {
@@ -3474,13 +3474,13 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 			  " of address space! Found %lldM!\n",
 			  ggtt->base.total >> 20);
 		ggtt->base.total = 1ULL << 32;
-		ggtt->mappable_size = min(ggtt->mappable_size, ggtt->base.total);
+		ggtt->mappable_size = min_t(u64, ggtt->mappable_size, ggtt->base.total);
 	}
 
 	if (ggtt->mappable_size > ggtt->base.total) {
 		DRM_ERROR("mappable aperture extends past end of GGTT,"
-			  " aperture=%llx, total=%llx\n",
-			  ggtt->mappable_size, ggtt->base.total);
+			  " aperture=%pa, total=%llx\n",
+			  &ggtt->mappable_size, ggtt->base.total);
 		ggtt->mappable_size = ggtt->base.total;
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index a91281a55b91..6f7c640885ed 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -371,7 +371,7 @@ struct i915_ggtt {
 
 	struct io_mapping mappable_io;	/* Mapping to our CPU mappable region */
 	struct resource mappable;       /* GMADR resource */
-	u64 mappable_size;		/* Total mappable size that we can CPU map */
+	resource_size_t mappable_size;	/* Total mappable size that we can CPU map */
 
 	/* Stolen memory is segmented in hardware with different portions
 	 * offlimits to certain functions.
@@ -381,8 +381,8 @@ struct i915_ggtt {
 	 * avoid the first page! The upper end of stolen memory is reserved for
 	 * hardware functions and similarly removed from the accessible range.
 	 */
-	u32 stolen_size;		/* Total size of stolen memory */
-	u32 stolen_usable_size;	/* Total size minus reserved ranges */
+	resource_size_t stolen_size;		/* Total size of stolen memory */
+	resource_size_t stolen_usable_size;	/* Total size minus reserved ranges */
 
 	/** "Graphics Stolen Memory" holds the global PTEs */
 	void __iomem *gsm;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 2b7af60dfce0..fca56ec9913d 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -76,10 +76,10 @@ void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
 	mutex_unlock(&dev_priv->mm.stolen_lock);
 }
 
-static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
+static resource_size_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
-	dma_addr_t base = intel_graphics_stolen_res.start;
+	resource_size_t base = intel_graphics_stolen_res.start;
 	struct resource *r;
 
 	if (base == 0 || add_overflows(base, ggtt->stolen_size))
@@ -89,7 +89,7 @@ static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
 	if (INTEL_GEN(dev_priv) <= 4 &&
 	    !IS_G33(dev_priv) && !IS_PINEVIEW(dev_priv) && !IS_G4X(dev_priv)) {
 		struct {
-			dma_addr_t start, end;
+			resource_size_t start, end;
 		} stolen[2] = {
 			{ .start = base, .end = base + ggtt->stolen_size, },
 			{ .start = base, .end = base + ggtt->stolen_size, },
@@ -121,7 +121,7 @@ static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
 
 		if (stolen[0].start != stolen[1].start ||
 		    stolen[0].end != stolen[1].end) {
-			dma_addr_t end = base + ggtt->stolen_size - 1;
+			resource_size_t end = base + ggtt->stolen_size - 1;
 
 			DRM_DEBUG_KMS("GTT within stolen memory at 0x%llx-0x%llx\n",
 				      (unsigned long long)ggtt_start,
@@ -157,7 +157,7 @@ static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv)
 		 * range. Apparently this works.
 		 */
 		if (r == NULL && !IS_GEN3(dev_priv)) {
-			dma_addr_t end = base + ggtt->stolen_size;
+			resource_size_t end = base + ggtt->stolen_size;
 
 			DRM_ERROR("conflict detected with stolen region: [%pad - %pad]\n",
 				  &base, &end);
@@ -179,13 +179,13 @@ void i915_gem_cleanup_stolen(struct drm_device *dev)
 }
 
 static void g4x_get_stolen_reserved(struct drm_i915_private *dev_priv,
-				    dma_addr_t *base, u32 *size)
+				    resource_size_t *base, resource_size_t *size)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	uint32_t reg_val = I915_READ(IS_GM45(dev_priv) ?
 				     CTG_STOLEN_RESERVED :
 				     ELK_STOLEN_RESERVED);
-	dma_addr_t stolen_top = dev_priv->dsm.start + ggtt->stolen_size;
+	resource_size_t stolen_top = dev_priv->dsm.start + ggtt->stolen_size;
 
 	if ((reg_val & G4X_STOLEN_RESERVED_ENABLE) == 0) {
 		*base = 0;
@@ -214,7 +214,7 @@ static void g4x_get_stolen_reserved(struct drm_i915_private *dev_priv,
 }
 
 static void gen6_get_stolen_reserved(struct drm_i915_private *dev_priv,
-				     dma_addr_t *base, u32 *size)
+				     resource_size_t *base, resource_size_t *size)
 {
 	uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
 
@@ -246,7 +246,7 @@ static void gen6_get_stolen_reserved(struct drm_i915_private *dev_priv,
 }
 
 static void gen7_get_stolen_reserved(struct drm_i915_private *dev_priv,
-				     dma_addr_t *base, u32 *size)
+				     resource_size_t *base, resource_size_t *size)
 {
 	uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
 
@@ -272,7 +272,7 @@ static void gen7_get_stolen_reserved(struct drm_i915_private *dev_priv,
 }
 
 static void chv_get_stolen_reserved(struct drm_i915_private *dev_priv,
-				    dma_addr_t *base, u32 *size)
+				    resource_size_t *base, resource_size_t *size)
 {
 	uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
 
@@ -304,11 +304,11 @@ static void chv_get_stolen_reserved(struct drm_i915_private *dev_priv,
 }
 
 static void bdw_get_stolen_reserved(struct drm_i915_private *dev_priv,
-				    dma_addr_t *base, u32 *size)
+				    resource_size_t *base, resource_size_t *size)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	uint32_t reg_val = I915_READ(GEN6_STOLEN_RESERVED);
-	dma_addr_t stolen_top;
+	resource_size_t stolen_top;
 
 	if ((reg_val & GEN6_STOLEN_RESERVED_ENABLE) == 0) {
 		*base = 0;
@@ -334,9 +334,9 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	struct resource reserved = DEFINE_RES_MEM(0, 0);
-	dma_addr_t reserved_base, stolen_top;
-	u32 reserved_total, reserved_size;
-	u32 stolen_usable_start;
+	resource_size_t reserved_base, stolen_top;
+	resource_size_t reserved_total, reserved_size;
+	resource_size_t stolen_usable_start;
 
 	mutex_init(&dev_priv->mm.stolen_lock);
 
@@ -416,9 +416,9 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 	 * memory, so just consider the start. */
 	reserved_total = stolen_top - reserved_base;
 
-	DRM_DEBUG_KMS("Memory reserved for graphics device: %uK, usable: %uK\n",
-		      ggtt->stolen_size >> 10,
-		      (ggtt->stolen_size - reserved_total) >> 10);
+	DRM_DEBUG_KMS("Memory reserved for graphics device: %lluK, usable: %lluK\n",
+		      (u64)ggtt->stolen_size >> 10,
+		      (u64)(ggtt->stolen_size - reserved_total) >> 10);
 
 	stolen_usable_start = 0;
 	/* WaSkipStolenMemoryFirstPage:bdw+ */
@@ -437,7 +437,7 @@ int i915_gem_init_stolen(struct drm_i915_private *dev_priv)
 
 static struct sg_table *
 i915_pages_create_for_stolen(struct drm_device *dev,
-			     u32 offset, u32 size)
+			     resource_size_t offset, resource_size_t size)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct sg_table *st;
@@ -541,7 +541,8 @@ _i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
 }
 
 struct drm_i915_gem_object *
-i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, u32 size)
+i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
+			      resource_size_t size)
 {
 	struct drm_i915_gem_object *obj;
 	struct drm_mm_node *stolen;
@@ -574,9 +575,9 @@ i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, u32 size)
 
 struct drm_i915_gem_object *
 i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv,
-					       u32 stolen_offset,
-					       u32 gtt_offset,
-					       u32 size)
+					       resource_size_t stolen_offset,
+					       resource_size_t gtt_offset,
+					       resource_size_t size)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	struct drm_i915_gem_object *obj;
@@ -589,8 +590,8 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv
 
 	lockdep_assert_held(&dev_priv->drm.struct_mutex);
 
-	DRM_DEBUG_KMS("creating preallocated stolen object: stolen_offset=%x, gtt_offset=%x, size=%x\n",
-			stolen_offset, gtt_offset, size);
+	DRM_DEBUG_KMS("creating preallocated stolen object: stolen_offset=%pa, gtt_offset=%pa, size=%pa\n",
+			&stolen_offset, &gtt_offset, &size);
 
 	/* KISS and expect everything to be page-aligned */
 	if (WARN_ON(size == 0) ||
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a07b7b456b50..e2ece838e356 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7084,9 +7084,9 @@ static void cherryview_check_pctx(struct drm_i915_private *dev_priv)
 static void cherryview_setup_pctx(struct drm_i915_private *dev_priv)
 {
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
-	unsigned long pctx_paddr, paddr;
+	resource_size_t pctx_paddr, paddr;
+	resource_size_t pctx_size = 32*1024;
 	u32 pcbr;
-	int pctx_size = 32*1024;
 
 	pcbr = I915_READ(VLV_PCBR);
 	if ((pcbr >> VLV_PCBR_ADDR_SHIFT) == 0) {
@@ -7109,14 +7109,14 @@ static void cherryview_setup_pctx(struct drm_i915_private *dev_priv)
 static void valleyview_setup_pctx(struct drm_i915_private *dev_priv)
 {
 	struct drm_i915_gem_object *pctx;
-	unsigned long pctx_paddr;
+	resource_size_t pctx_paddr;
+	resource_size_t pctx_size = 24*1024;
 	u32 pcbr;
-	int pctx_size = 24*1024;
 
 	pcbr = I915_READ(VLV_PCBR);
 	if (pcbr) {
 		/* BIOS set it up already, grab the pre-alloc'd space */
-		int pcbr_offset;
+		resource_size_t pcbr_offset;
 
 		pcbr_offset = (pcbr & (~4095)) - dev_priv->dsm.start;
 		pctx = i915_gem_object_create_stolen_for_preallocated(dev_priv,
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index e901de0b6dd8..71505a5e376d 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -5,9 +5,9 @@
 #define	_DRM_INTEL_GTT_H
 
 void intel_gtt_get(u64 *gtt_total,
-		   u32 *stolen_size,
+		   resource_size_t *stolen_size,
 		   phys_addr_t *mappable_base,
-		   u64 *mappable_size);
+		   resource_size_t *mappable_size);
 
 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 		     struct agp_bridge_data *bridge);
-- 
2.14.3

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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 17+ messages in thread

* Re: [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen
  2017-11-24 16:42 ` [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen Matthew Auld
@ 2017-11-24 16:54   ` Chris Wilson
  2017-11-24 17:56     ` Matthew Auld
  0 siblings, 1 reply; 17+ messages in thread
From: Chris Wilson @ 2017-11-24 16:54 UTC (permalink / raw)
  To: Matthew Auld, intel-gfx; +Cc: Paulo Zanoni

Quoting Matthew Auld (2017-11-24 16:42:57)
> Keeps things consistent now that we make use of struct resource. This
> should keep us covered in case we ever get huge amounts of stolen
> memory.
> 
> v2: bunch of missing conversions (Chris)
> 
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> ---
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index a05e2b92c02c..248d18a255d8 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -523,7 +523,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
>                    dpy_count, dpy_size);
>  
>         seq_printf(m, "%llu [%llu] gtt total\n",
> -                  ggtt->base.total, ggtt->mappable_size);
> +                  ggtt->base.total, (u64)ggtt->mappable_size);

resource_size_t uses %pa (same as phys_addr_t), which you used below.
Did it not work with seq_printf?
-Chris

> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 35d91cf07123..390de1c74329 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -3354,7 +3354,7 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
>          * a coarse sanity check.
>          */
>         if (ggtt->mappable_size < (64<<20) || ggtt->mappable_size > (512<<20)) {
> -               DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_size);
> +               DRM_ERROR("Unknown GMADR size (%pa)\n", &ggtt->mappable_size);
>                 return -ENXIO;
>         }
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* ✓ Fi.CI.BAT: success for make stolen resource centric (rev2)
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (7 preceding siblings ...)
  2017-11-24 16:42 ` [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen Matthew Auld
@ 2017-11-24 17:02 ` Patchwork
  2017-11-24 19:29 ` ✗ Fi.CI.IGT: failure " Patchwork
  9 siblings, 0 replies; 17+ messages in thread
From: Patchwork @ 2017-11-24 17:02 UTC (permalink / raw)
  To: Matthew Auld; +Cc: intel-gfx

== Series Details ==

Series: make stolen resource centric (rev2)
URL   : https://patchwork.freedesktop.org/series/34256/
State : success

== Summary ==

Series 34256v2 make stolen resource centric
https://patchwork.freedesktop.org/api/1.0/series/34256/revisions/2/mbox/

fi-bdw-5557u     total:289  pass:268  dwarn:0   dfail:0   fail:0   skip:21  time:442s
fi-bdw-gvtdvm    total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:455s
fi-blb-e6850     total:289  pass:223  dwarn:1   dfail:0   fail:0   skip:65  time:382s
fi-bsw-n3050     total:289  pass:243  dwarn:0   dfail:0   fail:0   skip:46  time:533s
fi-bwr-2160      total:289  pass:183  dwarn:0   dfail:0   fail:0   skip:106 time:276s
fi-bxt-dsi       total:289  pass:259  dwarn:0   dfail:0   fail:0   skip:30  time:504s
fi-bxt-j4205     total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:511s
fi-byt-j1900     total:289  pass:254  dwarn:0   dfail:0   fail:0   skip:35  time:501s
fi-byt-n2820     total:289  pass:250  dwarn:0   dfail:0   fail:0   skip:39  time:490s
fi-elk-e7500     total:289  pass:229  dwarn:0   dfail:0   fail:0   skip:60  time:430s
fi-gdg-551       total:289  pass:178  dwarn:1   dfail:0   fail:1   skip:109 time:266s
fi-glk-1         total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:542s
fi-hsw-4770      total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:425s
fi-hsw-4770r     total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:442s
fi-ilk-650       total:289  pass:228  dwarn:0   dfail:0   fail:0   skip:61  time:429s
fi-ivb-3520m     total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:485s
fi-ivb-3770      total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:461s
fi-kbl-7500u     total:289  pass:264  dwarn:1   dfail:0   fail:0   skip:24  time:482s
fi-kbl-7560u     total:289  pass:270  dwarn:0   dfail:0   fail:0   skip:19  time:527s
fi-kbl-7567u     total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:472s
fi-kbl-r         total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:535s
fi-pnv-d510      total:289  pass:222  dwarn:1   dfail:0   fail:0   skip:66  time:569s
fi-skl-6260u     total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:465s
fi-skl-6600u     total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:540s
fi-skl-6700hq    total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:564s
fi-skl-6700k     total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:521s
fi-skl-6770hq    total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:497s
fi-skl-gvtdvm    total:289  pass:266  dwarn:0   dfail:0   fail:0   skip:23  time:457s
fi-snb-2520m     total:289  pass:250  dwarn:0   dfail:0   fail:0   skip:39  time:554s
fi-snb-2600      total:289  pass:249  dwarn:0   dfail:0   fail:0   skip:40  time:419s
Blacklisted hosts:
fi-cfl-s2        total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:605s
fi-cnl-y         total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:547s
fi-glk-dsi       total:289  pass:259  dwarn:0   dfail:0   fail:0   skip:30  time:496s

2cc63d7f56b7d8c9287a431773b3fec01b53e5cb drm-tip: 2017y-11m-24d-16h-04m-11s UTC integration manifest
cb677cdb2272 drm/i915: prefer resource_size_t for everything stolen
a7238c8fd709 drm/i915: make mappable struct resource centric
27e73fbf543f drm/i915: make reserved struct resource centric
1f90b9ab4ed0 drm/i915: make dsm struct resource centric
1dc9173fac06 drm/i915: s/mappable_end/mappable_size/
1b4a59faddbd drm/i915: nuke the duplicated stolen discovery
32992386a7dc x86/early-quirks: replace the magical increment start values
ef8723396370 x86/early-quirks: Extend Intel graphics stolen memory placement to 64bit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7283/
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 2/8] x86/early-quirks: replace the magical increment start values
  2017-11-24 16:42 ` [PATCH 2/8] x86/early-quirks: replace the magical increment start values Matthew Auld
@ 2017-11-24 17:06   ` Ville Syrjälä
  0 siblings, 0 replies; 17+ messages in thread
From: Ville Syrjälä @ 2017-11-24 17:06 UTC (permalink / raw)
  To: Matthew Auld; +Cc: x86, Paulo Zanoni, intel-gfx, H . Peter Anvin, Ingo Molnar

On Fri, Nov 24, 2017 at 04:42:51PM +0000, Matthew Auld wrote:
> Replace the magical +2, +9 etc. with +MB, which is far easier to read.
> 
> Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: x86@kernel.org
> ---
>  arch/x86/kernel/early-quirks.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
> index 3116f579841a..3bc1e49d6c41 100644
> --- a/arch/x86/kernel/early-quirks.c
> +++ b/arch/x86/kernel/early-quirks.c
> @@ -428,9 +428,9 @@ static resource_size_t __init chv_stolen_size(int num, int slot, int func)
>  	if (gms < 0x11)
>  		return gms * MB(32);
>  	else if (gms < 0x17)
> -		return (gms - 0x11 + 2) * MB(4);
> +		return (gms - 0x11) * MB(4) + MB(8);
>  	else
> -		return (gms - 0x17 + 9) * MB(4);
> +		return (gms - 0x17) * MB(4) + MB(36);

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

But now I'm thinking we should also reverse the if ladders...

if (gms >= 0x17)
	return (gms - 0x17) * ...;
else if (gms >= 0x11)
	return (gms - 0x11) * ...;
else
	return gms * ...;

Better? I think so.

>  }
>  
>  static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
> @@ -446,7 +446,7 @@ static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
>  	if (gms < 0xf0)
>  		return gms * MB(32);
>  	else
> -		return (gms - 0xf0 + 1) * MB(4);
> +		return (gms - 0xf0) * MB(4) + MB(4);
>  }
>  
>  struct intel_early_ops {
> -- 
> 2.14.3

-- 
Ville Syrjälä
Intel OTC
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen
  2017-11-24 16:54   ` Chris Wilson
@ 2017-11-24 17:56     ` Matthew Auld
  2017-11-24 18:30       ` Chris Wilson
  0 siblings, 1 reply; 17+ messages in thread
From: Matthew Auld @ 2017-11-24 17:56 UTC (permalink / raw)
  To: Chris Wilson; +Cc: Intel Graphics Development, Matthew Auld, Paulo Zanoni

On 24 November 2017 at 16:54, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> Quoting Matthew Auld (2017-11-24 16:42:57)
>> Keeps things consistent now that we make use of struct resource. This
>> should keep us covered in case we ever get huge amounts of stolen
>> memory.
>>
>> v2: bunch of missing conversions (Chris)
>>
>> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
>> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
>> Cc: Chris Wilson <chris@chris-wilson.co.uk>
>> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
>> ---
>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
>> index a05e2b92c02c..248d18a255d8 100644
>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> @@ -523,7 +523,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
>>                    dpy_count, dpy_size);
>>
>>         seq_printf(m, "%llu [%llu] gtt total\n",
>> -                  ggtt->base.total, ggtt->mappable_size);
>> +                  ggtt->base.total, (u64)ggtt->mappable_size);
>
> resource_size_t uses %pa (same as phys_addr_t), which you used below.
> Did it not work with seq_printf?

It does work, I just didn't fancy having a mix of decimal-integers
with hexadecimal-integers when printing. Or don't we care?
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen
  2017-11-24 17:56     ` Matthew Auld
@ 2017-11-24 18:30       ` Chris Wilson
  0 siblings, 0 replies; 17+ messages in thread
From: Chris Wilson @ 2017-11-24 18:30 UTC (permalink / raw)
  To: Matthew Auld; +Cc: Intel Graphics Development, Matthew Auld, Paulo Zanoni

Quoting Matthew Auld (2017-11-24 17:56:34)
> On 24 November 2017 at 16:54, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> > Quoting Matthew Auld (2017-11-24 16:42:57)
> >> Keeps things consistent now that we make use of struct resource. This
> >> should keep us covered in case we ever get huge amounts of stolen
> >> memory.
> >>
> >> v2: bunch of missing conversions (Chris)
> >>
> >> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> >> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> >> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> >> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> >> ---
> >> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> >> index a05e2b92c02c..248d18a255d8 100644
> >> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> >> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> >> @@ -523,7 +523,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
> >>                    dpy_count, dpy_size);
> >>
> >>         seq_printf(m, "%llu [%llu] gtt total\n",
> >> -                  ggtt->base.total, ggtt->mappable_size);
> >> +                  ggtt->base.total, (u64)ggtt->mappable_size);
> >
> > resource_size_t uses %pa (same as phys_addr_t), which you used below.
> > Did it not work with seq_printf?
> 
> It does work, I just didn't fancy having a mix of decimal-integers
> with hexadecimal-integers when printing. Or don't we care?

Don't care that much, go hex.
-Chris
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* ✗ Fi.CI.IGT: failure for make stolen resource centric (rev2)
  2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
                   ` (8 preceding siblings ...)
  2017-11-24 17:02 ` ✓ Fi.CI.BAT: success for make stolen resource centric (rev2) Patchwork
@ 2017-11-24 19:29 ` Patchwork
  9 siblings, 0 replies; 17+ messages in thread
From: Patchwork @ 2017-11-24 19:29 UTC (permalink / raw)
  To: Matthew Auld; +Cc: intel-gfx

== Series Details ==

Series: make stolen resource centric (rev2)
URL   : https://patchwork.freedesktop.org/series/34256/
State : failure

== Summary ==

Test kms_frontbuffer_tracking:
        Subgroup fbc-1p-offscren-pri-shrfb-draw-blt:
                pass       -> FAIL       (shard-snb) fdo#101623 +1
        Subgroup fbc-1p-primscrn-pri-shrfb-draw-render:
                pass       -> FAIL       (shard-snb)
        Subgroup fbc-rgb101010-draw-mmap-gtt:
                pass       -> SKIP       (shard-hsw)
        Subgroup fbc-1p-primscrn-spr-indfb-draw-mmap-cpu:
                pass       -> SKIP       (shard-hsw) fdo#103167
Test kms_setmode:
        Subgroup basic:
                pass       -> FAIL       (shard-hsw) fdo#99912
Test kms_cursor_legacy:
        Subgroup cursora-vs-flipa-toggle:
                pass       -> SKIP       (shard-hsw)
Test gem_busy:
        Subgroup close-race:
                pass       -> FAIL       (shard-snb) fdo#103829
Test drv_selftest:
        Subgroup mock_sanitycheck:
                pass       -> DMESG-WARN (shard-snb) fdo#103717

fdo#101623 https://bugs.freedesktop.org/show_bug.cgi?id=101623
fdo#103167 https://bugs.freedesktop.org/show_bug.cgi?id=103167
fdo#99912 https://bugs.freedesktop.org/show_bug.cgi?id=99912
fdo#103829 https://bugs.freedesktop.org/show_bug.cgi?id=103829
fdo#103717 https://bugs.freedesktop.org/show_bug.cgi?id=103717

shard-hsw        total:2667 pass:1532 dwarn:1   dfail:0   fail:10  skip:1124 time:9415s
shard-snb        total:2667 pass:1308 dwarn:2   dfail:0   fail:15  skip:1342 time:8023s
Blacklisted hosts:
shard-kbl        total:2667 pass:1804 dwarn:2   dfail:0   fail:25  skip:836 time:10861s

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7283/shards.html
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* [PATCH 2/8] x86/early-quirks: replace the magical increment start values
  2017-12-11 12:14 [PATCH 0/8] make stolen resource centric Matthew Auld
@ 2017-12-11 12:14 ` Matthew Auld
  2017-12-11 14:39   ` Ingo Molnar
  0 siblings, 1 reply; 17+ messages in thread
From: Matthew Auld @ 2017-12-11 12:14 UTC (permalink / raw)
  To: intel-gfx
  Cc: x86, Paulo Zanoni, linux-kernel, H . Peter Anvin, Thomas Gleixner,
	Ingo Molnar

Replace the magical +2, +9 etc. with +MB, which is far easier to read.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 arch/x86/kernel/early-quirks.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 6c1624889011..3cbb2c78a9df 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -428,9 +428,9 @@ static resource_size_t __init chv_stolen_size(int num, int slot, int func)
 	if (gms < 0x11)
 		return gms * MB(32);
 	else if (gms < 0x17)
-		return (gms - 0x11 + 2) * MB(4);
+		return (gms - 0x11) * MB(4) + MB(8);
 	else
-		return (gms - 0x17 + 9) * MB(4);
+		return (gms - 0x17) * MB(4) + MB(36);
 }
 
 static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
@@ -446,7 +446,7 @@ static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
 	if (gms < 0xf0)
 		return gms * MB(32);
 	else
-		return (gms - 0xf0 + 1) * MB(4);
+		return (gms - 0xf0) * MB(4) + MB(4);
 }
 
 struct intel_early_ops {
-- 
2.14.3

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^ permalink raw reply related	[flat|nested] 17+ messages in thread

* Re: [PATCH 2/8] x86/early-quirks: replace the magical increment start values
  2017-12-11 12:14 ` [PATCH 2/8] x86/early-quirks: replace the magical increment start values Matthew Auld
@ 2017-12-11 14:39   ` Ingo Molnar
  0 siblings, 0 replies; 17+ messages in thread
From: Ingo Molnar @ 2017-12-11 14:39 UTC (permalink / raw)
  To: Matthew Auld
  Cc: intel-gfx, Joonas Lahtinen, Ville Syrjälä, Chris Wilson,
	Paulo Zanoni, Thomas Gleixner, H . Peter Anvin, x86, linux-kernel


* Matthew Auld <matthew.auld@intel.com> wrote:

> Replace the magical +2, +9 etc. with +MB, which is far easier to read.
> 
> Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: linux-kernel@vger.kernel.org
> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>  arch/x86/kernel/early-quirks.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
> index 6c1624889011..3cbb2c78a9df 100644
> --- a/arch/x86/kernel/early-quirks.c
> +++ b/arch/x86/kernel/early-quirks.c
> @@ -428,9 +428,9 @@ static resource_size_t __init chv_stolen_size(int num, int slot, int func)
>  	if (gms < 0x11)
>  		return gms * MB(32);
>  	else if (gms < 0x17)
> -		return (gms - 0x11 + 2) * MB(4);
> +		return (gms - 0x11) * MB(4) + MB(8);
>  	else
> -		return (gms - 0x17 + 9) * MB(4);
> +		return (gms - 0x17) * MB(4) + MB(36);
>  }
>  
>  static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
> @@ -446,7 +446,7 @@ static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
>  	if (gms < 0xf0)
>  		return gms * MB(32);
>  	else
> -		return (gms - 0xf0 + 1) * MB(4);
> +		return (gms - 0xf0) * MB(4) + MB(4);

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo

^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2017-12-11 14:39 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-11-24 16:42 [PATCH 0/8] make stolen resource centric Matthew Auld
2017-11-24 16:42 ` [PATCH 1/8] x86/early-quirks: Extend Intel graphics stolen memory placement to 64bit Matthew Auld
2017-11-24 16:42 ` [PATCH 2/8] x86/early-quirks: replace the magical increment start values Matthew Auld
2017-11-24 17:06   ` Ville Syrjälä
2017-11-24 16:42 ` [PATCH 3/8] drm/i915: nuke the duplicated stolen discovery Matthew Auld
2017-11-24 16:42 ` [PATCH 4/8] drm/i915: s/mappable_end/mappable_size/ Matthew Auld
2017-11-24 16:42 ` [PATCH 5/8] drm/i915: make dsm struct resource centric Matthew Auld
2017-11-24 16:42 ` [PATCH 6/8] drm/i915: make reserved " Matthew Auld
2017-11-24 16:42 ` [PATCH 7/8] drm/i915: make mappable " Matthew Auld
2017-11-24 16:42 ` [PATCH 8/8] drm/i915: prefer resource_size_t for everything stolen Matthew Auld
2017-11-24 16:54   ` Chris Wilson
2017-11-24 17:56     ` Matthew Auld
2017-11-24 18:30       ` Chris Wilson
2017-11-24 17:02 ` ✓ Fi.CI.BAT: success for make stolen resource centric (rev2) Patchwork
2017-11-24 19:29 ` ✗ Fi.CI.IGT: failure " Patchwork
  -- strict thread matches above, loose matches on Subject: below --
2017-12-11 12:14 [PATCH 0/8] make stolen resource centric Matthew Auld
2017-12-11 12:14 ` [PATCH 2/8] x86/early-quirks: replace the magical increment start values Matthew Auld
2017-12-11 14:39   ` Ingo Molnar

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