All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Gibson <david@gibson.dropbear.id.au>
To: peter.maydell@linaro.org, groug@kaod.org
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
	David Gibson <david@gibson.dropbear.id.au>
Subject: [PULL 04/13] hw/ppc/ppc405_uc: Drop use of ppcuic_init()
Date: Tue, 19 Jan 2021 17:23:09 +1100	[thread overview]
Message-ID: <20210119062318.13857-5-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20210119062318.13857-1-david@gibson.dropbear.id.au>

From: Peter Maydell <peter.maydell@linaro.org>

Switch the ppc405_uc boards to directly creating and configuring the
UIC, rather than doing it via the old ppcuic_init() helper function.

We retain the API feature of ppc405ep_init() where it passes back
something allowing the callers to wire up devices to the UIC if
they need to, even though neither of the callsites currently makes
use of this ability -- instead of passing back the qemu_irq array
we pass back the UIC DeviceState.

This fixes a trivial Coverity-detected memory leak where
we were leaking the array of IRQs returned by ppcuic_init().

Fixes: Coverity CID 1421922
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210108171212.16500-4-peter.maydell@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/ppc405.h        |  2 +-
 hw/ppc/ppc405_boards.c |  8 ++---
 hw/ppc/ppc405_uc.c     | 70 +++++++++++++++++++++++++-----------------
 3 files changed, 47 insertions(+), 33 deletions(-)

diff --git a/hw/ppc/ppc405.h b/hw/ppc/ppc405.h
index e6c702f7e0..c58f739886 100644
--- a/hw/ppc/ppc405.h
+++ b/hw/ppc/ppc405.h
@@ -66,7 +66,7 @@ CPUPPCState *ppc405ep_init(MemoryRegion *address_space_mem,
                         MemoryRegion ram_memories[2],
                         hwaddr ram_bases[2],
                         hwaddr ram_sizes[2],
-                        uint32_t sysclk, qemu_irq **picp,
+                        uint32_t sysclk, DeviceState **uicdev,
                         int do_init);
 
 #endif /* PPC405_H */
diff --git a/hw/ppc/ppc405_boards.c b/hw/ppc/ppc405_boards.c
index b7249f21cf..8f77887fb1 100644
--- a/hw/ppc/ppc405_boards.c
+++ b/hw/ppc/ppc405_boards.c
@@ -151,7 +151,6 @@ static void ref405ep_init(MachineState *machine)
     CPUPPCState *env;
     DeviceState *dev;
     SysBusDevice *s;
-    qemu_irq *pic;
     MemoryRegion *bios;
     MemoryRegion *sram = g_new(MemoryRegion, 1);
     ram_addr_t bdloc;
@@ -167,6 +166,7 @@ static void ref405ep_init(MachineState *machine)
     int len;
     DriveInfo *dinfo;
     MemoryRegion *sysmem = get_system_memory();
+    DeviceState *uicdev;
 
     if (machine->ram_size != mc->default_ram_size) {
         char *sz = size_to_str(mc->default_ram_size);
@@ -184,7 +184,7 @@ static void ref405ep_init(MachineState *machine)
     ram_bases[1] = 0x00000000;
     ram_sizes[1] = 0x00000000;
     env = ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,
-                        33333333, &pic, kernel_filename == NULL ? 0 : 1);
+                        33333333, &uicdev, kernel_filename == NULL ? 0 : 1);
     /* allocate SRAM */
     sram_size = 512 * KiB;
     memory_region_init_ram(sram, NULL, "ef405ep.sram", sram_size,
@@ -429,7 +429,6 @@ static void taihu_405ep_init(MachineState *machine)
     const char *kernel_filename = machine->kernel_filename;
     const char *initrd_filename = machine->initrd_filename;
     char *filename;
-    qemu_irq *pic;
     MemoryRegion *sysmem = get_system_memory();
     MemoryRegion *bios;
     MemoryRegion *ram_memories = g_new(MemoryRegion, 2);
@@ -440,6 +439,7 @@ static void taihu_405ep_init(MachineState *machine)
     int linux_boot;
     int fl_idx;
     DriveInfo *dinfo;
+    DeviceState *uicdev;
 
     if (machine->ram_size != mc->default_ram_size) {
         char *sz = size_to_str(mc->default_ram_size);
@@ -459,7 +459,7 @@ static void taihu_405ep_init(MachineState *machine)
                              "taihu_405ep.ram-1", machine->ram, ram_bases[1],
                              ram_sizes[1]);
     ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,
-                  33333333, &pic, kernel_filename == NULL ? 0 : 1);
+                  33333333, &uicdev, kernel_filename == NULL ? 0 : 1);
     /* allocate and load BIOS */
     fl_idx = 0;
 #if defined(USE_FLASH_BIOS)
diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c
index 3e191ae4af..fe047074a1 100644
--- a/hw/ppc/ppc405_uc.c
+++ b/hw/ppc/ppc405_uc.c
@@ -36,6 +36,9 @@
 #include "sysemu/sysemu.h"
 #include "qemu/log.h"
 #include "exec/address-spaces.h"
+#include "hw/intc/ppc-uic.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
 
 //#define DEBUG_OPBA
 //#define DEBUG_SDRAM
@@ -1446,14 +1449,15 @@ CPUPPCState *ppc405ep_init(MemoryRegion *address_space_mem,
                         MemoryRegion ram_memories[2],
                         hwaddr ram_bases[2],
                         hwaddr ram_sizes[2],
-                        uint32_t sysclk, qemu_irq **picp,
+                        uint32_t sysclk, DeviceState **uicdevp,
                         int do_init)
 {
     clk_setup_t clk_setup[PPC405EP_CLK_NB], tlb_clk_setup;
     qemu_irq dma_irqs[4], gpt_irqs[5], mal_irqs[4];
     PowerPCCPU *cpu;
     CPUPPCState *env;
-    qemu_irq *pic, *irqs;
+    DeviceState *uicdev;
+    SysBusDevice *uicsbd;
 
     memset(clk_setup, 0, sizeof(clk_setup));
     /* init CPUs */
@@ -1474,59 +1478,69 @@ CPUPPCState *ppc405ep_init(MemoryRegion *address_space_mem,
     /* Initialize timers */
     ppc_booke_timers_init(cpu, sysclk, 0);
     /* Universal interrupt controller */
-    irqs = g_new0(qemu_irq, PPCUIC_OUTPUT_NB);
-    irqs[PPCUIC_OUTPUT_INT] =
-        ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
-    irqs[PPCUIC_OUTPUT_CINT] =
-        ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
-    pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
-    *picp = pic;
+    uicdev = qdev_new(TYPE_PPC_UIC);
+    uicsbd = SYS_BUS_DEVICE(uicdev);
+
+    object_property_set_link(OBJECT(uicdev), "cpu", OBJECT(cpu),
+                             &error_fatal);
+    sysbus_realize_and_unref(uicsbd, &error_fatal);
+
+    sysbus_connect_irq(uicsbd, PPCUIC_OUTPUT_INT,
+                       ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]);
+    sysbus_connect_irq(uicsbd, PPCUIC_OUTPUT_CINT,
+                       ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]);
+
+    *uicdevp = uicdev;
+
     /* SDRAM controller */
         /* XXX 405EP has no ECC interrupt */
-    ppc4xx_sdram_init(env, pic[17], 2, ram_memories,
+    ppc4xx_sdram_init(env, qdev_get_gpio_in(uicdev, 17), 2, ram_memories,
                       ram_bases, ram_sizes, do_init);
     /* External bus controller */
     ppc405_ebc_init(env);
     /* DMA controller */
-    dma_irqs[0] = pic[5];
-    dma_irqs[1] = pic[6];
-    dma_irqs[2] = pic[7];
-    dma_irqs[3] = pic[8];
+    dma_irqs[0] = qdev_get_gpio_in(uicdev, 5);
+    dma_irqs[1] = qdev_get_gpio_in(uicdev, 6);
+    dma_irqs[2] = qdev_get_gpio_in(uicdev, 7);
+    dma_irqs[3] = qdev_get_gpio_in(uicdev, 8);
     ppc405_dma_init(env, dma_irqs);
     /* IIC controller */
-    sysbus_create_simple(TYPE_PPC4xx_I2C, 0xef600500, pic[2]);
+    sysbus_create_simple(TYPE_PPC4xx_I2C, 0xef600500,
+                         qdev_get_gpio_in(uicdev, 2));
     /* GPIO */
     ppc405_gpio_init(0xef600700);
     /* Serial ports */
     if (serial_hd(0) != NULL) {
-        serial_mm_init(address_space_mem, 0xef600300, 0, pic[0],
+        serial_mm_init(address_space_mem, 0xef600300, 0,
+                       qdev_get_gpio_in(uicdev, 0),
                        PPC_SERIAL_MM_BAUDBASE, serial_hd(0),
                        DEVICE_BIG_ENDIAN);
     }
     if (serial_hd(1) != NULL) {
-        serial_mm_init(address_space_mem, 0xef600400, 0, pic[1],
+        serial_mm_init(address_space_mem, 0xef600400, 0,
+                       qdev_get_gpio_in(uicdev, 1),
                        PPC_SERIAL_MM_BAUDBASE, serial_hd(1),
                        DEVICE_BIG_ENDIAN);
     }
     /* OCM */
     ppc405_ocm_init(env);
     /* GPT */
-    gpt_irqs[0] = pic[19];
-    gpt_irqs[1] = pic[20];
-    gpt_irqs[2] = pic[21];
-    gpt_irqs[3] = pic[22];
-    gpt_irqs[4] = pic[23];
+    gpt_irqs[0] = qdev_get_gpio_in(uicdev, 19);
+    gpt_irqs[1] = qdev_get_gpio_in(uicdev, 20);
+    gpt_irqs[2] = qdev_get_gpio_in(uicdev, 21);
+    gpt_irqs[3] = qdev_get_gpio_in(uicdev, 22);
+    gpt_irqs[4] = qdev_get_gpio_in(uicdev, 23);
     ppc4xx_gpt_init(0xef600000, gpt_irqs);
     /* PCI */
-    /* Uses pic[3], pic[16], pic[18] */
+    /* Uses UIC IRQs 3, 16, 18 */
     /* MAL */
-    mal_irqs[0] = pic[11];
-    mal_irqs[1] = pic[12];
-    mal_irqs[2] = pic[13];
-    mal_irqs[3] = pic[14];
+    mal_irqs[0] = qdev_get_gpio_in(uicdev, 11);
+    mal_irqs[1] = qdev_get_gpio_in(uicdev, 12);
+    mal_irqs[2] = qdev_get_gpio_in(uicdev, 13);
+    mal_irqs[3] = qdev_get_gpio_in(uicdev, 14);
     ppc4xx_mal_init(env, 4, 2, mal_irqs);
     /* Ethernet */
-    /* Uses pic[9], pic[15], pic[17] */
+    /* Uses UIC IRQs 9, 15, 17 */
     /* CPU control */
     ppc405ep_cpc_init(env, clk_setup, sysclk);
 
-- 
2.29.2



  parent reply	other threads:[~2021-01-19  6:26 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-19  6:23 [PULL 00/13] ppc-for-6.0 queue 20210119 David Gibson
2021-01-19  6:23 ` [PULL 01/13] hw/ppc/sam460ex: Drop use of ppcuic_init() David Gibson
2021-01-19  6:23 ` [PULL 02/13] hw/ppc: Delete unused ppc405cr_init() code David Gibson
2021-01-19  6:23 ` [PULL 03/13] hw/intc/ppc-uic: Make default dcr-base 0xc0, not 0x30 David Gibson
2021-01-19  6:23 ` David Gibson [this message]
2021-01-19  6:23 ` [PULL 05/13] hw/ppc: Remove unused ppcuic_init() David Gibson
2021-01-19  6:23 ` [PULL 06/13] Revert "sam460ex: Remove FDT_PPC dependency from KConfig" David Gibson
2021-01-19  6:23 ` [PULL 07/13] Revert "ppc4xx: Move common dependency on serial to common option" David Gibson
2021-01-19  6:23 ` [PULL 08/13] sam460ex: Use type cast macro instead of simple cast David Gibson
2021-01-19  6:23 ` [PULL 09/13] spapr: Improve handling of memory unplug with old guests David Gibson
2021-01-19  6:23 ` [PULL 10/13] spapr.h: fix trailing whitespace in phb_placement David Gibson
2021-01-19  6:23 ` [PULL 11/13] spapr_hcall.c: make do_client_architecture_support static David Gibson
2021-01-19  6:23 ` [PULL 12/13] spapr_rtas.c: fix identation of rtas_ibm_suspend_me() args David Gibson
2021-01-19  6:23 ` [PULL 13/13] spapr_cpu_core.c: use g_auto* in spapr_create_vcpu() David Gibson
2021-01-19 11:53 ` [PULL 00/13] ppc-for-6.0 queue 20210119 Peter Maydell

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210119062318.13857-5-david@gibson.dropbear.id.au \
    --to=david@gibson.dropbear.id.au \
    --cc=groug@kaod.org \
    --cc=peter.maydell@linaro.org \
    --cc=qemu-devel@nongnu.org \
    --cc=qemu-ppc@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.